Messages in this thread Patch in this message | | | From | Alexander Kuleshov <> | Subject | [PATCH 03/10] mm/mincore: Use offset_in_page macro | Date | Tue, 15 Sep 2015 20:07:40 +0600 |
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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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