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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2013-09-11 14:21:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:57:31 -0700 |
| commit | d2cf5ad6312ca9913464fac40fb47ba47ad945c4 (patch) | |
| tree | 05590c6fed5ee9b86b65e1c23a899e921faeb040 /include/linux/swap.h | |
| parent | bc4b4448dba660afc8df3790564320302d9709a1 (diff) | |
| download | lwn-d2cf5ad6312ca9913464fac40fb47ba47ad945c4.tar.gz lwn-d2cf5ad6312ca9913464fac40fb47ba47ad945c4.zip | |
swap: clean-up #ifdef in page_mapping()
PageSwapCache() is always false when !CONFIG_SWAP, so compiler
properly discard related code. Therefore, we don't need #ifdef explicitly.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 24db9142e93b..c03c139219c9 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -447,6 +447,7 @@ mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout) #else /* CONFIG_SWAP */ +#define swap_address_space(entry) (NULL) #define get_nr_swap_pages() 0L #define total_swap_pages 0L #define total_swapcache_pages() 0UL |