[patch 1/3]make readmostly section correctly align

[Shaohua Li]

readmostly section should end at cache line aligned address, otherwise the last
several data might share cachline with other data and make the readmostly data
still have cache bounce.
For example, in ia64, secpath_cachep is the last readmostly data, and it shares
cacheline with init_uts_ns.
a000000100e80480 d secpath_cachep
a000000100e80488 D init_uts_ns

Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>

---
 include/asm-generic/vmlinux.lds.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux/include/asm-generic/vmlinux.lds.h
===================================================================
--- linux.orig/include/asm-generic/vmlinux.lds.h	2010-12-01 16:49:48.000000000 +0800
+++ linux/include/asm-generic/vmlinux.lds.h	2010-12-02 09:22:32.000000000 +0800
@@ -192,7 +192,8 @@
 
 #define READ_MOSTLY_DATA(align)						\
 	. = ALIGN(align);						\
-	*(.data..read_mostly)
+	*(.data..read_mostly)						\
+	. = ALIGN(align);
 
 #define CACHELINE_ALIGNED_DATA(align)					\
 	. = ALIGN(align);						\


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