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From: Danny Feng <dfeng@redhat.com>
To: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>,
	containers@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] cgroup: fix reverse unlock sequence in cgroup_get_sb
Date: Wed, 22 Jul 2009 10:32:14 +0800	[thread overview]
Message-ID: <4A667A2E.9070206@redhat.com> (raw)
In-Reply-To: <4A6676F4.7070201@cn.fujitsu.com>

On 07/22/2009 10:18 AM, Li Zefan wrote:
> Danny Feng wrote:
>> On 07/22/2009 12:03 AM, Paul Menage wrote:
>>> On Tue, Jul 21, 2009 at 3:25 AM, Xiaotian Feng<dfeng@redhat.com>   wrote:
>>>> In cgroup_get_sb, the lock sequence is:
>>>>          mutex_lock(&inode->i_mutex);
>>>>          mutex_lock(&cgroup->mutex);
>>>> so the last unlock sequence should be:
>>> Make this "so for consistency the last ..." ?
>>>
>>> Maybe make the patch title "Make unlock sequence in cgroup_get_sb
>>> consistent" so someone looking through the change logs for fixes to
>>> backport doesn't wrongly thing that this fixes any bug"?
>>>
>> Yep, this is a trivial patch.  Modified following your suggestion, thank
>> you.
>>
>
> As far as it's not declared as a fix, I has no objection to this
> patch.
>
> Please always inline the patch in the mail body. And when resending
> the patch, add the acked-by you collected in it:
>
> Acked-by: Balbir ...
> Acked-by: Paul ...
> Signed-off-by: Xiaotian ...
>
> You may resend the patch to Andrew Morton, who picks up cgroup
> patches, otherwise the patch may be overlooked.
>
Got it, thank you very much.
>>>>          mutex_unlock(&cgroup->mutex);
>>>>          mutex_unlock(&inode->i_mutex);
>>>>
>>>> Signed-off-by: Xiaotian Feng<dfeng@redhat.com>
>>> Acked-by: Paul Menage<menage@google.com>
>>>
>>> Paul
>


      reply	other threads:[~2009-07-22  2:32 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-21 10:25 [PATCH] cgroup: fix reverse unlock sequence in cgroup_get_sb Xiaotian Feng
2009-07-21 11:10 ` Balbir Singh
2009-07-21 11:12   ` Danny Feng
     [not found]   ` <8522a3d30907210438u6fce081fi835bf964d0c01e8a@mail.gmail.com>
2009-07-21 12:01     ` Balbir Singh
2009-07-21 15:34       ` Paul Menage
2009-07-21 15:47         ` Balbir Singh
2009-07-22  0:53       ` Li Zefan
2009-07-22  1:42         ` Danny Feng
2009-07-21 16:03 ` Paul Menage
2009-07-22  1:57   ` Danny Feng
2009-07-22  2:18     ` Li Zefan
2009-07-22  2:32       ` Danny Feng [this message]

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