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Pair all_cpu call_rcu create with free
[urcu.git]
/
urcu-qsbr.c
diff --git
a/urcu-qsbr.c
b/urcu-qsbr.c
index 8d8a9cf05ced0fd18ef9943110dc22a2e6e05e87..1dc99792d7a49f2f6f3614693e34cde239312bfb 100644
(file)
--- a/
urcu-qsbr.c
+++ b/
urcu-qsbr.c
@@
-24,6
+24,7
@@
*/
#define _GNU_SOURCE
*/
#define _GNU_SOURCE
+#define _LGPL_SOURCE
#include <stdio.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <pthread.h>
#include <signal.h>
@@
-34,12
+35,15
@@
#include <errno.h>
#include <poll.h>
#include <errno.h>
#include <poll.h>
+#include "urcu/wfqueue.h"
#include "urcu/map/urcu-qsbr.h"
#include "urcu/map/urcu-qsbr.h"
-
#define BUILD_QSBR_LIB
#include "urcu/static/urcu-qsbr.h"
#define BUILD_QSBR_LIB
#include "urcu/static/urcu-qsbr.h"
+
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
+#undef _LGPL_SOURCE
#include "urcu-qsbr.h"
#include "urcu-qsbr.h"
+#define _LGPL_SOURCE
void __attribute__((destructor)) rcu_exit(void);
void __attribute__((destructor)) rcu_exit(void);
@@
-214,8
+218,11
@@
void synchronize_rcu(void)
* our own quiescent state. This allows using synchronize_rcu()
* in threads registered as readers.
*/
* our own quiescent state. This allows using synchronize_rcu()
* in threads registered as readers.
*/
- if (was_online)
+ if (was_online)
{
CMM_STORE_SHARED(rcu_reader.ctr, 0);
CMM_STORE_SHARED(rcu_reader.ctr, 0);
+ cmm_smp_mb(); /* write rcu_reader.ctr before read futex */
+ wake_up_gp();
+ }
mutex_lock(&rcu_gp_lock);
mutex_lock(&rcu_gp_lock);
@@
-273,8
+280,11
@@
void synchronize_rcu(void)
* in threads registered as readers.
*/
cmm_smp_mb();
* in threads registered as readers.
*/
cmm_smp_mb();
- if (was_online)
+ if (was_online)
{
CMM_STORE_SHARED(rcu_reader.ctr, 0);
CMM_STORE_SHARED(rcu_reader.ctr, 0);
+ cmm_smp_mb(); /* write rcu_reader.ctr before read futex */
+ wake_up_gp();
+ }
mutex_lock(&rcu_gp_lock);
if (cds_list_empty(®istry))
mutex_lock(&rcu_gp_lock);
if (cds_list_empty(®istry))
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