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Fix: rcu_barrier(): uninitialized futex field
[userspace-rcu.git]
/
urcu-qsbr.c
diff --git
a/urcu-qsbr.c
b/urcu-qsbr.c
index d02572513139eb5986529328c0066deb319cafc9..d8ae1c1257517645e22ef143b8b23950ff330d1b 100644
(file)
--- a/
urcu-qsbr.c
+++ b/
urcu-qsbr.c
@@
-130,6
+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 (;;) {
+ 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);
/*
@@
-142,8
+144,6
@@
static void wait_for_readers(struct cds_list_head *input_readers,
}
/* Write futex before read reader_gp */
cmm_smp_mb();
}
/* Write futex before read reader_gp */
cmm_smp_mb();
- } else {
- wait_loops++;
}
cds_list_for_each_entry_safe(index, tmp, input_readers, node) {
switch (rcu_reader_state(&index->ctr)) {
}
cds_list_for_each_entry_safe(index, tmp, input_readers, node) {
switch (rcu_reader_state(&index->ctr)) {
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