1 files changed, 57 insertions, 0 deletions
diff --git a/Incremental.c b/Incremental.c
index ed29488..1fcc4f0 100644
--- a/Incremental.c
+++ b/Incremental.c
@@ -882,3 +882,60 @@ int IncrementalRemove(char *devname, int verbose)
 	devlist.disposition = 'r';
 	return Manage_subdevs(ent->dev, mdfd, &devlist, verbose);
 }
+
+/*
+ * IncrementalNewDisk - Check to see if the passed in device belongs to any
+ * DOMAIN entries from the config file, and if so, perform the required
+ * action.
+ *
+ * @devname - The device we are supposed to examine.  This is a currently
+ * non-raid device, decide if we should claim it and if so, perform the
+ * required actions.
+ *
+ * Special note: Due to limitations of the whole hotplug model, any time we
+ * have a partitioned device, the bare drive will get called into this
+ * function because only the partitions will register as already being raid
+ * members, the bare drive itself won't.  We need to be smart enough here
+ * so that even if we have a DOMAIN line that says partition, that we don't
+ * actually do the partitioning if the right partition table is already there.
+ */
+int IncrementalNewDisk(char *devname, int verbose, int export)
+{
+	struct mdstat_ent *mdstat, *md;
+	struct domain_ent *domain;
+
+	domain = conf_get_domain(devname);
+	if (!domain)
+		return 0;
+	if ((domain->action & action_mask) <= incremental)
+		/* Nothing to do.  We only get called in the case that there
+		 * is no current superblock on the device in question, and
+		 * since our matching domain says we should either ignore or
+		 * use devices incrementally, they have to already have a
+		 * superblock.  Since we don't, we're done.
+		 */
+		return 0;
+	if (domain->action == partition) {
+		/* Special case.  Basically, we can only put this action on
+		 * whole disk devices, and since we are partitioning them,
+		 * the whole device necessarily won't ever be part of an
+		 * array, so we will never have any arrays in our domain, ever.
+		 * As such, we have to figure out what to do from other
+		 * hints.
+		 */
+		/* We haven't filled this out yet */
+		return 0;
+	}
+	mdstat = arrays_in_domain(devname, domain);
+	if (!mdstat) {
+		/* As a technical design decision, we *must* have at least one
+		 * array in our domain that we can add this device to or else
+		 * we simply can't do anything with this device.
+		 */
+		printf("No arrays found in domain!\n");
+		return 1;
+	}
+	for (md = mdstat; md; md = md->next)
+		printf(Name ": %s\n", md->dev);
+	return 0;
+}