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lockref: use BLOATED_SPINLOCKS to avoid explicit config dependencies
[firefly-linux-kernel-4.4.55.git]
/
include
/
linux
/
lockref.h
diff --git
a/include/linux/lockref.h
b/include/linux/lockref.h
index 13dfd36a329474df228102dd49bafbdf1b5c687d..c8929c3832db26d00d80f96e524afbb0e75c4df1 100644
(file)
--- a/
include/linux/lockref.h
+++ b/
include/linux/lockref.h
@@
-15,10
+15,15
@@
*/
#include <linux/spinlock.h>
*/
#include <linux/spinlock.h>
+#include <generated/bounds.h>
+
+#define USE_CMPXCHG_LOCKREF \
+ (IS_ENABLED(CONFIG_ARCH_USE_CMPXCHG_LOCKREF) && \
+ IS_ENABLED(CONFIG_SMP) && !BLOATED_SPINLOCKS)
struct lockref {
union {
struct lockref {
union {
-#if
def CONFIG
_CMPXCHG_LOCKREF
+#if
USE
_CMPXCHG_LOCKREF
aligned_u64 lock_count;
#endif
struct {
aligned_u64 lock_count;
#endif
struct {