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authorHugh Dickins <hugh@veritas.com>2009-01-06 17:39:39 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 18:59:04 -0500
commitac47b003d03c2a4f28aef1d505b66d24ad191c4f (patch)
tree12c31491b756f4dc7a55a9e11b69b193743ff647 /include/linux/swap.h
parent63d6c5ad7fc27455ce5cb4706884671fb7e0df08 (diff)
mm: remove gfp_mask from add_to_swap
Remove gfp_mask argument from add_to_swap(): it's misleading because its only caller, shrink_page_list(), is not atomic at that point; and in due course (implementing discard) we'll sometimes want to allocate some memory with GFP_NOIO (as is used in swap_writepage) when allocating swap. No change to the gfp_mask passed down to add_to_swap_cache(): still use __GFP_HIGH without __GFP_WAIT (with nomemalloc and nowarn as before): though it's not obvious if that's the best combination to ask for here. Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Rik van Riel <riel@redhat.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Robin Holt <holt@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/swap.h')
-rw-r--r--include/linux/swap.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index c3ecd478840e..c38bd157695b 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -278,7 +278,7 @@ extern void end_swap_bio_read(struct bio *bio, int err);
278extern struct address_space swapper_space; 278extern struct address_space swapper_space;
279#define total_swapcache_pages swapper_space.nrpages 279#define total_swapcache_pages swapper_space.nrpages
280extern void show_swap_cache_info(void); 280extern void show_swap_cache_info(void);
281extern int add_to_swap(struct page *, gfp_t); 281extern int add_to_swap(struct page *);
282extern int add_to_swap_cache(struct page *, swp_entry_t, gfp_t); 282extern int add_to_swap_cache(struct page *, swp_entry_t, gfp_t);
283extern void __delete_from_swap_cache(struct page *); 283extern void __delete_from_swap_cache(struct page *);
284extern void delete_from_swap_cache(struct page *); 284extern void delete_from_swap_cache(struct page *);