diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2013-07-03 15:02:11 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-12-18 18:51:18 +0100 |
| commit | d526916b661badeab9ba8dc05279936cf49f88f3 (patch) | |
| tree | 84cae98323fa0de292519e260fae2e4d8a37c347 /include/linux/mm.h | |
| parent | cd253be50358e8bdf818e81b0f89cda601abfedf (diff) | |
UPSTREAM: include/linux/mm.h: add PAGE_ALIGNED() helper
To test whether an address is aligned to PAGE_SIZE.
Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 0fa73b86ef0797ca4fde5334117ca0b330f08030)
Bug: 36007193
Change-Id: I7e912bb0dbd8c9737fb13c5b48acb54ee39dd5fc
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index c2be3b0c6..8aecdef77 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -67,6 +67,9 @@ extern unsigned long sysctl_admin_reserve_kbytes; /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) +/* test whether an address (unsigned long or pointer) is aligned to PAGE_SIZE */ +#define PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)addr, PAGE_SIZE) + /* * Linux kernel virtual memory manager primitives. * The idea being to have a "virtual" mm in the same way |