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authorPeter Zijlstra <peterz@infradead.org>2013-08-14 14:55:24 +0200
committerIngo Molnar <mingo@kernel.org>2013-09-25 14:07:32 +0200
commit4a2b4b222743bb07fedf985b884550f2ca067ea9 (patch)
tree587e80512c6cdf727b27d0f806758833547a65ed /kernel/softirq.c
parentea8117478918a4734586d35ff530721b682425be (diff)
downloadlinux-4a2b4b222743bb07fedf985b884550f2ca067ea9.tar.bz2
sched: Introduce preempt_count accessor functions
Replace the single preempt_count() 'function' that's an lvalue with two proper functions: preempt_count() - returns the preempt_count value as rvalue preempt_count_set() - Allows setting the preempt-count value Also provide preempt_count_ptr() as a convenience wrapper to implement all modifying operations. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-orxrbycjozopqfhb4dxdkdvb@git.kernel.org [ Fixed build failure. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/softirq.c')
-rw-r--r--kernel/softirq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 53cc09ceb0b8..a90de70cf1f3 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -106,7 +106,7 @@ static void __local_bh_disable(unsigned long ip, unsigned int cnt)
* We must manually increment preempt_count here and manually
* call the trace_preempt_off later.
*/
- preempt_count() += cnt;
+ add_preempt_count_notrace(cnt);
/*
* Were softirqs turned off above:
*/
@@ -256,7 +256,7 @@ restart:
" exited with %08x?\n", vec_nr,
softirq_to_name[vec_nr], h->action,
prev_count, preempt_count());
- preempt_count() = prev_count;
+ preempt_count_set(prev_count);
}
rcu_bh_qs(cpu);