X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-defer.c;h=6dc08a383f0f310ee0d71358242ed3a1bf081a20;hp=696ccae77db6c691c1172a6cd7c8b4eac5a88c09;hb=5481ddb381061bda64aebc039900d21cac6a6caf;hpb=6abb4bd53503c325dc94b0c0f60b44b9550b462f diff --git a/urcu-defer.c b/urcu-defer.c index 696ccae..6dc08a3 100644 --- a/urcu-defer.c +++ b/urcu-defer.c @@ -3,7 +3,7 @@ * * Userspace RCU library - batch memory reclamation * - * Copyright (c) 2009 Mathieu Desnoyers + * Copyright (c) 2009 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -123,13 +123,13 @@ static unsigned long rcu_defer_num_callbacks(void) static void wait_defer(void) { uatomic_dec(&defer_thread_futex); - smp_mb(); /* Write futex before read queue */ + cmm_smp_mb(); /* Write futex before read queue */ if (rcu_defer_num_callbacks()) { - smp_mb(); /* Read queue before write futex */ + cmm_smp_mb(); /* Read queue before write futex */ /* Callbacks are queued, don't wait. */ uatomic_set(&defer_thread_futex, 0); } else { - smp_rmb(); /* Read queue before read futex */ + cmm_smp_rmb(); /* Read queue before read futex */ if (uatomic_read(&defer_thread_futex) == -1) futex_noasync(&defer_thread_futex, FUTEX_WAIT, -1, NULL, NULL, 0); @@ -152,7 +152,7 @@ static void rcu_defer_barrier_queue(struct defer_queue *queue, */ for (i = queue->tail; i != head;) { - smp_rmb(); /* read head before q[]. */ + cmm_smp_rmb(); /* read head before q[]. */ p = LOAD_SHARED(queue->q[i++ & DEFER_QUEUE_MASK]); if (unlikely(DQ_IS_FCT_BIT(p))) { DQ_CLEAR_FCT_BIT(p); @@ -166,7 +166,7 @@ static void rcu_defer_barrier_queue(struct defer_queue *queue, fct = queue->last_fct_out; fct(p); } - smp_mb(); /* push tail after having used q[] */ + cmm_smp_mb(); /* push tail after having used q[] */ STORE_SHARED(queue->tail, i); } @@ -247,7 +247,7 @@ void _defer_rcu(void (*fct)(void *p), void *p) * If queue is full, or reached threshold. Empty queue ourself. * Worse-case: must allow 2 supplementary entries for fct pointer. */ - if (unlikely(sync || (head - tail >= DEFER_QUEUE_SIZE - 2))) { + if (unlikely(head - tail >= DEFER_QUEUE_SIZE - 2)) { assert(head - tail <= DEFER_QUEUE_SIZE); rcu_defer_barrier_thread(); assert(head - LOAD_SHARED(defer_queue.tail) == 0); @@ -283,10 +283,10 @@ void _defer_rcu(void (*fct)(void *p), void *p) } } _STORE_SHARED(defer_queue.q[head++ & DEFER_QUEUE_MASK], p); - smp_wmb(); /* Publish new pointer before head */ + cmm_smp_wmb(); /* Publish new pointer before head */ /* Write q[] before head. */ STORE_SHARED(defer_queue.head, head); - smp_mb(); /* Write queue head before read futex */ + cmm_smp_mb(); /* Write queue head before read futex */ /* * Wake-up any waiting defer thread. */