fix bug in PAGE_MASK

diff --git a/share/kernelcompat.h b/share/kernelcompat.h
index 3c23ac99477b8d95e4c367b59f58d7c95daf4834..57d12f83aef1a85d713402984611cedcaf269833 100644 (file)
--- a/share/kernelcompat.h
+++ b/share/kernelcompat.h
@@ -141,7 +141,7 @@ static __inline__ int get_count_order(unsigned int count)
 #define __ALIGN_MASK(x,mask)   (((x)+(mask))&~(mask))
 #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
 #define PAGE_SIZE sysconf(_SC_PAGE_SIZE)
-#define PAGE_MASK (PAGE_SIZE-1)
+#define PAGE_MASK (~(PAGE_SIZE-1))