4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License version 2 for more details. A copy is
14 * included in the COPYING file that accompanied this code.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Copyright (c) 2013, Intel Corporation.
26 * lustre/include/lustre_lfsck.h
28 * Lustre LFSCK exported functions.
30 * Author: Fan, Yong <fan.yong@intel.com>
33 #ifndef _LUSTRE_LFSCK_H
34 # define _LUSTRE_LFSCK_H
36 #include <lustre/lustre_lfsck_user.h>
37 #include <lustre_dlm.h>
38 #include <lu_object.h>
39 #include <dt_object.h>
55 * -----------------------------------------------------------------
59 * LS_SCANNING_PHASE2 LS_FAILED LS_STOPPED LS_PAUSED LS_CRASHED LS_PARTIAL
63 * | (lfsck:restart) |: |: |: |: |:
65 * -----------------------------------------------------------------
71 /* The lfsck file is new created, for new MDT, upgrading from old disk,
72 * or re-creating the lfsck file manually. */
75 /* The first-step system scanning. */
76 LS_SCANNING_PHASE1 = 1,
78 /* The second-step system scanning. */
79 LS_SCANNING_PHASE2 = 2,
81 /* The LFSCK processing has completed for all objects. */
84 /* The LFSCK exited automatically for failure, will not auto restart. */
87 /* The LFSCK is stopped manually, will not auto restart. */
90 /* LFSCK is paused automatically when umount,
91 * will be restarted automatically when remount. */
94 /* System crashed during the LFSCK,
95 * will be restarted automatically after recovery. */
98 /* Some OST/MDT failed during the LFSCK, or not join the LFSCK. */
101 /* The LFSCK is failed because its controller is failed. */
104 /* The LFSCK is stopped because its controller is stopped. */
107 /* The LFSCK is paused because its controller is paused. */
113 struct lfsck_start_param {
114 struct lfsck_start *lsp_start;
116 unsigned int lsp_index_valid:1;
120 LE_LASTID_REBUILDING = 1,
121 LE_LASTID_REBUILT = 2,
131 enum lfsck_event_flags {
132 LEF_TO_OST = 0x00000001,
133 LEF_FROM_OST = 0x00000002,
136 typedef int (*lfsck_out_notify)(const struct lu_env *env, void *data,
137 enum lfsck_events event);
139 int lfsck_register_namespace(const struct lu_env *env, struct dt_device *key,
140 struct ldlm_namespace *ns);
141 int lfsck_register(const struct lu_env *env, struct dt_device *key,
142 struct dt_device *next, struct obd_device *obd,
143 lfsck_out_notify notify, void *notify_data, bool master);
144 void lfsck_degister(const struct lu_env *env, struct dt_device *key);
146 int lfsck_add_target(const struct lu_env *env, struct dt_device *key,
147 struct dt_device *tgt, struct obd_export *exp,
148 __u32 index, bool for_ost);
149 void lfsck_del_target(const struct lu_env *env, struct dt_device *key,
150 struct dt_device *tgt, __u32 index, bool for_ost);
152 int lfsck_start(const struct lu_env *env, struct dt_device *key,
153 struct lfsck_start_param *lsp);
154 int lfsck_stop(const struct lu_env *env, struct dt_device *key,
155 struct lfsck_stop *stop);
156 int lfsck_in_notify(const struct lu_env *env, struct dt_device *key,
157 struct lfsck_request *lr);
158 int lfsck_query(const struct lu_env *env, struct dt_device *key,
159 struct lfsck_request *lr);
161 int lfsck_get_speed(struct dt_device *key, void *buf, int len);
162 int lfsck_set_speed(struct dt_device *key, int val);
163 int lfsck_get_windows(struct dt_device *key, void *buf, int len);
164 int lfsck_set_windows(struct dt_device *key, int val);
166 int lfsck_dump(struct dt_device *key, void *buf, int len, enum lfsck_type type);
168 static inline void lfsck_pack_rfa(struct lfsck_request *lr,
169 const struct lu_fid *fid)
171 memset(lr, 0, sizeof(*lr));
172 lr->lr_event = LE_FID_ACCESSED;
173 lr->lr_active = LT_LAYOUT;
177 #endif /* _LUSTRE_LFSCK_H */