X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fmdt%2Fmdt_open.c;h=97918c48240074a1bdeeabe77ec77ae0a2df3b8e;hp=20281b8ffda57f392abaf9b08ebfb41b0d32541f;hb=2bc5bcb7efa247fcd8cc65d013ffc9f6c33dd788;hpb=cc6ce9c787a9a119ac2df673d68114908c34b0a8 diff --git a/lustre/mdt/mdt_open.c b/lustre/mdt/mdt_open.c index 20281b8..97918c4 100644 --- a/lustre/mdt/mdt_open.c +++ b/lustre/mdt/mdt_open.c @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -29,8 +27,7 @@ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011 Whamcloud, Inc. - * + * Copyright (c) 2011, 2014, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -43,92 +40,102 @@ * Author: Huang Hua */ -#ifndef EXPORT_SYMTAB -# define EXPORT_SYMTAB -#endif #define DEBUG_SUBSYSTEM S_MDS #include #include #include "mdt_internal.h" +#include /* we do nothing because we do not have refcount now */ static void mdt_mfd_get(void *mfdp) { } +static struct portals_handle_ops mfd_handle_ops = { + .hop_addref = mdt_mfd_get, + .hop_free = NULL, +}; + /* 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; - - OBD_ALLOC_PTR(mfd); - if (mfd != NULL) { - CFS_INIT_LIST_HEAD(&mfd->mfd_handle.h_link); - CFS_INIT_LIST_HEAD(&mfd->mfd_list); - class_handle_hash(&mfd->mfd_handle, mdt_mfd_get); - } - RETURN(mfd); + struct mdt_file_data *mfd; + ENTRY; + + 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); } /* * 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; - - 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); + struct mdt_file_data *mfd; + ENTRY; + + 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; - - if (!md_should_create(spec->sp_cr_flags)) - RETURN(0); - - ma->ma_need = MA_INODE | MA_LOV; - ma->ma_valid = 0; - cfs_down(&o->mot_lov_sem); - 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 (rc == 0 && ma->ma_valid & MA_LOV) - o->mot_flags |= MOF_LOV_CREATED; - } - cfs_up(&o->mot_lov_sem); - RETURN(rc); + 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); + + 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 (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) @@ -143,7 +150,7 @@ int mdt_object_is_som_enabled(struct mdt_object *mo) /** * Re-enable Size-on-MDS. - * Call under ->mot_ioepoch_sem. + * Call under ->mot_ioepoch_mutex. */ static void mdt_object_som_enable(struct mdt_object *mo, __u64 ioepoch) { @@ -156,7 +163,7 @@ static void mdt_object_som_enable(struct mdt_object *mo, __u64 ioepoch) /** * Open the IOEpoch. It is allowed if @writecount is not negative. - * The epoch and writecount handling is performed under the mot_ioepoch_sem. + * 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) @@ -166,18 +173,18 @@ int mdt_ioepoch_open(struct mdt_thread_info *info, struct mdt_object *o, int rc = 0; ENTRY; - if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) || - !S_ISREG(lu_object_attr(&o->mot_obj.mo_lu))) - RETURN(0); - - cfs_down(&o->mot_ioepoch_sem); - 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 */ - cfs_spin_lock(&mdt->mdt_ioepoch_lock); + if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) || + !S_ISREG(lu_object_attr(&o->mot_obj))) + 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; @@ -188,16 +195,16 @@ int mdt_ioepoch_open(struct mdt_thread_info *info, struct mdt_object *o, else o->mot_ioepoch = mdt->mdt_ioepoch; - cfs_spin_unlock(&mdt->mdt_ioepoch_lock); + 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++; - cfs_up(&o->mot_ioepoch_sem); + 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(). */ @@ -215,45 +222,49 @@ int mdt_ioepoch_open(struct mdt_thread_info *info, struct mdt_object *o, /** * Update SOM on-disk attributes. * If enabling, write update inodes and lustre-ea with the proper IOEpoch, - * mountid and attributes. If disabling, zero IOEpoch id in lustre-ea. - * Call under ->mot_ioepoch_sem. + * 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, int enable) + struct mdt_object *obj, __u64 ioepoch, bool enable) { - struct md_attr *ma = &info->mti_attr; - int rc; + 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))); - ma->ma_valid |= MA_SOM; - ma->ma_som = &info->mti_u.som.data; - if (enable) { - struct mdt_device *mdt = info->mti_mdt; - struct lu_attr *la = &ma->ma_attr; - - ma->ma_som->msd_ioepoch = ioepoch; - ma->ma_som->msd_size = la->la_valid & LA_SIZE ? la->la_size : 0; - ma->ma_som->msd_blocks = la->la_valid & LA_BLOCKS ? - la->la_blocks : 0; - ma->ma_som->msd_mountid = mdt->mdt_lut.lut_obd->u.obt.obt_mount_count; - ma->ma_attr.la_valid &= LA_ATIME | LA_MTIME | LA_CTIME; - } else { - ma->ma_som->msd_ioepoch = IOEPOCH_INVAL; - ma->ma_attr.la_valid &= LA_ATIME; - } - - /* Since we have opened the file, it is unnecessary - * to check permission when close it. Between the "open" - * 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. */ - ma->ma_attr_flags |= MDS_PERM_BYPASS | MDS_SOM; + 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); + } - rc = mdt_attr_set(info, obj, ma, 0); RETURN(rc); } @@ -263,7 +274,7 @@ static inline int mdt_ioepoch_close_on_eviction(struct mdt_thread_info *info, { int rc = 0; - cfs_down(&o->mot_ioepoch_sem); + 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); @@ -276,7 +287,7 @@ static inline int mdt_ioepoch_close_on_eviction(struct mdt_thread_info *info, rc = mdt_som_attr_set(info, o, o->mot_ioepoch, MDT_SOM_DISABLE); mdt_object_som_enable(o, o->mot_ioepoch); } - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); RETURN(rc); } @@ -291,7 +302,7 @@ static inline int mdt_ioepoch_close_on_replay(struct mdt_thread_info *info, int rc = MDT_IOEPOCH_CLOSED; ENTRY; - cfs_down(&o->mot_ioepoch_sem); + 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--; @@ -303,7 +314,7 @@ static inline int mdt_ioepoch_close_on_replay(struct mdt_thread_info *info, if (!mdt_ioepoch_opened(o)) mdt_object_som_enable(o, info->mti_ioepoch->ioepoch); - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); RETURN(rc); } @@ -332,7 +343,7 @@ static inline int mdt_ioepoch_close_reg(struct mdt_thread_info *info, la = &info->mti_attr.ma_attr; achange = (info->mti_ioepoch->flags & MF_SOM_CHANGE); - cfs_down(&o->mot_ioepoch_sem); + mutex_lock(&o->mot_ioepoch_mutex); o->mot_ioepoch_count--; tmp_ma = &info->mti_u.som.attr; @@ -341,7 +352,7 @@ static inline int mdt_ioepoch_close_reg(struct mdt_thread_info *info, 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 = mo_attr_get(info->mti_env, mdt_object_child(o), tmp_ma); + rc = mdt_attr_get_complex(info, o, tmp_ma); if (rc) GOTO(error_up, rc); @@ -399,19 +410,19 @@ static inline int mdt_ioepoch_close_reg(struct mdt_thread_info *info, mdt_object_som_enable(o, o->mot_ioepoch); } - cfs_up(&o->mot_ioepoch_sem); + 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; + rep->mbo_valid |= OBD_MD_FLGETATTRLOCK; } RETURN(rc ? : ret); error_up: - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); return rc; } @@ -427,12 +438,12 @@ error_up: */ static int mdt_ioepoch_close(struct mdt_thread_info *info, struct mdt_object *o) { - struct ptlrpc_request *req = mdt_info_req(info); - ENTRY; + 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); + if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) || + !S_ISREG(lu_object_attr(&o->mot_obj))) + RETURN(0); LASSERT(o->mot_ioepoch_count); LASSERT(info->mti_ioepoch == NULL || @@ -444,7 +455,7 @@ static int mdt_ioepoch_close(struct mdt_thread_info *info, struct mdt_object *o) 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) + if (info->mti_ioepoch && (info->mti_ioepoch->flags & MF_EPOCH_CLOSE)) RETURN(mdt_ioepoch_close_reg(info, o)); /* IO epoch is not closed. */ RETURN(MDT_IOEPOCH_OPENED); @@ -459,18 +470,18 @@ static int mdt_ioepoch_close(struct mdt_thread_info *info, struct mdt_object *o) * 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) +static 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; + 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); + LASSERT(!req || info->mti_ioepoch); + if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) || + !S_ISREG(lu_object_attr(&o->mot_obj))) + 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. */ @@ -480,7 +491,7 @@ int mdt_som_au_close(struct mdt_thread_info *info, struct mdt_object *o) !(info->mti_attr.ma_attr.la_valid & LA_SIZE))) act = MDT_SOM_DISABLE; - cfs_down(&o->mot_ioepoch_sem); + 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) @@ -490,11 +501,12 @@ int mdt_som_au_close(struct mdt_thread_info *info, struct mdt_object *o) ioepoch = info->mti_ioepoch ? info->mti_ioepoch->ioepoch : o->mot_ioepoch; - if (!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY)) + if (req != NULL + && !(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY)) rc = mdt_som_attr_set(info, o, ioepoch, act); mdt_object_som_enable(o, ioepoch); } - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); RETURN(rc); } @@ -502,9 +514,9 @@ int mdt_write_read(struct mdt_object *o) { int rc = 0; ENTRY; - cfs_down(&o->mot_ioepoch_sem); + mutex_lock(&o->mot_ioepoch_mutex); rc = o->mot_writecount; - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); RETURN(rc); } @@ -512,21 +524,21 @@ int mdt_write_get(struct mdt_object *o) { int rc = 0; ENTRY; - cfs_down(&o->mot_ioepoch_sem); + mutex_lock(&o->mot_ioepoch_mutex); if (o->mot_writecount < 0) rc = -ETXTBSY; else o->mot_writecount++; - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); RETURN(rc); } void mdt_write_put(struct mdt_object *o) { ENTRY; - cfs_down(&o->mot_ioepoch_sem); + mutex_lock(&o->mot_ioepoch_mutex); o->mot_writecount--; - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); EXIT; } @@ -534,66 +546,150 @@ static int mdt_write_deny(struct mdt_object *o) { int rc = 0; ENTRY; - cfs_down(&o->mot_ioepoch_sem); + mutex_lock(&o->mot_ioepoch_mutex); if (o->mot_writecount > 0) rc = -ETXTBSY; else o->mot_writecount--; - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); RETURN(rc); } static void mdt_write_allow(struct mdt_object *o) { ENTRY; - cfs_down(&o->mot_ioepoch_sem); + mutex_lock(&o->mot_ioepoch_mutex); o->mot_writecount++; - cfs_up(&o->mot_ioepoch_sem); + mutex_unlock(&o->mot_ioepoch_mutex); EXIT; } /* there can be no real transaction so prepare the fake one */ -static void mdt_empty_transno(struct mdt_thread_info* info) +static void mdt_empty_transno(struct mdt_thread_info *info, int rc) { - struct mdt_device *mdt = info->mti_mdt; - struct ptlrpc_request *req = mdt_info_req(info); + struct mdt_device *mdt = info->mti_mdt; + struct ptlrpc_request *req = mdt_info_req(info); + struct tg_export_data *ted; + struct lsd_client_data *lcd; ENTRY; /* transaction has occurred already */ if (lustre_msg_get_transno(req->rq_repmsg) != 0) RETURN_EXIT; - cfs_spin_lock(&mdt->mdt_lut.lut_translock); - if (info->mti_transno == 0) { - info->mti_transno = ++ mdt->mdt_lut.lut_last_transno; + 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_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) { + info->mti_transno = ++mdt->mdt_lut.lut_last_transno; + } else { + /* should be replay */ + if (info->mti_transno > mdt->mdt_lut.lut_last_transno) + mdt->mdt_lut.lut_last_transno = info->mti_transno; + } + 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); + + 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); + mutex_lock(&ted->ted_lcd_lock); + lcd = ted->ted_lcd; + if (info->mti_transno < lcd->lcd_last_transno && + info->mti_transno != 0) { + /* This should happen during replay. Do not update + * last rcvd info if replay req transno < last transno, + * 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_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 (info->mti_transno != 0) + lcd->lcd_last_close_transno = info->mti_transno; + lcd->lcd_last_close_xid = req->rq_xid; + lcd->lcd_last_close_result = rc; } else { - /* should be replay */ - if (info->mti_transno > mdt->mdt_lut.lut_last_transno) - mdt->mdt_lut.lut_last_transno = info->mti_transno; - } - cfs_spin_unlock(&mdt->mdt_lut.lut_translock); + /* VBR: save versions in last_rcvd for reconstruct. */ + __u64 *pre_versions = lustre_msg_get_versions(req->rq_repmsg); + if (pre_versions) { + lcd->lcd_pre_versions[0] = pre_versions[0]; + lcd->lcd_pre_versions[1] = pre_versions[1]; + lcd->lcd_pre_versions[2] = pre_versions[2]; + lcd->lcd_pre_versions[3] = pre_versions[3]; + } + if (info->mti_transno != 0) + lcd->lcd_last_transno = info->mti_transno; - CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n", - info->mti_transno, - req->rq_export->exp_obd->obd_last_committed); + lcd->lcd_last_xid = req->rq_xid; + lcd->lcd_last_result = rc; + lcd->lcd_last_data = info->mti_opdata; + } + mutex_unlock(&ted->ted_lcd_lock); - req->rq_transno = info->mti_transno; - lustre_msg_set_transno(req->rq_repmsg, info->mti_transno); 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, DFID " Change mfd mode "LPO64" -> "LPO64".\n", + PFID(mdt_object_fid(mfd->mfd_object)), mfd->mfd_mode, mode); - CDEBUG(D_HA, "Change mfd %p mode 0x%x->0x%x\n", - mfd, (unsigned int)mfd->mfd_mode, (unsigned int)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; @@ -608,7 +704,7 @@ static int mdt_mfd_open(struct mdt_thread_info *info, struct mdt_object *p, 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 @@ -621,6 +717,9 @@ static int mdt_mfd_open(struct mdt_thread_info *info, struct mdt_object *p, 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", @@ -628,115 +727,156 @@ static int mdt_mfd_open(struct mdt_thread_info *info, struct mdt_object *p, 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; + repbody->mbo_eadatasize = ma->ma_lmm_size; + if (isdir) + repbody->mbo_valid |= OBD_MD_FLDIREA; + else + 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); + if (rc == 0) { + mdt_ioepoch_open(info, o, created); + repbody->mbo_ioepoch = o->mot_ioepoch; } } else if (flags & MDS_FMODE_EXEC) { - rc = mdt_write_deny(o); + 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) - RETURN(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(med); + if (mfd == NULL) + GOTO(err_out, rc = -ENOMEM); + + /* + * 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; + + /* + * @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 = "LPX64"\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); + /* 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_unlock(&med->med_open_lock); + CDEBUG(D_HA, "orphan mfd not found, fid = "DFID", " + "cookie = "LPX64"\n", + PFID(mdt_object_fid(mfd->mfd_object)), + info->mti_rr.rr_handle->cookie); + } + + 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->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); - 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); - - /* - * @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); - cfs_spin_lock(&med->med_open_lock); - class_handle_unhash(&old_mfd->mfd_handle); - cfs_list_del_init(&old_mfd->mfd_list); - cfs_spin_unlock(&med->med_open_lock); - /* no attr update for that close */ - la->la_valid = 0; - 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; - } - repbody->handle.cookie = mfd->mfd_handle.h_cookie; - - if (req->rq_export->exp_disconnected) { - cfs_spin_lock(&med->med_open_lock); - class_handle_unhash(&mfd->mfd_handle); - cfs_list_del_init(&mfd->mfd_list); - cfs_spin_unlock(&med->med_open_lock); - mdt_mfd_close(info, mfd); - } else { - cfs_spin_lock(&med->med_open_lock); - cfs_list_add(&mfd->mfd_list, &med->med_open_head); - cfs_spin_unlock(&med->med_open_lock); - } + RETURN(rc); - mdt_empty_transno(info); - } else - rc = -ENOMEM; +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 & MDS_FMODE_EXEC) + mdt_write_allow(o); - RETURN(rc); + return rc; } - 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 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); @@ -747,51 +887,41 @@ static int mdt_finish_open(struct mdt_thread_info *info, islnk = S_ISLNK(la->la_mode); mdt_pack_attr2body(info, repbody, la, mdt_object_fid(o)); + /* 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 */ + if (OBD_FAIL_CHECK(OBD_FAIL_MDS_NEGATIVE_POSITIVE)) { + 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); + repbody->mbo_valid &= ~OBD_MD_FLRMTPERM; + repbody->mbo_aclsize = 0; + } else { + repbody->mbo_valid |= OBD_MD_FLRMTPERM; + repbody->mbo_aclsize = sizeof(struct mdt_remote_perm); } } #ifdef CONFIG_FS_POSIX_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; - - 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; - } - } - } + else if (exp_connect_flags(exp) & OBD_CONNECT_ACL) + rc = mdt_pack_acl2body(info, repbody, o, + exp->exp_target_data.ted_nodemap); #endif - if (info->mti_mdt->mdt_opts.mo_mds_capa && - exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA) { + if (info->mti_mdt->mdt_lut.lut_mds_capa && + exp_connect_flags(exp) & OBD_CONNECT_MDS_CAPA) { struct lustre_capa *capa; capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA1); @@ -800,11 +930,11 @@ static int mdt_finish_open(struct mdt_thread_info *info, rc = mo_capa_get(info->mti_env, mdt_object_child(o), capa, 0); if (rc) RETURN(rc); - repbody->valid |= OBD_MD_FLMDSCAPA; + repbody->mbo_valid |= OBD_MD_FLMDSCAPA; } - 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))) { + if (info->mti_mdt->mdt_lut.lut_oss_capa && + exp_connect_flags(exp) & OBD_CONNECT_OSS_CAPA && + S_ISREG(lu_object_attr(&o->mot_obj))) { struct lustre_capa *capa; capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2); @@ -813,20 +943,18 @@ static int mdt_finish_open(struct mdt_thread_info *info, rc = mo_capa_get(info->mti_env, mdt_object_child(o), capa, 0); if (rc) RETURN(rc); - repbody->valid |= OBD_MD_FLOSSCAPA; + repbody->mbo_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. */ - if (islnk || (!isreg && !isdir && - (req->rq_export->exp_connect_flags & OBD_CONNECT_NODEVOH))) { - lustre_msg_set_transno(req->rq_repmsg, 0); - RETURN(0); - } - - mdt_set_disposition(info, rep, DISP_OPEN_OPEN); + if (islnk || (!isreg && !isdir && + (exp_connect_flags(req->rq_export) & OBD_CONNECT_NODEVOH))) { + lustre_msg_set_transno(req->rq_repmsg, 0); + RETURN(0); + } /* * We need to return the existing object's fid back, so it is done here, @@ -849,39 +977,39 @@ static int mdt_finish_open(struct mdt_thread_info *info, RETURN(-EAGAIN); } - mfd = NULL; - if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) { - cfs_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); - if (mfd->mfd_xid == req->rq_xid) { - break; - } - mfd = NULL; - } - cfs_spin_unlock(&med->med_open_lock); + mfd = NULL; + if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) { + spin_lock(&med->med_open_lock); + 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; } - RETURN(0); - } - } + mdt_set_disposition(info, rep, DISP_OPEN_OPEN); + RETURN(0); + } + } - rc = mdt_mfd_open(info, p, o, flags, created); - RETURN(rc); -} + rc = mdt_mfd_open(info, p, o, flags, created, rep); + if (!rc) + mdt_set_disposition(info, rep, DISP_OPEN_OPEN); -extern void mdt_req_from_lcd(struct ptlrpc_request *req, - struct lsd_client_data *lcd); + RETURN(rc); +} void mdt_reconstruct_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) @@ -894,7 +1022,7 @@ void mdt_reconstruct_open(struct mdt_thread_info *info, 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; @@ -906,13 +1034,7 @@ void mdt_reconstruct_open(struct mdt_thread_info *info, 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; - if (ma->ma_lmm_size > 0) - ma->ma_need |= MA_LOV; - + ma->ma_need = MA_INODE | MA_HSM; ma->ma_valid = 0; mdt_req_from_lcd(req, lcd); @@ -943,39 +1065,49 @@ void mdt_reconstruct_open(struct mdt_thread_info *info, 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) { - struct md_object *next; - - mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA); - next = mdt_object_child(child); - rc = mo_attr_get(env, next, 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_set_capainfo(info, 1, rr->rr_fid2, + BYPASS_CAPA); + 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); @@ -992,11 +1124,9 @@ out: LASSERT(ergo(rc < 0, lustre_msg_get_transno(req->rq_repmsg) == 0)); } -static 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) { - const struct lu_env *env = info->mti_env; - __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; @@ -1007,46 +1137,298 @@ static int mdt_open_by_fid(struct mdt_thread_info* info, 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 = mo_attr_get(env, mdt_object_child(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); } -static int mdt_open_anon_by_fid(struct mdt_thread_info *info, - struct ldlm_reply *rep, - struct mdt_lock_handle *lhc) +/* lock object for open */ +static int mdt_object_open_lock(struct mdt_thread_info *info, + struct mdt_object *obj, + 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 acq_lease = !!(open_flags & MDS_OPEN_LEASE); + bool try_layout = false; + bool create_layout = false; + int rc = 0; + ENTRY; + + *ibits = 0; + mdt_lock_handle_init(lhc); + + if (req_is_replay(mdt_info_req(info))) + RETURN(0); + + 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; + if (exp_connect_layout(info->mti_exp) && !create_layout && + ma->ma_need & MA_LOV) + try_layout = true; + } + + 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("Request lease for file:"DFID ", but open lock " + "is missed, open_flags = "LPO64".\n", + PFID(mdt_object_fid(obj)), open_flags); + 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. */ + if (!OBD_FAIL_CHECK(OBD_FAIL_MDS_NO_LL_OPEN) && try_layout) { + /* return lookup lock to validate inode at the client side, + * this is pretty important otherwise mdt will return layout + * lock for each open. + * 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)) { + *ibits &= ~(MDS_INODELOCK_LAYOUT|MDS_INODELOCK_LOOKUP); + if (*ibits != 0) + rc = mdt_object_lock(info, obj, lhc, *ibits, + MDT_CROSS_LOCK); + } + } else if (*ibits != 0) { + rc = mdt_object_lock(info, obj, lhc, *ibits, MDT_CROSS_LOCK); + } + + 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); + + /* 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", + 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); + + 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); +} + +static void mdt_object_open_unlock(struct mdt_thread_info *info, + struct mdt_object *obj, + struct mdt_lock_handle *lhc, + __u64 ibits, int rc) +{ + __u64 open_flags = info->mti_spec.sp_cr_flags; + 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); + + 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 == -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 || !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; +} + +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; - ldlm_mode_t lm; + int object_locked = 0; + __u64 ibits = 0; ENTRY; - if (md_should_create(flags)) { + if (md_should_create(flags) && !(flags & MDS_OPEN_HAS_EA)) { if (!lu_fid_eq(rr->rr_fid1, rr->rr_fid2)) { parent = mdt_object_find(env, mdt, rr->rr_fid1); if (IS_ERR(parent)) { @@ -1061,41 +1443,46 @@ static int mdt_open_anon_by_fid(struct mdt_thread_info *info, ma->ma_need |= MA_PFID; } - o = mdt_object_find(env, 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(env, mdt_object_child(o), ma); - if (rc) - GOTO(out, rc); + 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); + } + + 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); + + /* 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 = 1; + if (rc) + GOTO(out_unlock, rc); + } if (ma->ma_valid & MA_PFID) { parent = mdt_object_find(env, mdt, &ma->ma_pfid); @@ -1108,31 +1495,32 @@ static int mdt_open_anon_by_fid(struct mdt_thread_info *info, } } - if (flags & MDS_OPEN_LOCK) - mdt_set_disposition(info, rep, DISP_OPEN_LOCK); rc = mdt_finish_open(info, parent, o, flags, 0, rep); - - if (!(flags & MDS_OPEN_LOCK) || rc) - mdt_object_unlock(info, o, lhc, 1); - - GOTO(out, rc); + if (!rc) { + 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_unlock, rc); + +out_unlock: + if (object_locked) + mdt_object_open_unlock(info, o, lhc, ibits, rc); out: - 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) */ -static 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; @@ -1143,35 +1531,40 @@ static int mdt_cross_open(struct mdt_thread_info* info, 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 = mo_attr_get(info->mti_env, mdt_object_child(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"); - 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"); - + 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?\n"); rc = -EFAULT; + } 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); + mdt_set_capainfo(info, 0, fid, BYPASS_CAPA); + rc = mdt_attr_get_complex(info, o, ma); + if (rc != 0) + GOTO(out, rc); + + 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); @@ -1189,26 +1582,21 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) 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 = 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; OBD_FAIL_TIMEOUT_ORSET(OBD_FAIL_MDS_PAUSE_OPEN, OBD_FAIL_ONCE, (obd_timeout + 1) / 4); - mdt_counter_incr(req->rq_export, LPROC_MDT_OPEN); + 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); @@ -1224,39 +1612,50 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) 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) || - (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); - - if (result != -ENOENT) { - if (req->rq_export->exp_libclient && - create_flags&MDS_OPEN_HAS_EA) - GOTO(out, result = 0); - GOTO(out, result); - } - /* - * We didn't find the correct object, so we need to re-create it - * via a regular replay. - */ - if (!(create_flags & MDS_OPEN_CREAT)) { - DEBUG_REQ(D_ERROR, req, - "OPEN & CREAT not in open replay."); - GOTO(out, result = -EFAULT); - } - CDEBUG(D_INFO, "Open replay did find object, continue as " - "regular open\n"); - } else if (rr->rr_namelen == 0 && !info->mti_cross_ref && - create_flags & MDS_OPEN_LOCK) { - result = mdt_open_anon_by_fid(info, ldlm_rep, lhc); - GOTO(out, result); - } + CDEBUG(D_INODE, "I am going to open "DFID"/("DNAME"->"DFID") " + "cr_flag="LPO64" 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); + + if (result != -ENOENT) { + if (req->rq_export->exp_libclient && + create_flags & MDS_OPEN_HAS_EA) + GOTO(out, result = 0); + GOTO(out, result); + } + /* We didn't find the correct object, so we need to re-create it + * via a regular replay. */ + if (!(create_flags & MDS_OPEN_CREAT)) { + DEBUG_REQ(D_ERROR, req, + "OPEN & CREAT not in open replay/by_fid."); + GOTO(out, result = -EFAULT); + } + CDEBUG(D_INFO, "No object(1), continue as regular open.\n"); + } 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 < 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)); @@ -1264,17 +1663,13 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) 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); + mdt_lock_pdo_init(lh, + (create_flags & MDS_OPEN_CREAT) ? LCK_PW : LCK_PR, + &rr->rr_name); parent = mdt_object_find_lock(info, rr->rr_fid1, lh, MDS_INODELOCK_UPDATE); @@ -1288,12 +1683,13 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) 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); @@ -1310,18 +1706,23 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) } 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)); - } else { - /* - * Check for O_EXCL is moved to the mdt_finish_open(), we need to - * return FID back in that case. - */ - mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS); - } - - child = mdt_object_find(info->mti_env, mdt, child_fid); + /* In the function below, .hs_keycmp resolves to + * lu_obj_hop_keycmp() */ + /* coverity[overrun-buffer-val] */ + child = mdt_object_new(info->mti_env, mdt, child_fid); + } else { + /* + * Check for O_EXCL is moved to the mdt_finish_open(), we need to + * return FID back in that case. + */ + mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS); + child = mdt_object_find(info->mti_env, mdt, child_fid); + } if (IS_ERR(child)) GOTO(out_parent, result = PTR_ERR(child)); @@ -1332,12 +1733,16 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) mdt_set_capainfo(info, 1, child_fid, BYPASS_CAPA); if (result == -ENOENT) { - /* save versions in reply */ - mdt_version_get_save(info, parent, 0); - mdt_version_get_save(info, child, 1); + /* 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); - /* 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); @@ -1353,28 +1758,30 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) 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; } else { - /* We have to get attr & lov ea for this object */ - result = mo_attr_get(info->mti_env, mdt_object_child(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 @@ -1382,22 +1789,10 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) */ 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 { + 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); @@ -1405,72 +1800,353 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc) MDS_INODELOCK_LOOKUP, MDT_CROSS_LOCK); } - repbody->fid1 = *mdt_object_fid(child); - repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS); + repbody->mbo_fid1 = *mdt_object_fid(child); + repbody->mbo_valid |= (OBD_MD_FLID | OBD_MD_MDS); if (rc != 0) result = rc; + else + result = -MDT_EREMOTE_OPEN; GOTO(out_child, result); - } - } - - 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) && create_flags & MDS_OPEN_LOCK) { - ldlm_mode_t lm; - - 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); - } + } 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); + } } - /* Try to open it now. */ - 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; + 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; + /* openlock will be released if mdt_finish_open failed */ + mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_LOCK); + + 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; +out_child_unlock: + if (object_locked) + mdt_object_open_unlock(info, child, lhc, ibits, result); out_child: - 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\n", + 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="LPU64 + " and on-disk="LPU64"\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); + + /* Hopefully it's not used in this call path */ + orp_ma = &info->mti_u.som.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, MDT_LOCAL_LOCK); + 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\n"); + mdt_object_put(info->mti_env, orphan); + +out_unlock: + up_write(&o->mot_open_sem); + + if (rc == 0) { /* already released */ + struct mdt_body *repbody; + repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY); + LASSERT(repbody != NULL); + repbody->mbo_valid |= OBD_MD_FLRELEASED; + } + +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 | \ @@ -1488,11 +2164,21 @@ int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd) 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 (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 ((mode & FMODE_WRITE) || (mode & MDS_FMODE_TRUNC)) { mdt_write_put(o); ret = mdt_ioepoch_close(info, o); @@ -1513,11 +2199,15 @@ int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd) rc = mo_attr_set(info->mti_env, next, ma); } + /* 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; ma->ma_valid &= ~MA_INODE; if (!MFD_CLOSED(mode)) - rc = mo_close(info->mti_env, next, ma); + rc = mo_close(info->mti_env, next, ma, mode); if (ret == MDT_IOEPOCH_GETATTR || ret == MDT_IOEPOCH_OPENED) { struct mdt_export_data *med; @@ -1528,12 +2218,12 @@ int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd) mdt_mfd_set_mode(mfd, ret == MDT_IOEPOCH_OPENED ? MDS_FMODE_EPOCH : MDS_FMODE_SOM); - LASSERT(mdt_info_req(info)); - med = &mdt_info_req(info)->rq_export->exp_mdt_data; - cfs_spin_lock(&med->med_open_lock); - cfs_list_add(&mfd->mfd_list, &med->med_open_head); - class_handle_hash_back(&mfd->mfd_handle); - cfs_spin_unlock(&med->med_open_lock); + LASSERT(mdt_info_req(info)); + med = &mdt_info_req(info)->rq_export->exp_mdt_data; + spin_lock(&med->med_open_lock); + list_add(&mfd->mfd_list, &med->med_open_head); + class_handle_hash_back(&mfd->mfd_handle); + spin_unlock(&med->med_open_lock); if (ret == MDT_IOEPOCH_OPENED) { ret = 0; @@ -1543,41 +2233,54 @@ int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd) "needed on "DFID"\n", PFID(mdt_object_fid(o))); } } else { - mdt_mfd_free(mfd); - mdt_object_put(info->mti_env, o); - } - - RETURN(rc ? rc : ret); + /* adjust open and lease count */ + if (mode & MDS_OPEN_LEASE) { + LASSERT(atomic_read(&o->mot_lease_count) > 0); + atomic_dec(&o->mot_lease_count); + } + 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); + } + + RETURN(rc ? rc : ret); } -int mdt_close(struct mdt_thread_info *info) +int mdt_close(struct tgt_session_info *tsi) { + struct mdt_thread_info *info = tsi2mdt_info(tsi); + struct ptlrpc_request *req = tgt_ses_req(tsi); struct mdt_export_data *med; struct mdt_file_data *mfd; struct mdt_object *o; 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->rq_export, 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)); + 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) + GOTO(out, rc = err_serious(rc)); LASSERT(info->mti_ioepoch); + /* 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_shrink_reply(info); - RETURN(lustre_msg_get_status(req->rq_repmsg)); + mdt_fix_reply(info); + mdt_exit_ucred(info); + GOTO(out, rc = lustre_msg_get_status(req->rq_repmsg)); } /* Continue to close handle even if we can not pack reply */ @@ -1589,32 +2292,28 @@ int mdt_close(struct mdt_thread_info *info) 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; + repbody->mbo_eadatasize = 0; + repbody->mbo_aclsize = 0; } else { rc = err_serious(rc); } med = &req->rq_export->exp_mdt_data; - cfs_spin_lock(&med->med_open_lock); - mfd = mdt_handle2mfd(info, &info->mti_ioepoch->handle); - if (mdt_mfd_closed(mfd)) { - cfs_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); - cfs_spin_unlock(&med->med_open_lock); + spin_lock(&med->med_open_lock); + mfd = mdt_handle2mfd(med, &info->mti_ioepoch->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 = "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); + list_del_init(&mfd->mfd_list); + spin_unlock(&med->med_open_lock); /* Do not lose object before last unlink. */ o = mfd->mfd_object; @@ -1622,19 +2321,24 @@ int mdt_close(struct mdt_thread_info *info) ret = mdt_mfd_close(info, mfd); if (repbody != NULL) rc = mdt_handle_last_unlink(info, o, ma); - mdt_empty_transno(info); + mdt_empty_transno(info, rc); mdt_object_put(info->mti_env, o); } - if (repbody != NULL) - mdt_shrink_reply(info); + if (repbody != NULL) { + mdt_client_compatibility(info); + rc = mdt_fix_reply(info); + } - if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CLOSE_PACK)) - RETURN(err_serious(-ENOMEM)); + mdt_exit_ucred(info); + if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CLOSE_PACK)) + GOTO(out, rc = 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); + 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); } /** @@ -1645,37 +2349,40 @@ int mdt_close(struct mdt_thread_info *info) * 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) +int mdt_done_writing(struct tgt_session_info *tsi) { - struct ptlrpc_request *req = mdt_info_req(info); + struct ptlrpc_request *req = tgt_ses_req(tsi); + struct mdt_thread_info *info = tsi2mdt_info(tsi); 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)); - - 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)) - RETURN(lustre_msg_get_status(req->rq_repmsg)); - - med = &info->mti_exp->exp_mdt_data; - cfs_spin_lock(&med->med_open_lock); - mfd = mdt_handle2mfd(info, &info->mti_ioepoch->handle); - if (mfd == NULL) { - cfs_spin_unlock(&med->med_open_lock); + rc = req_capsule_server_pack(tsi->tsi_pill); + if (rc) + GOTO(out, rc = err_serious(rc)); + + repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_MDT_BODY); + repbody->mbo_eadatasize = 0; + repbody->mbo_aclsize = 0; + + /* Done Writing may come with the Size-on-MDS update. Unpack it. */ + rc = mdt_close_unpack(info); + if (rc) + GOTO(out, rc = err_serious(rc)); + + if (mdt_check_resent(info, mdt_reconstruct_generic, NULL)) { + mdt_exit_ucred(info); + GOTO(out, rc = lustre_msg_get_status(req->rq_repmsg)); + } + + med = &info->mti_exp->exp_mdt_data; + spin_lock(&med->med_open_lock); + mfd = mdt_handle2mfd(med, &info->mti_ioepoch->handle, + req_is_replay(req)); + 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), @@ -1683,18 +2390,19 @@ int mdt_done_writing(struct mdt_thread_info *info) info->mti_ioepoch->ioepoch); /* If this is a replay, reconstruct the transno. */ if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) { - mdt_empty_transno(info); - RETURN(info->mti_ioepoch->flags & MF_SOM_AU ? - -EAGAIN : 0); - } - RETURN(-ESTALE); - } - - 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); - cfs_spin_unlock(&med->med_open_lock); + 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); + 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; @@ -1702,12 +2410,16 @@ int mdt_done_writing(struct mdt_thread_info *info) 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) - RETURN(-ENOMEM); + 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); - RETURN(rc); + mdt_empty_transno(info, rc); +error_ucred: + mdt_exit_ucred(info); +out: + mdt_thread_info_fini(info); + RETURN(rc); }