From: Adrian Bunk <bunk@stusta.de>
Date: Wed, 22 Mar 2006 08:08:09 +0000 (-0800)
Subject: [PATCH] kcalloc(): INT_MAX -> ULONG_MAX
X-Git-Tag: v2.6.17-rc1~1129^2~72
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b50ec7d8070ae7a39fe78e65a8812bbc3ca2f7ac;p=pandora-kernel.git

[PATCH] kcalloc(): INT_MAX -> ULONG_MAX

Since size_t has the same size as a long on all architectures, it's enough
for overflow checks to check against ULONG_MAX.

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

The practical effect seems to be positive, but quite small:

    text           data     bss      dec            hex filename
21762380        5859870 1848928 29471178        1c1b1ca vmlinux-old
21762211        5859870 1848928 29471009        1c1b121 vmlinux-patched

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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