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) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/obdfilter/filter_log.c
38 * Author: Peter Braam <braam@clusterfs.com>
39 * Author: Andreas Dilger <adilger@clusterfs.com>
40 * Author: Phil Schwan <phil@clusterfs.com>
43 #define DEBUG_SUBSYSTEM S_FILTER
45 #ifndef AUTOCONF_INCLUDED
46 #include <linux/config.h>
48 #include <linux/module.h>
49 #include <linux/version.h>
51 #include <libcfs/list.h>
52 #include <obd_class.h>
53 #include <lustre_log.h>
54 #include <lustre_fsfilt.h>
55 #include "filter_internal.h"
57 int filter_log_sz_change(struct llog_handle *cathandle,
58 struct ll_fid *mds_fid,
60 struct llog_cookie *logcookie,
63 struct llog_size_change_rec *lsc;
65 struct ost_filterdata *ofd;
68 LOCK_INODE_MUTEX(inode);
69 ofd = INODE_PRIVATE_DATA(inode);
71 if (ofd && ofd->ofd_epoch >= ioepoch) {
72 if (ofd->ofd_epoch > ioepoch)
73 CERROR("client sent old epoch %d for obj ino %ld\n",
74 ioepoch, inode->i_ino);
75 UNLOCK_INODE_MUTEX(inode);
79 if (ofd && ofd->ofd_epoch < ioepoch) {
80 ofd->ofd_epoch = ioepoch;
82 OBD_ALLOC(ofd, sizeof(*ofd));
84 GOTO(out, rc = -ENOMEM);
86 INODE_PRIVATE_DATA(inode) = ofd;
87 ofd->ofd_epoch = ioepoch;
89 /* the decision to write a record is now made, unlock */
90 UNLOCK_INODE_MUTEX(inode);
92 OBD_ALLOC(lsc, sizeof(*lsc));
95 lsc->lsc_hdr.lrh_len = lsc->lsc_tail.lrt_len = sizeof(*lsc);
96 lsc->lsc_hdr.lrh_type = OST_SZ_REC;
97 lsc->lsc_fid = *mds_fid;
98 lsc->lsc_ioepoch = ioepoch;
100 rc = llog_cat_add_rec(cathandle, &lsc->lsc_hdr, logcookie, NULL);
101 OBD_FREE(lsc, sizeof(*lsc));
104 LASSERT(rc == sizeof(*logcookie));
112 /* When this (destroy) operation is committed, return the cancel cookie */
113 void filter_cancel_cookies_cb(struct obd_device *obd, __u64 transno,
114 void *cb_data, int error)
116 struct llog_cookie *cookie = cb_data;
117 struct obd_llog_group *olg;
118 struct llog_ctxt *ctxt;
121 /* we have to find context for right group */
122 if (error != 0 || obd->obd_stopping) {
123 CDEBUG(D_INODE, "not cancel logcookie err %d stopping %d \n",
124 error, obd->obd_stopping);
128 olg = filter_find_olg(obd, cookie->lgc_lgl.lgl_oseq);
130 CDEBUG(D_HA, "unknown group "LPU64"!\n", cookie->lgc_lgl.lgl_oseq);
134 ctxt = llog_group_get_ctxt(olg, cookie->lgc_subsys + 1);
136 CERROR("no valid context for group "LPU64"\n",
137 cookie->lgc_lgl.lgl_oseq);
141 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT, 30);
143 rc = llog_cancel(ctxt, NULL, 1, cookie, 0);
145 CERROR("error cancelling log cookies: rc = %d\n", rc);
148 OBD_FREE(cookie, sizeof(*cookie));
151 /* Callback for processing the unlink log record received from MDS by
152 * llog_client_api. */
153 static int filter_recov_log_unlink_cb(struct llog_ctxt *ctxt,
154 struct llog_rec_hdr *rec,
155 struct llog_cookie *cookie)
157 struct obd_export *exp = ctxt->loc_obd->obd_self_export;
158 struct llog_unlink_rec *lur;
165 lur = (struct llog_unlink_rec *)rec;
169 oa->o_valid |= OBD_MD_FLCOOKIE;
170 oa->o_id = lur->lur_oid;
171 oa->o_seq = lur->lur_oseq;
172 oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
173 oa->o_lcookie = *cookie;
175 /* objid gap may require to destroy several objects in row */
176 count = lur->lur_count + 1;
178 /* This check is only valid before FID-on-OST and it should
179 * be removed after FID-on-OST is implemented */
180 if (oa->o_seq > FID_SEQ_OST_MAX) {
181 CERROR("%s: invalid group number "LPU64" > MAX_CMD_GROUP %d\n",
182 exp->exp_obd->obd_name, oa->o_seq, FID_SEQ_OST_MAX);
187 rc = filter_destroy(exp, oa, NULL, NULL, NULL, NULL);
189 CDEBUG(D_RPCTRACE, "object "LPU64" is destroyed\n",
191 else if (rc != -ENOENT)
192 CEMERG("error destroying object "LPU64": %d\n",
204 /* Callback for processing the setattr log record received from MDS by
205 * llog_client_api. */
206 static int filter_recov_log_setattr_cb(struct llog_ctxt *ctxt,
207 struct llog_rec_hdr *rec,
208 struct llog_cookie *cookie)
210 struct obd_device *obd = ctxt->loc_obd;
211 struct obd_export *exp = obd->obd_self_export;
212 struct obd_info oinfo = { { { 0 } } };
217 OBDO_ALLOC(oinfo.oi_oa);
218 if (oinfo.oi_oa == NULL)
221 if (rec->lrh_type == MDS_SETATTR_REC) {
222 struct llog_setattr_rec *lsr = (struct llog_setattr_rec *)rec;
224 oinfo.oi_oa->o_id = lsr->lsr_oid;
225 oinfo.oi_oa->o_seq = lsr->lsr_oseq;
226 oinfo.oi_oa->o_uid = lsr->lsr_uid;
227 oinfo.oi_oa->o_gid = lsr->lsr_gid;
229 struct llog_setattr64_rec *lsr = (struct llog_setattr64_rec *)rec;
231 oinfo.oi_oa->o_id = lsr->lsr_oid;
232 oinfo.oi_oa->o_seq = lsr->lsr_oseq;
233 oinfo.oi_oa->o_uid = lsr->lsr_uid;
234 oinfo.oi_oa->o_gid = lsr->lsr_gid;
237 oinfo.oi_oa->o_valid |= (OBD_MD_FLID | OBD_MD_FLUID | OBD_MD_FLGID |
239 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
240 oinfo.oi_oa->o_lcookie = *cookie;
241 oid = oinfo.oi_oa->o_id;
243 rc = filter_setattr(exp, &oinfo, NULL);
244 OBDO_FREE(oinfo.oi_oa);
247 CDEBUG(D_RPCTRACE, "object already removed, send cookie\n");
248 llog_cancel(ctxt, NULL, 1, cookie, 0);
253 CDEBUG(D_RPCTRACE, "object "LPU64" is chown/chgrp\n", oid);
258 int filter_recov_log_mds_ost_cb(struct llog_handle *llh,
259 struct llog_rec_hdr *rec, void *data)
261 struct llog_ctxt *ctxt = llh->lgh_ctxt;
262 struct llog_cookie cookie;
266 if (ctxt->loc_obd->obd_stopping)
267 RETURN(LLOG_PROC_BREAK);
270 cfs_spin_lock(&ctxt->loc_obd->u.filter.fo_flags_lock);
271 ctxt->loc_obd->u.filter.fo_mds_ost_sync = 0;
272 cfs_spin_unlock(&ctxt->loc_obd->u.filter.fo_flags_lock);
276 if (!(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)) {
277 CERROR("log is not plain\n");
281 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT, 30);
282 cookie.lgc_lgl = llh->lgh_id;
283 cookie.lgc_subsys = LLOG_MDS_OST_ORIG_CTXT;
284 cookie.lgc_index = rec->lrh_index;
286 switch (rec->lrh_type) {
288 rc = filter_recov_log_unlink_cb(ctxt, rec, &cookie);
290 case MDS_SETATTR_REC:
291 case MDS_SETATTR64_REC:
292 rc = filter_recov_log_setattr_cb(ctxt, rec, &cookie);
295 struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
296 if (llog_gen_lt(lgr->lgr_gen, ctxt->loc_gen))
299 rc = LLOG_PROC_BREAK;
300 CDEBUG(D_HA, "fetch generation log, send cookie\n");
301 llog_cancel(ctxt, NULL, 1, &cookie, 0);
306 CERROR("log record type %08x unknown\n", rec->lrh_type);