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Re: [PATCH] xfstests: make defrag test 222 generic

To: Rich Johnston <rjohnston@xxxxxxx>
Subject: Re: [PATCH] xfstests: make defrag test 222 generic
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Fri, 15 Mar 2013 11:05:08 -0500
Cc: dsterba@xxxxxxx, Eric Sandeen <sandeen@xxxxxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>, ext4 development <linux-ext4@xxxxxxxxxxxxxxx>, linux-btrfs <linux-btrfs@xxxxxxxxxxxxxxx>
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In-reply-to: <51434653.40808@xxxxxxx>
References: <513F5B0A.4030405@xxxxxxxxxx> <20130315145540.GG7229@xxxxxxxxxxxxx> <51434653.40808@xxxxxxx>
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On 3/15/13 11:03 AM, Rich Johnston wrote:
> On 03/15/2013 09:55 AM, David Sterba wrote:
>> On Tue, Mar 12, 2013 at 11:42:50AM -0500, Eric Sandeen wrote:
>>> Define a new _defrag_dir() helper which just runs noisy/debug
>>> dir defrag for ext4 and/or btrfs as well, and use that in 222
>>> instead of hardcoded xfs_fsr.
>> Dir defrag on btrfs does not recurse in the given directory to defrag
>> all files, but defragments the tree of the containing subvolume and the
>> whole extent tree (thus needs CAP_SYS_ADMIN).
>> This is known (and not very intuitive) behaviour, it would be better to
>> add a special parameter to defrag the root and/or the extent root and
>> pass it down to the ioctl via flags.
>> Until this is implemented I suggest to use a workaround via 'find':
>>   find $dir -print -execdir $DEFRAG_PROG '{}' +
>> Otherwise the test looks ok.
>> david
> Eric, I will make this change at commit time if you agree?
> David, can I put your name as the reviewer when I do?

I think that's big enough change I should send a V2. and
make a btrfs-special case in _defrag_dir.


> Thanks
> --Rich
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