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Commit 242e5468 authored by Nick Piggin's avatar Nick Piggin Committed by Linus Torvalds
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[PATCH] mm: remove atomic 



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: default avatarNick Piggin <npiggin@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 9a61c349

include/linux/page-flags.h

+1 −0
Original line number Diff line number Diff line
@@ -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 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 TestClearPageDirty(page) test_and_clear_bit(PG_dirty, &(page)->flags)



#define SetPageLRU(page)	set_bit(PG_lru, &(page)->flags)

mm/page_alloc.c

+1 −1
Original line number Diff line number Diff line
@@ -329,7 +329,7 @@ static inline void free_pages_check(const char *function, struct page *page) 
			1 << PG_writeback )))

		bad_page(function, page);

	if (PageDirty(page))

		ClearPageDirty(page);

		__ClearPageDirty(page);

}



/*