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[PATCH] set_page_count() macro safety

Fix set_page_count() macro to handle complex arguments.

Signed-off-by: Avishay Traeger <atraeger@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Avishay Traeger 19 years ago
parent
commit
152194aaa6
1 changed files with 1 additions and 1 deletions
  1. 1 1
      include/linux/mm.h

+ 1 - 1
include/linux/mm.h

@@ -308,7 +308,7 @@ struct page {
  */
  */
 #define get_page_testone(p)	atomic_inc_and_test(&(p)->_count)
 #define get_page_testone(p)	atomic_inc_and_test(&(p)->_count)
 
 
-#define set_page_count(p,v) 	atomic_set(&(p)->_count, v - 1)
+#define set_page_count(p,v) 	atomic_set(&(p)->_count, (v) - 1)
 #define __put_page(p)		atomic_dec(&(p)->_count)
 #define __put_page(p)		atomic_dec(&(p)->_count)
 
 
 extern void FASTCALL(__page_cache_release(struct page *));
 extern void FASTCALL(__page_cache_release(struct page *));