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authorKyle McMartin <kyle@parisc-linux.org>2006-03-23 03:00:16 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 07:38:10 -0800
commit804f1594cc3deb161e531a43d90c501f0db2635a (patch)
tree81f7a7cea8dbf671c733df379c6582e36459e8da
parent6a2900b67652421b51fe25e4b86ecfec742b1f30 (diff)
[PATCH] Move read_mostly definition to asm/cache.h
Seems like needless clutter having a bunch of #if defined(CONFIG_$ARCH) in include/linux/cache.h. Move the per architecture section definition to asm/cache.h, and keep the if-not-defined dummy case in linux/cache.h to catch architectures which don't implement the section. Verified that symbols still go in .data.read_mostly on parisc, and the compile doesn't break. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/asm-i386/cache.h2
-rw-r--r--include/asm-ia64/cache.h2
-rw-r--r--include/asm-parisc/cache.h2
-rw-r--r--include/asm-sparc64/cache.h2
-rw-r--r--include/asm-x86_64/cache.h2
-rw-r--r--include/linux/cache.h4
6 files changed, 11 insertions, 3 deletions
diff --git a/include/asm-i386/cache.h b/include/asm-i386/cache.h
index 615911e5bd2..ca15c9c665c 100644
--- a/include/asm-i386/cache.h
+++ b/include/asm-i386/cache.h
@@ -10,4 +10,6 @@
#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif
diff --git a/include/asm-ia64/cache.h b/include/asm-ia64/cache.h
index 40dd25195d6..f0a104db8f2 100644
--- a/include/asm-ia64/cache.h
+++ b/include/asm-ia64/cache.h
@@ -25,4 +25,6 @@
# define SMP_CACHE_BYTES (1 << 3)
#endif
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif /* _ASM_IA64_CACHE_H */
diff --git a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
index 93f179f13ce..ae50f8e12ee 100644
--- a/include/asm-parisc/cache.h
+++ b/include/asm-parisc/cache.h
@@ -29,6 +29,8 @@
#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
extern void flush_data_cache_local(void *); /* flushes local data-cache only */
extern void flush_instruction_cache_local(void *); /* flushes local code-cache only */
#ifdef CONFIG_SMP
diff --git a/include/asm-sparc64/cache.h b/include/asm-sparc64/cache.h
index f7d35a2ae9b..e9df17acedd 100644
--- a/include/asm-sparc64/cache.h
+++ b/include/asm-sparc64/cache.h
@@ -13,4 +13,6 @@
#define SMP_CACHE_BYTES_SHIFT 6
#define SMP_CACHE_BYTES (1 << SMP_CACHE_BYTES_SHIFT) /* L2 cache line size. */
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif
diff --git a/include/asm-x86_64/cache.h b/include/asm-x86_64/cache.h
index 263f0a211ed..c8043a16152 100644
--- a/include/asm-x86_64/cache.h
+++ b/include/asm-x86_64/cache.h
@@ -20,6 +20,8 @@
__attribute__((__section__(".data.page_aligned")))
#endif
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif
#endif
diff --git a/include/linux/cache.h b/include/linux/cache.h
index d22e632f41f..cc4b3aafad9 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -13,9 +13,7 @@
#define SMP_CACHE_BYTES L1_CACHE_BYTES
#endif
-#if defined(CONFIG_X86) || defined(CONFIG_SPARC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
-#define __read_mostly __attribute__((__section__(".data.read_mostly")))
-#else
+#ifndef __read_mostly
#define __read_mostly
#endif