dlm: allow multiple lockspace creates

Add a count for lockspace create and release so that create can
be called multiple times to use the lockspace from different places.
Also add the new flag DLM_LSFL_NEWEXCL to create a lockspace with
the previous behavior of returning -EEXIST if the lockspace already
exists.

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

2 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/dlm.h b/include/linux/dlm.h
index 203a025e30e5..b9cd38603fd8 100644
--- a/include/linux/dlm.h
+++ b/include/linux/dlm.h
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -65,9 +65,12 @@ struct dlm_lksb {
         char *   sb_lvbptr;
 };
 
+/* dlm_new_lockspace() flags */
+
 #define DLM_LSFL_NODIR          0x00000001
 #define DLM_LSFL_TIMEWARN       0x00000002
 #define DLM_LSFL_FS             0x00000004
+#define DLM_LSFL_NEWEXCL        0x00000008
 
 #ifdef __KERNEL__
 
diff --git a/include/linux/dlm_device.h b/include/linux/dlm_device.h
index c6034508fed9..3060783c4191 100644
--- a/include/linux/dlm_device.h
+++ b/include/linux/dlm_device.h
@@ -26,7 +26,7 @@
 /* Version of the device interface */
 #define DLM_DEVICE_VERSION_MAJOR 6
 #define DLM_DEVICE_VERSION_MINOR 0
-#define DLM_DEVICE_VERSION_PATCH 0
+#define DLM_DEVICE_VERSION_PATCH 1
 
 /* struct passed to the lock write */
 struct dlm_lock_params {