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| author | Hugh Dickins <hugh@veritas.com> | 2009-01-06 14:39:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:04 -0800 |
| commit | 60371d971a3d01afd102f0bbf2681f32ecc31d78 (patch) | |
| tree | 999cd75fbf80877f99b518e632c445ae849eeb4d /include/linux/swap.h | |
| parent | ac47b003d03c2a4f28aef1d505b66d24ad191c4f (diff) | |
| download | lwn-60371d971a3d01afd102f0bbf2681f32ecc31d78.tar.gz lwn-60371d971a3d01afd102f0bbf2681f32ecc31d78.zip | |
mm: add add_to_swap stub
If we add a failing stub for add_to_swap(), then we can remove the #ifdef
CONFIG_SWAP from mm/vmscan.c.
This was intended as a source cleanup, but looking more closely, it turns
out that the !CONFIG_SWAP case was going to keep_locked for an anonymous
page, whereas now it goes to the more suitable activate_locked, like the
CONFIG_SWAP nr_swap_pages 0 case.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Acked-by: 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.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index c38bd157695b..c0d23ac710d5 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -371,6 +371,11 @@ static inline struct page *lookup_swap_cache(swp_entry_t swp) return NULL; } +static inline int add_to_swap(struct page *page) +{ + return 0; +} + static inline int add_to_swap_cache(struct page *page, swp_entry_t entry, gfp_t gfp_mask) { |