[PATCH V2] xfs_repair: skip freelist scan of corrupt agf in no-modify mode

[Eric Sandeen]

On 3/8/13 2:31 PM, Rich Johnston wrote:
> This version looks good. ;)

Actually it's not quite:

scan.c: In function ‘scan_freelist’:
scan.c:1074: warning: ‘i’ may be used uninitialized in this function

I don't know what's wrong with my brain these days.  :/

I will send a patch to fix that along w/ the other scan_freelists shortly.

Sorry :/

-Eric

> Reviewed-by: Rich Johnston <rjohnston at sgi.com>
> 
> This has been committed.
> 
> commit 7e8e3cce00f38ee1533df0e7bda6bcb584b03e96
> Author: Eric Sandeen <sandeen at sandeen.net>
> Date:   Sat Mar 2 21:23:12 2013 +0000
> 
>     xfsprogs: xfs_repair skip freelist scan of corrupt agf in no-modify mode
> 
>     In xfs_repair's no-modify mode (-n), verify_set_agf doesn't fix up
>     bad freelist blocks that it finds.  When we get to scan_freelist,
>     this can wreak havoc if, for example, first > last and the loop
>     never exits; we index agfl->agfl_bno[i] off into the weeds.
> 
>     To fix this, re-check the values in no-modify mode, and if
>     they're off, warn about it and skip the scan.
> 
> 
> 
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