dm mpath: send uevents

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

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index dd5ad6310f54..24b2b1e32fae 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>
@@ -857,6 +858,9 @@ 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:
@@ -896,6 +900,9 @@ 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: