[PATCH 01/10] mm/msync: Use offset_in_page macro

[Alexander Kuleshov]

The <linux/mm.h> provides offset_in_page() macro. Let's use already
predefined macro instead of (addr & ~PAGE_MASK).

Signed-off-by: Alexander Kuleshov <kuleshovmail@xxxxxxxxx>
---
 mm/msync.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/msync.c b/mm/msync.c
index bb04d53..24e612f 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -38,7 +38,7 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
 
 	if (flags & ~(MS_ASYNC | MS_INVALIDATE | MS_SYNC))
 		goto out;
-	if (start & ~PAGE_MASK)
+	if (offset_in_page(start))
 		goto out;
 	if ((flags & MS_ASYNC) && (flags & MS_SYNC))
 		goto out;
-- 
2.5.0

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