From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 16 Nov 2007 19:18:44 +0900 From: KAMEZAWA Hiroyuki Subject: [RFC][PATCH] memory controller per zone patches take 2 [4/10] calculate mapped ratio for memory cgroup Message-Id: <20071116191844.319b2754.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20071116191107.46dd523a.kamezawa.hiroyu@jp.fujitsu.com> References: <20071116191107.46dd523a.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 Return-Path: To: KAMEZAWA Hiroyuki Cc: "linux-mm@kvack.org" , "yamamoto@valinux.co.jp" , "balbir@linux.vnet.ibm.com" , "containers@lists.osdl.org" List-ID: Define function for calculating mapped_ratio in memory cgroup. Signed-off-by: KAMEZAWA Hiroyuki include/linux/memcontrol.h | 11 ++++++++++- mm/memcontrol.c | 13 +++++++++++++ 2 files changed, 23 insertions(+), 1 deletion(-) Index: linux-2.6.24-rc2-mm1/mm/memcontrol.c =================================================================== --- linux-2.6.24-rc2-mm1.orig/mm/memcontrol.c +++ linux-2.6.24-rc2-mm1/mm/memcontrol.c @@ -423,6 +423,19 @@ void mem_cgroup_move_lists(struct page_c spin_unlock(&mem->lru_lock); } +/* + * Calculate mapped_ratio under memory controller. + */ +int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem) +{ + s64 total, rss; + + /* usage is recorded in bytes */ + total = mem->res.usage >> PAGE_SHIFT; + rss = mem_cgroup_read_stat(&mem->stat, MEM_CGROUP_STAT_RSS); + return (rss * 100) / total; +} + 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-rc2-mm1/include/linux/memcontrol.h =================================================================== --- linux-2.6.24-rc2-mm1.orig/include/linux/memcontrol.h +++ linux-2.6.24-rc2-mm1/include/linux/memcontrol.h @@ -61,6 +61,12 @@ extern int mem_cgroup_prepare_migration( extern void mem_cgroup_end_migration(struct page *page); extern void mem_cgroup_page_migration(struct page *page, struct page *newpage); +/* + * For memory reclaim. + */ +extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem); + + #else /* CONFIG_CGROUP_MEM_CONT */ static inline void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p) @@ -132,7 +138,10 @@ mem_cgroup_page_migration(struct page *p { } - +static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem) +{ + return 0; +} #endif /* CONFIG_CGROUP_MEM_CONT */ #endif /* _LINUX_MEMCONTROL_H */ -- 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