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Commit b4cf1b72 authored by Jun'ichi Nomura's avatar Jun'ichi Nomura Committed by Linus Torvalds
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[PATCH] dm/md dependency tree in sysfs: convert bd_sem to bd_mutex 



Convert bd_sem to bd_mutex

Signed-off-by: default avatarJun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent f165921d

fs/block_dev.c

+4 −4
Original line number Diff line number Diff line
@@ -723,11 +723,11 @@ static int bd_claim_by_kobject(struct block_device *bdev, void *holder, 
	if (!bo)

		return -ENOMEM;



	down(&bdev->bd_sem);

	mutex_lock(&bdev->bd_mutex);

	res = bd_claim(bdev, holder);

	if (res || !add_bd_holder(bdev, bo))

		free_bd_holder(bo);

	up(&bdev->bd_sem);

	mutex_unlock(&bdev->bd_mutex);



	return res;

}
@@ -748,11 +748,11 @@ static void bd_release_from_kobject(struct block_device *bdev, 
	if (!kobj)

		return;



	down(&bdev->bd_sem);

	mutex_lock(&bdev->bd_mutex);

	bd_release(bdev);

	if ((bo = del_bd_holder(bdev, kobj)))

		free_bd_holder(bo);

	up(&bdev->bd_sem);

	mutex_unlock(&bdev->bd_mutex);

}



/**