linux-kernel - [2.6.24 PATCH 04/04] dm mpath: send uevents

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Date:	Wed, 17 Oct 2007 13:55:11 +0100
From:	Alasdair G Kergon <agk@...hat.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	dm-devel@...hat.com, linux-kernel@...r.kernel.org,
	Mike Anderson <andmike@...ux.vnet.ibm.com>
Subject: [2.6.24 PATCH 04/04] dm mpath: send uevents

From: Mike Anderson <andmike@...ux.vnet.ibm.com>

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

Signed-off-by: Mike Anderson <andmike@...ux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@...hat.com>
---

 drivers/md/dm-mpath.c |    7 +++++++
 1 files changed, 7 insertions(+)

Index: linux-2.6.23/drivers/md/dm-mpath.c
===================================================================
--- linux-2.6.23.orig/drivers/md/dm-mpath.c	2007-10-16 23:39:02.000000000 +0100
+++ linux-2.6.23/drivers/md/dm-mpath.c	2007-10-16 23:39:06.000000000 +0100
@@ -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 *pgpa
 	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 
 	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:
-
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