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=-12.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,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 B4E73C63697 for ; Fri, 13 Nov 2020 22:20:56 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 599C0206F9 for ; Fri, 13 Nov 2020 22:20:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="JaBlZxu7" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 599C0206F9 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A7D676B009E; Fri, 13 Nov 2020 17:20:55 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9DCB66B00A0; Fri, 13 Nov 2020 17:20:55 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 85A846B00A1; Fri, 13 Nov 2020 17:20:55 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0189.hostedemail.com [216.40.44.189]) by kanga.kvack.org (Postfix) with ESMTP id 4A2956B009E for ; Fri, 13 Nov 2020 17:20:55 -0500 (EST) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 019CF180AD807 for ; Fri, 13 Nov 2020 22:20:55 +0000 (UTC) X-FDA: 77480816070.09.cave95_1704d6f27312 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin09.hostedemail.com (Postfix) with ESMTP id D95CF180AD802 for ; Fri, 13 Nov 2020 22:20:54 +0000 (UTC) X-HE-Tag: cave95_1704d6f27312 X-Filterd-Recvd-Size: 4284 Received: from mail-qk1-f201.google.com (mail-qk1-f201.google.com [209.85.222.201]) by imf08.hostedemail.com (Postfix) with ESMTP for ; Fri, 13 Nov 2020 22:20:54 +0000 (UTC) Received: by mail-qk1-f201.google.com with SMTP id b191so7563534qkc.10 for ; Fri, 13 Nov 2020 14:20:54 -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=Yi0H/DT0iolgmo7NG/qMiO64up+Qc265jwkA+xu3tVM=; b=JaBlZxu7lA5jybjquVXOefu6xeeFogoBoXU1MliVu8hO4i5YwE0yAHxz10jpwLhOUG QZIoujH6ck0jbRoIZBq4jaoY1p7aSmkbWN63j+ihIJcWjrgLqYFrcHgb8SaxZ9IpWSsG VOoGkItovexEkREiFcSvUf6iTwO1D2zvHAHwp3Tn21E/jemeZR9ein17hD8X3olghKqF hV9KNqoNkDz0dNidKD/eBsaEhqtf0c7RYIgON5+4XvohOM1GeltX35tQ5aOnIAzpDebT Ly75REWb81h6l041aTpotOhJ5bbwNpW7TLTJdhFtMH+9I3OoDEcW4pgjVVfxTFyFlDin Raxw== 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=Yi0H/DT0iolgmo7NG/qMiO64up+Qc265jwkA+xu3tVM=; b=tKyH8SoOqgfQxQJCx1JM1qwQJj6Sax1wPTrGgw0xC5ptkVAq/uPdOxsI7VGmPQPco1 r2Z31blhoBBsthFRDLaxIl/GZZTHt777Efmdo2hQhlERGlexqXhzCigbRK19/j8gcmfW sL1pmwSdAJIovnNwbEUDrmfDE9KDR7LgtNU91mK4M4dhzfJPb/vDQerboSf6x/DWFECN MCZqQwwNqfhAJVNdEiChYZ5hFGYT1Pw8HasFauYsqCGg4/ShLiRQeU9JZ2Tg+AFOWHD8 DwOFhvjGlDSMtF+NxXO1/p9zXiktnmfz2dVoYT5/lVaizcqRQvU4ZiwELQHtnK9JFL+H SpEw== X-Gm-Message-State: AOAM533S1e1YgWjW6wFqabSSmPrpGRI7giRgtExcrLd0ZbHnIN37iNZn C1/uNaeCIrQFhdWhb6a9LfS1VIr3ayZxGPuu X-Google-Smtp-Source: ABdhPJy0Q043vk8cHOStNvQydNlkW0VoeWxy1kyCkq36QgHv0e9VO0VOgQiCfIHAjZb++EoHTDq0EEdvZhMlArtL X-Received: from andreyknvl3.muc.corp.google.com ([2a00:79e0:15:13:7220:84ff:fe09:7e9d]) (user=andreyknvl job=sendgmr) by 2002:a0c:fdcb:: with SMTP id g11mr4476840qvs.58.1605306053723; Fri, 13 Nov 2020 14:20:53 -0800 (PST) Date: Fri, 13 Nov 2020 23:20:06 +0100 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.29.2.299.gdc1121823c-goog Subject: [PATCH mm v3 16/19] kasan: clarify comment in __kasan_kfree_large From: Andrey Konovalov To: Andrew Morton Cc: Catalin Marinas , Will Deacon , Vincenzo Frascino , Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Marco Elver , 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" 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: Currently it says that the memory gets poisoned by page_alloc code. Clarify this by mentioning the specific callback that poisons the memory. Signed-off-by: Andrey Konovalov Reviewed-by: Dmitry Vyukov Reviewed-by: Marco Elver Link: https://linux-review.googlesource.com/id/I1334dffb69b87d7986fab88a1a039cc3ea764725 --- mm/kasan/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 821678a58ac6..42ba64fce8a3 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -453,5 +453,5 @@ void __kasan_kfree_large(void *ptr, unsigned long ip) { if (ptr != page_address(virt_to_head_page(ptr))) kasan_report_invalid_free(ptr, ip); - /* The object will be poisoned by page_alloc. */ + /* The object will be poisoned by kasan_free_pages(). */ } -- 2.29.2.299.gdc1121823c-goog