/* -*- 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 Lustre, http://www.sf.net/projects/lustre/
*
- * Portals is free software; you can redistribute it and/or
+ * 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.
*
- * Portals is distributed in the hope that it will be useful,
+ * 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.
*
* You should have received a copy of the GNU General Public License
- * along with Portals; if not, write to the Free Software
+ * along with Lustre; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
*/
-#define EXPORT_SYMTAB
-
-#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>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/miscdevice.h>
-
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
#define DEBUG_SUBSYSTEM S_MDC
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
+#ifdef __KERNEL__
+# include <linux/config.h>
+# include <linux/module.h>
+# include <linux/kernel.h>
+#else
+# include <liblustre.h>
+#endif
+
+#include <linux/obd_class.h>
#include <linux/lustre_mds.h>
+#include "mdc_internal.h"
-extern int mdc_reint(struct ptlrpc_client *peer, struct ptlrpc_request *request);
+/* this function actually sends request to desired target. */
+static int mdc_reint(struct ptlrpc_request *request,
+ struct mdc_rpc_lock *rpc_lock,
+ int level)
+{
+ int rc;
+
+ request->rq_send_state = level;
+
+ if (rpc_lock)
+ mdc_get_rpc_lock(rpc_lock, NULL);
+
+ rc = ptlrpc_queue_wait(request);
+
+ if (rpc_lock)
+ mdc_put_rpc_lock(rpc_lock, NULL);
+ if (rc)
+ CDEBUG(D_INFO, "error in handling %d\n", rc);
+ else if (!lustre_swab_repbuf(request, 0, sizeof(struct mds_body),
+ lustre_swab_mds_body)) {
+ CERROR ("Can't unpack mds_body\n");
+ rc = -EPROTO;
+ }
+ return rc;
+}
-int mdc_setattr(struct ptlrpc_client *peer,
- struct inode *inode, struct iattr *iattr,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
+/* 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 mdc_op_data *data,
+ struct iattr *iattr, void *ea, int ealen, void *ea2,
+ int ea2len, struct ptlrpc_request **request)
{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_setattr *rec;
-
- request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, sizeof(*rec), NULL);
- if (!request) {
- CERROR("mdc request: cannot pack\n");
- return -ENOMEM;
- }
-
- 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);
-
- rc = mdc_reint(peer, request);
- if (rc)
- return rc;
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- return 0;
+ struct ptlrpc_request *req;
+ struct mds_rec_setattr *rec;
+ struct mdc_rpc_lock *rpc_lock;
+ struct obd_device *obd = exp->exp_obd;
+ int rc, bufcount = 2, size[4] = {0, sizeof(*rec), ealen, ea2len};
+ ENTRY;
+
+ LASSERT(iattr != NULL);
+
+ size[0] = mdc_get_secdesc_size();
+ if (ealen > 0) {
+ bufcount++;
+ if (ea2len > 0)
+ bufcount++;
+ }
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, bufcount, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ mdc_pack_secdesc(req, size[0]);
+
+ if (iattr->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;
+ }
+
+ if (iattr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
+ CDEBUG(D_INODE, "setting mtime %lu, ctime %lu\n",
+ LTIME_S(iattr->ia_mtime), LTIME_S(iattr->ia_ctime));
+ mdc_setattr_pack(req->rq_reqmsg, 1, data, iattr, ea, ealen,
+ ea2, ea2len);
+
+ size[0] = sizeof(struct mds_body);
+ req->rq_replen = lustre_msg_size(1, size);
+
+ 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 mds_rep **rep, struct ptlrep_hdr **hdr)
+int mdc_create(struct obd_export *exp, struct mdc_op_data *op_data,
+ const void *data, int datalen, int mode, __u32 uid,
+ __u32 gid, __u64 rdev, struct ptlrpc_request **request)
{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_create *rec;
-
- 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);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
+ struct obd_device *obd = exp->exp_obd;
+ struct ptlrpc_request *req;
+ int rc, size[4] = {0, sizeof(struct mds_rec_create),
+ op_data->namelen + 1};
+ int level, bufcount = 3;
+ ENTRY;
+
+ size[0] = mdc_get_secdesc_size();
+ 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_pack_secdesc(req, size[0]);
+
+ /*
+ * 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->rq_reqmsg, 1, op_data, mode, rdev, data, datalen);
+
+ size[0] = sizeof(struct mds_body);
+ req->rq_replen = lustre_msg_size(1, 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;
+ }
+
+ if (!rc)
+ mdc_store_inode_generation(exp, req, MDS_REQ_REC_OFF, 0);
+
+ *request = req;
+ RETURN(rc);
}
-int mdc_unlink(struct ptlrpc_client *peer,
- struct inode *dir, const char *name, int namelen,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
+int mdc_unlink(struct obd_export *exp, struct mdc_op_data *data,
+ struct ptlrpc_request **request)
{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_unlink *rec;
-
- 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;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_unlink_pack(rec, dir, name, namelen);
-
- rc = mdc_reint(peer, request);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct ptlrpc_request *req = *request;
+ int rc, size[4] = {0, sizeof(struct mds_rec_unlink),
+ data->namelen + 1,
+ obd->u.cli.cl_max_mds_cookiesize};
+ ENTRY;
+ LASSERT(req == NULL);
+
+ size[0] = mdc_get_secdesc_size();
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, 4, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ mdc_pack_secdesc(req, size[0]);
+ *request = req;
+
+ size[0] = sizeof(struct mds_body);
+ size[1] = obd->u.cli.cl_max_mds_easize;
+ size[2] = obd->u.cli.cl_max_mds_cookiesize;
+
+ req->rq_replen = lustre_msg_size(3, size);
+
+ mdc_unlink_pack(req->rq_reqmsg, 1, data);
+
+ 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,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
+int mdc_link(struct obd_export *exp, struct mdc_op_data *data,
+ struct ptlrpc_request **request)
{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_link *rec;
-
- 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;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_link_pack(rec, src->d_inode, dir, name, namelen);
-
- rc = mdc_reint(peer, request);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
+ struct obd_device *obd = exp->exp_obd;
+ struct ptlrpc_request *req;
+ int rc, size[3] = {0, sizeof(struct mds_rec_link), data->namelen + 1};
+ ENTRY;
+
+ size[0] = mdc_get_secdesc_size();
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, 3, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ mdc_pack_secdesc(req, size[0]);
+
+ mdc_link_pack(req->rq_reqmsg, 1, data);
+
+ size[0] = sizeof(struct mds_body);
+ req->rq_replen = lustre_msg_size(1, size);
+
+ 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,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
+int mdc_rename(struct obd_export *exp, struct mdc_op_data *data,
+ const char *old, int oldlen, const char *new, int newlen,
+ struct ptlrpc_request **request)
{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_rename *rec;
-
- 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;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_rename_pack(rec, src, tgt, old, oldlen, new, newlen);
-
- rc = mdc_reint(peer, request);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
+ struct obd_device *obd = exp->exp_obd;
+ struct ptlrpc_request *req;
+ int rc, size[5] = {0, sizeof(struct mds_rec_rename), oldlen + 1,
+ newlen + 1, obd->u.cli.cl_max_mds_cookiesize};
+ ENTRY;
+
+ size[0] = mdc_get_secdesc_size();
+
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
+ MDS_REINT, 5, size, NULL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ mdc_pack_secdesc(req, size[0]);
+
+ mdc_rename_pack(req->rq_reqmsg, 1, data, old, oldlen, new, newlen);
+
+ size[0] = sizeof(struct mds_body);
+ size[1] = obd->u.cli.cl_max_mds_easize;
+ size[2] = obd->u.cli.cl_max_mds_cookiesize;
+ req->rq_replen = lustre_msg_size(3, size);
+
+ rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
+ *request = req;
+ if (rc == -ERESTARTSYS)
+ rc = 0;
+
+ RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff