X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-qsbr-static.h;h=86f0fc507449451d70f276571d3c6aa1be61d98a;hp=7cef820d59fd7ff4223b0a9cc01f6834073d7b13;hb=0ecb3fde04135d76545ce55d80abea9aef465b54;hpb=f02bbafc4513879a545b6b5ad932ea5ff220230d diff --git a/urcu-qsbr-static.h b/urcu-qsbr-static.h index 7cef820..86f0fc5 100644 --- a/urcu-qsbr-static.h +++ b/urcu-qsbr-static.h @@ -135,7 +135,7 @@ struct rcu_reader { /* Data used by both reader and synchronize_rcu() */ unsigned long ctr; /* Data used for registry */ - struct list_head head __attribute__((aligned(CACHE_LINE_SIZE))); + struct list_head node __attribute__((aligned(CACHE_LINE_SIZE))); pthread_t tid; }; @@ -155,27 +155,13 @@ static inline void wake_up_gp(void) } } -#if (BITS_PER_LONG < 64) -static inline int rcu_gp_ongoing(unsigned long *value) +static inline int rcu_gp_ongoing(unsigned long *ctr) { - unsigned long reader_gp; + unsigned long v; - if (value == NULL) - return 0; - reader_gp = LOAD_SHARED(*value); - return reader_gp && ((reader_gp ^ rcu_gp_ctr) & RCU_GP_CTR); + v = LOAD_SHARED(*ctr); + return v && (v != rcu_gp_ctr); } -#else /* !(BITS_PER_LONG < 64) */ -static inline int rcu_gp_ongoing(unsigned long *value) -{ - unsigned long reader_gp; - - if (value == NULL) - return 0; - reader_gp = LOAD_SHARED(*value); - return reader_gp && (reader_gp - rcu_gp_ctr > ULONG_MAX / 2); -} -#endif /* !(BITS_PER_LONG < 64) */ static inline void _rcu_read_lock(void) {