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List:       linux-kernel
Subject:    Re: [PATCH] ext3: handle corrupted orphan list at mount
From:       Sami Liedes <sliedes () cc ! hut ! fi>
Date:       2008-06-23 22:32:39
Message-ID: 20080623223238.GA8802 () vipunen ! hut ! fi
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On Mon, Jun 23, 2008 at 10:56:40PM +0100, Duane Griffin wrote:
> If the orphan node list includes valid, untruncatable nodes with nlink > 0
> the ext3_orphan_cleanup loop which attempts to delete them will not do so,
> causing it to loop forever. Fix by checking for such nodes in the
> ext3_orphan_get function.

You people working hard to fix bugs and implement great filesystems
almost makes me feel bad for trying to break your code :)

> diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
> index 7712682..bc030f4 100644
> --- a/fs/ext3/ialloc.c
> +++ b/fs/ext3/ialloc.c
[...]
> @@ -690,6 +698,7 @@ bad_orphan:
> 		printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
> 		       NEXT_ORPHAN(inode));
> 		printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
> +		printk(KERN_NOTICE "i_nlink=%lu\n", inode->i_nlink);
					    ^^^

Here I get (on x86 gcc 4.3.1):

fs/ext3/ialloc.c: In function 'ext3_orphan_get':
fs/ext3/ialloc.c:701: warning: format '%lu' expects type 'long unsigned int', but \
argument 2 has type 'unsigned int'

So it probably should be %u or something.

	Sami
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