/* -*- 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"
* 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));
struct ptlrpc_request *req = mdt_info_req(info);
ENTRY;
- /* transaction is occured already */
+ /* transaction has occurred already */
if (lustre_msg_get_transno(req->rq_repmsg) != 0) {
EXIT;
return;
req->rq_transno = info->mti_transno;
lustre_msg_set_transno(req->rq_repmsg, info->mti_transno);
- lustre_msg_set_last_xid(req->rq_repmsg, req->rq_xid);
EXIT;
}
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
LASSERT(info->mti_rr.rr_handle != NULL);
old_mfd = mdt_handle2mfd(info, info->mti_rr.rr_handle);
if (old_mfd) {
- CDEBUG(D_HA, "del orph mfd %p cookie" LPX64"\n",
- mfd, info->mti_rr.rr_handle->cookie);
+ CDEBUG(D_HA, "del orph mfd %p fid=("DFID") "
+ "cookie=" LPX64"\n",
+ mfd,
+ PFID(mdt_object_fid(mfd->mfd_object)),
+ info->mti_rr.rr_handle->cookie);
spin_lock(&med->med_open_lock);
class_handle_unhash(&old_mfd->mfd_handle);
list_del_init(&old_mfd->mfd_list);
spin_unlock(&med->med_open_lock);
- mdt_mfd_free(old_mfd);
+ mdt_mfd_close(info, old_mfd);
}
CDEBUG(D_HA, "Store old cookie "LPX64" in new mfd\n",
info->mti_rr.rr_handle->cookie);
mfd->mfd_old_handle.cookie =
info->mti_rr.rr_handle->cookie;
}
- spin_lock(&med->med_open_lock);
- list_add(&mfd->mfd_list, &med->med_open_head);
- spin_unlock(&med->med_open_lock);
-
repbody->handle.cookie = mfd->mfd_handle.h_cookie;
+
+ if (req->rq_export->exp_disconnected) {
+ spin_lock(&med->med_open_lock);
+ class_handle_unhash(&mfd->mfd_handle);
+ list_del_init(&mfd->mfd_list);
+ spin_unlock(&med->med_open_lock);
+ mdt_mfd_close(info, mfd);
+ } else {
+ spin_lock(&med->med_open_lock);
+ list_add(&mfd->mfd_list, &med->med_open_head);
+ spin_unlock(&med->med_open_lock);
+ }
+
mdt_empty_transno(info);
} else
rc = -ENOMEM;
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);
ma->ma_lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
ma->ma_lmm_size = req_capsule_get_size(pill, &RMF_MDT_MD,
RCL_SERVER);
- ma->ma_need = MA_INODE | MA_LOV;
+ ma->ma_need = MA_INODE;
+ if (ma->ma_lmm_size > 0)
+ ma->ma_need |= MA_LOV;
+
ma->ma_valid = 0;
mdt_req_from_lcd(req, med->med_lcd);
}
child = mdt_object_find(env, mdt, rr->rr_fid2);
if (IS_ERR(child)) {
- rc = PTR_ERR(parent);
+ 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_object_put(env, parent);
mdt_export_evict(exp);
EXIT;
return;
RETURN(rc);
}
+static int mdt_open_anon_by_fid(struct mdt_thread_info* info,
+ struct ldlm_reply *rep,
+ struct mdt_lock_handle *lhc)
+{
+ __u32 flags = info->mti_spec.sp_cr_flags;
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct md_attr *ma = &info->mti_attr;
+ struct mdt_object *o;
+ int rc;
+ ldlm_mode_t lm;
+ ENTRY;
+
+ o = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid2);
+ if (IS_ERR(o))
+ RETURN(rc = PTR_ERR(o));
+
+ rc = mdt_object_exists(o);
+ if (rc == 0) {
+ mdt_set_disposition(info, rep, (DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_NEG));
+ GOTO(out, rc = -ENOENT);
+ } else if (rc < 0) {
+ CERROR("NFS remote open shouldn't happen.\n");
+ GOTO(out, rc);
+ }
+
+ mdt_set_disposition(info, rep, (DISP_IT_EXECD |
+ DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_POS));
+
+ if (flags & FMODE_WRITE)
+ lm = LCK_CW;
+ else if (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, o, lhc,
+ MDS_INODELOCK_LOOKUP | MDS_INODELOCK_OPEN,
+ MDT_CROSS_LOCK);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = mo_attr_get(info->mti_env, mdt_object_child(o), ma);
+ if (rc)
+ GOTO(out, rc);
+
+ if (flags & MDS_OPEN_LOCK)
+ mdt_set_disposition(info, rep, DISP_OPEN_LOCK);
+ rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
+
+ if (!(flags & MDS_OPEN_LOCK))
+ mdt_object_unlock(info, o, lhc, 1);
+
+ GOTO(out, rc);
+out:
+ mdt_object_put(info->mti_env, o);
+ return rc;
+}
+
int mdt_pin(struct mdt_thread_info* info)
{
ENTRY;
__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,
ma->ma_lmm = req_capsule_server_get(info->mti_pill, &RMF_MDT_MD);
ma->ma_lmm_size = req_capsule_get_size(info->mti_pill, &RMF_MDT_MD,
RCL_SERVER);
- ma->ma_need = MA_INODE | MA_LOV;
+ ma->ma_need = MA_INODE;
+ if (ma->ma_lmm_size > 0)
+ ma->ma_need |= MA_LOV;
+
ma->ma_valid = 0;
LASSERT(info->mti_pill->rc_fmt == &RQF_LDLM_INTENT_OPEN);
ldlm_rep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
- /* TODO: JOIN file */
- if (create_flags & MDS_OPEN_JOIN_FILE) {
- CERROR("JOIN file will be supported soon\n");
+ if (unlikely(create_flags & MDS_OPEN_JOIN_FILE)) {
+ CERROR("file join is not supported anymore.\n");
GOTO(out, result = err_serious(-EOPNOTSUPP));
}
+ msg_flags = lustre_msg_get_flags(req->rq_reqmsg);
+
+ if ((create_flags & (MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS)) &&
+ info->mti_spec.u.sp_ea.eadata == NULL)
+ GOTO(out, result = err_serious(-EINVAL));
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);
}
CDEBUG(D_INFO, "Open replay did find object, continue as "
"regular open\n");
+ } else if (rr->rr_namelen == 0 && !info->mti_cross_ref) {
+ result = mdt_open_anon_by_fid(info, ldlm_rep, lhc);
+ if (result != -ENOENT)
+ GOTO(out, result);
}
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_OPEN_PACK))
/* Not found and with MDS_OPEN_CREAT: let's create it. */
mdt_set_disposition(info, ldlm_rep, DISP_OPEN_CREATE);
+ info->mti_mos[0] = parent;
+ info->mti_mos[1] = child;
+ result = mdt_version_get_check(info, 0);
+ if (result)
+ GOTO(out_child, result);
+
/* Let lower layers know what is lock mode on directory. */
info->mti_spec.sp_cr_mode =
mdt_dlm_mode2mdl_mode(lh->mlh_pdo_mode);
* not exist.
*/
info->mti_spec.sp_cr_lookup = 0;
+ info->mti_spec.sp_feat = &dt_directory_features;
result = mdo_create(info->mti_env,
mdt_object_child(parent),
* 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;
}
req_capsule_set_size(info->mti_pill, &RMF_LOGCOOKIES, RCL_SERVER,
info->mti_mdt->mdt_max_cookiesize);
rc = req_capsule_server_pack(info->mti_pill);
- if (mdt_check_resent(info, mdt_reconstruct_generic, NULL))
+ if (mdt_check_resent(info, mdt_reconstruct_generic, NULL)) {
+ if (rc == 0)
+ mdt_shrink_reply(info);
RETURN(lustre_msg_get_status(req->rq_repmsg));
+ }
/* Continue to close handle even if we can not pack reply */
if (rc == 0) {
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);
CDEBUG(D_INODE, "no handle for file close: fid = "DFID
": cookie = "LPX64"\n", PFID(info->mti_rr.rr_fid1),
info->mti_epoch->handle.cookie);
- rc = err_serious(-ESTALE);
+ /** not serious error since bug 3633 */
+ rc = -ESTALE;
} else {
class_handle_unhash(&mfd->mfd_handle);
list_del_init(&mfd->mfd_list);
if (mfd == NULL) {
spin_unlock(&med->med_open_lock);
CDEBUG(D_INODE, "no handle for done write: fid = "DFID
- ": cookie = "LPX64"\n", PFID(info->mti_rr.rr_fid1),
- info->mti_epoch->handle.cookie);
+ ": cookie = "LPX64" ioepoch = "LPU64"\n",
+ PFID(info->mti_rr.rr_fid1),
+ info->mti_epoch->handle.cookie,
+ info->mti_epoch->ioepoch);
RETURN(-ESTALE);
}
mdt_empty_transno(info);
RETURN(rc);
}
-
git://git.whamcloud.com / fs / lustre-release.git / blobdiff