Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bd67fcf9ba8474e8eef649a79aba5b3479b01272
Commit: bd67fcf9ba8474e8eef649a79aba5b3479b01272
Parent: fc9069fe56d9594b7a6da0b9f9ca0eafd756260f
Author: Tony Breeds <[EMAIL PROTECTED]>
AuthorDate: Wed Jul 4 14:04:31 2007 +1000
Committer: Paul Mackerras <[EMAIL PROTECTED]>
CommitDate: Tue Jul 10 22:00:56 2007 +1000
[POWERPC] Add __read_mostly support for powerpc
Signed-off-by: Tony Breeds <[EMAIL PROTECTED]>
Signed-off-by: Paul Mackerras <[EMAIL PROTECTED]>
---
arch/powerpc/kernel/vmlinux.lds.S | 6 ++++++
include/asm-powerpc/cache.h | 4 ++++
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S
b/arch/powerpc/kernel/vmlinux.lds.S
index 21c39ff..ae4acd8 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -7,6 +7,7 @@
#define PROVIDE32(x) PROVIDE(x)
#endif
#include <asm-generic/vmlinux.lds.h>
+#include <asm/cache.h>
ENTRY(_stext)
@@ -211,6 +212,11 @@ SECTIONS
*(.data.cacheline_aligned)
}
+ . = ALIGN(L1_CACHE_BYTES);
+ .data.read_mostly : {
+ *(.data.read_mostly)
+ }
+
. = ALIGN(PAGE_SIZE);
__data_nosave : {
__nosave_begin = .;
diff --git a/include/asm-powerpc/cache.h b/include/asm-powerpc/cache.h
index 642be62..5350704 100644
--- a/include/asm-powerpc/cache.h
+++ b/include/asm-powerpc/cache.h
@@ -34,5 +34,9 @@ struct ppc64_caches {
extern struct ppc64_caches ppc64_caches;
#endif /* __powerpc64__ && ! __ASSEMBLY__ */
+#if !defined(__ASSEMBLY__)
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+#endif
+
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_CACHE_H */
-
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