From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f72.google.com (mail-pg0-f72.google.com [74.125.83.72]) by kanga.kvack.org (Postfix) with ESMTP id A787F6B0038 for ; Fri, 19 Jan 2018 07:13:54 -0500 (EST) Received: by mail-pg0-f72.google.com with SMTP id v17so350086pgb.18 for ; Fri, 19 Jan 2018 04:13:54 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id p77si9120345pfa.247.2018.01.19.04.13.53 for (version=TLS1 cipher=AES128-SHA bits=128/128); Fri, 19 Jan 2018 04:13:53 -0800 (PST) Date: Fri, 19 Jan 2018 13:13:51 +0100 From: Michal Hocko Subject: Re: [RFC] Per file OOM badness Message-ID: <20180119121351.GW6584@dhcp22.suse.cz> References: <1516294072-17841-1-git-send-email-andrey.grodzovsky@amd.com> <20180118170006.GG6584@dhcp22.suse.cz> <20180118171355.GH6584@dhcp22.suse.cz> <87k1wfgcmb.fsf@anholt.net> <20180119082046.GL6584@dhcp22.suse.cz> <0cfaf256-928c-4cb8-8220-b8992592071b@amd.com> <20180119104058.GU6584@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Christian =?iso-8859-1?Q?K=F6nig?= Cc: Eric Anholt , Andrey Grodzovsky , linux-kernel@vger.kernel.org, linux-mm@kvack.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org On Fri 19-01-18 12:37:51, Christian Konig wrote: [...] > The per file descriptor badness is/was just the much easier approach to > solve the issue, because the drivers already knew which client is currently > using which buffer objects. > > I of course agree that file descriptors can be shared between processes and > are by themselves not killable. But at least for our graphics driven use > case I don't see much of a problem killing all processes when a file > descriptor is used by more than one at the same time. Ohh, I absolutely see why you have chosen this way for your particular usecase. I am just arguing that this would rather be more generic to be merged. If there is absolutely no other way around we can consider it but right now I do not see that all other options have been considered properly. Especially when the fd based approach is basically wrong for almost anybody else. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org