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| author | Nick Piggin <npiggin@suse.de> | 2006-03-22 00:08:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 07:53:57 -0800 |
| commit | 674539115cc88473f623581e1d53c0e2ecef2179 (patch) | |
| tree | 7a32501091d7370ff4387df68804f918a089c631 /mm/swap.c | |
| parent | 4c84cacfa424264f7ad5287298d3ea4a3e935278 (diff) | |
| download | lwn-674539115cc88473f623581e1d53c0e2ecef2179.tar.gz lwn-674539115cc88473f623581e1d53c0e2ecef2179.zip | |
[PATCH] mm: less atomic ops
In the page release paths, we can be sure that nobody will mess with our
page->flags because the refcount has dropped to 0. So no need for atomic
operations here.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/swap.c')
| -rw-r--r-- | mm/swap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/swap.c b/mm/swap.c index cf88226cf96d..91b7e2026f69 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -215,7 +215,7 @@ void fastcall __page_cache_release(struct page *page) spin_lock_irqsave(&zone->lru_lock, flags); BUG_ON(!PageLRU(page)); - ClearPageLRU(page); + __ClearPageLRU(page); del_page_from_lru(zone, page); spin_unlock_irqrestore(&zone->lru_lock, flags); } @@ -266,7 +266,7 @@ void release_pages(struct page **pages, int nr, int cold) spin_lock_irq(&zone->lru_lock); } BUG_ON(!PageLRU(page)); - ClearPageLRU(page); + __ClearPageLRU(page); del_page_from_lru(zone, page); } |