[PATCH V3 0/2] md: call del_gendisk in sync way

[Xiao Ni <xni@redhat.com>]

Now del_gendisk is called in a queue work which has a small window
that mdadm --stop command exits but the device node still exists.
It causes trouble in regression tests. This patch set tries to resolve
this problem.

By the way, this change will cause a regression problem and which will
be fixed by https://github.com/md-raid-utilities/mdadm/pull/182

v1: replace MD_DELETED with MD_CLOSING
v2: keep MD_CLOSING
v3: call den_gendisk in mddev_unlock, and remove ->to_remove in stop path
and adjust the order of patches

Xiao Ni (3):
  md: call del_gendisk in control path
  md: Don't clear MD_CLOSING until mddev is freed
  md: remove/add redundancy group only in level change

 drivers/md/md.c | 71 +++++++++++++++++++++++++------------------------
 drivers/md/md.h | 26 ++++++++++++++++--
 2 files changed, 60 insertions(+), 37 deletions(-)

-- 
2.32.0 (Apple Git-132)