/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * Copyright (C) 2001-2003 Cluster File Systems, Inc.
*
- * This file is part of Portals, http://www.sf.net/projects/lustre/
+ * This file is part of the Lustre file system, http://www.lustre.org
+ * Lustre is a trademark of Cluster File Systems, Inc.
*
- * Portals is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You may have signed or agreed to another license before downloading
+ * this software. If so, you are bound by the terms and conditions
+ * of that agreement, and the following does not apply to you. See the
+ * LICENSE file included with this distribution for more information.
*
- * Portals is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Portals; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * If you did not agree to a different license, then this copy of Lustre
+ * is open source software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
*
+ * In either case, Lustre is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * license text for more details.
*/
-#define EXPORT_SYMTAB
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
+#define DEBUG_SUBSYSTEM S_MDC
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
+#ifdef __KERNEL__
+#ifdef HAVE_KERNEL_CONFIG_H
+# include <linux/config.h>
+#endif
+# include <linux/module.h>
+# include <linux/kernel.h>
+#else
+# include <liblustre.h>
+#endif
+
+#include <obd_class.h>
+#include "mdc_internal.h"
+
+/* mdc_setattr does its own semaphore handling */
+static int mdc_reint(struct ptlrpc_request *request,
+ struct mdc_rpc_lock *rpc_lock, int level)
+{
+ int rc;
+
+ request->rq_send_state = level;
+
+ mdc_get_rpc_lock(rpc_lock, NULL);
+ rc = ptlrpc_queue_wait(request);
+ mdc_put_rpc_lock(rpc_lock, NULL);
+ if (rc)
+ CDEBUG(D_INFO, "error in handling %d\n", rc);
+ else if (!lustre_swab_repbuf(request, REPLY_REC_OFF,
+ sizeof(struct mdt_body),
+ lustre_swab_mdt_body)) {
+ CERROR ("Can't unpack mdt_body\n");
+ rc = -EPROTO;
+ }
+ return rc;
+}
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
+/* If mdc_setattr is called with an 'iattr', then it is a normal RPC that
+ * should take the normal semaphore and go to the normal portal.
+ *
+ * If it is called with iattr->ia_valid & ATTR_FROM_OPEN, then it is a
+ * magic open-path setattr that should take the setattr semaphore and
+ * go to the setattr portal. */
+int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
+ void *ea, int ealen, void *ea2, int ea2len,
+ struct ptlrpc_request **request)
+{
+ struct ptlrpc_request *req;
+ struct mdt_rec_setattr *rec;
+ struct mdc_rpc_lock *rpc_lock;
+ struct obd_device *obd = exp->exp_obd;
+ int size[6] = { sizeof(struct ptlrpc_body),
+ sizeof(*rec), 0, 0, ealen, ea2len };
+ int bufcount = 4, rc;
+ ENTRY;
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/miscdevice.h>
+ LASSERT(op_data != NULL);
-#define DEBUG_SUBSYSTEM S_MDC
+ size[REQ_REC_OFF + 1] = op_data->op_capa1 ?
+ sizeof(struct lustre_capa) : 0;
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
+ if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN))
+ size[REQ_REC_OFF + 2] = sizeof(struct mdt_epoch);
-extern int mdc_reint(struct ptlrpc_client *peer, struct ptlrpc_request *request);
+ if (ealen > 0) {
+ bufcount++;
+ if (ea2len > 0)
+ bufcount++;
+ }
-int mdc_setattr(struct ptlrpc_client *peer,
- struct inode *inode, struct iattr *iattr,
- struct ptlrpc_request **request)
-{
- int rc;
- struct mds_rec_setattr *rec;
- ENTRY;
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, bufcount, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
- *request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, sizeof(*rec), NULL);
- if (!(*request)) {
- CERROR("mdc request: cannot pack\n");
- return -ENOMEM;
- }
+ if (op_data->op_attr.ia_valid & ATTR_FROM_OPEN) {
+ req->rq_request_portal = MDS_SETATTR_PORTAL; //XXX FIXME bug 249
+ rpc_lock = obd->u.cli.cl_setattr_lock;
+ } else {
+ rpc_lock = obd->u.cli.cl_rpc_lock;
+ }
- rec = mds_req_tgt((*request)->rq_req.mds);
- mds_setattr_pack(rec, inode, iattr);
- (*request)->rq_req.mds->opcode = HTON__u32(REINT_SETATTR);
- (*request)->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
+ if (op_data->op_attr.ia_valid & (ATTR_MTIME | ATTR_CTIME))
+ CDEBUG(D_INODE, "setting mtime %lu, ctime %lu\n",
+ LTIME_S(op_data->op_attr.ia_mtime),
+ LTIME_S(op_data->op_attr.ia_ctime));
+ mdc_setattr_pack(req, REQ_REC_OFF, op_data, ea, ealen, ea2, ea2len);
- rc = mdc_reint(peer, *request);
+ size[REPLY_REC_OFF] = sizeof(struct mdt_body);
+ size[REPLY_REC_OFF + 1] = sizeof(struct lustre_capa);
+ ptlrpc_req_set_repsize(req, 3, size);
- EXIT;
- return rc;
+ rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL);
+ *request = req;
+ if (rc == -ERESTARTSYS)
+ rc = 0;
+
+ RETURN(rc);
}
-int mdc_create(struct ptlrpc_client *peer,
- struct inode *dir, const char *name, int namelen,
- const char *tgt, int tgtlen,
- int mode, __u64 id, __u32 uid, __u32 gid, __u64 time,
- struct ptlrpc_request **request)
+int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
+ const void *data, int datalen, int mode, __u32 uid, __u32 gid,
+ __u32 cap_effective, __u64 rdev, struct ptlrpc_request **request)
{
- int rc;
- struct mds_rec_create *rec;
+ int size[5] = { sizeof(struct ptlrpc_body),
+ sizeof(struct mdt_rec_create),
+ 0, op_data->op_namelen + 1 };
+ struct obd_device *obd = exp->exp_obd;
+ int level, bufcount = 4, rc;
+ struct ptlrpc_request *req;
ENTRY;
- (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(namelen) +
- size_round0(tgtlen), NULL);
- if (!(*request)) {
- CERROR("mdc_create: cannot pack\n");
- return -ENOMEM;
- }
-
- (*request)->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt((*request)->rq_req.mds);
- mds_create_pack(rec, dir, name, namelen, mode, id, uid, gid, time,
- tgt, tgtlen);
-
- rc = mdc_reint(peer, (*request));
-
- EXIT;
- return rc;
+ /* For case if upper layer did not alloc fid, do it now. */
+ if (!fid_is_sane(&op_data->op_fid2)) {
+ /*
+ * mdc_fid_alloc() may return errno 1 in case of switch to new
+ * sequence, handle this.
+ */
+ rc = mdc_fid_alloc(exp, &op_data->op_fid2, op_data);
+ if (rc < 0) {
+ CERROR("Can't alloc new fid, rc %d\n", rc);
+ RETURN(rc);
+ }
+ }
+
+ size[REQ_REC_OFF + 1] = op_data->op_capa1 ?
+ sizeof(struct lustre_capa) : 0;
+
+ if (data && datalen) {
+ size[bufcount] = datalen;
+ bufcount++;
+ }
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, bufcount, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ /*
+ * mdc_create_pack() fills msg->bufs[1] with name and msg->bufs[2] with
+ * tgt, for symlinks or lov MD data.
+ */
+ mdc_create_pack(req, REQ_REC_OFF, op_data, data, datalen, mode, uid,
+ gid, cap_effective, rdev);
+
+ size[REPLY_REC_OFF] = sizeof(struct mdt_body);
+ size[REPLY_REC_OFF + 1] = sizeof(struct lustre_capa);
+ ptlrpc_req_set_repsize(req, 3, size);
+
+ level = LUSTRE_IMP_FULL;
+ resend:
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, level);
+
+ /* Resend if we were told to. */
+ if (rc == -ERESTARTSYS) {
+ level = LUSTRE_IMP_RECOVER;
+ goto resend;
+ } else if (rc == 0) {
+ struct mdt_body *body;
+ struct lustre_capa *capa;
+
+ body = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*body));
+ LASSERT(body);
+ if (body->valid & OBD_MD_FLMDSCAPA) {
+ capa = lustre_unpack_capa(req->rq_repmsg,
+ REPLY_REC_OFF + 1);
+ if (capa == NULL) {
+ CERROR("Missing/short MDS capability\n");
+ rc = -EPROTO;
+ }
+ }
+ }
+
+ *request = req;
+ RETURN(rc);
}
-int mdc_unlink(struct ptlrpc_client *peer,
- struct inode *dir, const char *name, int namelen,
+int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request)
{
- int rc;
- struct mds_rec_unlink *rec;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct ptlrpc_request *req = *request;
+ int size[4] = { sizeof(struct ptlrpc_body),
+ sizeof(struct mdt_rec_unlink),
+ 0, op_data->op_namelen + 1 };
+ int rc;
+ ENTRY;
+
+ LASSERT(req == NULL);
- (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(namelen), NULL);
- if (!(*request)) {
- CERROR("mdc_unlink: cannot pack\n");
- return -ENOMEM;
- }
+ size[REQ_REC_OFF + 1] = op_data->op_capa1 ?
+ sizeof(struct lustre_capa) : 0;
- (*request)->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, 4, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+ *request = req;
- rec = mds_req_tgt((*request)->rq_req.mds);
- mds_unlink_pack(rec, dir, name, namelen);
+ size[REPLY_REC_OFF] = sizeof(struct mdt_body);
+ size[REPLY_REC_OFF + 1] = obd->u.cli.cl_max_mds_easize;
+ size[REPLY_REC_OFF + 2] = obd->u.cli.cl_max_mds_cookiesize;
+ ptlrpc_req_set_repsize(req, 4, size);
- rc = mdc_reint(peer, (*request));
+ mdc_unlink_pack(req, REQ_REC_OFF, op_data);
- EXIT;
- return rc;
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
+ if (rc == -ERESTARTSYS)
+ rc = 0;
+ RETURN(rc);
}
-int mdc_link(struct ptlrpc_client *peer, struct dentry *src,
- struct inode *dir, const char *name, int namelen,
+int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request)
{
- int rc;
- struct mds_rec_link *rec;
+ struct obd_device *obd = exp->exp_obd;
+ struct ptlrpc_request *req;
+ int size[5] = { sizeof(struct ptlrpc_body),
+ sizeof(struct mdt_rec_link),
+ 0, 0, op_data->op_namelen + 1 };
+ int rc;
ENTRY;
- (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(namelen), NULL);
- if (!(*request)) {
- CERROR("mdc_link: cannot pack\n");
- return -ENOMEM;
- }
+ size[REQ_REC_OFF + 1] = op_data->op_capa1 ?
+ sizeof(struct lustre_capa) : 0;
+ size[REQ_REC_OFF + 2] = op_data->op_capa2 ?
+ sizeof(struct lustre_capa) : 0;
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, 5, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
- (*request)->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
+ mdc_link_pack(req, REQ_REC_OFF, op_data);
- rec = mds_req_tgt((*request)->rq_req.mds);
- mds_link_pack(rec, src->d_inode, dir, name, namelen);
+ size[REPLY_REC_OFF] = sizeof(struct mdt_body);
+ ptlrpc_req_set_repsize(req, 2, size);
- rc = mdc_reint(peer, (*request));
- EXIT;
- return rc;
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
+ *request = req;
+ if (rc == -ERESTARTSYS)
+ rc = 0;
+
+ RETURN(rc);
}
-int mdc_rename(struct ptlrpc_client *peer, struct inode *src,
- struct inode *tgt, const char *old, int oldlen,
- const char *new, int newlen,
+int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
+ const char *old, int oldlen, const char *new, int newlen,
struct ptlrpc_request **request)
{
- int rc;
- struct mds_rec_rename *rec;
+ struct obd_device *obd = exp->exp_obd;
+ struct ptlrpc_request *req;
+ int size[6] = { sizeof(struct ptlrpc_body),
+ sizeof(struct mdt_rec_rename),
+ 0, 0, oldlen + 1, newlen + 1 };
+ int rc;
ENTRY;
- (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(oldlen)
- + size_round0(newlen), NULL);
- if (!(*request)) {
- CERROR("mdc_link: cannot pack\n");
- return -ENOMEM;
- }
+ size[REQ_REC_OFF + 1] = op_data->op_capa1 ?
+ sizeof(struct lustre_capa) : 0;
+ size[REQ_REC_OFF + 2] = op_data->op_capa2 ?
+ sizeof(struct lustre_capa) : 0;
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, 6, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
- (*request)->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
+ mdc_rename_pack(req, REQ_REC_OFF, op_data, old, oldlen, new, newlen);
- rec = mds_req_tgt((*request)->rq_req.mds);
- mds_rename_pack(rec, src, tgt, old, oldlen, new, newlen);
+ size[REPLY_REC_OFF] = sizeof(struct mdt_body);
+ size[REPLY_REC_OFF + 1] = obd->u.cli.cl_max_mds_easize;
+ size[REPLY_REC_OFF + 2] = obd->u.cli.cl_max_mds_cookiesize;
+ ptlrpc_req_set_repsize(req, 4, size);
- rc = mdc_reint(peer, (*request));
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
+ *request = req;
+ if (rc == -ERESTARTSYS)
+ rc = 0;
- EXIT;
- return rc;
+ RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff