ocfs2: Create the lock status block union.
Wrap the lock status block (lksb) in a union. Later we will add a union
element for the fs/dlm lksb. Create accessors for the status and lvb
fields.
Other than a debugging function, dlmglue.c does not directly reference
the o2dlm locking path anymore.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 0aec2fc..eb88854 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -199,7 +199,7 @@
int ocfs2_dlm_lock(struct dlm_ctxt *dlm,
int mode,
- struct dlm_lockstatus *lksb,
+ union ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen,
@@ -212,15 +212,16 @@
BUG_ON(lproto == NULL);
- status = dlmlock(dlm, o2dlm_mode, lksb, o2dlm_flags, name, namelen,
- o2dlm_lock_ast_wrapper, astarg,
- o2dlm_blocking_ast_wrapper);
+ status = dlmlock(dlm, o2dlm_mode, &lksb->lksb_o2dlm, o2dlm_flags,
+ name, namelen,
+ o2dlm_lock_ast_wrapper, astarg,
+ o2dlm_blocking_ast_wrapper);
ret = dlm_status_to_errno(status);
return ret;
}
int ocfs2_dlm_unlock(struct dlm_ctxt *dlm,
- struct dlm_lockstatus *lksb,
+ union ocfs2_dlm_lksb *lksb,
u32 flags,
void *astarg)
{
@@ -230,12 +231,26 @@
BUG_ON(lproto == NULL);
- status = dlmunlock(dlm, lksb, o2dlm_flags,
- o2dlm_unlock_ast_wrapper, astarg);
+ status = dlmunlock(dlm, &lksb->lksb_o2dlm, o2dlm_flags,
+ o2dlm_unlock_ast_wrapper, astarg);
ret = dlm_status_to_errno(status);
return ret;
}
+int ocfs2_dlm_lock_status(union ocfs2_dlm_lksb *lksb)
+{
+ return dlm_status_to_errno(lksb->lksb_o2dlm.status);
+}
+
+/*
+ * Why don't we cast to ocfs2_meta_lvb? The "clean" answer is that we
+ * don't cast at the glue level. The real answer is that the header
+ * ordering is nigh impossible.
+ */
+void *ocfs2_dlm_lvb(union ocfs2_dlm_lksb *lksb)
+{
+ return (void *)(lksb->lksb_o2dlm.lvb);
+}
void o2cb_get_stack(struct ocfs2_locking_protocol *proto)
{