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Re: [PATCH V2] xfstests 249: use -F option for xfs_io

To: Eric Sandeen <sandeen@xxxxxxxxxx>
Subject: Re: [PATCH V2] xfstests 249: use -F option for xfs_io
From: Alex Elder <aelder@xxxxxxx>
Date: Mon, 04 Apr 2011 13:36:00 -0500
Cc: xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <4D8A19D4.3080807@xxxxxxxxxx>
References: <4D8A1795.3080401@xxxxxxxxxx> <4D8A19D4.3080807@xxxxxxxxxx>
Reply-to: aelder@xxxxxxx
On Wed, 2011-03-23 at 11:03 -0500, Eric Sandeen wrote:
> Test 249 was appearing to pass on ext4, but it wasn't really
> exercising the test due to lack of "-F" in the xfs_io arguments.
> 
> Without -F the files were created (oddly enough); neither pwrite
> nor sendfile were executed, and the diff of the two (empty)
> files passed, resulting in a passed test without testing anything.
> 
> So add the -F, capture the output, and test the result of each
> xfs_io invocation.
> 
> Also, when it fails, the diff output is huge.  Make diff silent,
> but describe the diff failure and exit.
> 
> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>

Looks good.

Reviewed-by: Alex Elder <aelder@xxxxxxx>


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