Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755886AbXK0DBi (ORCPT ); Mon, 26 Nov 2007 22:01:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753999AbXK0DBb (ORCPT ); Mon, 26 Nov 2007 22:01:31 -0500 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:43462 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753830AbXK0DBa (ORCPT ); Mon, 26 Nov 2007 22:01:30 -0500 Date: Tue, 27 Nov 2007 12:04:42 +0900 From: KAMEZAWA Hiroyuki To: KAMEZAWA Hiroyuki Cc: Andrew Morton , "balbir@linux.vnet.ibm.com" , "yamamoto@valinux.co.jp" , "linux-mm@kvack.org" , "containers@lists.osdl.org" , LKML Subject: [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [6/10] remember reclaim priority in memory cgroup Message-Id: <20071127120442.895e4f1b.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20071127115525.e9779108.kamezawa.hiroyu@jp.fujitsu.com> References: <20071127115525.e9779108.kamezawa.hiroyu@jp.fujitsu.com> Organization: Fujitsu X-Mailer: Sylpheed 2.4.2 (GTK+ 2.10.11; i686-pc-mingw32) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2888 Lines: 93 Functions to remember reclaim priority per cgroup (as zone->prev_priority) Signed-off-by: KAMEZAWA Hiroyuki include/linux/memcontrol.h | 23 +++++++++++++++++++++++ mm/memcontrol.c | 20 ++++++++++++++++++++ 2 files changed, 43 insertions(+) Index: linux-2.6.24-rc3-mm1/mm/memcontrol.c =================================================================== --- linux-2.6.24-rc3-mm1.orig/mm/memcontrol.c 2007-11-27 11:19:51.000000000 +0900 +++ linux-2.6.24-rc3-mm1/mm/memcontrol.c 2007-11-27 11:22:14.000000000 +0900 @@ -132,6 +132,7 @@ */ spinlock_t lru_lock; unsigned long control_type; /* control RSS or RSS+Pagecache */ + int prev_priority; /* for recording reclaim priority */ /* * statistics. */ @@ -452,6 +453,25 @@ return (long) (active / (inactive + 1)); } +/* + * prev_priority control...this will be used in memory reclaim path. + */ +int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem) +{ + return mem->prev_priority; +} + +void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem, int priority) +{ + if (priority < mem->prev_priority) + mem->prev_priority = priority; +} + +void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, int priority) +{ + mem->prev_priority = priority; +} + unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, struct list_head *dst, unsigned long *scanned, int order, Index: linux-2.6.24-rc3-mm1/include/linux/memcontrol.h =================================================================== --- linux-2.6.24-rc3-mm1.orig/include/linux/memcontrol.h 2007-11-27 11:19:00.000000000 +0900 +++ linux-2.6.24-rc3-mm1/include/linux/memcontrol.h 2007-11-27 11:22:14.000000000 +0900 @@ -67,6 +67,11 @@ extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem); extern long mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem); +extern int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem); +extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem, + int priority); +extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, + int priority); #else /* CONFIG_CGROUP_MEM_CONT */ @@ -150,6 +155,24 @@ return 0; } +static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem, + int priority) +{ + return 0; +} + +static inline void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem, + int priority) +{ + return 0; +} + +static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, + int priority) +{ + return 0; +} + #endif /* CONFIG_CGROUP_MEM_CONT */ #endif /* _LINUX_MEMCONTROL_H */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/