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[PATCH] mm: remove atomic

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This bitop does not need to be atomic because it is performed when there will
be no references to the page (ie.  the page is being freed).

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Nick Piggin 2005-09-03 15:54:50 -07:00 • committed by Linus Torvalds
parent 9a61c349b2
commit 242e546862
2 changed files with 2 additions and 1 deletions
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1
include/linux/page-flags.h
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@ -194,6 +194,7 @@ extern void __mod_page_state(unsigned long offset, unsigned long delta);
#define SetPageDirty(page) set_bit(PG_dirty, &(page)->flags) #define SetPageDirty(page) set_bit(PG_dirty, &(page)->flags)
#define TestSetPageDirty(page) test_and_set_bit(PG_dirty, &(page)->flags) #define TestSetPageDirty(page) test_and_set_bit(PG_dirty, &(page)->flags)
#define ClearPageDirty(page) clear_bit(PG_dirty, &(page)->flags) #define ClearPageDirty(page) clear_bit(PG_dirty, &(page)->flags)
#define __ClearPageDirty(page) __clear_bit(PG_dirty, &(page)->flags)
#define TestClearPageDirty(page) test_and_clear_bit(PG_dirty, &(page)->flags) #define TestClearPageDirty(page) test_and_clear_bit(PG_dirty, &(page)->flags)
#define SetPageLRU(page) set_bit(PG_lru, &(page)->flags) #define SetPageLRU(page) set_bit(PG_lru, &(page)->flags)

2
mm/page_alloc.c
View file

@ -329,7 +329,7 @@ static inline void free_pages_check(const char *function, struct page *page)
1 << PG_writeback ))) 1 << PG_writeback )))
bad_page(function, page); bad_page(function, page);
if (PageDirty(page)) if (PageDirty(page))
ClearPageDirty(page); __ClearPageDirty(page);
} }
/* /*