X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=block%2Felevator.c;h=88318c383608defa5018bdfa929918c767c8d7fa;hb=513694b5f931a62561d21eb97a4740ce37464a45;hp=bafbae0344d319e909e3e7add07467b1c0463a73;hpb=70ec75c5b8e0bda7a16fb387f91e08545f379a0e;p=mirror_ubuntu-artful-kernel.git

diff --git a/block/elevator.c b/block/elevator.c
index bafbae0344d3..88318c383608 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -134,6 +134,21 @@ static struct elevator_type *elevator_get(const char *name)
 	spin_lock(&elv_list_lock);
 
 	e = elevator_find(name);
+	if (!e) {
+		char elv[ELV_NAME_MAX + strlen("-iosched")];
+
+		spin_unlock(&elv_list_lock);
+
+		if (!strcmp(name, "anticipatory"))
+			sprintf(elv, "as-iosched");
+		else
+			sprintf(elv, "%s-iosched", name);
+
+		request_module(elv);
+		spin_lock(&elv_list_lock);
+		e = elevator_find(name);
+	}
+
 	if (e && !try_module_get(e->elevator_owner))
 		e = NULL;