1 /*
2 * GPL HEADER START
3 *
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 *
24 * GPL HEADER END
25 */
26 /*
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
29 *
30 * Copyright (c) 2012, Intel Corporation.
31 */
32 /*
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
35 */
36
37 #ifndef __LLOG_INTERNAL_H__
38 #define __LLOG_INTERNAL_H__
39
40 #include "../include/lustre_log.h"
41
42 struct llog_process_info {
43 struct llog_handle *lpi_loghandle;
44 llog_cb_t lpi_cb;
45 void *lpi_cbdata;
46 void *lpi_catdata;
47 int lpi_rc;
48 struct completion lpi_completion;
49 const struct lu_env *lpi_env;
50
51 };
52
53 struct llog_thread_info {
54 struct lu_attr lgi_attr;
55 struct lu_fid lgi_fid;
56 struct dt_object_format lgi_dof;
57 struct lu_buf lgi_buf;
58 loff_t lgi_off;
59 struct llog_rec_hdr lgi_lrh;
60 struct llog_rec_tail lgi_tail;
61 };
62
63 extern struct lu_context_key llog_thread_key;
64
llog_info(const struct lu_env * env)65 static inline struct llog_thread_info *llog_info(const struct lu_env *env)
66 {
67 struct llog_thread_info *lgi;
68
69 lgi = lu_context_key_get(&env->le_ctx, &llog_thread_key);
70 LASSERT(lgi);
71 return lgi;
72 }
73
74 static inline void
lustre_build_llog_lvfs_oid(struct llog_logid * logid,__u64 ino,__u32 gen)75 lustre_build_llog_lvfs_oid(struct llog_logid *logid, __u64 ino, __u32 gen)
76 {
77 ostid_set_seq_llog(&logid->lgl_oi);
78 ostid_set_id(&logid->lgl_oi, ino);
79 logid->lgl_ogen = gen;
80 }
81
82 int llog_info_init(void);
83 void llog_info_fini(void);
84
85 void llog_handle_get(struct llog_handle *loghandle);
86 void llog_handle_put(struct llog_handle *loghandle);
87 int llog_cat_id2handle(const struct lu_env *env, struct llog_handle *cathandle,
88 struct llog_handle **res, struct llog_logid *logid);
89 int class_config_dump_handler(const struct lu_env *env,
90 struct llog_handle *handle,
91 struct llog_rec_hdr *rec, void *data);
92 int class_config_parse_rec(struct llog_rec_hdr *rec, char *buf, int size);
93 int llog_process_or_fork(const struct lu_env *env,
94 struct llog_handle *loghandle,
95 llog_cb_t cb, void *data, void *catdata, bool fork);
96 int llog_cat_cleanup(const struct lu_env *env, struct llog_handle *cathandle,
97 struct llog_handle *loghandle, int index);
98 #endif
99