From 7cc8f9c7146a5c2dad6e71653c4f69972e73df6b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 9 Nov 2022 12:30:50 -0800 Subject: mm: mmu_gather: prepare to gather encoded page pointers with flags This is purely a preparatory patch that makes all the data structures ready for encoding flags with the mmu_gather page pointers. The code currently always sets the flag to zero and doesn't use it yet, but now it's tracking the type state along. The next step will be to actually start using it. Link: https://lkml.kernel.org/r/20221109203051.1835763-3-torvalds@linux-foundation.org Signed-off-by: Linus Torvalds Acked-by: Johannes Weiner Acked-by: Hugh Dickins Signed-off-by: Andrew Morton --- include/linux/swap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/swap.h') diff --git a/include/linux/swap.h b/include/linux/swap.h index fec6647a289a..b61e2007d156 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -463,7 +463,7 @@ static inline unsigned long total_swapcache_pages(void) extern void free_swap_cache(struct page *page); extern void free_page_and_swap_cache(struct page *); -extern void free_pages_and_swap_cache(struct page **, int); +extern void free_pages_and_swap_cache(struct encoded_page **, int); /* linux/mm/swapfile.c */ extern atomic_long_t nr_swap_pages; extern long total_swap_pages; -- cgit v1.2.3-58-ga151