diff options
| author | Arjan van de Ven <arjan@infradead.org> | 2006-03-23 03:00:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 07:38:11 -0800 |
| commit | c039e3134ae62863bbc8e8429b29e3c43cf21b2a (patch) | |
| tree | b9bbf4fda0844e3173bf10a5bffbaaec94fb4246 /block | |
| parent | 6f87f0deebaff2716a3ce9232f948d702690562a (diff) | |
| download | lwn-c039e3134ae62863bbc8e8429b29e3c43cf21b2a.tar.gz lwn-c039e3134ae62863bbc8e8429b29e3c43cf21b2a.zip | |
[PATCH] sem2mutex: blockdev #2
Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jens Axboe <axboe@suse.de>
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 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index e1109491c234..35fdb7dc6512 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -42,9 +42,9 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user return -EINVAL; } /* partition number in use? */ - down(&bdev->bd_sem); + mutex_lock(&bdev->bd_mutex); if (disk->part[part - 1]) { - up(&bdev->bd_sem); + mutex_unlock(&bdev->bd_mutex); return -EBUSY; } /* overlap? */ @@ -55,13 +55,13 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user continue; if (!(start+length <= s->start_sect || start >= s->start_sect + s->nr_sects)) { - up(&bdev->bd_sem); + mutex_unlock(&bdev->bd_mutex); return -EBUSY; } } /* all seems OK */ add_partition(disk, part, start, length); - up(&bdev->bd_sem); + mutex_unlock(&bdev->bd_mutex); return 0; case BLKPG_DEL_PARTITION: if (!disk->part[part-1]) @@ -71,9 +71,9 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user bdevp = bdget_disk(disk, part); if (!bdevp) return -ENOMEM; - down(&bdevp->bd_sem); + mutex_lock(&bdevp->bd_mutex); if (bdevp->bd_openers) { - up(&bdevp->bd_sem); + mutex_unlock(&bdevp->bd_mutex); bdput(bdevp); return -EBUSY; } @@ -81,10 +81,10 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user fsync_bdev(bdevp); invalidate_bdev(bdevp, 0); - down(&bdev->bd_sem); + mutex_lock(&bdev->bd_mutex); delete_partition(disk, part); - up(&bdev->bd_sem); - up(&bdevp->bd_sem); + mutex_unlock(&bdev->bd_mutex); + mutex_unlock(&bdevp->bd_mutex); bdput(bdevp); return 0; @@ -102,10 +102,10 @@ static int blkdev_reread_part(struct block_device *bdev) return -EINVAL; if (!capable(CAP_SYS_ADMIN)) return -EACCES; - if (down_trylock(&bdev->bd_sem)) + if (!mutex_trylock(&bdev->bd_mutex)) return -EBUSY; res = rescan_partitions(disk, bdev); - up(&bdev->bd_sem); + mutex_unlock(&bdev->bd_mutex); return res; } |