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authorLee Schermerhorn <Lee.Schermerhorn@hp.com>2009-12-15 04:58:49 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 19:53:16 +0300
commitd4906e1aa516cc965292b43b5a26122dd4344e7e (patch)
tree78c19149282e93200d90f380a40f1e1192354936 /include/linux/swap.h
parent7509765a29cfb1a4c506c09b304aaf3b4111c653 (diff)
downloadlinux-d4906e1aa516cc965292b43b5a26122dd4344e7e.tar.xz
swap: rework map_swap_page() again
Seems that page_io.c doesn't really need to know that page_private(page) is the swp_entry 'val'. Rework map_swap_page() to do what its name says and map a page to a page offset in the swap space. The only other caller of map_swap_page() is internal to mm/swapfile.c and it does want to map a swap entry to the 'sector'. So rename map_swap_page() to map_swap_entry(), make it 'static' and and implement map_swap_page() as a wrapper around that. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> 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 9f0ca325e30d..a2602a8207a6 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -325,7 +325,7 @@ extern void swapcache_free(swp_entry_t, struct page *page);
extern int free_swap_and_cache(swp_entry_t);
extern int swap_type_of(dev_t, sector_t, struct block_device **);
extern unsigned int count_swap_pages(int, int);
-extern sector_t map_swap_page(swp_entry_t, struct block_device **);
+extern sector_t map_swap_page(struct page *, struct block_device **);
extern sector_t swapdev_block(int, pgoff_t);
extern int reuse_swap_page(struct page *);
extern int try_to_free_swap(struct page *);