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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 8689BC433E0 for ; Mon, 1 Feb 2021 19:46:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 440CE64E3C for ; Mon, 1 Feb 2021 19:46:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231346AbhBATpk (ORCPT ); Mon, 1 Feb 2021 14:45:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232227AbhBATox (ORCPT ); Mon, 1 Feb 2021 14:44:53 -0500 Received: from mail-lj1-x249.google.com (mail-lj1-x249.google.com [IPv6:2a00:1450:4864:20::249]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85BFBC061788 for ; Mon, 1 Feb 2021 11:43:51 -0800 (PST) Received: by mail-lj1-x249.google.com with SMTP id a5so2034138ljp.5 for ; Mon, 01 Feb 2021 11:43:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=vdSQ7N299ttJfkAji9JrIXHPqKuzBqRIB40yh5wvGsM=; b=Phj+HIZS3dxn0owHV5yLJaaC0AGJkEU7TfgxvzoS86S8PoZm4Rt1g+God+bs67EJc+ oAD4CGWKbkQlIIbCUNovOV1zLvhKFi5m+ZzhOblNupaIUd5ggX6TEZOlIrDz5XWmWLta JTZs7Uw7XmdRI9FLQF1x63YHp2a9KJzeObyFVOK0Yf424coQsCFXhiGhs5WSS+Wfdr5+ DV7O2YJKktRTJmORtVpVqwjlVS56TeRw4d0zGoTpGadYHfwg5/12VFuGKUvo3egw2HjJ JyuLK5fUm/yWENE6Hh73fMc8gwZMa7zXTtIL5S8EwT3PsxdE5NtR2aqDG2mEhfgqxwDS Cr8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=vdSQ7N299ttJfkAji9JrIXHPqKuzBqRIB40yh5wvGsM=; b=hAnnjQijqm8MsXwdplcZHoy/inN1kbj0441OCg4euBATLl9OuclMrQJYI0W0y88zF0 IyR9xpA1VpFbY/QvrElLgxko549XBRTnmf89jkC5k7pXC4usQ0AT54N2YY6c7aFuZpie PYw9j2ZvJtusxiIteATAi79lvVHPscywnEXwWVdVbvEj4KH0mij38vk+G9LDErBB/JjM 6rP4oHY1hFeqKS64iPio2fBdMgE9MF3X7AIp1ESpiNpgWw5V1xcnz4ftqERI4GRzSIFO s87ja5aj+BiMME/1iqxQYAXIHT5kLbKNFSyJAsuo+miTEW0JkxJEf3eOsUB0rMCKeWrj 6YQQ== X-Gm-Message-State: AOAM530X9JUjcMXlG05y/X6BrrNkpVBi9q0ExPaR6yLlngj3Hon2bn0t DWcFrHJAXfLx5hVdCp3RUTSu0e8fFQTElKbU X-Google-Smtp-Source: ABdhPJyTPeHvPlSg3evueEvog+d2Wbu3vFUyi7JAGczcnckPOWrvdcuYouS1E9V9e/DkjSKSFt3vDyjaDwqvcObf Sender: "andreyknvl via sendgmr" X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:7220:84ff:fe09:7e9d]) (user=andreyknvl job=sendgmr) by 2002:ac2:44b8:: with SMTP id c24mr9569637lfm.155.1612208629709; Mon, 01 Feb 2021 11:43:49 -0800 (PST) Date: Mon, 1 Feb 2021 20:43:28 +0100 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.30.0.365.g02bc693789-goog Subject: [PATCH 04/12] kasan: clean up setting free info in kasan_slab_free From: Andrey Konovalov To: Catalin Marinas , Vincenzo Frascino , Dmitry Vyukov , Alexander Potapenko , Marco Elver Cc: Andrew Morton , Will Deacon , Andrey Ryabinin , Peter Collingbourne , Evgenii Stepanov , Branislav Rankov , Kevin Brodsky , kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Put kasan_stack_collection_enabled() check and kasan_set_free_info() calls next to each other. The way this was previously implemented was a minor optimization that relied of the the fact that kasan_stack_collection_enabled() is always true for generic KASAN. The confusion that this brings outweights saving a few instructions. Signed-off-by: Andrey Konovalov --- mm/kasan/common.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/kasan/common.c b/mm/kasan/common.c index a7eb553c8e91..086bb77292b6 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -350,13 +350,11 @@ static bool ____kasan_slab_free(struct kmem_cache *cache, void *object, kasan_poison(object, cache->object_size, KASAN_KMALLOC_FREE); - if (!kasan_stack_collection_enabled()) - return false; - if ((IS_ENABLED(CONFIG_KASAN_GENERIC) && !quarantine)) return false; - kasan_set_free_info(cache, object, tag); + if (kasan_stack_collection_enabled()) + kasan_set_free_info(cache, object, tag); return kasan_quarantine_put(cache, object); } -- 2.30.0.365.g02bc693789-goog 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=-16.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 ADFF2C433E0 for ; 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charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Put kasan_stack_collection_enabled() check and kasan_set_free_info() calls next to each other. The way this was previously implemented was a minor optimization that relied of the the fact that kasan_stack_collection_enabled() is always true for generic KASAN. The confusion that this brings outweights saving a few instructions. Signed-off-by: Andrey Konovalov --- mm/kasan/common.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/kasan/common.c b/mm/kasan/common.c index a7eb553c8e91..086bb77292b6 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -350,13 +350,11 @@ static bool ____kasan_slab_free(struct kmem_cache *cache, void *object, kasan_poison(object, cache->object_size, KASAN_KMALLOC_FREE); - if (!kasan_stack_collection_enabled()) - return false; - if ((IS_ENABLED(CONFIG_KASAN_GENERIC) && !quarantine)) return false; - kasan_set_free_info(cache, object, tag); + if (kasan_stack_collection_enabled()) + kasan_set_free_info(cache, object, tag); return kasan_quarantine_put(cache, object); } -- 2.30.0.365.g02bc693789-goog 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 EFFB5C433DB for ; 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Mon, 01 Feb 2021 11:43:49 -0800 (PST) Date: Mon, 1 Feb 2021 20:43:28 +0100 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.30.0.365.g02bc693789-goog Subject: [PATCH 04/12] kasan: clean up setting free info in kasan_slab_free From: Andrey Konovalov To: Catalin Marinas , Vincenzo Frascino , Dmitry Vyukov , Alexander Potapenko , Marco Elver X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210201_144354_556712_1F9CD2AC X-CRM114-Status: GOOD ( 11.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Branislav Rankov , Andrey Konovalov , Kevin Brodsky , Will Deacon , linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, Andrey Ryabinin , Andrew Morton , Peter Collingbourne , Evgenii Stepanov Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Put kasan_stack_collection_enabled() check and kasan_set_free_info() calls next to each other. The way this was previously implemented was a minor optimization that relied of the the fact that kasan_stack_collection_enabled() is always true for generic KASAN. The confusion that this brings outweights saving a few instructions. Signed-off-by: Andrey Konovalov --- mm/kasan/common.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/kasan/common.c b/mm/kasan/common.c index a7eb553c8e91..086bb77292b6 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -350,13 +350,11 @@ static bool ____kasan_slab_free(struct kmem_cache *cache, void *object, kasan_poison(object, cache->object_size, KASAN_KMALLOC_FREE); - if (!kasan_stack_collection_enabled()) - return false; - if ((IS_ENABLED(CONFIG_KASAN_GENERIC) && !quarantine)) return false; - kasan_set_free_info(cache, object, tag); + if (kasan_stack_collection_enabled()) + kasan_set_free_info(cache, object, tag); return kasan_quarantine_put(cache, object); } -- 2.30.0.365.g02bc693789-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel