cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

page_owner.h (2373B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __LINUX_PAGE_OWNER_H
      3#define __LINUX_PAGE_OWNER_H
      4
      5#include <linux/jump_label.h>
      6
      7#ifdef CONFIG_PAGE_OWNER
      8extern struct static_key_false page_owner_inited;
      9extern struct page_ext_operations page_owner_ops;
     10
     11extern void __reset_page_owner(struct page *page, unsigned short order);
     12extern void __set_page_owner(struct page *page,
     13			unsigned short order, gfp_t gfp_mask);
     14extern void __split_page_owner(struct page *page, unsigned int nr);
     15extern void __folio_copy_owner(struct folio *newfolio, struct folio *old);
     16extern void __set_page_owner_migrate_reason(struct page *page, int reason);
     17extern void __dump_page_owner(const struct page *page);
     18extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
     19					pg_data_t *pgdat, struct zone *zone);
     20
     21static inline void reset_page_owner(struct page *page, unsigned short order)
     22{
     23	if (static_branch_unlikely(&page_owner_inited))
     24		__reset_page_owner(page, order);
     25}
     26
     27static inline void set_page_owner(struct page *page,
     28			unsigned short order, gfp_t gfp_mask)
     29{
     30	if (static_branch_unlikely(&page_owner_inited))
     31		__set_page_owner(page, order, gfp_mask);
     32}
     33
     34static inline void split_page_owner(struct page *page, unsigned int nr)
     35{
     36	if (static_branch_unlikely(&page_owner_inited))
     37		__split_page_owner(page, nr);
     38}
     39static inline void folio_copy_owner(struct folio *newfolio, struct folio *old)
     40{
     41	if (static_branch_unlikely(&page_owner_inited))
     42		__folio_copy_owner(newfolio, old);
     43}
     44static inline void set_page_owner_migrate_reason(struct page *page, int reason)
     45{
     46	if (static_branch_unlikely(&page_owner_inited))
     47		__set_page_owner_migrate_reason(page, reason);
     48}
     49static inline void dump_page_owner(const struct page *page)
     50{
     51	if (static_branch_unlikely(&page_owner_inited))
     52		__dump_page_owner(page);
     53}
     54#else
     55static inline void reset_page_owner(struct page *page, unsigned short order)
     56{
     57}
     58static inline void set_page_owner(struct page *page,
     59			unsigned int order, gfp_t gfp_mask)
     60{
     61}
     62static inline void split_page_owner(struct page *page,
     63			unsigned short order)
     64{
     65}
     66static inline void folio_copy_owner(struct folio *newfolio, struct folio *folio)
     67{
     68}
     69static inline void set_page_owner_migrate_reason(struct page *page, int reason)
     70{
     71}
     72static inline void dump_page_owner(const struct page *page)
     73{
     74}
     75#endif /* CONFIG_PAGE_OWNER */
     76#endif /* __LINUX_PAGE_OWNER_H */