From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 14 Nov 2007 17:41:31 +0900 From: KAMEZAWA Hiroyuki Subject: [RFC][ for -mm] memory controller enhancements for NUMA [1/10] record nid/zid on page_cgroup Message-Id: <20071114174131.cf7c4aa6.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20071114173950.92857eaa.kamezawa.hiroyu@jp.fujitsu.com> References: <20071114173950.92857eaa.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" , "containers@lists.osdl.org" , "balbir@linux.vnet.ibm.com" , "yamamoto@valinux.co.jp" , hugh@veritas.com List-ID: This patch adds nid/zoneid value to page cgroup. This helps per-zone accounting for memory cgroup and reclaim routine. Signed-off-by: KAMEZAWA Hiroyuki mm/memcontrol.c | 6 ++++++ 1 file changed, 6 insertions(+) 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 @@ -131,6 +131,8 @@ struct page_cgroup { atomic_t ref_cnt; /* Helpful when pages move b/w */ /* mapped and cached states */ int flags; + short nid; + short zid; }; #define PAGE_CGROUP_FLAG_CACHE (0x1) /* charged as cache */ #define PAGE_CGROUP_FLAG_ACTIVE (0x2) /* page is active in this cgroup */ @@ -216,6 +218,10 @@ void page_assign_page_cgroup(struct page VM_BUG_ON(!page_cgroup_locked(page)); locked = (page->page_cgroup & PAGE_CGROUP_LOCK); page->page_cgroup = ((unsigned long)pc | locked); + if (pc) { + pc->nid = page_to_nid(page); + pc->zid = page_zonenum(page); + } } struct page_cgroup *page_get_page_cgroup(struct page *page) -- 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