[Devel] Re: [PATCH] cgroup: fix reverse unlock sequence in cgroup_get_sb

[Danny Feng]

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 at 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 at redhat.com>
>>> Acked-by: Paul Menage<menage at google.com>
>>>
>>> Paul
>

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