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>
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_MM_PAGE_IDLE_H
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#define _LINUX_MM_PAGE_IDLE_H
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#include <linux/bitops.h>
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#include <linux/page-flags.h>
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#include <linux/page_ext.h>
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#if defined(CONFIG_PAGE_IDLE_FLAG) && !defined(CONFIG_64BIT)
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/*
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* If there is not enough space to store Idle and Young bits in page flags, use
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* page ext flags instead.
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*/
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static inline bool folio_test_young(const struct folio *folio)
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{
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struct page_ext *page_ext = page_ext_get(&folio->page);
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bool page_young;
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if (unlikely(!page_ext))
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return false;
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page_young = test_bit(PAGE_EXT_YOUNG, &page_ext->flags);
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page_ext_put(page_ext);
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return page_young;
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}
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static inline void folio_set_young(struct folio *folio)
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{
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struct page_ext *page_ext = page_ext_get(&folio->page);
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if (unlikely(!page_ext))
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return;
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set_bit(PAGE_EXT_YOUNG, &page_ext->flags);
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page_ext_put(page_ext);
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}
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static inline bool folio_test_clear_young(struct folio *folio)
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{
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struct page_ext *page_ext = page_ext_get(&folio->page);
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bool page_young;
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if (unlikely(!page_ext))
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return false;
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page_young = test_and_clear_bit(PAGE_EXT_YOUNG, &page_ext->flags);
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page_ext_put(page_ext);
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return page_young;
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}
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static inline bool folio_test_idle(const struct folio *folio)
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{
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struct page_ext *page_ext = page_ext_get(&folio->page);
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bool page_idle;
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if (unlikely(!page_ext))
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return false;
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page_idle = test_bit(PAGE_EXT_IDLE, &page_ext->flags);
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page_ext_put(page_ext);
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return page_idle;
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}
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static inline void folio_set_idle(struct folio *folio)
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{
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struct page_ext *page_ext = page_ext_get(&folio->page);
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if (unlikely(!page_ext))
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return;
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set_bit(PAGE_EXT_IDLE, &page_ext->flags);
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page_ext_put(page_ext);
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}
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static inline void folio_clear_idle(struct folio *folio)
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{
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struct page_ext *page_ext = page_ext_get(&folio->page);
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if (unlikely(!page_ext))
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return;
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clear_bit(PAGE_EXT_IDLE, &page_ext->flags);
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page_ext_put(page_ext);
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}
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#endif /* CONFIG_PAGE_IDLE_FLAG && !64BIT */
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#endif /* _LINUX_MM_PAGE_IDLE_H */
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