dm mpath: add DM device name to Failing/Reinstating path log messages

When there are many DM multipath devices it really helps to have
additional context for which DM device a failed or reinstated path is
part of.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index b17da30..78cff42 100644 (file)
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1285,7 +1285,9 @@ static int fail_path(struct pgpath *pgpath)
        if (!pgpath->is_active)
                goto out;
 
        if (!pgpath->is_active)
                goto out;
 

-       DMWARN("Failing path %s.", pgpath->path.dev->name);
+       DMWARN("%s: Failing path %s.",
+              dm_device_name(dm_table_get_md(m->ti->table)),
+              pgpath->path.dev->name);

 
        pgpath->pg->ps.type->fail_path(&pgpath->pg->ps, &pgpath->path);
        pgpath->is_active = false;
 
        pgpath->pg->ps.type->fail_path(&pgpath->pg->ps, &pgpath->path);
        pgpath->is_active = false;


@@ -1324,7 +1326,9 @@ static int reinstate_path(struct pgpath *pgpath)
        if (pgpath->is_active)
                goto out;
 
        if (pgpath->is_active)
                goto out;
 

-       DMWARN("Reinstating path %s.", pgpath->path.dev->name);
+       DMWARN("%s: Reinstating path %s.",
+              dm_device_name(dm_table_get_md(m->ti->table)),
+              pgpath->path.dev->name);

 
        r = pgpath->pg->ps.type->reinstate_path(&pgpath->pg->ps, &pgpath->path);
        if (r)
 
        r = pgpath->pg->ps.type->reinstate_path(&pgpath->pg->ps, &pgpath->path);
        if (r)