diff options
| author | Wei Yang <richardw.yang@linux.intel.com> | 2019-11-30 17:57:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-12-01 12:59:09 -0800 |
| commit | df6c6500b4416baead2a1e17d9a80b675775c1df (patch) | |
| tree | aa11812717961060c09aa1fc1988f21a29b86e97 | |
| parent | d3cd257ce15bad10a86f5064433c9dda4d019697 (diff) | |
mm/madvise.c: use PAGE_ALIGN[ED] for range checking
Improve readability, no functional change.
Link: http://lkml.kernel.org/r/20191118032857.22683-1-richardw.yang@linux.intel.com
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/madvise.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index e808dbeb27f3..bcdb6a042787 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -1059,9 +1059,9 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior) if (!madvise_behavior_valid(behavior)) return error; - if (start & ~PAGE_MASK) + if (!PAGE_ALIGNED(start)) return error; - len = (len_in + ~PAGE_MASK) & PAGE_MASK; + len = PAGE_ALIGN(len_in); /* Check to see whether len was rounded up from small -ve to zero */ if (len_in && !len) |