Merge tag 'dlm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:

 - Allow blocking posix lock requests to be interrupted while waiting.
   This requires a cancel request to be sent to the userspace daemon
   where posix lock requests are processed across the cluster.

 - Fix a posix lock patch from the previous cycle in which lock requests
   from different file systems could be mixed up.

 - Fix some long standing problems with nfs posix lock cancelation.

 - Add a new debugfs file for printing queued callbacks.

 - Stop modifying buffers that have been used to receive a message.

 - Misc cleanups and some refactoring.

* tag 'dlm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: fix plock lookup when using multiple lockspaces
  fs: dlm: don't use RCOM_NAMES for version detection
  fs: dlm: create midcomms nodes when configure
  fs: dlm: constify receive buffer
  fs: dlm: drop rxbuf manipulation in dlm_recover_master_copy
  fs: dlm: drop rxbuf manipulation in dlm_copy_master_names
  fs: dlm: get recovery sequence number as parameter
  fs: dlm: cleanup lock order
  fs: dlm: remove clear_members_cb
  fs: dlm: add plock dev tracepoints
  fs: dlm: check on plock ops when exit dlm
  fs: dlm: debugfs for queued callbacks
  fs: dlm: remove unused processed_nodes
  fs: dlm: add missing spin_unlock
  fs: dlm: fix F_CANCELLK to cancel pending request
  fs: dlm: allow to F_SETLKW getting interrupted
  fs: dlm: remove twice newline

1 files changed, 3 insertions, 10 deletions

diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index 05d4414d0c33..9b76ee66aeb2 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -738,18 +738,11 @@ static int user_plock(struct ocfs2_cluster_connection *conn,
 	 *
 	 * Internally, fs/dlm will pass these to a misc device, which
 	 * a userspace daemon will read and write to.
-	 *
-	 * For now, cancel requests (which happen internally only),
-	 * are turned into unlocks. Most of this function taken from
-	 * gfs2_lock.
 	 */
 
-	if (cmd == F_CANCELLK) {
-		cmd = F_SETLK;
-		fl->fl_type = F_UNLCK;
-	}
-
-	if (IS_GETLK(cmd))
+	if (cmd == F_CANCELLK)
+		return dlm_posix_cancel(conn->cc_lockspace, ino, file, fl);
+	else if (IS_GETLK(cmd))
 		return dlm_posix_get(conn->cc_lockspace, ino, file, fl);
 	else if (fl->fl_type == F_UNLCK)
 		return dlm_posix_unlock(conn->cc_lockspace, ino, file, fl);