From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx173.postini.com [74.125.245.173]) by kanga.kvack.org (Postfix) with SMTP id 062B16B0031 for ; Mon, 16 Sep 2013 15:00:32 -0400 (EDT) Received: by mail-ye0-f201.google.com with SMTP id q3so529323yen.4 for ; Mon, 16 Sep 2013 12:00:32 -0700 (PDT) From: Greg Thelen Subject: [PATCH 1/2 v4] memcg: refactor mem_control_numa_stat_show() Date: Mon, 16 Sep 2013 12:00:22 -0700 Message-Id: <1379358023-3093-1-git-send-email-gthelen@google.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton , Johannes Weiner , Michal Hocko , Balbir Singh , KAMEZAWA Hiroyuki Cc: hughd@google.com, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Greg Thelen , Ying Han Refactor mem_control_numa_stat_show() to use a new stats structure for smaller and simpler code. This consolidates nearly identical code. text data bss dec hex filename 8,137,679 1,703,496 1,896,448 11,737,623 b31a17 vmlinux.before 8,136,911 1,703,496 1,896,448 11,736,855 b31717 vmlinux.after Signed-off-by: Greg Thelen Signed-off-by: Ying Han --- Changelog since v3: - Use ARRAY_SIZE(stats) rather than array terminator. - rebased to latest linus/master (d8efd82) to incorporate 182446d08 "cgroup: pass around cgroup_subsys_state instead of cgroup in file methods". mm/memcontrol.c | 58 +++++++++++++++++++++++---------------------------------- 1 file changed, 23 insertions(+), 35 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index d5ff3ce..5806eea 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -5179,45 +5179,33 @@ static int mem_cgroup_move_charge_write(struct cgroup_subsys_state *css, static int memcg_numa_stat_show(struct cgroup_subsys_state *css, struct cftype *cft, struct seq_file *m) { + struct numa_stat { + const char *name; + unsigned int lru_mask; + }; + + static const struct numa_stat stats[] = { + { "total", LRU_ALL }, + { "file", LRU_ALL_FILE }, + { "anon", LRU_ALL_ANON }, + { "unevictable", BIT(LRU_UNEVICTABLE) }, + }; + const struct numa_stat *stat; int nid; - unsigned long total_nr, file_nr, anon_nr, unevictable_nr; - unsigned long node_nr; + unsigned long nr; struct mem_cgroup *memcg = mem_cgroup_from_css(css); - total_nr = mem_cgroup_nr_lru_pages(memcg, LRU_ALL); - seq_printf(m, "total=%lu", total_nr); - for_each_node_state(nid, N_MEMORY) { - node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid, LRU_ALL); - seq_printf(m, " N%d=%lu", nid, node_nr); - } - seq_putc(m, '\n'); - - file_nr = mem_cgroup_nr_lru_pages(memcg, LRU_ALL_FILE); - seq_printf(m, "file=%lu", file_nr); - for_each_node_state(nid, N_MEMORY) { - node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid, - LRU_ALL_FILE); - seq_printf(m, " N%d=%lu", nid, node_nr); - } - seq_putc(m, '\n'); - - anon_nr = mem_cgroup_nr_lru_pages(memcg, LRU_ALL_ANON); - seq_printf(m, "anon=%lu", anon_nr); - for_each_node_state(nid, N_MEMORY) { - node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid, - LRU_ALL_ANON); - seq_printf(m, " N%d=%lu", nid, node_nr); - } - seq_putc(m, '\n'); - - unevictable_nr = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_UNEVICTABLE)); - seq_printf(m, "unevictable=%lu", unevictable_nr); - for_each_node_state(nid, N_MEMORY) { - node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid, - BIT(LRU_UNEVICTABLE)); - seq_printf(m, " N%d=%lu", nid, node_nr); + for (stat = stats; stat < stats + ARRAY_SIZE(stats); stat++) { + nr = mem_cgroup_nr_lru_pages(memcg, stat->lru_mask); + seq_printf(m, "%s=%lu", stat->name, nr); + for_each_node_state(nid, N_MEMORY) { + nr = mem_cgroup_node_nr_lru_pages(memcg, nid, + stat->lru_mask); + seq_printf(m, " N%d=%lu", nid, nr); + } + seq_putc(m, '\n'); } - seq_putc(m, '\n'); + return 0; } #endif /* CONFIG_NUMA */ -- 1.8.4 -- 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