1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.sf.net/projects/lustre/
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/config.h>
26 #include <linux/module.h>
27 #include <linux/kernel.h>
29 #define DEBUG_SUBSYSTEM S_MDC
31 #include <linux/obd_class.h>
32 #include <linux/lustre_mds.h>
34 static int mdc_reint(struct ptlrpc_request *request, int level)
37 request->rq_level = level;
39 rc = ptlrpc_queue_wait(request);
40 rc = ptlrpc_check_status(request, rc);
43 CERROR("error in handling %d\n", rc);
48 int mdc_setattr(struct lustre_handle *conn,
49 struct inode *inode, struct iattr *iattr,
50 struct ptlrpc_request **request)
52 struct mdc_obd *mdc = mdc_conn2mdc(conn);
53 struct mds_rec_setattr *rec;
54 struct ptlrpc_request *req;
55 int rc, size = sizeof(*rec);
58 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
59 MDS_REINT, 1, &size, NULL);
63 mds_setattr_pack(req, 0, inode, iattr, NULL, 0);
65 size = sizeof(struct mds_body);
66 req->rq_replen = lustre_msg_size(1, &size);
68 rc = mdc_reint(req, LUSTRE_CONN_FULL);
70 if (rc == -ERESTARTSYS )
76 int mdc_create(struct lustre_handle *conn,
77 struct inode *dir, const char *name, int namelen,
78 const char *tgt, int tgtlen, int mode, __u32 uid,
79 __u32 gid, __u64 time, __u64 rdev, struct obdo *obdo,
80 struct ptlrpc_request **request)
82 struct mds_rec_create *rec;
83 struct mdc_obd *mdc = mdc_conn2mdc(conn);
84 struct ptlrpc_request *req;
85 int rc, size[3] = {sizeof(struct mds_rec_create), namelen + 1, 0};
86 char *tmp, *bufs[3] = {NULL, NULL, NULL};
87 int level, bufcount = 2;
91 size[2] = sizeof(*obdo);
92 bufs[2] = (char *)obdo;
94 } else if (S_ISLNK(mode)) {
99 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
101 bufcount, size, bufs);
105 rec = lustre_msg_buf(req->rq_reqmsg, 0);
106 mds_create_pack(req, 0, dir, mode, rdev, uid, gid, time,
107 name, namelen, NULL, 0);
110 tmp = lustre_msg_buf(req->rq_reqmsg, 2);
111 memcpy(tmp, obdo, sizeof(*obdo));
112 } else if (S_ISLNK(mode)) {
113 tmp = lustre_msg_buf(req->rq_reqmsg, 2);
114 LOGL0(tgt, tgtlen, tmp);
117 size[0] = sizeof(struct mds_body);
118 req->rq_replen = lustre_msg_size(1, size);
120 level = LUSTRE_CONN_FULL;
122 rc = mdc_reint(req, level);
123 if (rc == -ERESTARTSYS) {
124 struct mds_update_record_hdr *hdr =
125 lustre_msg_buf(req->rq_reqmsg, 0);
126 level = LUSTRE_CONN_RECOVD;
127 CERROR("Lost reply: re-create rep.\n");
129 hdr->ur_opcode = NTOH__u32(REINT_RECREATE);
137 int mdc_unlink(struct lustre_handle *conn,
138 struct inode *dir, struct inode *child, const char *name,
139 int namelen, struct ptlrpc_request **request)
141 struct mdc_obd *mdc = mdc_conn2mdc(conn);
142 struct ptlrpc_request *req;
143 int rc, size[2] = {sizeof(struct mds_rec_unlink), namelen + 1};
146 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
147 MDS_REINT, 2, size, NULL);
151 mds_unlink_pack(req, 0, dir, child, name, namelen);
153 size[0] = sizeof(struct mds_body);
154 req->rq_replen = lustre_msg_size(1, size);
156 rc = mdc_reint(req, LUSTRE_CONN_FULL);
158 if (rc == -ERESTARTSYS )
164 int mdc_link(struct lustre_handle *conn,
165 struct dentry *src, struct inode *dir, const char *name,
166 int namelen, struct ptlrpc_request **request)
168 struct mdc_obd *mdc = mdc_conn2mdc(conn);
169 struct ptlrpc_request *req;
170 int rc, size[2] = {sizeof(struct mds_rec_link), namelen + 1};
173 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
174 MDS_REINT, 2, size, NULL);
178 mds_link_pack(req, 0, src->d_inode, dir, name, namelen);
180 size[0] = sizeof(struct mds_body);
181 req->rq_replen = lustre_msg_size(1, size);
183 rc = mdc_reint(req, LUSTRE_CONN_FULL);
185 if (rc == -ERESTARTSYS )
191 int mdc_rename(struct lustre_handle *conn,
192 struct inode *src, struct inode *tgt, const char *old,
193 int oldlen, const char *new, int newlen,
194 struct ptlrpc_request **request)
196 struct mdc_obd *mdc = mdc_conn2mdc(conn);
197 struct ptlrpc_request *req;
198 int rc, size[3] = {sizeof(struct mds_rec_rename), oldlen + 1,
202 req = ptlrpc_prep_req2(mdc->mdc_client, mdc->mdc_conn, &mdc->mdc_connh,
203 MDS_REINT, 3, size, NULL);
207 mds_rename_pack(req, 0, src, tgt, old, oldlen, new, newlen);
209 size[0] = sizeof(struct mds_body);
210 req->rq_replen = lustre_msg_size(1, size);
212 rc = mdc_reint(req, LUSTRE_CONN_FULL);
214 if (rc == -ERESTARTSYS )