mdmon: ping will wait for manage_mon to catch up.

[thirdparty/mdadm.git] / managemon.c

diff --git a/managemon.c b/managemon.c
index 447d8ea0001f19e51cbf7e6291b71783aff42a5f..c947552eb7161d69a7aa7f358962ed46d3c84097 100644 (file)
--- a/managemon.c
+++ b/managemon.c
@@ -436,7 +436,15 @@ static void handle_message(struct supertype *container, struct metadata_update *
        struct metadata_update *mu;
 
        if (msg->len == 0) {
+               int cnt = monitor_loop_cnt;
+               if (cnt & 1)
+                       cnt += 2; /* wait until next pselect */
+               else
+                       cnt += 3; /* wait for 2 pselects */
+               wakeup_monitor();
                wait_update_handled();
+               while (monitor_loop_cnt - cnt < 0)
+                       usleep(10 * 1000);
        } else {
                mu = malloc(sizeof(*mu));
                mu->len = msg->len;