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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 C8335C433E0 for ; Tue, 22 Dec 2020 20:03:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BA4D20855 for ; Tue, 22 Dec 2020 20:03:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727201AbgLVUDl (ORCPT ); Tue, 22 Dec 2020 15:03:41 -0500 Received: from mail.kernel.org ([198.145.29.99]:46870 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726486AbgLVUDl (ORCPT ); Tue, 22 Dec 2020 15:03:41 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0850B23133; Tue, 22 Dec 2020 20:03:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608667405; bh=JM8QWrDg7sBMI5LsEMe0za0IAKlgysbCmniUFjiFTvI=; h=Date:From:To:Subject:In-Reply-To:From; b=nclu423SdrM8qiuSa+xzq5QFk/c3R0I3QHYtD77yKQ1vuKW7+zC5vE0I6w9m3IovR cYgZENXCZ4maG9OZlsPnIPWddDUKDH1jtjeU1VPZ88zcJnRghTd3e0UQ09CG8BFVCV MP8zc2ICFc4FuBY4/9kpWGKsAt/0wMUU1aOk+BAg= Date: Tue, 22 Dec 2020 12:03:24 -0800 From: Andrew Morton To: akpm@linux-foundation.org, andreyknvl@google.com, aryabinin@virtuozzo.com, Branislav.Rankov@arm.com, catalin.marinas@arm.com, dvyukov@google.com, elver@google.com, eugenis@google.com, glider@google.com, gor@linux.ibm.com, kevin.brodsky@arm.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, vincenzo.frascino@arm.com, will.deacon@arm.com Subject: [patch 57/60] kasan: clarify comment in __kasan_kfree_large Message-ID: <20201222200324.fNkB_D1hi%akpm@linux-foundation.org> In-Reply-To: <20201222115844.d30aaef7df6f5b120d3e0c3d@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Andrey Konovalov Subject: kasan: clarify comment in __kasan_kfree_large Currently it says that the memory gets poisoned by page_alloc code. Clarify this by mentioning the specific callback that poisons the memory. Link: https://lkml.kernel.org/r/1c8380fe0332a3bcc720fe29f1e0bef2e2974416.1606162397.git.andreyknvl@google.com Link: https://linux-review.googlesource.com/id/I1334dffb69b87d7986fab88a1a039cc3ea764725 Signed-off-by: Andrey Konovalov Reviewed-by: Dmitry Vyukov Reviewed-by: Marco Elver Tested-by: Vincenzo Frascino Cc: Alexander Potapenko Cc: Andrey Ryabinin Cc: Branislav Rankov Cc: Catalin Marinas Cc: Evgenii Stepanov Cc: Kevin Brodsky Cc: Vasily Gorbik Cc: Will Deacon Signed-off-by: Andrew Morton --- mm/kasan/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/kasan/common.c~kasan-clarify-comment-in-__kasan_kfree_large +++ a/mm/kasan/common.c @@ -446,5 +446,5 @@ void __kasan_kfree_large(void *ptr, unsi { 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(). */ } _