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SubjectRe: [PATCH, RFC] xfs: batched discard support
On Sat, Aug 15, 2009 at 10:19:21PM -0400, Mark Lord wrote:
> Mark Lord wrote:
>> Christoph Hellwig wrote:
> ..
>>> Mark, any chance to try it? Just create an XFS filesystem, age it a
>>> bit and then call the attached little trim.c program on the mountmoint
>>> (or any file inside the filesystem for that matter)
>> ..
>>
>> Looking at it now. Thanks, Christoph!
> ..
>
> Fails to work on 64-bit kernel w/ 32-bit userspace (no compat ioctl).
> Rebuilding with 32-bit kernel now..

The actual ioctl is compatible, just add the

case XFS_IOC_TRIM:
return xfs_ioc_trim(mp, arg);

to xfs_file_compat_ioctl(). I'll add this to the next spin of the
patch.



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