From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 4 Jun 2007 06:46:56 +0000 (+0900)
Subject: sh: Default to 4-byte alignment for SLUB objects.
X-Git-Tag: v2.6.23-rc1~785^2~45
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cbd2d9d8fcd9d2a46d71d0703a76773c20383c66;p=karo-tx-linux.git

sh: Default to 4-byte alignment for SLUB objects.

Slub currently defaults to 8-byte alignment for the kmalloc
and slab minalign values, where 4 will suffice. In the slab
case BYTES_PER_WORD == 4 already, so defining the minalign
values outright doesn't cause any regressions there either.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index cb54b25100b1..6bc9bba10105 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -151,5 +151,12 @@ typedef struct { unsigned long pgd; } pgd_t;
 #define __HAVE_ARCH_GATE_AREA
 #endif
 
+/*
+ * Slub defaults to 8-byte alignment, we're only interested in 4.
+ * Slab defaults to BYTES_PER_WORD, which ends up being the same anyways.
+ */
+#define ARCH_KMALLOC_MINALIGN	4
+#define ARCH_SLAB_MINALIGN	4
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_PAGE_H */