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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2BD02ECAAA2 for ; Fri, 26 Aug 2022 01:06:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 76ECD6B0074; Thu, 25 Aug 2022 21:06:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 71E06940007; Thu, 25 Aug 2022 21:06:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5E6356B0078; Thu, 25 Aug 2022 21:06:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 50B616B0074 for ; Thu, 25 Aug 2022 21:06:17 -0400 (EDT) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 290D1C0567 for ; Fri, 26 Aug 2022 01:06:17 +0000 (UTC) X-FDA: 79839952794.05.AD613E2 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf01.hostedemail.com (Postfix) with ESMTP id BFC9540005 for ; Fri, 26 Aug 2022 01:06:16 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C41D361DBD; Fri, 26 Aug 2022 01:06:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BC6A3C433D7; Fri, 26 Aug 2022 01:06:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1661475975; bh=d+98VSFWBdfWJMrbnOZB0Q9wyRzkSjBnOtX3niQhhNM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=UYYng0uKWqeMXZes0EoqtqNE0PRFP00QV+xYn4CppxiKryt1R9XWFQ6V+rzzu2ZEu m7sw0dirl4hQxTSVLUGltNy3JE8Owxp10GiVavucdJJC9IYe/WurEl3SxOusZDh3DY MrsTVJloknfwVhkw/4Dz/TxpeD0kTrUWKgGii1tM= Date: Thu, 25 Aug 2022 18:06:14 -0700 From: Andrew Morton To: Liam Howlett Cc: "maple-tree@lists.infradead.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Stephen Rothwell , Linux Next Mailing List , Mark Brown , Will Deacon , Catalin Marinas Subject: Re: [PATCH] mm/mprotect: Fix maple tree start address in do_mprotect_pkey() Message-Id: <20220825180614.0ea05648f898bfa17f95a83c@linux-foundation.org> In-Reply-To: <20220825202939.3041660-1-Liam.Howlett@oracle.com> References: <20220825202939.3041660-1-Liam.Howlett@oracle.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit ARC-Authentication-Results: i=1; imf01.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=UYYng0uK; spf=pass (imf01.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1661475976; a=rsa-sha256; cv=none; b=f+1V9klBjUQjPisFK9o5vKSu7OpZFqhIOcVqdy66DtBh7S4WZtFEJRzql+MnQlgJ+AYD1i tY9FRJW73f+mzz8/ur4Ji09xdo5XkWvBVuxhBEPkv6/dlwWiHc9KMEHQGTdm2GyBipE9YM KEYEjRBTSta2oc1NLSBec3VvYvlF8BY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1661475976; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=d+98VSFWBdfWJMrbnOZB0Q9wyRzkSjBnOtX3niQhhNM=; b=dac72KY9/fvUtl2skxcwm68L4vC9l3bG1tQcNoj/Gz7qYhlW6v6JjEkowWrTK8l2TTtJOc 4xWi6K7ly8rd7+0OnYjDISy7wUt2fdszA6ielug83ZEAY1TVPLxIWkEqkfKoK3gN5H61as rjKwLTTxd1IWz3g0C4cm5451pLCXMXU= X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: BFC9540005 X-Rspam-User: X-Stat-Signature: 9fmdt4b1mxmhzczx16yyxqj5b93poek6 Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=UYYng0uK; spf=pass (imf01.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-HE-Tag: 1661475976-53464 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 Thu, 25 Aug 2022 20:30:24 +0000 Liam Howlett wrote: > Use the untagged_addr() instead of the address passed into the function. What are the runtime effects of this fix?