[PATCH -next v4 0/6] nbd: bugfix and cleanup patches

[Yu Kuai]

Changes in v4
 - in patch 3, return from nbd_handle_reply() with flag cleared if
 request is ready to complete.
 - add reviewed-by tag for patch 1-2, 4-6.
Changes in v3:
 - rewrap to 80 columns where possible in patch 6
Changes in v2:
 - in patch 3, instead of clear and then reset the flag if rq is not
 completed, test first and clear if rq is going to complete.

path 1-2 fix races between nbd setup and module removal.
patch 3 fix io can't be completed in some error path.
patch 4 fix io hung when disconnecting failed.
patch 5 fix sysfs warning about duplicate creation.
patch 6 use pr_err to output error message.

Previous versions:
v1: https://lore.kernel.org/all/20220426130746.885140-1-yukuai3@xxxxxxxxxx/
v2: https://lore.kernel.org/all/20220518122618.1702997-1-yukuai3@xxxxxxxxxx/
v3: https://lore.kernel.org/all/20220521073749.3146892-1-yukuai3@xxxxxxxxxx/

Yu Kuai (5):
  nbd: call genl_unregister_family() first in nbd_cleanup()
  nbd: fix race between nbd_alloc_config() and module removal
  nbd: don't clear 'NBD_CMD_INFLIGHT' flag if request is not completed
  nbd: fix io hung while disconnecting device
  nbd: use pr_err to output error message

Zhang Wensheng (1):
  nbd: fix possible overflow on 'first_minor' in nbd_dev_add()

 drivers/block/nbd.c | 109 +++++++++++++++++++++++++-------------------
 1 file changed, 63 insertions(+), 46 deletions(-)

-- 
2.31.1