[PATCH]micro optimization of kcalloc

Hi,

this optimises away a division in kcalloc by letting the compiler
do it. It is redone to allow size==0.

	Regards
		Oliver

Signed-off-by: Oliver Neukum <[email protected]>

--- linux-2.6.16-rc6-vanilla/include/linux/slab.h	2006-03-11 23:12:55.000000000 +0100
+++ linux-2.6.16-rc6/include/linux/slab.h	2006-03-20 14:39:36.000000000 +0100
@@ -118,7 +118,7 @@
  */
 static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
 {
-	if (n != 0 && size > INT_MAX / n)
+	if (unlikely(size != 0 && n > INT_MAX / size ))
 		return NULL;
 	return kzalloc(n * size, flags);
 }
-
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