| Date | Sat, 22 Sep 2018 15:25:44 +1000 | From | Dave Chinner <> | Subject | Re: [PATCH 3.16 51/63] xfs: catch inode allocation state mismatch corruption |
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On Sat, Sep 22, 2018 at 01:15:42AM +0100, Ben Hutchings wrote: > 3.16.58-rc1 review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Dave Chinner <dchinner@redhat.com> > > commit ee457001ed6c6f31ddad69c24c1da8f377d8472d upstream. > > We recently came across a V4 filesystem causing memory corruption > due to a newly allocated inode being setup twice and being added to > the superblock inode list twice. From code inspection, the only way > this could happen is if a newly allocated inode was not marked as > free on disk (i.e. di_mode wasn't zero). .... > Signed-Off-By: Dave Chinner <dchinner@redhat.com> > Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> > Tested-by: Carlos Maiolino <cmaiolino@redhat.com> > Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> > Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> > [bwh: Backported to 3.16: > - Look up mode in XFS inode, not VFS inode > - Use positive error codes, and EIO instead of EFSCORRUPTED]
Why EIO?
Cheers,
Dave. -- Dave Chinner dchinner@redhat.com
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