-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
-
- * 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 version 2 for more details. A copy is
- * included in the COPYING file that accompanied this code.
+/* SPDX-License-Identifier: GPL-2.0 */
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * GPL HEADER END
- */
/*
* Copyright (c) 2012, 2014, Intel Corporation.
*/
+
/*
- * lustre/obdclass/local_storage.c
+ * This file is part of Lustre, http://www.lustre.org/
*
* Local storage for file/objects with fid generation. Works on top of OSD.
*
* Author: Mikhail Pershin <mike.pershin@intel.com>
*/
+
#ifndef __LOCAL_STORAGE_H
#define __LOCAL_STORAGE_H
/* all initialized ls_devices on this node linked by this */
struct list_head ls_linkage;
/* how many handle's reference this local storage */
- atomic_t ls_refcount;
+ struct kref ls_refcount;
/* underlaying OSD device */
struct dt_device *ls_osd;
/* list of all local OID storages */
static inline struct ls_device *dt2ls_dev(struct dt_device *d)
{
- return container_of0(d, struct ls_device, ls_top_dev);
+ return container_of_safe(d, struct ls_device, ls_top_dev);
}
struct ls_object {
static inline struct ls_object *lu2ls_obj(struct lu_object *o)
{
- return container_of0(o, struct ls_object, ls_obj.do_lu);
+ return container_of_safe(o, struct ls_object, ls_obj.do_lu);
}
static inline struct dt_object *ls_locate(const struct lu_env *env,
&ls->ls_top_dev.dd_lu_dev, conf);
}
-struct ls_device *ls_device_get(struct dt_device *dev);
+struct ls_device *ls_device_find_or_init(struct dt_device *dev);
void ls_device_put(const struct lu_env *env, struct ls_device *ls);
struct local_oid_storage *dt_los_find(struct ls_device *ls, __u64 seq);
void dt_los_put(struct local_oid_storage *los);