diff options
| author |   NeilBrown <neilb@suse.de> | 2009-01-09 08:31:05 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-01-09 08:31:05 +1100 |
| commit | 0c3573f19d135d718264e38c46597295bd6154b7 (patch) | |
| tree | 0943035f89d163d9d7b354445303fb03e5ea7fb1 | |
| parent | md: fix bitmap-on-external-file bug. (diff) | |
| download | linux-dev-0c3573f19d135d718264e38c46597295bd6154b7.tar.xz linux-dev-0c3573f19d135d718264e38c46597295bd6154b7.zip | |
md: use sysfs_notify_dirent to notify changes to md/sync_action.
There is no compelling need for this, but sysfs_notify_dirent is a
nicer interface and the change is good for consistency.
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | drivers/md/md.c | 20 | ||||
| -rw-r--r-- | include/linux/raid/md_k.h | 1 |
2 files changed, 14 insertions, 7 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 1b1d32694f6f..ee759b193e9a 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3046,7 +3046,7 @@ action_store(mddev_t *mddev, const char *page, size_t len) } set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); - sysfs_notify(&mddev->kobj, NULL, "sync_action"); + sysfs_notify_dirent(mddev->sysfs_action); return len; } @@ -3684,6 +3684,7 @@ static int do_md_run(mddev_t * mddev) printk(KERN_WARNING "md: cannot register extra attributes for %s\n", mdname(mddev)); + mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, "sync_action"); } else if (mddev->ro == 2) /* auto-readonly not meaningful */ mddev->ro = 0; @@ -3754,7 +3755,8 @@ static int do_md_run(mddev_t * mddev) mddev->changed = 1; md_new_event(mddev); sysfs_notify_dirent(mddev->sysfs_state); - sysfs_notify(&mddev->kobj, NULL, "sync_action"); + if (mddev->sysfs_action) + sysfs_notify_dirent(mddev->sysfs_action); sysfs_notify(&mddev->kobj, NULL, "degraded"); kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE); return 0; @@ -3854,9 +3856,12 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) mddev->queue->merge_bvec_fn = NULL; mddev->queue->unplug_fn = NULL; mddev->queue->backing_dev_info.congested_fn = NULL; - if (mddev->pers->sync_request) + if (mddev->pers->sync_request) { sysfs_remove_group(&mddev->kobj, &md_redundancy_group); - + if (mddev->sysfs_action) + sysfs_put(mddev->sysfs_action); + mddev->sysfs_action = NULL; + } module_put(mddev->pers->owner); mddev->pers = NULL; /* tell userspace to handle 'inactive' */ @@ -6155,7 +6160,7 @@ void md_check_recovery(mddev_t *mddev) mddev->recovery = 0; /* flag recovery needed just to double check */ set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); - sysfs_notify(&mddev->kobj, NULL, "sync_action"); + sysfs_notify_dirent(mddev->sysfs_action); md_new_event(mddev); goto unlock; } @@ -6216,7 +6221,7 @@ void md_check_recovery(mddev_t *mddev) mddev->recovery = 0; } else md_wakeup_thread(mddev->sync_thread); - sysfs_notify(&mddev->kobj, NULL, "sync_action"); + sysfs_notify_dirent(mddev->sysfs_action); md_new_event(mddev); } unlock: @@ -6224,7 +6229,8 @@ void md_check_recovery(mddev_t *mddev) clear_bit(MD_RECOVERY_RUNNING, &mddev->recovery); if (test_and_clear_bit(MD_RECOVERY_RECOVER, &mddev->recovery)) - sysfs_notify(&mddev->kobj, NULL, "sync_action"); + if (mddev->sysfs_action) + sysfs_notify_dirent(mddev->sysfs_action); } mddev_unlock(mddev); } diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 8fc909ef6787..663803eaf0de 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -244,6 +244,7 @@ struct mddev_s struct sysfs_dirent *sysfs_state; /* handle for 'array_state' * file in sysfs. */ + struct sysfs_dirent *sysfs_action; /* handle for 'sync_action' */ spinlock_t write_lock; wait_queue_head_t sb_wait; /* for waiting on superblock updates */ |