[RFC: -mm patch] kcalloc(): INT_MAX -> ULONG_MAX

[Adrian Bunk <bunk@stusta.de>]

This change could (at least in theory) allow a compiler better 
optimization (especially in the n=1 case).

The practical effect seems to be nearly zero:
    text           data     bss      dec            hex filename
25617207        5850138 1827016 33294361        1fc0819 vmlinux-old
25617191        5850138 1827016 33294345        1fc0809 vmlinux-patched

Is there any reason against this patch?


Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6.13-rc6-mm1-full/include/linux/slab.h.old	2005-08-20 04:10:09.000000000 +0200
+++ linux-2.6.13-rc6-mm1-full/include/linux/slab.h	2005-08-20 04:11:04.000000000 +0200
@@ -113,7 +113,7 @@
  */
 static inline void *kcalloc(size_t n, size_t size, unsigned int __nocast flags)
 {
-	if (n != 0 && size > INT_MAX / n)
+	if (n != 0 && size > ULONG_MAX / n)
 		return NULL;
 	return kzalloc(n * size, flags);
 }

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/