ocfs2: add fsdlm to stackglue
Add code to use fs/dlm.
[ Modified to be part of the stack_user module -- Joel ]
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index d88bc65..005e4f1 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -26,6 +26,7 @@
#include <linux/dlmconstants.h>
#include "dlm/dlmapi.h"
+#include <linux/dlm.h>
/*
* dlmconstants.h does not have a LOCAL flag. We hope to remove it
@@ -60,6 +61,17 @@
void (*lp_unlock_ast)(void *astarg, int error);
};
+
+/*
+ * The dlm_lockstatus struct includes lvb space, but the dlm_lksb struct only
+ * has a pointer to separately allocated lvb space. This struct exists only to
+ * include in the lksb union to make space for a combined dlm_lksb and lvb.
+ */
+struct fsdlm_lksb_plus_lvb {
+ struct dlm_lksb lksb;
+ char lvb[DLM_LVB_LEN];
+};
+
/*
* A union of all lock status structures. We define it here so that the
* size of the union is known. Lock status structures are embedded in
@@ -67,6 +79,8 @@
*/
union ocfs2_dlm_lksb {
struct dlm_lockstatus lksb_o2dlm;
+ struct dlm_lksb lksb_fsdlm;
+ struct fsdlm_lksb_plus_lvb padding;
};
/*
@@ -221,17 +235,18 @@
void ocfs2_cluster_hangup(const char *group, int grouplen);
int ocfs2_cluster_this_node(unsigned int *node);
+struct ocfs2_lock_res;
int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
union ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen,
- void *astarg);
+ struct ocfs2_lock_res *astarg);
int ocfs2_dlm_unlock(struct ocfs2_cluster_connection *conn,
union ocfs2_dlm_lksb *lksb,
u32 flags,
- void *astarg);
+ struct ocfs2_lock_res *astarg);
int ocfs2_dlm_lock_status(union ocfs2_dlm_lksb *lksb);
void *ocfs2_dlm_lvb(union ocfs2_dlm_lksb *lksb);
