From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751548AbdJCSGh (ORCPT ); Tue, 3 Oct 2017 14:06:37 -0400 Received: from out0-206.mail.aliyun.com ([140.205.0.206]:35362 "EHLO out0-206.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751398AbdJCSGe (ORCPT ); Tue, 3 Oct 2017 14:06:34 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R281e4;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e02c03295;MF=yang.s@alibaba-inc.com;NM=1;PH=DS;RN=9;SR=0;TI=SMTPD_---.91xYa0q_1507053979; From: "Yang Shi" To: cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org, mhocko@kernel.org Cc: "Yang Shi" , , Subject: [PATCH 2/3] mm: slabinfo: dump CONFIG_SLABINFO Date: Wed, 04 Oct 2017 02:06:16 +0800 Message-Id: <1507053977-116952-3-git-send-email-yang.s@alibaba-inc.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1507053977-116952-1-git-send-email-yang.s@alibaba-inc.com> References: <1507053977-116952-1-git-send-email-yang.s@alibaba-inc.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org According to the discussion with Christoph [1], it sounds it is pointless to keep CONFIG_SLABINFO around. This patch just remove CONFIG_SLABINFO config option, but /proc/slabinfo is still available. [1] https://marc.info/?l=linux-kernel&m=150695909709711&w=2 Signed-off-by: Yang Shi --- init/Kconfig | 6 ------ mm/memcontrol.c | 2 -- mm/slab.c | 2 -- mm/slab_common.c | 3 --- mm/slub.c | 2 -- 5 files changed, 15 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 78cb246..5d3c80a 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1657,12 +1657,6 @@ config HAVE_GENERIC_DMA_COHERENT bool default n -config SLABINFO - bool - depends on PROC_FS - depends on SLAB || SLUB_DEBUG - default y - config RT_MUTEXES bool diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 15af3da..0a8ed72 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -4039,7 +4039,6 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of, .write = mem_cgroup_reset, .read_u64 = mem_cgroup_read_u64, }, -#ifdef CONFIG_SLABINFO { .name = "kmem.slabinfo", .seq_start = memcg_slab_start, @@ -4047,7 +4046,6 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of, .seq_stop = memcg_slab_stop, .seq_show = memcg_slab_show, }, -#endif { .name = "kmem.tcp.limit_in_bytes", .private = MEMFILE_PRIVATE(_TCP, RES_LIMIT), diff --git a/mm/slab.c b/mm/slab.c index 04dec48..5743a51 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -4096,7 +4096,6 @@ static void cache_reap(struct work_struct *w) schedule_delayed_work(work, round_jiffies_relative(REAPTIMEOUT_AC)); } -#ifdef CONFIG_SLABINFO void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo) { unsigned long active_objs, num_objs, active_slabs; @@ -4404,7 +4403,6 @@ static int __init slab_proc_init(void) return 0; } module_init(slab_proc_init); -#endif #ifdef CONFIG_HARDENED_USERCOPY /* diff --git a/mm/slab_common.c b/mm/slab_common.c index 904a83b..5520a22 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1175,8 +1175,6 @@ void cache_random_seq_destroy(struct kmem_cache *cachep) } #endif /* CONFIG_SLAB_FREELIST_RANDOM */ -#ifdef CONFIG_SLABINFO - #ifdef CONFIG_SLAB #define SLABINFO_RIGHTS (S_IWUSR | S_IRUSR) #else @@ -1346,7 +1344,6 @@ static int __init slab_proc_init(void) return 0; } module_init(slab_proc_init); -#endif /* CONFIG_SLABINFO */ static __always_inline void *__do_krealloc(const void *p, size_t new_size, gfp_t flags) diff --git a/mm/slub.c b/mm/slub.c index 163352c..74a8776 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -5851,7 +5851,6 @@ static int __init slab_sysfs_init(void) /* * The /proc/slabinfo ABI */ -#ifdef CONFIG_SLABINFO void get_slabinfo(struct kmem_cache *s, struct slabinfo *sinfo) { unsigned long nr_slabs = 0; @@ -5883,4 +5882,3 @@ ssize_t slabinfo_write(struct file *file, const char __user *buffer, { return -EIO; } -#endif /* CONFIG_SLABINFO */ -- 1.8.3.1