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Subject[PATCH 03/10] mm/mincore: Use offset_in_page macro
Date
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@gmail.com>
---
mm/mincore.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mincore.c b/mm/mincore.c
index be25efd..a011355 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -234,8 +234,7 @@ SYSCALL_DEFINE3(mincore, unsigned long, start, size_t, len,

/* This also avoids any overflows on PAGE_CACHE_ALIGN */
pages = len >> PAGE_SHIFT;
- pages += (len & ~PAGE_MASK) != 0;
+ pages += (offset_in_page(len)) != 0;

if (!access_ok(VERIFY_WRITE, vec, pages))
return -EFAULT;
--
2.5.0


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