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 [sun.com URL with a
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 2008 Sun Microsystems, Inc. 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_fsfilt.h>
54 #include <lustre_commit_confd.h>
56 #include "filter_internal.h"
58 int filter_log_sz_change(struct llog_handle *cathandle,
59 struct ll_fid *mds_fid,
61 struct llog_cookie *logcookie,
64 struct llog_size_change_rec *lsc;
66 struct ost_filterdata *ofd;
69 LOCK_INODE_MUTEX(inode);
70 ofd = inode->i_filterdata;
72 if (ofd && ofd->ofd_epoch >= ioepoch) {
73 if (ofd->ofd_epoch > ioepoch)
74 CERROR("client sent old epoch %d for obj ino %ld\n",
75 ioepoch, inode->i_ino);
76 UNLOCK_INODE_MUTEX(inode);
80 if (ofd && ofd->ofd_epoch < ioepoch) {
81 ofd->ofd_epoch = ioepoch;
83 OBD_ALLOC(ofd, sizeof(*ofd));
85 GOTO(out, rc = -ENOMEM);
87 inode->i_filterdata = ofd;
88 ofd->ofd_epoch = ioepoch;
90 /* the decision to write a record is now made, unlock */
91 UNLOCK_INODE_MUTEX(inode);
93 OBD_ALLOC(lsc, sizeof(*lsc));
96 lsc->lsc_hdr.lrh_len = lsc->lsc_tail.lrt_len = sizeof(*lsc);
97 lsc->lsc_hdr.lrh_type = OST_SZ_REC;
98 lsc->lsc_fid = *mds_fid;
99 lsc->lsc_ioepoch = ioepoch;
101 rc = llog_cat_add_rec(cathandle, &lsc->lsc_hdr, logcookie, NULL);
102 OBD_FREE(lsc, sizeof(*lsc));
105 LASSERT(rc == sizeof(*logcookie));
113 /* When this (destroy) operation is committed, return the cancel cookie */
114 void filter_cancel_cookies_cb(struct obd_device *obd, __u64 transno,
115 void *cb_data, int error)
117 struct llog_cookie *cookie = cb_data;
118 struct obd_llog_group *olg;
119 struct llog_ctxt *ctxt;
122 /* we have to find context for right group */
123 if (error != 0 || obd->obd_stopping) {
124 CDEBUG(D_INODE, "not cancel logcookie err %d stopping %d \n",
125 error, obd->obd_stopping);
129 olg = filter_find_olg(obd, cookie->lgc_lgl.lgl_ogr);
131 CDEBUG(D_HA, "unknown group "LPU64"!\n", cookie->lgc_lgl.lgl_ogr);
135 ctxt = llog_group_get_ctxt(olg, cookie->lgc_subsys + 1);
137 CERROR("no valid context for group "LPU64"\n",
138 cookie->lgc_lgl.lgl_ogr);
142 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT, 30);
144 rc = llog_cancel(ctxt, NULL, 1, cookie, 0);
146 CERROR("error cancelling log cookies: rc = %d\n", rc);
149 OBD_FREE(cookie, sizeof(*cookie));
152 /* Callback for processing the unlink log record received from MDS by
153 * llog_client_api. */
154 static int filter_recov_log_unlink_cb(struct llog_ctxt *ctxt,
155 struct llog_rec_hdr *rec,
156 struct llog_cookie *cookie)
158 struct obd_device *obd = ctxt->loc_obd;
159 struct obd_export *exp = obd->obd_self_export;
160 struct llog_unlink_rec *lur;
166 lur = (struct llog_unlink_rec *)rec;
170 oa->o_valid |= OBD_MD_FLCOOKIE;
171 oa->o_id = lur->lur_oid;
172 oa->o_gr = lur->lur_ogen;
173 oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
174 memcpy(obdo_logcookie(oa), cookie, sizeof(*cookie));
177 rc = filter_destroy(exp, oa, NULL, NULL, NULL);
180 CDEBUG(D_RPCTRACE, "object already removed, send cookie\n");
181 llog_cancel(ctxt, NULL, 1, cookie, 0);
186 CDEBUG(D_RPCTRACE, "object "LPU64" is destroyed\n", oid);
191 /* Callback for processing the setattr log record received from MDS by
192 * llog_client_api. */
193 static int filter_recov_log_setattr_cb(struct llog_ctxt *ctxt,
194 struct llog_rec_hdr *rec,
195 struct llog_cookie *cookie)
197 struct obd_device *obd = ctxt->loc_obd;
198 struct obd_export *exp = obd->obd_self_export;
199 struct llog_setattr_rec *lsr;
200 struct obd_info oinfo = { { { 0 } } };
205 lsr = (struct llog_setattr_rec *)rec;
206 OBDO_ALLOC(oinfo.oi_oa);
207 if (oinfo.oi_oa == NULL)
210 oinfo.oi_oa->o_valid |= (OBD_MD_FLID | OBD_MD_FLUID | OBD_MD_FLGID |
212 oinfo.oi_oa->o_id = lsr->lsr_oid;
213 oinfo.oi_oa->o_gr = lsr->lsr_ogen;
214 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
215 oinfo.oi_oa->o_uid = lsr->lsr_uid;
216 oinfo.oi_oa->o_gid = lsr->lsr_gid;
217 memcpy(obdo_logcookie(oinfo.oi_oa), cookie, sizeof(*cookie));
218 oid = oinfo.oi_oa->o_id;
220 rc = filter_setattr(exp, &oinfo, NULL);
221 OBDO_FREE(oinfo.oi_oa);
224 CDEBUG(D_RPCTRACE, "object already removed, send cookie\n");
225 llog_cancel(ctxt, NULL, 1, cookie, 0);
230 CDEBUG(D_RPCTRACE, "object "LPU64" is chown/chgrp\n", oid);
235 int filter_recov_log_mds_ost_cb(struct llog_handle *llh,
236 struct llog_rec_hdr *rec, void *data)
238 struct llog_ctxt *ctxt = llh->lgh_ctxt;
239 struct llog_cookie cookie;
243 if (ctxt->loc_obd->obd_stopping)
244 RETURN(LLOG_PROC_BREAK);
246 if (!(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)) {
247 CERROR("log is not plain\n");
251 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT, 30);
252 cookie.lgc_lgl = llh->lgh_id;
253 cookie.lgc_subsys = LLOG_MDS_OST_ORIG_CTXT;
254 cookie.lgc_index = rec->lrh_index;
256 switch (rec->lrh_type) {
258 rc = filter_recov_log_unlink_cb(ctxt, rec, &cookie);
260 case MDS_SETATTR_REC:
261 rc = filter_recov_log_setattr_cb(ctxt, rec, &cookie);
264 struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
265 if (llog_gen_lt(lgr->lgr_gen, ctxt->loc_gen))
268 rc = LLOG_PROC_BREAK;
269 CDEBUG(D_HA, "fetch generation log, send cookie\n");
270 llog_cancel(ctxt, NULL, 1, &cookie, 0);
275 CERROR("log record type %08x unknown\n", rec->lrh_type);