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v0.8.1
https://github.com/torvalds/linux
Revision 36be57ffe39e03aab9fbe857f70c7a6a15bd9e08 authored by Paul Jackson on 20 May 2006, 22:00:10 UTC, committed by Linus Torvalds on 21 May 2006, 19:59:18 UTC
Update the kernel/cpuset.c:cpuset_zone_allowed() comment.

The rule for when mm/page_alloc.c should call cpuset_zone_allowed()
was intended to be:

  Don't call cpuset_zone_allowed() if you can't sleep, unless you
  pass in the __GFP_HARDWALL flag set in gfp_flag, which disables
  the code that might scan up ancestor cpusets and sleep.

The explanation of this rule in the comment above cpuset_zone_allowed() was
stale, as a result of a restructuring of some __alloc_pages() code in
November 2005.

Rewrite that comment ...

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent bdd804f
Raw File
Tip revision: 36be57ffe39e03aab9fbe857f70c7a6a15bd9e08 authored by Paul Jackson on 20 May 2006, 22:00:10 UTC
[PATCH] cpuset: update cpuset_zones_allowed comment
Tip revision: 36be57f
cpufreq_performance.c
/*
 *  linux/drivers/cpufreq/cpufreq_performance.c
 *
 *  Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/cpufreq.h>
#include <linux/init.h>

#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "performance", msg)


static int cpufreq_governor_performance(struct cpufreq_policy *policy,
					unsigned int event)
{
	switch (event) {
	case CPUFREQ_GOV_START:
	case CPUFREQ_GOV_LIMITS:
		dprintk("setting to %u kHz because of event %u\n", policy->max, event);
		__cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);
		break;
	default:
		break;
	}
	return 0;
}

struct cpufreq_governor cpufreq_gov_performance = {
	.name		= "performance",
	.governor	= cpufreq_governor_performance,
	.owner		= THIS_MODULE,
};
EXPORT_SYMBOL(cpufreq_gov_performance);


static int __init cpufreq_gov_performance_init(void)
{
	return cpufreq_register_governor(&cpufreq_gov_performance);
}


static void __exit cpufreq_gov_performance_exit(void)
{
	cpufreq_unregister_governor(&cpufreq_gov_performance);
}


MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
MODULE_LICENSE("GPL");

fs_initcall(cpufreq_gov_performance_init);
module_exit(cpufreq_gov_performance_exit);
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