*
* Copyright (C) 2001-2003 Cluster File Systems, Inc.
*
- * This file is part of Lustre, 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.
*
- * Lustre 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.
*
- * 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
- * GNU General Public License for more details.
+ * 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.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
#define DEBUG_SUBSYSTEM S_MDC
-#include <linux/obd_class.h>
-#include <linux/lustre_mds.h>
-
-extern struct semaphore mdc_sem;
-
-static int mdc_reint(struct ptlrpc_request *request, int level)
+#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;
- __u32 *opcodeptr = lustre_msg_buf(request->rq_reqmsg, 0);
- request->rq_level = level;
-
- if (!(*opcodeptr == REINT_SETATTR))
- mdc_get_rpc_lock(&mdc_rpc_lock, NULL);
+ request->rq_send_state = level;
+ mdc_get_rpc_lock(rpc_lock, NULL);
rc = ptlrpc_queue_wait(request);
- if (!(*opcodeptr == REINT_SETATTR))
- mdc_put_rpc_lock(&mdc_rpc_lock, NULL);
-
- if (rc) {
+ mdc_put_rpc_lock(rpc_lock, NULL);
+ if (rc)
CDEBUG(D_INFO, "error in handling %d\n", rc);
- } else {
- /* For future resend/replays. */
- *opcodeptr |= REINT_REPLAYING;
+ 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;
}
-int mdc_setattr(struct lustre_handle *conn, struct inode *inode,
- struct iattr *iattr, void *ea, int ealen,
+/* 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 mds_rec_setattr *rec;
- int rc, bufcount = 1, size[2] = {sizeof(*rec), ealen};
+ 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;
- if (ealen > 0)
- bufcount = 2;
+ LASSERT(op_data != NULL);
+
+ size[REQ_REC_OFF + 1] = op_data->op_capa1 ?
+ sizeof(struct lustre_capa) : 0;
+
+ if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN))
+ size[REQ_REC_OFF + 2] = sizeof(struct mdt_epoch);
+
+ if (ealen > 0) {
+ bufcount++;
+ if (ea2len > 0)
+ bufcount++;
+ }
- req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, bufcount,
- size, NULL);
- if (!req)
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, bufcount, size, NULL);
+ if (req == NULL)
RETURN(-ENOMEM);
- /* XXX FIXME bug 249 */
- req->rq_request_portal = MDS_GETATTR_PORTAL;
+ 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;
+ }
- mds_setattr_pack(req, inode, iattr, ea, ealen);
+ 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);
- size[0] = sizeof(struct mds_body);
- req->rq_replen = lustre_msg_size(1, size);
+ size[REPLY_REC_OFF] = sizeof(struct mdt_body);
+ size[REPLY_REC_OFF + 1] = sizeof(struct lustre_capa);
+ ptlrpc_req_set_repsize(req, 3, size);
- rc = mdc_reint(req, LUSTRE_CONN_FULL);
+ rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL);
*request = req;
if (rc == -ERESTARTSYS)
rc = 0;
RETURN(rc);
}
-int mdc_create(struct lustre_handle *conn, struct inode *dir,
- const char *name, int namelen, const void *data, int datalen,
- int mode, __u32 uid, __u32 gid, __u64 time, __u64 rdev,
- 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 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;
- int rc, size[3] = {sizeof(struct mds_rec_create), namelen + 1, 0};
- int level, bufcount = 2;
ENTRY;
+ /* 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_conn2cliimp(conn), MDS_REINT, bufcount,
- size, NULL);
- if (!req)
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, bufcount, size, NULL);
+ if (req == NULL)
RETURN(-ENOMEM);
- /* mds_create_pack fills msg->bufs[1] with name
- * and msg->bufs[2] with tgt, for symlinks or lov MD data */
- mds_create_pack(req, 0, dir, mode, rdev, uid, gid, time,
- name, namelen, data, datalen);
+ /*
+ * 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[0] = sizeof(struct mds_body);
- req->rq_replen = lustre_msg_size(1, size);
+ 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_CONN_FULL;
+ level = LUSTRE_IMP_FULL;
resend:
- rc = mdc_reint(req, level);
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, level);
+
/* Resend if we were told to. */
if (rc == -ERESTARTSYS) {
- level = LUSTRE_CONN_RECOVD;
- req->rq_flags = 0;
+ 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;
+ }
+ }
}
- if (!rc)
- mdc_store_inode_generation(req, 0, 0);
-
*request = req;
RETURN(rc);
}
-int mdc_unlink(struct lustre_handle *conn, struct inode *dir,
- struct inode *child, __u32 mode, const char *name, int namelen,
+int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request)
{
- struct obd_device *obddev = class_conn2obd(conn);
+ struct obd_device *obd = class_exp2obd(exp);
struct ptlrpc_request *req = *request;
- int rc, size[2] = {sizeof(struct mds_rec_unlink), namelen + 1};
+ int size[4] = { sizeof(struct ptlrpc_body),
+ sizeof(struct mdt_rec_unlink),
+ 0, op_data->op_namelen + 1 };
+ int rc;
ENTRY;
LASSERT(req == NULL);
- req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 2, size,
- NULL);
- if (!req)
+ size[REQ_REC_OFF + 1] = op_data->op_capa1 ?
+ sizeof(struct lustre_capa) : 0;
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, 4, size, NULL);
+ if (req == NULL)
RETURN(-ENOMEM);
*request = req;
- size[0] = sizeof(struct mds_body);
- size[1] = obddev->u.cli.cl_max_mds_easize;
- req->rq_replen = lustre_msg_size(2, size);
+ 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);
- mds_unlink_pack(req, 0, dir, child, mode, name, namelen);
+ mdc_unlink_pack(req, REQ_REC_OFF, op_data);
- rc = mdc_reint(req, LUSTRE_CONN_FULL);
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
if (rc == -ERESTARTSYS)
rc = 0;
RETURN(rc);
}
-int mdc_link(struct lustre_handle *conn,
- struct inode *src, struct inode *dir, const char *name,
- int namelen, struct ptlrpc_request **request)
+int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
+ struct ptlrpc_request **request)
{
+ struct obd_device *obd = exp->exp_obd;
struct ptlrpc_request *req;
- int rc, size[2] = {sizeof(struct mds_rec_link), namelen + 1};
+ int size[5] = { sizeof(struct ptlrpc_body),
+ sizeof(struct mdt_rec_link),
+ 0, 0, op_data->op_namelen + 1 };
+ int rc;
ENTRY;
- req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 2, size,
- NULL);
- if (!req)
+ 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);
- mds_link_pack(req, 0, src, dir, name, namelen);
+ mdc_link_pack(req, REQ_REC_OFF, op_data);
- size[0] = sizeof(struct mds_body);
- req->rq_replen = lustre_msg_size(1, size);
+ size[REPLY_REC_OFF] = sizeof(struct mdt_body);
+ ptlrpc_req_set_repsize(req, 2, size);
- rc = mdc_reint(req, LUSTRE_CONN_FULL);
+ 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 lustre_handle *conn,
- 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)
{
+ struct obd_device *obd = exp->exp_obd;
struct ptlrpc_request *req;
- int rc, size[3] = {sizeof(struct mds_rec_rename), oldlen + 1,
- newlen + 1};
+ int size[6] = { sizeof(struct ptlrpc_body),
+ sizeof(struct mdt_rec_rename),
+ 0, 0, oldlen + 1, newlen + 1 };
+ int rc;
ENTRY;
- req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 3, size,
- NULL);
- if (!req)
+ 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);
- mds_rename_pack(req, 0, src, tgt, old, oldlen, new, newlen);
+ mdc_rename_pack(req, REQ_REC_OFF, op_data, old, oldlen, new, newlen);
- size[0] = sizeof(struct mds_body);
- req->rq_replen = lustre_msg_size(1, size);
+ 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(req, LUSTRE_CONN_FULL);
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
*request = req;
if (rc == -ERESTARTSYS)
rc = 0;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff