From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946550AbdEZBgp (ORCPT ); Thu, 25 May 2017 21:36:45 -0400 Received: from mail-pf0-f194.google.com ([209.85.192.194]:36274 "EHLO mail-pf0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946536AbdEZBgk (ORCPT ); Thu, 25 May 2017 21:36:40 -0400 Date: Fri, 26 May 2017 09:36:39 +0800 From: Wei Yang To: zhong jiang Cc: Wei Yang , akpm@linux-foundation.org, mhocko@suse.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/vmalloc: a slight change of compare target in __insert_vmap_area() Message-ID: <20170526013639.GA10727@WeideMacBook-Pro.local> Reply-To: Wei Yang References: <20170524100347.8131-1-richard.weiyang@gmail.com> <592649CC.8090702@huawei.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="AqsLC8rIMeq19msA" Content-Disposition: inline In-Reply-To: <592649CC.8090702@huawei.com> User-Agent: Mutt/1.7.2 (2016-11-26) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --AqsLC8rIMeq19msA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, May 25, 2017 at 11:04:44AM +0800, zhong jiang wrote: >I hit the overlap issue, but it is hard to reproduced. if you think it is safe. and the situation >is not happen. AFAIC, it is no need to add the code. > >if you insist on the point. Maybe VM_WARN_ON is a choice. > Do you have some log to show the overlap happens? --AqsLC8rIMeq19msA Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJZJ4anAAoJEKcLNpZP5cTdyxMP/R+BmCYvT4taaUp6yM2/y9U1 uyaf/GPO8VPtbOFcNtNJbn+gqsniFfS53+e49lhL3upBWoWvGG4NpYoqje2EmZHM fePgtFd2+3z6m0opd6Ha5J+Izn5CmWQuJgcza8iU9QD4594FsVZO/2059KfqIdbh cefe/YLkxJqIsdgGdBiQBgBehq9uI1LksBcRxIFSALwvhrS1rD9EDnbyePhtBvpA tNTIaAZVFK3vjMgQXXWLvhLUhqFJXwhfzbdCd5HmZyTyxKHQE/iBMLvnilKXAb8G bwmSmpSN2sRN1rAEzEG8w0eEHaUQ7O+cGgkuSsczwJGDaYW4NXG/vOtaXEqgWvAE wR3hTiRwUs4Mkz+4SPjts7gYEQ4ohrK0ngN1Sp+0ZjtB4snLJauttVa/DBK56w8A RYuZwd0WyK78PnhuUFCl0W8y/Lrp4rzWcS0xjEzZiOFAcYUJMIq8tZeIBacM/0iL M9RR5154QPV/wRfexJIb77yc9rbzg/3c/7CX4HZMOI7vrLMRWpaSKn2QwQAEfkMh sz8wq0am9CJTGFBTdoPZwDvEdFC3wyTAMqKGpleOwIy5PqFm6Jf2BzkMqrrNtur1 rlm9RG+XZvezueO3jHmiTm5sV9iey8QhISbu/48TS0IBSRpo8LjI9a+l79fwAYvU vD4rPw39xIo0rWoTrX/D =z15s -----END PGP SIGNATURE----- --AqsLC8rIMeq19msA--