From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-f197.google.com (mail-pg1-f197.google.com [209.85.215.197]) by kanga.kvack.org (Postfix) with ESMTP id 1A0F76B0003 for ; Wed, 14 Nov 2018 17:20:27 -0500 (EST) Received: by mail-pg1-f197.google.com with SMTP id d3so6317315pgv.23 for ; Wed, 14 Nov 2018 14:20:27 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id v9-v6sor28175764pgr.13.2018.11.14.14.20.25 for (Google Transport Security); Wed, 14 Nov 2018 14:20:25 -0800 (PST) Date: Wed, 14 Nov 2018 14:20:22 -0800 (PST) From: David Rientjes Subject: Re: [PATCH] mm: mmap: remove verify_mm_writelocked() In-Reply-To: <20181108174856.10811-1-tiny.windzz@gmail.com> Message-ID: References: <20181108174856.10811-1-tiny.windzz@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Yangtao Li Cc: akpm@linux-foundation.org, mhocko@suse.com, dan.j.williams@intel.com, linux@dominikbrodowski.net, dave.hansen@linux.intel.com, dwmw@amazon.co.uk, mhocko@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org On Thu, 8 Nov 2018, Yangtao Li wrote: > We should get rid of this function. It no longer serves its purpose.This > is a historical artifact from 2005 where do_brk was called outside of > the core mm.We do have a proper abstraction in vm_brk_flags and that one > does the locking properly.So there is no need to use this function. > > Signed-off-by: Yangtao Li Acked-by: David Rientjes