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Diffstat (limited to 'include/linux/preempt.h')
-rw-r--r--include/linux/preempt.h26
1 files changed, 17 insertions, 9 deletions
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 2e681d9555bd..58969b2a8a82 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -27,6 +27,21 @@
asmlinkage void preempt_schedule(void);
+#define preempt_check_resched() \
+do { \
+ if (unlikely(test_thread_flag(TIF_NEED_RESCHED))) \
+ preempt_schedule(); \
+} while (0)
+
+#else /* !CONFIG_PREEMPT */
+
+#define preempt_check_resched() do { } while (0)
+
+#endif /* CONFIG_PREEMPT */
+
+
+#ifdef CONFIG_PREEMPT_COUNT
+
#define preempt_disable() \
do { \
inc_preempt_count(); \
@@ -39,12 +54,6 @@ do { \
dec_preempt_count(); \
} while (0)
-#define preempt_check_resched() \
-do { \
- if (unlikely(test_thread_flag(TIF_NEED_RESCHED))) \
- preempt_schedule(); \
-} while (0)
-
#define preempt_enable() \
do { \
preempt_enable_no_resched(); \
@@ -80,18 +89,17 @@ do { \
preempt_check_resched(); \
} while (0)
-#else
+#else /* !CONFIG_PREEMPT_COUNT */
#define preempt_disable() do { } while (0)
#define preempt_enable_no_resched() do { } while (0)
#define preempt_enable() do { } while (0)
-#define preempt_check_resched() do { } while (0)
#define preempt_disable_notrace() do { } while (0)
#define preempt_enable_no_resched_notrace() do { } while (0)
#define preempt_enable_notrace() do { } while (0)
-#endif
+#endif /* CONFIG_PREEMPT_COUNT */
#ifdef CONFIG_PREEMPT_NOTIFIERS