[DLM] dumping master locks

Add a new debugfs file that dumps a compact list of mastered locks.
This will be used by a userland daemon to collect state for deadlock
detection.

Also, for the existing function that prints all lock state, lock the rsb
before going through the lock lists since they can be changing in the
course of normal dlm activity.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index a006fa59e7da..f2c85493c0c6 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -470,6 +470,7 @@ struct dlm_ls {
 
         struct dentry           *ls_debug_rsb_dentry; /* debugfs */
         struct dentry           *ls_debug_waiters_dentry; /* debugfs */
+        struct dentry           *ls_debug_master_dentry; /* debugfs */
 
         wait_queue_head_t       ls_uevent_wait; /* user part of join/leave */
         int                     ls_uevent_result;