From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754230AbdEQOOM (ORCPT ); Wed, 17 May 2017 10:14:12 -0400 Received: from mail-pg0-f68.google.com ([74.125.83.68]:35512 "EHLO mail-pg0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754378AbdEQOMr (ORCPT ); Wed, 17 May 2017 10:12:47 -0400 From: Wei Yang To: cl@linux.com, penberg@kernel.org, rientjes@google.com, akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wei Yang Subject: [PATCH 2/6] mm/slub: not include cpu_partial data in cpu_slabs sysfs Date: Wed, 17 May 2017 22:11:42 +0800 Message-Id: <20170517141146.11063-3-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170517141146.11063-1-richard.weiyang@gmail.com> References: <20170517141146.11063-1-richard.weiyang@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There are four level slabs: CPU CPU_PARTIAL PARTIAL FULL In current implementation, cpu_slabs sysfs would give statistics including the first two levels. While there is another sysfs entry cpu_partial_slabs gives details on the second level slab statistics. Since each cpu has one slab for the first level, the current cpu_slabs output is easy to be calculated from cpu_partial_slabs. This patch removes the cpu_partial data in cpu_slabs for more specific slab statistics and leave room to retrieve objects and total objects on CPU level in the future. Signed-off-by: Wei Yang --- mm/slub.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 1100d2e75870..c7dddf22829d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -4762,19 +4762,6 @@ static ssize_t show_slab_objects(struct kmem_cache *s, total += x; nodes[node] += x; - - page = slub_percpu_partial_read_once(c); - if (page) { - node = page_to_nid(page); - if (flags & SO_TOTAL) - WARN_ON_ONCE(1); - else if (flags & SO_OBJECTS) - WARN_ON_ONCE(1); - else - x = page->pages; - total += x; - nodes[node] += x; - } } } -- 2.11.0