1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2011, Whamcloud, Inc.
35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
39 #ifndef _LUSTRE_LU_TARGET_H
40 #define _LUSTRE_LU_TARGET_H
42 #include <dt_object.h>
43 #include <lustre_disk.h>
46 struct obd_device *lut_obd;
47 struct dt_device *lut_bottom;
49 struct dt_object *lut_last_rcvd;
50 /* transaction callbacks */
51 struct dt_txn_callback lut_txn_cb;
52 /** server data in last_rcvd file */
53 struct lr_server_data lut_lsd;
54 /** Server last transaction number */
55 __u64 lut_last_transno;
56 /** Lock protecting last transaction number */
57 cfs_spinlock_t lut_translock;
58 /** Lock protecting client bitmap */
59 cfs_spinlock_t lut_client_bitmap_lock;
60 /** Bitmap of known clients */
61 unsigned long *lut_client_bitmap;
64 typedef void (*lut_cb_t)(struct lu_target *lut, __u64 transno,
66 struct lut_commit_cb {
71 void lut_boot_epoch_update(struct lu_target *);
72 int lut_last_commit_cb_add(struct thandle *th, struct lu_target *lut,
73 struct obd_export *exp, __u64 transno);
74 int lut_new_client_cb_add(struct thandle *th, struct obd_export *exp);
75 int lut_init(const struct lu_env *, struct lu_target *,
76 struct obd_device *, struct dt_device *);
77 void lut_fini(const struct lu_env *, struct lu_target *);
78 int lut_client_alloc(struct obd_export *);
79 void lut_client_free(struct obd_export *);
80 #endif /* __LUSTRE_LU_TARGET_H */