From: dwysocha@redhat.com <dwysocha@redhat.com>
Date: Tue, 18 Dec 2007 23:47:59 -0500
Subject: [md] dm-mpath: send uevents for path fail/reinstate
Message-id: 20071219044942.143063542@redhat.com
O-Subject: [RHEL5.2 PATCH 5/5] bz#184778: dm-mpath - send uevents for path fail / reinstate
Bugzilla: 184778

This patch adds calls to dm_path_event for a failed path and a reinstated
path.

Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Acked-by: Dave Wysochanski <dwysocha@redhat.com>

Acked-by: Alasdair G Kergon <agk@redhat.com>

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 7a264b6..679bc96 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -10,6 +10,7 @@
 #include "dm-hw-handler.h"
 #include "dm-bio-list.h"
 #include "dm-bio-record.h"
+#include "dm-uevent.h"
 
 #include <linux/ctype.h>
 #include <linux/init.h>
@@ -855,6 +856,9 @@ static int fail_path(struct pgpath *pgpath)
 	if (pgpath == m->current_pgpath)
 		m->current_pgpath = NULL;
 
+	dm_path_uevent(DM_UEVENT_PATH_FAILED, m->ti,
+		      pgpath->path.dev->name, m->nr_valid_paths);
+
 	queue_work(kmultipathd, &m->trigger_event);
 
 out:
@@ -894,6 +898,9 @@ static int reinstate_path(struct pgpath *pgpath)
 	if (!m->nr_valid_paths++ && m->queue_size)
 		queue_work(kmultipathd, &m->process_queued_ios);
 
+	dm_path_uevent(DM_UEVENT_PATH_REINSTATED, m->ti,
+		      pgpath->path.dev->name, m->nr_valid_paths);
+
 	queue_work(kmultipathd, &m->trigger_event);
 
 out: