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=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,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 92CAFC2BA2B for ; Thu, 9 Apr 2020 01:38:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 36CC92087E for ; Thu, 9 Apr 2020 01:38:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 36CC92087E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id D4CDD8E000D; Wed, 8 Apr 2020 21:38:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CFCBD8E0006; Wed, 8 Apr 2020 21:38:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C13058E000D; Wed, 8 Apr 2020 21:38:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0183.hostedemail.com [216.40.44.183]) by kanga.kvack.org (Postfix) with ESMTP id AC4C78E0006 for ; Wed, 8 Apr 2020 21:38:16 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 50893A8F0 for ; Thu, 9 Apr 2020 01:38:16 +0000 (UTC) X-FDA: 76686606192.28.move12_2ae54eb1d8034 X-HE-Tag: move12_2ae54eb1d8034 X-Filterd-Recvd-Size: 1954 Received: from r3-20.sinamail.sina.com.cn (r3-20.sinamail.sina.com.cn [202.108.3.20]) by imf18.hostedemail.com (Postfix) with SMTP for ; Thu, 9 Apr 2020 01:38:14 +0000 (UTC) Received: from unknown (HELO localhost.localdomain)([114.246.227.120]) by sina.com with ESMTP id 5E8E7C7F0002D0F1; Thu, 9 Apr 2020 09:38:09 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com X-SMAIL-MID: 41527915073982 From: Hillf Danton To: Michal Hocko Cc: Peter Xu , Linux-MM , Michal Hocko , linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: WARNING in af_alg_make_sg Date: Thu, 9 Apr 2020 09:37:59 +0800 Message-Id: <20200409013759.14304-1-hdanton@sina.com> In-Reply-To: <20200408151213.GE66033@xz-x1> References: <000000000000f2bc9505a2c2b808@google.com> <20200408095849.15236-1-hdanton@sina.com> <20200408151213.GE66033@xz-x1> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000004, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, 8 Apr 2020 17:31:14 +0200 Michal Hocko wrote: >=20 > On Wed 08-04-20 11:12:13, Peter Xu wrote: > > >From 380003a56efc125565143c91ee6cefd7b3eba869 Mon Sep 17 00:00:00 20= 01 > > From: Hillf Danton > > Date: Wed, 8 Apr 2020 11:01:25 -0400 > > Subject: [PATCH] mm/gup: Let __get_user_pages_locked() return -EINTR = for fatal > > signal > >=20 > > __get_user_pages_locked() will return 0 instead of -EINTR after commi= t > > 4426e945df588 which added extra code to allow gup detect fatal signal > > faster. Restore that behavior. > >=20 > > CC: Thomas Gleixner > > Signed-off-by: Hillf Danton > > [peterx: write commit message] >=20 > Fixes: 4426e945df58 ("mm/gup: allow VM_FAULT_RETRY for multiple times") > > Signed-off-by: Peter Xu >=20 > Acked-by: Michal Hocko Thank you, Sir. Hillf