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53a5553)
[ Comment: now that set_cpu_call_rcu_data() is not racy and detects
overwrites, we can effectively trust its return value and free the
crdp if already set. ]
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
}
call_rcu_unlock(&call_rcu_mutex);
if ((ret = set_cpu_call_rcu_data(i, crdp)) != 0) {
}
call_rcu_unlock(&call_rcu_mutex);
if ((ret = set_cpu_call_rcu_data(i, crdp)) != 0) {
- /* FIXME: Leaks crdp for now. */
- return ret; /* Can happen on race. */
+ call_rcu_data_free(crdp);
+
+ /* it has been created by other thread */
+ if (ret == -EEXIST)
+ continue;
+
+ return ret;