TononixOS/ubports_kernel_google_msm
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[PATCH] sem2mutex: blockdev #2

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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>
This commit is contained in:
Arjan van de Ven
2006-03-23 03:00:28 -08:00
committed by Linus Torvalds
parent 6f87f0deeb
commit c039e3134a
7 changed files with 38 additions and 38 deletions
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22
block/ioctl.c
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@@ -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;
}