Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp589499ybe; Wed, 11 Sep 2019 01:26:06 -0700 (PDT) X-Google-Smtp-Source: APXvYqxEcqw2fn2REOQnpKb961O7Fb2Ilql+hqEJV/nTrxfZWlDA1u1sFru+WRzXNkogPHbI4NDh X-Received: by 2002:aa7:da59:: with SMTP id w25mr33497904eds.143.1568190366010; Wed, 11 Sep 2019 01:26:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1568190365; cv=none; d=google.com; s=arc-20160816; b=GoKZcsIqoJikpUbKwSXXly3e30Odr5KTp2Mj8t0BdSBXEiJsg/qN38hi1XyrTqGYbh 6N7MUROWkIMyxssWIJbpmGPKsDJI3o+/ZjC9WfM3Bz9SU9h5lHZkRbeo/zA6U341Koyh T2yzZhPuhiYkPPTlaRmuxtBu1tdfoijvbuO7oMOKFBMCfGRmYxuhNq32fgE/DnGkHhWM g+THFfOgyjAVQfbic16Dy5eWKHhK5k6/1jHaCJ31BiN/iFepmNy7NGfoavFKsCTyhLuz X7kHfSwDPTUxynE6Vsq1wYzZABSykNHZXHx+4gptmohJSlgaBN3DALQ1Wxf7YzGPpRJB 4vjg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:to:subject; bh=uCU8VYXuKuYAhnvDu1/YA0f3FsJtBU0DjoHkxpFZcjo=; b=TjLy74EGXWVnnYHcnaA327b1UmmB9wU2Nb5w72PILQOhomijEG1i3RdFqtcTb2ZIt/ eHTdocF/DMaQdUV0WAykKHLVY2yWHpZiRcH1FkzjNZQTBfDgHYQ+86BaU5G3qRl2V6wv W+JVwF65YvXxI57J8DoXJIK7F0+tt/LMHJKnusgjvlMLKNboPColVKhemVetMpuPHQzJ eocSiD7mRocNZANIbRmOFNupJDNhQBQgvaSPAw3LGoTdMRovJDdMAEFmol+zd1cAZCtK UT3xy+QgWaMz4AwwSdHn2f+X5F+7gaAyaAPLGCTW2Gnvm71Bc2i73o3uK/4GPohoGEeR 38tQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w27si12434034edd.84.2019.09.11.01.25.41; Wed, 11 Sep 2019 01:26:05 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727216AbfIKIXu convert rfc822-to-8bit (ORCPT + 99 others); Wed, 11 Sep 2019 04:23:50 -0400 Received: from mail-wm1-f66.google.com ([209.85.128.66]:53360 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726018AbfIKIXu (ORCPT ); Wed, 11 Sep 2019 04:23:50 -0400 Received: by mail-wm1-f66.google.com with SMTP id q18so2318168wmq.3; Wed, 11 Sep 2019 01:23:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=7iC288htQQShWEzvGgwOYDZwehD1Nka894QH5xX/9cI=; b=bIbVJ5HE3gQwAEeK7mWeYFOcSozt87POGxCQbIw99379d/CS8fd7gOBXclZT7GirQs LWdvwP9jjdSwcjKBhXSKSfzTwdG0Ish3sE8Lm92vmhEnm7uNMCyh9dXl+3redKxjB01O GY2WhQdkZu8qo+ELm2+jWK8LRDHF8DKrYHPW0hMgmeOiktLLbNuKm5dH7x+KVpk/btU/ dHu5EqbspB4t5tN+XpuQKEAN6fi9EDPuIyS6G4BksWB+jDID3/jZ7SCb2bjcbw1t1/EO TPrDdhPY9y1YqqJkAzhVTL23VNHkJFDXrUfS9yARhahPK1vzfRtNJSeWej33Iy6MhRDK yDpQ== X-Gm-Message-State: APjAAAUn8vBYPcXEDyJzjyMm3dbVvFwmvuHlgaRfGKqU/9VTlUMZ4CPe /1HNL/UhNgV1UZ1lTAh0WMmmCjWjc7c= X-Received: by 2002:a1c:1d8d:: with SMTP id d135mr2959578wmd.7.1568190227313; Wed, 11 Sep 2019 01:23:47 -0700 (PDT) Received: from [10.0.4.250] (195-23-252-147.net.novis.pt. [195.23.252.147]) by smtp.gmail.com with ESMTPSA id s1sm30205463wrg.80.2019.09.11.01.23.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Sep 2019 01:23:46 -0700 (PDT) Subject: Re: [RFC PATCH] Add proc interface to set PF_MEMALLOC flags To: Mike Christie , axboe@kernel.dk, James.Bottomley@HansenPartnership.com, martin.petersen@oracle.com, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, linux-block@vger.kernel.org References: <20190909162804.5694-1-mchristi@redhat.com> From: Bart Van Assche Message-ID: <3e32b453-0350-0a09-9b1b-b0c49e2609df@acm.org> Date: Wed, 11 Sep 2019 09:23:45 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190909162804.5694-1-mchristi@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/9/19 5:28 PM, Mike Christie wrote: > There are several storage drivers like dm-multipath, iscsi, and nbd that > have userspace components that can run in the IO path. For example, > iscsi and nbd's userspace deamons may need to recreate a socket and/or > send IO on it, and dm-multipath's daemon multipathd may need to send IO > to figure out the state of paths and re-set them up. > > [ ... ] Should the linux-api mailing list be Cc-ed for a patch like this one? See also https://www.kernel.org/doc/man-pages/linux-api-ml.html. Thanks, Bart.