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| author |  Matthew Wilcox (Oracle) <willy@infradead.org>
| 2022-01-29 16:16:54 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org>
| 2022-03-21 13:01:35 -0400 |
| commit | 84fbbe21894bb9be8e16df408cbfbb9466fe396d (patch) | |
| tree | e908796cd1ee4ef4f693807f82ebaaa6a15f9b8f /include/linux | |
| parent | mm/rmap: Convert rmap_walk() to take a folio (diff) | |
| download | linux-84fbbe21894bb9be8e16df408cbfbb9466fe396d.tar.gz linux-84fbbe21894bb9be8e16df408cbfbb9466fe396d.tar.bz2 linux-84fbbe21894bb9be8e16df408cbfbb9466fe396d.zip | |
mm/rmap: Constify the rmap_walk_control argument
The rmap walking functions do not modify the rmap_walk_control, and
page_idle_clear_pte_refs() takes advantage of that to move construction
of the rmap_walk_control to compile time. This lets us remove an
unclean cast.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ksm.h | 4 | ||||
| -rw-r--r-- | include/linux/rmap.h | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/ksm.h b/include/linux/ksm.h index 0b4f17418f64..0630e545f4cb 100644 --- a/include/linux/ksm.h +++ b/include/linux/ksm.h @@ -51,7 +51,7 @@ static inline void ksm_exit(struct mm_struct *mm) struct page *ksm_might_need_to_copy(struct page *page, struct vm_area_struct *vma, unsigned long address); -void rmap_walk_ksm(struct folio *folio, struct rmap_walk_control *rwc); +void rmap_walk_ksm(struct folio *folio, const struct rmap_walk_control *rwc); void folio_migrate_ksm(struct folio *newfolio, struct folio *folio); #else /* !CONFIG_KSM */ @@ -79,7 +79,7 @@ static inline struct page *ksm_might_need_to_copy(struct page *page, } static inline void rmap_walk_ksm(struct folio *folio, - struct rmap_walk_control *rwc) + const struct rmap_walk_control *rwc) { } diff --git a/include/linux/rmap.h b/include/linux/rmap.h index a74d811c5b3f..17230c458341 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -292,8 +292,8 @@ struct rmap_walk_control { bool (*invalid_vma)(struct vm_area_struct *vma, void *arg); }; -void rmap_walk(struct folio *folio, struct rmap_walk_control *rwc); -void rmap_walk_locked(struct folio *folio, struct rmap_walk_control *rwc); +void rmap_walk(struct folio *folio, const struct rmap_walk_control *rwc); +void rmap_walk_locked(struct folio *folio, const struct rmap_walk_control *rwc); #else /* !CONFIG_MMU */ |