From 629e749b569bebf3e8fa841b9c62f70e545c5db6 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 11 Jul 2012 13:29:47 -0700
Subject: [PATCH] --- yaml --- r: 312667 b: refs/heads/master c:
 182a9e2cef7bb7017f95bd1b9f27fb81b97f07de h: refs/heads/master i:   312665:
 085cf4f4e26d1864127468690bf835ed7282f95b   312663:
 a4b059b395debfeb378c6c6b3a0a798b62bc9cd8 v: v3

---
 [refs]                                      |  2 +-
 trunk/drivers/target/target_core_configfs.c | 38 +++++++++++++++++++++
 2 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 10ef9f80ba84..c0030d857981 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 14150a6bbe9e15ce8e7a4f79047c2b4284a51b3d
+refs/heads/master: 182a9e2cef7bb7017f95bd1b9f27fb81b97f07de
diff --git a/trunk/drivers/target/target_core_configfs.c b/trunk/drivers/target/target_core_configfs.c
index 37c4bf3be43a..801efa892046 100644
--- a/trunk/drivers/target/target_core_configfs.c
+++ b/trunk/drivers/target/target_core_configfs.c
@@ -122,9 +122,47 @@ static struct config_group *target_core_register_fabric(
 	const char *name)
 {
 	struct target_fabric_configfs *tf;
+	int ret;
 
 	pr_debug("Target_Core_ConfigFS: REGISTER -> group: %p name:"
 			" %s\n", group, name);
+	/*
+	 * Below are some hardcoded request_module() calls to automatically
+	 * local fabric modules when the following is called:
+	 *
+	 * mkdir -p /sys/kernel/config/target/$MODULE_NAME
+	 *
+	 * Note that this does not limit which TCM fabric module can be
+	 * registered, but simply provids auto loading logic for modules with
+	 * mkdir(2) system calls with known TCM fabric modules.
+	 */
+	if (!strncmp(name, "iscsi", 5)) {
+		/*
+		 * Automatically load the LIO Target fabric module when the
+		 * following is called:
+		 *
+		 * mkdir -p $CONFIGFS/target/iscsi
+		 */
+		ret = request_module("iscsi_target_mod");
+		if (ret < 0) {
+			pr_err("request_module() failed for"
+				" iscsi_target_mod.ko: %d\n", ret);
+			return ERR_PTR(-EINVAL);
+		}
+	} else if (!strncmp(name, "loopback", 8)) {
+		/*
+		 * Automatically load the tcm_loop fabric module when the
+		 * following is called:
+		 *
+		 * mkdir -p $CONFIGFS/target/loopback
+		 */
+		ret = request_module("tcm_loop");
+		if (ret < 0) {
+			pr_err("request_module() failed for"
+				" tcm_loop.ko: %d\n", ret);
+			return ERR_PTR(-EINVAL);
+		}
+	}
 
 	tf = target_core_get_fabric(name);
 	if (!tf) {