Commit b28efd54 authored Oct 13, 2010 by Eric Paris Committed by James Morris Oct 21, 2010

kernel: roundup should only reference arguments once



Currently the roundup macro references it's arguments more than one time.
This patch changes it so it will only use its arguments once.

Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

parent 686a0f3d

include/linux/kernel.h

+6 −1

Original line number	Diff line number	Diff line
		@@ -58,7 +58,12 @@ extern const char linux_proc_banner[];

		#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
		#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
		#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
		#define roundup(x, y) ( \
		{ \
		typeof(y) __y = y; \
		(((x) + (__y - 1)) / __y) * __y; \
		} \
		)
		#define rounddown(x, y) ( \
		{ \
		typeof(x) __x = (x); \

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