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| author | Arjan van de Ven <arjan@linux.intel.com> | 2006-07-14 00:24:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-14 21:53:53 -0700 |
| commit | ddca60c59032b2c2babc0003cf01015aff340b79 (patch) | |
| tree | c836af2259cb55ebae060268c52b1d3f4773d819 /block | |
| parent | 7e56a7dcbb974d9725d80e50d70c6eed7f71110b (diff) | |
| download | linux-ddca60c59032b2c2babc0003cf01015aff340b79.tar.gz linux-ddca60c59032b2c2babc0003cf01015aff340b79.tar.bz2 linux-ddca60c59032b2c2babc0003cf01015aff340b79.zip | |
[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: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/ioctl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index 9cfa2e1ecb24..309760b7e37f 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -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); |