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>
33 #include <linux/obd_lov.h>
35 static int mdc_reint(struct ptlrpc_request *request, int level)
38 request->rq_level = level;
40 rc = ptlrpc_queue_wait(request);
41 rc = ptlrpc_check_status(request, rc);
44 CERROR("error in handling %d\n", rc);
49 int mdc_setattr(struct lustre_handle *conn,
50 struct inode *inode, struct iattr *iattr,
51 struct ptlrpc_request **request)
53 struct ptlrpc_request *req;
54 struct mds_rec_setattr *rec;
55 int rc, size = sizeof(*rec);
58 req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 1, &size,
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 lov_stripe_md *lsm,
80 struct ptlrpc_request **request)
82 struct mds_rec_create *rec;
83 struct ptlrpc_request *req;
84 int rc, size[3] = {sizeof(struct mds_rec_create), namelen + 1, 0};
86 int level, bufcount = 2;
91 CERROR("File create, but no stripe md (%ld, %*s)\n",
92 dir->i_ino, namelen, name);
95 // size[2] = mdc->cl_max_mds_easize; soon...
96 size[2] = lsm->lsm_mds_easize;
98 } else if (S_ISLNK(mode)) {
103 req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, bufcount, size,
108 /* mds_create_pack fills msg->bufs[1] with name */
109 rec = lustre_msg_buf(req->rq_reqmsg, 0);
110 mds_create_pack(req, 0, dir, mode, rdev, uid, gid, time,
111 name, namelen, NULL, 0);
114 lov_packmd(lustre_msg_buf(req->rq_reqmsg, 2), lsm);
115 } else if (S_ISLNK(mode)) {
116 tmp = lustre_msg_buf(req->rq_reqmsg, 2);
117 LOGL0(tgt, tgtlen, tmp);
120 size[0] = sizeof(struct mds_body);
121 req->rq_replen = lustre_msg_size(1, size);
123 level = LUSTRE_CONN_FULL;
125 rc = mdc_reint(req, level);
126 if (rc == -ERESTARTSYS) {
127 __u32 *opcode = lustre_msg_buf(req->rq_reqmsg, 0);
128 level = LUSTRE_CONN_RECOVD;
129 CERROR("Lost reply: re-create rep.\n");
131 *opcode = NTOH__u32(REINT_RECREATE);
139 int mdc_unlink(struct lustre_handle *conn, struct inode *dir,
140 struct inode *child, __u32 mode, const char *name, int namelen,
141 struct ptlrpc_request **request)
143 struct ptlrpc_request *req;
144 int rc, size[2] = {sizeof(struct mds_rec_unlink), namelen + 1};
147 req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 2, size, NULL);
151 mds_unlink_pack(req, 0, dir, child, mode, 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 ptlrpc_request *req;
169 int rc, size[2] = {sizeof(struct mds_rec_link), namelen + 1};
172 req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 2, size, NULL);
176 mds_link_pack(req, 0, src->d_inode, dir, name, namelen);
178 size[0] = sizeof(struct mds_body);
179 req->rq_replen = lustre_msg_size(1, size);
181 rc = mdc_reint(req, LUSTRE_CONN_FULL);
183 if (rc == -ERESTARTSYS )
189 int mdc_rename(struct lustre_handle *conn,
190 struct inode *src, struct inode *tgt, const char *old,
191 int oldlen, const char *new, int newlen,
192 struct ptlrpc_request **request)
194 struct ptlrpc_request *req;
195 int rc, size[3] = {sizeof(struct mds_rec_rename), oldlen + 1,
199 req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 3, size, NULL);
203 mds_rename_pack(req, 0, src, tgt, old, oldlen, new, newlen);
205 size[0] = sizeof(struct mds_body);
206 req->rq_replen = lustre_msg_size(1, size);
208 rc = mdc_reint(req, LUSTRE_CONN_FULL);
210 if (rc == -ERESTARTSYS )