From 3b344157c0c15b8f9588e3021dfb22ee25f4508a Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Fri, 2 Sep 2022 20:46:44 +0100 Subject: [PATCH] mm: remove try_to_free_swap() All callers have now been converted to folio_free_swap() and we can remove this wrapper. Link: https://lkml.kernel.org/r/20220902194653.1739778-49-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- include/linux/swap.h | 6 ------ mm/folio-compat.c | 7 ------- mm/memory.c | 2 +- 3 files changed, 1 insertion(+), 14 deletions(-) diff --git a/include/linux/swap.h b/include/linux/swap.h index d8bd6401c3e7..fc8d98660326 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -510,7 +510,6 @@ extern int __swp_swapcount(swp_entry_t entry); extern int swp_swapcount(swp_entry_t entry); extern struct swap_info_struct *page_swap_info(struct page *); extern struct swap_info_struct *swp_swap_info(swp_entry_t entry); -extern int try_to_free_swap(struct page *); struct backing_dev_info; extern int init_swap_address_space(unsigned int type, unsigned long nr_pages); extern void exit_swap_address_space(unsigned int type); @@ -595,11 +594,6 @@ static inline int swp_swapcount(swp_entry_t entry) return 0; } -static inline int try_to_free_swap(struct page *page) -{ - return 0; -} - static inline swp_entry_t folio_alloc_swap(struct folio *folio) { swp_entry_t entry; diff --git a/mm/folio-compat.c b/mm/folio-compat.c index 06d47f00609b..e1e23b4947d7 100644 --- a/mm/folio-compat.c +++ b/mm/folio-compat.c @@ -146,10 +146,3 @@ void putback_lru_page(struct page *page) { folio_putback_lru(page_folio(page)); } - -#ifdef CONFIG_SWAP -int try_to_free_swap(struct page *page) -{ - return folio_free_swap(page_folio(page)); -} -#endif diff --git a/mm/memory.c b/mm/memory.c index 2f1a6da7f1e6..6e568f190e7a 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3844,7 +3844,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) if (swapcache) { /* - * Make sure try_to_free_swap or swapoff did not release the + * Make sure folio_free_swap() or swapoff did not release the * swapcache from under us. The page pin, and pte_same test * below, are not enough to exclude that. Even if it is still * swapcache, we need to check that the page's swap has not