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ocfs2: Hang the locking proto on the cluster conn and use it in asts.

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With the ocfs2_cluster_connection hanging off of the ocfs2_dlm_lksb, we
have access to it in the ast and bast wrapper functions.  Attach the
ocfs2_locking_protocol to the conn.

Now, instead of refering to a static variable for ast/bast pointers, the
wrappers can look at the connection.  This means different connections
can have different ast/bast pointers, and it reduces the need for the
static pointer.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Joel Becker
2010-01-29 15:46:23 -08:00
parent c0e4133851
commit 110946c8fb
4 changed files with 9 additions and 18 deletions
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15
fs/ocfs2/stack_o2cb.c
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@@ -163,28 +163,21 @@ static void o2dlm_lock_ast_wrapper(void *astarg)
{
struct ocfs2_dlm_lksb *lksb = astarg;
BUG_ON(o2cb_stack.sp_proto == NULL);
o2cb_stack.sp_proto->lp_lock_ast(lksb);
lksb->lksb_conn->cc_proto->lp_lock_ast(lksb);
}
static void o2dlm_blocking_ast_wrapper(void *astarg, int level)
{
struct ocfs2_dlm_lksb *lksb = astarg;
BUG_ON(o2cb_stack.sp_proto == NULL);
o2cb_stack.sp_proto->lp_blocking_ast(lksb, level);
lksb->lksb_conn->cc_proto->lp_blocking_ast(lksb, level);
}
static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status)
{
struct ocfs2_dlm_lksb *lksb = astarg;
int error = dlm_status_to_errno(status);
BUG_ON(o2cb_stack.sp_proto == NULL);
/*
* In o2dlm, you can get both the lock_ast() for the lock being
* granted and the unlock_ast() for the CANCEL failing. A
@@ -199,7 +192,7 @@ static void o2dlm_unlock_ast_wrapper(void *astarg, enum dlm_status status)
if (status == DLM_CANCELGRANT)
return;
o2cb_stack.sp_proto->lp_unlock_ast(lksb, error);
lksb->lksb_conn->cc_proto->lp_unlock_ast(lksb, error);
}
static int o2cb_dlm_lock(struct ocfs2_cluster_connection *conn,
@@ -284,7 +277,7 @@ static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn)
struct dlm_protocol_version fs_version;
BUG_ON(conn == NULL);
BUG_ON(o2cb_stack.sp_proto == NULL);
BUG_ON(conn->cc_proto == NULL);
/* for now we only have one cluster/node, make sure we see it
* in the heartbeat universe */