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| author | Matias Bjørling <m@bjorling.me> | 2016-09-16 14:25:06 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-09-21 07:56:16 -0600 |
| commit | b21d5b301794ae332eaa6e177d71fe8b77d3664c (patch) | |
| tree | 338c8338e49341229936f0a38c1d58841f664ff6 /block | |
| parent | 9ae2d0aa5046c67dd37cf4b70998ad296e718835 (diff) | |
| download | linux-0-day-b21d5b301794ae332eaa6e177d71fe8b77d3664c.tar.gz linux-0-day-b21d5b301794ae332eaa6e177d71fe8b77d3664c.tar.xz | |
blk-mq: register device instead of disk
Enable devices without a gendisk instance to register itself with blk-mq
and expose the associated multi-queue sysfs entries.
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-mq-sysfs.c | 17 | ||||
| -rw-r--r-- | block/blk-sysfs.c | 4 |
2 files changed, 9 insertions, 12 deletions
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c index 3c385b196bc71..01fb455d33774 100644 --- a/block/blk-mq-sysfs.c +++ b/block/blk-mq-sysfs.c @@ -393,9 +393,8 @@ static int blk_mq_register_hctx(struct blk_mq_hw_ctx *hctx) return ret; } -static void __blk_mq_unregister_disk(struct gendisk *disk) +static void __blk_mq_unregister_dev(struct device *dev, struct request_queue *q) { - struct request_queue *q = disk->queue; struct blk_mq_hw_ctx *hctx; struct blk_mq_ctx *ctx; int i, j; @@ -413,15 +412,15 @@ static void __blk_mq_unregister_disk(struct gendisk *disk) kobject_del(&q->mq_kobj); kobject_put(&q->mq_kobj); - kobject_put(&disk_to_dev(disk)->kobj); + kobject_put(&dev->kobj); q->mq_sysfs_init_done = false; } -void blk_mq_unregister_disk(struct gendisk *disk) +void blk_mq_unregister_dev(struct device *dev, struct request_queue *q) { blk_mq_disable_hotplug(); - __blk_mq_unregister_disk(disk); + __blk_mq_unregister_dev(dev, q); blk_mq_enable_hotplug(); } @@ -443,10 +442,8 @@ static void blk_mq_sysfs_init(struct request_queue *q) } } -int blk_mq_register_disk(struct gendisk *disk) +int blk_mq_register_dev(struct device *dev, struct request_queue *q) { - struct device *dev = disk_to_dev(disk); - struct request_queue *q = disk->queue; struct blk_mq_hw_ctx *hctx; int ret, i; @@ -467,7 +464,7 @@ int blk_mq_register_disk(struct gendisk *disk) } if (ret) - __blk_mq_unregister_disk(disk); + __blk_mq_unregister_dev(dev, q); else q->mq_sysfs_init_done = true; out: @@ -475,7 +472,7 @@ out: return ret; } -EXPORT_SYMBOL_GPL(blk_mq_register_disk); +EXPORT_SYMBOL_GPL(blk_mq_register_dev); void blk_mq_sysfs_unregister(struct request_queue *q) { diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index f87a7e747d360..9cc8d7c5439a9 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -704,7 +704,7 @@ int blk_register_queue(struct gendisk *disk) kobject_uevent(&q->kobj, KOBJ_ADD); if (q->mq_ops) - blk_mq_register_disk(disk); + blk_mq_register_dev(dev, q); if (!q->request_fn) return 0; @@ -729,7 +729,7 @@ void blk_unregister_queue(struct gendisk *disk) return; if (q->mq_ops) - blk_mq_unregister_disk(disk); + blk_mq_unregister_dev(disk_to_dev(disk), q); if (q->request_fn) elv_unregister_queue(q); |