From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tim Abbott <tabbott@MIT.EDU>
Subject: [PATCH v2 6/6] Add support for __read_mostly to linux/cache.h
Date: Thu, 30 Apr 2009 15:54:13 -0400
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Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>, Anders Kaseorg <andersk@mit.edu>, Waseem Daher <wdaher@mit.edu>, Denys Vlasenko <vda.linux@googlemail.com>, Jeff Arnold <jbarnold@mit.edu>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Bryan Wu <cooloney@kernel.org>, Chris Zankel <chris@zankel.net>, Cyrill Gorcunov <gorcunov@openvz.org>, David Howells <dhowells@redhat.com>, "David S. Miller" <davem@davemloft.net>, dev-etrax@axis.com, Geert Uytterhoeven <geert@linux-m68k.org>, Greg Ungerer <gerg@uclinux.org>, Haavard Skinnemoen <hskinnemoen@atmel.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, Helge Deller <deller@gmx.de>, Hirokazu Takata <takata@linux-m32r.org>, "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>, Jeff Dike <jdike@addtoit.com>, Jesper Nilsson <jesper.nilsson@axis.com>, Kyle McMartin <kyle@mcmartin.ca>
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Signed-off-by: Tim Abbott <tabbott@mit.edu>
---
 include/linux/cache.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/cache.h b/include/linux/cache.h
index 97e2488..99d8a6f 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -13,7 +13,13 @@
 #endif
 
 #ifndef __read_mostly
+#ifdef CONFIG_HAVE_READ_MOSTLY_DATA
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+#define __READ_MOSTLY .section ".data.read_mostly", "aw"
+#else
 #define __read_mostly
+#define __READ_MOSTLY
+#endif /* CONFIG_HAVE_READ_MOSTLY_DATA */
 #endif
 
 #ifndef ____cacheline_aligned
-- 
1.6.2.1