} else {
struct marker_probe_closure *multi;
int i;
+ /*
+ * Read mdata->ptype before mdata->multi.
+ */
+ smp_rmb();
+ multi = mdata->multi;
/*
* multi points to an array, therefore accessing the array
* depends on reading multi. However, even in this case,
* in the fast path, so put the explicit barrier here.
*/
smp_read_barrier_depends();
- multi = mdata->multi;
for (i = 0; multi[i].func; i++) {
va_start(args, call_private);
multi[i].func(multi[i].probe_private, call_private,
} else {
struct marker_probe_closure *multi;
int i;
+ /*
+ * Read mdata->ptype before mdata->multi.
+ */
+ smp_rmb();
+ multi = mdata->multi;
/*
* multi points to an array, therefore accessing the array
* depends on reading multi. However, even in this case,
* in the fast path, so put the explicit barrier here.
*/
smp_read_barrier_depends();
- multi = mdata->multi;
for (i = 0; multi[i].func; i++)
multi[i].func(multi[i].probe_private, call_private,
mdata->format, &args);
hlist_del(&e->hlist);
/* Make sure the call_rcu has been executed */
if (e->rcu_pending)
- rcu_barrier();
+ rcu_barrier_sched();
kfree(e);
return 0;
}
hlist_del(&(*entry)->hlist);
/* Make sure the call_rcu has been executed */
if ((*entry)->rcu_pending)
- rcu_barrier();
+ rcu_barrier_sched();
kfree(*entry);
*entry = e;
trace_mark(core_marker_format, "name %s format %s",
* make sure it's executed now.
*/
if (entry->rcu_pending)
- rcu_barrier();
+ rcu_barrier_sched();
old = marker_entry_add_probe(entry, probe, probe_private);
if (IS_ERR(old)) {
ret = PTR_ERR(old);
entry->rcu_pending = 1;
/* write rcu_pending before calling the RCU callback */
smp_wmb();
-#ifdef CONFIG_PREEMPT_RCU
- synchronize_sched(); /* Until we have the call_rcu_sched() */
-#endif
- call_rcu(&entry->rcu, free_old_closure);
+ call_rcu_sched(&entry->rcu, free_old_closure);
end:
mutex_unlock(&markers_mutex);
return ret;
if (!entry)
goto end;
if (entry->rcu_pending)
- rcu_barrier();
+ rcu_barrier_sched();
old = marker_entry_remove_probe(entry, probe, probe_private);
mutex_unlock(&markers_mutex);
marker_update_probes(); /* may update entry */
entry->rcu_pending = 1;
/* write rcu_pending before calling the RCU callback */
smp_wmb();
-#ifdef CONFIG_PREEMPT_RCU
- synchronize_sched(); /* Until we have the call_rcu_sched() */
-#endif
- call_rcu(&entry->rcu, free_old_closure);
+ call_rcu_sched(&entry->rcu, free_old_closure);
remove_marker(name); /* Ignore busy error message */
ret = 0;
end:
goto end;
}
if (entry->rcu_pending)
- rcu_barrier();
+ rcu_barrier_sched();
old = marker_entry_remove_probe(entry, NULL, probe_private);
mutex_unlock(&markers_mutex);
marker_update_probes(); /* may update entry */
entry->rcu_pending = 1;
/* write rcu_pending before calling the RCU callback */
smp_wmb();
-#ifdef CONFIG_PREEMPT_RCU
- synchronize_sched(); /* Until we have the call_rcu_sched() */
-#endif
- call_rcu(&entry->rcu, free_old_closure);
+ call_rcu_sched(&entry->rcu, free_old_closure);
remove_marker(entry->name); /* Ignore busy error message */
end:
mutex_unlock(&markers_mutex);