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| author | Johannes Weiner <hannes@cmpxchg.org> | 2009-09-21 17:02:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-22 07:17:37 -0700 |
| commit | 6c0b13519d1c755d874e82c8fb8a6dcef0ee402c (patch) | |
| tree | 0fe6e6902a488ad6c59ecee971fe64c81edbcce3 /mm/vmscan.c | |
| parent | 401a8e1c1670085b8177330ca47d4f7c4ac88761 (diff) | |
| download | lwn-6c0b13519d1c755d874e82c8fb8a6dcef0ee402c.tar.gz lwn-6c0b13519d1c755d874e82c8fb8a6dcef0ee402c.zip | |
mm: return boolean from page_is_file_cache()
page_is_file_cache() has been used for both boolean checks and LRU
arithmetic, which was always a bit weird.
Now that page_lru_base_type() exists for LRU arithmetic, make
page_is_file_cache() a real predicate function and adjust the
boolean-using callsites to drop those pesky double negations.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 30e56ee833f8..172119caebcc 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -821,7 +821,7 @@ int __isolate_lru_page(struct page *page, int mode, int file) if (mode != ISOLATE_BOTH && (!PageActive(page) != !mode)) return ret; - if (mode != ISOLATE_BOTH && (!page_is_file_cache(page) != !file)) + if (mode != ISOLATE_BOTH && page_is_file_cache(page) != file) return ret; /* |