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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-09-02 20:46:15 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:02:48 -0700 |
| commit | c9edc242811d4c4b939b283f4f40b89f9c5b3b5a (patch) | |
| tree | 9ac8298c3d6e062743f780e6bcca010b3be27686 /mm/swap.h | |
| parent | 0d698e257241436e01182508d93fc290987eb37d (diff) | |
| download | linux-c9edc242811d4c4b939b283f4f40b89f9c5b3b5a.tar.bz2 | |
swap: add swap_cache_get_folio()
Convert lookup_swap_cache() into swap_cache_get_folio() and add a
lookup_swap_cache() wrapper around it.
[akpm@linux-foundation.org: add CONFIG_SWAP=n stub for swap_cache_get_folio()]
Link: https://lkml.kernel.org/r/20220902194653.1739778-20-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/swap.h')
| -rw-r--r-- | mm/swap.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/swap.h b/mm/swap.h index 29e38f3d82d0..ccd8d9a9ad36 100644 --- a/mm/swap.h +++ b/mm/swap.h @@ -39,6 +39,8 @@ void __delete_from_swap_cache(struct folio *folio, void delete_from_swap_cache(struct folio *folio); void clear_shadow_from_swap_cache(int type, unsigned long begin, unsigned long end); +struct folio *swap_cache_get_folio(swp_entry_t entry, + struct vm_area_struct *vma, unsigned long addr); struct page *lookup_swap_cache(swp_entry_t entry, struct vm_area_struct *vma, unsigned long addr); @@ -99,6 +101,12 @@ static inline int swap_writepage(struct page *p, struct writeback_control *wbc) return 0; } +static inline struct folio *swap_cache_get_folio(swp_entry_t entry, + struct vm_area_struct *vma, unsigned long addr) +{ + return NULL; +} + static inline struct page *lookup_swap_cache(swp_entry_t swp, struct vm_area_struct *vma, unsigned long addr) |