[PATCH] xfs_io: actually issue 0 size writes

[Eric Sandeen]

On Aug 26, 2009, at 3:11 PM, Christoph Hellwig <hch at infradead.org>  
wrote:

> On Thu, Aug 13, 2009 at 05:15:50PM -0500, Eric Sandeen wrote:
>> While testing some stuff in generic_write_checks() in the
>> kernel I realized that you can't actually use xfs_io to send
>> a 0-byte write in.  This is actually a condition worth testing:
>>
>>       If  count  is zero and fd refers to a regular file,
>>       then write() may return a failure status if one  of
>>       the  errors  below  is  detected.  If no errors are
>>       detected, 0 will be returned  without  causing  any
>>       other  effect.
>>
>> So fix that up.
>>
>> Signed-off-by: Eric Sandeen <sandeen at sandeen.net>
>
> Any reason you didn't put this in despite two positive reviews?

Just general busyness and a vacation :)

Will do it soon.

-Eric