linux-kernel - Re: [-mm][PATCH 1/4] Setup the rlimit controller

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Message-ID: <481FD342.2040707@linux.vnet.ibm.com>
Date:	Tue, 06 May 2008 09:10:50 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-mm@...ck.org, skumar@...ux.vnet.ibm.com,
	yamamoto@...inux.co.jp, menage@...gle.com, lizf@...fujitsu.com,
	linux-kernel@...r.kernel.org, rientjes@...gle.com,
	xemul@...nvz.org, kamezawa.hiroyu@...fujitsu.com
Subject: Re: [-mm][PATCH 1/4] Setup the rlimit controller

Andrew Morton wrote:
> On Sun, 04 May 2008 03:07:36 +0530
> Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
> 
>> +	*tmp = ((*tmp + PAGE_SIZE) >> PAGE_SHIFT) << PAGE_SHIFT;
> 
> Whatever this is doing, it should not be doing it this way ;)
> 
> perhaps
> 
> 	*tmp = ALIGN(*tmp, PAGE_SIZE);
> 
> or even
> 
> 	*tmp = PAGE_ALIGN(*tmp);
> 
> ?
> 

Good point, thanks for catching this.

> 
> <looks at PAGE_ALIGN>
> 
> Each architecture implements its own version and they of course do it
> differently.  It's crying out for a consolidated implementation but we have
> no include/linux/page.h into which to consolidate it.

May be we can move this to asm-generic/page.h?


-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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