From: David Rientjes <rientjes@google.com>
To: Christoph Lameter <clameter@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andrea Arcangeli <andrea@suse.de>, Rik van Riel <riel@redhat.com>,
linux-mm@kvack.org, pj@sgi.com
Subject: Re: [patch 3/8] oom: save zonelist pointer for oom killer calls
Date: Wed, 19 Sep 2007 13:37:13 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.0.9999.0709191330520.26978@chino.kir.corp.google.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0709191204590.2241@schroedinger.engr.sgi.com>
On Wed, 19 Sep 2007, Christoph Lameter wrote:
> Still think that a simple flag in the zone would be much easier to realize
> and would avoid the kzalloc.
>
That would require another member to be added to struct zone, probably a
spinlock_t that we would use as a spin_trylock() when in
try_set_zone_oom().
Or we could, as you mentioned before, turn all_unreclaimable into an
unsigned long and use it to set various bits. That works pretty nicely.
I'm wondering if this OOM killer serialization is going to end up as a
config option, though.
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next prev parent reply other threads:[~2007-09-19 20:37 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-19 18:24 [patch 0/8] oom killer updates David Rientjes
2007-09-19 18:24 ` [patch 1/8] oom: move prototypes to appropriate header file David Rientjes
2007-09-19 18:24 ` [patch 2/8] oom: move constraints to enum David Rientjes
2007-09-19 18:24 ` [patch 3/8] oom: save zonelist pointer for oom killer calls David Rientjes
2007-09-19 18:24 ` [patch 4/8] oom: serialize out of memory calls David Rientjes
2007-09-19 18:24 ` [patch 5/8] oom: add per-cpuset file oom_kill_asking_task David Rientjes
2007-09-19 18:24 ` [patch 6/8] oom: suppress extraneous stack and memory dump David Rientjes
2007-09-19 18:24 ` [patch 7/8] oom: only kill tasks that share zones with zonelist David Rientjes
2007-09-19 18:24 ` [patch 8/8] oom: do not check cpuset in badness scoring David Rientjes
2007-09-19 19:06 ` Christoph Lameter
2007-09-19 18:57 ` [patch 7/8] oom: only kill tasks that share zones with zonelist Christoph Lameter
2007-09-20 5:50 ` David Rientjes
2007-09-20 17:58 ` Christoph Lameter
2007-09-20 18:37 ` David Rientjes
2007-09-20 18:44 ` Christoph Lameter
2007-09-19 19:00 ` [patch 4/8] oom: serialize out of memory calls Christoph Lameter
2007-09-19 20:30 ` David Rientjes
2007-09-19 19:05 ` [patch 3/8] oom: save zonelist pointer for oom killer calls Christoph Lameter
2007-09-19 20:37 ` David Rientjes [this message]
2007-09-19 20:54 ` Christoph Lameter
2007-09-19 21:20 ` David Rientjes
2007-09-19 23:51 ` Tim Pepper
2007-09-20 5:43 ` David Rientjes
2007-09-20 17:56 ` Christoph Lameter
2007-09-19 19:01 ` [patch 1/8] oom: move prototypes to appropriate header file Christoph Lameter
2007-09-19 19:49 ` [patch 0/8] oom killer updates Paul Jackson
2007-09-19 20:24 ` David Rientjes
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