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From: Eric Sandeen <sandeen@sandeen.net>
To: Christoph Hellwig <hch@infradead.org>
Cc: Josef Bacik <jbacik@redhat.com>, xfs mailing list <xfs@oss.sgi.com>
Subject: Re: [PATCH] xfstests 219: test fiemap
Date: Sat, 18 Jul 2009 11:32:45 -0500	[thread overview]
Message-ID: <4A61F92D.7090708@sandeen.net> (raw)
In-Reply-To: <20090718142339.GA20905@infradead.org>

Christoph Hellwig wrote:
> On Thu, Jul 16, 2009 at 02:43:20PM -0500, Eric Sandeen wrote:
>> Preliminary fiemap testing support based on a test util
>> written by Josef Bacik.
>>
>> For now it's only run with preallocation disabled, because
>> xfs has a tendency to fill in holes with data blocks
>> (EOF prealloc stuff I think) and similar for explicit 
>> preallocation, so this is breaking the preallocation 
>> tests for now, when it finds a "data" block where it expects
>> a preallocated block.
> 
> Wouldn't we be better off to add an fiemap command to xfs_io so that
> we can re-use it instead of having a special test program in xfstests?

I suppose it'd be nice to have, though in this case the test program
also generates all the random patterns and does the checking ... the
fiemap calls are a relatively simple part of it ...

Using xfs_io would be a bit like saying "xfs_io can already generate all
the calls that fsx generates, why not use it instead of a special test
program...." IMHO.

-Eric

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  reply	other threads:[~2009-07-18 16:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-16 19:43 [PATCH] xfstests 219: test fiemap Eric Sandeen
2009-07-18 14:23 ` Christoph Hellwig
2009-07-18 16:32   ` Eric Sandeen [this message]
2009-07-18 22:19     ` Christoph Hellwig
2009-07-27  2:48       ` Eric Sandeen

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