--wait or -W will wait for resync activity to finish on the given devices.

[thirdparty/mdadm.git] / Monitor.c

diff --git a/Monitor.c b/Monitor.c
index 315fee2548cb03a8b3459b49428dcad7d24bdeed..5091c51b3c7d091bd044fa35c7b555288e6d3f65 100644 (file)
--- a/Monitor.c
+++ b/Monitor.c
@@ -553,3 +553,38 @@ static void alert(char *event, char *dev, char *disc, char *mailaddr, char *mail
                        syslog(priority, "%s event detected on md device %s", event, dev);
        }
 }
+
+/* Not really Monitor but ... */
+int Wait(char *dev)
+{
+       struct stat stb;
+       int devnum;
+       int rv = 1;
+
+       if (stat(dev, &stb) != 0) {
+               fprintf(stderr, Name ": Cannot find %s: %s\n", dev,
+                       strerror(errno));
+               return 2;
+       }
+       if (major(stb.st_rdev) == MD_MAJOR)
+               devnum = minor(stb.st_rdev);
+       else
+               devnum = -minor(stb.st_rdev)/16;
+
+       while(1) {
+               struct mdstat_ent *ms = mdstat_read(1, 0);
+               struct mdstat_ent *e;
+
+               for (e=ms ; e; e=e->next)
+                       if (e->devnum == devnum)
+                               break;
+
+               if (!e || e->percent < 0) {
+                       free_mdstat(ms);
+                       return rv;
+               }
+               free(ms);
+               rv = 0;
+               mdstat_wait(5);
+       }
+}