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Date:	Tue, 24 Feb 2015 09:46:20 +1100
From:	Dave Chinner <david@...morbit.com>
To:	Omar Sandoval <osandov@...ndov.com>
Cc:	fstests@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: add regression tests for ^extents punch hole

On Mon, Feb 23, 2015 at 02:39:36PM -0800, Omar Sandoval wrote:
> Linux commit 6f30b7e37a82 (ext4: fix indirect punch hole corruption)
> fixes several bugs in the FALLOC_FL_PUNCH_HOLE implementation for an
> ext4 filesystem with indirect blocks.
> 
> Signed-off-by: Omar Sandoval <osandov@...ndov.com>
> ---
>  tests/ext4/005     | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/ext4/005.out |  29 ++++++++++++++
>  tests/ext4/group   |   1 +
>  3 files changed, 145 insertions(+)
>  create mode 100755 tests/ext4/005
>  create mode 100644 tests/ext4/005.out

What's ext4 specific about this test apart from the mkfs parameter?
Shouldn't it be generic and so test all the filesystems behave the
same?  i.e. when someone then runs

# MKFS_OPTIONS="-b size=1k -O ^extents" ./check -g auto

That will exercise this specific regression fix, not to mention give
much, much better test coverage of that configuration than just
making a single test use that config...

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com
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