[PATCH] mm: page_alloc less atomics

More atomic operation removal from page allocator

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 4 insertions, 4 deletions

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index da71d63df465..76c7ffdd0424 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -328,8 +328,8 @@ extern void __mod_page_state_offset(unsigned long offset, unsigned long delta);
 #define TestClearPageReclaim(page) test_and_clear_bit(PG_reclaim, &(page)->flags)
 
 #define PageCompound(page)      test_bit(PG_compound, &(page)->flags)
-#define SetPageCompound(page)   set_bit(PG_compound, &(page)->flags)
-#define ClearPageCompound(page) clear_bit(PG_compound, &(page)->flags)
+#define __SetPageCompound(page) __set_bit(PG_compound, &(page)->flags)
+#define __ClearPageCompound(page) __clear_bit(PG_compound, &(page)->flags)
 
 #ifdef CONFIG_SWAP
 #define PageSwapCache(page)     test_bit(PG_swapcache, &(page)->flags)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 61775866ea18..102919851353 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -190,7 +190,7 @@ static void prep_compound_page(struct page *page, unsigned long order)
         for (i = 0; i < nr_pages; i++) {
                 struct page *p = page + i;
 
-                SetPageCompound(p);
+                __SetPageCompound(p);
                 set_page_private(p, (unsigned long)page);
         }
 }
@@ -209,7 +209,7 @@ static void destroy_compound_page(struct page *page, unsigned long order)
                 if (unlikely(!PageCompound(p) |
                                 (page_private(p) != (unsigned long)page)))
                         bad_page(page);
-                ClearPageCompound(p);
+                __ClearPageCompound(p);
         }
 }