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=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 0E916C433DF for ; Wed, 17 Jun 2020 00:45:26 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B771320739 for ; Wed, 17 Jun 2020 00:45:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="H4VsMaXh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B771320739 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2F0C26B0006; Tue, 16 Jun 2020 20:45:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 2A0106B0008; Tue, 16 Jun 2020 20:45:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1B6EF6B000A; Tue, 16 Jun 2020 20:45:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0005.hostedemail.com [216.40.44.5]) by kanga.kvack.org (Postfix) with ESMTP id 00C846B0006 for ; Tue, 16 Jun 2020 20:45:24 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 503971EE6 for ; Wed, 17 Jun 2020 00:45:24 +0000 (UTC) X-FDA: 76936860168.18.snake68_4e1339226e03 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin18.hostedemail.com (Postfix) with ESMTP id 2CEAA100ED9E0 for ; Wed, 17 Jun 2020 00:45:24 +0000 (UTC) X-HE-Tag: snake68_4e1339226e03 X-Filterd-Recvd-Size: 2138 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf39.hostedemail.com (Postfix) with ESMTP for ; Wed, 17 Jun 2020 00:45:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=3MBm7WMB0H7CjQ2iwLE0so+VVrKy1QQzygXiwshRKms=; b=H4VsMaXhl94mrmF1Esg6PoO8tD CYFRqh7FzyMwKICyQruEqENp0EKzIzhYc0aGi0Y/gao6TL3sx4Wh0dmlDfjr/P+lCyd13S7x+1UDk RYyEsRa7k4QhsPrs4Zj8VSBUJFuSqeVSyKE7wTgggJN/TWAAtZWG6BgGqJRKjwLgs9iB4oio2WD/U gY9bcwg3QFj4UStMGNrMxmnMFo4jC/UOVlSBrNC42FEp5GIbAhm8V4sZYfdFhvOcZDhQGBZLU92xP eQ9PY7MOdfcqGE7IA99wnoKTPL5kYVtCYxNol5D/gvZ7KvAxrlRmMwzGXPS8FwDuCYlsbtnbYUgba QLZw6dUQ==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlMCf-0003h4-PY; Wed, 17 Jun 2020 00:45:21 +0000 Date: Tue, 16 Jun 2020 17:45:21 -0700 From: Matthew Wilcox To: William Kucharski Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton Subject: Re: [PATCH] mm: ksize() should silently accept a NULL pointer Message-ID: <20200617004521.GE8681@bombadil.infradead.org> References: <20200616225409.4670-1-william.kucharski@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200616225409.4670-1-william.kucharski@oracle.com> X-Rspamd-Queue-Id: 2CEAA100ED9E0 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 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: On Tue, Jun 16, 2020 at 04:54:09PM -0600, William Kucharski wrote: > Other mm routines such as kfree() and kzfree() silently do the right > thing if passed a NULL pointer, so ksize() should do the same. > > Signed-off-by: William Kucharski Nice simplification. Reviewed-by: Matthew Wilcox (Oracle)