1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * Copyright (c) 2001-2003 Cluster File Systems, Inc.
7 * Author: Peter Braam <braam@clusterfs.com>
8 * Author: Andreas Dilger <adilger@clusterfs.com>
9 * Author: Phil Schwan <phil@clusterfs.com>
11 * This file is part of Lustre, http://www.lustre.org.
13 * Lustre is free software; you can redistribute it and/or
14 * modify it under the terms of version 2 of the GNU General Public
15 * License as published by the Free Software Foundation.
17 * Lustre is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with Lustre; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #define DEBUG_SUBSYSTEM S_MDS
29 #include <linux/config.h>
30 #include <linux/module.h>
31 #include <linux/version.h>
33 #include <portals/list.h>
34 #include <linux/obd_class.h>
35 #include <linux/lustre_fsfilt.h>
36 #include <linux/lustre_commit_confd.h>
38 #include "mds_internal.h"
40 static int mds_llog_origin_add(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
41 void *buf, struct llog_cookie *logcookies,
42 int numcookies, void *data,
43 struct rw_semaphore **lock, int *lock_count)
45 struct obd_device *obd = ctxt->loc_obd;
46 struct obd_device *lov_obd = obd->u.mds.mds_osc_obd;
47 struct llog_ctxt *lctxt;
51 lctxt = llog_get_context(&lov_obd->obd_llogs, ctxt->loc_idx);
52 rc = llog_add(lctxt, rec, buf, logcookies, numcookies, data,
57 static int mds_llog_origin_connect(struct llog_ctxt *ctxt, int count,
58 struct llog_logid *logid,
59 struct llog_gen *gen, struct obd_uuid *uuid)
61 struct obd_device *obd = ctxt->loc_obd;
62 struct obd_device *lov_obd = obd->u.mds.mds_osc_obd;
63 struct llog_ctxt *lctxt;
67 lctxt = llog_get_context(&lov_obd->obd_llogs, ctxt->loc_idx);
68 rc = llog_connect(lctxt, count, logid, gen, uuid);
72 static int mds_llog_repl_cancel(struct llog_ctxt *ctxt, int count,
73 struct llog_cookie *cookies, int flags,
76 struct obd_device *obd = ctxt->loc_obd;
77 struct obd_device *lov_obd = obd->u.mds.mds_osc_obd;
78 struct llog_ctxt *lctxt;
82 lctxt = llog_get_context(&lov_obd->obd_llogs, ctxt->loc_idx);
83 rc = llog_cancel(lctxt, count, cookies, flags, data);
87 int mds_log_op_unlink(struct obd_device *obd, struct inode *inode,
88 struct lov_mds_md *lmm, int lmm_size,
89 struct llog_cookie *logcookies, int cookies_size,
90 struct llog_create_locks **res)
92 struct mds_obd *mds = &obd->u.mds;
93 struct lov_stripe_md *lsm = NULL;
94 struct llog_ctxt *ctxt;
95 struct llog_create_locks *lcl;
96 int rc, size, offset = offsetof(struct llog_create_locks, lcl_locks);
100 if (IS_ERR(mds->mds_osc_obd))
101 RETURN(PTR_ERR(mds->mds_osc_obd));
103 rc = obd_unpackmd(mds->mds_osc_exp, &lsm,
110 sizeof(struct rw_semaphore *) * lsm->lsm_stripe_count;
111 OBD_ALLOC(lcl, size);
115 lcl->lcl_count = lsm->lsm_stripe_count;
119 ctxt = llog_get_context(&obd->obd_llogs, LLOG_UNLINK_ORIG_CTXT);
120 rc = llog_add(ctxt, NULL, lsm, logcookies,
121 cookies_size / sizeof(struct llog_cookie), NULL,
122 res ? &lcl->lcl_locks[0] : NULL, &lock_count);
124 obd_free_memmd(mds->mds_osc_exp, &lsm);
126 if (res && (rc <= 0 || lock_count == 0)) {
134 static struct llog_operations mds_unlink_orig_logops = {
135 lop_add: mds_llog_origin_add,
136 lop_connect: mds_llog_origin_connect,
139 static struct llog_operations mds_size_repl_logops = {
140 lop_cancel: mds_llog_repl_cancel,
143 int mds_llog_init(struct obd_device *obd, struct obd_llogs *llogs,
144 struct obd_device *tgt, int count, struct llog_catid *logid)
146 struct obd_device *lov_obd = obd->u.mds.mds_osc_obd;
150 rc = obd_llog_setup(obd, llogs, LLOG_UNLINK_ORIG_CTXT, tgt, 0, NULL,
151 &mds_unlink_orig_logops);
155 rc = obd_llog_setup(obd, llogs, LLOG_SIZE_REPL_CTXT, tgt, 0, NULL,
156 &mds_size_repl_logops);
160 rc = obd_llog_init(lov_obd, &lov_obd->obd_llogs, tgt, count, logid);
162 CERROR("error lov_llog_init\n");
167 int mds_llog_finish(struct obd_device *obd, struct obd_llogs *llogs, int count)
169 struct obd_device *lov_obd = obd->u.mds.mds_osc_obd;
173 rc = obd_llog_cleanup(llog_get_context(llogs, LLOG_UNLINK_ORIG_CTXT));
177 rc = obd_llog_cleanup(llog_get_context(llogs, LLOG_SIZE_REPL_CTXT));
181 rc = obd_llog_finish(lov_obd, &lov_obd->obd_llogs, count);
183 CERROR("error lov_llog_finish\n");