Cregit: Linux 6.12: page-states.c

Contributors: 5
Author	Tokens	Token Proportion	Commits	Commit Proportion
Martin Schwidefsky	63	62.38%	2	16.67%
Heiko Carstens	32	31.68%	6	50.00%
Linus Torvalds (pre-git)	3	2.97%	2	16.67%
Claudio Imbrenda	2	1.98%	1	8.33%
Greg Kroah-Hartman	1	0.99%	1	8.33%
Total	101		12

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright IBM Corp. 2008
 *
 * Guest page hinting for unused pages.
 *
 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
 */

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

int __bootdata_preserved(cmma_flag);

void arch_free_page(struct page *page, int order)
{
	if (!cmma_flag)
		return;
	__set_page_unused(page_to_virt(page), 1UL << order);
}

void arch_alloc_page(struct page *page, int order)
{
	if (!cmma_flag)
		return;
	if (cmma_flag < 2)
		__set_page_stable_dat(page_to_virt(page), 1UL << order);
	else
		__set_page_stable_nodat(page_to_virt(page), 1UL << order);
}