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SubjectRe: [patch 16/23] ext3: avoid triggering ext3_error on bad NFS file handle
On Fri, Aug 04, 2006 at 09:45:52AM -0500, Eric Sandeen wrote:
> Greg KH wrote:
> >-stable review patch. If anyone has any objections, please let us know.
> >
> >------------------
> >From: Neil Brown <neilb@suse.de>
> >
> >The inode number out of an NFS file handle gets passed eventually to
> >ext3_get_inode_block() without any checking. If ext3_get_inode_block()
> >allows it to trigger an error, then bad filehandles can have unpleasant
> >effect - ext3_error() will usually cause a forced read-only remount, or a
> >panic if `errors=panic' was used.
> >
> >So remove the call to ext3_error there and put a matching check in
> >ext3/namei.c where inode numbers are read off storage.
>
> This patch and the ext2 patch (23/23) are accomplishing the same thing in 2
> different ways, I think, and introducing unnecessary differences between
> ext2 and ext3. I'd personally prefer to see both ext2 and ext3 handled
> with the get_dentry op addition, and I'd be happy to quickly whip up the
> ext3 patch to do this if there's agreement on this path.

I completly agree with Eric here. Also pushing out only the fix for one
(and today probably the lesser used) filesystems to -stable seems wrong.
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