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SubjectRe: [PATCH] Fix for bad lock balance in Containers
On Tue, Jun 26, 2007 at 10:30:11AM +0530, Dhaval Giani wrote:
Hi,

There was a mistake in the patch. Thanks to Andrew Morton for pointing it out.
Sending out a fresh patch. Sorry for the mistake!

> BUG_ON(ret);
> } else {
> /* Reuse the existing superblock */
> + down_write(&(root->sb->umount));

Should be down_write(&(root->sb->s_umount));

> ret = simple_set_mnt(mnt, root->sb);
> if (!ret)
> atomic_inc(&root->sb->s_active);

Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>


--- linux-2.6.22-rc4/kernel/container.c 2007-06-13 15:38:32.000000000 +0530
+++ old/kernel/container.c 2007-06-25 00:55:03.000000000 +0530
@@ -995,6 +995,7 @@ static int container_get_sb(struct file_
BUG_ON(ret);
} else {
/* Reuse the existing superblock */
+ down_write(&(root->sb->s_umount));
ret = simple_set_mnt(mnt, root->sb);
if (!ret)
atomic_inc(&root->sb->s_active);
-
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