[PATCH] xfs: Fix wrong return value of xfs_file_aio_write

[Christoph Hellwig]

On Sun, Jul 24, 2011 at 01:54:20PM +0200, Markus Trippelsdorf wrote:
> On 2011.07.24 at 07:16 -0400, Christoph Hellwig wrote:
> > On Sun, Jul 24, 2011 at 12:02:12AM +0200, Markus Trippelsdorf wrote:
> > > The following patch fixes the problem for me:
> > 
> > Good catch, can you send it with a proper signoff and description?
> 
> The fsync prototype change commit 02c24a82187d accidentally overwrote
> the ssize_t return value of xfs_file_aio_write with 0 for SYNC type
> writes. Fix this by checking if an error occured when calling
> xfs_file_fsync and only change the return value in this case.
> In addition xfs_file_fsync actually returns a normal negative error, so
> fix this, too.
> ---
>  fs/xfs/linux-2.6/xfs_file.c |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)

The Signed-off-by: line is still missing, and you normally shouldn't
quote the previous mail you reply to for patches.  Sorry for beeing
nit-picky, but see this as a training exercise :)

You can also add:

Reviewed-by: Christoph Hellwig <hch at lst.de>
Tested-by: Christoph Hellwig <hch at lst.de>

as I've run this through xfsqa (strictly speaking it's still running,
but it looks good so far)