From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 390066B00FC for ; Tue, 25 Aug 2009 19:54:53 -0400 (EDT) Received: from fgwmail5.fujitsu.co.jp (fgwmail5.fujitsu.co.jp [192.51.44.35]) by fgwmail9.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id n7P2YJNi004173 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Tue, 25 Aug 2009 11:34:19 +0900 Received: from m3.gw.fujitsu.co.jp ([10.0.50.73]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id n7P2Xiij004894 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Tue, 25 Aug 2009 11:33:44 +0900 Received: from smail (m3 [127.0.0.1]) by outgoing.m3.gw.fujitsu.co.jp (Postfix) with ESMTP id BAA3145DE55 for ; Tue, 25 Aug 2009 11:33:43 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (s3.gw.fujitsu.co.jp [10.0.50.93]) by m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 883E845DE51 for ; Tue, 25 Aug 2009 11:33:43 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id 48F3D1DB803C for ; Tue, 25 Aug 2009 11:33:43 +0900 (JST) Received: from ml14.s.css.fujitsu.com (ml14.s.css.fujitsu.com [10.249.87.104]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id CF389EF8003 for ; Tue, 25 Aug 2009 11:33:42 +0900 (JST) Date: Tue, 25 Aug 2009 11:31:27 +0900 From: KAMEZAWA Hiroyuki Subject: [RFC][preview][patch 2/2] memcg: uncharge at truncate/unmap in batched manner Message-Id: <20090825113127.04d46f9c.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20090825112547.c2692965.kamezawa.hiroyu@jp.fujitsu.com> References: <20090825112547.c2692965.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" , "balbir@linux.vnet.ibm.com" , "nishimura@mxp.nes.nec.co.jp" List-ID: This patch adds hook to start batched uncharge into - unmap - truncate Signed-off-by: KAMEZAWA Hiroyuki --- Index: linux-2.6.31-rc7/mm/memory.c =================================================================== --- linux-2.6.31-rc7.orig/mm/memory.c +++ linux-2.6.31-rc7/mm/memory.c @@ -907,6 +907,7 @@ static unsigned long unmap_page_range(st details = NULL; BUG_ON(addr >= end); + mem_cgroup_uncharge_batch_start(); tlb_start_vma(tlb, vma); pgd = pgd_offset(vma->vm_mm, addr); do { @@ -919,6 +920,7 @@ static unsigned long unmap_page_range(st zap_work, details); } while (pgd++, addr = next, (addr != end && *zap_work > 0)); tlb_end_vma(tlb, vma); + mem_cgroup_uncharge_batch_end(); return addr; } Index: linux-2.6.31-rc7/mm/truncate.c =================================================================== --- linux-2.6.31-rc7.orig/mm/truncate.c +++ linux-2.6.31-rc7/mm/truncate.c @@ -231,6 +231,7 @@ void truncate_inode_pages_range(struct a pagevec_release(&pvec); break; } + mem_cgroup_uncharge_batch_start(); for (i = 0; i < pagevec_count(&pvec); i++) { struct page *page = pvec.pages[i]; @@ -250,6 +251,7 @@ void truncate_inode_pages_range(struct a unlock_page(page); } pagevec_release(&pvec); + mem_cgroup_uncharge_batch_end(); } } EXPORT_SYMBOL(truncate_inode_pages_range); @@ -291,6 +293,7 @@ unsigned long invalidate_mapping_pages(s pagevec_init(&pvec, 0); while (next <= end && pagevec_lookup(&pvec, mapping, next, PAGEVEC_SIZE)) { + mem_cgroup_uncharge_batch_start(); for (i = 0; i < pagevec_count(&pvec); i++) { struct page *page = pvec.pages[i]; pgoff_t index; @@ -322,6 +325,7 @@ unlock: break; } pagevec_release(&pvec); + mem_cgroup_uncharge_batch_end(); cond_resched(); } return ret; @@ -396,6 +400,7 @@ int invalidate_inode_pages2_range(struct while (next <= end && !wrapped && pagevec_lookup(&pvec, mapping, next, min(end - next, (pgoff_t)PAGEVEC_SIZE - 1) + 1)) { + mem_cgroup_uncharge_batch_start(); for (i = 0; i < pagevec_count(&pvec); i++) { struct page *page = pvec.pages[i]; pgoff_t page_index; @@ -445,6 +450,7 @@ int invalidate_inode_pages2_range(struct unlock_page(page); } pagevec_release(&pvec); + mem_cgroup_uncharge_batch_end(); cond_resched(); } return ret; -- 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