From 24ef1815e5e13e50196eb1ab8ddc0d783443bdf8 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Tue, 29 Jan 2008 17:37:32 -0800 Subject: ocfs2: Separate out dlm lock functions. This is the first in a series of patches to isolate ocfs2 from the underlying cluster stack. Here we wrap the dlm locking functions with ocfs2-specific calls. Because ocfs2 always uses the same dlm lock status callbacks, we can eliminate the callbacks from the filesystem visible functions. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/stackglue.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 fs/ocfs2/stackglue.h (limited to 'fs/ocfs2/stackglue.h') diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h new file mode 100644 index 0000000..40a0024 --- /dev/null +++ b/fs/ocfs2/stackglue.h @@ -0,0 +1,45 @@ +/* -*- mode: c; c-basic-offset: 8; -*- + * vim: noexpandtab sw=8 ts=8 sts=0: + * + * stackglue.h + * + * Glue to the underlying cluster stack. + * + * Copyright (C) 2007 Oracle. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + + +#ifndef STACKGLUE_H +#define STACKGLUE_H + +struct ocfs2_locking_protocol { + void (*lp_lock_ast)(void *astarg); + void (*lp_blocking_ast)(void *astarg, int level); + void (*lp_unlock_ast)(void *astarg, enum dlm_status status); +}; + +enum dlm_status ocfs2_dlm_lock(struct dlm_ctxt *dlm, + int mode, + struct dlm_lockstatus *lksb, + u32 flags, + void *name, + unsigned int namelen, + void *astarg); +enum dlm_status ocfs2_dlm_unlock(struct dlm_ctxt *dlm, + struct dlm_lockstatus *lksb, + u32 flags, + void *astarg); + +void o2cb_get_stack(struct ocfs2_locking_protocol *proto); +void o2cb_put_stack(void); + +#endif /* STACKGLUE_H */ -- cgit v1.1