4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Heinz Mauelshagen heinzm@redhat.com
[ Upstream commit c44a5ee803d2b7ed8c2e6ce24a5c4dd60778886e ]
Update superblock when particular devices are requested via rebuild (e.g. lvconvert --replace ...) to avoid spurious failure with the "New device injected into existing raid set without 'delta_disks' or 'rebuild' parameter specified" error message.
Signed-off-by: Heinz Mauelshagen heinzm@redhat.com Signed-off-by: Mike Snitzer snitzer@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/dm-raid.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -2880,6 +2880,11 @@ static int raid_ctr(struct dm_target *ti set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); rs_set_new(rs); } else if (rs_is_recovering(rs)) { + /* Rebuild particular devices */ + if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) { + set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); + rs_setup_recovery(rs, MaxSector); + } /* A recovering raid set may be resized */ ; /* skip setup rs */ } else if (rs_is_reshaping(rs)) {