diff options
| author | NeilBrown <neilb@suse.de> | 2006-12-08 02:36:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-08 08:28:38 -0800 |
| commit | fd27c7a1bfa9801544ca961cdb4ca0b4998580b8 (patch) | |
| tree | 44749ea9d81931cbe5a753b972f6b9fde92a6496 /fs/block_dev.c | |
| parent | 35a6027f1ab6594068cb8bca7705e4567753946b (diff) | |
| download | lwn-fd27c7a1bfa9801544ca961cdb4ca0b4998580b8.tar.gz lwn-fd27c7a1bfa9801544ca961cdb4ca0b4998580b8.zip | |
[PATCH] lockdep: remove lock_key approach to managing nested bd_mutex locks
The extra call to get_gendisk is not good. It causes a ->probe and possible
module load before it is really appropriate to do this.
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 528cf053ce96..36c38f48a4ed 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -355,14 +355,10 @@ static int bdev_set(struct inode *inode, void *data) static LIST_HEAD(all_bdevs); -static struct lock_class_key bdev_part_lock_key; - struct block_device *bdget(dev_t dev) { struct block_device *bdev; struct inode *inode; - struct gendisk *disk; - int part = 0; inode = iget5_locked(bd_mnt->mnt_sb, hash(dev), bdev_test, bdev_set, &dev); @@ -388,11 +384,6 @@ struct block_device *bdget(dev_t dev) list_add(&bdev->bd_list, &all_bdevs); spin_unlock(&bdev_lock); unlock_new_inode(inode); - mutex_init(&bdev->bd_mutex); - disk = get_gendisk(dev, &part); - if (part) - lockdep_set_class(&bdev->bd_mutex, &bdev_part_lock_key); - put_disk(disk); } return bdev; } |