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=-9.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 1646FC388F7 for ; Wed, 28 Oct 2020 17:05:59 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 741D02245A for ; Wed, 28 Oct 2020 17:05:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ku9A20X4"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="C3K8jt2E" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 741D02245A Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Y5EkJ/Dq7ruZcZkRTh0xewF3iDhp840Olt2yn08+A54=; b=Ku9A20X4g8ofW2kqhDN6YCvaI MM1vD5GKyFa8wZx9JTTwOFmC7tJ8bHwph7izj7+PtVndpkJ+aT4D1Ez5dLJTvePOxtYAQZ1q3Iiut +mHRr18eTxmipzq4e7RAHT6y66GZY4B9qdH1vShH0T/fKWqg7DB/iadxJ+SEq4tJd3B7u1GVcdKyt IUcgqyT5pEu4Lx9PRZUYoe3KP4eGmyJu/G7BstKecrzeUDh0+YOB5b2VFiid/m1eI0CqO1734LmGI kX6uYArJ71wyR1AB7Bog2toPS4cVYHhb+NVzgvyWbXEjllOEvw90H98ifcIRsP4+afiun8CSpJwmI LTdc4qVZQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXosC-0003qz-KE; Wed, 28 Oct 2020 17:04:32 +0000 Received: from mail-qt1-x843.google.com ([2607:f8b0:4864:20::843]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXosA-0003po-1S for linux-arm-kernel@lists.infradead.org; Wed, 28 Oct 2020 17:04:31 +0000 Received: by mail-qt1-x843.google.com with SMTP id s39so73249qtb.2 for ; Wed, 28 Oct 2020 10:04:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=AG7fb7d0C8MAPzIXBnKbPS8VY0VZhAzE0h3g8JJD9l8=; b=C3K8jt2EESSq9VBTNlezdB5lhUxguZOUeT8DjBvyG9TszljClDzOfG9DwkqrQSgiD7 TdYSZRXFVXdRK/2xcEgpMnOCr8pKQySnqXpr+6yWakTPSBKVaIyOgjz63BpmBDc1l6n/ oc3RCyWLuwsp8oo7N1h4IgYsKQRuTOUkgfdMjmVTJZeMDRNN8phA44WY8oAON1PE1cMP BAbHBlLZM5jUcM1Ao2QLQJTOwhNnrr/gyHpiRepcpk0VVVUcmlKrh7FE8sh4SrEjgKJz +ysNTbhkEbg/e6PDlHO25ydv/+rlaEHf2lCQqiXu7NSafJ/zd2YFqCLEUxXtZHd6J/3w wuYg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=AG7fb7d0C8MAPzIXBnKbPS8VY0VZhAzE0h3g8JJD9l8=; b=hlEjMwGH4boCh93PanKEql0Ze2FzUlVvBoArqtQK9uDJkx/Th2UOxy/I4l6ze53lPY ASYi/zJOxJSmcw/dv3eiBOE/J41NhQCX9ozVYX/UXBD6bd4o/bARaeCBWrdLnsn3HH0j +YrI94CF1Gwl1O44Qrf6BtT1kPiPAinz85HQ55x2/ZejkmBl6LnNCoUExHPr05hPvOy4 66rp9QCHCy6Z9l0AHFjE4ozfD9GV4JzVPMASrbHg8gjTI2i12TtB0mfcWhtaEf7Niw4X ZrX40JNDB1fI5bpcwgyTdUS1cF+vP0+PkSrYsB2SnvMg0+ShyaqZ6w19eEnpthsyRYBS KlGQ== X-Gm-Message-State: AOAM5301c8UMhc6bIfBy+YF784YxbMrUZNyTUvOAnYjVvvCJuuFoJjaI 6Lnbdjmly5munZc6wqF8IKKyLb7z4LKUpGwHWsTdYQ== X-Google-Smtp-Source: ABdhPJz1pGv64k+Jss9JKkY2ROsSjCftXLL5fqnH7sCV0rYWTeW7P4EWOFLz8h+PPFPgRTWwgCdIeRM/Iw+SD1q3zig= X-Received: by 2002:ac8:44ae:: with SMTP id a14mr8224570qto.67.1603904668207; Wed, 28 Oct 2020 10:04:28 -0700 (PDT) MIME-Version: 1.0 References: <6ed65cca58736301a1cacb539a6e672aecd7859d.1603372719.git.andreyknvl@google.com> In-Reply-To: <6ed65cca58736301a1cacb539a6e672aecd7859d.1603372719.git.andreyknvl@google.com> From: Dmitry Vyukov Date: Wed, 28 Oct 2020 18:04:16 +0100 Message-ID: Subject: Re: [PATCH RFC v2 21/21] kasan: clarify comment in __kasan_kfree_large To: Andrey Konovalov X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201028_130430_118166_81A27311 X-CRM114-Status: GOOD ( 18.66 ) 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: Marco Elver , Elena Petrova , Linux-MM , Catalin Marinas , Kevin Brodsky , Will Deacon , Branislav Rankov , kasan-dev , LKML , Kostya Serebryany , Alexander Potapenko , Linux ARM , Serban Constantinescu , Andrey Ryabinin , Andrew Morton , Vincenzo Frascino , 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 On Thu, Oct 22, 2020 at 3:20 PM Andrey Konovalov wrote: > > 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 > Link: https://linux-review.googlesource.com/id/I1334dffb69b87d7986fab88a1a039cc3ea764725 Reviewed-by: Dmitry Vyukov > --- > 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 3cd56861eb11..54af79aa8d3f 100644 > --- a/mm/kasan/common.c > +++ b/mm/kasan/common.c > @@ -445,5 +445,5 @@ 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(). */ > } > -- > 2.29.0.rc1.297.gfa9743e501-goog > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel