From 874d2f61d31e596c36af7732dc1b3aa2dc233824 Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Tue, 30 Jun 2009 15:18:14 +0100 Subject: dm exception store: really fix type lookup Fix exception store name handling. We need to reference exception store by zero terminated string. Fixes regression introduced in commit f6bd4eb73cdf2a5bf954e497972842f39cabb7e3 Cc: Yi Yang Cc: Jonathan Brassow Cc: stable@kernel.org Cc: Andrew Morton Signed-off-by: Milan Broz Signed-off-by: Alasdair G Kergon --- drivers/md/dm-exception-store.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index c3ae51584b12..3710ff88fc10 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -195,7 +195,7 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, struct dm_exception_store **store) { int r = 0; - struct dm_exception_store_type *type; + struct dm_exception_store_type *type = NULL; struct dm_exception_store *tmp_store; char persistent; @@ -211,12 +211,15 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, } persistent = toupper(*argv[1]); - if (persistent != 'P' && persistent != 'N') { + if (persistent == 'P') + type = get_type("P"); + else if (persistent == 'N') + type = get_type("N"); + else { ti->error = "Persistent flag is not P or N"; return -EINVAL; } - type = get_type(&persistent); if (!type) { ti->error = "Exception store type not recognised"; r = -EINVAL; -- cgit v1.2.3-59-g8ed1b From ea9df47cc92573b159ef3b4fda516c32cba9c4fd Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 30 Jun 2009 15:18:17 +0100 Subject: dm table: fix blk_stack_limits arg to use bytes not sectors The offset passed to blk_stack_limits() must be in bytes not sectors. Fixes false warnings like the following: device-mapper: table: 254:1: target device sda6 is misaligned Signed-off-by: Mike Snitzer Reported-by: Frans Pop Tested-by: Frans Pop Signed-off-by: Alasdair G Kergon --- drivers/md/dm-table.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 4899ebe767c8..2cba557d9e61 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -495,7 +495,7 @@ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev, return 0; } - if (blk_stack_limits(limits, &q->limits, start) < 0) + if (blk_stack_limits(limits, &q->limits, start << 9) < 0) DMWARN("%s: target device %s is misaligned", dm_device_name(ti->table->md), bdevname(bdev, b)); -- cgit v1.2.3-59-g8ed1b From 8f6c2e4b325a8e9f8f47febb2fd0ed4fae7d45a9 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Wed, 1 Jul 2009 11:13:45 +1000 Subject: md: Use new topology calls to indicate alignment and I/O sizes Switch MD over to the new disk_stack_limits() function which checks for aligment and adjusts preferred I/O sizes when stacking. Also indicate preferred I/O sizes where applicable. Signed-off-by: Martin K. Petersen Signed-off-by: Mike Snitzer Signed-off-by: NeilBrown --- drivers/md/linear.c | 4 ++-- drivers/md/multipath.c | 7 ++++--- drivers/md/raid0.c | 9 +++++++-- drivers/md/raid1.c | 9 ++++----- drivers/md/raid10.c | 19 +++++++++++++------ drivers/md/raid5.c | 10 +++++++++- 6 files changed, 39 insertions(+), 19 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 15c8b7b25a9b..5810fa906af0 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -166,8 +166,8 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) rdev->sectors = sectors * mddev->chunk_sectors; } - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index cbe368fa6598..237fe3fd235c 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -294,7 +294,8 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) for (path = first; path <= last; path++) if ((p=conf->multipaths+path)->rdev == NULL) { q = rdev->bdev->bd_disk->queue; - blk_queue_stack_limits(mddev->queue, q); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as @@ -463,9 +464,9 @@ static int multipath_run (mddev_t *mddev) disk = conf->multipaths + disk_idx; disk->rdev = rdev; + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); /* as we don't honour merge_bvec_fn, we must never risk * violating it, not that we ever expect a device with * a merge_bvec_fn to be involved in multipath */ diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index ab4a489d8695..335f490dcad6 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -170,8 +170,8 @@ static int create_strip_zones(mddev_t *mddev) } dev[j] = rdev1; - blk_queue_stack_limits(mddev->queue, - rdev1->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev1->bdev, + rdev1->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. @@ -250,6 +250,11 @@ static int create_strip_zones(mddev_t *mddev) mddev->chunk_sectors << 9); goto abort; } + + blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9); + blk_queue_io_opt(mddev->queue, + (mddev->chunk_sectors << 9) * mddev->raid_disks); + printk(KERN_INFO "raid0: done.\n"); mddev->private = conf; return 0; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 89939a7aef57..0569efba0c02 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1123,8 +1123,8 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) for (mirror = first; mirror <= last; mirror++) if ( !(p=conf->mirrors+mirror)->rdev) { - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. @@ -1988,9 +1988,8 @@ static int run(mddev_t *mddev) disk = conf->mirrors + disk_idx; disk->rdev = rdev; - - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index ae12ceafe10c..7298a5e5a183 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1151,8 +1151,8 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) for ( ; mirror <= last ; mirror++) if ( !(p=conf->mirrors+mirror)->rdev) { - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. @@ -2044,7 +2044,7 @@ raid10_size(mddev_t *mddev, sector_t sectors, int raid_disks) static int run(mddev_t *mddev) { conf_t *conf; - int i, disk_idx; + int i, disk_idx, chunk_size; mirror_info_t *disk; mdk_rdev_t *rdev; int nc, fc, fo; @@ -2130,6 +2130,14 @@ static int run(mddev_t *mddev) spin_lock_init(&conf->device_lock); mddev->queue->queue_lock = &conf->device_lock; + chunk_size = mddev->chunk_sectors << 9; + blk_queue_io_min(mddev->queue, chunk_size); + if (conf->raid_disks % conf->near_copies) + blk_queue_io_opt(mddev->queue, chunk_size * conf->raid_disks); + else + blk_queue_io_opt(mddev->queue, chunk_size * + (conf->raid_disks / conf->near_copies)); + list_for_each_entry(rdev, &mddev->disks, same_set) { disk_idx = rdev->raid_disk; if (disk_idx >= mddev->raid_disks @@ -2138,9 +2146,8 @@ static int run(mddev_t *mddev) disk = conf->mirrors + disk_idx; disk->rdev = rdev; - - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f9f991e6e138..92ef9b6abfc7 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4452,7 +4452,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev) static int run(mddev_t *mddev) { raid5_conf_t *conf; - int working_disks = 0; + int working_disks = 0, chunk_size; mdk_rdev_t *rdev; if (mddev->recovery_cp != MaxSector) @@ -4607,6 +4607,14 @@ static int run(mddev_t *mddev) md_set_array_sectors(mddev, raid5_size(mddev, 0, 0)); blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec); + chunk_size = mddev->chunk_sectors << 9; + blk_queue_io_min(mddev->queue, chunk_size); + blk_queue_io_opt(mddev->queue, chunk_size * + (conf->raid_disks - conf->max_degraded)); + + list_for_each_entry(rdev, &mddev->disks, same_set) + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); return 0; abort: -- cgit v1.2.3-59-g8ed1b From b8d966efd9a46a9a35beac50cbff6e30565125ef Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 11:14:04 +1000 Subject: md: avoid dereferencing NULL pointer when accessing suspend_* sysfs attributes. If we try to modify one of the md/ sysfs files suspend_lo or suspend_hi when the array is not active, we dereference a NULL. Protect against that. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/md.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 09be637d52cb..2166af8a7654 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3573,7 +3573,8 @@ suspend_lo_store(mddev_t *mddev, const char *buf, size_t len) char *e; unsigned long long new = simple_strtoull(buf, &e, 10); - if (mddev->pers->quiesce == NULL) + if (mddev->pers == NULL || + mddev->pers->quiesce == NULL) return -EINVAL; if (buf == e || (*e && *e != '\n')) return -EINVAL; @@ -3601,7 +3602,8 @@ suspend_hi_store(mddev_t *mddev, const char *buf, size_t len) char *e; unsigned long long new = simple_strtoull(buf, &e, 10); - if (mddev->pers->quiesce == NULL) + if (mddev->pers == NULL || + mddev->pers->quiesce == NULL) return -EINVAL; if (buf == e || (*e && *e != '\n')) return -EINVAL; -- cgit v1.2.3-59-g8ed1b From 1ec22eb2b4a2e1a763106bce36b11c02eaa84e61 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 12:27:21 +1000 Subject: md: fix error path when duplicate name is found on md device creation. When an md device is created by name (rather than number) we need to check that the name is not already in use. If this check finds a duplicate, we return an error without dropping the lock or freeing the newly create mddev. This patch fixes that. Cc: stable@kernel.org Found-by: Jiri Slaby Signed-off-by: NeilBrown --- drivers/md/md.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 2166af8a7654..58bee2366ea8 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3862,6 +3862,8 @@ static int md_alloc(dev_t dev, char *name) if (mddev2->gendisk && strcmp(mddev2->gendisk->disk_name, name) == 0) { spin_unlock(&all_mddevs_lock); + mutex_unlock(&disks_mutex); + mddev_put(mddev); return -EEXIST; } spin_unlock(&all_mddevs_lock); -- cgit v1.2.3-59-g8ed1b From 0909dc448c98ed5021c87ffdfc09fb473aa464ab Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 12:27:21 +1000 Subject: md: tidy up error paths in md_alloc As the recent bug in md_alloc showed, having a single exit path for unlocking and putting is a good idea. So restructure md_alloc to have a single mutex_unlock and mddev_put, and use gotos where necessary. Found-by: Jiri Slaby Signed-off-by: NeilBrown --- drivers/md/md.c | 38 ++++++++++++++++++-------------------- 1 file changed, 18 insertions(+), 20 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 58bee2366ea8..65fe35b5e34a 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3846,11 +3846,9 @@ static int md_alloc(dev_t dev, char *name) flush_scheduled_work(); mutex_lock(&disks_mutex); - if (mddev->gendisk) { - mutex_unlock(&disks_mutex); - mddev_put(mddev); - return -EEXIST; - } + error = -EEXIST; + if (mddev->gendisk) + goto abort; if (name) { /* Need to ensure that 'name' is not a duplicate. @@ -3862,19 +3860,15 @@ static int md_alloc(dev_t dev, char *name) if (mddev2->gendisk && strcmp(mddev2->gendisk->disk_name, name) == 0) { spin_unlock(&all_mddevs_lock); - mutex_unlock(&disks_mutex); - mddev_put(mddev); - return -EEXIST; + goto abort; } spin_unlock(&all_mddevs_lock); } + error = -ENOMEM; mddev->queue = blk_alloc_queue(GFP_KERNEL); - if (!mddev->queue) { - mutex_unlock(&disks_mutex); - mddev_put(mddev); - return -ENOMEM; - } + if (!mddev->queue) + goto abort; mddev->queue->queuedata = mddev; /* Can be unlocked because the queue is new: no concurrency */ @@ -3884,11 +3878,9 @@ static int md_alloc(dev_t dev, char *name) disk = alloc_disk(1 << shift); if (!disk) { - mutex_unlock(&disks_mutex); blk_cleanup_queue(mddev->queue); mddev->queue = NULL; - mddev_put(mddev); - return -ENOMEM; + goto abort; } disk->major = MAJOR(mddev->unit); disk->first_minor = unit << shift; @@ -3910,16 +3902,22 @@ static int md_alloc(dev_t dev, char *name) mddev->gendisk = disk; error = kobject_init_and_add(&mddev->kobj, &md_ktype, &disk_to_dev(disk)->kobj, "%s", "md"); - mutex_unlock(&disks_mutex); - if (error) + if (error) { + /* This isn't possible, but as kobject_init_and_add is marked + * __must_check, we must do something with the result + */ printk(KERN_WARNING "md: cannot register %s/md - name in use\n", disk->disk_name); - else { + error = 0; + } + abort: + mutex_unlock(&disks_mutex); + if (!error) { kobject_uevent(&mddev->kobj, KOBJ_ADD); mddev->sysfs_state = sysfs_get_dirent(mddev->kobj.sd, "array_state"); } mddev_put(mddev); - return 0; + return error; } static struct kobject *md_probe(dev_t dev, int *part, void *data) -- cgit v1.2.3-59-g8ed1b From a5c308d4d1659b1f4833b863394e3e24cdbdfc6e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 13:15:35 +1000 Subject: md/raid5: suspend shouldn't affect read requests. md allows write to regions on an array to be suspended temporarily. This allows user-space to participate is aspects of reshape. In particular, data can be copied with not risk of a race. We should not be blocking read requests though, so don't. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/raid5.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 92ef9b6abfc7..1f444ae07f89 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3702,7 +3702,8 @@ static int make_request(struct request_queue *q, struct bio * bi) /* FIXME what if we get a false positive because these * are being updated. */ - if (logical_sector >= mddev->suspend_lo && + if (bio_data_dir(bi) == WRITE && + logical_sector >= mddev->suspend_lo && logical_sector < mddev->suspend_hi) { release_stripe(sh); schedule(); -- cgit v1.2.3-59-g8ed1b From e62e58a5ffdc98ac28d8dbd070c857620d541f99 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 13:15:35 +1000 Subject: md: use interruptible wait when duration is controlled by userspace. User space can set various limits on an md array so that resync waits when it gets to a certain point, or so that I/O is blocked for a short while. When md is waiting against one of these limit, it should use an interruptible wait so as not to add to the load average, and so are not to trigger a warning if the wait goes on for too long. Signed-off-by: NeilBrown --- drivers/md/md.c | 14 ++++++++++---- drivers/md/raid5.c | 15 +++++++++++---- 2 files changed, 21 insertions(+), 8 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 65fe35b5e34a..0f4a70c43ffc 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6336,10 +6336,16 @@ void md_do_sync(mddev_t *mddev) sysfs_notify(&mddev->kobj, NULL, "sync_completed"); } - if (j >= mddev->resync_max) - wait_event(mddev->recovery_wait, - mddev->resync_max > j - || kthread_should_stop()); + while (j >= mddev->resync_max && !kthread_should_stop()) { + /* As this condition is controlled by user-space, + * we can block indefinitely, so use '_interruptible' + * to avoid triggering warnings. + */ + flush_signals(current); /* just in case */ + wait_event_interruptible(mddev->recovery_wait, + mddev->resync_max > j + || kthread_should_stop()); + } if (kthread_should_stop()) goto interrupted; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 1f444ae07f89..37835538b58e 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3699,14 +3699,21 @@ static int make_request(struct request_queue *q, struct bio * bi) goto retry; } } - /* FIXME what if we get a false positive because these - * are being updated. - */ + if (bio_data_dir(bi) == WRITE && logical_sector >= mddev->suspend_lo && logical_sector < mddev->suspend_hi) { release_stripe(sh); - schedule(); + /* As the suspend_* range is controlled by + * userspace, we want an interruptible + * wait. + */ + flush_signals(current); + prepare_to_wait(&conf->wait_for_overlap, + &w, TASK_INTERRUPTIBLE); + if (logical_sector >= mddev->suspend_lo && + logical_sector < mddev->suspend_hi) + schedule(); goto retry; } -- cgit v1.2.3-59-g8ed1b From 7878cba9f0037f5599004b03a1260b32d9050360 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Fri, 26 Jun 2009 15:37:49 +0200 Subject: block: Create bip slabs with embedded integrity vectors This patch restores stacking ability to the block layer integrity infrastructure by creating a set of dedicated bip slabs. Each bip slab has an embedded bio_vec array at the end. This cuts down on memory allocations and also simplifies the code compared to the original bvec version. Only the largest bip slab is backed by a mempool. The pool is contained in the bio_set so stacking drivers can ensure forward progress. Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe --- block/blk-core.c | 2 +- drivers/md/dm.c | 4 +- fs/bio-integrity.c | 170 ++++++++++++++++++++++++++++++++++++++-------------- fs/bio.c | 11 +++- include/linux/bio.h | 22 +++++-- 5 files changed, 152 insertions(+), 57 deletions(-) (limited to 'drivers/md') diff --git a/block/blk-core.c b/block/blk-core.c index b06cf5c2a829..345d99da8d41 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2365,7 +2365,7 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src, __bio_clone(bio, bio_src); if (bio_integrity(bio_src) && - bio_integrity_clone(bio, bio_src, gfp_mask)) + bio_integrity_clone(bio, bio_src, gfp_mask, bs)) goto free_and_out; if (bio_ctr && bio_ctr(bio, bio_src, data)) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 3c6d4ee8921d..9acd54a5cffb 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1017,7 +1017,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector, clone->bi_flags |= 1 << BIO_CLONED; if (bio_integrity(bio)) { - bio_integrity_clone(clone, bio, GFP_NOIO); + bio_integrity_clone(clone, bio, GFP_NOIO, bs); bio_integrity_trim(clone, bio_sector_offset(bio, idx, offset), len); } @@ -1045,7 +1045,7 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector, clone->bi_flags &= ~(1 << BIO_SEG_VALID); if (bio_integrity(bio)) { - bio_integrity_clone(clone, bio, GFP_NOIO); + bio_integrity_clone(clone, bio, GFP_NOIO, bs); if (idx != bio->bi_idx || clone->bi_size < bio->bi_size) bio_integrity_trim(clone, diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c index 31c46a241bac..49a34e7f7306 100644 --- a/fs/bio-integrity.c +++ b/fs/bio-integrity.c @@ -1,7 +1,7 @@ /* * bio-integrity.c - bio data integrity extensions * - * Copyright (C) 2007, 2008 Oracle Corporation + * Copyright (C) 2007, 2008, 2009 Oracle Corporation * Written by: Martin K. Petersen * * This program is free software; you can redistribute it and/or @@ -25,63 +25,121 @@ #include #include -static struct kmem_cache *bio_integrity_slab __read_mostly; -static mempool_t *bio_integrity_pool; -static struct bio_set *integrity_bio_set; +struct integrity_slab { + struct kmem_cache *slab; + unsigned short nr_vecs; + char name[8]; +}; + +#define IS(x) { .nr_vecs = x, .name = "bip-"__stringify(x) } +struct integrity_slab bip_slab[BIOVEC_NR_POOLS] __read_mostly = { + IS(1), IS(4), IS(16), IS(64), IS(128), IS(BIO_MAX_PAGES), +}; +#undef IS + static struct workqueue_struct *kintegrityd_wq; +static inline unsigned int vecs_to_idx(unsigned int nr) +{ + switch (nr) { + case 1: + return 0; + case 2 ... 4: + return 1; + case 5 ... 16: + return 2; + case 17 ... 64: + return 3; + case 65 ... 128: + return 4; + case 129 ... BIO_MAX_PAGES: + return 5; + default: + BUG(); + } +} + +static inline int use_bip_pool(unsigned int idx) +{ + if (idx == BIOVEC_NR_POOLS) + return 1; + + return 0; +} + /** - * bio_integrity_alloc - Allocate integrity payload and attach it to bio + * bio_integrity_alloc_bioset - Allocate integrity payload and attach it to bio * @bio: bio to attach integrity metadata to * @gfp_mask: Memory allocation mask * @nr_vecs: Number of integrity metadata scatter-gather elements + * @bs: bio_set to allocate from * * Description: This function prepares a bio for attaching integrity * metadata. nr_vecs specifies the maximum number of pages containing * integrity metadata that can be attached. */ -struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio, - gfp_t gfp_mask, - unsigned int nr_vecs) +struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio, + gfp_t gfp_mask, + unsigned int nr_vecs, + struct bio_set *bs) { struct bio_integrity_payload *bip; - struct bio_vec *iv; - unsigned long idx; + unsigned int idx = vecs_to_idx(nr_vecs); BUG_ON(bio == NULL); + bip = NULL; - bip = mempool_alloc(bio_integrity_pool, gfp_mask); - if (unlikely(bip == NULL)) { - printk(KERN_ERR "%s: could not alloc bip\n", __func__); - return NULL; - } + /* Lower order allocations come straight from slab */ + if (!use_bip_pool(idx)) + bip = kmem_cache_alloc(bip_slab[idx].slab, gfp_mask); - memset(bip, 0, sizeof(*bip)); + /* Use mempool if lower order alloc failed or max vecs were requested */ + if (bip == NULL) { + bip = mempool_alloc(bs->bio_integrity_pool, gfp_mask); - iv = bvec_alloc_bs(gfp_mask, nr_vecs, &idx, integrity_bio_set); - if (unlikely(iv == NULL)) { - printk(KERN_ERR "%s: could not alloc bip_vec\n", __func__); - mempool_free(bip, bio_integrity_pool); - return NULL; + if (unlikely(bip == NULL)) { + printk(KERN_ERR "%s: could not alloc bip\n", __func__); + return NULL; + } } - bip->bip_pool = idx; - bip->bip_vec = iv; + memset(bip, 0, sizeof(*bip)); + + bip->bip_slab = idx; bip->bip_bio = bio; bio->bi_integrity = bip; return bip; } +EXPORT_SYMBOL(bio_integrity_alloc_bioset); + +/** + * bio_integrity_alloc - Allocate integrity payload and attach it to bio + * @bio: bio to attach integrity metadata to + * @gfp_mask: Memory allocation mask + * @nr_vecs: Number of integrity metadata scatter-gather elements + * + * Description: This function prepares a bio for attaching integrity + * metadata. nr_vecs specifies the maximum number of pages containing + * integrity metadata that can be attached. + */ +struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio, + gfp_t gfp_mask, + unsigned int nr_vecs) +{ + return bio_integrity_alloc_bioset(bio, gfp_mask, nr_vecs, fs_bio_set); +} EXPORT_SYMBOL(bio_integrity_alloc); /** * bio_integrity_free - Free bio integrity payload * @bio: bio containing bip to be freed + * @bs: bio_set this bio was allocated from * * Description: Used to free the integrity portion of a bio. Usually * called from bio_free(). */ -void bio_integrity_free(struct bio *bio) +void bio_integrity_free(struct bio *bio, struct bio_set *bs) { struct bio_integrity_payload *bip = bio->bi_integrity; @@ -92,8 +150,10 @@ void bio_integrity_free(struct bio *bio) && bip->bip_buf != NULL) kfree(bip->bip_buf); - bvec_free_bs(integrity_bio_set, bip->bip_vec, bip->bip_pool); - mempool_free(bip, bio_integrity_pool); + if (use_bip_pool(bip->bip_slab)) + mempool_free(bip, bs->bio_integrity_pool); + else + kmem_cache_free(bip_slab[bip->bip_slab].slab, bip); bio->bi_integrity = NULL; } @@ -114,7 +174,7 @@ int bio_integrity_add_page(struct bio *bio, struct page *page, struct bio_integrity_payload *bip = bio->bi_integrity; struct bio_vec *iv; - if (bip->bip_vcnt >= bvec_nr_vecs(bip->bip_pool)) { + if (bip->bip_vcnt >= bvec_nr_vecs(bip->bip_slab)) { printk(KERN_ERR "%s: bip_vec full\n", __func__); return 0; } @@ -647,8 +707,8 @@ void bio_integrity_split(struct bio *bio, struct bio_pair *bp, int sectors) bp->iv1 = bip->bip_vec[0]; bp->iv2 = bip->bip_vec[0]; - bp->bip1.bip_vec = &bp->iv1; - bp->bip2.bip_vec = &bp->iv2; + bp->bip1.bip_vec[0] = bp->iv1; + bp->bip2.bip_vec[0] = bp->iv2; bp->iv1.bv_len = sectors * bi->tuple_size; bp->iv2.bv_offset += sectors * bi->tuple_size; @@ -667,17 +727,19 @@ EXPORT_SYMBOL(bio_integrity_split); * @bio: New bio * @bio_src: Original bio * @gfp_mask: Memory allocation mask + * @bs: bio_set to allocate bip from * * Description: Called to allocate a bip when cloning a bio */ -int bio_integrity_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp_mask) +int bio_integrity_clone(struct bio *bio, struct bio *bio_src, + gfp_t gfp_mask, struct bio_set *bs) { struct bio_integrity_payload *bip_src = bio_src->bi_integrity; struct bio_integrity_payload *bip; BUG_ON(bip_src == NULL); - bip = bio_integrity_alloc(bio, gfp_mask, bip_src->bip_vcnt); + bip = bio_integrity_alloc_bioset(bio, gfp_mask, bip_src->bip_vcnt, bs); if (bip == NULL) return -EIO; @@ -693,25 +755,43 @@ int bio_integrity_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp_mask) } EXPORT_SYMBOL(bio_integrity_clone); -static int __init bio_integrity_init(void) +int bioset_integrity_create(struct bio_set *bs, int pool_size) { - kintegrityd_wq = create_workqueue("kintegrityd"); + unsigned int max_slab = vecs_to_idx(BIO_MAX_PAGES); + + bs->bio_integrity_pool = + mempool_create_slab_pool(pool_size, bip_slab[max_slab].slab); + if (!bs->bio_integrity_pool) + return -1; + + return 0; +} +EXPORT_SYMBOL(bioset_integrity_create); + +void bioset_integrity_free(struct bio_set *bs) +{ + if (bs->bio_integrity_pool) + mempool_destroy(bs->bio_integrity_pool); +} +EXPORT_SYMBOL(bioset_integrity_free); + +void __init bio_integrity_init(void) +{ + unsigned int i; + + kintegrityd_wq = create_workqueue("kintegrityd"); if (!kintegrityd_wq) panic("Failed to create kintegrityd\n"); - bio_integrity_slab = KMEM_CACHE(bio_integrity_payload, - SLAB_HWCACHE_ALIGN|SLAB_PANIC); + for (i = 0 ; i < BIOVEC_NR_POOLS ; i++) { + unsigned int size; - bio_integrity_pool = mempool_create_slab_pool(BIO_POOL_SIZE, - bio_integrity_slab); - if (!bio_integrity_pool) - panic("bio_integrity: can't allocate bip pool\n"); + size = sizeof(struct bio_integrity_payload) + + bip_slab[i].nr_vecs * sizeof(struct bio_vec); - integrity_bio_set = bioset_create(BIO_POOL_SIZE, 0); - if (!integrity_bio_set) - panic("bio_integrity: can't allocate bio_set\n"); - - return 0; + bip_slab[i].slab = + kmem_cache_create(bip_slab[i].name, size, 0, + SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL); + } } -subsys_initcall(bio_integrity_init); diff --git a/fs/bio.c b/fs/bio.c index 24c914043532..1486b19fc431 100644 --- a/fs/bio.c +++ b/fs/bio.c @@ -238,7 +238,7 @@ void bio_free(struct bio *bio, struct bio_set *bs) bvec_free_bs(bs, bio->bi_io_vec, BIO_POOL_IDX(bio)); if (bio_integrity(bio)) - bio_integrity_free(bio); + bio_integrity_free(bio, bs); /* * If we have front padding, adjust the bio pointer before freeing @@ -341,7 +341,7 @@ struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs) static void bio_kmalloc_destructor(struct bio *bio) { if (bio_integrity(bio)) - bio_integrity_free(bio); + bio_integrity_free(bio, fs_bio_set); kfree(bio); } @@ -472,7 +472,7 @@ struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask) if (bio_integrity(bio)) { int ret; - ret = bio_integrity_clone(b, bio, gfp_mask); + ret = bio_integrity_clone(b, bio, gfp_mask, fs_bio_set); if (ret < 0) { bio_put(b); @@ -1539,6 +1539,7 @@ void bioset_free(struct bio_set *bs) if (bs->bio_pool) mempool_destroy(bs->bio_pool); + bioset_integrity_free(bs); biovec_free_pools(bs); bio_put_slab(bs); @@ -1579,6 +1580,9 @@ struct bio_set *bioset_create(unsigned int pool_size, unsigned int front_pad) if (!bs->bio_pool) goto bad; + if (bioset_integrity_create(bs, pool_size)) + goto bad; + if (!biovec_create_pools(bs, pool_size)) return bs; @@ -1616,6 +1620,7 @@ static int __init init_bio(void) if (!bio_slabs) panic("bio: can't allocate bios\n"); + bio_integrity_init(); biovec_init_slabs(); fs_bio_set = bioset_create(BIO_POOL_SIZE, 0); diff --git a/include/linux/bio.h b/include/linux/bio.h index 2a04eb54c0dd..2892b710771c 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -319,7 +319,6 @@ static inline int bio_has_allocated_vec(struct bio *bio) */ struct bio_integrity_payload { struct bio *bip_bio; /* parent bio */ - struct bio_vec *bip_vec; /* integrity data vector */ sector_t bip_sector; /* virtual start sector */ @@ -328,11 +327,12 @@ struct bio_integrity_payload { unsigned int bip_size; - unsigned short bip_pool; /* pool the ivec came from */ + unsigned short bip_slab; /* slab the bip came from */ unsigned short bip_vcnt; /* # of integrity bio_vecs */ unsigned short bip_idx; /* current bip_vec index */ struct work_struct bip_work; /* I/O completion */ + struct bio_vec bip_vec[0]; /* embedded bvec array */ }; #endif /* CONFIG_BLK_DEV_INTEGRITY */ @@ -430,6 +430,9 @@ struct bio_set { unsigned int front_pad; mempool_t *bio_pool; +#if defined(CONFIG_BLK_DEV_INTEGRITY) + mempool_t *bio_integrity_pool; +#endif mempool_t *bvec_pool; }; @@ -634,8 +637,9 @@ static inline struct bio *bio_list_get(struct bio_list *bl) #define bio_integrity(bio) (bio->bi_integrity != NULL) +extern struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *, gfp_t, unsigned int, struct bio_set *); extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int); -extern void bio_integrity_free(struct bio *); +extern void bio_integrity_free(struct bio *, struct bio_set *); extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int); extern int bio_integrity_enabled(struct bio *bio); extern int bio_integrity_set_tag(struct bio *, void *, unsigned int); @@ -645,21 +649,27 @@ extern void bio_integrity_endio(struct bio *, int); extern void bio_integrity_advance(struct bio *, unsigned int); extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int); extern void bio_integrity_split(struct bio *, struct bio_pair *, int); -extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t); +extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t, struct bio_set *); +extern int bioset_integrity_create(struct bio_set *, int); +extern void bioset_integrity_free(struct bio_set *); +extern void bio_integrity_init(void); #else /* CONFIG_BLK_DEV_INTEGRITY */ #define bio_integrity(a) (0) +#define bioset_integrity_create(a, b) (0) #define bio_integrity_prep(a) (0) #define bio_integrity_enabled(a) (0) -#define bio_integrity_clone(a, b, c) (0) -#define bio_integrity_free(a) do { } while (0) +#define bio_integrity_clone(a, b, c, d) (0) +#define bioset_integrity_free(a) do { } while (0) +#define bio_integrity_free(a, b) do { } while (0) #define bio_integrity_endio(a, b) do { } while (0) #define bio_integrity_advance(a, b) do { } while (0) #define bio_integrity_trim(a, b, c) do { } while (0) #define bio_integrity_split(a, b, c) do { } while (0) #define bio_integrity_set_tag(a, b, c) do { } while (0) #define bio_integrity_get_tag(a, b, c) do { } while (0) +#define bio_integrity_init(a) do { } while (0) #endif /* CONFIG_BLK_DEV_INTEGRITY */ -- cgit v1.2.3-59-g8ed1b From ad361c9884e809340f6daca80d56a9e9c871690a Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 6 Jul 2009 13:05:40 -0700 Subject: Remove multiple KERN_ prefixes from printk formats Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up handling of log-levels and newlines") changed printk semantics. printk lines with multiple KERN_ prefixes are no longer emitted as before the patch. is now included in the output on each additional use. Remove all uses of multiple KERN_s in formats. Signed-off-by: Joe Perches Signed-off-by: Linus Torvalds --- arch/avr32/kernel/traps.c | 13 ++++---- arch/blackfin/kernel/setup.c | 41 ++++++++++++------------- arch/blackfin/kernel/traps.c | 34 ++++++++++----------- arch/m68knommu/kernel/process.c | 21 +++++++------ arch/m68knommu/kernel/traps.c | 6 ++-- arch/mn10300/kernel/traps.c | 21 +++++-------- arch/parisc/kernel/process.c | 2 +- arch/parisc/kernel/traps.c | 20 ++++++------- arch/um/kernel/sysrq.c | 4 +-- arch/x86/kernel/apic/io_apic.c | 1 - arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 2 +- arch/x86/kernel/cpu/mcheck/mce.c | 12 ++++---- arch/x86/kernel/e820.c | 7 ++--- arch/x86/kernel/pci-gart_64.c | 2 +- arch/x86/mm/fault.c | 9 +++--- arch/xtensa/kernel/traps.c | 6 ++-- drivers/block/amiflop.c | 2 +- drivers/block/xsysace.c | 7 +++-- drivers/char/hw_random/intel-rng.c | 9 +++--- drivers/char/isicom.c | 16 +++++----- drivers/i2c/busses/i2c-ibm_iic.c | 9 +++--- drivers/md/md.c | 18 ++++++----- drivers/misc/sgi-xp/xpnet.c | 4 +-- drivers/net/a2065.c | 12 ++------ drivers/net/arcnet/arcnet.c | 26 +++++++--------- drivers/net/bmac.c | 7 +++-- drivers/net/bnx2x_main.c | 7 +++-- drivers/net/dl2k.c | 17 ++++++----- drivers/net/epic100.c | 5 ++-- drivers/net/fealnx.c | 15 ++++++---- drivers/net/hamachi.c | 23 +++++++------- drivers/net/hamradio/baycom_epp.c | 2 +- drivers/net/hamradio/baycom_par.c | 2 +- drivers/net/hamradio/baycom_ser_fdx.c | 2 +- drivers/net/hamradio/baycom_ser_hdx.c | 2 +- drivers/net/natsemi.c | 4 +-- drivers/net/ne.c | 2 +- drivers/net/pci-skeleton.c | 2 +- drivers/net/pcmcia/ibmtr_cs.c | 13 ++++---- drivers/net/pcmcia/nmclan_cs.c | 15 ++++------ drivers/net/pcnet32.c | 50 +++++++++++++++---------------- drivers/net/starfire.c | 2 +- drivers/net/sundance.c | 6 ++-- drivers/net/tsi108_eth.c | 8 +++-- drivers/net/tulip/de2104x.c | 7 +++-- drivers/net/tulip/tulip_core.c | 14 +++++---- drivers/net/tulip/winbond-840.c | 6 ++-- drivers/net/wan/hd64570.c | 3 +- drivers/net/wan/hd64572.c | 3 +- drivers/net/wan/sbni.c | 8 ++--- drivers/net/wireless/ray_cs.c | 9 +++--- drivers/net/wireless/wavelan_cs.c | 13 ++------ drivers/net/yellowfin.c | 23 +++++++------- drivers/parisc/eisa_enumerator.c | 14 ++++----- drivers/pcmcia/tcic.c | 3 +- drivers/scsi/atari_NCR5380.c | 3 +- drivers/scsi/mac53c94.c | 5 ++-- drivers/scsi/sg.c | 2 +- drivers/scsi/sun3_NCR5380.c | 3 +- drivers/serial/8250_pci.c | 11 +++---- drivers/ssb/pcmcia.c | 4 +-- drivers/usb/core/hcd.c | 2 +- drivers/video/amba-clcd.c | 7 +++-- drivers/video/matrox/matroxfb_DAC1064.c | 4 +-- drivers/video/matrox/matroxfb_Ti3026.c | 4 +-- drivers/video/stifb.c | 7 ++--- fs/jffs2/erase.c | 10 ++++--- kernel/module.c | 6 ++-- sound/pci/emu10k1/p16v.c | 2 +- sound/usb/usx2y/usbusx2yaudio.c | 7 +++-- 70 files changed, 330 insertions(+), 338 deletions(-) (limited to 'drivers/md') diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c index 6e3d491184ea..b91b2044af9c 100644 --- a/arch/avr32/kernel/traps.c +++ b/arch/avr32/kernel/traps.c @@ -32,22 +32,25 @@ void NORET_TYPE die(const char *str, struct pt_regs *regs, long err) spin_lock_irq(&die_lock); bust_spinlocks(1); - printk(KERN_ALERT "Oops: %s, sig: %ld [#%d]\n" KERN_EMERG, + printk(KERN_ALERT "Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); + + printk(KERN_EMERG); + #ifdef CONFIG_PREEMPT - printk("PREEMPT "); + printk(KERN_CONT "PREEMPT "); #endif #ifdef CONFIG_FRAME_POINTER - printk("FRAME_POINTER "); + printk(KERN_CONT "FRAME_POINTER "); #endif if (current_cpu_data.features & AVR32_FEATURE_OCD) { unsigned long did = ocd_read(DID); - printk("chip: 0x%03lx:0x%04lx rev %lu\n", + printk(KERN_CONT "chip: 0x%03lx:0x%04lx rev %lu\n", (did >> 1) & 0x7ff, (did >> 12) & 0x7fff, (did >> 28) & 0xf); } else { - printk("cpu: arch %u r%u / core %u r%u\n", + printk(KERN_CONT "cpu: arch %u r%u / core %u r%u\n", current_cpu_data.arch_type, current_cpu_data.arch_revision, current_cpu_data.cpu_type, diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 298f023bcc09..6136c33e919f 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -408,13 +408,14 @@ static void __init print_memory_map(char *who) bfin_memmap.map[i].addr + bfin_memmap.map[i].size); switch (bfin_memmap.map[i].type) { case BFIN_MEMMAP_RAM: - printk("(usable)\n"); - break; + printk(KERN_CONT "(usable)\n"); + break; case BFIN_MEMMAP_RESERVED: - printk("(reserved)\n"); - break; - default: printk("type %lu\n", bfin_memmap.map[i].type); - break; + printk(KERN_CONT "(reserved)\n"); + break; + default: + printk(KERN_CONT "type %lu\n", bfin_memmap.map[i].type); + break; } } } @@ -614,19 +615,19 @@ static __init void memory_setup(void) printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", _ramend >> 20); printk(KERN_INFO "Memory map:\n" - KERN_INFO " fixedcode = 0x%p-0x%p\n" - KERN_INFO " text = 0x%p-0x%p\n" - KERN_INFO " rodata = 0x%p-0x%p\n" - KERN_INFO " bss = 0x%p-0x%p\n" - KERN_INFO " data = 0x%p-0x%p\n" - KERN_INFO " stack = 0x%p-0x%p\n" - KERN_INFO " init = 0x%p-0x%p\n" - KERN_INFO " available = 0x%p-0x%p\n" + " fixedcode = 0x%p-0x%p\n" + " text = 0x%p-0x%p\n" + " rodata = 0x%p-0x%p\n" + " bss = 0x%p-0x%p\n" + " data = 0x%p-0x%p\n" + " stack = 0x%p-0x%p\n" + " init = 0x%p-0x%p\n" + " available = 0x%p-0x%p\n" #ifdef CONFIG_MTD_UCLINUX - KERN_INFO " rootfs = 0x%p-0x%p\n" + " rootfs = 0x%p-0x%p\n" #endif #if DMA_UNCACHED_REGION > 0 - KERN_INFO " DMA Zone = 0x%p-0x%p\n" + " DMA Zone = 0x%p-0x%p\n" #endif , (void *)FIXED_CODE_START, (void *)FIXED_CODE_END, _stext, _etext, @@ -859,13 +860,13 @@ void __init setup_arch(char **cmdline_p) #endif printk(KERN_INFO "Hardware Trace "); if (bfin_read_TBUFCTL() & 0x1) - printk("Active "); + printk(KERN_CONT "Active "); else - printk("Off "); + printk(KERN_CONT "Off "); if (bfin_read_TBUFCTL() & 0x2) - printk("and Enabled\n"); + printk(KERN_CONT "and Enabled\n"); else - printk("and Disabled\n"); + printk(KERN_CONT "and Disabled\n"); #if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH) /* we need to initialize the Flashrom device here since we might diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 8eeb457ce5d5..8a1caf2bb5b9 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -212,7 +212,7 @@ asmlinkage void double_fault_c(struct pt_regs *fp) console_verbose(); oops_in_progress = 1; #ifdef CONFIG_DEBUG_VERBOSE - printk(KERN_EMERG "\n" KERN_EMERG "Double Fault\n"); + printk(KERN_EMERG "Double Fault\n"); #ifdef CONFIG_DEBUG_DOUBLEFAULT_PRINT if (((long)fp->seqstat & SEQSTAT_EXCAUSE) == VEC_UNCOV) { unsigned int cpu = smp_processor_id(); @@ -583,15 +583,14 @@ asmlinkage void trap_c(struct pt_regs *fp) #ifndef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE if (trapnr == VEC_CPLB_I_M || trapnr == VEC_CPLB_M) verbose_printk(KERN_NOTICE "No trace since you do not have " - "CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE enabled\n" - KERN_NOTICE "\n"); + "CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE enabled\n\n"); else #endif dump_bfin_trace_buffer(); if (oops_in_progress) { /* Dump the current kernel stack */ - verbose_printk(KERN_NOTICE "\n" KERN_NOTICE "Kernel Stack\n"); + verbose_printk(KERN_NOTICE "Kernel Stack\n"); show_stack(current, NULL); print_modules(); #ifndef CONFIG_ACCESS_CHECK @@ -906,7 +905,7 @@ void show_stack(struct task_struct *task, unsigned long *stack) ret_addr = 0; if (!j && i % 8 == 0) - printk("\n" KERN_NOTICE "%p:",addr); + printk(KERN_NOTICE "%p:",addr); /* if it is an odd address, or zero, just skip it */ if (*addr & 0x1 || !*addr) @@ -996,9 +995,9 @@ void dump_bfin_process(struct pt_regs *fp) printk(KERN_NOTICE "CPU = %d\n", current_thread_info()->cpu); if (!((unsigned long)current->mm & 0x3) && (unsigned long)current->mm >= FIXED_CODE_START) - verbose_printk(KERN_NOTICE "TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n" - KERN_NOTICE " BSS = 0x%p-0x%p USER-STACK = 0x%p\n" - KERN_NOTICE "\n", + verbose_printk(KERN_NOTICE + "TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n" + " BSS = 0x%p-0x%p USER-STACK = 0x%p\n\n", (void *)current->mm->start_code, (void *)current->mm->end_code, (void *)current->mm->start_data, @@ -1009,8 +1008,8 @@ void dump_bfin_process(struct pt_regs *fp) else verbose_printk(KERN_NOTICE "invalid mm\n"); } else - verbose_printk(KERN_NOTICE "\n" KERN_NOTICE - "No Valid process in current context\n"); + verbose_printk(KERN_NOTICE + "No Valid process in current context\n"); #endif } @@ -1028,7 +1027,7 @@ void dump_bfin_mem(struct pt_regs *fp) addr < (unsigned short *)((unsigned long)erraddr & ~0xF) + 0x10; addr++) { if (!((unsigned long)addr & 0xF)) - verbose_printk("\n" KERN_NOTICE "0x%p: ", addr); + verbose_printk(KERN_NOTICE "0x%p: ", addr); if (!get_instruction(&val, addr)) { val = 0; @@ -1056,9 +1055,9 @@ void dump_bfin_mem(struct pt_regs *fp) oops_in_progress)){ verbose_printk(KERN_NOTICE "Looks like this was a deferred error - sorry\n"); #ifndef CONFIG_DEBUG_HWERR - verbose_printk(KERN_NOTICE "The remaining message may be meaningless\n" - KERN_NOTICE "You should enable CONFIG_DEBUG_HWERR to get a" - " better idea where it came from\n"); + verbose_printk(KERN_NOTICE +"The remaining message may be meaningless\n" +"You should enable CONFIG_DEBUG_HWERR to get a better idea where it came from\n"); #else /* If we are handling only one peripheral interrupt * and current mm and pid are valid, and the last error @@ -1114,9 +1113,10 @@ void show_regs(struct pt_regs *fp) verbose_printk(KERN_NOTICE "%s", linux_banner); - verbose_printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\t\t%s\n", print_tainted()); + verbose_printk(KERN_NOTICE "\nSEQUENCER STATUS:\t\t%s\n", + print_tainted()); verbose_printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx SYSCFG: %04lx\n", - (long)fp->seqstat, fp->ipend, fp->syscfg); + (long)fp->seqstat, fp->ipend, fp->syscfg); if ((fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR) { verbose_printk(KERN_NOTICE " HWERRCAUSE: 0x%lx\n", (fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14); @@ -1184,7 +1184,7 @@ unlock: verbose_printk(KERN_NOTICE "ICPLB_FAULT_ADDR: %s\n", buf); } - verbose_printk(KERN_NOTICE "\n" KERN_NOTICE "PROCESSOR STATE:\n"); + verbose_printk(KERN_NOTICE "PROCESSOR STATE:\n"); verbose_printk(KERN_NOTICE " R0 : %08lx R1 : %08lx R2 : %08lx R3 : %08lx\n", fp->r0, fp->r1, fp->r2, fp->r3); verbose_printk(KERN_NOTICE " R4 : %08lx R5 : %08lx R6 : %08lx R7 : %08lx\n", diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c index 1e96c6eb6312..8f8f4abab2ff 100644 --- a/arch/m68knommu/kernel/process.c +++ b/arch/m68knommu/kernel/process.c @@ -290,7 +290,7 @@ void dump(struct pt_regs *fp) unsigned char *tp; int i; - printk(KERN_EMERG "\n" KERN_EMERG "CURRENT PROCESS:\n" KERN_EMERG "\n"); + printk(KERN_EMERG "\nCURRENT PROCESS:\n\n"); printk(KERN_EMERG "COMM=%s PID=%d\n", current->comm, current->pid); if (current->mm) { @@ -301,8 +301,7 @@ void dump(struct pt_regs *fp) (int) current->mm->end_data, (int) current->mm->end_data, (int) current->mm->brk); - printk(KERN_EMERG "USER-STACK=%08x KERNEL-STACK=%08x\n" - KERN_EMERG "\n", + printk(KERN_EMERG "USER-STACK=%08x KERNEL-STACK=%08x\n\n", (int) current->mm->start_stack, (int)(((unsigned long) current) + THREAD_SIZE)); } @@ -313,35 +312,35 @@ void dump(struct pt_regs *fp) fp->d0, fp->d1, fp->d2, fp->d3); printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", fp->d4, fp->d5, fp->a0, fp->a1); - printk(KERN_EMERG "\n" KERN_EMERG "USP: %08x TRAPFRAME: %08x\n", + printk(KERN_EMERG "\nUSP: %08x TRAPFRAME: %08x\n", (unsigned int) rdusp(), (unsigned int) fp); - printk(KERN_EMERG "\n" KERN_EMERG "CODE:"); + printk(KERN_EMERG "\nCODE:"); tp = ((unsigned char *) fp->pc) - 0x20; for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) { if ((i % 0x10) == 0) - printk("\n" KERN_EMERG "%08x: ", (int) (tp + i)); + printk(KERN_EMERG "%08x: ", (int) (tp + i)); printk("%08x ", (int) *sp++); } - printk("\n" KERN_EMERG "\n"); + printk(KERN_EMERG "\n"); printk(KERN_EMERG "KERNEL STACK:"); tp = ((unsigned char *) fp) - 0x40; for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) { if ((i % 0x10) == 0) - printk("\n" KERN_EMERG "%08x: ", (int) (tp + i)); + printk(KERN_EMERG "%08x: ", (int) (tp + i)); printk("%08x ", (int) *sp++); } - printk("\n" KERN_EMERG "\n"); + printk(KERN_EMERG "\n"); printk(KERN_EMERG "USER STACK:"); tp = (unsigned char *) (rdusp() - 0x10); for (sp = (unsigned long *) tp, i = 0; (i < 0x80); i += 4) { if ((i % 0x10) == 0) - printk("\n" KERN_EMERG "%08x: ", (int) (tp + i)); + printk(KERN_EMERG "%08x: ", (int) (tp + i)); printk("%08x ", (int) *sp++); } - printk("\n" KERN_EMERG "\n"); + printk(KERN_EMERG "\n"); } /* diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c index 51d325343ab5..3739c8f657d7 100644 --- a/arch/m68knommu/kernel/traps.c +++ b/arch/m68knommu/kernel/traps.c @@ -111,7 +111,7 @@ static void print_this_address(unsigned long addr, int i) if (i % 5) printk(KERN_CONT " [%08lx] ", addr); else - printk(KERN_CONT "\n" KERN_EMERG " [%08lx] ", addr); + printk(KERN_EMERG " [%08lx] ", addr); i++; #endif } @@ -137,8 +137,8 @@ static void __show_stack(struct task_struct *task, unsigned long *stack) if (stack + 1 + i > endstack) break; if (i % 8 == 0) - printk("\n" KERN_EMERG " "); - printk(" %08lx", *(stack + i)); + printk(KERN_EMERG " "); + printk(KERN_CONT " %08lx", *(stack + i)); } printk("\n"); i = 0; diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c index 681ad8c9e4fb..0dfdc5001124 100644 --- a/arch/mn10300/kernel/traps.c +++ b/arch/mn10300/kernel/traps.c @@ -136,8 +136,7 @@ void show_trace(unsigned long *sp) unsigned long *stack, addr, module_start, module_end; int i; - printk(KERN_EMERG "\n" - KERN_EMERG "Call Trace:"); + printk(KERN_EMERG "\nCall Trace:"); stack = sp; i = 0; @@ -153,7 +152,7 @@ void show_trace(unsigned long *sp) printk("\n"); #else if ((i % 6) == 0) - printk("\n" KERN_EMERG " "); + printk(KERN_EMERG " "); printk("[<%08lx>] ", addr); i++; #endif @@ -180,7 +179,7 @@ void show_stack(struct task_struct *task, unsigned long *sp) if (((long) stack & (THREAD_SIZE - 1)) == 0) break; if ((i % 8) == 0) - printk("\n" KERN_EMERG " "); + printk(KERN_EMERG " "); printk("%08lx ", *stack++); } @@ -264,8 +263,7 @@ void show_registers(struct pt_regs *regs) show_stack(current, (unsigned long *) sp); #if 0 - printk(KERN_EMERG "\n" - KERN_EMERG "Code: "); + printk(KERN_EMERG "\nCode: "); if (regs->pc < PAGE_OFFSET) goto bad; @@ -311,16 +309,14 @@ void die(const char *str, struct pt_regs *regs, enum exception_code code) { console_verbose(); spin_lock_irq(&die_lock); - printk(KERN_EMERG "\n" - KERN_EMERG "%s: %04x\n", + printk(KERN_EMERG "\n%s: %04x\n", str, code & 0xffff); show_registers(regs); if (regs->pc >= 0x02000000 && regs->pc < 0x04000000 && (regs->epsw & (EPSW_IM | EPSW_IE)) != (EPSW_IM | EPSW_IE)) { printk(KERN_EMERG "Exception in usermode interrupt handler\n"); - printk(KERN_EMERG "\n" - KERN_EMERG " Please connect to kernel debugger !!\n"); + printk(KERN_EMERG "\nPlease connect to kernel debugger !!\n"); asm volatile ("0: bra 0b"); } @@ -429,9 +425,8 @@ asmlinkage void io_bus_error(u32 bcberr, u32 bcbear, struct pt_regs *regs) { console_verbose(); - printk(KERN_EMERG "\n" - KERN_EMERG "Asynchronous I/O Bus Error\n" - KERN_EMERG "==========================\n"); + printk(KERN_EMERG "Asynchronous I/O Bus Error\n"); + printk(KERN_EMERG "==========================\n"); if (bcberr & BCBERR_BEME) printk(KERN_EMERG "- Multiple recorded errors\n"); diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 61c07078c072..1f3aa8db0203 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -156,7 +156,7 @@ void machine_power_off(void) * software. The user has to press the button himself. */ printk(KERN_EMERG "System shut down completed.\n" - KERN_EMERG "Please power this system off now."); + "Please power this system off now."); } void (*pm_power_off)(void) = machine_power_off; diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index c32f5d6d778e..528f0ff9b273 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -250,15 +250,14 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err) oops_enter(); /* Amuse the user in a SPARC fashion */ - if (err) printk( -KERN_CRIT " _______________________________ \n" -KERN_CRIT " < Your System ate a SPARC! Gah! >\n" -KERN_CRIT " ------------------------------- \n" -KERN_CRIT " \\ ^__^\n" -KERN_CRIT " \\ (xx)\\_______\n" -KERN_CRIT " (__)\\ )\\/\\\n" -KERN_CRIT " U ||----w |\n" -KERN_CRIT " || ||\n"); + if (err) printk(KERN_CRIT + " _______________________________ \n" + " < Your System ate a SPARC! Gah! >\n" + " ------------------------------- \n" + " \\ ^__^\n" + " (__)\\ )\\/\\\n" + " U ||----w |\n" + " || ||\n"); /* unlock the pdc lock if necessary */ pdc_emergency_unlock(); @@ -797,7 +796,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs) else printk(KERN_DEBUG "User Fault (long pointer) (fault %d) ", code); - printk("pid=%d command='%s'\n", task_pid_nr(current), current->comm); + printk(KERN_CONT "pid=%d command='%s'\n", + task_pid_nr(current), current->comm); show_regs(regs); #endif si.si_signo = SIGSEGV; diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index 56d43d0a3960..0960de54495a 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -70,8 +70,8 @@ void show_stack(struct task_struct *task, unsigned long *esp) if (kstack_end(stack)) break; if (i && ((i % 8) == 0)) - printk("\n" KERN_INFO " "); - printk("%08lx ", *stack++); + printk(KERN_INFO " "); + printk(KERN_CONT "%08lx ", *stack++); } show_trace(task, esp); diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 8fd1efb5a0bd..90b5e6efa938 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -1739,7 +1739,6 @@ __apicdebuginit(void) print_local_APIC(void *dummy) if (apic_verbosity == APIC_QUIET) return; - printk(KERN_DEBUG "\n"); printk(KERN_DEBUG "printing local APIC contents on CPU#%d/%d:\n", smp_processor_id(), hard_smp_processor_id()); v = apic_read(APIC_ID); diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index ae068f59603f..2a50ef891000 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -1259,7 +1259,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) { static const char ACPI_PSS_BIOS_BUG_MSG[] = KERN_ERR FW_BUG PFX "No compatible ACPI _PSS objects found.\n" - KERN_ERR FW_BUG PFX "Try again with latest BIOS.\n"; + FW_BUG PFX "Try again with latest BIOS.\n"; struct powernow_k8_data *data; struct init_on_cpu init_on_cpu; int rc; diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index af425b83202b..484c1e5f658e 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -194,14 +194,14 @@ static void print_mce(struct mce *m) m->cs, m->ip); if (m->cs == __KERNEL_CS) print_symbol("{%s}", m->ip); - printk("\n"); + printk(KERN_CONT "\n"); } printk(KERN_EMERG "TSC %llx ", m->tsc); if (m->addr) - printk("ADDR %llx ", m->addr); + printk(KERN_CONT "ADDR %llx ", m->addr); if (m->misc) - printk("MISC %llx ", m->misc); - printk("\n"); + printk(KERN_CONT "MISC %llx ", m->misc); + printk(KERN_CONT "\n"); printk(KERN_EMERG "PROCESSOR %u:%x TIME %llu SOCKET %u APIC %x\n", m->cpuvendor, m->cpuid, m->time, m->socketid, m->apicid); @@ -209,13 +209,13 @@ static void print_mce(struct mce *m) static void print_mce_head(void) { - printk(KERN_EMERG "\n" KERN_EMERG "HARDWARE ERROR\n"); + printk(KERN_EMERG "\nHARDWARE ERROR\n"); } static void print_mce_tail(void) { printk(KERN_EMERG "This is not a software problem!\n" - KERN_EMERG "Run through mcelog --ascii to decode and contact your hardware vendor\n"); + "Run through mcelog --ascii to decode and contact your hardware vendor\n"); } #define PANIC_TIMEOUT 5 /* 5 seconds */ diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index c4ca89d9aaf4..5cb5725b2bae 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -627,10 +627,9 @@ __init void e820_setup_gap(void) #ifdef CONFIG_X86_64 if (!found) { gapstart = (max_pfn << PAGE_SHIFT) + 1024*1024; - printk(KERN_ERR "PCI: Warning: Cannot find a gap in the 32bit " - "address range\n" - KERN_ERR "PCI: Unassigned devices with 32bit resource " - "registers may break!\n"); + printk(KERN_ERR + "PCI: Warning: Cannot find a gap in the 32bit address range\n" + "PCI: Unassigned devices with 32bit resource registers may break!\n"); } #endif diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index cfd9f9063896..d2e56b8f48e7 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -675,7 +675,7 @@ static __init int init_k8_gatt(struct agp_kern_info *info) nommu: /* Should not happen anymore */ printk(KERN_WARNING "PCI-DMA: More than 4GB of RAM and no IOMMU\n" - KERN_WARNING "falling back to iommu=soft.\n"); + "falling back to iommu=soft.\n"); return -1; } diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 78a5fff857be..85307cc6e45f 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -426,10 +426,11 @@ static noinline int vmalloc_fault(unsigned long address) } static const char errata93_warning[] = -KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n" -KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n" -KERN_ERR "******* Please consider a BIOS update.\n" -KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n"; +KERN_ERR +"******* Your BIOS seems to not contain a fix for K8 errata #93\n" +"******* Working around it, but it may cause SEGVs or burn power.\n" +"******* Please consider a BIOS update.\n" +"******* Disabling USB legacy in the BIOS may also help.\n"; /* * No vm86 mode in 64-bit mode: diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c index ba9ab9349782..e64efac3b9db 100644 --- a/arch/xtensa/kernel/traps.c +++ b/arch/xtensa/kernel/traps.c @@ -354,10 +354,10 @@ void show_regs(struct pt_regs * regs) for (i = 0; i < 16; i++) { if ((i % 8) == 0) - printk ("\n" KERN_INFO "a%02d: ", i); - printk("%08lx ", regs->areg[i]); + printk(KERN_INFO "a%02d:", i); + printk(KERN_CONT " %08lx", regs->areg[i]); } - printk("\n"); + printk(KERN_CONT "\n"); printk("pc: %08lx, ps: %08lx, depc: %08lx, excvaddr: %08lx\n", regs->pc, regs->ps, regs->depc, regs->excvaddr); diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 9c6e5b0fe894..2f07b7c99a95 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -1645,7 +1645,7 @@ static int __init fd_probe_drives(void) { int drive,drives,nomem; - printk(KERN_INFO "FD: probing units\n" KERN_INFO "found "); + printk(KERN_INFO "FD: probing units\nfound "); drives=0; nomem=0; for(drive=0;drivedev, " ctrl: %.8x seccnt/cmd: %.4x ver:%.4x\n" - KERN_INFO " status:%.8x mpu_lba:%.8x busmode:%4x\n" - KERN_INFO " error: %.8x cfg_lba:%.8x fatstat:%.4x\n", + dev_info(ace->dev, + " ctrl: %.8x seccnt/cmd: %.4x ver:%.4x\n" + " status:%.8x mpu_lba:%.8x busmode:%4x\n" + " error: %.8x cfg_lba:%.8x fatstat:%.4x\n", ace_in32(ace, ACE_CTRL), ace_in(ace, ACE_SECCNTCMD), ace_in(ace, ACE_VERSION), diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c index 5dcbe603eca2..91b53eb1c053 100644 --- a/drivers/char/hw_random/intel-rng.c +++ b/drivers/char/hw_random/intel-rng.c @@ -305,10 +305,11 @@ static int __init intel_init_hw_struct(struct intel_rng_hw *intel_rng_hw, (BIOS_CNTL_LOCK_ENABLE_MASK|BIOS_CNTL_WRITE_ENABLE_MASK)) == BIOS_CNTL_LOCK_ENABLE_MASK) { static __initdata /*const*/ char warning[] = - KERN_WARNING PFX "Firmware space is locked read-only. If you can't or\n" - KERN_WARNING PFX "don't want to disable this in firmware setup, and if\n" - KERN_WARNING PFX "you are certain that your system has a functional\n" - KERN_WARNING PFX "RNG, try using the 'no_fwh_detect' option.\n"; + KERN_WARNING +PFX "Firmware space is locked read-only. If you can't or\n" +PFX "don't want to disable this in firmware setup, and if\n" +PFX "you are certain that your system has a functional\n" +PFX "RNG, try using the 'no_fwh_detect' option.\n"; if (no_fwh_detect) return -ENODEV; diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index 4159292e35cf..621d1184673c 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -1478,10 +1478,10 @@ static int __devinit load_firmware(struct pci_dev *pdev, status = inw(base + 0x4); if (status != 0) { dev_warn(&pdev->dev, "Card%d rejected load header:\n" - KERN_WARNING "Address:0x%x\n" - KERN_WARNING "Count:0x%x\n" - KERN_WARNING "Status:0x%x\n", - index + 1, frame->addr, frame->count, status); + "Address:0x%x\n" + "Count:0x%x\n" + "Status:0x%x\n", + index + 1, frame->addr, frame->count, status); goto errrelfw; } outsw(base, frame->data, word_count); @@ -1526,10 +1526,10 @@ static int __devinit load_firmware(struct pci_dev *pdev, status = inw(base + 0x4); if (status != 0) { dev_warn(&pdev->dev, "Card%d rejected verify header:\n" - KERN_WARNING "Address:0x%x\n" - KERN_WARNING "Count:0x%x\n" - KERN_WARNING "Status: 0x%x\n", - index + 1, frame->addr, frame->count, status); + "Address:0x%x\n" + "Count:0x%x\n" + "Status: 0x%x\n", + index + 1, frame->addr, frame->count, status); goto errrelfw; } diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c index e4476743f203..b1bc6e277d2a 100644 --- a/drivers/i2c/busses/i2c-ibm_iic.c +++ b/drivers/i2c/busses/i2c-ibm_iic.c @@ -85,10 +85,11 @@ static void dump_iic_regs(const char* header, struct ibm_iic_private* dev) { volatile struct iic_regs __iomem *iic = dev->vaddr; printk(KERN_DEBUG "ibm-iic%d: %s\n", dev->idx, header); - printk(KERN_DEBUG " cntl = 0x%02x, mdcntl = 0x%02x\n" - KERN_DEBUG " sts = 0x%02x, extsts = 0x%02x\n" - KERN_DEBUG " clkdiv = 0x%02x, xfrcnt = 0x%02x\n" - KERN_DEBUG " xtcntlss = 0x%02x, directcntl = 0x%02x\n", + printk(KERN_DEBUG + " cntl = 0x%02x, mdcntl = 0x%02x\n" + " sts = 0x%02x, extsts = 0x%02x\n" + " clkdiv = 0x%02x, xfrcnt = 0x%02x\n" + " xtcntlss = 0x%02x, directcntl = 0x%02x\n", in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts), in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt), in_8(&iic->xtcntlss), in_8(&iic->directcntl)); diff --git a/drivers/md/md.c b/drivers/md/md.c index 0f4a70c43ffc..d4351ff0849f 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1756,9 +1756,10 @@ static void print_sb_1(struct mdp_superblock_1 *sb) __u8 *uuid; uuid = sb->set_uuid; - printk(KERN_INFO "md: SB: (V:%u) (F:0x%08x) Array-ID:<%02x%02x%02x%02x" - ":%02x%02x:%02x%02x:%02x%02x:%02x%02x%02x%02x%02x%02x>\n" - KERN_INFO "md: Name: \"%s\" CT:%llu\n", + printk(KERN_INFO + "md: SB: (V:%u) (F:0x%08x) Array-ID:<%02x%02x%02x%02x" + ":%02x%02x:%02x%02x:%02x%02x:%02x%02x%02x%02x%02x%02x>\n" + "md: Name: \"%s\" CT:%llu\n", le32_to_cpu(sb->major_version), le32_to_cpu(sb->feature_map), uuid[0], uuid[1], uuid[2], uuid[3], @@ -1770,12 +1771,13 @@ static void print_sb_1(struct mdp_superblock_1 *sb) & MD_SUPERBLOCK_1_TIME_SEC_MASK); uuid = sb->device_uuid; - printk(KERN_INFO "md: L%u SZ%llu RD:%u LO:%u CS:%u DO:%llu DS:%llu SO:%llu" + printk(KERN_INFO + "md: L%u SZ%llu RD:%u LO:%u CS:%u DO:%llu DS:%llu SO:%llu" " RO:%llu\n" - KERN_INFO "md: Dev:%08x UUID: %02x%02x%02x%02x:%02x%02x:%02x%02x:%02x%02x" - ":%02x%02x%02x%02x%02x%02x\n" - KERN_INFO "md: (F:0x%08x) UT:%llu Events:%llu ResyncOffset:%llu CSUM:0x%08x\n" - KERN_INFO "md: (MaxDev:%u) \n", + "md: Dev:%08x UUID: %02x%02x%02x%02x:%02x%02x:%02x%02x:%02x%02x" + ":%02x%02x%02x%02x%02x%02x\n" + "md: (F:0x%08x) UT:%llu Events:%llu ResyncOffset:%llu CSUM:0x%08x\n" + "md: (MaxDev:%u) \n", le32_to_cpu(sb->level), (unsigned long long)le64_to_cpu(sb->size), le32_to_cpu(sb->raid_disks), diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c index 8d1c60a3f0df..5d778ec8cdb2 100644 --- a/drivers/misc/sgi-xp/xpnet.c +++ b/drivers/misc/sgi-xp/xpnet.c @@ -235,7 +235,7 @@ xpnet_receive(short partid, int channel, struct xpnet_message *msg) skb->ip_summed = CHECKSUM_UNNECESSARY; dev_dbg(xpnet, "passing skb to network layer\n" - KERN_DEBUG "\tskb->head=0x%p skb->data=0x%p skb->tail=0x%p " + "\tskb->head=0x%p skb->data=0x%p skb->tail=0x%p " "skb->end=0x%p skb->len=%d\n", (void *)skb->head, (void *)skb->data, skb_tail_pointer(skb), skb_end_pointer(skb), skb->len); @@ -399,7 +399,7 @@ xpnet_send(struct sk_buff *skb, struct xpnet_pending_msg *queued_msg, msg->buf_pa = xp_pa((void *)start_addr); dev_dbg(xpnet, "sending XPC message to %d:%d\n" - KERN_DEBUG "msg->buf_pa=0x%lx, msg->size=%u, " + "msg->buf_pa=0x%lx, msg->size=%u, " "msg->leadin_ignore=%u, msg->tailout_ignore=%u\n", dest_partid, XPC_NET_CHANNEL, msg->buf_pa, msg->size, msg->leadin_ignore, msg->tailout_ignore); diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c index 85a18175730b..08787f5a22a3 100644 --- a/drivers/net/a2065.c +++ b/drivers/net/a2065.c @@ -569,16 +569,8 @@ static int lance_start_xmit (struct sk_buff *skb, struct net_device *dev) #ifdef DEBUG_DRIVER /* dump the packet */ - { - int i; - - for (i = 0; i < 64; i++) { - if ((i % 16) == 0) - printk("\n" KERN_DEBUG); - printk ("%2.2x ", skb->data [i]); - } - printk("\n"); - } + print_hex_dump(KERN_DEBUG, "skb->data: ", DUMP_PREFIX_NONE, + 16, 1, skb->data, 64, true); #endif entry = lp->tx_new & lp->tx_ring_mod_mask; ib->btx_ring [entry].length = (-skblen) | 0xf000; diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c index d6d4ab3b430c..7d227cdab9f8 100644 --- a/drivers/net/arcnet/arcnet.c +++ b/drivers/net/arcnet/arcnet.c @@ -158,15 +158,12 @@ module_exit(arcnet_exit); void arcnet_dump_skb(struct net_device *dev, struct sk_buff *skb, char *desc) { - int i; + char hdr[32]; - printk(KERN_DEBUG "%6s: skb dump (%s) follows:", dev->name, desc); - for (i = 0; i < skb->len; i++) { - if (i % 16 == 0) - printk("\n" KERN_DEBUG "[%04X] ", i); - printk("%02X ", ((u_char *) skb->data)[i]); - } - printk("\n"); + /* dump the packet */ + snprintf(hdr, sizeof(hdr), "%6s:%s skb->data:", dev->name, desc); + print_hex_dump(KERN_DEBUG, hdr, DUMP_PREFIX_OFFSET, + 16, 1, skb->data, skb->len, true); } EXPORT_SYMBOL(arcnet_dump_skb); @@ -184,6 +181,7 @@ static void arcnet_dump_packet(struct net_device *dev, int bufnum, int i, length; unsigned long flags = 0; static uint8_t buf[512]; + char hdr[32]; /* hw.copy_from_card expects IRQ context so take the IRQ lock to keep it single threaded */ @@ -197,14 +195,10 @@ static void arcnet_dump_packet(struct net_device *dev, int bufnum, /* if the offset[0] byte is nonzero, this is a 256-byte packet */ length = (buf[2] ? 256 : 512); - printk(KERN_DEBUG "%6s: packet dump (%s) follows:", dev->name, desc); - for (i = 0; i < length; i++) { - if (i % 16 == 0) - printk("\n" KERN_DEBUG "[%04X] ", i); - printk("%02X ", buf[i]); - } - printk("\n"); - + /* dump the packet */ + snprintf(hdr, sizeof(hdr), "%6s:%s packet dump:", dev->name, desc); + print_hex_dump(KERN_DEBUG, hdr, DUMP_PREFIX_OFFSET, + 16, 1, buf, length, true); } #else diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c index 9578a3dfac01..a76315dc7767 100644 --- a/drivers/net/bmac.c +++ b/drivers/net/bmac.c @@ -428,10 +428,11 @@ bmac_init_phy(struct net_device *dev) printk(KERN_DEBUG "phy registers:"); for (addr = 0; addr < 32; ++addr) { if ((addr & 7) == 0) - printk("\n" KERN_DEBUG); - printk(" %.4x", bmac_mif_read(dev, addr)); + printk(KERN_DEBUG); + printk(KERN_CONT " %.4x", bmac_mif_read(dev, addr)); } - printk("\n"); + print(KERN_CONT "\n"); + if (bp->is_bmac_plus) { unsigned int capable, ctrl; diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index 6c67be679764..c36a5f33739f 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -484,8 +484,9 @@ static void bnx2x_fw_dump(struct bnx2x *bp) mark = REG_RD(bp, MCP_REG_MCPR_SCRATCH + 0xf104); mark = ((mark + 0x3) & ~0x3); - printk(KERN_ERR PFX "begin fw dump (mark 0x%x)\n" KERN_ERR, mark); + printk(KERN_ERR PFX "begin fw dump (mark 0x%x)\n", mark); + printk(KERN_ERR PFX); for (offset = mark - 0x08000000; offset <= 0xF900; offset += 0x8*4) { for (word = 0; word < 8; word++) data[word] = htonl(REG_RD(bp, MCP_REG_MCPR_SCRATCH + @@ -500,7 +501,7 @@ static void bnx2x_fw_dump(struct bnx2x *bp) data[8] = 0x0; printk(KERN_CONT "%s", (char *)data); } - printk("\n" KERN_ERR PFX "end of fw dump\n"); + printk(KERN_ERR PFX "end of fw dump\n"); } static void bnx2x_panic_dump(struct bnx2x *bp) @@ -7354,7 +7355,7 @@ static void bnx2x_reset_task(struct work_struct *work) #ifdef BNX2X_STOP_ON_ERROR BNX2X_ERR("reset task called but STOP_ON_ERROR defined" " so reset not done to allow debug dump,\n" - KERN_ERR " you will need to reboot when done\n"); + " you will need to reboot when done\n"); return; #endif diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c index 895d72143ee0..4b6a219fecea 100644 --- a/drivers/net/dl2k.c +++ b/drivers/net/dl2k.c @@ -268,8 +268,9 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) printk(KERN_INFO "tx_coalesce:\t%d packets\n", tx_coalesce); if (np->coalesce) - printk(KERN_INFO "rx_coalesce:\t%d packets\n" - KERN_INFO "rx_timeout: \t%d ns\n", + printk(KERN_INFO + "rx_coalesce:\t%d packets\n" + "rx_timeout: \t%d ns\n", np->rx_coalesce, np->rx_timeout*640); if (np->vlan) printk(KERN_INFO "vlan(id):\t%d\n", np->vlan); @@ -1522,9 +1523,9 @@ mii_get_media (struct net_device *dev) printk (KERN_INFO "Operating at 10 Mbps, "); } if (bmcr & MII_BMCR_DUPLEX_MODE) { - printk ("Full duplex\n"); + printk (KERN_CONT "Full duplex\n"); } else { - printk ("Half duplex\n"); + printk (KERN_CONT "Half duplex\n"); } } if (np->tx_flow) @@ -1614,9 +1615,9 @@ mii_set_media (struct net_device *dev) } if (np->full_duplex) { bmcr |= MII_BMCR_DUPLEX_MODE; - printk ("Full duplex\n"); + printk (KERN_CONT "Full duplex\n"); } else { - printk ("Half duplex\n"); + printk (KERN_CONT "Half duplex\n"); } #if 0 /* Set 1000BaseT Master/Slave setting */ @@ -1669,9 +1670,9 @@ mii_get_media_pcs (struct net_device *dev) __u16 bmcr = mii_read (dev, phy_addr, PCS_BMCR); printk (KERN_INFO "Operating at 1000 Mbps, "); if (bmcr & MII_BMCR_DUPLEX_MODE) { - printk ("Full duplex\n"); + printk (KERN_CONT "Full duplex\n"); } else { - printk ("Half duplex\n"); + printk (KERN_CONT "Half duplex\n"); } } if (np->tx_flow) diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c index b60e27dfcfa7..88d7ebf31220 100644 --- a/drivers/net/epic100.c +++ b/drivers/net/epic100.c @@ -338,8 +338,7 @@ static int __devinit epic_init_one (struct pci_dev *pdev, #ifndef MODULE static int printed_version; if (!printed_version++) - printk (KERN_INFO "%s" KERN_INFO "%s", - version, version2); + printk(KERN_INFO "%s%s", version, version2); #endif card_idx++; @@ -1600,7 +1599,7 @@ static int __init epic_init (void) { /* when a module, this is printed whether or not devices are found in probe */ #ifdef MODULE - printk (KERN_INFO "%s" KERN_INFO "%s", + printk (KERN_INFO "%s%s", version, version2); #endif diff --git a/drivers/net/fealnx.c b/drivers/net/fealnx.c index 891be28a7d4f..053fb49820b9 100644 --- a/drivers/net/fealnx.c +++ b/drivers/net/fealnx.c @@ -1209,17 +1209,20 @@ static void fealnx_tx_timeout(struct net_device *dev) unsigned long flags; int i; - printk(KERN_WARNING "%s: Transmit timed out, status %8.8x," - " resetting...\n", dev->name, ioread32(ioaddr + ISR)); + printk(KERN_WARNING + "%s: Transmit timed out, status %8.8x, resetting...\n", + dev->name, ioread32(ioaddr + ISR)); { printk(KERN_DEBUG " Rx ring %p: ", np->rx_ring); for (i = 0; i < RX_RING_SIZE; i++) - printk(" %8.8x", (unsigned int) np->rx_ring[i].status); - printk("\n" KERN_DEBUG " Tx ring %p: ", np->tx_ring); + printk(PR_CONT " %8.8x", + (unsigned int) np->rx_ring[i].status); + printk(KERN_CONT "\n"); + printk(KERN_DEBUG " Tx ring %p: ", np->tx_ring); for (i = 0; i < TX_RING_SIZE; i++) - printk(" %4.4x", np->tx_ring[i].status); - printk("\n"); + printk(PR_CONT " %4.4x", np->tx_ring[i].status); + printk(PR_CONT "\n"); } spin_lock_irqsave(&np->lock, flags); diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c index 9d5b62cb30f7..d62378cbc149 100644 --- a/drivers/net/hamachi.c +++ b/drivers/net/hamachi.c @@ -173,8 +173,8 @@ static int tx_params[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; static const char version[] __devinitconst = KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " Written by Donald Becker\n" -KERN_INFO " Some modifications by Eric kasten \n" -KERN_INFO " Further modifications by Keith Underwood \n"; +" Some modifications by Eric kasten \n" +" Further modifications by Keith Underwood \n"; /* IP_MF appears to be only defined in , however, @@ -1080,11 +1080,14 @@ static void hamachi_tx_timeout(struct net_device *dev) { printk(KERN_DEBUG " Rx ring %p: ", hmp->rx_ring); for (i = 0; i < RX_RING_SIZE; i++) - printk(" %8.8x", le32_to_cpu(hmp->rx_ring[i].status_n_length)); - printk("\n"KERN_DEBUG" Tx ring %p: ", hmp->tx_ring); + printk(KERN_CONT " %8.8x", + le32_to_cpu(hmp->rx_ring[i].status_n_length)); + printk(KERN_CONT "\n"); + printk(KERN_DEBUG" Tx ring %p: ", hmp->tx_ring); for (i = 0; i < TX_RING_SIZE; i++) - printk(" %4.4x", le32_to_cpu(hmp->tx_ring[i].status_n_length)); - printk("\n"); + printk(KERN_CONT " %4.4x", + le32_to_cpu(hmp->tx_ring[i].status_n_length)); + printk(KERN_CONT "\n"); } /* Reinit the hardware and make sure the Rx and Tx processes @@ -1753,13 +1756,13 @@ static int hamachi_close(struct net_device *dev) #ifdef __i386__ if (hamachi_debug > 2) { - printk("\n"KERN_DEBUG" Tx ring at %8.8x:\n", + printk(KERN_DEBUG " Tx ring at %8.8x:\n", (int)hmp->tx_ring_dma); for (i = 0; i < TX_RING_SIZE; i++) - printk(" %c #%d desc. %8.8x %8.8x.\n", + printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x.\n", readl(ioaddr + TxCurPtr) == (long)&hmp->tx_ring[i] ? '>' : ' ', i, hmp->tx_ring[i].status_n_length, hmp->tx_ring[i].addr); - printk("\n"KERN_DEBUG " Rx ring %8.8x:\n", + printk(KERN_DEBUG " Rx ring %8.8x:\n", (int)hmp->rx_ring_dma); for (i = 0; i < RX_RING_SIZE; i++) { printk(KERN_DEBUG " %c #%d desc. %4.4x %8.8x\n", @@ -1770,7 +1773,7 @@ static int hamachi_close(struct net_device *dev) u16 *addr = (u16 *) hmp->rx_skbuff[i]->data; int j; - + printk(KERN_DEBUG "Addr: "); for (j = 0; j < 0x50; j++) printk(" %4.4x", addr[j]); printk("\n"); diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c index 5e4b7afd0683..352703255bba 100644 --- a/drivers/net/hamradio/baycom_epp.c +++ b/drivers/net/hamradio/baycom_epp.c @@ -68,7 +68,7 @@ static const char paranoia_str[] = KERN_ERR static const char bc_drvname[] = "baycom_epp"; static const char bc_drvinfo[] = KERN_INFO "baycom_epp: (C) 1998-2000 Thomas Sailer, HB9JNX/AE4WA\n" -KERN_INFO "baycom_epp: version 0.7 compiled " __TIME__ " " __DATE__ "\n"; +"baycom_epp: version 0.7 compiled " __TIME__ " " __DATE__ "\n"; /* --------------------------------------------------------------------- */ diff --git a/drivers/net/hamradio/baycom_par.c b/drivers/net/hamradio/baycom_par.c index 2e6fc4dc74b1..5f5af9a606f8 100644 --- a/drivers/net/hamradio/baycom_par.c +++ b/drivers/net/hamradio/baycom_par.c @@ -102,7 +102,7 @@ static const char bc_drvname[] = "baycom_par"; static const char bc_drvinfo[] = KERN_INFO "baycom_par: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA\n" -KERN_INFO "baycom_par: version 0.9 compiled " __TIME__ " " __DATE__ "\n"; +"baycom_par: version 0.9 compiled " __TIME__ " " __DATE__ "\n"; /* --------------------------------------------------------------------- */ diff --git a/drivers/net/hamradio/baycom_ser_fdx.c b/drivers/net/hamradio/baycom_ser_fdx.c index b6a816e60c0f..aa4488e871b2 100644 --- a/drivers/net/hamradio/baycom_ser_fdx.c +++ b/drivers/net/hamradio/baycom_ser_fdx.c @@ -91,7 +91,7 @@ static const char bc_drvname[] = "baycom_ser_fdx"; static const char bc_drvinfo[] = KERN_INFO "baycom_ser_fdx: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA\n" -KERN_INFO "baycom_ser_fdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n"; +"baycom_ser_fdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n"; /* --------------------------------------------------------------------- */ diff --git a/drivers/net/hamradio/baycom_ser_hdx.c b/drivers/net/hamradio/baycom_ser_hdx.c index 3bcc57acbe6d..88c593596020 100644 --- a/drivers/net/hamradio/baycom_ser_hdx.c +++ b/drivers/net/hamradio/baycom_ser_hdx.c @@ -79,7 +79,7 @@ static const char bc_drvname[] = "baycom_ser_hdx"; static const char bc_drvinfo[] = KERN_INFO "baycom_ser_hdx: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA\n" -KERN_INFO "baycom_ser_hdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n"; +"baycom_ser_hdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n"; /* --------------------------------------------------------------------- */ diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c index c9bfe4eea189..78c088331f57 100644 --- a/drivers/net/natsemi.c +++ b/drivers/net/natsemi.c @@ -130,8 +130,8 @@ static int full_duplex[MAX_UNITS]; static const char version[] __devinitconst = KERN_INFO DRV_NAME " dp8381x driver, version " DRV_VERSION ", " DRV_RELDATE "\n" - KERN_INFO " originally by Donald Becker \n" - KERN_INFO " 2.4.x kernel port by Jeff Garzik, Tjeerd Mulder\n"; + " originally by Donald Becker \n" + " 2.4.x kernel port by Jeff Garzik, Tjeerd Mulder\n"; MODULE_AUTHOR("Donald Becker "); MODULE_DESCRIPTION("National Semiconductor DP8381x series PCI Ethernet driver"); diff --git a/drivers/net/ne.c b/drivers/net/ne.c index 5c3e242428f1..992dbfffdb05 100644 --- a/drivers/net/ne.c +++ b/drivers/net/ne.c @@ -321,7 +321,7 @@ static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr) } if (ei_debug && version_printed++ == 0) - printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2); + printk(KERN_INFO "%s%s", version1, version2); printk(KERN_INFO "NE*000 ethercard probe at %#3lx:", ioaddr); diff --git a/drivers/net/pci-skeleton.c b/drivers/net/pci-skeleton.c index 8c1f6988f398..89f7b2ad5231 100644 --- a/drivers/net/pci-skeleton.c +++ b/drivers/net/pci-skeleton.c @@ -105,7 +105,7 @@ IVc. Errata static char version[] __devinitdata = KERN_INFO NETDRV_DRIVER_LOAD_MSG "\n" -KERN_INFO " Support available from http://foo.com/bar/baz.html\n"; +" Support available from http://foo.com/bar/baz.html\n"; /* define to 1 to enable PIO instead of MMIO */ #undef USE_IO_OPS diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c index f51944b28cfa..06618af1a468 100644 --- a/drivers/net/pcmcia/ibmtr_cs.c +++ b/drivers/net/pcmcia/ibmtr_cs.c @@ -298,14 +298,11 @@ static int __devinit ibmtr_config(struct pcmcia_device *link) strcpy(info->node.dev_name, dev->name); - printk(KERN_INFO "%s: port %#3lx, irq %d,", - dev->name, dev->base_addr, dev->irq); - printk (" mmio %#5lx,", (u_long)ti->mmio); - printk (" sram %#5lx,", (u_long)ti->sram_base << 12); - printk ("\n" KERN_INFO " hwaddr="); - for (i = 0; i < TR_ALEN; i++) - printk("%02X", dev->dev_addr[i]); - printk("\n"); + printk(KERN_INFO + "%s: port %#3lx, irq %d, mmio %#5lx, sram %#5lx, hwaddr=%pM\n", + dev->name, dev->base_addr, dev->irq, + (u_long)ti->mmio, (u_long)(ti->sram_base << 12), + dev->dev_addr); return 0; cs_failed: diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c index 02ef63ed1f99..36de91baf238 100644 --- a/drivers/net/pcmcia/nmclan_cs.c +++ b/drivers/net/pcmcia/nmclan_cs.c @@ -1425,15 +1425,12 @@ static void BuildLAF(int *ladrf, int *adr) ladrf[byte] |= (1 << (hashcode & 7)); #ifdef PCMCIA_DEBUG - if (pc_debug > 2) { - printk(KERN_DEBUG " adr ="); - for (i = 0; i < 6; i++) - printk(" %02X", adr[i]); - printk("\n" KERN_DEBUG " hashcode = %d(decimal), ladrf[0:63]" - " =", hashcode); - for (i = 0; i < 8; i++) - printk(" %02X", ladrf[i]); - printk("\n"); + if (pc_debug > 2) + printk(KERN_DEBUG " adr =%pM\n", adr); + printk(KERN_DEBUG " hashcode = %d(decimal), ladrf[0:63] =", hashcode); + for (i = 0; i < 8; i++) + printk(KERN_CONT " %02X", ladrf[i]); + printk(KERN_CONT "\n"); } #endif } /* BuildLAF */ diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c index 1c35e1d637a0..28368157dac4 100644 --- a/drivers/net/pcnet32.c +++ b/drivers/net/pcnet32.c @@ -485,7 +485,7 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev, &new_ring_dma_addr); if (new_tx_ring == NULL) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR + printk(KERN_ERR "%s: Consistent memory allocation failed.\n", dev->name); return; @@ -496,7 +496,7 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev, GFP_ATOMIC); if (!new_dma_addr_list) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR + printk(KERN_ERR "%s: Memory allocation failed.\n", dev->name); goto free_new_tx_ring; } @@ -505,7 +505,7 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev, GFP_ATOMIC); if (!new_skb_list) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR + printk(KERN_ERR "%s: Memory allocation failed.\n", dev->name); goto free_new_lists; } @@ -563,7 +563,7 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev, &new_ring_dma_addr); if (new_rx_ring == NULL) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR + printk(KERN_ERR "%s: Consistent memory allocation failed.\n", dev->name); return; @@ -574,7 +574,7 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev, GFP_ATOMIC); if (!new_dma_addr_list) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR + printk(KERN_ERR "%s: Memory allocation failed.\n", dev->name); goto free_new_rx_ring; } @@ -583,7 +583,7 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev, GFP_ATOMIC); if (!new_skb_list) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR + printk(KERN_ERR "%s: Memory allocation failed.\n", dev->name); goto free_new_lists; } @@ -1766,38 +1766,38 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) /* Version 0x2623 and 0x2624 */ if (((chip_version + 1) & 0xfffe) == 0x2624) { i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */ - printk("\n" KERN_INFO " tx_start_pt(0x%04x):", i); + printk(KERN_INFO " tx_start_pt(0x%04x):", i); switch (i >> 10) { case 0: - printk(" 20 bytes,"); + printk(KERN_CONT " 20 bytes,"); break; case 1: - printk(" 64 bytes,"); + printk(KERN_CONT " 64 bytes,"); break; case 2: - printk(" 128 bytes,"); + printk(KERN_CONT " 128 bytes,"); break; case 3: - printk("~220 bytes,"); + printk(KERN_CONT "~220 bytes,"); break; } i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */ - printk(" BCR18(%x):", i & 0xffff); + printk(KERN_CONT " BCR18(%x):", i & 0xffff); if (i & (1 << 5)) - printk("BurstWrEn "); + printk(KERN_CONT "BurstWrEn "); if (i & (1 << 6)) - printk("BurstRdEn "); + printk(KERN_CONT "BurstRdEn "); if (i & (1 << 7)) - printk("DWordIO "); + printk(KERN_CONT "DWordIO "); if (i & (1 << 11)) - printk("NoUFlow "); + printk(KERN_CONT "NoUFlow "); i = a->read_bcr(ioaddr, 25); - printk("\n" KERN_INFO " SRAMSIZE=0x%04x,", i << 8); + printk(KERN_INFO " SRAMSIZE=0x%04x,", i << 8); i = a->read_bcr(ioaddr, 26); - printk(" SRAM_BND=0x%04x,", i << 8); + printk(KERN_CONT " SRAM_BND=0x%04x,", i << 8); i = a->read_bcr(ioaddr, 27); if (i & (1 << 14)) - printk("LowLatRx"); + printk(KERN_CONT "LowLatRx"); } } @@ -1996,7 +1996,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name) &lp->tx_ring_dma_addr); if (lp->tx_ring == NULL) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR PFX + printk(KERN_ERR PFX "%s: Consistent memory allocation failed.\n", name); return -ENOMEM; @@ -2008,7 +2008,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name) &lp->rx_ring_dma_addr); if (lp->rx_ring == NULL) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR PFX + printk(KERN_ERR PFX "%s: Consistent memory allocation failed.\n", name); return -ENOMEM; @@ -2018,7 +2018,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name) GFP_ATOMIC); if (!lp->tx_dma_addr) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR PFX + printk(KERN_ERR PFX "%s: Memory allocation failed.\n", name); return -ENOMEM; } @@ -2027,7 +2027,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name) GFP_ATOMIC); if (!lp->rx_dma_addr) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR PFX + printk(KERN_ERR PFX "%s: Memory allocation failed.\n", name); return -ENOMEM; } @@ -2036,7 +2036,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name) GFP_ATOMIC); if (!lp->tx_skbuff) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR PFX + printk(KERN_ERR PFX "%s: Memory allocation failed.\n", name); return -ENOMEM; } @@ -2045,7 +2045,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name) GFP_ATOMIC); if (!lp->rx_skbuff) { if (netif_msg_drv(lp)) - printk("\n" KERN_ERR PFX + printk(KERN_ERR PFX "%s: Memory allocation failed.\n", name); return -ENOMEM; } diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c index 838cce8b8fff..669253c7bd41 100644 --- a/drivers/net/starfire.c +++ b/drivers/net/starfire.c @@ -180,7 +180,7 @@ static int full_duplex[MAX_UNITS] = {0, }; /* These identify the driver base version and may not be removed. */ static const char version[] __devinitconst = KERN_INFO "starfire.c:v1.03 7/26/2000 Written by Donald Becker \n" -KERN_INFO " (unofficial 2.2/2.4 kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n"; +" (unofficial 2.2/2.4 kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n"; MODULE_AUTHOR("Donald Becker "); MODULE_DESCRIPTION("Adaptec Starfire Ethernet driver"); diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c index 545f81b34ad7..d1521c3875b2 100644 --- a/drivers/net/sundance.c +++ b/drivers/net/sundance.c @@ -1698,13 +1698,13 @@ static int netdev_close(struct net_device *dev) #ifdef __i386__ if (netif_msg_hw(np)) { - printk("\n"KERN_DEBUG" Tx ring at %8.8x:\n", + printk(KERN_DEBUG " Tx ring at %8.8x:\n", (int)(np->tx_ring_dma)); for (i = 0; i < TX_RING_SIZE; i++) - printk(" #%d desc. %4.4x %8.8x %8.8x.\n", + printk(KERN_DEBUG " #%d desc. %4.4x %8.8x %8.8x.\n", i, np->tx_ring[i].status, np->tx_ring[i].frag[0].addr, np->tx_ring[i].frag[0].length); - printk("\n"KERN_DEBUG " Rx ring %8.8x:\n", + printk(KERN_DEBUG " Rx ring %8.8x:\n", (int)(np->rx_ring_dma)); for (i = 0; i < /*RX_RING_SIZE*/4 ; i++) { printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x\n", diff --git a/drivers/net/tsi108_eth.c b/drivers/net/tsi108_eth.c index 0f78f99f9b20..7030bd5e9848 100644 --- a/drivers/net/tsi108_eth.c +++ b/drivers/net/tsi108_eth.c @@ -1132,7 +1132,9 @@ static int tsi108_get_mac(struct net_device *dev) } if (!is_valid_ether_addr(dev->dev_addr)) { - printk("KERN_ERR: word1: %08x, word2: %08x\n", word1, word2); + printk(KERN_ERR + "%s: Invalid MAC address. word1: %08x, word2: %08x\n", + dev->name, word1, word2); return -EINVAL; } @@ -1201,8 +1203,8 @@ static void tsi108_set_rx_mode(struct net_device *dev) __set_bit(hash, &data->mc_hash[0]); } else { printk(KERN_ERR - "%s: got multicast address of length %d " - "instead of 6.\n", dev->name, + "%s: got multicast address of length %d instead of 6.\n", + dev->name, mc->dmi_addrlen); } diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c index 81f054dbb88d..ef49744a5085 100644 --- a/drivers/net/tulip/de2104x.c +++ b/drivers/net/tulip/de2104x.c @@ -944,9 +944,10 @@ static void de_set_media (struct de_private *de) macmode &= ~FullDuplex; if (netif_msg_link(de)) { - printk(KERN_INFO "%s: set link %s\n" - KERN_INFO "%s: mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n" - KERN_INFO "%s: set mode 0x%x, set sia 0x%x,0x%x,0x%x\n", + printk(KERN_INFO + "%s: set link %s\n" + "%s: mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n" + "%s: set mode 0x%x, set sia 0x%x,0x%x,0x%x\n", de->dev->name, media_name[media], de->dev->name, dr32(MacMode), dr32(SIAStatus), dr32(CSR13), dr32(CSR14), dr32(CSR15), diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c index 2abb5d3becc6..99a63649f4fc 100644 --- a/drivers/net/tulip/tulip_core.c +++ b/drivers/net/tulip/tulip_core.c @@ -570,16 +570,18 @@ static void tulip_tx_timeout(struct net_device *dev) (unsigned int)tp->rx_ring[i].buffer2, buf[0], buf[1], buf[2]); for (j = 0; buf[j] != 0xee && j < 1600; j++) - if (j < 100) printk(" %2.2x", buf[j]); - printk(" j=%d.\n", j); + if (j < 100) + printk(KERN_CONT " %2.2x", buf[j]); + printk(KERN_CONT " j=%d.\n", j); } printk(KERN_DEBUG " Rx ring %8.8x: ", (int)tp->rx_ring); for (i = 0; i < RX_RING_SIZE; i++) - printk(" %8.8x", (unsigned int)tp->rx_ring[i].status); - printk("\n" KERN_DEBUG " Tx ring %8.8x: ", (int)tp->tx_ring); + printk(KERN_CONT " %8.8x", + (unsigned int)tp->rx_ring[i].status); + printk(KERN_DEBUG " Tx ring %8.8x: ", (int)tp->tx_ring); for (i = 0; i < TX_RING_SIZE; i++) - printk(" %8.8x", (unsigned int)tp->tx_ring[i].status); - printk("\n"); + printk(KERN_CONT " %8.8x", (unsigned int)tp->tx_ring[i].status); + printk(KERN_CONT "\n"); } #endif diff --git a/drivers/net/tulip/winbond-840.c b/drivers/net/tulip/winbond-840.c index 842b1a2c40d4..0f15773dae52 100644 --- a/drivers/net/tulip/winbond-840.c +++ b/drivers/net/tulip/winbond-840.c @@ -142,7 +142,7 @@ static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; static const char version[] __initconst = KERN_INFO DRV_NAME ".c:v" DRV_VERSION " (2.4 port) " DRV_RELDATE " Donald Becker \n" - KERN_INFO " http://www.scyld.com/network/drivers.html\n"; + " http://www.scyld.com/network/drivers.html\n"; MODULE_AUTHOR("Donald Becker "); MODULE_DESCRIPTION("Winbond W89c840 Ethernet driver"); @@ -939,7 +939,7 @@ static void tx_timeout(struct net_device *dev) printk(KERN_DEBUG " Rx ring %p: ", np->rx_ring); for (i = 0; i < RX_RING_SIZE; i++) printk(" %8.8x", (unsigned int)np->rx_ring[i].status); - printk("\n"KERN_DEBUG" Tx ring %p: ", np->tx_ring); + printk(KERN_DEBUG" Tx ring %p: ", np->tx_ring); for (i = 0; i < TX_RING_SIZE; i++) printk(" %8.8x", np->tx_ring[i].status); printk("\n"); @@ -1520,7 +1520,7 @@ static int netdev_close(struct net_device *dev) printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x.\n", i, np->tx_ring[i].length, np->tx_ring[i].status, np->tx_ring[i].buffer1); - printk("\n"KERN_DEBUG " Rx ring %8.8x:\n", + printk(KERN_DEBUG " Rx ring %8.8x:\n", (int)np->rx_ring); for (i = 0; i < RX_RING_SIZE; i++) { printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x\n", diff --git a/drivers/net/wan/hd64570.c b/drivers/net/wan/hd64570.c index 223238de475c..1ea1ef6c3b96 100644 --- a/drivers/net/wan/hd64570.c +++ b/drivers/net/wan/hd64570.c @@ -584,8 +584,9 @@ static void sca_dump_rings(struct net_device *dev) sca_in(DSR_RX(phy_node(port)), card) & DSR_DE ? "" : "in"); for (cnt = 0; cnt < port_to_card(port)->rx_ring_buffers; cnt++) printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat))); + printk(KERN_CONT "\n"); - printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u " + printk(KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u " "last=%u %sactive", sca_inw(get_dmac_tx(port) + CDAL, card), sca_inw(get_dmac_tx(port) + EDAL, card), diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c index 497b003d7239..f099c34a3ae2 100644 --- a/drivers/net/wan/hd64572.c +++ b/drivers/net/wan/hd64572.c @@ -529,8 +529,9 @@ static void sca_dump_rings(struct net_device *dev) sca_in(DSR_RX(port->chan), card) & DSR_DE ? "" : "in"); for (cnt = 0; cnt < port->card->rx_ring_buffers; cnt++) printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat))); + printk(KERN_CONT "\n"); - printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u " + printk(KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u " "last=%u %sactive", sca_inl(get_dmac_tx(port) + CDAL, card), sca_inl(get_dmac_tx(port) + EDAL, card), diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c index 3fb9dbc88a1a..d14e95a08d66 100644 --- a/drivers/net/wan/sbni.c +++ b/drivers/net/wan/sbni.c @@ -326,11 +326,9 @@ sbni_pci_probe( struct net_device *dev ) } if (pci_irq_line <= 0 || pci_irq_line >= nr_irqs) - printk( KERN_WARNING " WARNING: The PCI BIOS assigned " - "this PCI card to IRQ %d, which is unlikely " - "to work!.\n" - KERN_WARNING " You should use the PCI BIOS " - "setup to assign a valid IRQ line.\n", + printk( KERN_WARNING + " WARNING: The PCI BIOS assigned this PCI card to IRQ %d, which is unlikely to work!.\n" + " You should use the PCI BIOS setup to assign a valid IRQ line.\n", pci_irq_line ); /* avoiding re-enable dual adapters */ diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index b10b0383dfa5..698b11b1cadb 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -2427,11 +2427,10 @@ static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len) #ifdef PCMCIA_DEBUG if (pc_debug > 3) { - int i; - printk(KERN_DEBUG "skb->data before untranslate"); - for (i = 0; i < 64; i++) - printk("%02x ", skb->data[i]); - printk("\n" KERN_DEBUG + print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ", + DUMP_PREFIX_NONE, 16, 1, + skb->data, 64, true); + printk(KERN_DEBUG "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n", ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl, psnap->org[0], psnap->org[1], psnap->org[2]); diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c index 6af706408ac0..c6d300666ad8 100644 --- a/drivers/net/wireless/wavelan_cs.c +++ b/drivers/net/wireless/wavelan_cs.c @@ -3556,17 +3556,8 @@ wv_82593_config(struct net_device * dev) cfblk.rcvstop = TRUE; /* Enable Receive Stop Register */ #ifdef DEBUG_I82593_SHOW - { - u_char *c = (u_char *) &cfblk; - int i; - printk(KERN_DEBUG "wavelan_cs: config block:"); - for(i = 0; i < sizeof(struct i82593_conf_block); i++,c++) - { - if((i % 16) == 0) printk("\n" KERN_DEBUG); - printk("%02x ", *c); - } - printk("\n"); - } + print_hex_dump(KERN_DEBUG, "wavelan_cs: config block: ", DUMP_PREFIX_NONE, + 16, 1, &cfblk, sizeof(struct i82593_conf_block), false); #endif /* Copy the config block to the i82593 */ diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c index 3c7a5053f1da..a07580138e81 100644 --- a/drivers/net/yellowfin.c +++ b/drivers/net/yellowfin.c @@ -109,7 +109,7 @@ static int gx_fix; /* These identify the driver base version and may not be removed. */ static const char version[] __devinitconst = KERN_INFO DRV_NAME ".c:v1.05 1/09/2001 Written by Donald Becker \n" - KERN_INFO " (unofficial 2.4.x port, " DRV_VERSION ", " DRV_RELDATE ")\n"; + " (unofficial 2.4.x port, " DRV_VERSION ", " DRV_RELDATE ")\n"; MODULE_AUTHOR("Donald Becker "); MODULE_DESCRIPTION("Packet Engines Yellowfin G-NIC Gigabit Ethernet driver"); @@ -700,12 +700,15 @@ static void yellowfin_tx_timeout(struct net_device *dev) int i; printk(KERN_WARNING " Rx ring %p: ", yp->rx_ring); for (i = 0; i < RX_RING_SIZE; i++) - printk(" %8.8x", yp->rx_ring[i].result_status); - printk("\n"KERN_WARNING" Tx ring %p: ", yp->tx_ring); + printk(KERN_CONT " %8.8x", + yp->rx_ring[i].result_status); + printk(KERN_CONT "\n"); + printk(KERN_WARNING" Tx ring %p: ", yp->tx_ring); for (i = 0; i < TX_RING_SIZE; i++) - printk(" %4.4x /%8.8x", yp->tx_status[i].tx_errs, - yp->tx_ring[i].result_status); - printk("\n"); + printk(KERN_CONT " %4.4x /%8.8x", + yp->tx_status[i].tx_errs, + yp->tx_ring[i].result_status); + printk(KERN_CONT "\n"); } /* If the hardware is found to hang regularly, we will update the code @@ -1216,20 +1219,20 @@ static int yellowfin_close(struct net_device *dev) #if defined(__i386__) if (yellowfin_debug > 2) { - printk("\n"KERN_DEBUG" Tx ring at %8.8llx:\n", + printk(KERN_DEBUG" Tx ring at %8.8llx:\n", (unsigned long long)yp->tx_ring_dma); for (i = 0; i < TX_RING_SIZE*2; i++) - printk(" %c #%d desc. %8.8x %8.8x %8.8x %8.8x.\n", + printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x %8.8x %8.8x.\n", ioread32(ioaddr + TxPtr) == (long)&yp->tx_ring[i] ? '>' : ' ', i, yp->tx_ring[i].dbdma_cmd, yp->tx_ring[i].addr, yp->tx_ring[i].branch_addr, yp->tx_ring[i].result_status); printk(KERN_DEBUG " Tx status %p:\n", yp->tx_status); for (i = 0; i < TX_RING_SIZE; i++) - printk(" #%d status %4.4x %4.4x %4.4x %4.4x.\n", + printk(KERN_DEBUG " #%d status %4.4x %4.4x %4.4x %4.4x.\n", i, yp->tx_status[i].tx_cnt, yp->tx_status[i].tx_errs, yp->tx_status[i].total_tx_cnt, yp->tx_status[i].paused); - printk("\n"KERN_DEBUG " Rx ring %8.8llx:\n", + printk(KERN_DEBUG " Rx ring %8.8llx:\n", (unsigned long long)yp->rx_ring_dma); for (i = 0; i < RX_RING_SIZE; i++) { printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x %8.8x\n", diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c index c709ecc2b7f7..0be1d50645ab 100644 --- a/drivers/parisc/eisa_enumerator.c +++ b/drivers/parisc/eisa_enumerator.c @@ -101,7 +101,7 @@ static int configure_memory(const unsigned char *buf, printk("memory %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end); result = request_resource(mem_parent, res); if (result < 0) { - printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n"); + printk(KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n"); return result; } } @@ -191,7 +191,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent, printk("ioports %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end); result = request_resource(io_parent, res); if (result < 0) { - printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n"); + printk(KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n"); return result; } } @@ -224,7 +224,7 @@ static int configure_port_init(const unsigned char *buf) case HPEE_PORT_INIT_WIDTH_BYTE: s=1; if (c & HPEE_PORT_INIT_MASK) { - printk("\n" KERN_WARNING "port_init: unverified mask attribute\n"); + printk(KERN_WARNING "port_init: unverified mask attribute\n"); outb((inb(get_16(buf+len+1) & get_8(buf+len+3)) | get_8(buf+len+4)), get_16(buf+len+1)); @@ -249,7 +249,7 @@ static int configure_port_init(const unsigned char *buf) case HPEE_PORT_INIT_WIDTH_DWORD: s=4; if (c & HPEE_PORT_INIT_MASK) { - printk("\n" KERN_WARNING "port_init: unverified mask attribute\n"); + printk(KERN_WARNING "port_init: unverified mask attribute\n"); outl((inl(get_16(buf+len+1) & get_32(buf+len+3)) | get_32(buf+len+7)), get_16(buf+len+1)); @@ -259,7 +259,7 @@ static int configure_port_init(const unsigned char *buf) break; default: - printk("\n" KERN_ERR "Invalid port init word %02x\n", c); + printk(KERN_ERR "Invalid port init word %02x\n", c); return 0; } @@ -297,7 +297,7 @@ static int configure_type_string(const unsigned char *buf) /* just skip past the type field */ len = get_8(buf); if (len > 80) { - printk("\n" KERN_ERR "eisa_enumerator: type info field too long (%d, max is 80)\n", len); + printk(KERN_ERR "eisa_enumerator: type info field too long (%d, max is 80)\n", len); } return 1+len; @@ -398,7 +398,7 @@ static int parse_slot_config(int slot, } if (p0 + function_len < pos) { - printk("\n" KERN_ERR "eisa_enumerator: function %d length mis-match " + printk(KERN_ERR "eisa_enumerator: function %d length mis-match " "got %d, expected %d\n", num_func, pos-p0, function_len); res=-1; diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c index 9ad97ea836e8..8eb04230fec7 100644 --- a/drivers/pcmcia/tcic.c +++ b/drivers/pcmcia/tcic.c @@ -472,7 +472,8 @@ static int __init init_tcic(void) init_timer(&poll_timer); /* Build interrupt mask */ - printk(", %d sockets\n" KERN_INFO " irq list (", sockets); + printk(KERN_CONT ", %d sockets\n", sockets); + printk(KERN_INFO " irq list ("); if (irq_list_count == 0) mask = irq_mask; else diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c index 0471f8800483..4240b05aef6d 100644 --- a/drivers/scsi/atari_NCR5380.c +++ b/drivers/scsi/atari_NCR5380.c @@ -2826,8 +2826,7 @@ int NCR5380_abort(Scsi_Cmnd *cmd) */ local_irq_restore(flags); - printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully\n" - KERN_INFO " before abortion\n", HOSTNO); + printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully before abortion\n", HOSTNO); /* Maybe it is sufficient just to release the ST-DMA lock... (if * possible at all) At least, we should check if the lock could be diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c index b12ad7c7c673..18735b39b3d3 100644 --- a/drivers/scsi/mac53c94.c +++ b/drivers/scsi/mac53c94.c @@ -75,8 +75,9 @@ static int mac53c94_queue(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd * int i; printk(KERN_DEBUG "mac53c94_queue %p: command is", cmd); for (i = 0; i < cmd->cmd_len; ++i) - printk(" %.2x", cmd->cmnd[i]); - printk("\n" KERN_DEBUG "use_sg=%d request_bufflen=%d request_buffer=%p\n", + printk(KERN_CONT " %.2x", cmd->cmnd[i]); + printk(KERN_CONT "\n"); + printk(KERN_DEBUG "use_sg=%d request_bufflen=%d request_buffer=%p\n", scsi_sg_count(cmd), scsi_bufflen(cmd), scsi_sglist(cmd)); } #endif diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index ef142fd47a83..4d6f2fe1cfe9 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -619,7 +619,7 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos) if (strcmp(current->comm, cmd) && printk_ratelimit()) { printk(KERN_WARNING "sg_write: data in/out %d/%d bytes for SCSI command 0x%x--" - "guessing data in;\n" KERN_WARNING " " + "guessing data in;\n " "program %s not setting count and/or reply_len properly\n", old_hdr.reply_len - (int)SZ_SG_HEADER, input_size, (unsigned int) cmnd[0], diff --git a/drivers/scsi/sun3_NCR5380.c b/drivers/scsi/sun3_NCR5380.c index bcaba86060ab..75da6e58ce55 100644 --- a/drivers/scsi/sun3_NCR5380.c +++ b/drivers/scsi/sun3_NCR5380.c @@ -2860,8 +2860,7 @@ static int NCR5380_abort(struct scsi_cmnd *cmd) */ local_irq_restore(flags); - printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully\n" - KERN_INFO " before abortion\n", HOSTNO); + printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully before abortion\n", HOSTNO); return SCSI_ABORT_NOT_RUNNING; } diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index 6160e03f410c..e7108e75653d 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -60,11 +60,12 @@ struct serial_private { static void moan_device(const char *str, struct pci_dev *dev) { - printk(KERN_WARNING "%s: %s\n" - KERN_WARNING "Please send the output of lspci -vv, this\n" - KERN_WARNING "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n" - KERN_WARNING "manufacturer and name of serial board or\n" - KERN_WARNING "modem board to rmk+serial@arm.linux.org.uk.\n", + printk(KERN_WARNING + "%s: %s\n" + "Please send the output of lspci -vv, this\n" + "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n" + "manufacturer and name of serial board or\n" + "modem board to rmk+serial@arm.linux.org.uk.\n", pci_name(dev), str, dev->vendor, dev->device, dev->subsystem_vendor, dev->subsystem_device); } diff --git a/drivers/ssb/pcmcia.c b/drivers/ssb/pcmcia.c index fbfadbac67e8..131030f693c7 100644 --- a/drivers/ssb/pcmcia.c +++ b/drivers/ssb/pcmcia.c @@ -583,7 +583,7 @@ static int ssb_pcmcia_sprom_write_all(struct ssb_bus *bus, const u16 *sprom) ssb_printk("."); err = ssb_pcmcia_sprom_write(bus, i, sprom[i]); if (err) { - ssb_printk("\n" KERN_NOTICE PFX + ssb_printk(KERN_NOTICE PFX "Failed to write to SPROM.\n"); failed = 1; break; @@ -591,7 +591,7 @@ static int ssb_pcmcia_sprom_write_all(struct ssb_bus *bus, const u16 *sprom) } err = ssb_pcmcia_sprom_command(bus, SSB_PCMCIA_SPROMCTL_WRITEDIS); if (err) { - ssb_printk("\n" KERN_NOTICE PFX + ssb_printk(KERN_NOTICE PFX "Could not disable SPROM write access.\n"); failed = 1; } diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index ce3f453f02ef..95ccfa0b9fc5 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -648,7 +648,7 @@ void usb_hcd_poll_rh_status(struct usb_hcd *hcd) struct urb *urb; int length; unsigned long flags; - char buffer[4]; /* Any root hubs with > 31 ports? */ + char buffer[6]; /* Any root hubs with > 31 ports? */ if (unlikely(!hcd->rh_registered)) return; diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c index fb8163d181ab..a21efcd10b78 100644 --- a/drivers/video/amba-clcd.c +++ b/drivers/video/amba-clcd.c @@ -226,9 +226,10 @@ static int clcdfb_set_par(struct fb_info *info) clcdfb_enable(fb, regs.cntl); #ifdef DEBUG - printk(KERN_INFO "CLCD: Registers set to\n" - KERN_INFO " %08x %08x %08x %08x\n" - KERN_INFO " %08x %08x %08x %08x\n", + printk(KERN_INFO + "CLCD: Registers set to\n" + " %08x %08x %08x %08x\n" + " %08x %08x %08x %08x\n", readl(fb->regs + CLCD_TIM0), readl(fb->regs + CLCD_TIM1), readl(fb->regs + CLCD_TIM2), readl(fb->regs + CLCD_TIM3), readl(fb->regs + CLCD_UBAS), readl(fb->regs + CLCD_LBAS), diff --git a/drivers/video/matrox/matroxfb_DAC1064.c b/drivers/video/matrox/matroxfb_DAC1064.c index 0ce3b0a89798..a74e5da17aa0 100644 --- a/drivers/video/matrox/matroxfb_DAC1064.c +++ b/drivers/video/matrox/matroxfb_DAC1064.c @@ -454,9 +454,9 @@ static void DAC1064_restore_2(WPMINFO2) { dprintk(KERN_DEBUG "DAC1064regs "); for (i = 0; i < sizeof(MGA1064_DAC_regs); i++) { dprintk("R%02X=%02X ", MGA1064_DAC_regs[i], ACCESS_FBINFO(hw).DACreg[i]); - if ((i & 0x7) == 0x7) dprintk("\n" KERN_DEBUG "continuing... "); + if ((i & 0x7) == 0x7) dprintk(KERN_DEBUG "continuing... "); } - dprintk("\n" KERN_DEBUG "DAC1064clk "); + dprintk(KERN_DEBUG "DAC1064clk "); for (i = 0; i < 6; i++) dprintk("C%02X=%02X ", i, ACCESS_FBINFO(hw).DACclk[i]); dprintk("\n"); diff --git a/drivers/video/matrox/matroxfb_Ti3026.c b/drivers/video/matrox/matroxfb_Ti3026.c index 13524821e242..4e825112a601 100644 --- a/drivers/video/matrox/matroxfb_Ti3026.c +++ b/drivers/video/matrox/matroxfb_Ti3026.c @@ -651,9 +651,9 @@ static void Ti3026_restore(WPMINFO2) { dprintk(KERN_DEBUG "3026DACregs "); for (i = 0; i < 21; i++) { dprintk("R%02X=%02X ", DACseq[i], hw->DACreg[i]); - if ((i & 0x7) == 0x7) dprintk("\n" KERN_DEBUG "continuing... "); + if ((i & 0x7) == 0x7) dprintk(KERN_DEBUG "continuing... "); } - dprintk("\n" KERN_DEBUG "DACclk "); + dprintk(KERN_DEBUG "DACclk "); for (i = 0; i < 6; i++) dprintk("C%02X=%02X ", i, hw->DACclk[i]); dprintk("\n"); diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c index eec9dcb7f599..6120f0c526fe 100644 --- a/drivers/video/stifb.c +++ b/drivers/video/stifb.c @@ -1115,10 +1115,9 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) if the device name contains the string "DX" and tell the user how to reconfigure the card. */ if (strstr(sti->outptr.dev_name, "DX")) { - printk(KERN_WARNING "WARNING: stifb framebuffer driver does not " - "support '%s' in double-buffer mode.\n" - KERN_WARNING "WARNING: Please disable the double-buffer mode " - "in IPL menu (the PARISC-BIOS).\n", + printk(KERN_WARNING +"WARNING: stifb framebuffer driver does not support '%s' in double-buffer mode.\n" +"WARNING: Please disable the double-buffer mode in IPL menu (the PARISC-BIOS).\n", sti->outptr.dev_name); goto out_err0; } diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index a0244740b75a..b47679be118a 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -270,19 +270,21 @@ static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c, D2({ int i=0; struct jffs2_raw_node_ref *this; - printk(KERN_DEBUG "After remove_node_refs_from_ino_list: \n" KERN_DEBUG); + printk(KERN_DEBUG "After remove_node_refs_from_ino_list: \n"); this = ic->nodes; + printk(KERN_DEBUG); while(this) { - printk( "0x%08x(%d)->", ref_offset(this), ref_flags(this)); + printk(KERN_CONT "0x%08x(%d)->", + ref_offset(this), ref_flags(this)); if (++i == 5) { - printk("\n" KERN_DEBUG); + printk(KERN_DEBUG); i=0; } this = this->next_in_ino; } - printk("\n"); + printk(KERN_CONT "\n"); }); switch (ic->class) { diff --git a/kernel/module.c b/kernel/module.c index 38928fcaff2b..0a049837008e 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2451,9 +2451,9 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, return ret; } if (ret > 0) { - printk(KERN_WARNING "%s: '%s'->init suspiciously returned %d, " - "it should follow 0/-E convention\n" - KERN_WARNING "%s: loading module anyway...\n", + printk(KERN_WARNING +"%s: '%s'->init suspiciously returned %d, it should follow 0/-E convention\n" +"%s: loading module anyway...\n", __func__, mod->name, ret, __func__); dump_stack(); diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c index e617acaf10e3..61b8ab39800f 100644 --- a/sound/pci/emu10k1/p16v.c +++ b/sound/pci/emu10k1/p16v.c @@ -644,7 +644,7 @@ int __devinit snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm * int err; int capture=1; - /* snd_printk("KERN_DEBUG snd_p16v_pcm called. device=%d\n", device); */ + /* snd_printk(KERN_DEBUG "snd_p16v_pcm called. device=%d\n", device); */ emu->p16v_device_offset = device; if (rpcm) *rpcm = NULL; diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c index dd1ab6177840..9efd27f6b52f 100644 --- a/sound/usb/usx2y/usbusx2yaudio.c +++ b/sound/usb/usx2y/usbusx2yaudio.c @@ -296,9 +296,10 @@ static void usX2Y_error_urb_status(struct usX2Ydev *usX2Y, static void usX2Y_error_sequence(struct usX2Ydev *usX2Y, struct snd_usX2Y_substream *subs, struct urb *urb) { - snd_printk(KERN_ERR "Sequence Error!(hcd_frame=%i ep=%i%s;wait=%i,frame=%i).\n" - KERN_ERR "Most propably some urb of usb-frame %i is still missing.\n" - KERN_ERR "Cause could be too long delays in usb-hcd interrupt handling.\n", + snd_printk(KERN_ERR +"Sequence Error!(hcd_frame=%i ep=%i%s;wait=%i,frame=%i).\n" +"Most propably some urb of usb-frame %i is still missing.\n" +"Cause could be too long delays in usb-hcd interrupt handling.\n", usb_get_current_frame_number(usX2Y->chip.dev), subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", usX2Y->wait_iso_frame, urb->start_frame, usX2Y->wait_iso_frame); -- cgit v1.2.3-59-g8ed1b From 8aa7e847d834ed937a9ad37a0f2ad5b8584c1ab0 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Thu, 9 Jul 2009 14:52:32 +0200 Subject: Fix congestion_wait() sync/async vs read/write confusion Commit 1faa16d22877f4839bd433547d770c676d1d964c accidentally broke the bdi congestion wait queue logic, causing us to wait on congestion for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead. Signed-off-by: Jens Axboe --- arch/x86/lib/usercopy_32.c | 2 +- drivers/block/pktcdvd.c | 10 ++++++---- drivers/md/dm-crypt.c | 2 +- fs/fat/file.c | 2 +- fs/fuse/dev.c | 8 ++++---- fs/nfs/write.c | 8 +++++--- fs/reiserfs/journal.c | 2 +- fs/xfs/linux-2.6/kmem.c | 4 ++-- fs/xfs/linux-2.6/xfs_buf.c | 2 +- include/linux/backing-dev.h | 6 +++--- include/linux/blkdev.h | 8 ++++---- mm/backing-dev.c | 7 +++---- mm/memcontrol.c | 2 +- mm/page-writeback.c | 8 ++++---- mm/page_alloc.c | 4 ++-- mm/vmscan.c | 8 ++++---- 16 files changed, 43 insertions(+), 40 deletions(-) (limited to 'drivers/md') diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c index 7c8ca91bb9ec..1f118d462acc 100644 --- a/arch/x86/lib/usercopy_32.c +++ b/arch/x86/lib/usercopy_32.c @@ -751,7 +751,7 @@ survive: if (retval == -ENOMEM && is_global_init(current)) { up_read(¤t->mm->mmap_sem); - congestion_wait(WRITE, HZ/50); + congestion_wait(BLK_RW_ASYNC, HZ/50); goto survive; } diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 83650e00632d..99a506f619b7 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -1372,8 +1372,10 @@ try_next_bio: wakeup = (pd->write_congestion_on > 0 && pd->bio_queue_size <= pd->write_congestion_off); spin_unlock(&pd->lock); - if (wakeup) - clear_bdi_congested(&pd->disk->queue->backing_dev_info, WRITE); + if (wakeup) { + clear_bdi_congested(&pd->disk->queue->backing_dev_info, + BLK_RW_ASYNC); + } pkt->sleep_time = max(PACKET_WAIT_TIME, 1); pkt_set_state(pkt, PACKET_WAITING_STATE); @@ -2592,10 +2594,10 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) spin_lock(&pd->lock); if (pd->write_congestion_on > 0 && pd->bio_queue_size >= pd->write_congestion_on) { - set_bdi_congested(&q->backing_dev_info, WRITE); + set_bdi_congested(&q->backing_dev_info, BLK_RW_ASYNC); do { spin_unlock(&pd->lock); - congestion_wait(WRITE, HZ); + congestion_wait(BLK_RW_ASYNC, HZ); spin_lock(&pd->lock); } while(pd->bio_queue_size > pd->write_congestion_off); } diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 9933eb861c71..529e2ba505c3 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -776,7 +776,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io) * But don't wait if split was due to the io size restriction */ if (unlikely(out_of_pages)) - congestion_wait(WRITE, HZ/100); + congestion_wait(BLK_RW_ASYNC, HZ/100); /* * With async crypto it is unsafe to share the crypto context diff --git a/fs/fat/file.c b/fs/fat/file.c index b28ea646ff60..f042b965c95c 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -134,7 +134,7 @@ static int fat_file_release(struct inode *inode, struct file *filp) if ((filp->f_mode & FMODE_WRITE) && MSDOS_SB(inode->i_sb)->options.flush) { fat_flush_inodes(inode->i_sb, inode, NULL); - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); } return 0; } diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index f58ecbc416c8..6484eb75acd6 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -286,8 +286,8 @@ __releases(&fc->lock) } if (fc->num_background == FUSE_CONGESTION_THRESHOLD && fc->connected && fc->bdi_initialized) { - clear_bdi_congested(&fc->bdi, READ); - clear_bdi_congested(&fc->bdi, WRITE); + clear_bdi_congested(&fc->bdi, BLK_RW_SYNC); + clear_bdi_congested(&fc->bdi, BLK_RW_ASYNC); } fc->num_background--; fc->active_background--; @@ -414,8 +414,8 @@ static void fuse_request_send_nowait_locked(struct fuse_conn *fc, fc->blocked = 1; if (fc->num_background == FUSE_CONGESTION_THRESHOLD && fc->bdi_initialized) { - set_bdi_congested(&fc->bdi, READ); - set_bdi_congested(&fc->bdi, WRITE); + set_bdi_congested(&fc->bdi, BLK_RW_SYNC); + set_bdi_congested(&fc->bdi, BLK_RW_ASYNC); } list_add_tail(&req->list, &fc->bg_queue); flush_bg_queue(fc); diff --git a/fs/nfs/write.c b/fs/nfs/write.c index ce728829f79a..0a0a2ff767c3 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -202,8 +202,10 @@ static int nfs_set_page_writeback(struct page *page) struct nfs_server *nfss = NFS_SERVER(inode); if (atomic_long_inc_return(&nfss->writeback) > - NFS_CONGESTION_ON_THRESH) - set_bdi_congested(&nfss->backing_dev_info, WRITE); + NFS_CONGESTION_ON_THRESH) { + set_bdi_congested(&nfss->backing_dev_info, + BLK_RW_ASYNC); + } } return ret; } @@ -215,7 +217,7 @@ static void nfs_end_page_writeback(struct page *page) end_page_writeback(page); if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) - clear_bdi_congested(&nfss->backing_dev_info, WRITE); + clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC); } /* diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 77f5bb746bf0..90622200b39c 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -997,7 +997,7 @@ static int reiserfs_async_progress_wait(struct super_block *s) DEFINE_WAIT(wait); struct reiserfs_journal *j = SB_JOURNAL(s); if (atomic_read(&j->j_async_throttle)) - congestion_wait(WRITE, HZ / 10); + congestion_wait(BLK_RW_ASYNC, HZ / 10); return 0; } diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c index 1cd3b55ee3d2..2d3f90afe5f1 100644 --- a/fs/xfs/linux-2.6/kmem.c +++ b/fs/xfs/linux-2.6/kmem.c @@ -53,7 +53,7 @@ kmem_alloc(size_t size, unsigned int __nocast flags) printk(KERN_ERR "XFS: possible memory allocation " "deadlock in %s (mode:0x%x)\n", __func__, lflags); - congestion_wait(WRITE, HZ/50); + congestion_wait(BLK_RW_ASYNC, HZ/50); } while (1); } @@ -130,7 +130,7 @@ kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags) printk(KERN_ERR "XFS: possible memory allocation " "deadlock in %s (mode:0x%x)\n", __func__, lflags); - congestion_wait(WRITE, HZ/50); + congestion_wait(BLK_RW_ASYNC, HZ/50); } while (1); } diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index 1418b916fc27..0c93c7ef3d18 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -412,7 +412,7 @@ _xfs_buf_lookup_pages( XFS_STATS_INC(xb_page_retries); xfsbufd_wakeup(0, gfp_mask); - congestion_wait(WRITE, HZ/50); + congestion_wait(BLK_RW_ASYNC, HZ/50); goto retry; } diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 0ec2c594868e..3a52a63c1351 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -229,9 +229,9 @@ static inline int bdi_rw_congested(struct backing_dev_info *bdi) (1 << BDI_async_congested)); } -void clear_bdi_congested(struct backing_dev_info *bdi, int rw); -void set_bdi_congested(struct backing_dev_info *bdi, int rw); -long congestion_wait(int rw, long timeout); +void clear_bdi_congested(struct backing_dev_info *bdi, int sync); +void set_bdi_congested(struct backing_dev_info *bdi, int sync); +long congestion_wait(int sync, long timeout); static inline bool bdi_cap_writeback_dirty(struct backing_dev_info *bdi) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 49ae07951d55..bb3d39978701 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -779,18 +779,18 @@ extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t, * congested queues, and wake up anyone who was waiting for requests to be * put back. */ -static inline void blk_clear_queue_congested(struct request_queue *q, int rw) +static inline void blk_clear_queue_congested(struct request_queue *q, int sync) { - clear_bdi_congested(&q->backing_dev_info, rw); + clear_bdi_congested(&q->backing_dev_info, sync); } /* * A queue has just entered congestion. Flag that in the queue's VM-visible * state flags and increment the global gounter of congested queues. */ -static inline void blk_set_queue_congested(struct request_queue *q, int rw) +static inline void blk_set_queue_congested(struct request_queue *q, int sync) { - set_bdi_congested(&q->backing_dev_info, rw); + set_bdi_congested(&q->backing_dev_info, sync); } extern void blk_start_queue(struct request_queue *q); diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 493b468a5035..c86edd244294 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -283,7 +283,6 @@ static wait_queue_head_t congestion_wqh[2] = { __WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[1]) }; - void clear_bdi_congested(struct backing_dev_info *bdi, int sync) { enum bdi_state bit; @@ -308,18 +307,18 @@ EXPORT_SYMBOL(set_bdi_congested); /** * congestion_wait - wait for a backing_dev to become uncongested - * @rw: READ or WRITE + * @sync: SYNC or ASYNC IO * @timeout: timeout in jiffies * * Waits for up to @timeout jiffies for a backing_dev (any backing_dev) to exit * write congestion. If no backing_devs are congested then just wait for the * next write to be completed. */ -long congestion_wait(int rw, long timeout) +long congestion_wait(int sync, long timeout) { long ret; DEFINE_WAIT(wait); - wait_queue_head_t *wqh = &congestion_wqh[rw]; + wait_queue_head_t *wqh = &congestion_wqh[sync]; prepare_to_wait(wqh, &wait, TASK_UNINTERRUPTIBLE); ret = io_schedule_timeout(timeout); diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e2fa20dadf40..e717964cb5a0 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1973,7 +1973,7 @@ try_to_free: if (!progress) { nr_retries--; /* maybe some writeback is necessary */ - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); } } diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 7687879253b9..81627ebcd313 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -575,7 +575,7 @@ static void balance_dirty_pages(struct address_space *mapping) if (pages_written >= write_chunk) break; /* We've done our duty */ - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); } if (bdi_nr_reclaimable + bdi_nr_writeback < bdi_thresh && @@ -669,7 +669,7 @@ void throttle_vm_writeout(gfp_t gfp_mask) if (global_page_state(NR_UNSTABLE_NFS) + global_page_state(NR_WRITEBACK) <= dirty_thresh) break; - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); /* * The caller might hold locks which can prevent IO completion @@ -715,7 +715,7 @@ static void background_writeout(unsigned long _min_pages) if (wbc.nr_to_write > 0 || wbc.pages_skipped > 0) { /* Wrote less than expected */ if (wbc.encountered_congestion || wbc.more_io) - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); else break; } @@ -787,7 +787,7 @@ static void wb_kupdate(unsigned long arg) writeback_inodes(&wbc); if (wbc.nr_to_write > 0) { if (wbc.encountered_congestion || wbc.more_io) - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); else break; /* All the old data is written */ } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index ad7cd1c56b07..a35eeab2724c 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1666,7 +1666,7 @@ __alloc_pages_high_priority(gfp_t gfp_mask, unsigned int order, preferred_zone, migratetype); if (!page && gfp_mask & __GFP_NOFAIL) - congestion_wait(WRITE, HZ/50); + congestion_wait(BLK_RW_ASYNC, HZ/50); } while (!page && (gfp_mask & __GFP_NOFAIL)); return page; @@ -1831,7 +1831,7 @@ rebalance: pages_reclaimed += did_some_progress; if (should_alloc_retry(gfp_mask, order, pages_reclaimed)) { /* Wait for some write requests to complete then retry */ - congestion_wait(WRITE, HZ/50); + congestion_wait(BLK_RW_ASYNC, HZ/50); goto rebalance; } diff --git a/mm/vmscan.c b/mm/vmscan.c index 54155268dfca..dea7abd31098 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1104,7 +1104,7 @@ static unsigned long shrink_inactive_list(unsigned long max_scan, */ if (nr_freed < nr_taken && !current_is_kswapd() && lumpy_reclaim) { - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); /* * The attempt at page out may have made some @@ -1721,7 +1721,7 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist, /* Take a nap, wait for some writeback to complete */ if (sc->nr_scanned && priority < DEF_PRIORITY - 2) - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); } /* top priority shrink_zones still had more to do? don't OOM, then */ if (!sc->all_unreclaimable && scanning_global_lru(sc)) @@ -1960,7 +1960,7 @@ loop_again: * another pass across the zones. */ if (total_scanned && priority < DEF_PRIORITY - 2) - congestion_wait(WRITE, HZ/10); + congestion_wait(BLK_RW_ASYNC, HZ/10); /* * We do this so kswapd doesn't build up large priorities for @@ -2233,7 +2233,7 @@ unsigned long shrink_all_memory(unsigned long nr_pages) goto out; if (sc.nr_scanned && prio < DEF_PRIORITY - 2) - congestion_wait(WRITE, HZ / 10); + congestion_wait(BLK_RW_ASYNC, HZ / 10); } } -- cgit v1.2.3-59-g8ed1b From 69885683d22d8c05910fd808c01fdce1322739b4 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Thu, 23 Jul 2009 20:30:37 +0100 Subject: dm raid1: wake kmirrord when requeueing delayed bios after remote recovery The recent commit 7513c2a761d69d2a93f17146b3563527d3618ba0 (dm raid1: add is_remote_recovering hook for clusters) changed do_writes() to update the ms->writes list but forgot to wake up kmirrord to process it. The rule is that when anything is being added on ms->reads, ms->writes or ms->failures and the list was empty before we must call wakeup_mirrord (for immediate processing) or delayed_wake (for delayed processing). Otherwise the bios could sit on the list indefinitely. Signed-off-by: Mikulas Patocka CC: stable@kernel.org Signed-off-by: Alasdair G Kergon --- drivers/md/dm-raid1.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/md') diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index ce8868c768cc..42a3e4341d60 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -638,6 +638,7 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes) spin_lock_irq(&ms->lock); bio_list_merge(&ms->writes, &requeue); spin_unlock_irq(&ms->lock); + delayed_wake(ms); } /* -- cgit v1.2.3-59-g8ed1b From a732c207d19e899845ae47139708af898daaf9fd Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 23 Jul 2009 20:30:40 +0100 Subject: dm: remove queue next_ordered workaround for barriers This patch removes DM's bio-based vs request-based conditional setting of next_ordered. For bio-based DM the next_ordered check is no longer a concern (as that check is now in the __make_request path). For request-based DM the default of QUEUE_ORDERED_NONE is now appropriate. bio-based DM was changed to work-around the previously misplaced next_ordered check with this commit: 99360b4c18f7675b50d283301d46d755affe75fd request-based DM does not yet support barriers but reacted to the above bio-based DM change with this commit: 5d67aa2366ccb8257d103d0b43df855605c3c086 The above changes are no longer needed given Neil Brown's recent fix to put the next_ordered check in the __make_request path: db64f680ba4b5c56c4be59f0698000df89ff0281 Signed-off-by: Mike Snitzer Cc: Jun'ichi Nomura Cc: NeilBrown Acked-by: Kiyoshi Ueda Acked-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon --- drivers/md/dm-table.c | 5 ----- drivers/md/dm.c | 10 ---------- drivers/md/dm.h | 1 - 3 files changed, 16 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 2cba557d9e61..5d16d06613aa 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -830,11 +830,6 @@ unsigned dm_table_get_type(struct dm_table *t) return t->type; } -bool dm_table_bio_based(struct dm_table *t) -{ - return dm_table_get_type(t) == DM_TYPE_BIO_BASED; -} - bool dm_table_request_based(struct dm_table *t) { return dm_table_get_type(t) == DM_TYPE_REQUEST_BASED; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 9acd54a5cffb..8a311ea0d441 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2203,16 +2203,6 @@ int dm_swap_table(struct mapped_device *md, struct dm_table *table) goto out; } - /* - * It is enought that blk_queue_ordered() is called only once when - * the first bio-based table is bound. - * - * This setting should be moved to alloc_dev() when request-based dm - * supports barrier. - */ - if (!md->map && dm_table_bio_based(table)) - blk_queue_ordered(md->queue, QUEUE_ORDERED_DRAIN, NULL); - __unbind(md); r = __bind(md, table, &limits); diff --git a/drivers/md/dm.h b/drivers/md/dm.h index 23278ae80f08..a7663eba17e2 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -61,7 +61,6 @@ int dm_table_any_congested(struct dm_table *t, int bdi_bits); int dm_table_any_busy_target(struct dm_table *t); int dm_table_set_type(struct dm_table *t); unsigned dm_table_get_type(struct dm_table *t); -bool dm_table_bio_based(struct dm_table *t); bool dm_table_request_based(struct dm_table *t); int dm_table_alloc_md_mempools(struct dm_table *t); void dm_table_free_md_mempools(struct dm_table *t); -- cgit v1.2.3-59-g8ed1b From 5dea271b6d87bd1d79a59c1d5baac2596a841c37 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 23 Jul 2009 20:30:42 +0100 Subject: dm table: pass correct dev area size to device_area_is_valid Incorrect device area lengths are being passed to device_area_is_valid(). The regression appeared in 2.6.31-rc1 through commit 754c5fc7ebb417b23601a6222a6005cc2e7f2913. With the dm-stripe target, the size of the target (ti->len) was used instead of the stripe_width (ti->len/#stripes). An example of a consequent incorrect error message is: device-mapper: table: 254:0: sdb too small for target Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- drivers/md/dm-crypt.c | 2 +- drivers/md/dm-delay.c | 4 ++-- drivers/md/dm-linear.c | 2 +- drivers/md/dm-mpath.c | 2 +- drivers/md/dm-raid1.c | 2 +- drivers/md/dm-stripe.c | 7 ++++--- drivers/md/dm-table.c | 10 +++++----- include/linux/device-mapper.h | 4 ++-- 8 files changed, 17 insertions(+), 16 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 529e2ba505c3..ed1038164019 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -1318,7 +1318,7 @@ static int crypt_iterate_devices(struct dm_target *ti, { struct crypt_config *cc = ti->private; - return fn(ti, cc->dev, cc->start, data); + return fn(ti, cc->dev, cc->start, ti->len, data); } static struct target_type crypt_target = { diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c index 4e5b843cd4d7..ebe7381f47c8 100644 --- a/drivers/md/dm-delay.c +++ b/drivers/md/dm-delay.c @@ -324,12 +324,12 @@ static int delay_iterate_devices(struct dm_target *ti, struct delay_c *dc = ti->private; int ret = 0; - ret = fn(ti, dc->dev_read, dc->start_read, data); + ret = fn(ti, dc->dev_read, dc->start_read, ti->len, data); if (ret) goto out; if (dc->dev_write) - ret = fn(ti, dc->dev_write, dc->start_write, data); + ret = fn(ti, dc->dev_write, dc->start_write, ti->len, data); out: return ret; diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c index 9184b6deb868..82f7d6e6b1ea 100644 --- a/drivers/md/dm-linear.c +++ b/drivers/md/dm-linear.c @@ -139,7 +139,7 @@ static int linear_iterate_devices(struct dm_target *ti, { struct linear_c *lc = ti->private; - return fn(ti, lc->dev, lc->start, data); + return fn(ti, lc->dev, lc->start, ti->len, data); } static struct target_type linear_target = { diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index c70604a20897..6f0d90d4a541 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1453,7 +1453,7 @@ static int multipath_iterate_devices(struct dm_target *ti, list_for_each_entry(pg, &m->priority_groups, list) { list_for_each_entry(p, &pg->pgpaths, list) { - ret = fn(ti, p->path.dev, ti->begin, data); + ret = fn(ti, p->path.dev, ti->begin, ti->len, data); if (ret) goto out; } diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 42a3e4341d60..9726577cde49 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -1293,7 +1293,7 @@ static int mirror_iterate_devices(struct dm_target *ti, for (i = 0; !ret && i < ms->nr_mirrors; i++) ret = fn(ti, ms->mirror[i].dev, - ms->mirror[i].offset, data); + ms->mirror[i].offset, ti->len, data); return ret; } diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index b240e85ae39a..4e0e5937e42a 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -320,10 +320,11 @@ static int stripe_iterate_devices(struct dm_target *ti, int ret = 0; unsigned i = 0; - do + do { ret = fn(ti, sc->stripe[i].dev, - sc->stripe[i].physical_start, data); - while (!ret && ++i < sc->stripes); + sc->stripe[i].physical_start, + sc->stripe_width, data); + } while (!ret && ++i < sc->stripes); return ret; } diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 5d16d06613aa..d952b3441913 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -346,7 +346,7 @@ static void close_dev(struct dm_dev_internal *d, struct mapped_device *md) * If possible, this checks an area of a destination device is valid. */ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev, - sector_t start, void *data) + sector_t start, sector_t len, void *data) { struct queue_limits *limits = data; struct block_device *bdev = dev->bdev; @@ -359,7 +359,7 @@ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev, if (!dev_size) return 1; - if ((start >= dev_size) || (start + ti->len > dev_size)) { + if ((start >= dev_size) || (start + len > dev_size)) { DMWARN("%s: %s too small for target", dm_device_name(ti->table->md), bdevname(bdev, b)); return 0; @@ -377,11 +377,11 @@ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev, return 0; } - if (ti->len & (logical_block_size_sectors - 1)) { + if (len & (logical_block_size_sectors - 1)) { DMWARN("%s: len=%llu not aligned to h/w " "logical block size %hu of %s", dm_device_name(ti->table->md), - (unsigned long long)ti->len, + (unsigned long long)len, limits->logical_block_size, bdevname(bdev, b)); return 0; } @@ -482,7 +482,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti, #define min_not_zero(l, r) (l == 0) ? r : ((r == 0) ? l : min(l, r)) int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev, - sector_t start, void *data) + sector_t start, sector_t len, void *data) { struct queue_limits *limits = data; struct block_device *bdev = dev->bdev; diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 0d6310657f32..655e7721580a 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -84,7 +84,7 @@ typedef int (*dm_merge_fn) (struct dm_target *ti, struct bvec_merge_data *bvm, typedef int (*iterate_devices_callout_fn) (struct dm_target *ti, struct dm_dev *dev, - sector_t physical_start, + sector_t start, sector_t len, void *data); typedef int (*dm_iterate_devices_fn) (struct dm_target *ti, @@ -104,7 +104,7 @@ void dm_error(const char *message); * Combine device limits. */ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev, - sector_t start, void *data); + sector_t start, sector_t len, void *data); struct dm_dev { struct block_device *bdev; -- cgit v1.2.3-59-g8ed1b From 95fc17aac45300f45968aacd97a536ddd8db8101 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 31 Jul 2009 12:39:15 +1000 Subject: md/raid6: release spare page at ->stop() Add missing call to safe_put_page from stop() by unifying open coded raid5_conf_t de-allocation under free_conf(). Cc: Signed-off-by: Dan Williams Signed-off-by: NeilBrown --- drivers/md/raid5.c | 26 ++++++++++++-------------- 1 file changed, 12 insertions(+), 14 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 37835538b58e..39374230a463 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4316,6 +4316,15 @@ raid5_size(mddev_t *mddev, sector_t sectors, int raid_disks) return sectors * (raid_disks - conf->max_degraded); } +static void free_conf(raid5_conf_t *conf) +{ + shrink_stripes(conf); + safe_put_page(conf->spare_page); + kfree(conf->disks); + kfree(conf->stripe_hashtbl); + kfree(conf); +} + static raid5_conf_t *setup_conf(mddev_t *mddev) { raid5_conf_t *conf; @@ -4447,11 +4456,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev) abort: if (conf) { - shrink_stripes(conf); - safe_put_page(conf->spare_page); - kfree(conf->disks); - kfree(conf->stripe_hashtbl); - kfree(conf); + free_conf(conf); return ERR_PTR(-EIO); } else return ERR_PTR(-ENOMEM); @@ -4629,12 +4634,8 @@ abort: md_unregister_thread(mddev->thread); mddev->thread = NULL; if (conf) { - shrink_stripes(conf); print_raid5_conf(conf); - safe_put_page(conf->spare_page); - kfree(conf->disks); - kfree(conf->stripe_hashtbl); - kfree(conf); + free_conf(conf); } mddev->private = NULL; printk(KERN_ALERT "raid5: failed to run raid set %s\n", mdname(mddev)); @@ -4649,13 +4650,10 @@ static int stop(mddev_t *mddev) md_unregister_thread(mddev->thread); mddev->thread = NULL; - shrink_stripes(conf); - kfree(conf->stripe_hashtbl); mddev->queue->backing_dev_info.congested_fn = NULL; blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/ sysfs_remove_group(&mddev->kobj, &raid5_attrs_group); - kfree(conf->disks); - kfree(conf); + free_conf(conf); mddev->private = NULL; return 0; } -- cgit v1.2.3-59-g8ed1b From ac5e7113e74872928844d00085bd47c988f12728 Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Mon, 3 Aug 2009 10:59:47 +1000 Subject: md: Push down data integrity code to personalities. This patch replaces md_integrity_check() by two new public functions: md_integrity_register() and md_integrity_add_rdev() which are both personality-independent. md_integrity_register() is called from the ->run and ->hot_remove methods of all personalities that support data integrity. The function iterates over the component devices of the array and determines if all active devices are integrity capable and if their profiles match. If this is the case, the common profile is registered for the mddev via blk_integrity_register(). The second new function, md_integrity_add_rdev() is called from the ->hot_add_disk methods, i.e. whenever a new device is being added to a raid array. If the new device does not support data integrity, or has a profile different from the one already registered, data integrity for the mddev is disabled. For raid0 and linear, only the call to md_integrity_register() from the ->run method is necessary. Signed-off-by: Andre Noll Signed-off-by: NeilBrown --- drivers/md/linear.c | 1 + drivers/md/md.c | 94 ++++++++++++++++++++++++++++++++++---------------- drivers/md/md.h | 2 ++ drivers/md/multipath.c | 5 ++- drivers/md/raid0.c | 1 + drivers/md/raid1.c | 6 ++-- drivers/md/raid10.c | 4 +++ 7 files changed, 80 insertions(+), 33 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 5810fa906af0..54c8677f1e59 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -220,6 +220,7 @@ static int linear_run (mddev_t *mddev) mddev->queue->unplug_fn = linear_unplug; mddev->queue->backing_dev_info.congested_fn = linear_congested; mddev->queue->backing_dev_info.congested_data = mddev; + md_integrity_register(mddev); return 0; } diff --git a/drivers/md/md.c b/drivers/md/md.c index d4351ff0849f..180949e94a7b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1487,37 +1487,76 @@ static int match_mddev_units(mddev_t *mddev1, mddev_t *mddev2) static LIST_HEAD(pending_raid_disks); -static void md_integrity_check(mdk_rdev_t *rdev, mddev_t *mddev) +/* + * Try to register data integrity profile for an mddev + * + * This is called when an array is started and after a disk has been kicked + * from the array. It only succeeds if all working and active component devices + * are integrity capable with matching profiles. + */ +int md_integrity_register(mddev_t *mddev) +{ + mdk_rdev_t *rdev, *reference = NULL; + + if (list_empty(&mddev->disks)) + return 0; /* nothing to do */ + if (blk_get_integrity(mddev->gendisk)) + return 0; /* already registered */ + list_for_each_entry(rdev, &mddev->disks, same_set) { + /* skip spares and non-functional disks */ + if (test_bit(Faulty, &rdev->flags)) + continue; + if (rdev->raid_disk < 0) + continue; + /* + * If at least one rdev is not integrity capable, we can not + * enable data integrity for the md device. + */ + if (!bdev_get_integrity(rdev->bdev)) + return -EINVAL; + if (!reference) { + /* Use the first rdev as the reference */ + reference = rdev; + continue; + } + /* does this rdev's profile match the reference profile? */ + if (blk_integrity_compare(reference->bdev->bd_disk, + rdev->bdev->bd_disk) < 0) + return -EINVAL; + } + /* + * All component devices are integrity capable and have matching + * profiles, register the common profile for the md device. + */ + if (blk_integrity_register(mddev->gendisk, + bdev_get_integrity(reference->bdev)) != 0) { + printk(KERN_ERR "md: failed to register integrity for %s\n", + mdname(mddev)); + return -EINVAL; + } + printk(KERN_NOTICE "md: data integrity on %s enabled\n", + mdname(mddev)); + return 0; +} +EXPORT_SYMBOL(md_integrity_register); + +/* Disable data integrity if non-capable/non-matching disk is being added */ +void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev) { - struct mdk_personality *pers = mddev->pers; - struct gendisk *disk = mddev->gendisk; struct blk_integrity *bi_rdev = bdev_get_integrity(rdev->bdev); - struct blk_integrity *bi_mddev = blk_get_integrity(disk); + struct blk_integrity *bi_mddev = blk_get_integrity(mddev->gendisk); - /* Data integrity passthrough not supported on RAID 4, 5 and 6 */ - if (pers && pers->level >= 4 && pers->level <= 6) + if (!bi_mddev) /* nothing to do */ return; - - /* If rdev is integrity capable, register profile for mddev */ - if (!bi_mddev && bi_rdev) { - if (blk_integrity_register(disk, bi_rdev)) - printk(KERN_ERR "%s: %s Could not register integrity!\n", - __func__, disk->disk_name); - else - printk(KERN_NOTICE "Enabling data integrity on %s\n", - disk->disk_name); + if (rdev->raid_disk < 0) /* skip spares */ return; - } - - /* Check that mddev and rdev have matching profiles */ - if (blk_integrity_compare(disk, rdev->bdev->bd_disk) < 0) { - printk(KERN_ERR "%s: %s/%s integrity mismatch!\n", __func__, - disk->disk_name, rdev->bdev->bd_disk->disk_name); - printk(KERN_NOTICE "Disabling data integrity on %s\n", - disk->disk_name); - blk_integrity_unregister(disk); - } + if (bi_rdev && blk_integrity_compare(mddev->gendisk, + rdev->bdev->bd_disk) >= 0) + return; + printk(KERN_NOTICE "disabling data integrity on %s\n", mdname(mddev)); + blk_integrity_unregister(mddev->gendisk); } +EXPORT_SYMBOL(md_integrity_add_rdev); static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev) { @@ -1591,7 +1630,6 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev) /* May as well allow recovery to be retried once */ mddev->recovery_disabled = 0; - md_integrity_check(rdev, mddev); return 0; fail: @@ -4048,10 +4086,6 @@ static int do_md_run(mddev_t * mddev) } strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel)); - if (pers->level >= 4 && pers->level <= 6) - /* Cannot support integrity (yet) */ - blk_integrity_unregister(mddev->gendisk); - if (mddev->reshape_position != MaxSector && pers->start_reshape == NULL) { /* This personality cannot handle reshaping... */ diff --git a/drivers/md/md.h b/drivers/md/md.h index 9430a110db93..78f03168baf9 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -431,5 +431,7 @@ extern int md_allow_write(mddev_t *mddev); extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev); extern void md_set_array_sectors(mddev_t *mddev, sector_t array_sectors); extern int md_check_no_bitmap(mddev_t *mddev); +extern int md_integrity_register(mddev_t *mddev); +void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev); #endif /* _MD_MD_H */ diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 237fe3fd235c..7140909f6662 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -313,6 +313,7 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) set_bit(In_sync, &rdev->flags); rcu_assign_pointer(p->rdev, rdev); err = 0; + md_integrity_add_rdev(rdev, mddev); break; } @@ -345,7 +346,9 @@ static int multipath_remove_disk(mddev_t *mddev, int number) /* lost the race, try later */ err = -EBUSY; p->rdev = rdev; + goto abort; } + md_integrity_register(mddev); } abort: @@ -519,7 +522,7 @@ static int multipath_run (mddev_t *mddev) mddev->queue->unplug_fn = multipath_unplug; mddev->queue->backing_dev_info.congested_fn = multipath_congested; mddev->queue->backing_dev_info.congested_data = mddev; - + md_integrity_register(mddev); return 0; out_free_conf: diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 335f490dcad6..898e2bdfee47 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -351,6 +351,7 @@ static int raid0_run(mddev_t *mddev) blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec); dump_zones(mddev); + md_integrity_register(mddev); return 0; } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 0569efba0c02..67e794d0097f 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1144,7 +1144,7 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) rcu_assign_pointer(p->rdev, rdev); break; } - + md_integrity_add_rdev(rdev, mddev); print_conf(conf); return err; } @@ -1178,7 +1178,9 @@ static int raid1_remove_disk(mddev_t *mddev, int number) /* lost the race, try later */ err = -EBUSY; p->rdev = rdev; + goto abort; } + md_integrity_register(mddev); } abort: @@ -2067,7 +2069,7 @@ static int run(mddev_t *mddev) mddev->queue->unplug_fn = raid1_unplug; mddev->queue->backing_dev_info.congested_fn = raid1_congested; mddev->queue->backing_dev_info.congested_data = mddev; - + md_integrity_register(mddev); return 0; out_no_mem: diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 7298a5e5a183..3d9020cf6f6e 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1170,6 +1170,7 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) break; } + md_integrity_add_rdev(rdev, mddev); print_conf(conf); return err; } @@ -1203,7 +1204,9 @@ static int raid10_remove_disk(mddev_t *mddev, int number) /* lost the race, try later */ err = -EBUSY; p->rdev = rdev; + goto abort; } + md_integrity_register(mddev); } abort: @@ -2225,6 +2228,7 @@ static int run(mddev_t *mddev) if (conf->near_copies < mddev->raid_disks) blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec); + md_integrity_register(mddev); return 0; out_free_conf: -- cgit v1.2.3-59-g8ed1b From 3a981b03f38dc3b8a69b77cbc679e66c1318a44a Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:55 +1000 Subject: md: when a level change reduces the number of devices, remove the excess. When an array is changed from RAID6 to RAID5, fewer drives are needed. So any device that is made superfluous by the level conversion must be marked as not-active. For the RAID6->RAID5 conversion, this will be a drive which only has 'Q' blocks on it. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/md.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 180949e94a7b..c194955aecae 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2695,6 +2695,7 @@ level_store(mddev_t *mddev, const char *buf, size_t len) ssize_t rv = len; struct mdk_personality *pers; void *priv; + mdk_rdev_t *rdev; if (mddev->pers == NULL) { if (len == 0) @@ -2774,6 +2775,12 @@ level_store(mddev_t *mddev, const char *buf, size_t len) mddev_suspend(mddev); mddev->pers->stop(mddev); module_put(mddev->pers->owner); + /* Invalidate devices that are now superfluous */ + list_for_each_entry(rdev, &mddev->disks, same_set) + if (rdev->raid_disk >= mddev->raid_disks) { + rdev->raid_disk = -1; + clear_bit(In_sync, &rdev->flags); + } mddev->pers = pers; mddev->private = priv; strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel)); -- cgit v1.2.3-59-g8ed1b From 3673f305faf1bc66ead751344f8262ace851ff44 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:56 +1000 Subject: md: avoid array overflow with bad v1.x metadata We trust the 'desc_nr' field in v1.x metadata enough to use it as an index in an array. This isn't really safe. So range-check the value first. Signed-off-by: NeilBrown --- drivers/md/md.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index c194955aecae..249b2896d4ea 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1308,7 +1308,12 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev) } if (mddev->level != LEVEL_MULTIPATH) { int role; - role = le16_to_cpu(sb->dev_roles[rdev->desc_nr]); + if (rdev->desc_nr < 0 || + rdev->desc_nr >= le32_to_cpu(sb->max_dev)) { + role = 0xffff; + rdev->desc_nr = -1; + } else + role = le16_to_cpu(sb->dev_roles[rdev->desc_nr]); switch(role) { case 0xffff: /* spare */ break; -- cgit v1.2.3-59-g8ed1b From 70471dafe3390243c598a3165dfb86b8b8b3f4fe Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:57 +1000 Subject: md: Handle growth of v1.x metadata correctly. The v1.x metadata does not have a fixed size and can grow when devices are added. If it grows enough to require an extra sector of storage, we need to update the 'sb_size' to match. Without this, md can write out an incomplete superblock with a bad checksum, which will be rejected when trying to re-assemble the array. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/md.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 249b2896d4ea..52c988b072d0 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1399,8 +1399,14 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev) if (rdev2->desc_nr+1 > max_dev) max_dev = rdev2->desc_nr+1; - if (max_dev > le32_to_cpu(sb->max_dev)) + if (max_dev > le32_to_cpu(sb->max_dev)) { + int bmask; sb->max_dev = cpu_to_le32(max_dev); + rdev->sb_size = max_dev * 2 + 256; + bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1; + if (rdev->sb_size & bmask) + rdev->sb_size = (rdev->sb_size | bmask) + 1; + } for (i=0; idev_roles[i] = cpu_to_le16(0xfffe); -- cgit v1.2.3-59-g8ed1b From e516402c0d4fc02be4af9fa8c18954d4f9deb44e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:57 +1000 Subject: md/raid5: set reshape_position correctly when reshape starts. As the internal reshape_progress counter is the main driver for reshape, the fact that reshape_position sometimes starts with the wrong value has minimal effect. It is visible in sysfs and that is all. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 39374230a463..659151e5eda4 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5000,7 +5000,7 @@ static int raid5_start_reshape(mddev_t *mddev) spin_unlock_irqrestore(&conf->device_lock, flags); } mddev->raid_disks = conf->raid_disks; - mddev->reshape_position = 0; + mddev->reshape_position = conf->reshape_progress; set_bit(MD_CHANGE_DEVS, &mddev->flags); clear_bit(MD_RECOVERY_SYNC, &mddev->recovery); -- cgit v1.2.3-59-g8ed1b From 64bd660b51b2da92e99a5e97349f6558349f11c5 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:58 +1000 Subject: md: allow raid5_quiesce to work properly when reshape is happening. The ->quiesce method is not supposed to stop resync/recovery/reshape, just normal IO. But in raid5 we don't have a way to know which stripes are being used for normal IO and which for resync etc, so we need to wait for all stripes to be idle to be sure that all writes have completed. However reshape keeps at least some stripe busy for an extended period of time, so a call to raid5_quiesce can block for several seconds needlessly. So arrange for reshape etc to pause briefly while raid5_quiesce is trying to quiesce the array so that the active_stripes count can drop to zero. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 659151e5eda4..2dc35b4c20ac 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3999,6 +3999,9 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski return 0; } + /* Allow raid5_quiesce to complete */ + wait_event(conf->wait_for_overlap, conf->quiesce != 2); + if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) return reshape_request(mddev, sector_nr, skipped); @@ -5104,12 +5107,18 @@ static void raid5_quiesce(mddev_t *mddev, int state) case 1: /* stop all writes */ spin_lock_irq(&conf->device_lock); - conf->quiesce = 1; + /* '2' tells resync/reshape to pause so that all + * active stripes can drain + */ + conf->quiesce = 2; wait_event_lock_irq(conf->wait_for_stripe, atomic_read(&conf->active_stripes) == 0 && atomic_read(&conf->active_aligned_reads) == 0, conf->device_lock, /* nothing */); + conf->quiesce = 1; spin_unlock_irq(&conf->device_lock); + /* allow reshape to continue */ + wake_up(&conf->wait_for_overlap); break; case 0: /* re-enable writes */ -- cgit v1.2.3-59-g8ed1b From 449aad3e25358812c43afc60918c5ad3819488e7 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:58 +1000 Subject: md: Use revalidate_disk to effect changes in size of device. As revalidate_disk calls check_disk_size_change, it will cause any capacity change of a gendisk to be propagated to the blockdev inode. So use that instead of mucking about with locks and i_size_write. Also add a call to revalidate_disk in do_md_run and a few other places where the gendisk capacity is changed. Signed-off-by: NeilBrown --- drivers/md/linear.c | 1 + drivers/md/md.c | 28 +++++----------------------- drivers/md/raid1.c | 1 + drivers/md/raid5.c | 12 ++---------- 4 files changed, 9 insertions(+), 33 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 54c8677f1e59..5fe39c2a3d2b 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -257,6 +257,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev) rcu_assign_pointer(mddev->private, newconf); md_set_array_sectors(mddev, linear_size(mddev, 0, 0)); set_capacity(mddev->gendisk, mddev->array_sectors); + revalidate_disk(mddev->gendisk); call_rcu(&oldconf->rcu, free_conf); return 0; } diff --git a/drivers/md/md.c b/drivers/md/md.c index 52c988b072d0..5b98bea4ff9b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3741,17 +3741,8 @@ array_size_store(mddev_t *mddev, const char *buf, size_t len) mddev->array_sectors = sectors; set_capacity(mddev->gendisk, mddev->array_sectors); - if (mddev->pers) { - struct block_device *bdev = bdget_disk(mddev->gendisk, 0); - - if (bdev) { - mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, - (loff_t)mddev->array_sectors << 9); - mutex_unlock(&bdev->bd_inode->i_mutex); - bdput(bdev); - } - } + if (mddev->pers) + revalidate_disk(mddev->gendisk); return len; } @@ -4241,6 +4232,7 @@ static int do_md_run(mddev_t * mddev) md_wakeup_thread(mddev->thread); md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */ + revalidate_disk(mddev->gendisk); mddev->changed = 1; md_new_event(mddev); sysfs_notify_dirent(mddev->sysfs_state); @@ -5139,18 +5131,8 @@ static int update_size(mddev_t *mddev, sector_t num_sectors) return -ENOSPC; } rv = mddev->pers->resize(mddev, num_sectors); - if (!rv) { - struct block_device *bdev; - - bdev = bdget_disk(mddev->gendisk, 0); - if (bdev) { - mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, - (loff_t)mddev->array_sectors << 9); - mutex_unlock(&bdev->bd_inode->i_mutex); - bdput(bdev); - } - } + if (!rv) + revalidate_disk(mddev->gendisk); return rv; } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 67e794d0097f..8726fd7ebce5 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2134,6 +2134,7 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors) return -EINVAL; set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; + revalidate_disk(mddev->gendisk); if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) { mddev->recovery_cp = mddev->dev_sectors; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2dc35b4c20ac..2b521ee67dfa 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4858,6 +4858,7 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors) return -EINVAL; set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; + revalidate_disk(mddev->gendisk); if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) { mddev->recovery_cp = mddev->dev_sectors; set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); @@ -5058,7 +5059,6 @@ static void end_reshape(raid5_conf_t *conf) */ static void raid5_finish_reshape(mddev_t *mddev) { - struct block_device *bdev; raid5_conf_t *conf = mddev->private; if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) { @@ -5067,15 +5067,7 @@ static void raid5_finish_reshape(mddev_t *mddev) md_set_array_sectors(mddev, raid5_size(mddev, 0, 0)); set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; - - bdev = bdget_disk(mddev->gendisk, 0); - if (bdev) { - mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, - (loff_t)mddev->array_sectors << 9); - mutex_unlock(&bdev->bd_inode->i_mutex); - bdput(bdev); - } + revalidate_disk(mddev->gendisk); } else { int d; mddev->degraded = conf->raid_disks; -- cgit v1.2.3-59-g8ed1b From c8c00a6915a2e3d10416e8bdd3138429beb96210 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 10 Aug 2009 12:50:52 +1000 Subject: Remove deadlock potential in md_open A recent commit: commit 449aad3e25358812c43afc60918c5ad3819488e7 introduced the possibility of an A-B/B-A deadlock between bd_mutex and reconfig_mutex. __blkdev_get holds bd_mutex while calling md_open which takes reconfig_mutex, do_md_run is always called with reconfig_mutex held, and it now takes bd_mutex in the call the revalidate_disk. This potential deadlock was not caught by lockdep due to the use of mutex_lock_interruptible_nexted which was introduced by commit d63a5a74dee87883fda6b7d170244acaac5b05e8 do avoid a warning of an impossible deadlock. It is quite possible to split reconfig_mutex in to two locks. One protects the array data structures while it is being reconfigured, the other ensures that an array is never even partially open while it is being deactivated. In particular, the second lock prevents an open from completing between the time when do_md_stop checks if there are any active opens, and the time when the array is either set read-only, or when ->pers is set to NULL. So we can be certain that no IO is in flight as the array is being destroyed. So create a new lock, open_mutex, just to ensure exclusion between 'open' and 'stop'. This avoids the deadlock and also avoids the lockdep warning mentioned in commit d63a5a74d Reported-by: "Mike Snitzer" Reported-by: "H. Peter Anvin" Signed-off-by: NeilBrown --- drivers/md/md.c | 18 ++++++++++-------- drivers/md/md.h | 10 ++++++++++ 2 files changed, 20 insertions(+), 8 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 5b98bea4ff9b..5614500092e3 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -359,6 +359,7 @@ static mddev_t * mddev_find(dev_t unit) else new->md_minor = MINOR(unit) >> MdpMinorShift; + mutex_init(&new->open_mutex); mutex_init(&new->reconfig_mutex); INIT_LIST_HEAD(&new->disks); INIT_LIST_HEAD(&new->all_mddevs); @@ -4304,12 +4305,11 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) struct gendisk *disk = mddev->gendisk; mdk_rdev_t *rdev; + mutex_lock(&mddev->open_mutex); if (atomic_read(&mddev->openers) > is_open) { printk("md: %s still in use.\n",mdname(mddev)); - return -EBUSY; - } - - if (mddev->pers) { + err = -EBUSY; + } else if (mddev->pers) { if (mddev->sync_thread) { set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); @@ -4367,7 +4367,10 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) set_disk_ro(disk, 1); clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); } - +out: + mutex_unlock(&mddev->open_mutex); + if (err) + return err; /* * Free resources if final stop */ @@ -4433,7 +4436,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) blk_integrity_unregister(disk); md_new_event(mddev); sysfs_notify_dirent(mddev->sysfs_state); -out: return err; } @@ -5518,12 +5520,12 @@ static int md_open(struct block_device *bdev, fmode_t mode) } BUG_ON(mddev != bdev->bd_disk->private_data); - if ((err = mutex_lock_interruptible_nested(&mddev->reconfig_mutex, 1))) + if ((err = mutex_lock_interruptible(&mddev->open_mutex))) goto out; err = 0; atomic_inc(&mddev->openers); - mddev_unlock(mddev); + mutex_unlock(&mddev->open_mutex); check_disk_change(bdev); out: diff --git a/drivers/md/md.h b/drivers/md/md.h index 78f03168baf9..f8fc188bc762 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -223,6 +223,16 @@ struct mddev_s * so we don't loop trying */ int in_sync; /* know to not need resync */ + /* 'open_mutex' avoids races between 'md_open' and 'do_md_stop', so + * that we are never stopping an array while it is open. + * 'reconfig_mutex' protects all other reconfiguration. + * These locks are separate due to conflicting interactions + * with bdev->bd_mutex. + * Lock ordering is: + * reconfig_mutex -> bd_mutex : e.g. do_md_run -> revalidate_disk + * bd_mutex -> open_mutex: e.g. __blkdev_get -> md_open + */ + struct mutex open_mutex; struct mutex reconfig_mutex; atomic_t active; /* general refcount */ atomic_t openers; /* number of active opens */ -- cgit v1.2.3-59-g8ed1b From 51d5668cb2e3fd1827a55184e48606fff054c5be Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 09:54:02 +1000 Subject: md: never advance 'events' counter by more than 1. When assembling arrays, md allows two devices to have different event counts as long as the difference is only '1'. This is to cope with a system failure between updating the metadata on two difference devices. However there are currently times when we update the event count by 2. This was done to keep the event count even when the array is clean and odd when it is dirty, which allows us to avoid writing common update to spare devices and so allow those spares to go to sleep. This is bad for the above reason. So change it to never increase by two. This means that the alignment between 'odd/even' and 'clean/dirty' might take a little longer to attain, but that is only a small cost. The spares will get a few more updates but that will still be spared (;-) most updates and can still go to sleep. Prior to this patch there was a small chance that after a crash an array would fail to assemble due to the overly large event count mismatch. Signed-off-by: NeilBrown --- drivers/md/md.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 5614500092e3..d18805fea111 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1975,17 +1975,14 @@ repeat: /* otherwise we have to go forward and ... */ mddev->events ++; if (!mddev->in_sync || mddev->recovery_cp != MaxSector) { /* not clean */ - /* .. if the array isn't clean, insist on an odd 'events' */ - if ((mddev->events&1)==0) { - mddev->events++; + /* .. if the array isn't clean, an 'even' event must also go + * to spares. */ + if ((mddev->events&1)==0) nospares = 0; - } } else { - /* otherwise insist on an even 'events' (for clean states) */ - if ((mddev->events&1)) { - mddev->events++; + /* otherwise an 'odd' event must go to spares */ + if ((mddev->events&1)) nospares = 0; - } } } -- cgit v1.2.3-59-g8ed1b From 67ac6011db5d2b0c853d573ff474b25c85dfb644 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:06:24 +1000 Subject: md/raid5: allow new reshape modes to be restarted in the middle. md/raid5 doesn't allow a reshape to restart if it involves writing over the same part of disk that it would be reading from. This happens at the beginning of a reshape that increases the number of devices, at the end of a reshape that decreases the number of devices, and continuously for a reshape that does not change the number of devices. The current code is correct for the "increase number of devices" case as the critical section at the start is handled by userspace performing a backup. It does not work for reducing the number of devices, or the no-change case. For 'reducing', we need to invert the test. For no-change we cannot really be sure things will be safe, so simply require the array to be read-only, which is how the user-space code which carefully starts such arrays works. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2b521ee67dfa..b8a22a2205cf 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4509,7 +4509,26 @@ static int run(mddev_t *mddev) (old_disks-max_degraded)); /* here_old is the first stripe that we might need to read * from */ - if (here_new >= here_old) { + if (mddev->delta_disks == 0) { + /* We cannot be sure it is safe to start an in-place + * reshape. It is only safe if user-space if monitoring + * and taking constant backups. + * mdadm always starts a situation like this in + * readonly mode so it can take control before + * allowing any writes. So just check for that. + */ + if ((here_new * mddev->new_chunk_sectors != + here_old * mddev->chunk_sectors) || + mddev->ro == 0) { + printk(KERN_ERR "raid5: in-place reshape must be started" + " in read-only mode - aborting\n"); + return -EINVAL; + } + } else if (mddev->delta_disks < 0 + ? (here_new * mddev->new_chunk_sectors <= + here_old * mddev->chunk_sectors) + : (here_new * mddev->new_chunk_sectors >= + here_old * mddev->chunk_sectors)) { /* Reading from the same stripe as writing to - bad */ printk(KERN_ERR "raid5: reshape_position too early for " "auto-recovery - aborting.\n"); -- cgit v1.2.3-59-g8ed1b From a639755cf885e437b2fe4168d35157fa90d530ab Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:13:00 +1000 Subject: md/raid5: make sure a reshape restarts at the correct address. This "if" don't allow for the possibility that the number of devices doesn't change, and so sector_nr isn't set correctly in that case. So change '>' to '>='. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/md') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index b8a22a2205cf..94a74cb5cccb 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3785,7 +3785,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped conf->reshape_progress < raid5_size(mddev, 0, 0)) { sector_nr = raid5_size(mddev, 0, 0) - conf->reshape_progress; - } else if (mddev->delta_disks > 0 && + } else if (mddev->delta_disks >= 0 && conf->reshape_progress > 0) sector_nr = conf->reshape_progress; sector_div(sector_nr, new_data_disks); -- cgit v1.2.3-59-g8ed1b From 1a67dde0abba36421a1257d01ba9de2f6d1c160a Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:41:49 +1000 Subject: md/raid5: Properly remove excess drives after shrinking a raid5/6 We were removing the drives, from the array, but not removing symlinks from /sys/.... and not marking the device as having been removed. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 94a74cb5cccb..b8a2c5dc67ba 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5097,8 +5097,15 @@ static void raid5_finish_reshape(mddev_t *mddev) mddev->degraded--; for (d = conf->raid_disks ; d < conf->raid_disks - mddev->delta_disks; - d++) - raid5_remove_disk(mddev, d); + d++) { + mdk_rdev_t *rdev = conf->disks[d].rdev; + if (rdev && raid5_remove_disk(mddev, d) == 0) { + char nm[20]; + sprintf(nm, "rd%d", rdev->raid_disk); + sysfs_remove_link(&mddev->kobj, nm); + rdev->raid_disk = -1; + } + } } mddev->layout = conf->algorithm; mddev->chunk_sectors = conf->chunk_sectors; -- cgit v1.2.3-59-g8ed1b From 4d484a4a7a5126410eed5f8dd329a33f6eeed068 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Aug 2009 10:41:50 +1000 Subject: md: allow upper limit for resync/reshape to be set when array is read-only Normally we only allow the upper limit for a reshape to be decreased when the array not performing a sync/recovery/reshape, otherwise there could be races. But if an array is part-way through a reshape when it is assembled the reshape is started immediately leaving no window to set an upper bound. If the array is started read-only, the reshape will be suspended until the array becomes writable, so that provides a window during which it is perfectly safe to reduce the upper limit of a reshape. So: allow the upper limit (sync_max) to be reduced even if the reshape thread is running, as long as the array is still read-only. Signed-off-by: NeilBrown --- drivers/md/md.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index d18805fea111..103f2d33fa89 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3599,6 +3599,7 @@ max_sync_store(mddev_t *mddev, const char *buf, size_t len) if (max < mddev->resync_min) return -EINVAL; if (max < mddev->resync_max && + mddev->ro == 0 && test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) return -EBUSY; -- cgit v1.2.3-59-g8ed1b From 80ffb3cceaefa405f2ecd46d66500ed8d53efe74 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 18 Aug 2009 10:35:26 +1000 Subject: Fix new incorrect error return from do_md_stop. Recent commit c8c00a6915a2e3d10416e8bdd3138429beb96210 changed the exit paths in do_md_stop and was not quite careful enough. There is one path were 'err' now needs to be cleared but it isn't. So setting an array to readonly (with mdadm --readonly) will work, but will incorrectly report and error: ENXIO. Signed-off-by: NeilBrown --- drivers/md/md.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 103f2d33fa89..9dd872000cec 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4364,6 +4364,7 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) if (mode == 1) set_disk_ro(disk, 1); clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + err = 0; } out: mutex_unlock(&mddev->open_mutex); -- cgit v1.2.3-59-g8ed1b