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rculist: allow reverse RCU traversal
[urcu.git]
/
urcu-qsbr.c
diff --git
a/urcu-qsbr.c
b/urcu-qsbr.c
index d6adc5bfaafa9d4d851842bad7d398967b081eec..71e7a39e6f73795026e054bf8f0620772ec9a70f 100644
(file)
--- a/
urcu-qsbr.c
+++ b/
urcu-qsbr.c
@@
-121,7
+121,7
@@
static void wait_for_readers(struct cds_list_head *input_readers,
struct cds_list_head *cur_snap_readers,
struct cds_list_head *qsreaders)
{
struct cds_list_head *cur_snap_readers,
struct cds_list_head *qsreaders)
{
- int wait_loops = 0;
+
unsigned
int wait_loops = 0;
struct rcu_reader *index, *tmp;
/*
struct rcu_reader *index, *tmp;
/*
@@
-130,7
+130,8
@@
static void wait_for_readers(struct cds_list_head *input_readers,
* current rcu_gp.ctr value.
*/
for (;;) {
* current rcu_gp.ctr value.
*/
for (;;) {
- wait_loops++;
+ if (wait_loops < RCU_QS_ACTIVE_ATTEMPTS)
+ wait_loops++;
if (wait_loops >= RCU_QS_ACTIVE_ATTEMPTS) {
uatomic_set(&rcu_gp.futex, -1);
/*
if (wait_loops >= RCU_QS_ACTIVE_ATTEMPTS) {
uatomic_set(&rcu_gp.futex, -1);
/*
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