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-rw-r--r--fs/ocfs2/dlmfs/dlmfs.c2
-rw-r--r--fs/ocfs2/dlmfs/userdlm.c8
-rw-r--r--fs/ocfs2/ocfs2_lockingver.h2
-rw-r--r--fs/ocfs2/stackglue.c18
-rw-r--r--fs/ocfs2/stackglue.h11
5 files changed, 36 insertions, 5 deletions
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index 8697366b63ad..1b0de157a08c 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -87,7 +87,7 @@ struct workqueue_struct *user_dlm_worker;
* - bast : POLLIN against the file descriptor of a held lock
* signifies a bast fired on the lock.
*/
-#define DLMFS_CAPABILITIES "bast"
+#define DLMFS_CAPABILITIES "bast stackglue"
extern int param_set_dlmfs_capabilities(const char *val,
struct kernel_param *kp)
{
diff --git a/fs/ocfs2/dlmfs/userdlm.c b/fs/ocfs2/dlmfs/userdlm.c
index c1b6a56a268f..2858ee6003c7 100644
--- a/fs/ocfs2/dlmfs/userdlm.c
+++ b/fs/ocfs2/dlmfs/userdlm.c
@@ -666,10 +666,10 @@ struct ocfs2_cluster_connection *user_dlm_register(struct qstr *name)
int rc;
struct ocfs2_cluster_connection *conn;
- rc = ocfs2_cluster_connect("o2cb", name->name, name->len,
- &user_dlm_lproto,
- user_dlm_recovery_handler_noop,
- NULL, &conn);
+ rc = ocfs2_cluster_connect_agnostic(name->name, name->len,
+ &user_dlm_lproto,
+ user_dlm_recovery_handler_noop,
+ NULL, &conn);
if (rc)
mlog_errno(rc);
diff --git a/fs/ocfs2/ocfs2_lockingver.h b/fs/ocfs2/ocfs2_lockingver.h
index 82d5eeac0fff..2e45c8d2ea7e 100644
--- a/fs/ocfs2/ocfs2_lockingver.h
+++ b/fs/ocfs2/ocfs2_lockingver.h
@@ -23,6 +23,8 @@
/*
* The protocol version for ocfs2 cluster locking. See dlmglue.c for
* more details.
+ *
+ * 1.0 - Initial locking version from ocfs2 1.4.
*/
#define OCFS2_LOCKING_PROTOCOL_MAJOR 1
#define OCFS2_LOCKING_PROTOCOL_MINOR 0
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 31db2e87cfd4..39abf89697ed 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -373,6 +373,24 @@ out:
}
EXPORT_SYMBOL_GPL(ocfs2_cluster_connect);
+/* The caller will ensure all nodes have the same cluster stack */
+int ocfs2_cluster_connect_agnostic(const char *group,
+ int grouplen,
+ struct ocfs2_locking_protocol *lproto,
+ void (*recovery_handler)(int node_num,
+ void *recovery_data),
+ void *recovery_data,
+ struct ocfs2_cluster_connection **conn)
+{
+ char *stack_name = NULL;
+
+ if (cluster_stack_name[0])
+ stack_name = cluster_stack_name;
+ return ocfs2_cluster_connect(stack_name, group, grouplen, lproto,
+ recovery_handler, recovery_data, conn);
+}
+EXPORT_SYMBOL_GPL(ocfs2_cluster_connect_agnostic);
+
/* If hangup_pending is 0, the stack driver will be dropped */
int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
int hangup_pending)
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index b1981ba4c91f..8ce7398ae1d2 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -246,6 +246,17 @@ int ocfs2_cluster_connect(const char *stack_name,
void *recovery_data),
void *recovery_data,
struct ocfs2_cluster_connection **conn);
+/*
+ * Used by callers that don't store their stack name. They must ensure
+ * all nodes have the same stack.
+ */
+int ocfs2_cluster_connect_agnostic(const char *group,
+ int grouplen,
+ struct ocfs2_locking_protocol *lproto,
+ void (*recovery_handler)(int node_num,
+ void *recovery_data),
+ void *recovery_data,
+ struct ocfs2_cluster_connection **conn);
int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
int hangup_pending);
void ocfs2_cluster_hangup(const char *group, int grouplen);