Commit df6c6500 authored Nov 30, 2019 by Wei Yang Committed by Linus Torvalds Dec 01, 2019

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>

parent d3cd257c

mm/madvise.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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)

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