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authorPeter Zijlstra <peterz@infradead.org>2013-09-10 14:15:23 +0400
committerIngo Molnar <mingo@kernel.org>2013-09-25 16:07:54 +0400
commitbdb43806589096ac4272fe1307e789846ac08d7c (patch)
treec854e7e508193766d5cbdd82e8709cfab5ea3be5 /include/linux/hardirq.h
parent01028747559ac6c6f642a7bbd2875cc4f66b2feb (diff)
downloadlinux-bdb43806589096ac4272fe1307e789846ac08d7c.tar.xz
sched: Extract the basic add/sub preempt_count modifiers
Rewrite the preempt_count macros in order to extract the 3 basic preempt_count value modifiers: __preempt_count_add() __preempt_count_sub() and the new: __preempt_count_dec_and_test() And since we're at it anyway, replace the unconventional $op_preempt_count names with the more conventional preempt_count_$op. Since these basic operators are equivalent to the previous _notrace() variants, do away with the _notrace() versions. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-ewbpdbupy9xpsjhg960zwbv8@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/hardirq.h')
-rw-r--r--include/linux/hardirq.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 1e041063b226..d9cf963ac832 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -33,7 +33,7 @@ extern void rcu_nmi_exit(void);
#define __irq_enter() \
do { \
account_irq_enter_time(current); \
- add_preempt_count(HARDIRQ_OFFSET); \
+ preempt_count_add(HARDIRQ_OFFSET); \
trace_hardirq_enter(); \
} while (0)
@@ -49,7 +49,7 @@ extern void irq_enter(void);
do { \
trace_hardirq_exit(); \
account_irq_exit_time(current); \
- sub_preempt_count(HARDIRQ_OFFSET); \
+ preempt_count_sub(HARDIRQ_OFFSET); \
} while (0)
/*
@@ -62,7 +62,7 @@ extern void irq_exit(void);
lockdep_off(); \
ftrace_nmi_enter(); \
BUG_ON(in_nmi()); \
- add_preempt_count(NMI_OFFSET + HARDIRQ_OFFSET); \
+ preempt_count_add(NMI_OFFSET + HARDIRQ_OFFSET); \
rcu_nmi_enter(); \
trace_hardirq_enter(); \
} while (0)
@@ -72,7 +72,7 @@ extern void irq_exit(void);
trace_hardirq_exit(); \
rcu_nmi_exit(); \
BUG_ON(!in_nmi()); \
- sub_preempt_count(NMI_OFFSET + HARDIRQ_OFFSET); \
+ preempt_count_sub(NMI_OFFSET + HARDIRQ_OFFSET); \
ftrace_nmi_exit(); \
lockdep_on(); \
} while (0)