Commit ec31f3f7 authored Feb 20, 2016 by Mike Snitzer

dm mpath: cleanup reinstate_path() et al based on code review



fail_path() will print a "Failing path ..." message but reinstate_path()
doesn't print a "Reinstating path ...".  Add that message to
reinstate_path() to add symmetry and aid system debugging.

Remove reinstate_path()'s check for the path_selector providing
.reinstate_path hook.  All path selectors provide this and any future
ones must too.

activate_path() calls pg_init_done() with SCSI_DH_DEV_OFFLINED but
pg_init_done() doesn't expicitly handle it in its swicth statement.  Add
SCSI_DH_DEV_OFFLINED to the default case.

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

parent 9f54cec5

drivers/md/dm-mpath.c

+2 −6

Original line number	Diff line number	Diff line
		@@ -1017,12 +1017,7 @@ static int reinstate_path(struct pgpath *pgpath)
		if (pgpath->is_active)
		goto out;

		if (!pgpath->pg->ps.type->reinstate_path) {
		DMWARN("Reinstate path not supported by path selector %s",
		pgpath->pg->ps.type->name);
		r = -EINVAL;
		goto out;
		}
		DMWARN("Reinstating path %s.", pgpath->path.dev->name);

		r = pgpath->pg->ps.type->reinstate_path(&pgpath->pg->ps, &pgpath->path);
		if (r)
		@@ -1207,6 +1202,7 @@ static void pg_init_done(void *data, int errors)
		fail_path(pgpath);
		errors = 0;
		break;
		case SCSI_DH_DEV_OFFLINED:
		default:
		/*
		* We probably do not want to fail the path for a device