Pull dlm updates from David Teigland:

 - New flag DLM_LSFL_SOFTIRQ_SAFE can be set by code using dlm to
   indicate callbacks can be run from softirq

 - Change md-cluster to set DLM_LSFL_SOFTIRQ_SAFE

 - Clean up for previous changes, e.g. unused code and parameters

 - Remove custom pre-allocation of rsb structs which is unnecessary with
   kmem caches

 - Change idr to xarray for lkb structs in use

 - Change idr to xarray for rsb structs being recovered

 - Change outdated naming related to internal rsb states

 - Fix some incorrect add/remove of rsb on scan list

 - Use rcu to free rsb structs

* tag 'dlm-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: add rcu_barrier before destroy kmem cache
  dlm: remove DLM_LSFL_SOFTIRQ from exflags
  fs: dlm: remove unused struct 'dlm_processed_nodes'
  md-cluster: use DLM_LSFL_SOFTIRQ for dlm_new_lockspace()
  dlm: implement LSFL_SOFTIRQ_SAFE
  dlm: introduce DLM_LSFL_SOFTIRQ_SAFE
  dlm: use LSFL_FS to check for kernel lockspace
  dlm: use rcu to avoid an extra rsb struct lookup
  dlm: fix add_scan and del_scan usage
  dlm: change list and timer names
  dlm: move recover idr to xarray datastructure
  dlm: move lkb idr to xarray datastructure
  dlm: drop own rsb pre allocation mechanism
  dlm: remove ls_local_handle from struct dlm_ls
  dlm: remove unused parameter in dlm_midcomms_addr
  dlm: don't kref_init rsbs created for toss list
  dlm: remove scand leftovers