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-rw-r--r--include/linux/atomic.h34
-rw-r--r--include/linux/sched.h4
-rw-r--r--include/uapi/linux/stddef.h4
3 files changed, 23 insertions, 19 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index df4f369254c0..506c3531832e 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -559,25 +559,25 @@ static inline int atomic_dec_if_positive(atomic_t *v)
#endif
/**
- * fetch_or - perform *ptr |= mask and return old value of *ptr
- * @ptr: pointer to value
- * @mask: mask to OR on the value
- *
- * cmpxchg based fetch_or, macro so it works for different integer types
+ * atomic_fetch_or - perform *p |= mask and return old value of *p
+ * @p: pointer to atomic_t
+ * @mask: mask to OR on the atomic_t
*/
-#ifndef fetch_or
-#define fetch_or(ptr, mask) \
-({ typeof(*(ptr)) __old, __val = *(ptr); \
- for (;;) { \
- __old = cmpxchg((ptr), __val, __val | (mask)); \
- if (__old == __val) \
- break; \
- __val = __old; \
- } \
- __old; \
-})
-#endif
+#ifndef atomic_fetch_or
+static inline int atomic_fetch_or(atomic_t *p, int mask)
+{
+ int old, val = atomic_read(p);
+
+ for (;;) {
+ old = atomic_cmpxchg(p, val, val | mask);
+ if (old == val)
+ break;
+ val = old;
+ }
+ return old;
+}
+#endif
#ifdef CONFIG_GENERIC_ATOMIC64
#include <asm-generic/atomic64.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 60bba7e032dc..52c4847b05e2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -720,7 +720,7 @@ struct signal_struct {
struct task_cputime cputime_expires;
#ifdef CONFIG_NO_HZ_FULL
- unsigned long tick_dep_mask;
+ atomic_t tick_dep_mask;
#endif
struct list_head cpu_timers[3];
@@ -1549,7 +1549,7 @@ struct task_struct {
#endif
#ifdef CONFIG_NO_HZ_FULL
- unsigned long tick_dep_mask;
+ atomic_t tick_dep_mask;
#endif
unsigned long nvcsw, nivcsw; /* context switch counts */
u64 start_time; /* monotonic time in nsec */
diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h
index aa9f10428743..621fa8ac4425 100644
--- a/include/uapi/linux/stddef.h
+++ b/include/uapi/linux/stddef.h
@@ -1 +1,5 @@
#include <linux/compiler.h>
+
+#ifndef __always_inline
+#define __always_inline inline
+#endif