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 4831FC433F5 for ; Mon, 7 Feb 2022 15:44:13 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 2DC3A6B0078; Mon, 7 Feb 2022 10:44:12 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 28B746B007B; Mon, 7 Feb 2022 10:44:12 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 153F46B007D; Mon, 7 Feb 2022 10:44:12 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0130.hostedemail.com [216.40.44.130]) by kanga.kvack.org (Postfix) with ESMTP id 010CC6B0078 for ; Mon, 7 Feb 2022 10:44:11 -0500 (EST) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id A26FD1816F181 for ; Mon, 7 Feb 2022 15:44:11 +0000 (UTC) X-FDA: 79116405102.20.D89F91F Received: from mail-il1-f178.google.com (mail-il1-f178.google.com [209.85.166.178]) by imf24.hostedemail.com (Postfix) with ESMTP id F12FF180002 for ; Mon, 7 Feb 2022 15:44:10 +0000 (UTC) Received: by mail-il1-f178.google.com with SMTP id z4so11391179ilz.4 for ; Mon, 07 Feb 2022 07:44:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=from:to:cc:in-reply-to:references:subject:message-id:date :mime-version:content-transfer-encoding; bh=Ko7utT61KQM+vnI1dXkol9PWA1E2/Jgt+cxVzxGcXT0=; b=ZZY8gU8z+UUez1b9ohUVeo8KMZps07sOCWCFRkg/7ttY17GG/0HOFesNlLcrl8dBg5 fmeyfErMckJfmxBzHzRtDbiLWjhYWyaGjZKlXOE1Xor06BUGcSgGzMl5XYNxiWD2jwVL xFLy9t+BDldE8tUfzecxr61kUeex1AkbJsPpyu3VDGBO7nmsKlK35Cf9MHOTLj5DfUTY 3+nJoPhccbOyiSS7GgMfvXZ5QQnUQXjRRQnlO91K8X+/4ojxRlr0BGy7b/6r1dS9VJvY rKaImVlb3KpOPtvCZTqXNgLvrbLAtytM21Wmz0KnsKZqKJKBWWcgeNHBuSf5y1+pMDZJ 96RQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:in-reply-to:references:subject :message-id:date:mime-version:content-transfer-encoding; bh=Ko7utT61KQM+vnI1dXkol9PWA1E2/Jgt+cxVzxGcXT0=; b=1zCaHU+wo+ze0Bh9lSuacPt+etwRIY8O58qG8RyidkVFLSN3nq4i9uDZn8RNJhNftJ y8nj1vS4kRA8FMW/oRA8h7EBCXGpQY7YF0NtyToWNzcqph+sJrdBku5mpfMwD8k5al/m 2cntlTcCaUhDcuKkvH9DgHnWNqAiU0Eg7Yh4c0vcXgYELe/BQXZRHSjvd0b2i6XmFZw6 KqdkCk8zgACUPbd15UO2yiVrxZNbCRdaJ111TO++glWaSXvN0sphPxj7KKE/E3gu5Lwp bHDcffoRkc2bJ54sQfC9qRSHD4/016PPvKW4gnIP+6VhmJt0iK29eVHWzDN+jIpuhlJ4 hnrA== X-Gm-Message-State: AOAM532Fs0L6l1kDCShRhGUD0AMrWzWS5UoTi1Sf6ZCrmr+2WLQ/cnXQ mltZyvotaXUy7vDHI/EQeiQ9bA== X-Google-Smtp-Source: ABdhPJziZtkcrEPotcCiTBug6aK8Cq29kEOJlLvRQSssL2peEbGixAa0oVSVB4kXLrjuLtLWp+vp1Q== X-Received: by 2002:a05:6e02:20e1:: with SMTP id q1mr69357ilv.172.1644248650174; Mon, 07 Feb 2022 07:44:10 -0800 (PST) Received: from x1.localdomain ([207.135.234.126]) by smtp.gmail.com with ESMTPSA id u26sm6145534ior.52.2022.02.07.07.44.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Feb 2022 07:44:09 -0800 (PST) From: Jens Axboe To: Pavel Begunkov , Shakeel Butt Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, io-uring@vger.kernel.org, Andrew Morton In-Reply-To: <20220125051736.2981459-1-shakeelb@google.com> References: <20220125051736.2981459-1-shakeelb@google.com> Subject: Re: [PATCH] mm: io_uring: allow oom-killer from io_uring_setup Message-Id: <164424864739.20474.1005758721065319672.b4-ty@kernel.dk> Date: Mon, 07 Feb 2022 08:44:07 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: F12FF180002 X-Stat-Signature: 4xhd4t1gn9c145yhg616zcp1kbcr6pmz Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel-dk.20210112.gappssmtp.com header.s=20210112 header.b=ZZY8gU8z; dmarc=none; spf=pass (imf24.hostedemail.com: domain of axboe@kernel.dk designates 209.85.166.178 as permitted sender) smtp.mailfrom=axboe@kernel.dk X-Rspam-User: nil X-HE-Tag: 1644248650-75017 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000005, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, 24 Jan 2022 21:17:36 -0800, Shakeel Butt wrote: > On an overcommitted system which is running multiple workloads of > varying priorities, it is preferred to trigger an oom-killer to kill a > low priority workload than to let the high priority workload receiving > ENOMEMs. On our memory overcommitted systems, we are seeing a lot of > ENOMEMs instead of oom-kills because io_uring_setup callchain is using > __GFP_NORETRY gfp flag which avoids the oom-killer. Let's remove it and > allow the oom-killer to kill a lower priority job. >=20 > [...] Applied, thanks! [1/1] mm: io_uring: allow oom-killer from io_uring_setup commit: 0a3f1e0beacf6cc8ae5f846b0641c1df476e83d6 Best regards, --=20 Jens Axboe