linux-kernel - Re: [PATCH 0/2][cleanup] memcg: renaming of mem variable to memcg

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Date:	Thu, 11 Aug 2011 14:11:01 +0530
From:	Raghavendra K T <raghukt@...ux.vnet.ibm.com>
To:	Michal Hocko <mhocko@...e.cz>
CC:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	Arend van Spriel <arend@...adcom.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	"David S. Miller" <davem@...emloft.net>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	Balbir Singh <bsingharora@...il.com>,
	"John W. Linville" <linville@...driver.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ying Han <yinghan@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
Subject: Re: [PATCH 0/2][cleanup] memcg: renaming of mem variable to memcg

On 08/11/2011 01:56 PM, Michal Hocko wrote:
> On Thu 11-08-11 13:46:19, Raghavendra K T wrote:
>> On 08/11/2011 01:23 PM, Michal Hocko wrote:
>>> On Wed 10-08-11 22:59:17, Raghavendra K T wrote:
>>>> Hi,
>>>>   This is the memcg cleanup patch for that was talked little ago to change the  "struct
>>>>   mem_cgroup *mem" variable to  "struct mem_cgroup *memcg".
>>>>
>>>>   The patch is though trivial, it is huge one.
>>>>   Testing : Compile tested with following configurations.
>>>>   1) CONFIG_CGROUP_MEM_RES_CTLR=y  CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
>>>>   2) CONFIG_CGROUP_MEM_RES_CTLR=y  CONFIG_CGROUP_MEM_RES_CTLR_SWAP=n
>>>>   3) CONFIG_CGROUP_MEM_RES_CTLR=n  CONFIG_CGROUP_MEM_RES_CTLR_SWAP=n
>>>
>>> How exactly have you tested? Compiled and compared before/after binaries
>>> (it shouldn't change, right)?
>> Yes, But idea was to ensure that both #ifdef and #else part are hit
>> during compilation, which could expose some corrections needed.
>
> I am not sure I understand. You have used different combinations of
> configuration to trigger all #ifdefs but that doesn't change anything on
> the fact that the code should be exactly same before and after your
> patch, right?
>
Yes you are right again. No change in the code after the patch.
It was just to exercise I have not missed any valid changes in both 
paths, and it does not break compilation.
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