From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86178C4CEC7 for ; Sun, 15 Sep 2019 16:52:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5B6A3214D8 for ; Sun, 15 Sep 2019 16:52:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mddTC6Sg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726216AbfIOQwM (ORCPT ); Sun, 15 Sep 2019 12:52:12 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:43830 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725904AbfIOQwL (ORCPT ); Sun, 15 Sep 2019 12:52:11 -0400 Received: by mail-pg1-f193.google.com with SMTP id u72so18012748pgb.10 for ; Sun, 15 Sep 2019 09:52:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=zr0c07NjDmSH5Cw3kJRhGheNFiNUbd4oIPE+u9OeCKU=; b=mddTC6SgYO2Ab78FK7UUhuQd1kwETldDpr5BXxpYb+fc8mge2xlIGeYMxpVaUY7nvR uOTQyCbJmz0EEvUKAWI/cQrJjSTlpzkpPRdJKMKc7X1W7v2JE4nGXDqTFvy/O/ovzm97 lXhRGG1iv1ixHyBj1NEDWSxrw+enMNU4S8QHT60tz59ACuf4xK2fN9cwytHTUk9m9Trc A9N9+gwU962IUT+ELhMevHDxVxIR6Fwy8cEdahUQyI1PY8mFjHUEEp2gnuqyC/RkuiCQ z5PuGS651NaGM7xzH6WRd5AYpNubAX4kYNWeYgqGN7SAVL1BR0L1gDaUq+6gmu3kwFN4 1qfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=zr0c07NjDmSH5Cw3kJRhGheNFiNUbd4oIPE+u9OeCKU=; b=q6DAvRoSpy+/cZ1wObZRmNXzyLCB1ZaUV5ysmvxRU+XUismFR3ZxQehEZdqdm0eGRK 8eLq0w/Px3g2kFtEn3xGHWL8jdQsXf1QiSMwaI9/0MrCGnjbXobNo9F4aOOcmdputgZX rB2np/pKYBuQq0pOgsj/h3dx1mkixuniVrTtrefE6D0OpgTvgg5YDVTMmx3Nk3fpF8/V 3H3TqNivQGeDV0T7dUBT4fC1BPsoODBPrHwmsuIwu+PBYA2rXiPAZEXT46Dhfo2BK/h8 CnHeewIHBl/cCuE4g7gw6tY/L5WZIx5bV94p/Alg3viDyvKQwmyhvm85cP/R0kJUzHO7 sYIQ== X-Gm-Message-State: APjAAAVs37zKnLO5mxtiRBgoCblAt1IRaD2VgxUuLmr+Qk3w7gohVmDP Gqmzohpz3rvBzEjEn9P9rKA= X-Google-Smtp-Source: APXvYqxRn4ewzSZQkn/FFbl0qa7yiPu7uWCtjRCH+R5ndNnAWNrY7LsBcmNmfGEgVnhOaGKimOoOLg== X-Received: by 2002:a62:2d3:: with SMTP id 202mr69461597pfc.141.1568566331261; Sun, 15 Sep 2019 09:52:11 -0700 (PDT) Received: from localhost.localdomain.localdomain ([2408:823c:c11:160:b8c3:8577:bf2f:3]) by smtp.gmail.com with ESMTPSA id a4sm4383259pgq.6.2019.09.15.09.52.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Sep 2019 09:52:10 -0700 (PDT) From: Pengfei Li To: akpm@linux-foundation.org Cc: vbabka@suse.cz, cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, guro@fb.com, Pengfei Li Subject: [PATCH v4 2/7] mm, slab: Remove unused kmalloc_size() Date: Mon, 16 Sep 2019 00:51:11 +0800 Message-Id: <20190915165121.7237-3-lpf.vector@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190915165121.7237-1-lpf.vector@gmail.com> References: <20190915165121.7237-1-lpf.vector@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The size of kmalloc can be obtained from kmalloc_info[], so remove kmalloc_size() that will not be used anymore. Signed-off-by: Pengfei Li Acked-by: Vlastimil Babka Acked-by: Roman Gushchin --- include/linux/slab.h | 20 -------------------- mm/slab.c | 5 +++-- mm/slab_common.c | 5 ++--- 3 files changed, 5 insertions(+), 25 deletions(-) diff --git a/include/linux/slab.h b/include/linux/slab.h index 56c9c7eed34e..e773e5764b7b 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -557,26 +557,6 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags) return __kmalloc(size, flags); } -/* - * Determine size used for the nth kmalloc cache. - * return size or 0 if a kmalloc cache for that - * size does not exist - */ -static __always_inline unsigned int kmalloc_size(unsigned int n) -{ -#ifndef CONFIG_SLOB - if (n > 2) - return 1U << n; - - if (n == 1 && KMALLOC_MIN_SIZE <= 32) - return 96; - - if (n == 2 && KMALLOC_MIN_SIZE <= 64) - return 192; -#endif - return 0; -} - static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node) { #ifndef CONFIG_SLOB diff --git a/mm/slab.c b/mm/slab.c index c42b6211f42e..7bc4e90e1147 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1248,8 +1248,9 @@ void __init kmem_cache_init(void) */ kmalloc_caches[KMALLOC_NORMAL][INDEX_NODE] = create_kmalloc_cache( kmalloc_info[INDEX_NODE].name[KMALLOC_NORMAL], - kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS, - 0, kmalloc_size(INDEX_NODE)); + kmalloc_info[INDEX_NODE].size, + ARCH_KMALLOC_FLAGS, 0, + kmalloc_info[INDEX_NODE].size); slab_state = PARTIAL_NODE; setup_kmalloc_cache_index_table(); diff --git a/mm/slab_common.c b/mm/slab_common.c index 002e16673581..8b542cfcc4f2 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1239,11 +1239,10 @@ void __init create_kmalloc_caches(slab_flags_t flags) struct kmem_cache *s = kmalloc_caches[KMALLOC_NORMAL][i]; if (s) { - unsigned int size = kmalloc_size(i); - kmalloc_caches[KMALLOC_DMA][i] = create_kmalloc_cache( kmalloc_info[i].name[KMALLOC_DMA], - size, SLAB_CACHE_DMA | flags, 0, 0); + kmalloc_info[i].size, + SLAB_CACHE_DMA | flags, 0, 0); } } #endif -- 2.21.0