From: Alexander Kuleshov <kuleshovmail@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>,
Johannes Weiner <hannes@cmpxchg.org>,
David Rientjes <rientjes@google.com>,
Vladimir Davydov <vdavydov@parallels.com>,
Tejun Heo <tj@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Alexander Kuleshov <kuleshovmail@gmail.com>
Subject: [PATCH 06/10] mm/util: Use offset_in_page macro
Date: Tue, 15 Sep 2015 20:08:11 +0600 [thread overview]
Message-ID: <1442326091-7438-1-git-send-email-kuleshovmail@gmail.com> (raw)
In-Reply-To: <1442326012-7034-1-git-send-email-kuleshovmail@gmail.com>
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/util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/util.c b/mm/util.c
index 68ff8a5..9af1c12 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -309,7 +309,7 @@ unsigned long vm_mmap(struct file *file, unsigned long addr,
{
if (unlikely(offset + PAGE_ALIGN(len) < offset))
return -EINVAL;
- if (unlikely(offset & ~PAGE_MASK))
+ if (unlikely(offset_in_page(offset)))
return -EINVAL;
return vm_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);
--
2.5.0
--
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next prev parent reply other threads:[~2015-09-15 14:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1442326012-7034-1-git-send-email-kuleshovmail@gmail.com>
2015-09-15 14:07 ` [PATCH 01/10] mm/msync: Use offset_in_page macro Alexander Kuleshov
2015-09-15 14:07 ` [PATCH 02/10] mm/nommu: " Alexander Kuleshov
2015-09-15 14:07 ` [PATCH 03/10] mm/mincore: " Alexander Kuleshov
2015-09-15 14:07 ` [PATCH 04/10] mm/early_ioremap: " Alexander Kuleshov
2015-09-15 14:08 ` [PATCH 05/10] mm/percpu: " Alexander Kuleshov
2015-09-15 14:32 ` Tejun Heo
2015-09-15 14:08 ` Alexander Kuleshov [this message]
2015-09-15 14:08 ` [PATCH 07/10] mm/mlock: " Alexander Kuleshov
2015-09-15 14:08 ` [PATCH 08/10] mm/vmalloc: " Alexander Kuleshov
2015-09-15 14:08 ` [PATCH 09/10] mm/mmap: " Alexander Kuleshov
2015-09-15 14:08 ` [PATCH 10/10] mm/mremap: " Alexander Kuleshov
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