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 ptlrpc_client *cl;
53 struct ptlrpc_connection *connection;
54 struct lustre_handle *rconn;
55 struct mds_rec_setattr *rec;
56 struct ptlrpc_request *req;
57 int rc, size = sizeof(*rec);
60 mdc_con2cl(conn, &cl, &connection, &rconn);
61 req = ptlrpc_prep_req2(conn,
62 MDS_REINT, 1, &size, NULL);
66 mds_setattr_pack(req, 0, inode, iattr, NULL, 0);
68 size = sizeof(struct mds_body);
69 req->rq_replen = lustre_msg_size(1, &size);
71 rc = mdc_reint(req, LUSTRE_CONN_FULL);
73 if (rc == -ERESTARTSYS )
79 int mdc_create(struct lustre_handle *conn,
80 struct inode *dir, const char *name, int namelen,
81 const char *tgt, int tgtlen, int mode, __u32 uid,
82 __u32 gid, __u64 time, __u64 rdev, struct lov_stripe_md *smd,
83 struct ptlrpc_request **request)
85 struct mds_rec_create *rec;
86 struct ptlrpc_request *req;
87 int rc, size[3] = {sizeof(struct mds_rec_create), namelen + 1, 0};
88 char *tmp, *bufs[3] = {NULL, NULL, NULL};
89 int level, bufcount = 2;
94 CERROR("File create, but no md (%ld, %*s)\n",
95 dir->i_ino, namelen, name);
98 size[2] = smd->lmd_easize;
99 bufs[2] = (char *)smd;
101 } else if (S_ISLNK(mode)) {
102 size[2] = tgtlen + 1;
106 req = ptlrpc_prep_req2(conn, MDS_REINT, bufcount, size, bufs);
110 /* mds_create_pack fills bufs[1] with name */
111 rec = lustre_msg_buf(req->rq_reqmsg, 0);
112 mds_create_pack(req, 0, dir, mode, rdev, uid, gid, time,
113 name, namelen, NULL, 0);
116 tmp = lustre_msg_buf(req->rq_reqmsg, 2);
117 memcpy(tmp, smd, smd->lmd_easize);
118 } else if (S_ISLNK(mode)) {
119 tmp = lustre_msg_buf(req->rq_reqmsg, 2);
120 LOGL0(tgt, tgtlen, tmp);
123 size[0] = sizeof(struct mds_body);
124 req->rq_replen = lustre_msg_size(1, size);
126 level = LUSTRE_CONN_FULL;
128 rc = mdc_reint(req, level);
129 if (rc == -ERESTARTSYS) {
130 struct mds_update_record_hdr *hdr =
131 lustre_msg_buf(req->rq_reqmsg, 0);
132 level = LUSTRE_CONN_RECOVD;
133 CERROR("Lost reply: re-create rep.\n");
135 hdr->ur_opcode = NTOH__u32(REINT_RECREATE);
143 int mdc_unlink(struct lustre_handle *conn,
144 struct inode *dir, struct inode *child, const char *name,
145 int namelen, struct ptlrpc_request **request)
147 struct ptlrpc_request *req;
148 int rc, size[2] = {sizeof(struct mds_rec_unlink), namelen + 1};
151 req = ptlrpc_prep_req2(conn, MDS_REINT, 2, size, NULL);
155 mds_unlink_pack(req, 0, dir, child, name, namelen);
157 size[0] = sizeof(struct mds_body);
158 req->rq_replen = lustre_msg_size(1, size);
160 rc = mdc_reint(req, LUSTRE_CONN_FULL);
162 if (rc == -ERESTARTSYS )
168 int mdc_link(struct lustre_handle *conn,
169 struct dentry *src, struct inode *dir, const char *name,
170 int namelen, struct ptlrpc_request **request)
172 struct ptlrpc_request *req;
173 int rc, size[2] = {sizeof(struct mds_rec_link), namelen + 1};
176 req = ptlrpc_prep_req2(conn, MDS_REINT, 2, size, NULL);
180 mds_link_pack(req, 0, src->d_inode, dir, name, namelen);
182 size[0] = sizeof(struct mds_body);
183 req->rq_replen = lustre_msg_size(1, size);
185 rc = mdc_reint(req, LUSTRE_CONN_FULL);
187 if (rc == -ERESTARTSYS )
193 int mdc_rename(struct lustre_handle *conn,
194 struct inode *src, struct inode *tgt, const char *old,
195 int oldlen, const char *new, int newlen,
196 struct ptlrpc_request **request)
198 struct ptlrpc_request *req;
199 int rc, size[3] = {sizeof(struct mds_rec_rename), oldlen + 1,
203 req = ptlrpc_prep_req2(conn, 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 )