From de8a55e500de86bf7c9a2fd4363cbb2f9c4855c3 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Thu, 11 Mar 2010 09:41:30 -0800
Subject: [PATCH] mds: add locallock statemachine

This is just for consistency; it's trivial.  We lost the get_sm()
pointer test, though.
---
 src/mds/SimpleLock.h |  5 ++++-
 src/mds/locks.c      | 13 +++++++++++++
 src/mds/locks.h      |  2 +-
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/mds/SimpleLock.h b/src/mds/SimpleLock.h
index ec3b8b64dcbae..9f04d11908bf5 100644
--- a/src/mds/SimpleLock.h
+++ b/src/mds/SimpleLock.h
@@ -66,6 +66,9 @@ struct LockType {
     case CEPH_LOCK_IFILE:
       sm = &sm_filelock;
       break;
+    case CEPH_LOCK_IVERSION:
+      sm = &sm_locallock;
+      break;
     default:
       sm = 0;
     }
@@ -252,7 +255,7 @@ public:
   }
 
   bool is_stable() {
-    return !get_sm() || get_sm()->states[state].next == 0;
+    return get_sm()->states[state].next == 0;
   }
   int get_next_state() {
     return get_sm()->states[state].next;
diff --git a/src/mds/locks.c b/src/mds/locks.c
index 7b23f6186b2bc..dcc2c3ed1bd77 100644
--- a/src/mds/locks.c
+++ b/src/mds/locks.c
@@ -131,3 +131,16 @@ struct sm_t sm_filelock = {
 	.can_remote_xlock = 0,
 };
 
+
+struct sm_state_t locallock[LOCK_MAX] = {
+                      // stable     loner  rep state  r     rp   rd   wr   l    x    caps(any,loner,xlocker,replica)
+    [LOCK_LOCK]      = { 0,         false, LOCK_LOCK, ANY,  0,   ANY, 0,   ANY, 0,   0,0,0,0 },
+};
+
+struct sm_t sm_locallock = {
+  .states = locallock,
+  .allowed_ever_auth = 0,
+  .allowed_ever_replica = 0,
+  .careful = 0,
+  .can_remote_xlock = 0,
+};
diff --git a/src/mds/locks.h b/src/mds/locks.h
index 7c77cd70e35cc..39f96fab56c12 100644
--- a/src/mds/locks.h
+++ b/src/mds/locks.h
@@ -34,7 +34,7 @@ struct sm_t {
 extern struct sm_t sm_simplelock;
 extern struct sm_t sm_filelock;
 extern struct sm_t sm_scatterlock;
-
+extern struct sm_t sm_locallock;
 
 
 
-- 
2.39.5