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).
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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.
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.
38 * lustre/obdfilter/filter_log.c
40 * Author: Peter Braam <braam@clusterfs.com>
41 * Author: Andreas Dilger <adilger@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
45 #define DEBUG_SUBSYSTEM S_FILTER
47 #ifndef AUTOCONF_INCLUDED
48 #include <linux/config.h>
50 #include <linux/module.h>
51 #include <linux/version.h>
53 #include <libcfs/list.h>
54 #include <obd_class.h>
55 #include <lustre_log.h>
56 #include <lustre_fsfilt.h>
57 #include "filter_internal.h"
59 int filter_log_sz_change(struct llog_handle *cathandle,
60 struct ll_fid *mds_fid,
62 struct llog_cookie *logcookie,
65 struct llog_size_change_rec *lsc;
67 struct ost_filterdata *ofd;
70 LOCK_INODE_MUTEX(inode);
71 ofd = INODE_PRIVATE_DATA(inode);
73 if (ofd && ofd->ofd_epoch >= ioepoch) {
74 if (ofd->ofd_epoch > ioepoch)
75 CERROR("client sent old epoch %d for obj ino %ld\n",
76 ioepoch, inode->i_ino);
77 UNLOCK_INODE_MUTEX(inode);
81 if (ofd && ofd->ofd_epoch < ioepoch) {
82 ofd->ofd_epoch = ioepoch;
84 OBD_ALLOC(ofd, sizeof(*ofd));
86 GOTO(out, rc = -ENOMEM);
88 INODE_PRIVATE_DATA(inode) = ofd;
89 ofd->ofd_epoch = ioepoch;
91 /* the decision to write a record is now made, unlock */
92 UNLOCK_INODE_MUTEX(inode);
94 OBD_ALLOC(lsc, sizeof(*lsc));
97 lsc->lsc_hdr.lrh_len = lsc->lsc_tail.lrt_len = sizeof(*lsc);
98 lsc->lsc_hdr.lrh_type = OST_SZ_REC;
99 lsc->lsc_fid = *mds_fid;
100 lsc->lsc_ioepoch = ioepoch;
102 rc = llog_cat_add_rec(cathandle, &lsc->lsc_hdr, logcookie, NULL);
103 OBD_FREE(lsc, sizeof(*lsc));
106 LASSERT(rc == sizeof(*logcookie));
114 /* When this (destroy) operation is committed, return the cancel cookie */
115 void filter_cancel_cookies_cb(struct obd_device *obd, __u64 transno,
116 void *cb_data, int error)
118 struct llog_cookie *cookie = cb_data;
119 struct obd_llog_group *olg;
120 struct llog_ctxt *ctxt;
123 /* we have to find context for right group */
124 if (error != 0 || obd->obd_stopping) {
125 CDEBUG(D_INODE, "not cancel logcookie err %d stopping %d \n",
126 error, obd->obd_stopping);
130 olg = filter_find_olg(obd, cookie->lgc_lgl.lgl_oseq);
132 CDEBUG(D_HA, "unknown group "LPU64"!\n", cookie->lgc_lgl.lgl_oseq);
136 ctxt = llog_group_get_ctxt(olg, cookie->lgc_subsys + 1);
138 CERROR("no valid context for group "LPU64"\n",
139 cookie->lgc_lgl.lgl_oseq);
143 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT, 30);
145 rc = llog_cancel(ctxt, NULL, 1, cookie, 0);
147 CERROR("error cancelling log cookies: rc = %d\n", rc);
150 OBD_FREE(cookie, sizeof(*cookie));
153 /* Callback for processing the unlink log record received from MDS by
154 * llog_client_api. */
155 static int filter_recov_log_unlink_cb(struct llog_ctxt *ctxt,
156 struct llog_rec_hdr *rec,
157 struct llog_cookie *cookie)
159 struct obd_export *exp = ctxt->loc_obd->obd_self_export;
160 struct llog_unlink_rec *lur;
167 lur = (struct llog_unlink_rec *)rec;
171 oa->o_valid |= OBD_MD_FLCOOKIE;
172 oa->o_id = lur->lur_oid;
173 oa->o_seq = lur->lur_oseq;
174 oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
175 oa->o_lcookie = *cookie;
177 /* objid gap may require to destroy several objects in row */
178 count = lur->lur_count + 1;
180 /* This check is only valid before FID-on-OST and it should
181 * be removed after FID-on-OST is implemented */
182 if (oa->o_seq > FID_SEQ_OST_MAX) {
183 CERROR("%s: invalid group number "LPU64" > MAX_CMD_GROUP %u\n",
184 exp->exp_obd->obd_name, oa->o_seq, FID_SEQ_OST_MAX);
189 rc = filter_destroy(exp, oa, NULL, NULL, NULL, NULL);
191 CDEBUG(D_RPCTRACE, "object "LPU64" is destroyed\n",
193 else if (rc != -ENOENT)
194 CEMERG("error destroying object "LPU64": %d\n",
206 /* Callback for processing the setattr log record received from MDS by
207 * llog_client_api. */
208 static int filter_recov_log_setattr_cb(struct llog_ctxt *ctxt,
209 struct llog_rec_hdr *rec,
210 struct llog_cookie *cookie)
212 struct obd_device *obd = ctxt->loc_obd;
213 struct obd_export *exp = obd->obd_self_export;
214 struct obd_info oinfo = { { { 0 } } };
219 OBDO_ALLOC(oinfo.oi_oa);
220 if (oinfo.oi_oa == NULL)
223 if (rec->lrh_type == MDS_SETATTR_REC) {
224 struct llog_setattr_rec *lsr = (struct llog_setattr_rec *)rec;
226 oinfo.oi_oa->o_id = lsr->lsr_oid;
227 oinfo.oi_oa->o_seq = lsr->lsr_oseq;
228 oinfo.oi_oa->o_uid = lsr->lsr_uid;
229 oinfo.oi_oa->o_gid = lsr->lsr_gid;
231 struct llog_setattr64_rec *lsr = (struct llog_setattr64_rec *)rec;
233 oinfo.oi_oa->o_id = lsr->lsr_oid;
234 oinfo.oi_oa->o_seq = lsr->lsr_oseq;
235 oinfo.oi_oa->o_uid = lsr->lsr_uid;
236 oinfo.oi_oa->o_gid = lsr->lsr_gid;
239 oinfo.oi_oa->o_valid |= (OBD_MD_FLID | OBD_MD_FLUID | OBD_MD_FLGID |
241 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
242 oinfo.oi_oa->o_lcookie = *cookie;
243 oid = oinfo.oi_oa->o_id;
245 rc = filter_setattr(exp, &oinfo, NULL);
246 OBDO_FREE(oinfo.oi_oa);
249 CDEBUG(D_RPCTRACE, "object already removed, send cookie\n");
250 llog_cancel(ctxt, NULL, 1, cookie, 0);
255 CDEBUG(D_RPCTRACE, "object "LPU64" is chown/chgrp\n", oid);
260 int filter_recov_log_mds_ost_cb(struct llog_handle *llh,
261 struct llog_rec_hdr *rec, void *data)
263 struct llog_ctxt *ctxt = llh->lgh_ctxt;
264 struct llog_cookie cookie;
268 if (ctxt->loc_obd->obd_stopping)
269 RETURN(LLOG_PROC_BREAK);
272 cfs_spin_lock(&ctxt->loc_obd->u.filter.fo_flags_lock);
273 ctxt->loc_obd->u.filter.fo_mds_ost_sync = 0;
274 cfs_spin_unlock(&ctxt->loc_obd->u.filter.fo_flags_lock);
278 if (!(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)) {
279 CERROR("log is not plain\n");
283 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT, 30);
284 cookie.lgc_lgl = llh->lgh_id;
285 cookie.lgc_subsys = LLOG_MDS_OST_ORIG_CTXT;
286 cookie.lgc_index = rec->lrh_index;
288 switch (rec->lrh_type) {
290 rc = filter_recov_log_unlink_cb(ctxt, rec, &cookie);
292 case MDS_SETATTR_REC:
293 case MDS_SETATTR64_REC:
294 rc = filter_recov_log_setattr_cb(ctxt, rec, &cookie);
297 struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
298 if (llog_gen_lt(lgr->lgr_gen, ctxt->loc_gen))
301 rc = LLOG_PROC_BREAK;
302 CDEBUG(D_HA, "fetch generation log, send cookie\n");
303 llog_cancel(ctxt, NULL, 1, &cookie, 0);
308 CERROR("log record type %08x unknown\n", rec->lrh_type);