From: Ingo Molnar <mingo@elte.hu>
To: Mike Travis <travis@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/12] cpumask: reduce stack pressure from local/passed cpumask variables v2
Date: Wed, 26 Mar 2008 07:18:24 +0100 [thread overview]
Message-ID: <20080326061824.GB18301@elte.hu> (raw)
In-Reply-To: <20080326013811.569646000@polaris-admin.engr.sgi.com>
* Mike Travis <travis@sgi.com> wrote:
> Modify usage of cpumask_t variables to use pointers as much as
> possible.
hm, why is there no minimal patch against -git that does nothing but
introduces the new pointer based generic APIs (without using them) -
such as set_cpus_allowed_ptr(), etc.? Once that is upstream all the
remaining changes can trickle one arch and one subsystem at a time, and
once that's done, the old set_cpus_allowed() can be removed. This is far
more manageable than one large patch.
and the cpumask_of_cpu() change should be Kconfig based initially - once
all arches have moved to it (or even sooner) we can remove that.
Ingo
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next prev parent reply other threads:[~2008-03-26 6:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-26 1:38 Mike Travis
2008-03-26 1:38 ` [PATCH 01/12] cpumask: Convert cpumask_of_cpu to allocated array v2 Mike Travis
2008-03-26 1:38 ` [PATCH 02/12] cpumask: pass pointer to cpumask for set_cpus_allowed() v2 Mike Travis
2008-03-26 1:38 ` [PATCH 03/12] cpumask: reduce stack pressure in sched_affinity Mike Travis
2008-03-26 1:38 ` [PATCH 04/12] cpumask: pass cpumask by reference to acpi-cpufreq Mike Travis
2008-03-26 2:15 ` Dave Jones
2008-03-26 1:38 ` [PATCH 05/12] init: move large array from stack to _initdata section Mike Travis
2008-03-26 1:38 ` [PATCH 06/12] cpumask: create pointer to node_to_cpumask array element v2 Mike Travis
2008-03-26 1:38 ` [PATCH 07/12] cpumask: reduce stack usage in SD_x_INIT initializers Mike Travis
2008-03-26 1:38 ` [PATCH 08/12] cpumask: pass temp cpumask variables in init_sched_build_groups Mike Travis
2008-03-26 1:38 ` [PATCH 09/12] sched: fix memory leak in build_sched_domains Mike Travis
2008-03-26 1:38 ` [PATCH 10/12] cpumask: reduce stack usage " Mike Travis
2008-03-26 1:38 ` [PATCH 11/12] cpumask: reduce stack pressure in cpu_coregroup_map v2 Mike Travis
2008-03-26 1:38 ` [PATCH 12/12] cpu/node mask: reduce stack usage using MASK_NONE, MASK_ALL Mike Travis
2008-03-26 6:18 ` Ingo Molnar [this message]
2008-03-26 15:53 ` [PATCH 00/12] cpumask: reduce stack pressure from local/passed cpumask variables v2 Mike Travis
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