Merge tag 'dlm-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:

 - Remove some unused features (related to lock timeouts) that have been
   previously scheduled for removal

 - Fix a bug where the pending callback flag would be incorrectly
   cleared, which could potentially result in missing a completion
   callback

 - Use an unbound workqueue for dlm socket handling so that socket
   operations can be processed with less delay

 - Fix possible lockspace join connection errors with large clusters
   (e.g. over 16 nodes) caused by a small socket backlog setting

 - Use atomic bit ops for internal flags to help avoid mistakes copying
   flag values from messages

 - Fix recently introduced bug where memory for lvb data could be
   unnecessarily allocated for a lock

* tag 'dlm-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  fs: dlm: stop unnecessarily filling zero ms_extra bytes
  fs: dlm: switch lkb_sbflags to atomic ops
  fs: dlm: rsb hash table flag value to atomic ops
  fs: dlm: move internal flags to atomic ops
  fs: dlm: change dflags to use atomic bits
  fs: dlm: store lkb distributed flags into own value
  fs: dlm: remove DLM_IFL_LOCAL_MS flag
  fs: dlm: rename stub to local message flag
  fs: dlm: remove deprecated code parts
  DLM: increase socket backlog to avoid hangs with 16 nodes
  fs: dlm: add unbound flag to dlm_io workqueue
  fs: dlm: fix DLM_IFL_CB_PENDING gets overwritten