Commit ddca60c5 authored by Arjan van de Ven's avatar Arjan van de Ven Committed by Linus Torvalds

[PATCH] lockdep: annotate the BLKPG_DEL_PARTITION ioctl

The delete partition IOCTL takes the bd_mutex for both the disk and the
partition; these have an obvious hierarchical relationship and this patch
annotates this relationship for lockdep.
Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
Acked-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 7e56a7dc
......@@ -72,7 +72,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
bdevp = bdget_disk(disk, part);
if (!bdevp)
return -ENOMEM;
mutex_lock(&bdevp->bd_mutex);
mutex_lock_nested(&bdevp->bd_mutex, BD_MUTEX_PARTITION);
if (bdevp->bd_openers) {
mutex_unlock(&bdevp->bd_mutex);
bdput(bdevp);
......@@ -82,7 +82,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
fsync_bdev(bdevp);
invalidate_bdev(bdevp, 0);
mutex_lock(&bdev->bd_mutex);
mutex_lock_nested(&bdev->bd_mutex, BD_MUTEX_WHOLE);
delete_partition(disk, part);
mutex_unlock(&bdev->bd_mutex);
mutex_unlock(&bdevp->bd_mutex);
......
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