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Add comment in rcu_add_lock
[urcu.git]
/
urcu.h
diff --git
a/urcu.h
b/urcu.h
index 9e9fea2b96fafa5c4688a1b1bf696284587df25f..277b7d2f45ae565610e4db9ee89457174fafa667 100644
(file)
--- a/
urcu.h
+++ b/
urcu.h
@@
-199,6
+199,7
@@
static inline void rcu_read_lock(void)
debug_yield_read();
tmp = urcu_active_readers;
debug_yield_read();
+ /* urcu_gp_ctr = RCU_GP_COUNT | (~RCU_GP_CTR_BIT or RCU_GP_CTR_BIT) */
if (likely(!(tmp & RCU_GP_CTR_NEST_MASK)))
urcu_active_readers = urcu_gp_ctr;
else
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