/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * linux/mdt/mdt_open.c
- * Lustre Metadata Target (mdt) open/close file handling
+ * GPL HEADER START
*
- * Copyright (C) 2002-2006 Cluster File Systems, Inc.
- * Author: Huang Hua <huanghua@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * 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.
+ * This program 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * 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
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/mdt/mdt_open.c
+ *
+ * Lustre Metadata Target (mdt) open/close file handling
+ *
+ * Author: Huang Hua <huanghua@clusterfs.com>
*/
#ifndef EXPORT_SYMTAB
#endif
#define DEBUG_SUBSYSTEM S_MDS
-#include <linux/lustre_acl.h>
+#include <lustre_acl.h>
#include <lustre_mds.h>
#include "mdt_internal.h"
OBD_ALLOC_PTR(mfd);
if (mfd != NULL) {
- INIT_LIST_HEAD(&mfd->mfd_handle.h_link);
- INIT_LIST_HEAD(&mfd->mfd_list);
+ CFS_INIT_LIST_HEAD(&mfd->mfd_handle.h_link);
+ CFS_INIT_LIST_HEAD(&mfd->mfd_list);
class_handle_hash(&mfd->mfd_handle, mdt_mfd_get);
}
RETURN(mfd);
{
spin_lock(&info->mti_mdt->mdt_ioepoch_lock);
if (info->mti_epoch->ioepoch == mo->mot_ioepoch) {
- LASSERT(!mdt_epoch_opened(mo));
+ LASSERT(!mdt_epoch_opened(mo));
mo->mot_ioepoch = 0;
mo->mot_flags = 0;
}
int rc = 0;
ENTRY;
- if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
+ if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
!S_ISREG(lu_object_attr(&o->mot_obj.mo_lu)))
RETURN(0);
* and "close", maybe someone has changed the file mode
* or flags, or the file created mode do not permit wirte,
* and so on. Just set MDS_PERM_BYPASS for all the cases. */
- info->mti_attr.ma_attr_flags |= MDS_PERM_BYPASS;
+ info->mti_attr.ma_attr_flags |= MDS_PERM_BYPASS | MDS_SOM;
info->mti_attr.ma_attr.la_valid &= LA_SIZE | LA_BLOCKS |
LA_ATIME | LA_MTIME | LA_CTIME;
RETURN(mdt_attr_set(info, o, 0));
isreg = S_ISREG(la->la_mode);
isdir = S_ISDIR(la->la_mode);
- if ((isreg && !(ma->ma_valid & MA_LOV))) {
+ if (isreg && !(ma->ma_valid & MA_LOV)) {
/*
* No EA, check whether it is will set regEA and dirEA since in
* above attr get, these size might be zero, so reset it, to
/* Check wheather old cookie already exist in
* the list, becasue when do recovery, client
* might be disconnected from server, and
- * restart replay, so there maybe some orphan
+ * restart replay, so there maybe some orphan
* mfd here, we should remove them */
LASSERT(info->mti_rr.rr_handle != NULL);
old_mfd = mdt_handle2mfd(info, info->mti_rr.rr_handle);
int flags, int created, struct ldlm_reply *rep)
{
struct ptlrpc_request *req = mdt_info_req(info);
+ struct obd_export *exp = req->rq_export;
struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
- struct mdt_device *mdt = info->mti_mdt;
struct md_attr *ma = &info->mti_attr;
struct lu_attr *la = &ma->ma_attr;
struct mdt_file_data *mfd;
islnk = S_ISLNK(la->la_mode);
mdt_pack_attr2body(info, repbody, la, mdt_object_fid(o));
- if (med->med_rmtclient) {
+ if (exp_connect_rmtclient(exp)) {
void *buf = req_capsule_server_get(info->mti_pill, &RMF_ACL);
rc = mdt_pack_remote_perm(info, o, buf);
}
}
#ifdef CONFIG_FS_POSIX_ACL
- else if (req->rq_export->exp_connect_flags & OBD_CONNECT_ACL) {
+ else if (exp->exp_connect_flags & OBD_CONNECT_ACL) {
const struct lu_env *env = info->mti_env;
struct md_object *next = mdt_object_child(o);
struct lu_buf *buf = &info->mti_buf;
}
#endif
- if (mdt->mdt_opts.mo_mds_capa) {
+ if (info->mti_mdt->mdt_opts.mo_mds_capa &&
+ exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA) {
struct lustre_capa *capa;
capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA1);
LASSERT(capa);
capa->lc_opc = CAPA_OPC_MDS_DEFAULT;
- capa->lc_uid = 0;
rc = mo_capa_get(info->mti_env, mdt_object_child(o), capa, 0);
if (rc)
RETURN(rc);
repbody->valid |= OBD_MD_FLMDSCAPA;
}
- if (mdt->mdt_opts.mo_oss_capa &&
+ if (info->mti_mdt->mdt_opts.mo_oss_capa &&
+ exp->exp_connect_flags & OBD_CONNECT_OSS_CAPA &&
S_ISREG(lu_object_attr(&o->mot_obj.mo_lu))) {
struct lustre_capa *capa;
capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
LASSERT(capa);
capa->lc_opc = CAPA_OPC_OSS_DEFAULT | capa_open_opc(flags);
- capa->lc_uid = 0;
rc = mo_capa_get(info->mti_env, mdt_object_child(o), capa, 0);
if (rc)
RETURN(rc);
RETURN(rc);
}
-extern void mdt_req_from_mcd(struct ptlrpc_request *req,
- struct mdt_client_data *mcd);
+extern void mdt_req_from_lcd(struct ptlrpc_request *req,
+ struct lsd_client_data *lcd);
void mdt_reconstruct_open(struct mdt_thread_info *info,
struct mdt_lock_handle *lhc)
struct req_capsule *pill = info->mti_pill;
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
- struct mdt_client_data *mcd = med->med_mcd;
+ struct lsd_client_data *lcd = med->med_lcd;
struct md_attr *ma = &info->mti_attr;
struct mdt_reint_record *rr = &info->mti_rr;
__u32 flags = info->mti_spec.sp_cr_flags;
ma->ma_need = MA_INODE | MA_LOV;
ma->ma_valid = 0;
- mdt_req_from_mcd(req, med->med_mcd);
- mdt_set_disposition(info, ldlm_rep, mcd->mcd_last_data);
+ mdt_req_from_lcd(req, med->med_lcd);
+ mdt_set_disposition(info, ldlm_rep, lcd->lcd_last_data);
CERROR("This is reconstruct open: disp="LPX64", result=%d\n",
ldlm_rep->lock_policy_res1, req->rq_status);
GOTO(out, rc = req->rq_status);
if (mdt_get_disposition(ldlm_rep, DISP_OPEN_CREATE)) {
+ struct obd_export *exp = req->rq_export;
/*
* We failed after creation, but we do not know in which step
* we failed. So try to check the child object.
*/
parent = mdt_object_find(env, mdt, rr->rr_fid1);
- LASSERT(!IS_ERR(parent));
-
+ if (IS_ERR(parent)) {
+ rc = PTR_ERR(parent);
+ LCONSOLE_WARN("Parent "DFID" lookup error %d."
+ " Evicting client %s with export %s.\n",
+ PFID(mdt_object_fid(parent)), rc,
+ obd_uuid2str(&exp->exp_client_uuid),
+ obd_export_nid2str(exp));
+ mdt_export_evict(exp);
+ EXIT;
+ return;
+ }
child = mdt_object_find(env, mdt, rr->rr_fid2);
- LASSERT(!IS_ERR(child));
-
+ if (IS_ERR(child)) {
+ rc = PTR_ERR(child);
+ LCONSOLE_WARN("Child "DFID" lookup error %d."
+ " Evicting client %s with export %s.\n",
+ PFID(mdt_object_fid(child)), rc,
+ obd_uuid2str(&exp->exp_client_uuid),
+ obd_export_nid2str(exp));
+ mdt_export_evict(exp);
+ EXIT;
+ return;
+ }
rc = mdt_object_exists(child);
if (rc > 0) {
struct md_object *next;
__u32 create_flags = info->mti_spec.sp_cr_flags;
struct mdt_reint_record *rr = &info->mti_rr;
struct lu_name *lname;
- int result;
+ int result, rc;
int created = 0;
+ __u32 msg_flags;
ENTRY;
OBD_FAIL_TIMEOUT_ORSET(OBD_FAIL_MDS_PAUSE_OPEN, OBD_FAIL_ONCE,
CERROR("JOIN file will be supported soon\n");
GOTO(out, result = err_serious(-EOPNOTSUPP));
}
+ msg_flags = lustre_msg_get_flags(req->rq_reqmsg);
CDEBUG(D_INODE, "I am going to open "DFID"/(%s->"DFID") "
"cr_flag=0%o mode=0%06o msg_flag=0x%x\n",
PFID(rr->rr_fid1), rr->rr_name,
PFID(rr->rr_fid2), create_flags,
- ma->ma_attr.la_mode, lustre_msg_get_flags(req->rq_reqmsg));
+ ma->ma_attr.la_mode, msg_flags);
- if ((lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) ||
+ if (msg_flags & MSG_REPLAY ||
(req->rq_export->exp_libclient && create_flags&MDS_OPEN_HAS_EA)) {
/* This is a replay request or from liblustre with ea. */
result = mdt_open_by_fid(info, ldlm_rep);
* The object is on remote node, return its FID for remote open.
*/
if (result == -EREMOTE) {
- int rc;
-
/*
* Check if this lock already was sent to client and
* this is resent case. For resent case do not take lock
if (lustre_handle_is_used(&lhc->mlh_reg_lh)) {
struct ldlm_lock *lock;
- LASSERT(lustre_msg_get_flags(req->rq_reqmsg) &
- MSG_RESENT);
+ LASSERT(msg_flags & MSG_RESENT);
lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
if (!lock) {
}
}
+ LASSERT(!lustre_handle_is_used(&lhc->mlh_reg_lh));
+
+ /* get openlock if this is not replay and if a client requested it */
+ if (!(msg_flags & MSG_REPLAY) && create_flags & MDS_OPEN_LOCK) {
+ ldlm_mode_t lm;
+
+ LASSERT(!created);
+ if (create_flags & FMODE_WRITE)
+ lm = LCK_CW;
+ else if (create_flags & MDS_FMODE_EXEC)
+ lm = LCK_PR;
+ else
+ lm = LCK_CR;
+ mdt_lock_handle_init(lhc);
+ mdt_lock_reg_init(lhc, lm);
+ rc = mdt_object_lock(info, child, lhc,
+ MDS_INODELOCK_LOOKUP | MDS_INODELOCK_OPEN,
+ MDT_CROSS_LOCK);
+ if (rc) {
+ result = rc;
+ GOTO(out_child, result);
+ } else {
+ result = -EREMOTE;
+ mdt_set_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
+ }
+ }
+
/* Try to open it now. */
- result = mdt_finish_open(info, parent, child, create_flags,
- created, ldlm_rep);
-
- if (result != 0 && created) {
- int rc2;
- ma->ma_need = 0;
- ma->ma_valid = 0;
- ma->ma_cookie_size = 0;
- info->mti_no_need_trans = 1;
- rc2 = mdo_unlink(info->mti_env,
- mdt_object_child(parent),
- mdt_object_child(child),
- lname,
- &info->mti_attr);
- if (rc2 != 0)
- CERROR("Error in cleanup of open\n");
+ rc = mdt_finish_open(info, parent, child, create_flags,
+ created, ldlm_rep);
+ if (rc) {
+ result = rc;
+ if (lustre_handle_is_used(&lhc->mlh_reg_lh))
+ /* openlock was acquired and mdt_finish_open failed -
+ drop the openlock */
+ mdt_object_unlock(info, child, lhc, 1);
+ if (created) {
+ ma->ma_need = 0;
+ ma->ma_valid = 0;
+ ma->ma_cookie_size = 0;
+ info->mti_no_need_trans = 1;
+ rc = mdo_unlink(info->mti_env,
+ mdt_object_child(parent),
+ mdt_object_child(child),
+ lname,
+ &info->mti_attr);
+ if (rc != 0)
+ CERROR("Error in cleanup of open\n");
+ }
}
EXIT;
out_child:
out_parent:
mdt_object_unlock_put(info, parent, lh, result);
out:
- if (result)
+ if (result && result != -EREMOTE)
lustre_msg_set_transno(req->rq_repmsg, 0);
return result;
}
mdt_write_allow(info->mti_mdt, o);
} else if (mode & FMODE_EPOCH) {
ret = mdt_epoch_close(info, o);
- }
-
+ }
+
/* Update atime on close only. */
if ((mode & MDS_FMODE_EXEC || mode & FMODE_READ || mode & FMODE_WRITE)
&& (ma->ma_valid & MA_INODE) && (ma->ma_attr.la_valid & LA_ATIME)) {
ma->ma_need = MA_INODE | MA_LOV | MA_COOKIE;
repbody->eadatasize = 0;
repbody->aclsize = 0;
- } else
+ } else {
rc = err_serious(rc);
+ }
med = &req->rq_export->exp_mdt_data;
spin_lock(&med->med_open_lock);
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CLOSE_PACK))
RETURN(err_serious(-ENOMEM));
+ if (OBD_FAIL_CHECK_RESET(OBD_FAIL_MDS_CLOSE_NET_REP,
+ OBD_FAIL_MDS_CLOSE_NET_REP))
+ info->mti_fail_id = OBD_FAIL_MDS_CLOSE_NET_REP;
RETURN(rc ? rc : ret);
}
": cookie = "LPX64"\n", PFID(info->mti_rr.rr_fid1),
info->mti_epoch->handle.cookie);
RETURN(-ESTALE);
- }
-
+ }
+
LASSERT(mfd->mfd_mode == FMODE_EPOCH ||
mfd->mfd_mode == FMODE_EPOCHLCK);
class_handle_unhash(&mfd->mfd_handle);
mdt_empty_transno(info);
RETURN(rc);
}
-