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authorDavid Teigland <teigland@redhat.com>2008-02-21 01:29:27 +0300
committerMark Fasheh <mfasheh@suse.com>2008-04-18 19:56:07 +0400
commitcf4d8d75d8aba537a19b313a9364fd08ddbd5622 (patch)
tree8d07679a7a28375784b0ae9461ccea3d42aaafe5 /fs/ocfs2/stackglue.h
parentd4b95eef4dc4a59bcd42bdf783638a2eaa57b4c8 (diff)
downloadlinux-cf4d8d75d8aba537a19b313a9364fd08ddbd5622.tar.xz
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>
Diffstat (limited to 'fs/ocfs2/stackglue.h')
-rw-r--r--fs/ocfs2/stackglue.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index d88bc655644b..005e4f170e0f 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 @@ struct ocfs2_locking_protocol {
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 @@ struct ocfs2_locking_protocol {
*/
union ocfs2_dlm_lksb {
struct dlm_lockstatus lksb_o2dlm;
+ struct dlm_lksb lksb_fsdlm;
+ struct fsdlm_lksb_plus_lvb padding;
};
/*
@@ -221,17 +235,18 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
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);