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v0.5.2
https://github.com/torvalds/linux
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Tip revision: 0b07194bb55ed836c2cc7c22e866b87a14681984 authored by Linus Torvalds on 29 October 2017, 20:58:38 UTC
Linux 4.14-rc7
Tip revision: 0b07194
suspend.c
/*
 * Suspend support specific for power.
 *
 * Distribute under GPLv2
 *
 * Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
 * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
 */

#include <linux/mm.h>
#include <asm/page.h>
#include <asm/sections.h>

/*
 *	pfn_is_nosave - check if given pfn is in the 'nosave' section
 */

int pfn_is_nosave(unsigned long pfn)
{
	unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
	unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
	return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
}
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