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author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2024-03-26 12:08:35 +0000 |
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committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2024-03-26 12:08:35 +0000 |
commit | f843bc9bc952bdeb21586ee921d29f5c2ae5a863 (patch) | |
tree | 05daf639c7add0e0fcb94f65143f10d7d87bd0b5 /include/linux/swapops.h | |
parent | 3c688a55831db128cc709396992886396d4f1654 (diff) | |
parent | 3d5a640ecf92e4c8d6e157849217b68984a819bc (diff) |
Merge branches 'sa1100-for-next' and 'unstable/sa11x0-asoc' into sa1100
Diffstat (limited to 'include/linux/swapops.h')
-rw-r--r-- | include/linux/swapops.h | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/include/linux/swapops.h b/include/linux/swapops.h index 3a451b7afcb3..bff1e8d97de0 100644 --- a/include/linux/swapops.h +++ b/include/linux/swapops.h @@ -332,15 +332,9 @@ static inline bool is_migration_entry_dirty(swp_entry_t entry) return false; } -extern void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep, - spinlock_t *ptl); extern void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd, unsigned long address); -#ifdef CONFIG_HUGETLB_PAGE -extern void __migration_entry_wait_huge(struct vm_area_struct *vma, - pte_t *ptep, spinlock_t *ptl); extern void migration_entry_wait_huge(struct vm_area_struct *vma, pte_t *pte); -#endif /* CONFIG_HUGETLB_PAGE */ #else /* CONFIG_MIGRATION */ static inline swp_entry_t make_readable_migration_entry(pgoff_t offset) { @@ -362,15 +356,10 @@ static inline int is_migration_entry(swp_entry_t swp) return 0; } -static inline void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep, - spinlock_t *ptl) { } static inline void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd, - unsigned long address) { } -#ifdef CONFIG_HUGETLB_PAGE -static inline void __migration_entry_wait_huge(struct vm_area_struct *vma, - pte_t *ptep, spinlock_t *ptl) { } -static inline void migration_entry_wait_huge(struct vm_area_struct *vma, pte_t *pte) { } -#endif /* CONFIG_HUGETLB_PAGE */ + unsigned long address) { } +static inline void migration_entry_wait_huge(struct vm_area_struct *vma, + pte_t *pte) { } static inline int is_writable_migration_entry(swp_entry_t entry) { return 0; @@ -404,7 +393,12 @@ static inline bool is_migration_entry_dirty(swp_entry_t entry) typedef unsigned long pte_marker; #define PTE_MARKER_UFFD_WP BIT(0) -#define PTE_MARKER_SWAPIN_ERROR BIT(1) +/* + * "Poisoned" here is meant in the very general sense of "future accesses are + * invalid", instead of referring very specifically to hardware memory errors. + * This marker is meant to represent any of various different causes of this. + */ +#define PTE_MARKER_POISONED BIT(1) #define PTE_MARKER_MASK (BIT(2) - 1) static inline swp_entry_t make_pte_marker_entry(pte_marker marker) @@ -432,15 +426,15 @@ static inline pte_t make_pte_marker(pte_marker marker) return swp_entry_to_pte(make_pte_marker_entry(marker)); } -static inline swp_entry_t make_swapin_error_entry(void) +static inline swp_entry_t make_poisoned_swp_entry(void) { - return make_pte_marker_entry(PTE_MARKER_SWAPIN_ERROR); + return make_pte_marker_entry(PTE_MARKER_POISONED); } -static inline int is_swapin_error_entry(swp_entry_t entry) +static inline int is_poisoned_swp_entry(swp_entry_t entry) { return is_pte_marker_entry(entry) && - (pte_marker_get(entry) & PTE_MARKER_SWAPIN_ERROR); + (pte_marker_get(entry) & PTE_MARKER_POISONED); } /* |