From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f42.google.com (mail-pa0-f42.google.com [209.85.220.42]) by kanga.kvack.org (Postfix) with ESMTP id 22AA86B0261 for ; Mon, 28 Mar 2016 01:27:22 -0400 (EDT) Received: by mail-pa0-f42.google.com with SMTP id td3so89740987pab.2 for ; Sun, 27 Mar 2016 22:27:22 -0700 (PDT) Received: from mail-pf0-x22e.google.com (mail-pf0-x22e.google.com. [2607:f8b0:400e:c00::22e]) by mx.google.com with ESMTPS id zo2si17526599pac.221.2016.03.27.22.27.21 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 27 Mar 2016 22:27:21 -0700 (PDT) Received: by mail-pf0-x22e.google.com with SMTP id 4so129069542pfd.0 for ; Sun, 27 Mar 2016 22:27:21 -0700 (PDT) From: js1304@gmail.com Subject: [PATCH 03/11] mm/slab: drain the free slab as much as possible Date: Mon, 28 Mar 2016 14:26:53 +0900 Message-Id: <1459142821-20303-4-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1459142821-20303-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1459142821-20303-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Christoph Lameter , Pekka Enberg , David Rientjes , Jesper Dangaard Brouer , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim From: Joonsoo Kim slabs_tofree() implies freeing all free slab. We can do it with just providing INT_MAX. Signed-off-by: Joonsoo Kim --- mm/slab.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index a5a205b..ba2eacf 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -888,12 +888,6 @@ static int init_cache_node_node(int node) return 0; } -static inline int slabs_tofree(struct kmem_cache *cachep, - struct kmem_cache_node *n) -{ - return (n->free_objects + cachep->num - 1) / cachep->num; -} - static void cpuup_canceled(long cpu) { struct kmem_cache *cachep; @@ -958,7 +952,7 @@ free_slab: n = get_node(cachep, node); if (!n) continue; - drain_freelist(cachep, n, slabs_tofree(cachep, n)); + drain_freelist(cachep, n, INT_MAX); } } @@ -1110,7 +1104,7 @@ static int __meminit drain_cache_node_node(int node) if (!n) continue; - drain_freelist(cachep, n, slabs_tofree(cachep, n)); + drain_freelist(cachep, n, INT_MAX); if (!list_empty(&n->slabs_full) || !list_empty(&n->slabs_partial)) { @@ -2280,7 +2274,7 @@ int __kmem_cache_shrink(struct kmem_cache *cachep, bool deactivate) check_irq_on(); for_each_kmem_cache_node(cachep, node, n) { - drain_freelist(cachep, n, slabs_tofree(cachep, n)); + drain_freelist(cachep, n, INT_MAX); ret += !list_empty(&n->slabs_full) || !list_empty(&n->slabs_partial); -- 1.9.1 -- 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