X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=sidebyside;f=lustre%2Fmdt%2Fmdt_recovery.c;h=9102eaa99431eccf227c6e82ac98ece6a1c07318;hb=6125dec0a2b07822ef8149ff49c02d95df997668;hp=ce27e1098484d64d644b076836857c34c8afc789;hpb=69a3513021212ed1eb8823a50f80853e22e607b3;p=fs%2Flustre-release.git diff --git a/lustre/mdt/mdt_recovery.c b/lustre/mdt/mdt_recovery.c index ce27e10..9102eaa 100644 --- a/lustre/mdt/mdt_recovery.c +++ b/lustre/mdt/mdt_recovery.c @@ -1,41 +1,50 @@ -/* -*- 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. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). * - * linux/mdt/mdt_recovery.c - * Lustre Metadata Target (mdt) recovery-related methods + * 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 * - * Copyright (C) 2002-2006 Cluster File Systems, Inc. - * Author: Huang Hua - * Author: Pershin Mike + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. * - * This file is part of the Lustre file system, http://www.lustre.org - * Lustre is a trademark of Cluster File Systems, Inc. + * Copyright (c) 2011, 2013, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. * - * You may have signed or agreed to another license before downloading - * this software. If so, you are bound by the terms and conditions - * of that agreement, and the following does not apply to you. See the - * LICENSE file included with this distribution for more information. + * lustre/mdt/mdt_recovery.c * - * If you did not agree to a different license, then this copy of Lustre - * is open source software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. + * Lustre Metadata Target (mdt) recovery-related methods * - * In either case, Lustre is distributed in the hope that it will be - * useful, but WITHOUT ANY WARRANTY; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * license text for more details. + * Author: Huang Hua + * Author: Pershin Mike */ -#ifndef EXPORT_SYMTAB -# define EXPORT_SYMTAB -#endif + #define DEBUG_SUBSYSTEM S_MDS #include "mdt_internal.h" -static int mdt_server_data_update(const struct lu_env *env, - struct mdt_device *mdt); - struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len) { struct lu_buf *buf; @@ -62,283 +71,42 @@ const struct lu_buf *mdt_buf_const(const struct lu_env *env, return buf; } -int mdt_record_read(const struct lu_env *env, - struct dt_object *dt, struct lu_buf *buf, loff_t *pos) -{ - int rc; - - LASSERTF(dt != NULL, "dt is NULL when we want to read record\n"); - - rc = dt->do_body_ops->dbo_read(env, dt, buf, pos, BYPASS_CAPA); - - if (rc == buf->lb_len) - rc = 0; - else if (rc >= 0) - rc = -EFAULT; - return rc; -} - -int mdt_record_write(const struct lu_env *env, - struct dt_object *dt, const struct lu_buf *buf, - loff_t *pos, struct thandle *th) -{ - int rc; - - LASSERTF(dt != NULL, "dt is NULL when we want to write record\n"); - LASSERT(th != NULL); - rc = dt->do_body_ops->dbo_write(env, dt, buf, pos, th, BYPASS_CAPA); - if (rc == buf->lb_len) - rc = 0; - else if (rc >= 0) - rc = -EFAULT; - return rc; -} -/* only one record write */ - -enum { - MDT_TXN_LAST_RCVD_WRITE_CREDITS = 3 -}; - -struct thandle* mdt_trans_start(const struct lu_env *env, - struct mdt_device *mdt, int credits) -{ - struct mdt_thread_info *mti; - struct txn_param *p; - - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - p = &mti->mti_txn_param; - txn_param_init(p, credits); - - /* export can require sync operations */ - if (mti->mti_exp != NULL) - p->tp_sync = mti->mti_exp->exp_need_sync; - - return mdt->mdt_bottom->dd_ops->dt_trans_start(env, mdt->mdt_bottom, p); -} - void mdt_trans_stop(const struct lu_env *env, struct mdt_device *mdt, struct thandle *th) { - mdt->mdt_bottom->dd_ops->dt_trans_stop(env, th); + dt_trans_stop(env, mdt->mdt_bottom, th); } -/* last_rcvd handling */ -static inline void msd_le_to_cpu(struct mdt_server_data *buf, - struct mdt_server_data *msd) -{ - memcpy(msd->msd_uuid, buf->msd_uuid, sizeof (msd->msd_uuid)); - msd->msd_last_transno = le64_to_cpu(buf->msd_last_transno); - msd->msd_mount_count = le64_to_cpu(buf->msd_mount_count); - msd->msd_feature_compat = le32_to_cpu(buf->msd_feature_compat); - msd->msd_feature_rocompat = le32_to_cpu(buf->msd_feature_rocompat); - msd->msd_feature_incompat = le32_to_cpu(buf->msd_feature_incompat); - msd->msd_server_size = le32_to_cpu(buf->msd_server_size); - msd->msd_client_start = le32_to_cpu(buf->msd_client_start); - msd->msd_client_size = le16_to_cpu(buf->msd_client_size); -} - -static inline void msd_cpu_to_le(struct mdt_server_data *msd, - struct mdt_server_data *buf) -{ - memcpy(buf->msd_uuid, msd->msd_uuid, sizeof (msd->msd_uuid)); - buf->msd_last_transno = cpu_to_le64(msd->msd_last_transno); - buf->msd_mount_count = cpu_to_le64(msd->msd_mount_count); - buf->msd_feature_compat = cpu_to_le32(msd->msd_feature_compat); - buf->msd_feature_rocompat = cpu_to_le32(msd->msd_feature_rocompat); - buf->msd_feature_incompat = cpu_to_le32(msd->msd_feature_incompat); - buf->msd_server_size = cpu_to_le32(msd->msd_server_size); - buf->msd_client_start = cpu_to_le32(msd->msd_client_start); - buf->msd_client_size = cpu_to_le16(msd->msd_client_size); -} - -static inline void mcd_le_to_cpu(struct mdt_client_data *buf, - struct mdt_client_data *mcd) -{ - memcpy(mcd->mcd_uuid, buf->mcd_uuid, sizeof (mcd->mcd_uuid)); - mcd->mcd_last_transno = le64_to_cpu(buf->mcd_last_transno); - mcd->mcd_last_xid = le64_to_cpu(buf->mcd_last_xid); - mcd->mcd_last_result = le32_to_cpu(buf->mcd_last_result); - mcd->mcd_last_data = le32_to_cpu(buf->mcd_last_data); - mcd->mcd_last_close_transno = le64_to_cpu(buf->mcd_last_close_transno); - mcd->mcd_last_close_xid = le64_to_cpu(buf->mcd_last_close_xid); - mcd->mcd_last_close_result = le32_to_cpu(buf->mcd_last_close_result); -} - -static inline void mcd_cpu_to_le(struct mdt_client_data *mcd, - struct mdt_client_data *buf) -{ - memcpy(buf->mcd_uuid, mcd->mcd_uuid, sizeof (mcd->mcd_uuid)); - buf->mcd_last_transno = cpu_to_le64(mcd->mcd_last_transno); - buf->mcd_last_xid = cpu_to_le64(mcd->mcd_last_xid); - buf->mcd_last_result = cpu_to_le32(mcd->mcd_last_result); - buf->mcd_last_data = cpu_to_le32(mcd->mcd_last_data); - buf->mcd_last_close_transno = cpu_to_le64(mcd->mcd_last_close_transno); - buf->mcd_last_close_xid = cpu_to_le64(mcd->mcd_last_close_xid); - buf->mcd_last_close_result = cpu_to_le32(mcd->mcd_last_close_result); -} - -static inline int mdt_last_rcvd_header_read(const struct lu_env *env, - struct mdt_device *mdt) -{ - struct mdt_thread_info *mti; - int rc; - - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - - mti->mti_off = 0; - rc = mdt_record_read(env, mdt->mdt_last_rcvd, - mdt_buf(env, &mti->mti_msd, sizeof(mti->mti_msd)), - &mti->mti_off); - if (rc == 0) - msd_le_to_cpu(&mti->mti_msd, &mdt->mdt_msd); - - CDEBUG(D_INFO, "read last_rcvd header rc = %d:\n" - "uuid = %s\n" - "last_transno = "LPU64"\n", - rc, mdt->mdt_msd.msd_uuid, - mdt->mdt_msd.msd_last_transno); - return rc; -} - -static inline int mdt_last_rcvd_header_write(const struct lu_env *env, - struct mdt_device *mdt) -{ - struct mdt_thread_info *mti; - struct thandle *th; - int rc; - ENTRY; - - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - - th = mdt_trans_start(env, mdt, MDT_TXN_LAST_RCVD_WRITE_CREDITS); - if (IS_ERR(th)) - RETURN(PTR_ERR(th)); - - mti->mti_off = 0; - msd_cpu_to_le(&mdt->mdt_msd, &mti->mti_msd); - - rc = mdt_record_write(env, mdt->mdt_last_rcvd, - mdt_buf_const(env, &mti->mti_msd, sizeof(mti->mti_msd)), - &mti->mti_off, th); - - mdt_trans_stop(env, mdt, th); - - CDEBUG(D_INFO, "write last_rcvd header rc = %d:\n" - "uuid = %s\nlast_transno = "LPU64"\n", - rc, mdt->mdt_msd.msd_uuid, mdt->mdt_msd.msd_last_transno); - - RETURN(rc); -} - -static int mdt_last_rcvd_read(const struct lu_env *env, - struct mdt_device *mdt, - struct mdt_client_data *mcd, loff_t *off) -{ - struct mdt_thread_info *mti; - struct mdt_client_data *tmp; - int rc; - - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - tmp = &mti->mti_mcd; - rc = mdt_record_read(env, mdt->mdt_last_rcvd, - mdt_buf(env, tmp, sizeof(*tmp)), off); - if (rc == 0) - mcd_le_to_cpu(tmp, mcd); - - CDEBUG(D_INFO, "read mcd @%d rc = %d:\n" - "uuid = %s\n" - "last_transno = "LPU64"\n" - "last_xid = "LPU64"\n" - "last_result = %d\n" - "last_data = %d\n" - "last_close_transno = "LPU64"\n" - "last_close_xid = "LPU64"\n" - "last_close_result = %d\n", - (int)*off - sizeof(*tmp), - rc, - mcd->mcd_uuid, - mcd->mcd_last_transno, - mcd->mcd_last_xid, - mcd->mcd_last_result, - mcd->mcd_last_data, - mcd->mcd_last_close_transno, - mcd->mcd_last_close_xid, - mcd->mcd_last_close_result); - return rc; -} - -static int mdt_last_rcvd_write(const struct lu_env *env, - struct mdt_device *mdt, - struct mdt_client_data *mcd, - loff_t *off, struct thandle *th) -{ - struct mdt_thread_info *mti; - struct mdt_client_data *tmp; - int rc; - - LASSERT(th != NULL); - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - tmp = &mti->mti_mcd; - - mcd_cpu_to_le(mcd, tmp); - - rc = mdt_record_write(env, mdt->mdt_last_rcvd, - mdt_buf_const(env, tmp, sizeof(*tmp)), off, th); - - CDEBUG(D_INFO, "write mcd @%d rc = %d:\n" - "uuid = %s\n" - "last_transno = "LPU64"\n" - "last_xid = "LPU64"\n" - "last_result = %d\n" - "last_data = %d\n" - "last_close_transno = "LPU64"\n" - "last_close_xid = "LPU64"\n" - "last_close_result = %d\n", - (int)*off - sizeof(*tmp), - rc, - mcd->mcd_uuid, - mcd->mcd_last_transno, - mcd->mcd_last_xid, - mcd->mcd_last_result, - mcd->mcd_last_data, - mcd->mcd_last_close_transno, - mcd->mcd_last_close_xid, - mcd->mcd_last_close_result); - return rc; -} - - static int mdt_clients_data_init(const struct lu_env *env, struct mdt_device *mdt, unsigned long last_size) { - struct mdt_server_data *msd = &mdt->mdt_msd; - struct mdt_client_data *mcd = NULL; - struct obd_device *obd = mdt->mdt_md_dev.md_lu_dev.ld_obd; + struct lr_server_data *lsd = &mdt->mdt_lut.lut_lsd; + struct lsd_client_data *lcd; + struct obd_device *obd = mdt2obd_dev(mdt); loff_t off; int cl_idx; int rc = 0; ENTRY; + OBD_ALLOC_PTR(lcd); + if (!lcd) + RETURN(-ENOMEM); + /* When we do a clean MDS shutdown, we save the last_transno into * the header. If we find clients with higher last_transno values * then those clients may need recovery done. */ - LASSERT(atomic_read(&obd->obd_req_replay_clients) == 0); - for (cl_idx = 0, off = msd->msd_client_start; + LASSERT(cfs_atomic_read(&obd->obd_req_replay_clients) == 0); + for (cl_idx = 0, off = lsd->lsd_client_start; off < last_size; cl_idx++) { __u64 last_transno; struct obd_export *exp; + struct mdt_thread_info *mti; - if (!mcd) { - OBD_ALLOC_PTR(mcd); - if (!mcd) - RETURN(-ENOMEM); - } - - off = msd->msd_client_start + - cl_idx * msd->msd_client_size; + off = lsd->lsd_client_start + + cl_idx * lsd->lsd_client_size; - rc = mdt_last_rcvd_read(env, mdt, mcd, &off); + rc = tgt_client_data_read(env, &mdt->mdt_lut, lcd, &off, cl_idx); if (rc) { CERROR("error reading MDS %s idx %d, off %llu: rc %d\n", LAST_RCVD, cl_idx, off, rc); @@ -346,89 +114,99 @@ static int mdt_clients_data_init(const struct lu_env *env, break; /* read error shouldn't cause startup to fail */ } - if (mcd->mcd_uuid[0] == '\0') { + if (lcd->lcd_uuid[0] == '\0') { CDEBUG(D_INFO, "skipping zeroed client at offset %d\n", cl_idx); continue; } - last_transno = mcd_last_transno(mcd); + last_transno = lcd_last_transno(lcd); /* These exports are cleaned up by mdt_obd_disconnect(), so * they need to be set up like real exports as * mdt_obd_connect() does. */ CDEBUG(D_HA, "RCVRNG CLIENT uuid: %s idx: %d lr: "LPU64 - " srv lr: "LPU64" lx: "LPU64"\n", mcd->mcd_uuid, cl_idx, - last_transno, msd->msd_last_transno, - mcd_last_xid(mcd)); + " srv lr: "LPU64" lx: "LPU64"\n", lcd->lcd_uuid, cl_idx, + last_transno, lsd->lsd_last_transno, + lcd_last_xid(lcd)); - exp = class_new_export(obd, (struct obd_uuid *)mcd->mcd_uuid); + exp = class_new_export(obd, (struct obd_uuid *)lcd->lcd_uuid); if (IS_ERR(exp)) { if (PTR_ERR(exp) == -EALREADY) { /* export already exists, zero out this one */ - mcd->mcd_uuid[0] = '\0'; - } else - GOTO(err_client, rc = PTR_ERR(exp)); - } else { - struct mdt_thread_info *mti; - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - LASSERT(mti != NULL); - mti->mti_exp = exp; - exp->exp_mdt_data.med_mcd = mcd; - rc = mdt_client_add(env, mdt, cl_idx); - /* can't fail existing */ - LASSERTF(rc == 0, "rc = %d\n", rc); - mcd = NULL; - spin_lock(&exp->exp_lock); - exp->exp_connecting = 0; - exp->exp_in_recovery = 0; - spin_unlock(&exp->exp_lock); - obd->obd_max_recoverable_clients++; - class_export_put(exp); + CERROR("Duplicate export %s!\n", lcd->lcd_uuid); + continue; + } + GOTO(err_client, rc = PTR_ERR(exp)); } - CDEBUG(D_OTHER, "client at idx %d has last_transno="LPU64"\n", - cl_idx, last_transno); - /* protect __u64 value update */ - spin_lock(&mdt->mdt_transno_lock); - mdt->mdt_last_transno = max(last_transno, - mdt->mdt_last_transno); - spin_unlock(&mdt->mdt_transno_lock); + mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); + LASSERT(mti != NULL); + mti->mti_exp = exp; + /* copy on-disk lcd to the export */ + *exp->exp_target_data.ted_lcd = *lcd; + rc = tgt_client_add(env, exp, cl_idx); + /* can't fail existing */ + LASSERTF(rc == 0, "rc = %d\n", rc); + /* VBR: set export last committed version */ + exp->exp_last_committed = last_transno; + spin_lock(&exp->exp_lock); + exp->exp_connecting = 0; + exp->exp_in_recovery = 0; + spin_unlock(&exp->exp_lock); + obd->obd_max_recoverable_clients++; + class_export_put(exp); + + CDEBUG(D_OTHER, "client at idx %d has last_transno ="LPU64"\n", + cl_idx, last_transno); + /* protect __u64 value update */ + spin_lock(&mdt->mdt_lut.lut_translock); + mdt->mdt_lut.lut_last_transno = max(last_transno, + mdt->mdt_lut.lut_last_transno); + spin_unlock(&mdt->mdt_lut.lut_translock); } err_client: - if (mcd) - OBD_FREE_PTR(mcd); + OBD_FREE_PTR(lcd); RETURN(rc); } static int mdt_server_data_init(const struct lu_env *env, - struct mdt_device *mdt) + struct mdt_device *mdt, + struct lustre_sb_info *lsi) { - struct mdt_server_data *msd = &mdt->mdt_msd; - struct mdt_client_data *mcd = NULL; - struct obd_device *obd = mdt->mdt_md_dev.md_lu_dev.ld_obd; + struct lr_server_data *lsd = &mdt->mdt_lut.lut_lsd; + struct lsd_client_data *lcd = NULL; + struct obd_device *obd = mdt2obd_dev(mdt); struct mdt_thread_info *mti; struct dt_object *obj; struct lu_attr *la; unsigned long last_rcvd_size; + __u32 index; __u64 mount_count; int rc; ENTRY; /* ensure padding in the struct is the correct size */ - CLASSERT(offsetof(struct mdt_server_data, msd_padding) + - sizeof(msd->msd_padding) == LR_SERVER_SIZE); - CLASSERT(offsetof(struct mdt_client_data, mcd_padding) + - sizeof(mcd->mcd_padding) == LR_CLIENT_SIZE); + CLASSERT(offsetof(struct lr_server_data, lsd_padding) + + sizeof(lsd->lsd_padding) == LR_SERVER_SIZE); + CLASSERT(offsetof(struct lsd_client_data, lcd_padding) + + sizeof(lcd->lcd_padding) == LR_CLIENT_SIZE); + + rc = server_name2index(obd->obd_name, &index, NULL); + if (rc < 0) { + CERROR("%s: Can not get index from obd_name: rc = %d\n", + obd->obd_name, rc); + RETURN(rc); + } mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); LASSERT(mti != NULL); la = &mti->mti_attr.ma_attr; - obj = mdt->mdt_last_rcvd; - rc = obj->do_ops->do_attr_get(env, mdt->mdt_last_rcvd, la, BYPASS_CAPA); + obj = mdt->mdt_lut.lut_last_rcvd; + rc = dt_attr_get(env, obj, la, BYPASS_CAPA); if (rc) RETURN(rc); @@ -437,60 +215,103 @@ static int mdt_server_data_init(const struct lu_env *env, if (last_rcvd_size == 0) { LCONSOLE_WARN("%s: new disk, initializing\n", obd->obd_name); - memcpy(msd->msd_uuid, obd->obd_uuid.uuid, - sizeof(msd->msd_uuid)); - msd->msd_last_transno = 0; - msd->msd_mount_count = 0; - msd->msd_server_size = LR_SERVER_SIZE; - msd->msd_client_start = LR_CLIENT_START; - msd->msd_client_size = LR_CLIENT_SIZE; - msd->msd_feature_rocompat = OBD_ROCOMPAT_LOVOBJID; - msd->msd_feature_incompat = OBD_INCOMPAT_MDT | - OBD_INCOMPAT_COMMON_LR; - } else { - LCONSOLE_WARN("%s: used disk, loading\n", obd->obd_name); - rc = mdt_last_rcvd_header_read(env, mdt); + memcpy(lsd->lsd_uuid, obd->obd_uuid.uuid, + sizeof(lsd->lsd_uuid)); + lsd->lsd_last_transno = 0; + lsd->lsd_mount_count = 0; + lsd->lsd_server_size = LR_SERVER_SIZE; + lsd->lsd_client_start = LR_CLIENT_START; + lsd->lsd_client_size = LR_CLIENT_SIZE; + lsd->lsd_feature_compat = OBD_COMPAT_MDT; + lsd->lsd_feature_rocompat = OBD_ROCOMPAT_LOVOBJID; + lsd->lsd_feature_incompat = OBD_INCOMPAT_MDT | + OBD_INCOMPAT_COMMON_LR | + OBD_INCOMPAT_MULTI_OI; + lsd->lsd_osd_index = index; + } else { + LCONSOLE_WARN("%s: used disk, loading\n", obd->obd_name); + rc = tgt_server_data_read(env, &mdt->mdt_lut); if (rc) { CERROR("error reading MDS %s: rc %d\n", LAST_RCVD, rc); GOTO(out, rc); } - if (strcmp(msd->msd_uuid, obd->obd_uuid.uuid) != 0) { + if (strcmp(lsd->lsd_uuid, obd->obd_uuid.uuid) != 0) { LCONSOLE_ERROR_MSG(0x157, "Trying to start OBD %s using" "the wrong disk %s. Were the /dev/ " "assignments rearranged?\n", - obd->obd_uuid.uuid, msd->msd_uuid); + obd->obd_uuid.uuid, lsd->lsd_uuid); GOTO(out, rc = -EINVAL); } + lsd->lsd_feature_compat |= OBD_COMPAT_MDT; + lsd->lsd_feature_incompat |= OBD_INCOMPAT_MDT | + OBD_INCOMPAT_COMMON_LR; + if (lsd->lsd_osd_index != index) { + LCONSOLE_ERROR_MSG(0x157, "%s: index %d in last rcvd is" + "different with the index %d in" + "config log, It might be disk" + "corruption!\n", obd->obd_name, + lsd->lsd_osd_index, index); + GOTO(out, rc = -EINVAL); + } + } + mount_count = lsd->lsd_mount_count; + + if (lsd->lsd_feature_incompat & ~MDT_INCOMPAT_SUPP) { + CERROR("%s: unsupported incompat filesystem feature(s) %x\n", + obd->obd_name, + lsd->lsd_feature_incompat & ~MDT_INCOMPAT_SUPP); + GOTO(out, rc = -EINVAL); + } + if (lsd->lsd_feature_rocompat & ~MDT_ROCOMPAT_SUPP) { + CERROR("%s: unsupported read-only filesystem feature(s) %x\n", + obd->obd_name, + lsd->lsd_feature_rocompat & ~MDT_ROCOMPAT_SUPP); + /* XXX: Do something like remount filesystem read-only */ + GOTO(out, rc = -EINVAL); + } + /** Interop: evict all clients at first boot with 1.8 last_rcvd */ + if (!(lsd->lsd_feature_compat & OBD_COMPAT_20)) { + if (last_rcvd_size > lsd->lsd_client_start) { + LCONSOLE_WARN("Mounting %s at first time on 1.8 FS, " + "remove all clients for interop needs\n", + obd->obd_name); + rc = tgt_truncate_last_rcvd(env, &mdt->mdt_lut, + lsd->lsd_client_start); + if (rc) + GOTO(out, rc); + last_rcvd_size = lsd->lsd_client_start; + } + /** set 2.0 flag to upgrade/downgrade between 1.8 and 2.0 */ + lsd->lsd_feature_compat |= OBD_COMPAT_20; } - mount_count = msd->msd_mount_count; - msd->msd_feature_compat = OBD_COMPAT_MDT; + lsd->lsd_feature_incompat |= OBD_INCOMPAT_FID; - spin_lock(&mdt->mdt_transno_lock); - mdt->mdt_last_transno = msd->msd_last_transno; - spin_unlock(&mdt->mdt_transno_lock); + spin_lock(&mdt->mdt_lut.lut_translock); + mdt->mdt_lut.lut_last_transno = lsd->lsd_last_transno; + spin_unlock(&mdt->mdt_lut.lut_translock); CDEBUG(D_INODE, "========BEGIN DUMPING LAST_RCVD========\n"); CDEBUG(D_INODE, "%s: server last_transno: "LPU64"\n", - obd->obd_name, mdt->mdt_last_transno); + obd->obd_name, mdt->mdt_lut.lut_last_transno); CDEBUG(D_INODE, "%s: server mount_count: "LPU64"\n", obd->obd_name, mount_count + 1); CDEBUG(D_INODE, "%s: server data size: %u\n", - obd->obd_name, msd->msd_server_size); + obd->obd_name, lsd->lsd_server_size); CDEBUG(D_INODE, "%s: per-client data start: %u\n", - obd->obd_name, msd->msd_client_start); + obd->obd_name, lsd->lsd_client_start); CDEBUG(D_INODE, "%s: per-client data size: %u\n", - obd->obd_name, msd->msd_client_size); + obd->obd_name, lsd->lsd_client_size); CDEBUG(D_INODE, "%s: last_rcvd size: %lu\n", obd->obd_name, last_rcvd_size); CDEBUG(D_INODE, "%s: last_rcvd clients: %lu\n", obd->obd_name, - last_rcvd_size <= msd->msd_client_start ? 0 : - (last_rcvd_size - msd->msd_client_start) / - msd->msd_client_size); + last_rcvd_size <= lsd->lsd_client_start ? 0 : + (last_rcvd_size - lsd->lsd_client_start) / + lsd->lsd_client_size); CDEBUG(D_INODE, "========END DUMPING LAST_RCVD========\n"); - if (!msd->msd_server_size || !msd->msd_client_start || - !msd->msd_client_size) { + if (!lsd->lsd_server_size || !lsd->lsd_client_start || + !lsd->lsd_client_size) { CERROR("Bad last_rcvd contents!\n"); GOTO(out, rc = -EINVAL); } @@ -499,263 +320,29 @@ static int mdt_server_data_init(const struct lu_env *env, if (rc) GOTO(err_client, rc); - spin_lock(&mdt->mdt_transno_lock); - /* obd_last_committed is used for compatibility - * with other lustre recovery code */ - obd->obd_last_committed = mdt->mdt_last_transno; - spin_unlock(&mdt->mdt_transno_lock); + spin_lock(&mdt->mdt_lut.lut_translock); + /* obd_last_committed is used for compatibility + * with other lustre recovery code */ + obd->obd_last_committed = mdt->mdt_lut.lut_last_transno; + spin_unlock(&mdt->mdt_lut.lut_translock); - mdt->mdt_mount_count++; - msd->msd_mount_count = mdt->mdt_mount_count; + obd->u.obt.obt_mount_count = mount_count + 1; + obd->u.obt.obt_instance = (__u32)obd->u.obt.obt_mount_count; + lsd->lsd_mount_count = obd->u.obt.obt_mount_count; /* save it, so mount count and last_transno is current */ - rc = mdt_server_data_update(env, mdt); + rc = tgt_server_data_update(env, &mdt->mdt_lut, 0); if (rc) GOTO(err_client, rc); RETURN(0); err_client: - target_recovery_fini(obd); + class_disconnect_exports(obd); out: return rc; } -static int mdt_server_data_update(const struct lu_env *env, - struct mdt_device *mdt) -{ - int rc = 0; - ENTRY; - - CDEBUG(D_SUPER, "MDS mount_count is "LPU64", last_transno is "LPU64"\n", - mdt->mdt_mount_count, mdt->mdt_last_transno); - - spin_lock(&mdt->mdt_transno_lock); - mdt->mdt_msd.msd_last_transno = mdt->mdt_last_transno; - spin_unlock(&mdt->mdt_transno_lock); - - /* - * This may be called from difficult reply handler and - * mdt->mdt_last_rcvd may be NULL that time. - */ - if (mdt->mdt_last_rcvd != NULL) - rc = mdt_last_rcvd_header_write(env, mdt); - RETURN(rc); -} - -void mdt_cb_new_client(const struct mdt_device *mdt, __u64 transno, - void *data, int err) -{ - struct obd_device *obd = mdt->mdt_md_dev.md_lu_dev.ld_obd; - - target_client_add_cb(obd, transno, data, err); -} - -int mdt_client_new(const struct lu_env *env, struct mdt_device *mdt) -{ - unsigned long *bitmap = mdt->mdt_client_bitmap; - struct mdt_thread_info *mti; - struct mdt_export_data *med; - struct mdt_client_data *mcd; - struct mdt_server_data *msd = &mdt->mdt_msd; - struct obd_device *obd = mdt->mdt_md_dev.md_lu_dev.ld_obd; - struct thandle *th; - loff_t off; - int rc; - int cl_idx; - ENTRY; - - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - LASSERT(mti != NULL); - - med = &mti->mti_exp->exp_mdt_data; - mcd = med->med_mcd; - - LASSERT(bitmap != NULL); - if (!strcmp(med->med_mcd->mcd_uuid, obd->obd_uuid.uuid)) - RETURN(0); - - /* the bitmap operations can handle cl_idx > sizeof(long) * 8, so - * there's no need for extra complication here - */ - spin_lock(&mdt->mdt_client_bitmap_lock); - cl_idx = find_first_zero_bit(bitmap, LR_MAX_CLIENTS); - if (cl_idx >= LR_MAX_CLIENTS || - OBD_FAIL_CHECK(OBD_FAIL_MDS_CLIENT_ADD)) { - CERROR("no room for %u clients - fix LR_MAX_CLIENTS\n", - cl_idx); - spin_unlock(&mdt->mdt_client_bitmap_lock); - RETURN(-EOVERFLOW); - } - set_bit(cl_idx, bitmap); - spin_unlock(&mdt->mdt_client_bitmap_lock); - - CDEBUG(D_INFO, "client at idx %d with UUID '%s' added\n", - cl_idx, med->med_mcd->mcd_uuid); - - med->med_lr_idx = cl_idx; - med->med_lr_off = msd->msd_client_start + - (cl_idx * msd->msd_client_size); - init_mutex(&med->med_mcd_lock); - - LASSERTF(med->med_lr_off > 0, "med_lr_off = %llu\n", med->med_lr_off); - /* write new client data */ - off = med->med_lr_off; - th = mdt_trans_start(env, mdt, MDT_TXN_LAST_RCVD_WRITE_CREDITS); - if (IS_ERR(th)) - RETURN(PTR_ERR(th)); - - /* until this operations will be committed the sync is needed for this - * export */ - mdt_trans_add_cb(th, mdt_cb_new_client, mti->mti_exp); - spin_lock(&mti->mti_exp->exp_lock); - mti->mti_exp->exp_need_sync = 1; - spin_unlock(&mti->mti_exp->exp_lock); - - rc = mdt_last_rcvd_write(env, mdt, mcd, &off, th); - CDEBUG(D_INFO, "wrote client mcd at idx %u off %llu (len %u)\n", - cl_idx, med->med_lr_off, sizeof(*mcd)); - mdt_trans_stop(env, mdt, th); - - RETURN(rc); -} - -/* Add client data to the MDS. We use a bitmap to locate a free space - * in the last_rcvd file if cl_off is -1 (i.e. a new client). - * Otherwise, we just have to read the data from the last_rcvd file and - * we know its offset. - * - * It should not be possible to fail adding an existing client - otherwise - * mdt_init_server_data() callsite needs to be fixed. - */ -int mdt_client_add(const struct lu_env *env, - struct mdt_device *mdt, int cl_idx) -{ - struct mdt_thread_info *mti; - struct mdt_export_data *med; - unsigned long *bitmap = mdt->mdt_client_bitmap; - struct obd_device *obd = mdt->mdt_md_dev.md_lu_dev.ld_obd; - struct mdt_server_data *msd = &mdt->mdt_msd; - int rc = 0; - ENTRY; - - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - LASSERT(mti != NULL); - - med = &mti->mti_exp->exp_mdt_data; - - LASSERT(bitmap != NULL); - LASSERTF(cl_idx >= 0, "%d\n", cl_idx); - - if (!strcmp(med->med_mcd->mcd_uuid, obd->obd_uuid.uuid)) - RETURN(0); - - spin_lock(&mdt->mdt_client_bitmap_lock); - if (test_and_set_bit(cl_idx, bitmap)) { - CERROR("MDS client %d: bit already set in bitmap!!\n", - cl_idx); - LBUG(); - } - spin_unlock(&mdt->mdt_client_bitmap_lock); - - CDEBUG(D_INFO, "client at idx %d with UUID '%s' added\n", - cl_idx, med->med_mcd->mcd_uuid); - - med->med_lr_idx = cl_idx; - med->med_lr_off = msd->msd_client_start + - (cl_idx * msd->msd_client_size); - init_mutex(&med->med_mcd_lock); - - LASSERTF(med->med_lr_off > 0, "med_lr_off = %llu\n", med->med_lr_off); - - RETURN(rc); -} - -int mdt_client_del(const struct lu_env *env, struct mdt_device *mdt) -{ - struct mdt_thread_info *mti; - struct mdt_export_data *med; - struct mdt_client_data *mcd; - struct obd_device *obd = mdt->mdt_md_dev.md_lu_dev.ld_obd; - struct thandle *th; - loff_t off; - int rc = 0; - ENTRY; - - mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); - LASSERT(mti != NULL); - - med = &mti->mti_exp->exp_mdt_data; - mcd = med->med_mcd; - if (!mcd) - RETURN(0); - - /* XXX: If mcd_uuid were a real obd_uuid, I could use obd_uuid_equals */ - if (!strcmp(med->med_mcd->mcd_uuid, obd->obd_uuid.uuid)) - GOTO(free, 0); - - CDEBUG(D_INFO, "freeing client at idx %u, offset %lld\n", - med->med_lr_idx, med->med_lr_off); - - off = med->med_lr_off; - - /* - * Don't clear med_lr_idx here as it is likely also unset. At worst we - * leak a client slot that will be cleaned on the next recovery. - */ - if (off <= 0) { - CERROR("client idx %d has offset %lld\n", - med->med_lr_idx, off); - GOTO(free, rc = -EINVAL); - } - - /* - * Clear the bit _after_ zeroing out the client so we don't race with - * mdt_client_add and zero out new clients. - */ - if (!test_bit(med->med_lr_idx, mdt->mdt_client_bitmap)) { - CERROR("MDT client %u: bit already clear in bitmap!!\n", - med->med_lr_idx); - LBUG(); - } - - /* - * This may be called from difficult reply handler path and - * mdt->mdt_last_rcvd may be NULL that time. - */ - if (mdt->mdt_last_rcvd != NULL) { - th = mdt_trans_start(env, mdt, MDT_TXN_LAST_RCVD_WRITE_CREDITS); - if (IS_ERR(th)) - GOTO(free, rc = PTR_ERR(th)); - - mutex_down(&med->med_mcd_lock); - memset(mcd, 0, sizeof *mcd); - - rc = mdt_last_rcvd_write(env, mdt, mcd, &off, th); - mutex_up(&med->med_mcd_lock); - mdt_trans_stop(env, mdt, th); - } - - CDEBUG(rc == 0 ? D_INFO : D_ERROR, "Zeroing out client idx %u in " - "%s rc %d\n", med->med_lr_idx, LAST_RCVD, rc); - - spin_lock(&mdt->mdt_client_bitmap_lock); - clear_bit(med->med_lr_idx, mdt->mdt_client_bitmap); - spin_unlock(&mdt->mdt_client_bitmap_lock); - - /* - * Make sure the server's last_transno is up to date. Do this after the - * client is freed so we know all the client's transactions have been - * committed. - */ - mdt_server_data_update(env, mdt); - EXIT; -free: - OBD_FREE_PTR(mcd); - med->med_mcd = NULL; - return 0; -} - /* * last_rcvd & last_committed update callbacks */ @@ -764,76 +351,158 @@ static int mdt_last_rcvd_update(struct mdt_thread_info *mti, { struct mdt_device *mdt = mti->mti_mdt; struct ptlrpc_request *req = mdt_info_req(mti); - struct mdt_export_data *med; - struct mdt_client_data *mcd; + struct tg_export_data *ted; + struct lsd_client_data *lcd; loff_t off; int err; __s32 rc = th->th_result; - __u64 *transno_p; ENTRY; LASSERT(req); LASSERT(req->rq_export); LASSERT(mdt); - med = &req->rq_export->exp_mdt_data; - LASSERT(med); - mcd = med->med_mcd; - /* if the export has already been failed, we have no last_rcvd slot */ - if (req->rq_export->exp_failed) { + ted = &req->rq_export->exp_target_data; + LASSERT(ted); + + mutex_lock(&ted->ted_lcd_lock); + lcd = ted->ted_lcd; + /* if the export has already been disconnected, we have no last_rcvd + * slot, update server data with latest transno then */ + if (lcd == NULL) { + mutex_unlock(&ted->ted_lcd_lock); CWARN("commit transaction for disconnected client %s: rc %d\n", req->rq_export->exp_client_uuid.uuid, rc); - if (rc == 0) - rc = -ENOTCONN; - RETURN(rc); + err = tgt_server_data_write(mti->mti_env, &mdt->mdt_lut, th); + RETURN(err); } - off = med->med_lr_off; - mutex_down(&med->med_mcd_lock); + off = ted->ted_lr_off; + LASSERT(ergo(mti->mti_transno == 0, rc != 0)); if (lustre_msg_get_opc(req->rq_reqmsg) == MDS_CLOSE || lustre_msg_get_opc(req->rq_reqmsg) == MDS_DONE_WRITING) { - transno_p = &mcd->mcd_last_close_transno; - mcd->mcd_last_close_xid = req->rq_xid; - mcd->mcd_last_close_result = rc; + if (mti->mti_transno != 0) { + if (lcd->lcd_last_close_transno > mti->mti_transno) { + CERROR("Trying to overwrite bigger transno:" + "on-disk: "LPU64", new: "LPU64" " + "replay: %d. see LU-617.\n", + lcd->lcd_last_close_transno, + mti->mti_transno, req_is_replay(req)); + if (req_is_replay(req)) { + spin_lock(&req->rq_export->exp_lock); + req->rq_export->exp_vbr_failed = 1; + spin_unlock(&req->rq_export->exp_lock); + } + mutex_unlock(&ted->ted_lcd_lock); + RETURN(req_is_replay(req) ? -EOVERFLOW : 0); + } + lcd->lcd_last_close_transno = mti->mti_transno; + } + lcd->lcd_last_close_xid = req->rq_xid; + lcd->lcd_last_close_result = rc; } else { - transno_p = &mcd->mcd_last_transno; - mcd->mcd_last_xid = req->rq_xid; - mcd->mcd_last_result = rc; + /* 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 (mti->mti_transno != 0) { + if (lcd->lcd_last_transno > mti->mti_transno) { + CERROR("Trying to overwrite bigger transno:" + "on-disk: "LPU64", new: "LPU64" " + "replay: %d. see LU-617.\n", + lcd->lcd_last_transno, + mti->mti_transno, req_is_replay(req)); + if (req_is_replay(req)) { + spin_lock(&req->rq_export->exp_lock); + req->rq_export->exp_vbr_failed = 1; + spin_unlock(&req->rq_export->exp_lock); + } + mutex_unlock(&ted->ted_lcd_lock); + RETURN(req_is_replay(req) ? -EOVERFLOW : 0); + } + lcd->lcd_last_transno = mti->mti_transno; + } + lcd->lcd_last_xid = req->rq_xid; + lcd->lcd_last_result = rc; /*XXX: save intent_disposition in mdt_thread_info? * also there is bug - intent_dispostion is __u64, * see struct ldlm_reply->lock_policy_res1; */ - mcd->mcd_last_data = mti->mti_opdata; + lcd->lcd_last_data = mti->mti_opdata; } - /* - * When we store zero transno in mcd we can lost last transno value - * because mcd contains 0, but msd is not yet written - * The server data should be updated also if the latest - * transno is rewritten by zero. See the bug 11125 for details. - */ - if (mti->mti_transno == 0 && - *transno_p == mdt->mdt_last_transno) - mdt_server_data_update(mti->mti_env, mdt); - - *transno_p = mti->mti_transno; - - if (off <= 0) { - CERROR("client idx %d has offset %lld\n", med->med_lr_idx, off); - err = -EINVAL; - } else { - err = mdt_last_rcvd_write(mti->mti_env, mdt, mcd, &off, th); - } - mutex_up(&med->med_mcd_lock); - RETURN(err); + if (exp_connect_flags(mti->mti_exp) & OBD_CONNECT_LIGHTWEIGHT) { + /* Although lightweight (LW) connections have no slot in + * last_rcvd, we still want to maintain the in-memory + * lsd_client_data structure in order to properly handle reply + * reconstruction. */ + struct lu_target *tg = &mdt->mdt_lut; + bool update = false; + + mutex_unlock(&ted->ted_lcd_lock); + err = 0; + + /* All operations performed by LW clients are synchronous and + * we store the committed transno in the last_rcvd header */ + spin_lock(&tg->lut_translock); + if (mti->mti_transno > tg->lut_lsd.lsd_last_transno) { + tg->lut_lsd.lsd_last_transno = mti->mti_transno; + update = true; + } + spin_unlock(&tg->lut_translock); + + if (update) + err = tgt_server_data_write(mti->mti_env, tg, th); + } else if (off <= 0) { + CERROR("%s: client idx %d has offset %lld\n", + mdt2obd_dev(mdt)->obd_name, ted->ted_lr_idx, off); + mutex_unlock(&ted->ted_lcd_lock); + err = -EINVAL; + } else { + err = tgt_client_data_write(mti->mti_env, &mdt->mdt_lut, lcd, + &off, th); + mutex_unlock(&ted->ted_lcd_lock); + } + RETURN(err); } extern struct lu_context_key mdt_thread_key; /* add credits for last_rcvd update */ static int mdt_txn_start_cb(const struct lu_env *env, - struct txn_param *param, void *cookie) + struct thandle *th, void *cookie) { - param->tp_credits += MDT_TXN_LAST_RCVD_WRITE_CREDITS; - return 0; + struct mdt_device *mdt = cookie; + struct mdt_thread_info *mti; + int rc; + ENTRY; + + mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); + + LASSERT(mdt->mdt_lut.lut_last_rcvd); + if (mti->mti_exp == NULL) + RETURN(0); + + rc = dt_declare_record_write(env, mdt->mdt_lut.lut_last_rcvd, + sizeof(struct lsd_client_data), + mti->mti_exp->exp_target_data.ted_lr_off, + th); + if (rc) + return rc; + + rc = dt_declare_record_write(env, mdt->mdt_lut.lut_last_rcvd, + sizeof(struct lr_server_data), 0, th); + if (rc) + return rc; + + /* we probably should not set local transno to the remote object + * on another storage, What about VBR on remote object? XXX */ + if (mti->mti_mos != NULL && !mdt_object_remote(mti->mti_mos)) + rc = dt_declare_version_set(env, mdt_obj2dt(mti->mti_mos), th); + + return rc; } /* Update last_rcvd records with latests transaction data */ @@ -841,99 +510,70 @@ static int mdt_txn_stop_cb(const struct lu_env *env, struct thandle *txn, void *cookie) { struct mdt_device *mdt = cookie; - struct mdt_txn_info *txi; struct mdt_thread_info *mti; struct ptlrpc_request *req; - /* transno in two contexts - for commit_cb and for thread */ - txi = lu_context_key_get(&txn->th_ctx, &mdt_txn_key); mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key); req = mdt_info_req(mti); - if (mti->mti_mdt == NULL || req == NULL || mti->mti_no_need_trans) { - txi->txi_transno = 0; - mti->mti_no_need_trans = 0; - return 0; - } + if (mti->mti_mdt == NULL || req == NULL) + return 0; if (mti->mti_has_trans) { /* XXX: currently there are allowed cases, but the wrong cases * are also possible, so better check is needed here */ - CDEBUG(D_INFO, "More than one transaction "LPU64"\n", mti->mti_transno); + CDEBUG(D_INFO, "More than one transaction "LPU64"\n", + mti->mti_transno); return 0; } mti->mti_has_trans = 1; - spin_lock(&mdt->mdt_transno_lock); + spin_lock(&mdt->mdt_lut.lut_translock); if (txn->th_result != 0) { if (mti->mti_transno != 0) { - CERROR("Replay transno "LPU64" failed: rc %i\n", - mti->mti_transno, txn->th_result); - mti->mti_transno = 0; + CERROR("Replay transno "LPU64" failed: rc %d\n", + mti->mti_transno, txn->th_result); + return 0; } } else if (mti->mti_transno == 0) { - mti->mti_transno = ++ mdt->mdt_last_transno; + mti->mti_transno = ++ mdt->mdt_lut.lut_last_transno; } else { /* should be replay */ - if (mti->mti_transno > mdt->mdt_last_transno) - mdt->mdt_last_transno = mti->mti_transno; + if (mti->mti_transno > mdt->mdt_lut.lut_last_transno) + mdt->mdt_lut.lut_last_transno = mti->mti_transno; } - + spin_unlock(&mdt->mdt_lut.lut_translock); /* sometimes the reply message has not been successfully packed */ LASSERT(req != NULL && req->rq_repmsg != NULL); + /** VBR: set new versions */ + /* we probably should not set local transno to the remote object + * on another storage, What about VBR on remote object? XXX */ + if (txn->th_result == 0 && mti->mti_mos != NULL && + !mdt_object_remote(mti->mti_mos)) { + + dt_version_set(env, mdt_obj2dt(mti->mti_mos), + mti->mti_transno, txn); + mti->mti_mos = NULL; + } + /* filling reply data */ - CDEBUG(D_INODE, "transno = %llu, last_committed = %llu\n", + CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n", mti->mti_transno, req->rq_export->exp_obd->obd_last_committed); req->rq_transno = mti->mti_transno; lustre_msg_set_transno(req->rq_repmsg, mti->mti_transno); - lustre_msg_set_last_xid(req->rq_repmsg, - mcd_last_xid(req->rq_export->exp_mdt_data.med_mcd)); - /* save transno for the commit callback */ - txi->txi_transno = mti->mti_transno; - spin_unlock(&mdt->mdt_transno_lock); - + /* if can't add callback, do sync write */ + txn->th_sync |= !!tgt_last_commit_cb_add(txn, &mdt->mdt_lut, + mti->mti_exp, + mti->mti_transno); return mdt_last_rcvd_update(mti, txn); } -/* commit callback, need to update last_commited value */ -static int mdt_txn_commit_cb(const struct lu_env *env, - struct thandle *txn, void *cookie) -{ - struct mdt_device *mdt = cookie; - struct obd_device *obd = md2lu_dev(&mdt->mdt_md_dev)->ld_obd; - struct mdt_txn_info *txi; - int i; - - txi = lu_context_key_get(&txn->th_ctx, &mdt_txn_key); - - /* copy of obd_transno_commit_cb() but with locking */ - spin_lock(&mdt->mdt_transno_lock); - if (txi->txi_transno > obd->obd_last_committed) { - obd->obd_last_committed = txi->txi_transno; - spin_unlock(&mdt->mdt_transno_lock); - ptlrpc_commit_replies(obd); - } else - spin_unlock(&mdt->mdt_transno_lock); - - if (txi->txi_transno) - CDEBUG(D_HA, "%s: transno "LPD64" is committed\n", - obd->obd_name, txi->txi_transno); - - /* iterate through all additional callbacks */ - for (i = 0; i < txi->txi_cb_count; i++) { - txi->txi_cb[i].mdt_cb_func(mdt, txi->txi_transno, - txi->txi_cb[i].mdt_cb_data, 0); - } - return 0; -} - int mdt_fs_setup(const struct lu_env *env, struct mdt_device *mdt, - struct obd_device *obd) + struct obd_device *obd, + struct lustre_sb_info *lsi) { - struct lu_fid fid; - struct dt_object *o; int rc = 0; ENTRY; @@ -943,56 +583,24 @@ int mdt_fs_setup(const struct lu_env *env, struct mdt_device *mdt, /* prepare transactions callbacks */ mdt->mdt_txn_cb.dtc_txn_start = mdt_txn_start_cb; mdt->mdt_txn_cb.dtc_txn_stop = mdt_txn_stop_cb; - mdt->mdt_txn_cb.dtc_txn_commit = mdt_txn_commit_cb; + mdt->mdt_txn_cb.dtc_txn_commit = NULL; mdt->mdt_txn_cb.dtc_cookie = mdt; + mdt->mdt_txn_cb.dtc_tag = LCT_MD_THREAD; CFS_INIT_LIST_HEAD(&mdt->mdt_txn_cb.dtc_linkage); dt_txn_callback_add(mdt->mdt_bottom, &mdt->mdt_txn_cb); - o = dt_store_open(env, mdt->mdt_bottom, LAST_RCVD, &fid); - if (!IS_ERR(o)) { - mdt->mdt_last_rcvd = o; - rc = mdt_server_data_init(env, mdt); - if (rc) - GOTO(put_last_rcvd, rc); - } else { - rc = PTR_ERR(o); - CERROR("cannot open %s: rc = %d\n", LAST_RCVD, rc); - RETURN(rc); - } - - o = dt_store_open(env, mdt->mdt_bottom, CAPA_KEYS, &fid); - if (!IS_ERR(o)) { - mdt->mdt_ck_obj = o; - rc = mdt_capa_keys_init(env, mdt); - if (rc) - GOTO(put_ck_object, rc); - } else { - rc = PTR_ERR(o); - CERROR("cannot open %s: rc = %d\n", CAPA_KEYS, rc); - GOTO(put_last_rcvd, rc); - } - RETURN(0); + rc = mdt_server_data_init(env, mdt, lsi); -put_ck_object: - lu_object_put(env, &o->do_lu); - mdt->mdt_ck_obj = NULL; -put_last_rcvd: - lu_object_put(env, &mdt->mdt_last_rcvd->do_lu); - mdt->mdt_last_rcvd = NULL; - return rc; + RETURN(rc); } - void mdt_fs_cleanup(const struct lu_env *env, struct mdt_device *mdt) { ENTRY; /* Remove transaction callback */ dt_txn_callback_del(mdt->mdt_bottom, &mdt->mdt_txn_cb); - if (mdt->mdt_last_rcvd) - lu_object_put(env, &mdt->mdt_last_rcvd->do_lu); - mdt->mdt_last_rcvd = NULL; if (mdt->mdt_ck_obj) lu_object_put(env, &mdt->mdt_ck_obj->do_lu); mdt->mdt_ck_obj = NULL; @@ -1002,72 +610,90 @@ void mdt_fs_cleanup(const struct lu_env *env, struct mdt_device *mdt) /* reconstruction code */ static void mdt_steal_ack_locks(struct ptlrpc_request *req) { + struct ptlrpc_service_part *svcpt; struct obd_export *exp = req->rq_export; - struct list_head *tmp; + cfs_list_t *tmp; struct ptlrpc_reply_state *oldrep; - struct ptlrpc_service *svc; int i; /* CAVEAT EMPTOR: spinlock order */ - spin_lock(&exp->exp_lock); - list_for_each (tmp, &exp->exp_outstanding_replies) { - oldrep = list_entry(tmp, struct ptlrpc_reply_state,rs_exp_list); + spin_lock(&exp->exp_lock); + cfs_list_for_each (tmp, &exp->exp_outstanding_replies) { + oldrep = cfs_list_entry(tmp, struct ptlrpc_reply_state, + rs_exp_list); if (oldrep->rs_xid != req->rq_xid) continue; - if (lustre_msg_get_opc(oldrep->rs_msg) != - lustre_msg_get_opc(req->rq_reqmsg)) - CERROR ("Resent req xid "LPX64" has mismatched opc: " + if (oldrep->rs_opc != lustre_msg_get_opc(req->rq_reqmsg)) + CERROR ("Resent req xid "LPU64" has mismatched opc: " "new %d old %d\n", req->rq_xid, lustre_msg_get_opc(req->rq_reqmsg), - lustre_msg_get_opc(oldrep->rs_msg)); + oldrep->rs_opc); - svc = oldrep->rs_service; - spin_lock (&svc->srv_lock); + svcpt = oldrep->rs_svcpt; + spin_lock(&svcpt->scp_rep_lock); - list_del_init (&oldrep->rs_exp_list); + cfs_list_del_init (&oldrep->rs_exp_list); - CWARN("Stealing %d locks from rs %p x"LPD64".t"LPD64 - " o%d NID %s\n", - oldrep->rs_nlocks, oldrep, - oldrep->rs_xid, oldrep->rs_transno, - lustre_msg_get_opc(oldrep->rs_msg), - libcfs_nid2str(exp->exp_connection->c_peer.nid)); + CDEBUG(D_HA, "Stealing %d locks from rs %p x"LPD64".t"LPD64 + " o%d NID %s\n", + oldrep->rs_nlocks, oldrep, + oldrep->rs_xid, oldrep->rs_transno, oldrep->rs_opc, + libcfs_nid2str(exp->exp_connection->c_peer.nid)); for (i = 0; i < oldrep->rs_nlocks; i++) - ptlrpc_save_lock(req, - &oldrep->rs_locks[i], - oldrep->rs_modes[i]); + ptlrpc_save_lock(req, &oldrep->rs_locks[i], + oldrep->rs_modes[i], 0); oldrep->rs_nlocks = 0; DEBUG_REQ(D_HA, req, "stole locks for"); - ptlrpc_schedule_difficult_reply (oldrep); + spin_lock(&oldrep->rs_lock); + ptlrpc_schedule_difficult_reply(oldrep); + spin_unlock(&oldrep->rs_lock); - spin_unlock (&svc->srv_lock); - break; - } - spin_unlock(&exp->exp_lock); + spin_unlock(&svcpt->scp_rep_lock); + break; + } + spin_unlock(&exp->exp_lock); } -void mdt_req_from_mcd(struct ptlrpc_request *req, - struct mdt_client_data *mcd) +/** + * VBR: restore versions + */ +void mdt_vbr_reconstruct(struct ptlrpc_request *req, + struct lsd_client_data *lcd) +{ + __u64 pre_versions[4] = {0}; + pre_versions[0] = lcd->lcd_pre_versions[0]; + pre_versions[1] = lcd->lcd_pre_versions[1]; + pre_versions[2] = lcd->lcd_pre_versions[2]; + pre_versions[3] = lcd->lcd_pre_versions[3]; + lustre_msg_set_versions(req->rq_repmsg, pre_versions); +} + +void mdt_req_from_lcd(struct ptlrpc_request *req, + struct lsd_client_data *lcd) { DEBUG_REQ(D_HA, req, "restoring transno "LPD64"/status %d", - mcd->mcd_last_transno, mcd->mcd_last_result); + lcd->lcd_last_transno, lcd->lcd_last_result); if (lustre_msg_get_opc(req->rq_reqmsg) == MDS_CLOSE || lustre_msg_get_opc(req->rq_repmsg) == MDS_DONE_WRITING) { - req->rq_transno = mcd->mcd_last_close_transno; - req->rq_status = mcd->mcd_last_close_result; - lustre_msg_set_transno(req->rq_repmsg, req->rq_transno); - lustre_msg_set_status(req->rq_repmsg, req->rq_status); + req->rq_transno = lcd->lcd_last_close_transno; + req->rq_status = lcd->lcd_last_close_result; } else { - req->rq_transno = mcd->mcd_last_transno; - req->rq_status = mcd->mcd_last_result; - lustre_msg_set_transno(req->rq_repmsg, req->rq_transno); - lustre_msg_set_status(req->rq_repmsg, req->rq_status); + req->rq_transno = lcd->lcd_last_transno; + req->rq_status = lcd->lcd_last_result; + mdt_vbr_reconstruct(req, lcd); } + if (req->rq_status != 0) + req->rq_transno = 0; + lustre_msg_set_transno(req->rq_repmsg, req->rq_transno); + lustre_msg_set_status(req->rq_repmsg, req->rq_status); + DEBUG_REQ(D_RPCTRACE, req, "restoring transno "LPD64"/status %d", + req->rq_transno, req->rq_status); + mdt_steal_ack_locks(req); } @@ -1075,83 +701,107 @@ void mdt_reconstruct_generic(struct mdt_thread_info *mti, struct mdt_lock_handle *lhc) { struct ptlrpc_request *req = mdt_info_req(mti); - struct mdt_export_data *med = &req->rq_export->exp_mdt_data; + struct tg_export_data *ted = &req->rq_export->exp_target_data; - return mdt_req_from_mcd(req, med->med_mcd); + return mdt_req_from_lcd(req, ted->ted_lcd); } static void mdt_reconstruct_create(struct mdt_thread_info *mti, struct mdt_lock_handle *lhc) { struct ptlrpc_request *req = mdt_info_req(mti); - struct mdt_export_data *med = &req->rq_export->exp_mdt_data; + struct obd_export *exp = req->rq_export; + struct tg_export_data *ted = &exp->exp_target_data; struct mdt_device *mdt = mti->mti_mdt; struct mdt_object *child; struct mdt_body *body; int rc; - mdt_req_from_mcd(req, med->med_mcd); + mdt_req_from_lcd(req, ted->ted_lcd); if (req->rq_status) return; /* if no error, so child was created with requested fid */ child = mdt_object_find(mti->mti_env, mdt, mti->mti_rr.rr_fid2); - LASSERT(!IS_ERR(child)); + if (IS_ERR(child)) { + rc = PTR_ERR(child); + LCONSOLE_WARN("Child "DFID" lookup error %d." + " Evicting client %s with export %s.\n", + PFID(mdt_object_fid(child)), rc, + obd_uuid2str(&exp->exp_client_uuid), + obd_export_nid2str(exp)); + mdt_export_evict(exp); + EXIT; + return; + } body = req_capsule_server_get(mti->mti_pill, &RMF_MDT_BODY); - rc = mo_attr_get(mti->mti_env, mdt_object_child(child), &mti->mti_attr); - if (rc == -EREMOTE) { - /* object was created on remote server */ - req->rq_status = rc; - body->valid |= OBD_MD_MDS; - } - mdt_pack_attr2body(mti, body, &mti->mti_attr.ma_attr, mdt_object_fid(child)); - mdt_object_put(mti->mti_env, child); + mti->mti_attr.ma_need = MA_INODE; + mti->mti_attr.ma_valid = 0; + rc = mdt_attr_get_complex(mti, child, &mti->mti_attr); + if (rc == -EREMOTE) { + /* object was created on remote server */ + if (!mdt_is_dne_client(exp)) + /* Return -EIO for old client */ + rc = -EIO; + + req->rq_status = rc; + body->valid |= OBD_MD_MDS; + } + mdt_pack_attr2body(mti, body, &mti->mti_attr.ma_attr, + mdt_object_fid(child)); + mdt_object_put(mti->mti_env, child); } static void mdt_reconstruct_setattr(struct mdt_thread_info *mti, struct mdt_lock_handle *lhc) { struct ptlrpc_request *req = mdt_info_req(mti); - struct mdt_export_data *med = &req->rq_export->exp_mdt_data; + struct obd_export *exp = req->rq_export; + struct mdt_export_data *med = &exp->exp_mdt_data; struct mdt_device *mdt = mti->mti_mdt; struct mdt_object *obj; struct mdt_body *body; - mdt_req_from_mcd(req, med->med_mcd); + mdt_req_from_lcd(req, med->med_ted.ted_lcd); if (req->rq_status) return; body = req_capsule_server_get(mti->mti_pill, &RMF_MDT_BODY); obj = mdt_object_find(mti->mti_env, mdt, mti->mti_rr.rr_fid1); - LASSERT(!IS_ERR(obj)); - mo_attr_get(mti->mti_env, mdt_object_child(obj), &mti->mti_attr); + if (IS_ERR(obj)) { + int rc = PTR_ERR(obj); + LCONSOLE_WARN(""DFID" lookup error %d." + " Evicting client %s with export %s.\n", + PFID(mdt_object_fid(obj)), rc, + obd_uuid2str(&exp->exp_client_uuid), + obd_export_nid2str(exp)); + mdt_export_evict(exp); + EXIT; + return; + } + mti->mti_attr.ma_need = MA_INODE; + mti->mti_attr.ma_valid = 0; + mdt_attr_get_complex(mti, obj, &mti->mti_attr); mdt_pack_attr2body(mti, body, &mti->mti_attr.ma_attr, mdt_object_fid(obj)); - if (mti->mti_epoch && (mti->mti_epoch->flags & MF_EPOCH_OPEN)) { + if (mti->mti_ioepoch && (mti->mti_ioepoch->flags & MF_EPOCH_OPEN)) { struct mdt_file_data *mfd; struct mdt_body *repbody; repbody = req_capsule_server_get(mti->mti_pill, &RMF_MDT_BODY); repbody->ioepoch = obj->mot_ioepoch; - spin_lock(&med->med_open_lock); - list_for_each_entry(mfd, &med->med_open_head, mfd_list) { - if (mfd->mfd_xid == req->rq_xid) - break; - } - LASSERT(&mfd->mfd_list != &med->med_open_head); - spin_unlock(&med->med_open_lock); - repbody->handle.cookie = mfd->mfd_handle.h_cookie; - } + spin_lock(&med->med_open_lock); + cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) { + if (mfd->mfd_xid == req->rq_xid) + break; + } + LASSERT(&mfd->mfd_list != &med->med_open_head); + spin_unlock(&med->med_open_lock); + repbody->handle.cookie = mfd->mfd_handle.h_cookie; + } - mdt_object_put(mti->mti_env, obj); -} - -static void mdt_reconstruct_setxattr(struct mdt_thread_info *mti, - struct mdt_lock_handle *lhc) -{ - /* reply nothing */ - req_capsule_shrink(mti->mti_pill, &RMF_EADATA, 0, RCL_SERVER); + mdt_object_put(mti->mti_env, obj); } typedef void (*mdt_reconstructor)(struct mdt_thread_info *mti, @@ -1164,7 +814,7 @@ static mdt_reconstructor reconstructors[REINT_MAX] = { [REINT_UNLINK] = mdt_reconstruct_generic, [REINT_RENAME] = mdt_reconstruct_generic, [REINT_OPEN] = mdt_reconstruct_open, - [REINT_SETXATTR] = mdt_reconstruct_setxattr + [REINT_SETXATTR] = mdt_reconstruct_generic }; void mdt_reconstruct(struct mdt_thread_info *mti,