From: Mike Travis <travis@sgi.com>
Date: Fri, 16 Jan 2009 23:31:15 +0000 (-0800)
Subject: cpufreq: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write
X-Git-Tag: v2.6.30-rc1~3^2~6^2~18^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6eb714c63ed5bd663627f7dda8c4d5258f3b64ef;p=pandora-kernel.git

cpufreq: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write

Impact: use new work_on_cpu function to reduce stack usage

Replace the saving of current->cpus_allowed and set_cpus_allowed_ptr() with
a work_on_cpu function for drv_read() and drv_write().

Basically converts do_drv_{read,write} into "work_on_cpu" functions that
are now called by drv_read and drv_write.

Note: This patch basically reverts 50c668d6 which reverted 7503bfba, now
that the work_on_cpu() function is more stable.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Tested-by: Dieter Ries <clip2@gmx.de>
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: <cpufreq@vger.kernel.org>
---

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