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>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/types.h b/include/linux/types.h
index 121f349cb7ec..3b864f2d9560 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;