From 03fe58b3c42bf2508f5527cc59cbdc086b55042d Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Wed, 29 Jun 2011 12:51:41 -0400 Subject: [PATCH] Fix urcu-call-rcu-impl.h missing call_rcu_wait for non-linux systems Signed-off-by: Mathieu Desnoyers --- urcu-call-rcu-impl.h | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/urcu-call-rcu-impl.h b/urcu-call-rcu-impl.h index 63edcef..d5baa69 100644 --- a/urcu-call-rcu-impl.h +++ b/urcu-call-rcu-impl.h @@ -88,26 +88,6 @@ static struct call_rcu_data *default_call_rcu_data; static struct call_rcu_data **per_cpu_call_rcu_data; static long maxcpus; -static void call_rcu_wait(struct call_rcu_data *crdp) -{ - /* Read call_rcu list before read futex */ - cmm_smp_mb(); - if (uatomic_read(&crdp->futex) == -1) - futex_async(&crdp->futex, FUTEX_WAIT, -1, - NULL, NULL, 0); -} - -static void call_rcu_wake_up(struct call_rcu_data *crdp) -{ - /* Write to call_rcu list before reading/writing futex */ - cmm_smp_mb(); - if (unlikely(uatomic_read(&crdp->futex) == -1)) { - uatomic_set(&crdp->futex, 0); - futex_async(&crdp->futex, FUTEX_WAKE, 1, - NULL, NULL, 0); - } -} - /* Allocate the array if it has not already been allocated. */ static void alloc_cpu_call_rcu_data(void) @@ -194,6 +174,26 @@ int set_thread_cpu_affinity(struct call_rcu_data *crdp) } #endif +static void call_rcu_wait(struct call_rcu_data *crdp) +{ + /* Read call_rcu list before read futex */ + cmm_smp_mb(); + if (uatomic_read(&crdp->futex) == -1) + futex_async(&crdp->futex, FUTEX_WAIT, -1, + NULL, NULL, 0); +} + +static void call_rcu_wake_up(struct call_rcu_data *crdp) +{ + /* Write to call_rcu list before reading/writing futex */ + cmm_smp_mb(); + if (unlikely(uatomic_read(&crdp->futex) == -1)) { + uatomic_set(&crdp->futex, 0); + futex_async(&crdp->futex, FUTEX_WAKE, 1, + NULL, NULL, 0); + } +} + /* This is the code run by each call_rcu thread. */ static void *call_rcu_thread(void *arg) -- 2.34.1