From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756170Ab2BOW5b (ORCPT ); Wed, 15 Feb 2012 17:57:31 -0500 Received: from mail-bk0-f46.google.com ([209.85.214.46]:56730 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751631Ab2BOW5Y (ORCPT ); Wed, 15 Feb 2012 17:57:24 -0500 Subject: [PATCH RFC 04/15] mm: unify inactive_list_is_low() To: linux-mm@kvack.org From: Konstantin Khlebnikov Cc: linux-kernel@vger.kernel.org Date: Thu, 16 Feb 2012 02:57:21 +0400 Message-ID: <20120215225721.22050.47829.stgit@zurg> In-Reply-To: <20120215224221.22050.80605.stgit@zurg> References: <20120215224221.22050.80605.stgit@zurg> User-Agent: StGit/0.15 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Unify memcg and non-memcg logic, always use exact counters from struct book. Signed-off-by: Konstantin Khlebnikov --- mm/vmscan.c | 30 ++++++++---------------------- 1 files changed, 8 insertions(+), 22 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index eddf617..61ffc8a 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1815,6 +1815,7 @@ static int inactive_anon_is_low(struct mem_cgroup_zone *mz, { unsigned long active, inactive; unsigned int ratio; + struct book *book; /* * If we don't have swap space, anonymous page deactivation @@ -1828,17 +1829,9 @@ static int inactive_anon_is_low(struct mem_cgroup_zone *mz, else ratio = mem_cgroup_inactive_ratio(sc->target_mem_cgroup); - if (scanning_global_lru(mz)) { - active = zone_page_state(mz->zone, NR_ACTIVE_ANON); - inactive = zone_page_state(mz->zone, NR_INACTIVE_ANON); - } else { - active = mem_cgroup_zone_nr_lru_pages(mz->mem_cgroup, - zone_to_nid(mz->zone), zone_idx(mz->zone), - BIT(LRU_ACTIVE_ANON)); - inactive = mem_cgroup_zone_nr_lru_pages(mz->mem_cgroup, - zone_to_nid(mz->zone), zone_idx(mz->zone), - BIT(LRU_INACTIVE_ANON)); - } + book = mem_cgroup_zone_book(mz->zone, mz->mem_cgroup); + active = book->pages_count[NR_ACTIVE_ANON]; + inactive = book->pages_count[NR_INACTIVE_ANON]; return inactive * ratio < active; } @@ -1867,18 +1860,11 @@ static inline int inactive_anon_is_low(struct mem_cgroup_zone *mz, static int inactive_file_is_low(struct mem_cgroup_zone *mz) { unsigned long active, inactive; + struct book *book; - if (scanning_global_lru(mz)) { - active = zone_page_state(mz->zone, NR_ACTIVE_FILE); - inactive = zone_page_state(mz->zone, NR_INACTIVE_FILE); - } else { - active = mem_cgroup_zone_nr_lru_pages(mz->mem_cgroup, - zone_to_nid(mz->zone), zone_idx(mz->zone), - BIT(LRU_ACTIVE_FILE)); - inactive = mem_cgroup_zone_nr_lru_pages(mz->mem_cgroup, - zone_to_nid(mz->zone), zone_idx(mz->zone), - BIT(LRU_INACTIVE_FILE)); - } + book = mem_cgroup_zone_book(mz->zone, mz->mem_cgroup); + active = book->pages_count[NR_ACTIVE_FILE]; + inactive = book->pages_count[NR_INACTIVE_FILE]; return inactive < active; }