From c9edc242811d4c4b939b283f4f40b89f9c5b3b5a Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Fri, 2 Sep 2022 20:46:15 +0100 Subject: 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) Signed-off-by: Andrew Morton --- mm/swap.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'mm/swap.h') 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) -- cgit v1.2.3