linux-kernel - Re: [-mm][PATCH 2/4] Setup the memrlimit controller (v5)

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Message-ID: <4850E866.9030609@gmail.com>
Date:	Thu, 12 Jun 2008 11:12:06 +0200 (MEST)
From:	Andrea Righi <righi.andrea@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	balbir@...ux.vnet.ibm.com, linux-mm@...ck.org,
	skumar@...ux.vnet.ibm.com, yamamoto@...inux.co.jp,
	menage@...gle.com, lizf@...fujitsu.com,
	linux-kernel@...r.kernel.org, xemul@...nvz.org,
	kamezawa.hiroyu@...fujitsu.com
Subject: Re: [-mm][PATCH 2/4] Setup the memrlimit controller (v5)

Andrew Morton wrote:
>> --- a/include/linux/mm.h
>> +++ b/include/linux/mm.h
>> @@ -9,6 +9,7 @@
>>  #include <linux/list.h>
>>  #include <linux/mmzone.h>
>>  #include <linux/rbtree.h>
>> +#include <linux/kernel.h>
>>  #include <linux/prio_tree.h>
>>  #include <linux/debug_locks.h>
>>  #include <linux/mm_types.h>
>> @@ -41,6 +42,9 @@ extern unsigned long mmap_min_addr;
>>  
>>  #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n))
>>  
>> +/* to align the pointer to the (next) page boundary */
>> +#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
>> +
>>  /*
>>   * Linux kernel virtual memory manager primitives.
>>   * The idea being to have a "virtual" mm in the same way
> 
> You don't really need the #include <linux/kernel.h> there.  As long as
> all callsites which _use_ PAGE_ALIGN are including kernel.h via some
> means (and they surely will be) then things will work OK.

OK, testing without linux/kernel.h inclusion.

-Andrea

> 
> But it won't hurt.  We're already picking up kernel.h there via
> mmzone.h->spinlock.h and probably 100 other routes.  One more won't
> make a lot of difference ;)
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