Merge tag 'dlm-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:
 "This set includes a number of minor fixes and cleanups related to the
  networking changes in the last release.

  A patch to delay ack messages reduces network traffic significantly"

* tag 'dlm-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  fs: dlm: avoid comms shutdown delay in release_lockspace
  fs: dlm: fix return -EINTR on recovery stopped
  fs: dlm: implement delayed ack handling
  fs: dlm: move receive loop into receive handler
  fs: dlm: fix multiple empty writequeue alloc
  fs: dlm: generic connect func
  fs: dlm: auto load sctp module
  fs: dlm: introduce generic listen
  fs: dlm: move to static proto ops
  fs: dlm: introduce con_next_wq helper
  fs: dlm: cleanup and remove _send_rcom
  fs: dlm: clear CF_APP_LIMITED on close
  fs: dlm: fix typo in tlv prefix
  fs: dlm: use READ_ONCE for config var
  fs: dlm: use sk->sk_socket instead of con->sock

Author: torvalds

fs/dlm/dir.c

@@ -85,8 +85,10 @@ int dlm_recover_directory(struct dlm_ls *ls)
 		for (;;) {
 			int left;
 			error = dlm_recovery_stopped(ls);
-			if (error)
+			if (error) {
+				error = -EINTR;
 				goto out_free;
+			}
 
 			error = dlm_rcom_names(ls, memb->nodeid,
 					       last_name, last_len);

fs/dlm/dlm_internal.h

@@ -468,7 +468,7 @@ struct dlm_rcom {
 struct dlm_opt_header {
 	uint16_t	t_type;
 	uint16_t	t_length;
-	uint32_t	o_pad;
+	uint32_t	t_pad;
 	/* need to be 8 byte aligned */
 	char		t_value[];
 };

fs/dlm/lockspace.c

@@ -498,7 +498,7 @@ static int new_lockspace(const char *name, const char *cluster,
 	ls->ls_exflags = (flags & ~(DLM_LSFL_TIMEWARN | DLM_LSFL_FS |
 				    DLM_LSFL_NEWEXCL));
 
-	size = dlm_config.ci_rsbtbl_size;
+	size = READ_ONCE(dlm_config.ci_rsbtbl_size);
 	ls->ls_rsbtbl_size = size;
 
 	ls->ls_rsbtbl = vmalloc(array_size(size, sizeof(struct dlm_rsbtable)));
@@ -793,6 +793,7 @@ static int release_lockspace(struct dlm_ls *ls, int force)
 
 	if (ls_count == 1) {
 		dlm_scand_stop();
+		dlm_clear_members(ls);
 		dlm_midcomms_shutdown();
 	}