| Message ID | 20191118032857.22683-1-richardw.yang@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | madvise: use PAGE_ALIGN[ED] for range checking | expand |
diff --git a/mm/madvise.c b/mm/madvise.c index 2be9f3fdb05e..89913b545649 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -1051,9 +1051,9 @@ 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)
Improve readability, no functional change. Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> --- mm/madvise.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)