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qsbr: portability fixes: use unsigned long for the gp counters.
[urcu.git]
/
urcu-qsbr-static.h
diff --git
a/urcu-qsbr-static.h
b/urcu-qsbr-static.h
index b18affeb1be6ea203b7636e5f235011cd01580b7..3d2ec8f3af5b046c9ca66c3b24e4e77aa762d358 100644
(file)
--- a/
urcu-qsbr-static.h
+++ b/
urcu-qsbr-static.h
@@
-32,6
+32,7
@@
#include <stdlib.h>
#include <pthread.h>
#include <assert.h>
#include <stdlib.h>
#include <pthread.h>
#include <assert.h>
+#include <limits.h>
#include <compiler.h>
#include <arch.h>
#include <compiler.h>
#include <arch.h>
@@
-165,18
+166,18
@@
static inline void reader_barrier()
* Using a int rather than a char to eliminate false register dependencies
* causing stalls on some architectures.
*/
* Using a int rather than a char to eliminate false register dependencies
* causing stalls on some architectures.
*/
-extern long urcu_gp_ctr;
+extern
unsigned
long urcu_gp_ctr;
-extern long __thread rcu_reader_qs_gp;
+extern
unsigned
long __thread rcu_reader_qs_gp;
-static inline int rcu_gp_ongoing(long *value)
+static inline int rcu_gp_ongoing(
unsigned
long *value)
{
{
- long reader_gp;
+
unsigned
long reader_gp;
if (value == NULL)
return 0;
reader_gp = LOAD_SHARED(*value);
if (value == NULL)
return 0;
reader_gp = LOAD_SHARED(*value);
- return
(reader_gp & 1) && (reader_gp - urcu_gp_ctr < 0
);
+ return
reader_gp && (reader_gp - urcu_gp_ctr > ULONG_MAX / 2
);
}
static inline void _rcu_read_lock(void)
}
static inline void _rcu_read_lock(void)
@@
-191,7
+192,7
@@
static inline void _rcu_read_unlock(void)
static inline void _rcu_quiescent_state(void)
{
smp_mb();
static inline void _rcu_quiescent_state(void)
{
smp_mb();
- _STORE_SHARED(rcu_reader_qs_gp, _LOAD_SHARED(urcu_gp_ctr)
+ 1
);
+ _STORE_SHARED(rcu_reader_qs_gp, _LOAD_SHARED(urcu_gp_ctr));
smp_mb();
}
smp_mb();
}
@@
-203,7
+204,7
@@
static inline void _rcu_thread_offline(void)
static inline void _rcu_thread_online(void)
{
static inline void _rcu_thread_online(void)
{
- _STORE_SHARED(rcu_reader_qs_gp, LOAD_SHARED(urcu_gp_ctr)
+ 1
);
+ _STORE_SHARED(rcu_reader_qs_gp, LOAD_SHARED(urcu_gp_ctr));
smp_mb();
}
smp_mb();
}
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