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authorMatthew Wilcox <matthew@wil.cx>2009-01-06 14:40:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 15:59:10 -0800
commitea435467500612636f8f4fb639ff6e76b2496e4b (patch)
treefdf5cb7ca3834f0a4120fb3cce5a631dd2769f26 /include
parentf99ebf0a86de13f77bc4ee349de96db9f2f67f2e (diff)
downloadop-kernel-dev-ea435467500612636f8f4fb639ff6e76b2496e4b.zip
op-kernel-dev-ea435467500612636f8f4fb639ff6e76b2496e4b.tar.gz
atomic_t: unify all arch definitions
The atomic_t type cannot currently be used in some header files because it would create an include loop with asm/atomic.h. Move the type definition to linux/types.h to break the loop. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-frv/atomic.h4
-rw-r--r--include/asm-m32r/atomic.h8
-rw-r--r--include/asm-m68k/atomic.h3
-rw-r--r--include/asm-mn10300/atomic.h9
-rw-r--r--include/asm-xtensa/atomic.h3
-rw-r--r--include/linux/types.h10
6 files changed, 13 insertions, 24 deletions
diff --git a/include/asm-frv/atomic.h b/include/asm-frv/atomic.h
index 46d696b..296c35c 100644
--- a/include/asm-frv/atomic.h
+++ b/include/asm-frv/atomic.h
@@ -35,10 +35,6 @@
#define smp_mb__before_atomic_inc() barrier()
#define smp_mb__after_atomic_inc() barrier()
-typedef struct {
- int counter;
-} atomic_t;
-
#define ATOMIC_INIT(i) { (i) }
#define atomic_read(v) ((v)->counter)
#define atomic_set(v, i) (((v)->counter) = (i))
diff --git a/include/asm-m32r/atomic.h b/include/asm-m32r/atomic.h
index 3a38ffe..2eed30f 100644
--- a/include/asm-m32r/atomic.h
+++ b/include/asm-m32r/atomic.h
@@ -9,6 +9,7 @@
* Copyright (C) 2004 Hirokazu Takata <takata at linux-m32r.org>
*/
+#include <linux/types.h>
#include <asm/assembler.h>
#include <asm/system.h>
@@ -17,13 +18,6 @@
* resource counting etc..
*/
-/*
- * Make sure gcc doesn't try to be clever and move things around
- * on us. We need to use _exactly_ the address the user gave us,
- * not some alias that contains the same information.
- */
-typedef struct { volatile int counter; } atomic_t;
-
#define ATOMIC_INIT(i) { (i) }
/**
diff --git a/include/asm-m68k/atomic.h b/include/asm-m68k/atomic.h
index 4915294..eb0ab9d 100644
--- a/include/asm-m68k/atomic.h
+++ b/include/asm-m68k/atomic.h
@@ -1,7 +1,7 @@
#ifndef __ARCH_M68K_ATOMIC__
#define __ARCH_M68K_ATOMIC__
-
+#include <linux/types.h>
#include <asm/system.h>
/*
@@ -13,7 +13,6 @@
* We do not have SMP m68k systems, so we don't have to deal with that.
*/
-typedef struct { int counter; } atomic_t;
#define ATOMIC_INIT(i) { (i) }
#define atomic_read(v) ((v)->counter)
diff --git a/include/asm-mn10300/atomic.h b/include/asm-mn10300/atomic.h
index 27c9690..bc06482 100644
--- a/include/asm-mn10300/atomic.h
+++ b/include/asm-mn10300/atomic.h
@@ -20,15 +20,6 @@
* resource counting etc..
*/
-/*
- * Make sure gcc doesn't try to be clever and move things around
- * on us. We need to use _exactly_ the address the user gave us,
- * not some alias that contains the same information.
- */
-typedef struct {
- int counter;
-} atomic_t;
-
#define ATOMIC_INIT(i) { (i) }
#ifdef __KERNEL__
diff --git a/include/asm-xtensa/atomic.h b/include/asm-xtensa/atomic.h
index b3b2354..67ad67b 100644
--- a/include/asm-xtensa/atomic.h
+++ b/include/asm-xtensa/atomic.h
@@ -14,8 +14,7 @@
#define _XTENSA_ATOMIC_H
#include <linux/stringify.h>
-
-typedef struct { volatile int counter; } atomic_t;
+#include <linux/types.h>
#ifdef __KERNEL__
#include <asm/processor.h>
diff --git a/include/linux/types.h b/include/linux/types.h
index 121f349..3b864f2 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -195,6 +195,16 @@ typedef u32 phys_addr_t;
typedef phys_addr_t resource_size_t;
+typedef struct {
+ volatile int counter;
+} atomic_t;
+
+#ifdef CONFIG_64BIT
+typedef struct {
+ volatile long counter;
+} atomic64_t;
+#endif
+
struct ustat {
__kernel_daddr_t f_tfree;
__kernel_ino_t f_tinode;
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