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| author | Christoph Hellwig <hch@lst.de> | 2022-11-14 05:26:36 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-11-30 11:09:00 -0700 |
| commit | 2bd85221a625b316114bafaab527770b607095d3 (patch) | |
| tree | cd00e40d6010e33c1e2f957ed1f2203c84a43b13 /block/bsg.c | |
| parent | 40602997be26887bdfa3d58659c3acb4579099e9 (diff) | |
| download | linux-2bd85221a625b316114bafaab527770b607095d3.tar.gz linux-2bd85221a625b316114bafaab527770b607095d3.tar.bz2 linux-2bd85221a625b316114bafaab527770b607095d3.zip | |
block: untangle request_queue refcounting from sysfs
The kobject embedded into the request_queue is used for the queue
directory in sysfs, but that is a child of the gendisks directory and is
intimately tied to it. Move this kobject to the gendisk and use a
refcount_t in the request_queue for the actual request_queue refcounting
that is completely unrelated to the device model.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221114042637.1009333-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bsg.c')
| -rw-r--r-- | block/bsg.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/block/bsg.c b/block/bsg.c index 2ab1351eb082..8eba57b9bb46 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -175,8 +175,10 @@ static void bsg_device_release(struct device *dev) void bsg_unregister_queue(struct bsg_device *bd) { - if (bd->queue->kobj.sd) - sysfs_remove_link(&bd->queue->kobj, "bsg"); + struct gendisk *disk = bd->queue->disk; + + if (disk && disk->queue_kobj.sd) + sysfs_remove_link(&disk->queue_kobj, "bsg"); cdev_device_del(&bd->cdev, &bd->device); put_device(&bd->device); } @@ -216,8 +218,9 @@ struct bsg_device *bsg_register_queue(struct request_queue *q, if (ret) goto out_put_device; - if (q->kobj.sd) { - ret = sysfs_create_link(&q->kobj, &bd->device.kobj, "bsg"); + if (q->disk && q->disk->queue_kobj.sd) { + ret = sysfs_create_link(&q->disk->queue_kobj, &bd->device.kobj, + "bsg"); if (ret) goto out_device_del; } |