Re: [PATCH] Fix for bad lock balance in Containers

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On Tue, Jun 26, 2007 at 10:30:11AM +0530, Dhaval Giani wrote:
> 
> --- 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->umount));
>  		ret = simple_set_mnt(mnt, root->sb);
>  		if (!ret)
>  			atomic_inc(&root->sb->s_active);

Do you want to change this to first take refererence on sb and then
do simple_set_mnt() ?

And btw, simple_set_mnt() always returns zero and looks like it can't fail.

Regards,
Bharata.
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