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From: Paul Menage <menage@google.com>
To: Li Zefan <lizf@cn.fujitsu.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"David Rientjes" <rientjes@google.com>,
	"缪 勰" <miaox@cn.fujitsu.com>,
	linux-mm@kvack.org
Subject: Re: [PATCH 3/4] cpuset: Fix unchecked calls to NODEMASK_ALLOC()
Date: Fri, 18 Feb 2011 18:28:50 -0800	[thread overview]
Message-ID: <AANLkTinDwDbOqfnYQ8b_69iQhPzn7R26wQXPht0NgjAM@mail.gmail.com> (raw)
In-Reply-To: <4D5DDDD7.509@cn.fujitsu.com>

On Thu, Feb 17, 2011 at 6:47 PM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>
> I think a defect of this is people might call it twice in one function
> but don't know it returns the same variable?

Hopefully they'd read the comments...

But it's not a big issue either way - having the WARN_ON() statements
in front of each use works OK too, given that there are only a few of
them.

Paul

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  reply	other threads:[~2011-02-19  2:29 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-17  1:49 [PATCH 1/4] cpuset: Remove unneeded NODEMASK_ALLOC() in cpuset_sprintf_memlist() Li Zefan
2011-02-17  1:49 ` [PATCH 2/4] cpuset: Remove unneeded NODEMASK_ALLOC() in cpuset_attch() Li Zefan
2011-02-17 23:46   ` Paul Menage
2011-02-18  2:37     ` Li Zefan
2011-02-20  1:51   ` David Rientjes
2011-02-17  1:50 ` [PATCH 3/4] cpuset: Fix unchecked calls to NODEMASK_ALLOC() Li Zefan
2011-02-17 22:46   ` Andrew Morton
2011-02-17 23:50     ` Paul Menage
2011-02-18  2:47       ` Li Zefan
2011-02-19  2:28         ` Paul Menage [this message]
2011-02-20  1:51   ` David Rientjes
2011-02-21  3:20     ` Li Zefan
2011-02-21  5:30       ` Li Zefan
2011-02-22  0:25       ` David Rientjes
2011-02-22  2:15         ` Li Zefan
2011-02-22 20:30           ` David Rientjes
2011-02-17  1:50 ` [PATCH 4/4] cpuset: Hold callback_mutex in cpuset_clone() Li Zefan
2011-02-17 23:51   ` Paul Menage
2011-02-20  1:51   ` David Rientjes
2011-02-17 23:35 ` [PATCH 1/4] cpuset: Remove unneeded NODEMASK_ALLOC() in cpuset_sprintf_memlist() Paul Menage
2011-02-18  2:22   ` Li Zefan
2011-02-20  1:51 ` David Rientjes

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