*
* 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
- *
- * 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <lustre_acl.h>
#include <lustre_mds.h>
#include "mdt_internal.h"
+#include <lustre_nodemap.h>
/* we do nothing because we do not have refcount now */
static void mdt_mfd_get(void *mfdp)
/* Create a new mdt_file_data struct, initialize it,
* and insert it to global hash table */
-struct mdt_file_data *mdt_mfd_new(void)
+struct mdt_file_data *mdt_mfd_new(const struct mdt_export_data *med)
{
- struct mdt_file_data *mfd;
- ENTRY;
+ struct mdt_file_data *mfd;
+ ENTRY;
- OBD_ALLOC_PTR(mfd);
- if (mfd != NULL) {
- CFS_INIT_LIST_HEAD(&mfd->mfd_handle.h_link);
- CFS_INIT_LIST_HEAD(&mfd->mfd_list);
+ OBD_ALLOC_PTR(mfd);
+ if (mfd != NULL) {
+ INIT_LIST_HEAD(&mfd->mfd_handle.h_link);
+ mfd->mfd_handle.h_owner = med;
+ INIT_LIST_HEAD(&mfd->mfd_list);
class_handle_hash(&mfd->mfd_handle, &mfd_handle_ops);
- }
- RETURN(mfd);
+ }
+
+ RETURN(mfd);
}
/*
* Find the mfd pointed to by handle in global hash table.
* In case of replay the handle is obsoleted
- * but mfd can be found in mfd list by that handle
+ * but mfd can be found in mfd list by that handle.
+ * Callers need to be holding med_open_lock.
*/
-struct mdt_file_data *mdt_handle2mfd(struct mdt_thread_info *info,
- const struct lustre_handle *handle)
+struct mdt_file_data *mdt_handle2mfd(struct mdt_export_data *med,
+ const struct lustre_handle *handle,
+ bool is_replay_or_resent)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_file_data *mfd;
- ENTRY;
+ struct mdt_file_data *mfd;
+ ENTRY;
- LASSERT(handle != NULL);
- mfd = class_handle2object(handle->cookie);
- /* during dw/setattr replay the mfd can be found by old handle */
- if (mfd == NULL && req_is_replay(req)) {
- struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
- cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
- if (mfd->mfd_old_handle.cookie == handle->cookie)
- RETURN (mfd);
- }
- mfd = NULL;
- }
- RETURN (mfd);
+ LASSERT(handle != NULL);
+ mfd = class_handle2object(handle->cookie, med);
+ /* during dw/setattr replay the mfd can be found by old handle */
+ if (mfd == NULL && is_replay_or_resent) {
+ list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
+ if (mfd->mfd_old_handle.cookie == handle->cookie)
+ RETURN(mfd);
+ }
+ mfd = NULL;
+ }
+
+ RETURN(mfd);
}
/* free mfd */
void mdt_mfd_free(struct mdt_file_data *mfd)
{
- LASSERT(cfs_list_empty(&mfd->mfd_list));
- OBD_FREE_RCU(mfd, sizeof *mfd, &mfd->mfd_handle);
+ LASSERT(list_empty(&mfd->mfd_list));
+ OBD_FREE_RCU(mfd, sizeof *mfd, &mfd->mfd_handle);
}
static int mdt_create_data(struct mdt_thread_info *info,
struct mdt_object *p, struct mdt_object *o)
{
- struct md_op_spec *spec = &info->mti_spec;
- struct md_attr *ma = &info->mti_attr;
- int rc = 0;
- ENTRY;
+ struct md_op_spec *spec = &info->mti_spec;
+ struct md_attr *ma = &info->mti_attr;
+ int rc = 0;
+ ENTRY;
- if (!md_should_create(spec->sp_cr_flags))
- RETURN(0);
+ if (!md_should_create(spec->sp_cr_flags))
+ RETURN(0);
- ma->ma_need = MA_INODE | MA_LOV;
- ma->ma_valid = 0;
+ ma->ma_need = MA_INODE | MA_LOV;
+ ma->ma_valid = 0;
mutex_lock(&o->mot_lov_mutex);
- if (!(o->mot_flags & MOF_LOV_CREATED)) {
- rc = mdo_create_data(info->mti_env,
- p ? mdt_object_child(p) : NULL,
- mdt_object_child(o), spec, ma);
+ if (!o->mot_lov_created) {
+ rc = mdo_create_data(info->mti_env,
+ p ? mdt_object_child(p) : NULL,
+ mdt_object_child(o), spec, ma);
if (rc == 0)
rc = mdt_attr_get_complex(info, o, ma);
- if (rc == 0 && ma->ma_valid & MA_LOV)
- o->mot_flags |= MOF_LOV_CREATED;
- }
- mutex_unlock(&o->mot_lov_mutex);
- RETURN(rc);
-}
-
-static int mdt_ioepoch_opened(struct mdt_object *mo)
-{
- return mo->mot_ioepoch_count;
-}
-
-int mdt_object_is_som_enabled(struct mdt_object *mo)
-{
- return !mo->mot_ioepoch;
-}
-
-/**
- * Re-enable Size-on-MDS.
- * Call under ->mot_ioepoch_mutex.
- */
-static void mdt_object_som_enable(struct mdt_object *mo, __u64 ioepoch)
-{
- if (ioepoch == mo->mot_ioepoch) {
- LASSERT(!mdt_ioepoch_opened(mo));
- mo->mot_ioepoch = 0;
- mo->mot_flags = 0;
- }
-}
-
-/**
- * Open the IOEpoch. It is allowed if @writecount is not negative.
- * The epoch and writecount handling is performed under the mot_ioepoch_mutex.
- */
-int mdt_ioepoch_open(struct mdt_thread_info *info, struct mdt_object *o,
- int created)
-{
- struct mdt_device *mdt = info->mti_mdt;
- int cancel = 0;
- int rc = 0;
- ENTRY;
-
- if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
- !S_ISREG(lu_object_attr(&o->mot_obj.mo_lu)))
- RETURN(0);
-
- mutex_lock(&o->mot_ioepoch_mutex);
- if (mdt_ioepoch_opened(o)) {
- /* Epoch continues even if there is no writers yet. */
- CDEBUG(D_INODE, "continue epoch "LPU64" for "DFID"\n",
- o->mot_ioepoch, PFID(mdt_object_fid(o)));
- } else {
- /* XXX: ->mdt_ioepoch is not initialized at the mount */
- spin_lock(&mdt->mdt_ioepoch_lock);
- if (mdt->mdt_ioepoch < info->mti_replayepoch)
- mdt->mdt_ioepoch = info->mti_replayepoch;
-
- if (info->mti_replayepoch)
- o->mot_ioepoch = info->mti_replayepoch;
- else if (++mdt->mdt_ioepoch == IOEPOCH_INVAL)
- o->mot_ioepoch = ++mdt->mdt_ioepoch;
- else
- o->mot_ioepoch = mdt->mdt_ioepoch;
-
- spin_unlock(&mdt->mdt_ioepoch_lock);
-
- CDEBUG(D_INODE, "starting epoch "LPU64" for "DFID"\n",
- o->mot_ioepoch, PFID(mdt_object_fid(o)));
- if (created)
- o->mot_flags |= MOF_SOM_CREATED;
- cancel = 1;
- }
- o->mot_ioepoch_count++;
- mutex_unlock(&o->mot_ioepoch_mutex);
-
- /* Cancel Size-on-MDS attributes cached on clients for the open case.
- * In the truncate case, see mdt_reint_setattr(). */
- if (cancel && (info->mti_rr.rr_fid1 != NULL)) {
- struct mdt_lock_handle *lh = &info->mti_lh[MDT_LH_CHILD];
- mdt_lock_reg_init(lh, LCK_EX);
- rc = mdt_object_lock(info, o, lh, MDS_INODELOCK_UPDATE,
- MDT_LOCAL_LOCK);
- if (rc == 0)
- mdt_object_unlock(info, o, lh, 1);
- }
- RETURN(rc);
-}
-
-/**
- * Update SOM on-disk attributes.
- * If enabling, write update inodes and lustre-ea with the proper IOEpoch,
- * mountid and attributes. If disabling, clean SOM xattr.
- * Call under ->mot_ioepoch_mutex.
- */
-static int mdt_som_attr_set(struct mdt_thread_info *info,
- struct mdt_object *obj, __u64 ioepoch, bool enable)
-{
- struct md_object *next = mdt_object_child(obj);
- int rc;
- ENTRY;
-
- CDEBUG(D_INODE, "Size-on-MDS attribute %s for epoch "LPU64
- " on "DFID".\n", enable ? "update" : "disabling",
- ioepoch, PFID(mdt_object_fid(obj)));
-
- if (enable) {
- struct lu_buf *buf = &info->mti_buf;
- struct som_attrs *attrs;
- struct md_attr *ma = &info->mti_attr;
- struct lu_attr *la = &ma->ma_attr;
- struct obd_device *obd = info->mti_mdt->mdt_lut.lut_obd;
-
- attrs = (struct som_attrs *)info->mti_xattr_buf;
- CLASSERT(sizeof(info->mti_xattr_buf) >= sizeof(*attrs));
-
- /* pack SOM attributes */
- memset(attrs, 0, sizeof(*attrs));
- attrs->som_ioepoch = ioepoch;
- attrs->som_mountid = obd->u.obt.obt_mount_count;
- if ((la->la_valid & LA_SIZE) != 0)
- attrs->som_size = la->la_size;
- if ((la->la_valid & LA_BLOCKS) != 0)
- attrs->som_blocks = la->la_blocks;
- lustre_som_swab(attrs);
-
- /* update SOM attributes */
- buf->lb_buf = attrs;
- buf->lb_len = sizeof(*attrs);
- rc = mo_xattr_set(info->mti_env, next, buf, XATTR_NAME_SOM, 0);
- } else {
- /* delete SOM attributes */
- rc = mo_xattr_del(info->mti_env, next, XATTR_NAME_SOM);
+ if (rc == 0 && ma->ma_valid & MA_LOV)
+ o->mot_lov_created = 1;
}
- RETURN(rc);
-}
-
-/** Perform the eviction specific actions on ioepoch close. */
-static inline int mdt_ioepoch_close_on_eviction(struct mdt_thread_info *info,
- struct mdt_object *o)
-{
- int rc = 0;
-
- mutex_lock(&o->mot_ioepoch_mutex);
- CDEBUG(D_INODE, "Eviction. Closing IOepoch "LPU64" on "DFID". "
- "Count %d\n", o->mot_ioepoch, PFID(mdt_object_fid(o)),
- o->mot_ioepoch_count);
- o->mot_ioepoch_count--;
-
- /* If eviction occured set MOF_SOM_RECOV,
- * if no other epoch holders, disable SOM on disk. */
- o->mot_flags |= MOF_SOM_CHANGE | MOF_SOM_RECOV;
- if (!mdt_ioepoch_opened(o)) {
- rc = mdt_som_attr_set(info, o, o->mot_ioepoch, MDT_SOM_DISABLE);
- mdt_object_som_enable(o, o->mot_ioepoch);
- }
- mutex_unlock(&o->mot_ioepoch_mutex);
- RETURN(rc);
-}
-
-/**
- * Perform the replay specific actions on ioepoch close.
- * Skip SOM attribute update if obtained and just forget about the inode state
- * for the last ioepoch holder. The SOM cache is invalidated on MDS failure.
- */
-static inline int mdt_ioepoch_close_on_replay(struct mdt_thread_info *info,
- struct mdt_object *o)
-{
- int rc = MDT_IOEPOCH_CLOSED;
- ENTRY;
-
- mutex_lock(&o->mot_ioepoch_mutex);
- CDEBUG(D_INODE, "Replay. Closing epoch "LPU64" on "DFID". Count %d\n",
- o->mot_ioepoch, PFID(mdt_object_fid(o)), o->mot_ioepoch_count);
- o->mot_ioepoch_count--;
-
- /* Get an info from the replayed request if client is supposed
- * to send an Attibute Update, reconstruct @rc if so */
- if (info->mti_ioepoch->flags & MF_SOM_AU)
- rc = MDT_IOEPOCH_GETATTR;
-
- if (!mdt_ioepoch_opened(o))
- mdt_object_som_enable(o, info->mti_ioepoch->ioepoch);
- mutex_unlock(&o->mot_ioepoch_mutex);
-
- RETURN(rc);
-}
-
-/**
- * Regular file IOepoch close.
- * Closes the ioepoch, checks the object state, apply obtained attributes and
- * re-enable SOM on the object, if possible. Also checks if the recovery is
- * needed and packs OBD_MD_FLGETATTRLOCK flag into the reply to force the client
- * to obtain SOM attributes under the server-side OST locks.
- *
- * Return value:
- * MDT_IOEPOCH_CLOSED if ioepoch is closed.
- * MDT_IOEPOCH_GETATTR if ioepoch is closed but another SOM update is needed.
- */
-static inline int mdt_ioepoch_close_reg(struct mdt_thread_info *info,
- struct mdt_object *o)
-{
- struct md_attr *tmp_ma;
- struct lu_attr *la;
- int achange, opened;
- int recovery = 0;
- int rc = 0, ret = MDT_IOEPOCH_CLOSED;
- ENTRY;
-
- la = &info->mti_attr.ma_attr;
- achange = (info->mti_ioepoch->flags & MF_SOM_CHANGE);
-
- mutex_lock(&o->mot_ioepoch_mutex);
- o->mot_ioepoch_count--;
-
- tmp_ma = &info->mti_u.som.attr;
- tmp_ma->ma_lmm = info->mti_attr.ma_lmm;
- tmp_ma->ma_lmm_size = info->mti_attr.ma_lmm_size;
- tmp_ma->ma_som = &info->mti_u.som.data;
- tmp_ma->ma_need = MA_INODE | MA_LOV | MA_SOM;
- tmp_ma->ma_valid = 0;
- rc = mdt_attr_get_complex(info, o, tmp_ma);
- if (rc)
- GOTO(error_up, rc);
-
- /* Check the on-disk SOM state. */
- if (o->mot_flags & MOF_SOM_RECOV)
- recovery = 1;
- else if (!(o->mot_flags & MOF_SOM_CREATED) &&
- !(tmp_ma->ma_valid & MA_SOM))
- recovery = 1;
-
- CDEBUG(D_INODE, "Closing epoch "LPU64" on "DFID". Count %d\n",
- o->mot_ioepoch, PFID(mdt_object_fid(o)), o->mot_ioepoch_count);
-
- opened = mdt_ioepoch_opened(o);
- /**
- * If IOEpoch is not opened, check if a Size-on-MDS update is needed.
- * Skip the check for file with no LOV or for unlink files.
- */
- if (!opened && tmp_ma->ma_valid & MA_LOV &&
- !(tmp_ma->ma_valid & MA_INODE && tmp_ma->ma_attr.la_nlink == 0)) {
- if (recovery)
- /* If some previous writer was evicted, re-ask the
- * client for attributes. Even if attributes are
- * provided, we cannot believe in them.
- * Another use case is that there is no SOM cache on
- * disk -- first access with SOM or there was an MDS
- * failure. */
- ret = MDT_IOEPOCH_GETATTR;
- else if (o->mot_flags & MOF_SOM_CHANGE)
- /* Some previous writer changed the attribute.
- * Do not believe to the current Size-on-MDS
- * update, re-ask client. */
- ret = MDT_IOEPOCH_GETATTR;
- else if (!(la->la_valid & LA_SIZE) && achange)
- /* Attributes were changed by the last writer
- * only but no Size-on-MDS update is received.*/
- ret = MDT_IOEPOCH_GETATTR;
- }
-
- if (achange || ret == MDT_IOEPOCH_GETATTR)
- o->mot_flags |= MOF_SOM_CHANGE;
-
- /* If epoch ends and relable SOM attributes are obtained, update them.
- * Create SOM ea for new files even if there is no attributes obtained
- * (0-length file). */
- if (ret == MDT_IOEPOCH_CLOSED && !opened) {
- if (achange || o->mot_flags & MOF_SOM_CREATED) {
- LASSERT(achange || !(la->la_valid & LA_SIZE));
- rc = mdt_som_attr_set(info, o, o->mot_ioepoch,
- MDT_SOM_ENABLE);
- /* Avoid the following setattrs of these attributes,
- * e.g. for atime update. */
- info->mti_attr.ma_valid = 0;
- }
- mdt_object_som_enable(o, o->mot_ioepoch);
- }
-
- mutex_unlock(&o->mot_ioepoch_mutex);
- /* If recovery is needed, tell the client to perform GETATTR under
- * the lock. */
- if (ret == MDT_IOEPOCH_GETATTR && recovery) {
- struct mdt_body *rep;
- rep = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
- rep->valid |= OBD_MD_FLGETATTRLOCK;
- }
-
- RETURN(rc ? : ret);
-
-error_up:
- mutex_unlock(&o->mot_ioepoch_mutex);
- return rc;
-}
-
-/**
- * Close IOEpoch (opened file or MDS_FMODE_EPOCH state). It happens if:
- * - a client closes the IOEpoch;
- * - a client eviction occured.
- * Return values:
- * MDT_IOEPOCH_OPENED if the client does not close IOEpoch.
- * MDT_IOEPOCH_CLOSED if the client closes IOEpoch.
- * MDT_IOEPOCH_GETATTR if the client closes IOEpoch but another SOM attribute
- * update is needed.
- */
-static int mdt_ioepoch_close(struct mdt_thread_info *info, struct mdt_object *o)
-{
- struct ptlrpc_request *req = mdt_info_req(info);
- ENTRY;
-
- if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
- !S_ISREG(lu_object_attr(&o->mot_obj.mo_lu)))
- RETURN(0);
-
- LASSERT(o->mot_ioepoch_count);
- LASSERT(info->mti_ioepoch == NULL ||
- info->mti_ioepoch->ioepoch == o->mot_ioepoch);
-
- /* IOEpoch is closed only if client tells about it or eviction occures.
- * In the replay case, always close the epoch. */
- if (req == NULL)
- RETURN(mdt_ioepoch_close_on_eviction(info, o));
- if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY)
- RETURN(mdt_ioepoch_close_on_replay(info, o));
- if (info->mti_ioepoch->flags & MF_EPOCH_CLOSE)
- RETURN(mdt_ioepoch_close_reg(info, o));
- /* IO epoch is not closed. */
- RETURN(MDT_IOEPOCH_OPENED);
-}
-
-/**
- * Close MDS_FMODE_SOM state, when IOEpoch is already closed and we are waiting
- * for attribute update. It happens if:
- * - SOM Attribute Update is obtained;
- * - the client failed to obtain it and informs MDS about it;
- * - a client eviction occured.
- * Apply obtained attributes for the 1st case, wipe out the on-disk SOM
- * cache otherwise.
- */
-int mdt_som_au_close(struct mdt_thread_info *info, struct mdt_object *o)
-{
- struct ptlrpc_request *req = mdt_info_req(info);
- __u64 ioepoch = 0;
- int act = MDT_SOM_ENABLE;
- int rc = 0;
- ENTRY;
-
- LASSERT(!req || info->mti_ioepoch);
- if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
- !S_ISREG(lu_object_attr(&o->mot_obj.mo_lu)))
- RETURN(0);
-
- /* No size whereas MF_SOM_CHANGE is set means client failed to
- * obtain ost attributes, drop the SOM cache on disk if so. */
- if (!req ||
- (info->mti_ioepoch &&
- info->mti_ioepoch->flags & MF_SOM_CHANGE &&
- !(info->mti_attr.ma_attr.la_valid & LA_SIZE)))
- act = MDT_SOM_DISABLE;
-
- mutex_lock(&o->mot_ioepoch_mutex);
- /* Mark the object it is the recovery state if we failed to obtain
- * SOM attributes. */
- if (act == MDT_SOM_DISABLE)
- o->mot_flags |= MOF_SOM_RECOV;
-
- if (!mdt_ioepoch_opened(o)) {
- ioepoch = info->mti_ioepoch ?
- info->mti_ioepoch->ioepoch : o->mot_ioepoch;
-
- if (!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY))
- rc = mdt_som_attr_set(info, o, ioepoch, act);
- mdt_object_som_enable(o, ioepoch);
- }
- mutex_unlock(&o->mot_ioepoch_mutex);
- RETURN(rc);
+ mutex_unlock(&o->mot_lov_mutex);
+ RETURN(rc);
}
int mdt_write_read(struct mdt_object *o)
{
- int rc = 0;
- ENTRY;
- mutex_lock(&o->mot_ioepoch_mutex);
- rc = o->mot_writecount;
- mutex_unlock(&o->mot_ioepoch_mutex);
- RETURN(rc);
+ int rc = 0;
+ ENTRY;
+ spin_lock(&o->mot_write_lock);
+ rc = o->mot_write_count;
+ spin_unlock(&o->mot_write_lock);
+ RETURN(rc);
}
int mdt_write_get(struct mdt_object *o)
{
- int rc = 0;
- ENTRY;
- mutex_lock(&o->mot_ioepoch_mutex);
- if (o->mot_writecount < 0)
- rc = -ETXTBSY;
- else
- o->mot_writecount++;
- mutex_unlock(&o->mot_ioepoch_mutex);
- RETURN(rc);
+ int rc = 0;
+ ENTRY;
+ spin_lock(&o->mot_write_lock);
+ if (o->mot_write_count < 0)
+ rc = -ETXTBSY;
+ else
+ o->mot_write_count++;
+ spin_unlock(&o->mot_write_lock);
+
+ RETURN(rc);
}
void mdt_write_put(struct mdt_object *o)
{
- ENTRY;
- mutex_lock(&o->mot_ioepoch_mutex);
- o->mot_writecount--;
- mutex_unlock(&o->mot_ioepoch_mutex);
- EXIT;
+ ENTRY;
+ spin_lock(&o->mot_write_lock);
+ o->mot_write_count--;
+ spin_unlock(&o->mot_write_lock);
+ EXIT;
}
static int mdt_write_deny(struct mdt_object *o)
{
- int rc = 0;
- ENTRY;
- mutex_lock(&o->mot_ioepoch_mutex);
- if (o->mot_writecount > 0)
- rc = -ETXTBSY;
- else
- o->mot_writecount--;
- mutex_unlock(&o->mot_ioepoch_mutex);
- RETURN(rc);
+ int rc = 0;
+ ENTRY;
+ spin_lock(&o->mot_write_lock);
+ if (o->mot_write_count > 0)
+ rc = -ETXTBSY;
+ else
+ o->mot_write_count--;
+ spin_unlock(&o->mot_write_lock);
+ RETURN(rc);
}
static void mdt_write_allow(struct mdt_object *o)
{
- ENTRY;
- mutex_lock(&o->mot_ioepoch_mutex);
- o->mot_writecount++;
- mutex_unlock(&o->mot_ioepoch_mutex);
- EXIT;
+ ENTRY;
+ spin_lock(&o->mot_write_lock);
+ o->mot_write_count++;
+ spin_unlock(&o->mot_write_lock);
+ EXIT;
}
/* there can be no real transaction so prepare the fake one */
if (lustre_msg_get_transno(req->rq_repmsg) != 0)
RETURN_EXIT;
+ if (tgt_is_multimodrpcs_client(req->rq_export)) {
+ struct thandle *th;
+
+ /* generate an empty transaction to get a transno
+ * and reply data */
+ th = dt_trans_create(info->mti_env, mdt->mdt_bottom);
+ if (!IS_ERR(th)) {
+ rc = dt_trans_start(info->mti_env, mdt->mdt_bottom, th);
+ dt_trans_stop(info->mti_env, mdt->mdt_bottom, th);
+ }
+ RETURN_EXIT;
+ }
+
spin_lock(&mdt->mdt_lut.lut_translock);
if (rc != 0) {
if (info->mti_transno != 0) {
struct obd_export *exp = req->rq_export;
- CERROR("%s: replay trans "LPU64" NID %s: rc = %d\n",
- mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name,
- info->mti_transno,
- libcfs_nid2str(exp->exp_connection->c_peer.nid),
- rc);
+ CERROR("%s: replay trans %llu NID %s: rc = %d\n",
+ mdt_obd_name(mdt), info->mti_transno,
+ libcfs_nid2str(exp->exp_connection->c_peer.nid),
+ rc);
+ spin_unlock(&mdt->mdt_lut.lut_translock);
RETURN_EXIT;
}
} else if (info->mti_transno == 0) {
}
spin_unlock(&mdt->mdt_lut.lut_translock);
- CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n",
- info->mti_transno,
- req->rq_export->exp_obd->obd_last_committed);
+ CDEBUG(D_INODE, "transno = %llu, last_committed = %llu\n",
+ info->mti_transno,
+ req->rq_export->exp_obd->obd_last_committed);
- req->rq_transno = info->mti_transno;
- lustre_msg_set_transno(req->rq_repmsg, info->mti_transno);
+ req->rq_transno = info->mti_transno;
+ lustre_msg_set_transno(req->rq_repmsg, info->mti_transno);
- /* update lcd in memory only for resent cases */
- ted = &req->rq_export->exp_target_data;
- LASSERT(ted);
+ /* update lcd in memory only for resent cases */
+ ted = &req->rq_export->exp_target_data;
+ LASSERT(ted);
mutex_lock(&ted->ted_lcd_lock);
- lcd = ted->ted_lcd;
+ lcd = ted->ted_lcd;
if (info->mti_transno < lcd->lcd_last_transno &&
info->mti_transno != 0) {
/* This should happen during replay. Do not update
* otherwise the following resend(after replay) can not
* be checked correctly by xid */
mutex_unlock(&ted->ted_lcd_lock);
- CDEBUG(D_HA, "%s: transno = "LPU64" < last_transno = "LPU64"\n",
- mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name,
- info->mti_transno, lcd->lcd_last_transno);
+ CDEBUG(D_HA, "%s: transno = %llu < last_transno = %llu\n",
+ mdt_obd_name(mdt), info->mti_transno,
+ lcd->lcd_last_transno);
RETURN_EXIT;
}
- if (lustre_msg_get_opc(req->rq_reqmsg) == MDS_CLOSE ||
- lustre_msg_get_opc(req->rq_reqmsg) == MDS_DONE_WRITING) {
+ if (lustre_msg_get_opc(req->rq_reqmsg) == MDS_CLOSE) {
if (info->mti_transno != 0)
lcd->lcd_last_close_transno = info->mti_transno;
lcd->lcd_last_close_xid = req->rq_xid;
EXIT;
}
-void mdt_mfd_set_mode(struct mdt_file_data *mfd, int mode)
+void mdt_mfd_set_mode(struct mdt_file_data *mfd, __u64 mode)
{
- LASSERT(mfd != NULL);
+ LASSERT(mfd != NULL);
- CDEBUG(D_HA, "Change mfd %p mode 0x%x->0x%x\n",
- mfd, (unsigned int)mfd->mfd_mode, (unsigned int)mode);
+ CDEBUG(D_HA, DFID " Change mfd mode %#llo -> %#llo.\n",
+ PFID(mdt_object_fid(mfd->mfd_object)), mfd->mfd_mode, mode);
- mfd->mfd_mode = mode;
+ mfd->mfd_mode = mode;
+}
+
+/**
+ * prep ma_lmm/ma_lmv for md_attr from reply
+ */
+static void mdt_prep_ma_buf_from_rep(struct mdt_thread_info *info,
+ struct mdt_object *obj,
+ struct md_attr *ma)
+{
+ LASSERT(ma->ma_lmv == NULL && ma->ma_lmm == NULL);
+ if (S_ISDIR(obj->mot_header.loh_attr)) {
+ ma->ma_lmv = req_capsule_server_get(info->mti_pill,
+ &RMF_MDT_MD);
+ ma->ma_lmv_size = req_capsule_get_size(info->mti_pill,
+ &RMF_MDT_MD,
+ RCL_SERVER);
+ if (ma->ma_lmv_size > 0)
+ ma->ma_need |= MA_LMV;
+ } else {
+ 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);
+ if (ma->ma_lmm_size > 0)
+ ma->ma_need |= MA_LOV;
+ }
}
static int mdt_mfd_open(struct mdt_thread_info *info, struct mdt_object *p,
- struct mdt_object *o, __u64 flags, int created)
+ struct mdt_object *o, __u64 flags, int created,
+ struct ldlm_reply *rep)
{
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
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) && !(flags & MDS_OPEN_RELEASE)) {
/*
* 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
rc = mdt_create_data(info, p, o);
if (rc)
RETURN(rc);
+
+ if (exp_connect_flags(req->rq_export) & OBD_CONNECT_DISP_STRIPE)
+ mdt_set_disposition(info, rep, DISP_OPEN_STRIPE);
}
- CDEBUG(D_INODE, "after open, ma_valid bit = "LPX64" lmm_size = %d\n",
- ma->ma_valid, ma->ma_lmm_size);
+ CDEBUG(D_INODE, "after open, ma_valid bit = %#llx lmm_size = %d\n",
+ ma->ma_valid, ma->ma_lmm_size);
if (ma->ma_valid & MA_LOV) {
LASSERT(ma->ma_lmm_size != 0);
- repbody->eadatasize = ma->ma_lmm_size;
- if (isdir)
- repbody->valid |= OBD_MD_FLDIREA;
- else
- repbody->valid |= OBD_MD_FLEASIZE;
- }
-
- if (flags & FMODE_WRITE) {
- rc = mdt_write_get(o);
- if (rc == 0) {
- mdt_ioepoch_open(info, o, created);
- repbody->ioepoch = o->mot_ioepoch;
- }
- } else if (flags & MDS_FMODE_EXEC) {
- /* if file is released, we can't deny write because we must
- * restore (write) it to access it.*/
- if ((ma->ma_valid & MA_HSM) &&
- (ma->ma_hsm.mh_flags & HS_RELEASED))
- rc = 0;
+ repbody->mbo_eadatasize = ma->ma_lmm_size;
+ if (isdir)
+ repbody->mbo_valid |= OBD_MD_FLDIREA;
else
- rc = mdt_write_deny(o);
- }
+ repbody->mbo_valid |= OBD_MD_FLEASIZE;
+ }
+
+ if (ma->ma_valid & MA_LMV) {
+ LASSERT(ma->ma_lmv_size != 0);
+ repbody->mbo_eadatasize = ma->ma_lmv_size;
+ LASSERT(isdir);
+ repbody->mbo_valid |= OBD_MD_FLDIREA | OBD_MD_MEA;
+ }
+
+ if (flags & FMODE_WRITE)
+ rc = mdt_write_get(o);
+ else if (flags & MDS_FMODE_EXEC)
+ rc = mdt_write_deny(o);
+
if (rc)
RETURN(rc);
rc = mo_open(info->mti_env, mdt_object_child(o),
created ? flags | MDS_OPEN_CREATED : flags);
- if (rc)
- GOTO(err_out, rc);
+ if (rc != 0) {
+ /* If we allow the client to chgrp (CFS_SETGRP_PERM), but the
+ * client does not know which suppgid should be sent to the MDS,
+ * or some other(s) changed the target file's GID after this RPC
+ * sent to the MDS with the suppgid as the original GID, then we
+ * give the client another chance to send the right suppgid. */
+ if (rc == -EACCES &&
+ allow_client_chgrp(info, lu_ucred(info->mti_env)))
+ mdt_set_disposition(info, rep, DISP_OPEN_DENY);
+
+ GOTO(err_out, rc);
+ }
- mfd = mdt_mfd_new();
- if (mfd != NULL) {
- /*
- * Keep a reference on this object for this open, and is
- * released by mdt_mfd_close().
- */
- mdt_object_get(info->mti_env, o);
+ mfd = mdt_mfd_new(med);
+ if (mfd == NULL)
+ GOTO(err_out, rc = -ENOMEM);
- /*
- * @flags is always not zero. At least it should be FMODE_READ,
- * FMODE_WRITE or MDS_FMODE_EXEC.
- */
- LASSERT(flags != 0);
-
- /* Open handling. */
- mdt_mfd_set_mode(mfd, flags);
-
- mfd->mfd_object = o;
- mfd->mfd_xid = req->rq_xid;
-
- /* replay handle */
- if (req_is_replay(req)) {
- struct mdt_file_data *old_mfd;
- /* 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
- * mfd here, we should remove them */
- 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 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);
- cfs_list_del_init(&old_mfd->mfd_list);
- spin_unlock(&med->med_open_lock);
- /* no attr update for that close */
- la->la_valid = 0;
- ma->ma_valid |= MA_FLAGS;
- ma->ma_attr_flags |= MDS_RECOV_OPEN;
- mdt_mfd_close(info, old_mfd);
- ma->ma_attr_flags &= ~MDS_RECOV_OPEN;
- ma->ma_valid &= ~MA_FLAGS;
- }
- 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;
- }
- repbody->handle.cookie = mfd->mfd_handle.h_cookie;
+ /*
+ * Keep a reference on this object for this open, and is
+ * released by mdt_mfd_close().
+ */
+ mdt_object_get(info->mti_env, o);
+ mfd->mfd_object = o;
+ mfd->mfd_xid = req->rq_xid;
- if (req->rq_export->exp_disconnected) {
- spin_lock(&med->med_open_lock);
- class_handle_unhash(&mfd->mfd_handle);
- cfs_list_del_init(&mfd->mfd_list);
+ /*
+ * @flags is always not zero. At least it should be FMODE_READ,
+ * FMODE_WRITE or MDS_FMODE_EXEC.
+ */
+ LASSERT(flags != 0);
+
+ /* Open handling. */
+ mdt_mfd_set_mode(mfd, flags);
+
+ atomic_inc(&o->mot_open_count);
+ if (flags & MDS_OPEN_LEASE)
+ atomic_inc(&o->mot_lease_count);
+
+ /* replay handle */
+ if (req_is_replay(req)) {
+ struct mdt_file_data *old_mfd;
+ /* 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
+ * mfd here, we should remove them */
+ LASSERT(info->mti_rr.rr_handle != NULL);
+ spin_lock(&med->med_open_lock);
+ old_mfd = mdt_handle2mfd(med, info->mti_rr.rr_handle, true);
+ if (old_mfd != NULL) {
+ CDEBUG(D_HA, "delete orphan mfd = %p, fid = "DFID", "
+ "cookie = %#llx\n", mfd,
+ PFID(mdt_object_fid(mfd->mfd_object)),
+ info->mti_rr.rr_handle->cookie);
+ class_handle_unhash(&old_mfd->mfd_handle);
+ list_del_init(&old_mfd->mfd_list);
spin_unlock(&med->med_open_lock);
- mdt_mfd_close(info, mfd);
+ /* no attr update for that close */
+ la->la_valid = 0;
+ ma->ma_valid |= MA_FLAGS;
+ ma->ma_attr_flags |= MDS_RECOV_OPEN;
+ mdt_mfd_close(info, old_mfd);
+ ma->ma_attr_flags &= ~MDS_RECOV_OPEN;
+ ma->ma_valid &= ~MA_FLAGS;
} else {
- spin_lock(&med->med_open_lock);
- cfs_list_add(&mfd->mfd_list, &med->med_open_head);
spin_unlock(&med->med_open_lock);
- }
+ CDEBUG(D_HA, "orphan mfd not found, fid = "DFID", "
+ "cookie = %#llx\n",
+ PFID(mdt_object_fid(mfd->mfd_object)),
+ info->mti_rr.rr_handle->cookie);
+ }
- mdt_empty_transno(info, rc);
- } else {
- GOTO(err_out, rc = -ENOMEM);
- }
+ CDEBUG(D_HA, "Store old cookie %#llx in new mfd\n",
+ info->mti_rr.rr_handle->cookie);
+
+ mfd->mfd_old_handle.cookie = info->mti_rr.rr_handle->cookie;
+ }
+
+ repbody->mbo_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, rc);
RETURN(rc);
err_out:
- if (flags & FMODE_WRITE)
- /* XXX We also need to close io epoch here.
- * See LU-1220 - green */
- mdt_write_put(o);
- else if (flags & FMODE_EXEC)
- mdt_write_allow(o);
- return rc;
+ if (flags & FMODE_WRITE)
+ mdt_write_put(o);
+ else if (flags & MDS_FMODE_EXEC)
+ mdt_write_allow(o);
+
+ return rc;
}
-int mdt_finish_open(struct mdt_thread_info *info,
- struct mdt_object *p, struct mdt_object *o,
- __u64 flags, int created, struct ldlm_reply *rep)
+static int mdt_finish_open(struct mdt_thread_info *info,
+ struct mdt_object *p, struct mdt_object *o,
+ __u64 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 md_attr *ma = &info->mti_attr;
- struct lu_attr *la = &ma->ma_attr;
- struct mdt_file_data *mfd;
- struct mdt_body *repbody;
- int rc = 0;
- int isreg, isdir, islnk;
- cfs_list_t *t;
- ENTRY;
+ 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 md_attr *ma = &info->mti_attr;
+ struct lu_attr *la = &ma->ma_attr;
+ struct mdt_file_data *mfd;
+ struct mdt_body *repbody;
+ int rc = 0;
+ int isreg, isdir, islnk;
+ struct list_head *t;
+ ENTRY;
LASSERT(ma->ma_valid & MA_INODE);
/* LU-2275, simulate broken behaviour (esp. prevalent in
* pre-2.4 servers where a very strange reply is sent on error
- * that looks like it was actually almost succesful and a failure at the
- * same time */
+ * that looks like it was actually almost successful and a
+ * failure at the same time.) */
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_NEGATIVE_POSITIVE)) {
- mdt_set_disposition(info, rep, DISP_OPEN_LOCK | \
- DISP_OPEN_OPEN | DISP_LOOKUP_NEG | \
- DISP_LOOKUP_POS);
+ mdt_set_disposition(info, rep, DISP_OPEN_OPEN |
+ DISP_LOOKUP_NEG |
+ DISP_LOOKUP_POS);
+
+ if (flags & MDS_OPEN_LOCK)
+ mdt_set_disposition(info, rep, DISP_OPEN_LOCK);
+
RETURN(-ENOENT);
}
- if (exp_connect_rmtclient(exp)) {
- void *buf = req_capsule_server_get(info->mti_pill, &RMF_ACL);
-
- rc = mdt_pack_remote_perm(info, o, buf);
- if (rc) {
- repbody->valid &= ~OBD_MD_FLRMTPERM;
- repbody->aclsize = 0;
- } else {
- repbody->valid |= OBD_MD_FLRMTPERM;
- repbody->aclsize = sizeof(struct mdt_remote_perm);
- }
- }
#ifdef CONFIG_FS_POSIX_ACL
- else if (exp_connect_flags(exp) & 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;
-
- buf->lb_buf = req_capsule_server_get(info->mti_pill, &RMF_ACL);
- buf->lb_len = req_capsule_get_size(info->mti_pill, &RMF_ACL,
- RCL_SERVER);
- if (buf->lb_len > 0) {
- rc = mo_xattr_get(env, next, buf,
- XATTR_NAME_ACL_ACCESS);
- if (rc < 0) {
- if (rc == -ENODATA) {
- repbody->aclsize = 0;
- repbody->valid |= OBD_MD_FLACL;
- rc = 0;
- } else if (rc == -EOPNOTSUPP) {
- rc = 0;
- } else {
- CERROR("got acl size: %d\n", rc);
- }
- } else {
- repbody->aclsize = rc;
- repbody->valid |= OBD_MD_FLACL;
- rc = 0;
- }
- }
- }
+ if (exp_connect_flags(exp) & OBD_CONNECT_ACL) {
+ struct lu_nodemap *nodemap = nodemap_get_from_exp(exp);
+ if (IS_ERR(nodemap))
+ RETURN(PTR_ERR(nodemap));
+
+ rc = mdt_pack_acl2body(info, repbody, o, nodemap);
+ nodemap_putref(nodemap);
+ if (rc)
+ RETURN(rc);
+ }
#endif
- if (info->mti_mdt->mdt_opts.mo_mds_capa &&
- exp_connect_flags(exp) & 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;
- rc = mo_capa_get(info->mti_env, mdt_object_child(o), capa, 0);
- if (rc)
- RETURN(rc);
- repbody->valid |= OBD_MD_FLMDSCAPA;
- }
- if (info->mti_mdt->mdt_opts.mo_oss_capa &&
- exp_connect_flags(exp) & 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);
- rc = mo_capa_get(info->mti_env, mdt_object_child(o), capa, 0);
- if (rc)
- RETURN(rc);
- repbody->valid |= OBD_MD_FLOSSCAPA;
- }
-
/*
* If we are following a symlink, don't open; and do not return open
* handle for special nodes as client required.
RETURN(-EAGAIN);
}
- mfd = NULL;
- if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
+ mfd = NULL;
+ if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
spin_lock(&med->med_open_lock);
- cfs_list_for_each(t, &med->med_open_head) {
- mfd = cfs_list_entry(t, struct mdt_file_data, mfd_list);
+ list_for_each(t, &med->med_open_head) {
+ mfd = list_entry(t, struct mdt_file_data, mfd_list);
if (mfd->mfd_xid == req->rq_xid)
break;
mfd = NULL;
spin_unlock(&med->med_open_lock);
if (mfd != NULL) {
- repbody->handle.cookie = mfd->mfd_handle.h_cookie;
- /*set repbody->ea_size for resent case*/
- if (ma->ma_valid & MA_LOV) {
- LASSERT(ma->ma_lmm_size != 0);
- repbody->eadatasize = ma->ma_lmm_size;
- if (isdir)
- repbody->valid |= OBD_MD_FLDIREA;
- else
- repbody->valid |= OBD_MD_FLEASIZE;
+ repbody->mbo_handle.cookie = mfd->mfd_handle.h_cookie;
+ /* set repbody->ea_size for resent case */
+ if (ma->ma_valid & MA_LOV) {
+ LASSERT(ma->ma_lmm_size != 0);
+ repbody->mbo_eadatasize = ma->ma_lmm_size;
+ if (isdir)
+ repbody->mbo_valid |= OBD_MD_FLDIREA;
+ else
+ repbody->mbo_valid |= OBD_MD_FLEASIZE;
}
mdt_set_disposition(info, rep, DISP_OPEN_OPEN);
- RETURN(0);
- }
- }
+ RETURN(0);
+ }
+ }
- rc = mdt_mfd_open(info, p, o, flags, created);
+ rc = mdt_mfd_open(info, p, o, flags, created, rep);
if (!rc)
mdt_set_disposition(info, rep, DISP_OPEN_OPEN);
- RETURN(rc);
+ RETURN(rc);
}
-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 mdt_device *mdt = info->mti_mdt;
struct req_capsule *pill = info->mti_pill;
struct ptlrpc_request *req = mdt_info_req(info);
- struct tg_export_data *ted = &req->rq_export->exp_target_data;
- struct lsd_client_data *lcd = ted->ted_lcd;
struct md_attr *ma = &info->mti_attr;
struct mdt_reint_record *rr = &info->mti_rr;
- __u32 flags = info->mti_spec.sp_cr_flags;
+ __u64 flags = info->mti_spec.sp_cr_flags;
struct ldlm_reply *ldlm_rep;
struct mdt_object *parent;
struct mdt_object *child;
struct mdt_body *repbody;
int rc;
- ENTRY;
+ __u64 opdata;
+ ENTRY;
LASSERT(pill->rc_fmt == &RQF_LDLM_INTENT_OPEN);
ldlm_rep = req_capsule_server_get(pill, &RMF_DLM_REP);
repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
- 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_HSM;
- if (ma->ma_lmm_size > 0)
- ma->ma_need |= MA_LOV;
+ ma->ma_valid = 0;
- ma->ma_valid = 0;
-
- mdt_req_from_lcd(req, lcd);
- mdt_set_disposition(info, ldlm_rep, lcd->lcd_last_data);
+ opdata = mdt_req_from_lrd(req, info->mti_reply_data);
+ mdt_set_disposition(info, ldlm_rep, opdata);
- CDEBUG(D_INODE, "This is reconstruct open: disp="LPX64", result=%d\n",
+ CDEBUG(D_INODE, "This is reconstruct open: disp=%#llx, result=%d\n",
ldlm_rep->lock_policy_res1, req->rq_status);
if (mdt_get_disposition(ldlm_rep, DISP_OPEN_CREATE) &&
mdt_export_evict(exp);
RETURN_EXIT;
}
- child = mdt_object_find(env, mdt, rr->rr_fid2);
- 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_object_put(env, parent);
- mdt_export_evict(exp);
- RETURN_EXIT;
- }
- rc = mdt_object_exists(child);
- if (rc > 0) {
-
- mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
- rc = mdt_attr_get_complex(info, child, ma);
- if (rc == 0)
- rc = mdt_finish_open(info, parent, child,
- flags, 1, ldlm_rep);
- } else if (rc < 0) {
- /* the child object was created on remote server */
- repbody->fid1 = *rr->rr_fid2;
- repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
- rc = 0;
- } else if (rc == 0) {
- /* the child does not exist, we should do regular open */
- mdt_object_put(env, parent);
- mdt_object_put(env, child);
- GOTO(regular_open, 0);
- }
+
+ child = mdt_object_find(env, mdt, rr->rr_fid2);
+ if (IS_ERR(child)) {
+ rc = PTR_ERR(child);
+ LCONSOLE_WARN("cannot lookup child "DFID": rc = %d; "
+ "evicting client %s with export %s\n",
+ PFID(rr->rr_fid2), rc,
+ obd_uuid2str(&exp->exp_client_uuid),
+ obd_export_nid2str(exp));
+ mdt_object_put(env, parent);
+ mdt_export_evict(exp);
+ RETURN_EXIT;
+ }
+
+ if (unlikely(mdt_object_remote(child))) {
+ /* the child object was created on remote server */
+ if (!mdt_is_dne_client(exp)) {
+ /* Return -EIO for old client */
+ mdt_object_put(env, parent);
+ mdt_object_put(env, child);
+ GOTO(out, rc = -EIO);
+ }
+ repbody->mbo_fid1 = *rr->rr_fid2;
+ repbody->mbo_valid |= (OBD_MD_FLID | OBD_MD_MDS);
+ rc = 0;
+ } else {
+ if (mdt_object_exists(child)) {
+ mdt_prep_ma_buf_from_rep(info, child, ma);
+ rc = mdt_attr_get_complex(info, child, ma);
+ if (rc == 0)
+ rc = mdt_finish_open(info, parent,
+ child, flags,
+ 1, ldlm_rep);
+ } else {
+ /* the child does not exist, we should do
+ * regular open */
+ mdt_object_put(env, parent);
+ mdt_object_put(env, child);
+ GOTO(regular_open, 0);
+ }
+ }
mdt_object_put(env, parent);
mdt_object_put(env, child);
GOTO(out, rc);
LASSERT(ergo(rc < 0, lustre_msg_get_transno(req->rq_repmsg) == 0));
}
-int mdt_open_by_fid(struct mdt_thread_info* info,
- struct ldlm_reply *rep)
+static int mdt_open_by_fid(struct mdt_thread_info *info, struct ldlm_reply *rep)
{
- __u32 flags = info->mti_spec.sp_cr_flags;
+ __u64 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;
if (IS_ERR(o))
RETURN(rc = PTR_ERR(o));
- rc = mdt_object_exists(o);
- if (rc > 0) {
- mdt_set_disposition(info, rep, (DISP_IT_EXECD |
- DISP_LOOKUP_EXECD |
- DISP_LOOKUP_POS));
-
- rc = mdt_attr_get_complex(info, o, ma);
- if (rc == 0)
- rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
- } else if (rc == 0) {
- rc = -ENOENT;
- } else {
+ if (unlikely(mdt_object_remote(o))) {
/* the child object was created on remote server */
struct mdt_body *repbody;
+
+ mdt_set_disposition(info, rep, (DISP_IT_EXECD |
+ DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_POS));
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
- repbody->fid1 = *rr->rr_fid2;
- repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
+ repbody->mbo_fid1 = *rr->rr_fid2;
+ repbody->mbo_valid |= (OBD_MD_FLID | OBD_MD_MDS);
rc = 0;
- }
+ } else {
+ if (mdt_object_exists(o)) {
+ mdt_set_disposition(info, rep, (DISP_IT_EXECD |
+ DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_POS));
+ mdt_prep_ma_buf_from_rep(info, o, ma);
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc == 0)
+ rc = mdt_finish_open(info, NULL, o, flags, 0,
+ rep);
+ } else {
+ rc = -ENOENT;
+ }
+ }
mdt_object_put(info->mti_env, o);
RETURN(rc);
struct mdt_lock_handle *lhc,
__u64 *ibits)
{
- struct md_attr *ma = &info->mti_attr;
- __u64 open_flags = info->mti_spec.sp_cr_flags;
- ldlm_mode_t lm = LCK_CR;
- bool try_layout = false;
- bool create_layout = false;
- int rc = 0;
+ struct md_attr *ma = &info->mti_attr;
+ __u64 open_flags = info->mti_spec.sp_cr_flags;
+ enum ldlm_mode lm = LCK_CR;
+ bool acq_lease = !!(open_flags & MDS_OPEN_LEASE);
+ bool try_layout = false;
+ bool create_layout = false;
+ int rc = 0;
ENTRY;
*ibits = 0;
- if (open_flags & MDS_OPEN_LOCK) {
- if (open_flags & FMODE_WRITE)
- lm = LCK_CW;
- /* if file is released, we can't deny write because we must
- * restore (write) it to access it. */
- else if ((open_flags & MDS_FMODE_EXEC) &&
- !((ma->ma_valid & MA_HSM) &&
- (ma->ma_hsm.mh_flags & HS_RELEASED)))
- lm = LCK_PR;
- else
- lm = LCK_CR;
+ mdt_lock_handle_init(lhc);
- *ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_OPEN;
- }
+ if (req_is_replay(mdt_info_req(info)))
+ RETURN(0);
- if (S_ISREG(lu_object_attr(&obj->mot_obj.mo_lu))) {
+ if (S_ISREG(lu_object_attr(&obj->mot_obj))) {
if (ma->ma_need & MA_LOV && !(ma->ma_valid & MA_LOV) &&
md_should_create(open_flags))
create_layout = true;
try_layout = true;
}
- mdt_lock_handle_init(lhc);
- mdt_lock_reg_init(lhc, lm);
+ if (acq_lease) {
+ /* lease open, acquire write mode of open sem */
+ down_write(&obj->mot_open_sem);
+
+ /* Lease exists and ask for new lease */
+ if (atomic_read(&obj->mot_lease_count) > 0) {
+ /* only exclusive open is supported, so lease
+ * are conflicted to each other */
+ GOTO(out, rc = -EBUSY);
+ }
+
+ /* Lease must be with open lock */
+ if (!(open_flags & MDS_OPEN_LOCK)) {
+ CERROR("%s: Request lease for file:"DFID ", but open lock "
+ "is missed, open_flags = %#llo : rc = %d\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(mdt_object_fid(obj)), open_flags, -EPROTO);
+ GOTO(out, rc = -EPROTO);
+ }
+
+ /* XXX: only exclusive open is supported. */
+ lm = LCK_EX;
+ *ibits = MDS_INODELOCK_OPEN;
+
+ /* never grant LCK_EX layout lock to client */
+ try_layout = false;
+ } else { /* normal open */
+ /* normal open holds read mode of open sem */
+ down_read(&obj->mot_open_sem);
+
+ if (open_flags & MDS_OPEN_LOCK) {
+ if (open_flags & FMODE_WRITE)
+ lm = LCK_CW;
+ else if (open_flags & MDS_FMODE_EXEC)
+ lm = LCK_PR;
+ else
+ lm = LCK_CR;
+
+ *ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_OPEN;
+ } else if (atomic_read(&obj->mot_lease_count) > 0) {
+ if (open_flags & FMODE_WRITE)
+ lm = LCK_CW;
+ else
+ lm = LCK_CR;
+
+ /* revoke lease */
+ *ibits = MDS_INODELOCK_OPEN;
+ try_layout = false;
+
+ lhc = &info->mti_lh[MDT_LH_LOCAL];
+ }
+ CDEBUG(D_INODE, "normal open:"DFID" lease count: %d, lm: %d\n",
+ PFID(mdt_object_fid(obj)),
+ atomic_read(&obj->mot_open_count), lm);
+ }
+
+ mdt_lock_reg_init(lhc, lm);
/* one problem to return layout lock on open is that it may result
* in too many layout locks cached on the client side. */
* However this is a double-edged sword because changing
* permission will revoke huge # of LOOKUP locks. */
*ibits |= MDS_INODELOCK_LAYOUT | MDS_INODELOCK_LOOKUP;
- if (!mdt_object_lock_try(info, obj, lhc, *ibits,
- MDT_CROSS_LOCK)) {
+ if (!mdt_object_lock_try(info, obj, lhc, *ibits)) {
*ibits &= ~(MDS_INODELOCK_LAYOUT|MDS_INODELOCK_LOOKUP);
if (*ibits != 0)
- rc = mdt_object_lock(info, obj, lhc, *ibits,
- MDT_CROSS_LOCK);
+ rc = mdt_object_lock(info, obj, lhc, *ibits);
}
} else if (*ibits != 0) {
- rc = mdt_object_lock(info, obj, lhc, *ibits, MDT_CROSS_LOCK);
+ rc = mdt_object_lock(info, obj, lhc, *ibits);
}
- CDEBUG(D_INODE, "Requested bits lock:"DFID ", ibits = "LPX64
- ", open_flags = "LPO64", try_layout = %d, rc = %d\n",
- PFID(mdt_object_fid(obj)), *ibits, open_flags, try_layout, rc);
+ CDEBUG(D_INODE, "%s: Requested bits lock:"DFID ", ibits = %#llx"
+ ", open_flags = %#llo, try_layout = %d : rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(mdt_object_fid(obj)),
+ *ibits, open_flags, try_layout, rc);
/* will change layout, revoke layout locks by enqueuing EX lock. */
if (rc == 0 && create_layout) {
struct mdt_lock_handle *ll = &info->mti_lh[MDT_LH_LAYOUT];
CDEBUG(D_INODE, "Will create layout, get EX layout lock:"DFID
- ", open_flags = "LPO64"\n",
+ ", open_flags = %#llo\n",
PFID(mdt_object_fid(obj)), open_flags);
+ /* We cannot enqueue another lock for the same resource we
+ * already have a lock for, due to mechanics of waiting list
+ * iterating in ldlm, see LU-3601.
+ * As such we'll drop the open lock we just got above here,
+ * it's ok not to have this open lock as it's main purpose is to
+ * flush unused cached client open handles. */
+ if (lustre_handle_is_used(&lhc->mlh_reg_lh))
+ mdt_object_unlock(info, obj, lhc, 1);
+
LASSERT(!try_layout);
mdt_lock_handle_init(ll);
mdt_lock_reg_init(ll, LCK_EX);
- rc = mdt_object_lock(info, obj, ll, MDS_INODELOCK_LAYOUT,
- MDT_LOCAL_LOCK);
+ rc = mdt_object_lock(info, obj, ll, MDS_INODELOCK_LAYOUT);
OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_LL_BLOCK, 2);
}
+ /* Check if there is any other open handles after acquiring
+ * open lock. At this point, caching open handles have been revoked
+ * by open lock.
+ * XXX: Now only exclusive open is supported. Need to check the
+ * type of open for generic lease support. */
+ if (rc == 0 && acq_lease) {
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
+ struct mdt_file_data *mfd;
+ bool is_replay_or_resent;
+ int open_count = 0;
+
+ /* For lease: application can open a file and then apply lease,
+ * @handle contains original open handle in that case.
+ * In recovery, open REQ will be replayed and the lease REQ may
+ * be resent that means the open handle is already stale, so we
+ * need to fix it up here by finding new handle. */
+ is_replay_or_resent = req_is_replay(req) ||
+ lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT;
+
+ /* if the request is _not_ a replay request, rr_handle
+ * may be used to hold an openhandle which is issuing the
+ * lease request, so that this openhandle doesn't count. */
+ mfd = mdt_handle2mfd(med, info->mti_rr.rr_handle,
+ is_replay_or_resent);
+ if (mfd != NULL)
+ ++open_count;
+
+ CDEBUG(D_INODE, "acq_lease "DFID": openers: %d, want: %d\n",
+ PFID(mdt_object_fid(obj)),
+ atomic_read(&obj->mot_open_count), open_count);
+
+ if (atomic_read(&obj->mot_open_count) > open_count)
+ GOTO(out, rc = -EBUSY);
+ }
+ GOTO(out, rc);
+
+out:
RETURN(rc);
}
__u64 ibits, int rc)
{
__u64 open_flags = info->mti_spec.sp_cr_flags;
- struct mdt_lock_handle *ll = &info->mti_lh[MDT_LH_LAYOUT];
+ struct mdt_lock_handle *ll = &info->mti_lh[MDT_LH_LOCAL];
+ ENTRY;
+
+ if (req_is_replay(mdt_info_req(info)))
+ RETURN_EXIT;
+
+ /* Release local lock - the lock put in MDT_LH_LOCAL will never
+ * return to client side. */
+ if (lustre_handle_is_used(&ll->mlh_reg_lh))
+ mdt_object_unlock(info, obj, ll, 1);
- /* Release local layout lock - the layout lock put in MDT_LH_LAYOUT
- * will never return to client side. */
+ ll = &info->mti_lh[MDT_LH_LAYOUT];
+ /* Release local layout lock, layout was created */
if (lustre_handle_is_used(&ll->mlh_reg_lh)) {
LASSERT(!(ibits & MDS_INODELOCK_LAYOUT));
mdt_object_unlock(info, obj, ll, 1);
}
+ if (open_flags & MDS_OPEN_LEASE)
+ up_write(&obj->mot_open_sem);
+ else
+ up_read(&obj->mot_open_sem);
+
/* Cross-ref case, the lock should be returned to the client */
- if (ibits == 0 || rc == -EREMOTE)
- return;
+ if (ibits == 0 || rc == -MDT_EREMOTE_OPEN)
+ RETURN_EXIT;
if (!(open_flags & MDS_OPEN_LOCK) && !(ibits & MDS_INODELOCK_LAYOUT)) {
/* for the open request, the lock will only return to client
* if open or layout lock is granted. */
rc = 1;
}
- if (rc != 0)
- mdt_object_unlock(info, obj, lhc, 1);
+
+ if (rc != 0 || !lustre_handle_is_used(&lhc->mlh_reg_lh)) {
+ struct ldlm_reply *ldlm_rep;
+
+ ldlm_rep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
+ mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
+ if (lustre_handle_is_used(&lhc->mlh_reg_lh))
+ mdt_object_unlock(info, obj, lhc, 1);
+ }
+ RETURN_EXIT;
+}
+
+/**
+ * Check release is permitted for the current HSM flags.
+ */
+static bool mdt_hsm_release_allow(const struct md_attr *ma)
+{
+ if (!(ma->ma_valid & MA_HSM))
+ return false;
+
+ if (ma->ma_hsm.mh_flags & (HS_DIRTY|HS_NORELEASE|HS_LOST))
+ return false;
+
+ if (!(ma->ma_hsm.mh_flags & HS_ARCHIVED))
+ return false;
+
+ return true;
}
-int mdt_open_by_fid_lock(struct mdt_thread_info *info, struct ldlm_reply *rep,
- struct mdt_lock_handle *lhc)
+static int mdt_open_by_fid_lock(struct mdt_thread_info *info,
+ struct ldlm_reply *rep,
+ struct mdt_lock_handle *lhc)
{
const struct lu_env *env = info->mti_env;
struct mdt_device *mdt = info->mti_mdt;
- __u32 flags = info->mti_spec.sp_cr_flags;
+ __u64 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 *parent= NULL;
struct mdt_object *o;
int rc;
- __u64 ibits;
+ bool object_locked = false;
+ __u64 ibits = 0;
ENTRY;
if (md_should_create(flags) && !(flags & MDS_OPEN_HAS_EA)) {
ma->ma_need |= MA_PFID;
}
- o = mdt_object_find(env, mdt, rr->rr_fid2);
- if (IS_ERR(o))
- RETURN(rc = PTR_ERR(o));
+ o = mdt_object_find(env, mdt, rr->rr_fid2);
+ if (IS_ERR(o))
+ GOTO(out_parent_put, rc = PTR_ERR(o));
+
+ if (mdt_object_remote(o)) {
+ CDEBUG(D_INFO, "%s: "DFID" is on remote MDT.\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(rr->rr_fid2));
+ GOTO(out, rc = -EREMOTE);
+ } else if (!mdt_object_exists(o)) {
+ mdt_set_disposition(info, rep,
+ DISP_IT_EXECD |
+ DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_NEG);
+ GOTO(out, rc = -ENOENT);
+ }
- 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));
+ mdt_set_disposition(info, rep, (DISP_IT_EXECD | DISP_LOOKUP_EXECD));
+ mdt_prep_ma_buf_from_rep(info, o, ma);
+ if (flags & MDS_OPEN_RELEASE)
+ ma->ma_need |= MA_HSM;
rc = mdt_attr_get_complex(info, o, ma);
- if (rc)
- GOTO(out, rc);
-
- rc = mdt_object_open_lock(info, o, lhc, &ibits);
- if (rc)
- GOTO(out, rc);
+ if (rc)
+ GOTO(out, rc);
+
+ /* We should not change file's existing LOV EA */
+ if (S_ISREG(lu_object_attr(&o->mot_obj)) &&
+ flags & MDS_OPEN_HAS_EA && ma->ma_valid & MA_LOV)
+ GOTO(out, rc = -EEXIST);
+
+ /* If a release request, check file flags are fine and ask for an
+ * exclusive open access. */
+ if (flags & MDS_OPEN_RELEASE && !mdt_hsm_release_allow(ma))
+ GOTO(out, rc = -EPERM);
+
+ rc = mdt_check_resent_lock(info, o, lhc);
+ if (rc < 0) {
+ GOTO(out, rc);
+ } else if (rc > 0) {
+ rc = mdt_object_open_lock(info, o, lhc, &ibits);
+ object_locked = true;
+ if (rc)
+ GOTO(out_unlock, rc);
+ }
if (ma->ma_valid & MA_PFID) {
parent = mdt_object_find(env, mdt, &ma->ma_pfid);
mdt_set_disposition(info, rep, DISP_LOOKUP_POS);
if (flags & MDS_OPEN_LOCK)
mdt_set_disposition(info, rep, DISP_OPEN_LOCK);
+ if (flags & MDS_OPEN_LEASE)
+ mdt_set_disposition(info, rep, DISP_OPEN_LEASE);
}
- GOTO(out, rc);
+ GOTO(out_unlock, rc);
+out_unlock:
+ if (object_locked)
+ mdt_object_open_unlock(info, o, lhc, ibits, rc);
out:
- mdt_object_open_unlock(info, o, lhc, ibits, rc);
- mdt_object_put(env, o);
- if (parent != NULL)
- mdt_object_put(env, parent);
- return rc;
-}
-
-int mdt_pin(struct mdt_thread_info* info)
-{
- ENTRY;
- RETURN(err_serious(-EOPNOTSUPP));
+ mdt_object_put(env, o);
+out_parent_put:
+ if (parent != NULL)
+ mdt_object_put(env, parent);
+ return rc;
}
/* Cross-ref request. Currently it can only be a pure open (w/o create) */
-int mdt_cross_open(struct mdt_thread_info* info,
- const struct lu_fid *fid,
- struct ldlm_reply *rep, __u32 flags)
+static int mdt_cross_open(struct mdt_thread_info *info,
+ const struct lu_fid *parent_fid,
+ const struct lu_fid *fid,
+ struct ldlm_reply *rep, __u32 flags)
{
struct md_attr *ma = &info->mti_attr;
struct mdt_object *o;
if (IS_ERR(o))
RETURN(rc = PTR_ERR(o));
- rc = mdt_object_exists(o);
- if (rc > 0) {
- /* Do permission check for cross-open. */
- rc = mo_permission(info->mti_env, NULL, mdt_object_child(o),
- NULL, flags | MDS_OPEN_CROSS);
- if (rc)
- goto out;
-
- mdt_set_capainfo(info, 0, fid, BYPASS_CAPA);
- rc = mdt_attr_get_complex(info, o, ma);
- if (rc == 0)
- rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
- } else if (rc == 0) {
- /*
- * Something is wrong here. lookup was positive but there is
- * no object!
- */
- CERROR("Cross-ref object doesn't exist!\n");
+ if (mdt_object_remote(o)) {
+ /* Something is wrong here, the object is on another MDS! */
+ CERROR("%s: "DFID" isn't on this server!: rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(fid), -EFAULT);
+ LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
+ &o->mot_obj,
+ "Object isn't on this server! FLD error?");
rc = -EFAULT;
- } else {
- /* Something is wrong here, the object is on another MDS! */
- CERROR("The object isn't on this server! FLD error?\n");
- LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
- &o->mot_obj.mo_lu,
- "Object isn't on this server! FLD error?\n");
+ } else {
+ if (mdt_object_exists(o)) {
+ /* Do permission check for cross-open. */
+ rc = mo_permission(info->mti_env, NULL,
+ mdt_object_child(o),
+ NULL, flags | MDS_OPEN_CROSS);
+ if (rc)
+ goto out;
+
+ mdt_prep_ma_buf_from_rep(info, o, ma);
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc != 0)
+ GOTO(out, rc);
- rc = -EFAULT;
+ rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
+ } else {
+ /*
+ * Something is wrong here. lookup was positive but
+ * there is no object!
+ */
+ CERROR("%s: "DFID" doesn't exist!: rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(fid), -EFAULT);
+ rc = -EFAULT;
+ }
}
-
out:
mdt_object_put(info->mti_env, o);
RETURN(rc);
}
+/*
+ * find root object and take its xattr lock if it's on remote MDT, later create
+ * may use fs default striping (which is stored in root xattr).
+ */
+static int mdt_lock_root_xattr(struct mdt_thread_info *info,
+ struct mdt_device *mdt)
+{
+ struct mdt_object *md_root = mdt->mdt_md_root;
+ struct lustre_handle lhroot;
+ int rc;
+
+ if (md_root == NULL) {
+ lu_root_fid(&info->mti_tmp_fid1);
+ md_root = mdt_object_find(info->mti_env, mdt,
+ &info->mti_tmp_fid1);
+ if (IS_ERR(md_root))
+ return PTR_ERR(md_root);
+
+ spin_lock(&mdt->mdt_lock);
+ if (mdt->mdt_md_root != NULL) {
+ spin_unlock(&mdt->mdt_lock);
+
+ LASSERTF(mdt->mdt_md_root == md_root,
+ "Different root object ("
+ DFID") instances, %p, %p\n",
+ PFID(&info->mti_tmp_fid1),
+ mdt->mdt_md_root, md_root);
+ LASSERT(atomic_read(
+ &md_root->mot_obj.lo_header->loh_ref) > 1);
+
+ mdt_object_put(info->mti_env, md_root);
+ } else {
+ mdt->mdt_md_root = md_root;
+ spin_unlock(&mdt->mdt_lock);
+ }
+ }
+
+ if (md_root->mot_cache_attr || !mdt_object_remote(md_root))
+ return 0;
+
+ rc = mdt_remote_object_lock(info, md_root, mdt_object_fid(md_root),
+ &lhroot, LCK_PR, MDS_INODELOCK_XATTR,
+ false, true);
+ if (rc < 0)
+ return rc;
+
+ md_root->mot_cache_attr = 1;
+
+ /* don't cancel this lock, so that we know the cached xattr is valid. */
+ ldlm_lock_decref(&lhroot, LCK_PR);
+
+ return 0;
+}
+
int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc)
{
struct mdt_device *mdt = info->mti_mdt;
struct lu_fid *child_fid = &info->mti_tmp_fid1;
struct md_attr *ma = &info->mti_attr;
__u64 create_flags = info->mti_spec.sp_cr_flags;
- __u64 ibits;
+ __u64 ibits = 0;
struct mdt_reint_record *rr = &info->mti_rr;
- struct lu_name *lname;
int result, rc;
int created = 0;
+ int object_locked = 0;
__u32 msg_flags;
ENTRY;
mdt_counter_incr(req, LPROC_MDT_OPEN);
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
- 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;
- 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);
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="LPO64" 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, msg_flags);
-
- if (req_is_replay(req) ||
+ if (create_flags & FMODE_WRITE &&
+ exp_connect_flags(req->rq_export) & OBD_CONNECT_RDONLY)
+ GOTO(out, result = -EROFS);
+
+ CDEBUG(D_INODE, "I am going to open "DFID"/("DNAME"->"DFID") "
+ "cr_flag=%#llo mode=0%06o msg_flag=0x%x\n",
+ PFID(rr->rr_fid1), PNAME(&rr->rr_name),
+ PFID(rr->rr_fid2), create_flags,
+ ma->ma_attr.la_mode, msg_flags);
+
+ if (info->mti_cross_ref) {
+ /* This is cross-ref open */
+ mdt_set_disposition(info, ldlm_rep,
+ (DISP_IT_EXECD | DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_POS));
+ result = mdt_cross_open(info, rr->rr_fid2, rr->rr_fid1,
+ ldlm_rep, create_flags);
+ GOTO(out, result);
+ } else if (req_is_replay(req) ||
(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);
GOTO(out, result = -EFAULT);
}
CDEBUG(D_INFO, "No object(1), continue as regular open.\n");
- } else if ((rr->rr_namelen == 0 && !info->mti_cross_ref &&
- create_flags & MDS_OPEN_LOCK) ||
- (create_flags & MDS_OPEN_BY_FID)) {
+ } else if (create_flags & (MDS_OPEN_BY_FID | MDS_OPEN_LOCK)) {
+ /*
+ * MDS_OPEN_LOCK is checked for backward compatibility with 2.1
+ * client.
+ */
result = mdt_open_by_fid_lock(info, ldlm_rep, lhc);
- if (result != -ENOENT && !(create_flags & MDS_OPEN_CREAT))
- GOTO(out, result);
- if (unlikely(rr->rr_namelen == 0))
- GOTO(out, result = -EINVAL);
- CDEBUG(D_INFO, "No object(2), continue as regular open.\n");
+ if (result < 0)
+ CDEBUG(D_INFO, "no object for "DFID": %d\n",
+ PFID(rr->rr_fid2), result);
+ GOTO(out, result);
}
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_OPEN_PACK))
- GOTO(out, result = err_serious(-ENOMEM));
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_OPEN_PACK))
+ GOTO(out, result = err_serious(-ENOMEM));
- mdt_set_disposition(info, ldlm_rep,
- (DISP_IT_EXECD | DISP_LOOKUP_EXECD));
+ mdt_set_disposition(info, ldlm_rep,
+ (DISP_IT_EXECD | DISP_LOOKUP_EXECD));
- if (info->mti_cross_ref) {
- /* This is cross-ref open */
- mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
- result = mdt_cross_open(info, rr->rr_fid1, ldlm_rep,
- create_flags);
- GOTO(out, result);
- }
+ if (!lu_name_is_valid(&rr->rr_name))
+ GOTO(out, result = -EPROTO);
- lh = &info->mti_lh[MDT_LH_PARENT];
- mdt_lock_pdo_init(lh, (create_flags & MDS_OPEN_CREAT) ?
- LCK_PW : LCK_PR, rr->rr_name, rr->rr_namelen);
+ result = mdt_lock_root_xattr(info, mdt);
+ if (result < 0)
+ GOTO(out, result);
- parent = mdt_object_find_lock(info, rr->rr_fid1, lh,
- MDS_INODELOCK_UPDATE);
- if (IS_ERR(parent))
- GOTO(out, result = PTR_ERR(parent));
+again:
+ lh = &info->mti_lh[MDT_LH_PARENT];
+ mdt_lock_pdo_init(lh,
+ (create_flags & MDS_OPEN_CREAT) ? LCK_PW : LCK_PR,
+ &rr->rr_name);
+
+ parent = mdt_object_find(info->mti_env, mdt, rr->rr_fid1);
+ if (IS_ERR(parent))
+ GOTO(out, result = PTR_ERR(parent));
+
+ result = mdt_object_lock(info, parent, lh, MDS_INODELOCK_UPDATE);
+ if (result != 0) {
+ mdt_object_put(info->mti_env, parent);
+ GOTO(out, result);
+ }
/* get and check version of parent */
result = mdt_version_get_check(info, parent, 0);
fid_zero(child_fid);
- lname = mdt_name(info->mti_env, (char *)rr->rr_name, rr->rr_namelen);
- result = mdo_lookup(info->mti_env, mdt_object_child(parent),
- lname, child_fid, &info->mti_spec);
- LASSERTF(ergo(result == 0, fid_is_sane(child_fid)),
- "looking for "DFID"/%s, result fid="DFID"\n",
- PFID(mdt_object_fid(parent)), rr->rr_name, PFID(child_fid));
+ result = mdo_lookup(info->mti_env, mdt_object_child(parent),
+ &rr->rr_name, child_fid, &info->mti_spec);
+
+ LASSERTF(ergo(result == 0, fid_is_sane(child_fid)),
+ "looking for "DFID"/"DNAME", found FID = "DFID"\n",
+ PFID(mdt_object_fid(parent)), PNAME(&rr->rr_name),
+ PFID(child_fid));
if (result != 0 && result != -ENOENT && result != -ESTALE)
GOTO(out_parent, result);
- if (result == -ENOENT || result == -ESTALE) {
- mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_NEG);
- if (result == -ESTALE) {
- /*
- * -ESTALE means the parent is a dead(unlinked) dir, so
- * it should return -ENOENT to in accordance with the
- * original mds implementaion.
- */
- GOTO(out_parent, result = -ENOENT);
- }
+ if (result == -ENOENT || result == -ESTALE) {
+ /* If the object is dead, let's check if the object
+ * is being migrated to a new object */
+ if (result == -ESTALE) {
+ struct lu_buf lmv_buf;
+
+ lmv_buf.lb_buf = info->mti_xattr_buf;
+ lmv_buf.lb_len = sizeof(info->mti_xattr_buf);
+ rc = mo_xattr_get(info->mti_env,
+ mdt_object_child(parent),
+ &lmv_buf, XATTR_NAME_LMV);
+ if (rc > 0) {
+ struct lmv_mds_md_v1 *lmv;
+
+ lmv = lmv_buf.lb_buf;
+ if (le32_to_cpu(lmv->lmv_hash_type) &
+ LMV_HASH_FLAG_MIGRATION) {
+ /* Get the new parent FID and retry */
+ mdt_object_unlock_put(info, parent,
+ lh, 1);
+ mdt_lock_handle_init(lh);
+ fid_le_to_cpu(
+ (struct lu_fid *)rr->rr_fid1,
+ &lmv->lmv_stripe_fids[1]);
+ goto again;
+ }
+ }
+ }
+
+ mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_NEG);
+ if (result == -ESTALE) {
+ /*
+ * -ESTALE means the parent is a dead(unlinked) dir, so
+ * it should return -ENOENT to in accordance with the
+ * original mds implementaion.
+ */
+ GOTO(out_parent, result = -ENOENT);
+ }
+
if (!(create_flags & MDS_OPEN_CREAT))
GOTO(out_parent, result);
+ if (exp_connect_flags(req->rq_export) & OBD_CONNECT_RDONLY)
+ GOTO(out_parent, result = -EROFS);
*child_fid = *info->mti_rr.rr_fid2;
LASSERTF(fid_is_sane(child_fid), "fid="DFID"\n",
PFID(child_fid));
if (rc)
GOTO(out_child, result = rc);
- mdt_set_capainfo(info, 1, child_fid, BYPASS_CAPA);
if (result == -ENOENT) {
- if (mdt_object_obf(parent))
- GOTO(out_child, result = -EPERM);
+ /* Create under OBF and .lustre is not permitted */
+ if (!fid_is_md_operative(rr->rr_fid1))
+ GOTO(out_child, result = -EPERM);
- /* save versions in reply */
- mdt_version_get_save(info, parent, 0);
- mdt_version_get_save(info, child, 1);
+ /* save versions in reply */
+ mdt_version_get_save(info, parent, 0);
+ mdt_version_get_save(info, child, 1);
- /* version of child will be changed */
- info->mti_mos = child;
+ /* version of child will be changed */
+ tgt_vbr_obj_set(info->mti_env, mdt_obj2dt(child));
/* Not found and with MDS_OPEN_CREAT: let's create it. */
mdt_set_disposition(info, ldlm_rep, DISP_OPEN_CREATE);
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),
- lname,
- mdt_object_child(child),
- &info->mti_spec,
- &info->mti_attr);
+ result = mdo_create(info->mti_env,
+ mdt_object_child(parent),
+ &rr->rr_name,
+ mdt_object_child(child),
+ &info->mti_spec,
+ &info->mti_attr);
if (result == -ERESTART) {
mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_CREATE);
GOTO(out_child, result);
} else {
-
+ mdt_prep_ma_buf_from_rep(info, child, ma);
/* XXX: we should call this once, see few lines below */
if (result == 0)
result = mdt_attr_get_complex(info, child, ma);
if (result != 0)
GOTO(out_child, result);
}
- created = 1;
+ created = 1;
+ mdt_counter_incr(req, LPROC_MDT_MKNOD);
} else {
- /* We have to get attr & LOV EA, HSM bits for this object */
- ma->ma_need |= MA_HSM;
- result = mdt_attr_get_complex(info, child, ma);
/*
* The object is on remote node, return its FID for remote open.
*/
- if (result == -EREMOTE) {
+ if (mdt_object_remote(child)) {
/*
* Check if this lock already was sent to client and
* this is resent case. For resent case do not take lock
*/
LASSERT(lhc != NULL);
- if (lustre_handle_is_used(&lhc->mlh_reg_lh)) {
- struct ldlm_lock *lock;
-
- LASSERT(msg_flags & MSG_RESENT);
-
- lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
- if (!lock) {
- CERROR("Invalid lock handle "LPX64"\n",
- lhc->mlh_reg_lh.cookie);
- LBUG();
- }
- LASSERT(fid_res_name_eq(mdt_object_fid(child),
- &lock->l_resource->lr_name));
- LDLM_LOCK_PUT(lock);
- rc = 0;
- } else {
- mdt_lock_handle_init(lhc);
- mdt_lock_reg_init(lhc, LCK_PR);
-
- rc = mdt_object_lock(info, child, lhc,
- MDS_INODELOCK_LOOKUP,
- MDT_CROSS_LOCK);
- }
- repbody->fid1 = *mdt_object_fid(child);
- repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
+ rc = mdt_check_resent_lock(info, child, lhc);
+ if (rc < 0) {
+ GOTO(out_child, result = rc);
+ } else if (rc > 0) {
+ mdt_lock_handle_init(lhc);
+ mdt_lock_reg_init(lhc, LCK_PR);
+
+ rc = mdt_object_lock(info, child, lhc,
+ MDS_INODELOCK_LOOKUP);
+ }
+ repbody->mbo_fid1 = *mdt_object_fid(child);
+ repbody->mbo_valid |= (OBD_MD_FLID | OBD_MD_MDS);
if (rc != 0)
result = rc;
else
- result = -EREMOTE;
+ result = -MDT_EREMOTE_OPEN;
GOTO(out_child, result);
- }
+ } else if (mdt_object_exists(child)) {
+ /* We have to get attr & LOV EA & HSM for this
+ * object. */
+ mdt_prep_ma_buf_from_rep(info, child, ma);
+ ma->ma_need |= MA_HSM;
+ result = mdt_attr_get_complex(info, child, ma);
+ if (result != 0)
+ GOTO(out_child, result);
+ } else {
+ /* Object does not exist. Likely FS corruption. */
+ CERROR("%s: name '"DNAME"' present, but FID "
+ DFID" is invalid\n", mdt_obd_name(info->mti_mdt),
+ PNAME(&rr->rr_name), PFID(child_fid));
+ GOTO(out_child, result = -EIO);
+ }
}
- LASSERT(!lustre_handle_is_used(&lhc->mlh_reg_lh));
-
- /* get openlock if this is not replay and if a client requested it */
- if (!req_is_replay(req)) {
- rc = mdt_object_open_lock(info, child, lhc, &ibits);
- if (rc != 0) {
- GOTO(out_child, result = rc);
- } else if (create_flags & MDS_OPEN_LOCK) {
- result = -EREMOTE;
+ rc = mdt_check_resent_lock(info, child, lhc);
+ if (rc < 0) {
+ GOTO(out_child, result = rc);
+ } else if (rc == 0) {
+ /* the open lock might already be gotten in
+ * ldlm_handle_enqueue() */
+ LASSERT(lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT);
+ if (create_flags & MDS_OPEN_LOCK)
mdt_set_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
+ } else {
+ /* get openlock if this isn't replay and client requested it */
+ if (!req_is_replay(req)) {
+ rc = mdt_object_open_lock(info, child, lhc, &ibits);
+ object_locked = 1;
+ if (rc != 0)
+ GOTO(out_child_unlock, result = rc);
+ else if (create_flags & MDS_OPEN_LOCK)
+ mdt_set_disposition(info, ldlm_rep,
+ DISP_OPEN_LOCK);
}
}
-
- /* Try to open it now. */
- rc = mdt_finish_open(info, parent, child, create_flags,
- created, ldlm_rep);
- if (rc) {
- result = rc;
+ /* Try to open it now. */
+ rc = mdt_finish_open(info, parent, child, create_flags,
+ created, ldlm_rep);
+ if (rc) {
+ result = rc;
/* openlock will be released if mdt_finish_open failed */
mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
- if (created) {
- ma->ma_need = 0;
- ma->ma_valid = 0;
- ma->ma_cookie_size = 0;
- 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");
+
+ if (created && create_flags & MDS_OPEN_VOLATILE) {
+ CERROR("%s: cannot open volatile file "DFID", orphan "
+ "file will be left in PENDING directory until "
+ "next reboot, rc = %d\n", mdt_obd_name(mdt),
+ PFID(mdt_object_fid(child)), rc);
+ GOTO(out_child_unlock, result);
+ }
+
+ if (created) {
+ ma->ma_need = 0;
+ ma->ma_valid = 0;
+ rc = mdo_unlink(info->mti_env,
+ mdt_object_child(parent),
+ mdt_object_child(child),
+ &rr->rr_name,
+ &info->mti_attr, 0);
+ if (rc != 0)
+ CERROR("%s: "DFID" cleanup of open: rc = %d\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(mdt_object_fid(child)), rc);
mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_CREATE);
- }
- }
- EXIT;
+ }
+ }
+ EXIT;
+out_child_unlock:
+ if (object_locked)
+ mdt_object_open_unlock(info, child, lhc, ibits, result);
out_child:
- mdt_object_open_unlock(info, child, lhc, ibits, result);
- mdt_object_put(info->mti_env, child);
+ mdt_object_put(info->mti_env, child);
out_parent:
- mdt_object_unlock_put(info, parent, lh, result || !created);
+ mdt_object_unlock_put(info, parent, lh, result || !created);
+out:
+ if (result)
+ lustre_msg_set_transno(req->rq_repmsg, 0);
+ return result;
+}
+
+/**
+ * Create an orphan object use local root.
+ */
+static struct mdt_object *mdt_orphan_open(struct mdt_thread_info *info,
+ struct mdt_device *mdt,
+ const struct lu_fid *fid,
+ struct md_attr *attr, fmode_t fmode)
+{
+ const struct lu_env *env = info->mti_env;
+ struct md_op_spec *spec = &info->mti_spec;
+ struct lu_fid *local_root_fid = &info->mti_tmp_fid1;
+ struct mdt_object *obj = NULL;
+ struct mdt_object *local_root;
+ static const struct lu_name lname = {
+ .ln_name = "i_am_nobody",
+ .ln_namelen = sizeof("i_am_nobody") - 1,
+ };
+ struct lu_ucred *uc;
+ cfs_cap_t uc_cap_save;
+ int rc;
+ ENTRY;
+
+ rc = dt_root_get(env, mdt->mdt_bottom, local_root_fid);
+ if (rc != 0)
+ RETURN(ERR_PTR(rc));
+
+ local_root = mdt_object_find(env, mdt, local_root_fid);
+ if (IS_ERR(local_root))
+ RETURN(local_root);
+
+ obj = mdt_object_new(env, mdt, fid);
+ if (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ spec->sp_cr_lookup = 0;
+ spec->sp_feat = &dt_directory_features;
+ spec->sp_cr_mode = MDL_MINMODE; /* no lock */
+ spec->sp_cr_flags = MDS_OPEN_VOLATILE | fmode;
+ if (attr->ma_valid & MA_LOV) {
+ spec->u.sp_ea.eadata = attr->ma_lmm;
+ spec->u.sp_ea.eadatalen = attr->ma_lmm_size;
+ spec->sp_cr_flags |= MDS_OPEN_HAS_EA;
+ } else {
+ spec->sp_cr_flags |= MDS_OPEN_DELAY_CREATE;
+ }
+
+ uc = lu_ucred(env);
+ uc_cap_save = uc->uc_cap;
+ uc->uc_cap |= 1 << CFS_CAP_DAC_OVERRIDE;
+ rc = mdo_create(env, mdt_object_child(local_root), &lname,
+ mdt_object_child(obj), spec, attr);
+ uc->uc_cap = uc_cap_save;
+ if (rc < 0) {
+ CERROR("%s: cannot create volatile file "DFID": rc = %d\n",
+ mdt_obd_name(mdt), PFID(fid), rc);
+ GOTO(out, rc);
+ }
+
+ rc = mo_open(env, mdt_object_child(obj), MDS_OPEN_CREATED);
+ if (rc < 0)
+ CERROR("%s: cannot open volatile file "DFID", orphan "
+ "file will be left in PENDING directory until "
+ "next reboot, rc = %d\n", mdt_obd_name(mdt),
+ PFID(fid), rc);
+ GOTO(out, rc);
+
out:
- if (result && result != -EREMOTE)
- lustre_msg_set_transno(req->rq_repmsg, 0);
- return result;
+ if (rc < 0) {
+ if (!IS_ERR(obj))
+ mdt_object_put(env, obj);
+ obj = ERR_PTR(rc);
+ }
+ mdt_object_put(env, local_root);
+ return obj;
+}
+
+static int mdt_hsm_release(struct mdt_thread_info *info, struct mdt_object *o,
+ struct md_attr *ma)
+{
+ struct mdt_lock_handle *lh = &info->mti_lh[MDT_LH_LAYOUT];
+ struct close_data *data;
+ struct ldlm_lock *lease;
+ struct mdt_object *orphan;
+ struct md_attr *orp_ma;
+ struct lu_buf *buf;
+ bool lease_broken;
+ int rc;
+ int rc2;
+ ENTRY;
+
+ if (exp_connect_flags(info->mti_exp) & OBD_CONNECT_RDONLY)
+ RETURN(-EROFS);
+
+ data = req_capsule_client_get(info->mti_pill, &RMF_CLOSE_DATA);
+ if (data == NULL)
+ RETURN(-EPROTO);
+
+ lease = ldlm_handle2lock(&data->cd_handle);
+ if (lease == NULL)
+ RETURN(-ESTALE);
+
+ /* try to hold open_sem so that nobody else can open the file */
+ if (!down_write_trylock(&o->mot_open_sem)) {
+ ldlm_lock_cancel(lease);
+ GOTO(out_reprocess, rc = -EBUSY);
+ }
+
+ /* Check if the lease open lease has already canceled */
+ lock_res_and_lock(lease);
+ lease_broken = ldlm_is_cancel(lease);
+ unlock_res_and_lock(lease);
+
+ LDLM_DEBUG(lease, DFID " lease broken? %d",
+ PFID(mdt_object_fid(o)), lease_broken);
+
+ /* Cancel server side lease. Client side counterpart should
+ * have been cancelled. It's okay to cancel it now as we've
+ * held mot_open_sem. */
+ ldlm_lock_cancel(lease);
+
+ if (lease_broken) /* don't perform release task */
+ GOTO(out_unlock, rc = -ESTALE);
+
+ if (fid_is_zero(&data->cd_fid) || !fid_is_sane(&data->cd_fid))
+ GOTO(out_unlock, rc = -EINVAL);
+
+ /* ma_need was set before but it seems fine to change it in order to
+ * avoid modifying the one from RPC */
+ ma->ma_need = MA_HSM;
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc != 0)
+ GOTO(out_unlock, rc);
+
+ if (!mdt_hsm_release_allow(ma))
+ GOTO(out_unlock, rc = -EPERM);
+
+ /* already released? */
+ if (ma->ma_hsm.mh_flags & HS_RELEASED)
+ GOTO(out_unlock, rc = 0);
+
+ /* Compare on-disk and packed data_version */
+ if (data->cd_data_version != ma->ma_hsm.mh_arch_ver) {
+ CDEBUG(D_HSM, DFID" data_version mismatches: packed=%llu"
+ " and on-disk=%llu\n", PFID(mdt_object_fid(o)),
+ data->cd_data_version, ma->ma_hsm.mh_arch_ver);
+ GOTO(out_unlock, rc = -EPERM);
+ }
+
+ ma->ma_valid = MA_INODE;
+ ma->ma_attr.la_valid &= LA_ATIME | LA_MTIME | LA_CTIME | LA_SIZE;
+ rc = mo_attr_set(info->mti_env, mdt_object_child(o), ma);
+ if (rc < 0)
+ GOTO(out_unlock, rc);
+
+ ma->ma_need = MA_INODE | MA_LOV;
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc < 0)
+ GOTO(out_unlock, rc);
+
+ if (!(ma->ma_valid & MA_LOV)) {
+ /* Even empty file are released */
+ memset(ma->ma_lmm, 0, sizeof(*ma->ma_lmm));
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
+ ma->ma_lmm->lmm_pattern = cpu_to_le32(LOV_PATTERN_RAID0);
+ ma->ma_lmm->lmm_stripe_size = cpu_to_le32(LOV_MIN_STRIPE_SIZE);
+ ma->ma_lmm_size = sizeof(*ma->ma_lmm);
+ } else {
+ /* Magic must be LOV_MAGIC_Vx_DEF otherwise LOD will interpret
+ * ma_lmm as lov_user_md, then it will be confused by union of
+ * layout_gen and stripe_offset. */
+ if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V1)
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
+ else if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V3)
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V3_DEF);
+ else
+ GOTO(out_unlock, rc = -EINVAL);
+ }
+
+ /* Set file as released */
+ ma->ma_lmm->lmm_pattern |= cpu_to_le32(LOV_PATTERN_F_RELEASED);
+
+ orp_ma = &info->mti_u.hsm.attr;
+ orp_ma->ma_attr.la_mode = S_IFREG | S_IWUSR;
+ orp_ma->ma_attr.la_uid = ma->ma_attr.la_uid;
+ orp_ma->ma_attr.la_gid = ma->ma_attr.la_gid;
+ orp_ma->ma_attr.la_valid = LA_MODE | LA_UID | LA_GID;
+ orp_ma->ma_lmm = ma->ma_lmm;
+ orp_ma->ma_lmm_size = ma->ma_lmm_size;
+ orp_ma->ma_valid = MA_INODE | MA_LOV;
+ orphan = mdt_orphan_open(info, info->mti_mdt, &data->cd_fid, orp_ma,
+ FMODE_WRITE);
+ if (IS_ERR(orphan)) {
+ CERROR("%s: cannot open orphan file "DFID": rc = %ld\n",
+ mdt_obd_name(info->mti_mdt), PFID(&data->cd_fid),
+ PTR_ERR(orphan));
+ GOTO(out_unlock, rc = PTR_ERR(orphan));
+ }
+
+ /* Set up HSM attribute for orphan object */
+ CLASSERT(sizeof(struct hsm_attrs) <= sizeof(info->mti_xattr_buf));
+ buf = &info->mti_buf;
+ buf->lb_buf = info->mti_xattr_buf;
+ buf->lb_len = sizeof(struct hsm_attrs);
+ ma->ma_hsm.mh_flags |= HS_RELEASED;
+ lustre_hsm2buf(buf->lb_buf, &ma->ma_hsm);
+ ma->ma_hsm.mh_flags &= ~HS_RELEASED;
+
+ mdt_lock_reg_init(lh, LCK_EX);
+ rc = mdt_object_lock(info, o, lh, MDS_INODELOCK_LAYOUT |
+ MDS_INODELOCK_XATTR);
+ if (rc != 0)
+ GOTO(out_close, rc);
+
+ rc = mo_xattr_set(info->mti_env, mdt_object_child(orphan), buf,
+ XATTR_NAME_HSM, 0);
+
+ if (rc == 0)
+ /* Swap layout with orphan object */
+ rc = mo_swap_layouts(info->mti_env, mdt_object_child(o),
+ mdt_object_child(orphan),
+ SWAP_LAYOUTS_MDS_HSM);
+
+ /* Release exclusive LL */
+ mdt_object_unlock(info, o, lh, 1);
+
+ EXIT;
+
+out_close:
+ /* Close orphan object anyway */
+ rc2 = mo_close(info->mti_env, mdt_object_child(orphan), orp_ma,
+ FMODE_WRITE);
+ if (rc2 < 0)
+ CERROR("%s: error closing volatile file "DFID": rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(&data->cd_fid), rc2);
+ LU_OBJECT_DEBUG(D_HSM, info->mti_env, &orphan->mot_obj,
+ "object closed");
+ mdt_object_put(info->mti_env, orphan);
+
+out_unlock:
+ up_write(&o->mot_open_sem);
+
+ /* already released */
+ if (rc == 0) {
+ struct mdt_body *repbody;
+
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
+ LASSERT(repbody != NULL);
+ repbody->mbo_valid |= OBD_MD_CLOSE_INTENT_EXECED;
+ }
+
+out_reprocess:
+ ldlm_reprocess_all(lease->l_resource);
+ LDLM_LOCK_PUT(lease);
+
+ ma->ma_valid = 0;
+ ma->ma_need = 0;
+
+ return rc;
}
-#define MFD_CLOSED(mode) (((mode) & ~(MDS_FMODE_EPOCH | MDS_FMODE_SOM | \
- MDS_FMODE_TRUNC)) == MDS_FMODE_CLOSED)
+int mdt_close_swap_layouts(struct mdt_thread_info *info,
+ struct mdt_object *o, struct md_attr *ma)
+{
+ struct mdt_lock_handle *lh1 = &info->mti_lh[MDT_LH_NEW];
+ struct mdt_lock_handle *lh2 = &info->mti_lh[MDT_LH_OLD];
+ struct close_data *data;
+ struct ldlm_lock *lease;
+ struct mdt_object *o1 = o, *o2;
+ bool lease_broken;
+ bool swap_objects;
+ int rc;
+ ENTRY;
+
+ if (exp_connect_flags(info->mti_exp) & OBD_CONNECT_RDONLY)
+ RETURN(-EROFS);
+
+ if (!S_ISREG(lu_object_attr(&o1->mot_obj)))
+ RETURN(-EINVAL);
+
+ data = req_capsule_client_get(info->mti_pill, &RMF_CLOSE_DATA);
+ if (data == NULL)
+ RETURN(-EPROTO);
+
+ if (fid_is_zero(&data->cd_fid) || !fid_is_sane(&data->cd_fid))
+ RETURN(-EINVAL);
+ rc = lu_fid_cmp(&data->cd_fid, mdt_object_fid(o));
+ if (unlikely(rc == 0))
+ RETURN(-EINVAL);
+
+ /* Exchange o1 and o2, to enforce locking order */
+ swap_objects = (rc < 0);
+
+ lease = ldlm_handle2lock(&data->cd_handle);
+ if (lease == NULL)
+ RETURN(-ESTALE);
+
+ o2 = mdt_object_find(info->mti_env, info->mti_mdt, &data->cd_fid);
+ if (IS_ERR(o2))
+ GOTO(out_lease, rc = PTR_ERR(o2));
+
+ if (!S_ISREG(lu_object_attr(&o2->mot_obj))) {
+ swap_objects = false; /* not swapped yet */
+ GOTO(out_obj, rc = -EINVAL);
+ }
+
+ if (swap_objects)
+ swap(o1, o2);
+
+ rc = mo_permission(info->mti_env, NULL, mdt_object_child(o1), NULL,
+ MAY_WRITE);
+ if (rc < 0)
+ GOTO(out_obj, rc);
+
+ rc = mo_permission(info->mti_env, NULL, mdt_object_child(o2), NULL,
+ MAY_WRITE);
+ if (rc < 0)
+ GOTO(out_obj, rc);
+
+ /* try to hold open_sem so that nobody else can open the file */
+ if (!down_write_trylock(&o->mot_open_sem)) {
+ ldlm_lock_cancel(lease);
+ GOTO(out_obj, rc = -EBUSY);
+ }
+
+ /* Check if the lease open lease has already canceled */
+ lock_res_and_lock(lease);
+ lease_broken = ldlm_is_cancel(lease);
+ unlock_res_and_lock(lease);
+
+ LDLM_DEBUG(lease, DFID " lease broken? %d",
+ PFID(mdt_object_fid(o)), lease_broken);
+
+ /* Cancel server side lease. Client side counterpart should
+ * have been cancelled. It's okay to cancel it now as we've
+ * held mot_open_sem. */
+ ldlm_lock_cancel(lease);
+
+ if (lease_broken)
+ GOTO(out_unlock_sem, rc = -ESTALE);
+
+ mdt_lock_reg_init(lh1, LCK_EX);
+ rc = mdt_object_lock(info, o1, lh1, MDS_INODELOCK_LAYOUT |
+ MDS_INODELOCK_XATTR);
+ if (rc < 0)
+ GOTO(out_unlock_sem, rc);
+
+ mdt_lock_reg_init(lh2, LCK_EX);
+ rc = mdt_object_lock(info, o2, lh2, MDS_INODELOCK_LAYOUT |
+ MDS_INODELOCK_XATTR);
+ if (rc < 0)
+ GOTO(out_unlock1, rc);
+
+ /* Swap layout with orphan object */
+ rc = mo_swap_layouts(info->mti_env, mdt_object_child(o1),
+ mdt_object_child(o2), 0);
+ if (rc < 0)
+ GOTO(out_unlock2, rc);
+
+ EXIT;
+
+out_unlock2:
+ /* Release exclusive LL */
+ mdt_object_unlock(info, o2, lh2, 1);
+
+out_unlock1:
+ mdt_object_unlock(info, o1, lh1, 1);
+
+out_unlock_sem:
+ up_write(&o->mot_open_sem);
+
+ /* already swapped */
+ if (rc == 0) {
+ struct mdt_body *repbody;
+
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
+ LASSERT(repbody != NULL);
+ repbody->mbo_valid |= OBD_MD_CLOSE_INTENT_EXECED;
+ }
+
+out_obj:
+ mdt_object_put(info->mti_env, swap_objects ? o1 : o2);
+
+ ldlm_reprocess_all(lease->l_resource);
+
+out_lease:
+ LDLM_LOCK_PUT(lease);
+
+ if (ma != NULL) {
+ ma->ma_valid = 0;
+ ma->ma_need = 0;
+ }
+
+ return rc;
+}
+
+#define MFD_CLOSED(mode) ((mode) == MDS_FMODE_CLOSED)
static int mdt_mfd_closed(struct mdt_file_data *mfd)
{
return ((mfd == NULL) || MFD_CLOSED(mfd->mfd_mode));
struct mdt_object *o = mfd->mfd_object;
struct md_object *next = mdt_object_child(o);
struct md_attr *ma = &info->mti_attr;
- int ret = MDT_IOEPOCH_CLOSED;
int rc = 0;
- int mode;
+ __u64 mode;
ENTRY;
mode = mfd->mfd_mode;
- if ((mode & FMODE_WRITE) || (mode & MDS_FMODE_TRUNC)) {
- mdt_write_put(o);
- ret = mdt_ioepoch_close(info, o);
- } else if (mode & MDS_FMODE_EXEC) {
- mdt_write_allow(o);
- } else if (mode & MDS_FMODE_EPOCH) {
- ret = mdt_ioepoch_close(info, o);
- } else if (mode & MDS_FMODE_SOM) {
- ret = mdt_som_au_close(info, o);
- }
+ if (ma->ma_attr_flags & MDS_HSM_RELEASE) {
+ rc = mdt_hsm_release(info, o, ma);
+ if (rc < 0) {
+ CDEBUG(D_HSM, "%s: File " DFID " release failed: %d\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(mdt_object_fid(o)), rc);
+ /* continue to close even error occurred. */
+ }
+ }
+
+ if (ma->ma_attr_flags & MDS_CLOSE_LAYOUT_SWAP) {
+ rc = mdt_close_swap_layouts(info, o, ma);
+ if (rc < 0) {
+ CDEBUG(D_INODE,
+ "%s: cannot swap layout of "DFID": rc=%d\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(mdt_object_fid(o)), rc);
+ /* continue to close even if error occurred. */
+ }
+ }
+
+ if (mode & FMODE_WRITE)
+ mdt_write_put(o);
+ else if (mode & MDS_FMODE_EXEC)
+ mdt_write_allow(o);
/* Update atime on close only. */
if ((mode & MDS_FMODE_EXEC || mode & FMODE_READ || mode & FMODE_WRITE)
rc = mo_attr_set(info->mti_env, next, ma);
}
- /* If file data is modified, add the dirty flag.
- *
- * If MDS_CLOSE_CLEANUP is set, this file is being closed due to an
- * eviction, file could have been modified and now dirty
- * regarding to HSM archive, check this!
- * The logic here is to mark a file dirty if there's a chance it was
- * dirtied before the client was evicted, so that we don't have to wait
- * for a release attempt before finding out the file was actually dirty
- * and fail the release. Aggressively marking it dirty here will cause
- * the policy engine to attempt to re-archive it; when rearchiving, we
- * can compare the current version to the LMA data_version and make the
- * archive request into a noop if it's not actually dirty.
- */
- if ((ma->ma_attr_flags & MDS_DATA_MODIFIED) ||
- ((ma->ma_attr_flags & MDS_CLOSE_CLEANUP) &&
- (mode & (FMODE_WRITE|MDS_FMODE_TRUNC))))
+ /* If file data is modified, add the dirty flag. */
+ if (ma->ma_attr_flags & MDS_DATA_MODIFIED)
rc = mdt_add_dirty_flag(info, o, ma);
ma->ma_need |= MA_INODE;
if (!MFD_CLOSED(mode))
rc = mo_close(info->mti_env, next, ma, mode);
- if (ret == MDT_IOEPOCH_GETATTR || ret == MDT_IOEPOCH_OPENED) {
- struct mdt_export_data *med;
+ /* adjust open and lease count */
+ if (mode & MDS_OPEN_LEASE) {
+ LASSERT(atomic_read(&o->mot_lease_count) > 0);
+ atomic_dec(&o->mot_lease_count);
+ }
- /* The IOepoch is still opened or SOM update is needed.
- * Put mfd back into the list. */
- LASSERT(mdt_conn_flags(info) & OBD_CONNECT_SOM);
- mdt_mfd_set_mode(mfd, ret == MDT_IOEPOCH_OPENED ?
- MDS_FMODE_EPOCH : MDS_FMODE_SOM);
+ LASSERT(atomic_read(&o->mot_open_count) > 0);
+ atomic_dec(&o->mot_open_count);
+ mdt_mfd_free(mfd);
+ mdt_object_put(info->mti_env, o);
- LASSERT(mdt_info_req(info));
- med = &mdt_info_req(info)->rq_export->exp_mdt_data;
- spin_lock(&med->med_open_lock);
- cfs_list_add(&mfd->mfd_list, &med->med_open_head);
- class_handle_hash_back(&mfd->mfd_handle);
+ RETURN(rc);
+}
+
+int mdt_close_internal(struct mdt_thread_info *info, struct ptlrpc_request *req,
+ struct mdt_body *repbody)
+{
+ struct mdt_export_data *med;
+ struct mdt_file_data *mfd;
+ struct mdt_object *o;
+ struct md_attr *ma = &info->mti_attr;
+ int ret = 0;
+ int rc = 0;
+ ENTRY;
+
+ med = &req->rq_export->exp_mdt_data;
+ spin_lock(&med->med_open_lock);
+ mfd = mdt_handle2mfd(med, &info->mti_close_handle, req_is_replay(req));
+ if (mdt_mfd_closed(mfd)) {
+ spin_unlock(&med->med_open_lock);
+ CDEBUG(D_INODE, "no handle for file close: fid = "DFID
+ ": cookie = %#llx\n", PFID(info->mti_rr.rr_fid1),
+ info->mti_close_handle.cookie);
+ /** not serious error since bug 3633 */
+ rc = -ESTALE;
+ } else {
+ class_handle_unhash(&mfd->mfd_handle);
+ list_del_init(&mfd->mfd_list);
spin_unlock(&med->med_open_lock);
- if (ret == MDT_IOEPOCH_OPENED) {
- ret = 0;
- } else {
- ret = -EAGAIN;
- CDEBUG(D_INODE, "Size-on-MDS attribute update is "
- "needed on "DFID"\n", PFID(mdt_object_fid(o)));
- }
- } else {
- mdt_mfd_free(mfd);
- mdt_object_put(info->mti_env, o);
- }
+ /* Do not lose object before last unlink. */
+ o = mfd->mfd_object;
+ mdt_object_get(info->mti_env, o);
+ ret = mdt_mfd_close(info, mfd);
+ if (repbody != NULL)
+ rc = mdt_handle_last_unlink(info, o, ma);
+ mdt_object_put(info->mti_env, o);
+ }
- RETURN(rc ? rc : ret);
+ RETURN(rc ? rc : ret);
}
-int mdt_close(struct mdt_thread_info *info)
+int mdt_close(struct tgt_session_info *tsi)
{
- struct mdt_export_data *med;
- struct mdt_file_data *mfd;
- struct mdt_object *o;
+ struct mdt_thread_info *info = tsi2mdt_info(tsi);
+ struct ptlrpc_request *req = tgt_ses_req(tsi);
struct md_attr *ma = &info->mti_attr;
struct mdt_body *repbody = NULL;
- struct ptlrpc_request *req = mdt_info_req(info);
int rc, ret = 0;
ENTRY;
mdt_counter_incr(req, LPROC_MDT_CLOSE);
- /* Close may come with the Size-on-MDS update. Unpack it. */
- rc = mdt_close_unpack(info);
- if (rc)
- RETURN(err_serious(rc));
-
- LASSERT(info->mti_ioepoch);
+ /* Close may come with the Size-on-MDS update. Unpack it. */
+ rc = mdt_close_unpack(info);
+ if (rc)
+ GOTO(out, rc = err_serious(rc));
+ /* These fields are no longer used and are left for compatibility.
+ * size is always zero */
req_capsule_set_size(info->mti_pill, &RMF_MDT_MD, RCL_SERVER,
- info->mti_mdt->mdt_max_mdsize);
+ 0);
req_capsule_set_size(info->mti_pill, &RMF_LOGCOOKIES, RCL_SERVER,
- info->mti_mdt->mdt_max_cookiesize);
+ 0);
rc = req_capsule_server_pack(info->mti_pill);
if (mdt_check_resent(info, mdt_reconstruct_generic, NULL)) {
mdt_client_compatibility(info);
if (rc == 0)
mdt_fix_reply(info);
mdt_exit_ucred(info);
- RETURN(lustre_msg_get_status(req->rq_repmsg));
+ GOTO(out, rc = lustre_msg_get_status(req->rq_repmsg));
}
/* Continue to close handle even if we can not pack reply */
ma->ma_lmm_size = req_capsule_get_size(info->mti_pill,
&RMF_MDT_MD,
RCL_SERVER);
- ma->ma_cookie = req_capsule_server_get(info->mti_pill,
- &RMF_LOGCOOKIES);
- ma->ma_cookie_size = req_capsule_get_size(info->mti_pill,
- &RMF_LOGCOOKIES,
- RCL_SERVER);
- ma->ma_need = MA_INODE | MA_LOV | MA_COOKIE;
- repbody->eadatasize = 0;
- repbody->aclsize = 0;
+ ma->ma_need = MA_INODE | MA_LOV;
+ repbody->mbo_eadatasize = 0;
+ repbody->mbo_aclsize = 0;
} else {
rc = err_serious(rc);
}
- med = &req->rq_export->exp_mdt_data;
- spin_lock(&med->med_open_lock);
- mfd = mdt_handle2mfd(info, &info->mti_ioepoch->handle);
- if (mdt_mfd_closed(mfd)) {
- spin_unlock(&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_ioepoch->handle.cookie);
- /** not serious error since bug 3633 */
- rc = -ESTALE;
- } else {
- class_handle_unhash(&mfd->mfd_handle);
- cfs_list_del_init(&mfd->mfd_list);
- spin_unlock(&med->med_open_lock);
+ rc = mdt_close_internal(info, req, repbody);
+ if (rc != -ESTALE)
+ mdt_empty_transno(info, rc);
- /* Do not lose object before last unlink. */
- o = mfd->mfd_object;
- mdt_object_get(info->mti_env, o);
- ret = mdt_mfd_close(info, mfd);
- if (repbody != NULL)
- rc = mdt_handle_last_unlink(info, o, ma);
- mdt_empty_transno(info, rc);
- mdt_object_put(info->mti_env, o);
- }
if (repbody != NULL) {
mdt_client_compatibility(info);
rc = mdt_fix_reply(info);
}
mdt_exit_ucred(info);
- 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);
-}
-
-/**
- * DONE_WRITING rpc handler.
- *
- * As mfd is not kept after replayed CLOSE (see mdt_ioepoch_close_on_replay()),
- * only those DONE_WRITING rpc will be replayed which really wrote smth on disk,
- * and got a trasid. Waiting for such DONE_WRITING is not reliable, so just
- * skip attributes and reconstruct the reply here.
- */
-int mdt_done_writing(struct mdt_thread_info *info)
-{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_body *repbody = NULL;
- struct mdt_export_data *med;
- struct mdt_file_data *mfd;
- int rc;
- ENTRY;
-
- rc = req_capsule_server_pack(info->mti_pill);
- if (rc)
- RETURN(err_serious(rc));
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CLOSE_PACK))
+ GOTO(out, rc = err_serious(-ENOMEM));
- repbody = req_capsule_server_get(info->mti_pill,
- &RMF_MDT_BODY);
- repbody->eadatasize = 0;
- repbody->aclsize = 0;
-
- /* Done Writing may come with the Size-on-MDS update. Unpack it. */
- rc = mdt_close_unpack(info);
- if (rc)
- RETURN(err_serious(rc));
-
- if (mdt_check_resent(info, mdt_reconstruct_generic, NULL)) {
- mdt_exit_ucred(info);
- RETURN(lustre_msg_get_status(req->rq_repmsg));
- }
-
- med = &info->mti_exp->exp_mdt_data;
- spin_lock(&med->med_open_lock);
- mfd = mdt_handle2mfd(info, &info->mti_ioepoch->handle);
- if (mfd == NULL) {
- spin_unlock(&med->med_open_lock);
- CDEBUG(D_INODE, "no handle for done write: fid = "DFID
- ": cookie = "LPX64" ioepoch = "LPU64"\n",
- PFID(info->mti_rr.rr_fid1),
- info->mti_ioepoch->handle.cookie,
- info->mti_ioepoch->ioepoch);
- /* If this is a replay, reconstruct the transno. */
- if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
- rc = info->mti_ioepoch->flags & MF_SOM_AU ?
- -EAGAIN : 0;
- mdt_empty_transno(info, rc);
- } else
- rc = -ESTALE;
- GOTO(error_ucred, rc);
- }
-
- LASSERT(mfd->mfd_mode == MDS_FMODE_EPOCH ||
- mfd->mfd_mode == MDS_FMODE_TRUNC);
- class_handle_unhash(&mfd->mfd_handle);
- cfs_list_del_init(&mfd->mfd_list);
- spin_unlock(&med->med_open_lock);
-
- /* Set EPOCH CLOSE flag if not set by client. */
- info->mti_ioepoch->flags |= MF_EPOCH_CLOSE;
- info->mti_attr.ma_valid = 0;
-
- info->mti_attr.ma_lmm_size = info->mti_mdt->mdt_max_mdsize;
- OBD_ALLOC_LARGE(info->mti_attr.ma_lmm, info->mti_mdt->mdt_max_mdsize);
- if (info->mti_attr.ma_lmm == NULL)
- GOTO(error_ucred, rc = -ENOMEM);
-
- rc = mdt_mfd_close(info, mfd);
-
- OBD_FREE_LARGE(info->mti_attr.ma_lmm, info->mti_mdt->mdt_max_mdsize);
- mdt_empty_transno(info, rc);
-error_ucred:
- mdt_exit_ucred(info);
- RETURN(rc);
+ if (OBD_FAIL_CHECK_RESET(OBD_FAIL_MDS_CLOSE_NET_REP,
+ OBD_FAIL_MDS_CLOSE_NET_REP))
+ tsi->tsi_reply_fail_id = OBD_FAIL_MDS_CLOSE_NET_REP;
+out:
+ mdt_thread_info_fini(info);
+ RETURN(rc ? rc : ret);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff