From: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: fstests@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: Re: [PATCH] btrfs: test whether fallocate(2) can preallocate half of the whole fs space
Date: Thu, 21 Jul 2016 15:24:38 +0800 [thread overview]
Message-ID: <579078B6.2020604@cn.fujitsu.com> (raw)
In-Reply-To: <20160720190009.GA13348@infradead.org>
hello,
On 07/21/2016 03:00 AM, Christoph Hellwig wrote:
> On Wed, Jul 20, 2016 at 03:34:50PM +0800, Wang Xiaoguang wrote:
>> Currently in btrfs, there is something wrong with data space reservation.
>> For example, if we try to preallocate more than haf of whole fs space,
>> ENOSPC will occur, but indeed fs still has free space to satisfy this
>> request.
>>
>> To easily reproduce this bug, this test case needs fs is mixed mode(btrfs
>> specific), so put this test case in btrfs group, not generic group.
> But the actual test isn't btrfs specific, and other file systems might
> have issues in this area as well. Please add it to the generic group
> instead.
OK, new version will be sent soon.
ext4 & xfs pass the test, btrfs fails.
Regards,
Xiaoguang Wang
>
prev parent reply other threads:[~2016-07-21 7:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-20 7:34 [PATCH] btrfs: test whether fallocate(2) can preallocate half of the whole fs space Wang Xiaoguang
2016-07-20 9:25 ` Filipe Manana
2016-07-21 7:22 ` Wang Xiaoguang
2016-07-20 19:00 ` Christoph Hellwig
2016-07-21 7:24 ` Wang Xiaoguang [this message]
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