diff options
Diffstat (limited to 'block/blk-sysfs.c')
| -rw-r--r-- | block/blk-sysfs.c | 84 |
1 files changed, 34 insertions, 50 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 88bd41d4cb59..c0303026752d 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -274,6 +274,11 @@ static ssize_t queue_virt_boundary_mask_show(struct request_queue *q, char *page return queue_var_show(q->limits.virt_boundary_mask, page); } +static ssize_t queue_dma_alignment_show(struct request_queue *q, char *page) +{ + return queue_var_show(queue_dma_alignment(q), page); +} + #define QUEUE_SYSFS_BIT_FNS(name, flag, neg) \ static ssize_t \ queue_##name##_show(struct request_queue *q, char *page) \ @@ -320,17 +325,17 @@ static ssize_t queue_zoned_show(struct request_queue *q, char *page) static ssize_t queue_nr_zones_show(struct request_queue *q, char *page) { - return queue_var_show(blk_queue_nr_zones(q), page); + return queue_var_show(disk_nr_zones(q->disk), page); } static ssize_t queue_max_open_zones_show(struct request_queue *q, char *page) { - return queue_var_show(queue_max_open_zones(q), page); + return queue_var_show(bdev_max_open_zones(q->disk->part0), page); } static ssize_t queue_max_active_zones_show(struct request_queue *q, char *page) { - return queue_var_show(queue_max_active_zones(q), page); + return queue_var_show(bdev_max_active_zones(q->disk->part0), page); } static ssize_t queue_nomerges_show(struct request_queue *q, char *page) @@ -606,6 +611,7 @@ QUEUE_RO_ENTRY(queue_dax, "dax"); QUEUE_RW_ENTRY(queue_io_timeout, "io_timeout"); QUEUE_RW_ENTRY(queue_wb_lat, "wbt_lat_usec"); QUEUE_RO_ENTRY(queue_virt_boundary_mask, "virt_boundary_mask"); +QUEUE_RO_ENTRY(queue_dma_alignment, "dma_alignment"); #ifdef CONFIG_BLK_DEV_THROTTLING_LOW QUEUE_RW_ENTRY(blk_throtl_sample_time, "throttle_sample_time"); @@ -667,6 +673,7 @@ static struct attribute *queue_attrs[] = { &blk_throtl_sample_time_entry.attr, #endif &queue_virt_boundary_mask_entry.attr, + &queue_dma_alignment_entry.attr, NULL, }; @@ -748,11 +755,6 @@ static void blk_free_queue_rcu(struct rcu_head *rcu_head) * decremented with blk_put_queue(). Once the refcount reaches 0 this function * is called. * - * For drivers that have a request_queue on a gendisk and added with - * __device_add_disk() the refcount to request_queue will reach 0 with - * the last put_disk() called by the driver. For drivers which don't use - * __device_add_disk() this happens with blk_cleanup_queue(). - * * Drivers exist which depend on the release of the request_queue to be * synchronous, it should not be deferred. * @@ -774,25 +776,15 @@ static void blk_release_queue(struct kobject *kobj) blk_free_queue_stats(q->stats); kfree(q->poll_stat); - blk_queue_free_zone_bitmaps(q); - if (queue_is_mq(q)) blk_mq_release(q); - blk_trace_shutdown(q); - mutex_lock(&q->debugfs_mutex); - debugfs_remove_recursive(q->debugfs_dir); - mutex_unlock(&q->debugfs_mutex); - - if (queue_is_mq(q)) - blk_mq_debugfs_unregister(q); - bioset_exit(&q->bio_split); if (blk_queue_has_srcu(q)) cleanup_srcu_struct(q->srcu); - ida_simple_remove(&blk_queue_ida, q->id); + ida_free(&blk_queue_ida, q->id); call_rcu(&q->rcu_head, blk_free_queue_rcu); } @@ -801,7 +793,13 @@ static const struct sysfs_ops queue_sysfs_ops = { .store = queue_attr_store, }; +static const struct attribute_group *blk_queue_attr_groups[] = { + &queue_attr_group, + NULL +}; + struct kobj_type blk_queue_ktype = { + .default_groups = blk_queue_attr_groups, .sysfs_ops = &queue_sysfs_ops, .release = blk_release_queue, }; @@ -812,43 +810,27 @@ struct kobj_type blk_queue_ktype = { */ int blk_register_queue(struct gendisk *disk) { - int ret; - struct device *dev = disk_to_dev(disk); struct request_queue *q = disk->queue; - - ret = blk_trace_init_sysfs(dev); - if (ret) - return ret; + int ret; mutex_lock(&q->sysfs_dir_lock); - ret = kobject_add(&q->kobj, kobject_get(&dev->kobj), "%s", "queue"); - if (ret < 0) { - blk_trace_remove_sysfs(dev); + ret = kobject_add(&q->kobj, &disk_to_dev(disk)->kobj, "queue"); + if (ret < 0) goto unlock; - } - ret = sysfs_create_group(&q->kobj, &queue_attr_group); - if (ret) { - blk_trace_remove_sysfs(dev); - kobject_del(&q->kobj); - kobject_put(&dev->kobj); - goto unlock; - } + if (queue_is_mq(q)) + blk_mq_sysfs_register(disk); + mutex_lock(&q->sysfs_lock); mutex_lock(&q->debugfs_mutex); q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent), blk_debugfs_root); - mutex_unlock(&q->debugfs_mutex); - - if (queue_is_mq(q)) { - __blk_mq_register_dev(dev, q); + if (queue_is_mq(q)) blk_mq_debugfs_register(q); - } - - mutex_lock(&q->sysfs_lock); + mutex_unlock(&q->debugfs_mutex); - ret = disk_register_independent_access_ranges(disk, NULL); + ret = disk_register_independent_access_ranges(disk); if (ret) goto put_dev; @@ -897,8 +879,6 @@ put_dev: mutex_unlock(&q->sysfs_lock); mutex_unlock(&q->sysfs_dir_lock); kobject_del(&q->kobj); - blk_trace_remove_sysfs(dev); - kobject_put(&dev->kobj); return ret; } @@ -936,9 +916,8 @@ void blk_unregister_queue(struct gendisk *disk) * structures that can be modified through sysfs. */ if (queue_is_mq(q)) - blk_mq_unregister_dev(disk_to_dev(disk), q); + blk_mq_sysfs_unregister(disk); blk_crypto_sysfs_unregister(q); - blk_trace_remove_sysfs(disk_to_dev(disk)); mutex_lock(&q->sysfs_lock); elv_unregister_queue(q); @@ -948,8 +927,13 @@ void blk_unregister_queue(struct gendisk *disk) /* Now that we've deleted all child objects, we can delete the queue. */ kobject_uevent(&q->kobj, KOBJ_REMOVE); kobject_del(&q->kobj); - mutex_unlock(&q->sysfs_dir_lock); - kobject_put(&disk_to_dev(disk)->kobj); + mutex_lock(&q->debugfs_mutex); + blk_trace_shutdown(q); + debugfs_remove_recursive(q->debugfs_dir); + q->debugfs_dir = NULL; + q->sched_debugfs_dir = NULL; + q->rqos_debugfs_dir = NULL; + mutex_unlock(&q->debugfs_mutex); } |