Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
33 lines
678 B
C
33 lines
678 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright IBM Corp. 2008
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*
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* Guest page hinting for unused pages.
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*
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* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
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*/
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#include <linux/mm.h>
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#include <asm/page-states.h>
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#include <asm/sections.h>
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#include <asm/page.h>
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int __bootdata_preserved(cmma_flag);
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void arch_free_page(struct page *page, int order)
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{
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if (!cmma_flag)
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return;
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__set_page_unused(page_to_virt(page), 1UL << order);
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}
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void arch_alloc_page(struct page *page, int order)
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{
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if (!cmma_flag)
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return;
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if (cmma_flag < 2)
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__set_page_stable_dat(page_to_virt(page), 1UL << order);
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else
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__set_page_stable_nodat(page_to_virt(page), 1UL << order);
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}
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