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ocfs2: Pass the locking protocol into ocfs2_cluster_connect().

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Inside the stackglue, the locking protocol structure is hanging off of
the ocfs2_cluster_connection.  This takes it one further; the locking
protocol is passed into ocfs2_cluster_connect().  Now different cluster
connections can have different locking protocols with distinct asts.
Note that all locking protocols have to keep their maximum protocol
version in lock-step.

With the protocol structure set in ocfs2_cluster_connect(), there is no
need for the stackglue to have a static pointer to a specific protocol
structure.  We can change initialization to only pass in the maximum
protocol version.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Joel Becker
2010-01-29 17:19:06 -08:00
parent e603cfb074
commit 553b5eb91a
3 changed files with 110 additions and 104 deletions
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3
fs/ocfs2/stackglue.h
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@@ -241,6 +241,7 @@ struct ocfs2_stack_plugin {
int ocfs2_cluster_connect(const char *stack_name,
const char *group,
int grouplen,
struct ocfs2_locking_protocol *lproto,
void (*recovery_handler)(int node_num,
void *recovery_data),
void *recovery_data,
@@ -270,7 +271,7 @@ int ocfs2_stack_supports_plocks(void);
int ocfs2_plock(struct ocfs2_cluster_connection *conn, u64 ino,
struct file *file, int cmd, struct file_lock *fl);
void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto);
void ocfs2_stack_glue_set_max_proto_version(struct ocfs2_protocol_version *max_proto);
/* Used by stack plugins */