From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id 34ABE6B0044 for ; Tue, 15 Dec 2009 18:31:27 -0500 (EST) Received: by yxe10 with SMTP id 10so437427yxe.12 for ; Tue, 15 Dec 2009 15:31:24 -0800 (PST) Date: Wed, 16 Dec 2009 08:25:29 +0900 From: Minchan Kim Subject: Re: [mmotm][PATCH 1/5] clean up mm_counter Message-Id: <20091216082529.8fc0d3c4.minchan.kim@barrios-desktop> In-Reply-To: <20091215181116.ee2c31f7.kamezawa.hiroyu@jp.fujitsu.com> References: <20091215180904.c307629f.kamezawa.hiroyu@jp.fujitsu.com> <20091215181116.ee2c31f7.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: KAMEZAWA Hiroyuki Cc: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "akpm@linux-foundation.org" , cl@linux-foundation.org, minchan.kim@gmail.com, Lee.Schermerhorn@hp.com List-ID: On Tue, 15 Dec 2009 18:11:16 +0900 KAMEZAWA Hiroyuki wrote: > From: KAMEZAWA Hiroyuki > > Now, per-mm statistics counter is defined by macro in sched.h > > This patch modifies it to > - defined in mm.h as inlinf functions > - use array instead of macro's name creation. > > This patch is for reducing patch size in future patch to modify > implementation of per-mm counter. > > Changelog: 2009/12/14 > - added a struct rss_stat instead of bare counters. > - use memset instead of for() loop. > - rewrite macros into static inline functions. > > Signed-off-by: KAMEZAWA Hiroyuki > --- > fs/proc/task_mmu.c | 4 - > include/linux/mm.h | 104 +++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/mm_types.h | 33 +++++++++----- > include/linux/sched.h | 54 ------------------------ > kernel/fork.c | 3 - > kernel/tsacct.c | 1 > mm/filemap_xip.c | 2 > mm/fremap.c | 2 > mm/memory.c | 56 +++++++++++++++---------- > mm/oom_kill.c | 4 - > mm/rmap.c | 10 ++-- > mm/swapfile.c | 2 > 12 files changed, 174 insertions(+), 101 deletions(-) > > Index: mmotm-2.6.32-Dec8-pth/include/linux/mm.h > =================================================================== > --- mmotm-2.6.32-Dec8-pth.orig/include/linux/mm.h > +++ mmotm-2.6.32-Dec8-pth/include/linux/mm.h > @@ -868,6 +868,110 @@ extern int mprotect_fixup(struct vm_area > */ > int __get_user_pages_fast(unsigned long start, int nr_pages, int write, > struct page **pages); > +/* > + * per-process(per-mm_struct) statistics. > + */ > +#if USE_SPLIT_PTLOCKS > +/* > + * The mm counters are not protected by its page_table_lock, > + * so must be incremented atomically. > + */ > +static inline void set_mm_counter(struct mm_struct *mm, int member, long value) > +{ > + atomic_long_set(&mm->rss_stat.count[member], value); > +} I can't find mm->rss_stat in this patch. Maybe it's part of next patch. It could break bisect. Otherwise, Looks good to me. Reviewed-by: Minchan Kim -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org