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Re: [patch -mm 6/9 v2] oom: deprecate oom_adj tunable

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From: Alan Cox
Subject: Re: [patch -mm 6/9 v2] oom: deprecate oom_adj tunable
Date: Monday, February 15, 2010 - 3:28 pm

On Mon, 15 Feb 2010 14:20:16 -0800 (PST)
David Rientjes <rientjes@google.com> wrote:


There are systems that rely on this feature. It's ABI, its sacred. We are
committed to it and it has users. That doesn't really detract from the
good/bad of the rest of the proposal, it's just one step we can't quite
make.

Alan
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Messages in current thread:
[patch -mm 0/9 v2] oom killer rewrite, David Rientjes, (Mon Feb 15, 3:19 pm)
[patch -mm 1/9 v2] oom: filter tasks not sharing the same ..., David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 2/9 v2] oom: sacrifice child with highest badne ..., David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 3/9 v2] oom: select task from tasklist for memp ..., David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 4/9 v2] oom: remove compulsory panic_on_oom mode, David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 5/9 v2] oom: badness heuristic rewrite, David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 6/9 v2] oom: deprecate oom_adj tunable, David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 7/9 v2] oom: replace sysctls with quick mode, David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 8/9 v2] oom: avoid oom killer for lowmem alloca ..., David Rientjes, (Mon Feb 15, 3:20 pm)
[patch -mm 9/9 v2] oom: remove unnecessary code and cleanup, David Rientjes, (Mon Feb 15, 3:20 pm)
Re: [patch -mm 6/9 v2] oom: deprecate oom_adj tunable, Alan Cox, (Mon Feb 15, 3:28 pm)
Re: [patch -mm 6/9 v2] oom: deprecate oom_adj tunable, David Rientjes, (Mon Feb 15, 3:35 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., KAMEZAWA Hiroyuki, (Mon Feb 15, 4:57 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Mon Feb 15, 5:00 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., David Rientjes, (Mon Feb 15, 5:10 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Mon Feb 15, 5:14 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., KAMEZAWA Hiroyuki, (Mon Feb 15, 5:21 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Mon Feb 15, 5:23 pm)
[patch] mm: add comment about deprecation of __GFP_NOFAIL, David Rientjes, (Mon Feb 15, 6:13 pm)
Re: [patch] mm: add comment about deprecation of __GFP_NOFAIL, KAMEZAWA Hiroyuki, (Mon Feb 15, 6:26 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., KOSAKI Motohiro, (Mon Feb 15, 10:32 pm)
Re: [patch -mm 1/9 v2] oom: filter tasks not sharing the s ..., Nick Piggin, (Mon Feb 15, 11:14 pm)
Re: [patch -mm 2/9 v2] oom: sacrifice child with highest b ..., Nick Piggin, (Mon Feb 15, 11:15 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., Nick Piggin, (Mon Feb 15, 11:20 pm)
Re: [patch -mm 7/9 v2] oom: replace sysctls with quick mode, Nick Piggin, (Mon Feb 15, 11:28 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., Nick Piggin, (Mon Feb 15, 11:44 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Mon Feb 15, 11:59 pm)
Re: [patch] mm: add comment about deprecation of __GFP_NOFAIL, David Rientjes, (Tue Feb 16, 12:03 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., Nick Piggin, (Tue Feb 16, 12:20 am)
Re: [patch] mm: add comment about deprecation of __GFP_NOFAIL, Nick Piggin, (Tue Feb 16, 12:23 am)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., David Rientjes, (Tue Feb 16, 12:29 am)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., David Rientjes, (Tue Feb 16, 12:41 am)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., Nick Piggin, (Tue Feb 16, 12:53 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 12:53 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., Nick Piggin, (Tue Feb 16, 1:08 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 1:10 am)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., David Rientjes, (Tue Feb 16, 1:25 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 1:42 am)
Re: [patch -mm 7/9 v2] oom: replace sysctls with quick mode, David Rientjes, (Tue Feb 16, 1:58 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 2:02 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 4:42 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 4:48 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 4:54 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 5:01 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 5:03 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., David Rientjes, (Tue Feb 16, 5:03 pm)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., David Rientjes, (Tue Feb 16, 5:21 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 5:31 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 5:41 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 5:54 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 6:03 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 6:58 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 7:13 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KOSAKI Motohiro, (Tue Feb 16, 7:19 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 7:23 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 7:28 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 7:34 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 7:37 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Tue Feb 16, 7:58 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Tue Feb 16, 8:21 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Wed Feb 17, 2:11 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., Nick Piggin, (Wed Feb 17, 2:52 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Wed Feb 17, 3:04 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., Daisuke Nishimura, (Sun Feb 21, 10:31 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Sun Feb 21, 11:15 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., Daisuke Nishimura, (Mon Feb 22, 4:42 am)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Mon Feb 22, 1:55 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., David Rientjes, (Mon Feb 22, 1:59 pm)
Re: [patch -mm 4/9 v2] oom: remove compulsory panic_on_oom ..., KAMEZAWA Hiroyuki, (Mon Feb 22, 4:51 pm)
Re: [patch -mm 3/9 v2] oom: select task from tasklist for ..., Balbir Singh, (Mon Feb 22, 11:31 pm)
Re: [patch -mm 3/9 v2] oom: select task from tasklist for ..., David Rientjes, (Tue Feb 23, 1:17 am)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., Balbir Singh, (Tue Feb 23, 4:24 am)
Re: [patch -mm 8/9 v2] oom: avoid oom killer for lowmem al ..., David Rientjes, (Tue Feb 23, 2:12 pm)