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-rw-r--r--include/qemu/rcu.h6
1 files changed, 1 insertions, 5 deletions
diff --git a/include/qemu/rcu.h b/include/qemu/rcu.h
index f6d1d56375..7c7cca7f6f 100644
--- a/include/qemu/rcu.h
+++ b/include/qemu/rcu.h
@@ -88,10 +88,6 @@ static inline void rcu_read_lock(void)
ctr = atomic_read(&rcu_gp_ctr);
atomic_xchg(&p_rcu_reader->ctr, ctr);
- if (atomic_read(&p_rcu_reader->waiting)) {
- atomic_set(&p_rcu_reader->waiting, false);
- qemu_event_set(&rcu_gp_event);
- }
}
static inline void rcu_read_unlock(void)
@@ -104,7 +100,7 @@ static inline void rcu_read_unlock(void)
}
atomic_xchg(&p_rcu_reader->ctr, 0);
- if (atomic_read(&p_rcu_reader->waiting)) {
+ if (unlikely(atomic_read(&p_rcu_reader->waiting))) {
atomic_set(&p_rcu_reader->waiting, false);
qemu_event_set(&rcu_gp_event);
}