X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fobdfilter%2Ffilter.c;h=fdccecc9638e0ddc2a659fbaa34609ef038e1bdd;hp=cbbafbc4f960c8b8ea31600996ae663b94f9e996;hb=cff450108c604eebd211e719007800539b537a61;hpb=824c90baa518327065ba74ac138160304c969d81 diff --git a/lustre/obdfilter/filter.c b/lustre/obdfilter/filter.c index cbbafbc..fdccecc 100644 --- a/lustre/obdfilter/filter.c +++ b/lustre/obdfilter/filter.c @@ -1,26 +1,42 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * - * linux/fs/obdfilter/filter.c + * GPL HEADER START * - * Copyright (c) 2001-2003 Cluster File Systems, Inc. - * Author: Peter Braam - * Author: Andreas Dilger + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * This file is part of Lustre, http://www.lustre.org. + * 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. * - * Lustre is free 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. + * 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). * - * 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 - * GNU General Public License for more details. + * 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 * - * You should have received a copy of the GNU General Public License - * along with Lustre; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * lustre/obdfilter/filter.c + * + * Author: Peter Braam + * Author: Andreas Dilger */ /* @@ -35,35 +51,38 @@ #define DEBUG_SUBSYSTEM S_FILTER +#ifndef AUTOCONF_INCLUDED #include +#endif #include #include #include #include #include #include -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -# include -# include -#endif +#include +#include +#include #include #include #include #include #include #include -#include #include #include #include #include #include +#include #include "filter_internal.h" +/* Group 0 is no longer a legal group, to catch uninitialized IDs */ +#define FILTER_MIN_GROUPS FILTER_GROUP_MDS1_N_BASE static struct lvfs_callback_ops filter_lvfs_ops; -kmem_cache_t *ll_fmd_cachep; +cfs_mem_cache_t *ll_fmd_cachep; static void filter_commit_cb(struct obd_device *obd, __u64 transno, void *cb_data, int error) @@ -73,14 +92,14 @@ static void filter_commit_cb(struct obd_device *obd, __u64 transno, /* Assumes caller has already pushed us into the kernel context. */ int filter_finish_transno(struct obd_export *exp, struct obd_trans_info *oti, - int rc) + int rc, int force_sync) { struct filter_obd *filter = &exp->exp_obd->u.filter; struct filter_export_data *fed = &exp->exp_filter_data; - struct filter_client_data *fcd = fed->fed_fcd; + struct lsd_client_data *lcd = fed->fed_lcd; __u64 last_rcvd; loff_t off; - int err, log_pri = D_HA; + int err, log_pri = D_RPCTRACE; /* Propagate error code. */ if (rc) @@ -104,10 +123,10 @@ int filter_finish_transno(struct obd_export *exp, struct obd_trans_info *oti, cpu_to_le64(last_rcvd); spin_unlock(&filter->fo_translock); } - fcd->fcd_last_rcvd = cpu_to_le64(last_rcvd); + lcd->lcd_last_transno = cpu_to_le64(last_rcvd); /* could get xid from oti, if it's ever needed */ - fcd->fcd_last_xid = 0; + lcd->lcd_last_xid = 0; off = fed->fed_lr_off; if (off <= 0) { @@ -115,11 +134,18 @@ int filter_finish_transno(struct obd_export *exp, struct obd_trans_info *oti, fed->fed_lr_idx, fed->fed_lr_off); err = -EINVAL; } else { - fsfilt_add_journal_cb(exp->exp_obd, last_rcvd, oti->oti_handle, - filter_commit_cb, NULL); + if (!force_sync) + force_sync = fsfilt_add_journal_cb(exp->exp_obd, + last_rcvd, + oti->oti_handle, + filter_commit_cb, + NULL); + err = fsfilt_write_record(exp->exp_obd, filter->fo_rcvd_filp, - fcd, sizeof(*fcd), &off, - exp->exp_need_sync); + lcd, sizeof(*lcd), &off, + force_sync | exp->exp_need_sync); + if (force_sync) + filter_commit_cb(exp->exp_obd, last_rcvd, NULL, err); } if (err) { log_pri = D_ERROR; @@ -128,7 +154,7 @@ int filter_finish_transno(struct obd_export *exp, struct obd_trans_info *oti, } CDEBUG(log_pri, "wrote trans "LPU64" for client %s at #%d: err = %d\n", - last_rcvd, fcd->fcd_uuid, fed->fed_lr_idx, err); + last_rcvd, lcd->lcd_uuid, fed->fed_lr_idx, err); RETURN(rc); } @@ -150,45 +176,84 @@ static void init_brw_stats(struct brw_stats *brw_stats) spin_lock_init(&brw_stats->hist[i].oh_lock); } +static int lprocfs_init_rw_stats(struct obd_device *obd, + struct lprocfs_stats **stats) +{ + int num_stats; + + num_stats = (sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) + + LPROC_FILTER_LAST - 1; + *stats = lprocfs_alloc_stats(num_stats, 0); + if (*stats == NULL) + return -ENOMEM; + + lprocfs_init_ops_stats(LPROC_FILTER_LAST, *stats); + lprocfs_counter_init(*stats, LPROC_FILTER_READ_BYTES, + LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes"); + lprocfs_counter_init(*stats, LPROC_FILTER_WRITE_BYTES, + LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes"); + + return(0); +} + /* brw_stats are 2128, ops are 3916, ldlm are 204, so 6248 bytes per client, plus the procfs overhead :( */ static int filter_export_stats_init(struct obd_device *obd, - struct obd_export *exp) + struct obd_export *exp, + void *client_nid) { - struct filter_export_data *fed = &exp->exp_filter_data; - struct proc_dir_entry *brw_entry; - int rc, num_stats; + int rc, newnid = 0; ENTRY; - init_brw_stats(&fed->fed_brw_stats); - if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid)) /* Self-export gets no proc entry */ RETURN(0); - - rc = lprocfs_exp_setup(exp); - if (rc) + + rc = lprocfs_exp_setup(exp, client_nid, &newnid); + if (rc) { + /* Mask error for already created + * /proc entries */ + if (rc == -EALREADY) + rc = 0; RETURN(rc); + } + + if (newnid) { + struct nid_stat *tmp = exp->exp_nid_stats; + LASSERT(tmp != NULL); + + OBD_ALLOC(tmp->nid_brw_stats, sizeof(struct brw_stats)); + if (tmp->nid_brw_stats == NULL) + RETURN(-ENOMEM); + + init_brw_stats(tmp->nid_brw_stats); + rc = lprocfs_seq_create(exp->exp_nid_stats->nid_proc, "brw_stats", + 0644, &filter_per_nid_stats_fops, + exp->exp_nid_stats); + if (rc) + CWARN("Error adding the brw_stats file\n"); + + rc = lprocfs_init_rw_stats(obd, &exp->exp_nid_stats->nid_stats); + if (rc) + RETURN(rc); + + rc = lprocfs_register_stats(tmp->nid_proc, "stats", + tmp->nid_stats); + if (rc) + RETURN(rc); + /* Always add in ldlm_stats */ + tmp->nid_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC - + LDLM_FIRST_OPC, 0); + if (tmp->nid_ldlm_stats == NULL) + return -ENOMEM; + + lprocfs_init_ldlm_stats(tmp->nid_ldlm_stats); + rc = lprocfs_register_stats(tmp->nid_proc, "ldlm_stats", + tmp->nid_ldlm_stats); + if (rc) + RETURN(rc); + } - /* Create a per export proc entry for brw_stats */ - brw_entry = create_proc_entry("brw_stats", 0644, exp->exp_proc); - if (brw_entry == NULL) - RETURN(-ENOMEM); - brw_entry->proc_fops = &filter_per_export_stats_fops; - brw_entry->data = fed; - - /* Create a per export proc entry for ops stats */ - num_stats = (sizeof(*obd->obd_type->typ_ops) / sizeof(void *)) + - LPROC_FILTER_LAST - 1; - exp->exp_ops_stats = lprocfs_alloc_stats(num_stats); - if (exp->exp_ops_stats == NULL) - RETURN(-ENOMEM); - lprocfs_init_ops_stats(LPROC_FILTER_LAST, exp->exp_ops_stats); - lprocfs_counter_init(exp->exp_ops_stats, LPROC_FILTER_READ_BYTES, - LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes"); - lprocfs_counter_init(exp->exp_ops_stats, LPROC_FILTER_WRITE_BYTES, - LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes"); - lprocfs_register_stats(exp->exp_proc, "stats", exp->exp_ops_stats); RETURN(0); } @@ -210,7 +275,7 @@ static int filter_client_add(struct obd_device *obd, struct obd_export *exp, LASSERTF(cl_idx > -2, "%d\n", cl_idx); /* Self-export */ - if (strcmp(fed->fed_fcd->fcd_uuid, obd->obd_uuid.uuid) == 0) + if (strcmp(fed->fed_lcd->lcd_uuid, obd->obd_uuid.uuid) == 0) RETURN(0); /* the bitmap operations can handle cl_idx > sizeof(long) * 8, so @@ -220,7 +285,7 @@ static int filter_client_add(struct obd_device *obd, struct obd_export *exp, cl_idx = find_first_zero_bit(bitmap, LR_MAX_CLIENTS); repeat: if (cl_idx >= LR_MAX_CLIENTS) { - CERROR("no room for %u clients - fix LR_MAX_CLIENTS\n", + CERROR("no room for %u client - fix LR_MAX_CLIENTS\n", cl_idx); RETURN(-EOVERFLOW); } @@ -243,16 +308,16 @@ static int filter_client_add(struct obd_device *obd, struct obd_export *exp, LASSERTF(fed->fed_lr_off > 0, "fed_lr_off = %llu\n", fed->fed_lr_off); CDEBUG(D_INFO, "client at index %d (%llu) with UUID '%s' added\n", - fed->fed_lr_idx, fed->fed_lr_off, fed->fed_fcd->fcd_uuid); + fed->fed_lr_idx, fed->fed_lr_off, fed->fed_lcd->lcd_uuid); if (new_client) { struct lvfs_run_ctxt saved; loff_t off = fed->fed_lr_off; - void *handle; int rc; + void *handle; - CDEBUG(D_INFO, "writing client fcd at idx %u (%llu) (len %u)\n", - fed->fed_lr_idx,off,(unsigned int)sizeof(*fed->fed_fcd)); + CDEBUG(D_INFO, "writing client lcd at idx %u (%llu) (len %u)\n", + fed->fed_lr_idx,off,(unsigned int)sizeof(*fed->fed_lcd)); push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); /* Transaction needed to fix bug 1403 */ @@ -271,8 +336,8 @@ static int filter_client_add(struct obd_device *obd, struct obd_export *exp, spin_unlock(&exp->exp_lock); } rc = fsfilt_write_record(obd, filter->fo_rcvd_filp, - fed->fed_fcd, - sizeof(*fed->fed_fcd), + fed->fed_lcd, + sizeof(*fed->fed_lcd), &off, rc /* sync if no cb */); fsfilt_commit(obd, filter->fo_rcvd_filp->f_dentry->d_inode, @@ -289,26 +354,27 @@ static int filter_client_add(struct obd_device *obd, struct obd_export *exp, RETURN(0); } +struct lsd_client_data zero_lcd; /* globals are implicitly zeroed */ + static int filter_client_free(struct obd_export *exp) { struct filter_export_data *fed = &exp->exp_filter_data; struct filter_obd *filter = &exp->exp_obd->u.filter; struct obd_device *obd = exp->exp_obd; - struct filter_client_data zero_fcd; struct lvfs_run_ctxt saved; int rc; loff_t off; ENTRY; - if (fed->fed_fcd == NULL) + if (fed->fed_lcd == NULL) RETURN(0); - /* XXX if fcd_uuid were a real obd_uuid, I could use obd_uuid_equals */ - if (strcmp(fed->fed_fcd->fcd_uuid, obd->obd_uuid.uuid ) == 0) + /* XXX if lcd_uuid were a real obd_uuid, I could use obd_uuid_equals */ + if (strcmp(fed->fed_lcd->lcd_uuid, obd->obd_uuid.uuid ) == 0) GOTO(free, 0); CDEBUG(D_INFO, "freeing client at idx %u, offset %lld with UUID '%s'\n", - fed->fed_lr_idx, off, fed->fed_fcd->fcd_uuid); + fed->fed_lr_idx, fed->fed_lr_off, fed->fed_lcd->lcd_uuid); LASSERT(filter->fo_last_rcvd_slots != NULL); @@ -331,23 +397,26 @@ static int filter_client_free(struct obd_export *exp) } if (!(exp->exp_flags & OBD_OPT_FAILOVER)) { - memset(&zero_fcd, 0, sizeof zero_fcd); + /* Don't force sync on disconnect if aborting recovery, + * or it does num_clients * num_osts. b=17194 */ + int need_sync = (!exp->exp_libclient || exp->exp_need_sync) && + !(exp->exp_flags&OBD_OPT_ABORT_RECOV); push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); - rc = fsfilt_write_record(obd, filter->fo_rcvd_filp, &zero_fcd, - sizeof(zero_fcd), &off, - (!exp->exp_libclient || exp->exp_need_sync)); + rc = fsfilt_write_record(obd, filter->fo_rcvd_filp, &zero_lcd, + sizeof(zero_lcd), &off, 0); + /* 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. */ if (rc == 0) - /* update server's transno */ filter_update_server_data(obd, filter->fo_rcvd_filp, - filter->fo_fsd, - !exp->exp_libclient); + filter->fo_fsd, need_sync); pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); CDEBUG(rc == 0 ? D_INFO : D_ERROR, - "zeroing out client %s at idx %u (%llu) in %s rc %d\n", - fed->fed_fcd->fcd_uuid, fed->fed_lr_idx, fed->fed_lr_off, - LAST_RCVD, rc); + "zero out client %s at idx %u/%llu in %s %ssync rc %d\n", + fed->fed_lcd->lcd_uuid, fed->fed_lr_idx, fed->fed_lr_off, + LAST_RCVD, need_sync ? "" : "a", rc); } if (!test_and_clear_bit(fed->fed_lr_idx, filter->fo_last_rcvd_slots)) { @@ -358,8 +427,8 @@ static int filter_client_free(struct obd_export *exp) EXIT; free: - OBD_FREE(fed->fed_fcd, sizeof(*fed->fed_fcd)); - fed->fed_fcd = NULL; + OBD_FREE_PTR(fed->fed_lcd); + fed->fed_lcd = NULL; return 0; } @@ -473,7 +542,7 @@ struct filter_mod_data *filter_fmd_get(struct obd_export *exp, struct filter_export_data *fed = &exp->exp_filter_data; struct filter_mod_data *found = NULL, *fmd_new = NULL; - OBD_SLAB_ALLOC(fmd_new, ll_fmd_cachep, SLAB_NOFS, sizeof(*fmd_new)); + OBD_SLAB_ALLOC_PTR_GFP(fmd_new, ll_fmd_cachep, CFS_ALLOC_IO); spin_lock(&fed->fed_lock); found = filter_fmd_find_nolock(&exp->exp_obd->u.filter,fed,objid,group); @@ -538,13 +607,13 @@ static void filter_fmd_cleanup(struct obd_export *exp) static int filter_init_export(struct obd_export *exp) { spin_lock_init(&exp->exp_filter_data.fed_lock); - INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list); - + CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list); + spin_lock(&exp->exp_lock); exp->exp_connecting = 1; spin_unlock(&exp->exp_lock); - return 0; + return ldlm_init_export(exp); } static int filter_free_server_data(struct filter_obd *filter) @@ -571,7 +640,7 @@ int filter_update_server_data(struct obd_device *obd, struct file *filp, le64_to_cpu(fsd->lsd_mount_count)); fsd->lsd_compat14 = fsd->lsd_last_transno; - rc = fsfilt_write_record(obd, filp, fsd, sizeof(*fsd), &off,force_sync); + rc = fsfilt_write_record(obd, filp, fsd, sizeof(*fsd), &off, force_sync); if (rc) CERROR("error writing lr_server_data: rc = %d\n", rc); @@ -604,15 +673,15 @@ int filter_update_last_objid(struct obd_device *obd, obd_gr group, group, rc); RETURN(rc); } - +extern int ost_handle(struct ptlrpc_request *req); /* assumes caller has already in kernel ctxt */ static int filter_init_server_data(struct obd_device *obd, struct file * filp) { struct filter_obd *filter = &obd->u.filter; struct lr_server_data *fsd; - struct filter_client_data *fcd = NULL; + struct lsd_client_data *lcd = NULL; struct inode *inode = filp->f_dentry->d_inode; - unsigned long last_rcvd_size = inode->i_size; + unsigned long last_rcvd_size = i_size_read(inode); __u64 mount_count; int cl_idx; loff_t off = 0; @@ -621,8 +690,8 @@ static int filter_init_server_data(struct obd_device *obd, struct file * filp) /* ensure padding in the struct is the correct size */ CLASSERT (offsetof(struct lr_server_data, lsd_padding) + sizeof(fsd->lsd_padding) == LR_SERVER_SIZE); - CLASSERT (offsetof(struct filter_client_data, fcd_padding) + - sizeof(fcd->fcd_padding) == LR_CLIENT_SIZE); + CLASSERT (offsetof(struct lsd_client_data, lcd_padding) + + sizeof(lcd->lcd_padding) == LR_CLIENT_SIZE); OBD_ALLOC(fsd, sizeof(*fsd)); if (!fsd) @@ -655,17 +724,17 @@ static int filter_init_server_data(struct obd_device *obd, struct file * filp) GOTO(err_fsd, rc); } if (strcmp(fsd->lsd_uuid, obd->obd_uuid.uuid) != 0) { - LCONSOLE_ERROR("Trying to start OBD %s using the wrong" - " disk %s. Were the /dev/ assignments " - "rearranged?\n", - obd->obd_uuid.uuid, fsd->lsd_uuid); + LCONSOLE_ERROR_MSG(0x134, "Trying to start OBD %s " + "using the wrong disk %s. Were the " + "/dev/ assignments rearranged?\n", + obd->obd_uuid.uuid, fsd->lsd_uuid); GOTO(err_fsd, rc = -EINVAL); } mount_count = le64_to_cpu(fsd->lsd_mount_count); filter->fo_subdir_count = le16_to_cpu(fsd->lsd_subdir_count); /* COMPAT_146 */ /* Assume old last_rcvd format unless I_C_LR is set */ - if (!(fsd->lsd_feature_incompat & + if (!(fsd->lsd_feature_incompat & cpu_to_le32(OBD_INCOMPAT_COMMON_LR))) fsd->lsd_last_transno = fsd->lsd_compat14; /* end COMPAT_146 */ @@ -713,63 +782,63 @@ static int filter_init_server_data(struct obd_device *obd, struct file * filp) struct obd_export *exp; struct filter_export_data *fed; - if (!fcd) { - OBD_ALLOC(fcd, sizeof(*fcd)); - if (!fcd) + if (!lcd) { + OBD_ALLOC_PTR(lcd); + if (!lcd) GOTO(err_client, rc = -ENOMEM); } /* Don't assume off is incremented properly by - * fsfilt_read_record(), in case sizeof(*fcd) + * fsfilt_read_record(), in case sizeof(*lcd) * isn't the same as fsd->lsd_client_size. */ off = le32_to_cpu(fsd->lsd_client_start) + cl_idx * le16_to_cpu(fsd->lsd_client_size); - rc = fsfilt_read_record(obd, filp, fcd, sizeof(*fcd), &off); + rc = fsfilt_read_record(obd, filp, lcd, sizeof(*lcd), &off); if (rc) { CERROR("error reading FILT %s idx %d off %llu: rc %d\n", LAST_RCVD, cl_idx, off, rc); break; /* read error shouldn't cause startup to fail */ } - if (fcd->fcd_uuid[0] == '\0') { + if (lcd->lcd_uuid[0] == '\0') { CDEBUG(D_INFO, "skipping zeroed client at offset %d\n", cl_idx); continue; } - last_rcvd = le64_to_cpu(fcd->fcd_last_rcvd); + last_rcvd = le64_to_cpu(lcd->lcd_last_transno); /* These exports are cleaned up by filter_disconnect(), so they * need to be set up like real exports as filter_connect() does. */ - exp = class_new_export(obd, (struct obd_uuid *)fcd->fcd_uuid); + exp = class_new_export(obd, (struct obd_uuid *)lcd->lcd_uuid); + CDEBUG(D_HA, "RCVRNG CLIENT uuid: %s idx: %d lr: "LPU64 - " srv lr: "LPU64"\n", fcd->fcd_uuid, cl_idx, + " srv lr: "LPU64"\n", lcd->lcd_uuid, cl_idx, last_rcvd, le64_to_cpu(fsd->lsd_last_transno)); if (IS_ERR(exp)) { if (PTR_ERR(exp) == -EALREADY) { /* export already exists, zero out this one */ CERROR("Zeroing out duplicate export due to " "bug 10479.\n"); - fcd->fcd_uuid[0] = '\0'; + lcd->lcd_uuid[0] = '\0'; } else { GOTO(err_client, rc = PTR_ERR(exp)); } } else { fed = &exp->exp_filter_data; - fed->fed_fcd = fcd; - filter_export_stats_init(obd, exp); + fed->fed_lcd = lcd; + fed->fed_group = 0; /* will be assigned at connect */ + filter_export_stats_init(obd, exp, NULL); rc = filter_client_add(obd, exp, cl_idx); - LASSERTF(rc == 0, "rc = %d\n", rc); /* can't fail existing */ - - fcd = NULL; + /* can't fail for existing client */ + LASSERTF(rc == 0, "rc = %d\n", rc); + lcd = NULL; spin_lock(&exp->exp_lock); - exp->exp_replay_needed = 1; exp->exp_connecting = 0; + exp->exp_in_recovery = 0; spin_unlock(&exp->exp_lock); - - obd->obd_recoverable_clients++; obd->obd_max_recoverable_clients++; class_export_put(exp); } @@ -782,23 +851,12 @@ static int filter_init_server_data(struct obd_device *obd, struct file * filp) fsd->lsd_last_transno = cpu_to_le64(last_rcvd); } - if (fcd) - OBD_FREE(fcd, sizeof(*fcd)); + if (lcd) + OBD_FREE_PTR(lcd); obd->obd_last_committed = le64_to_cpu(fsd->lsd_last_transno); - if (obd->obd_recoverable_clients) { - CWARN("RECOVERY: service %s, %d recoverable clients, " - "last_rcvd "LPU64"\n", obd->obd_name, - obd->obd_recoverable_clients, - le64_to_cpu(fsd->lsd_last_transno)); - obd->obd_next_recovery_transno = obd->obd_last_committed + 1; - obd->obd_recovering = 1; - obd->obd_recovery_start = CURRENT_SECONDS; - /* Only used for lprocfs_status */ - obd->obd_recovery_end = obd->obd_recovery_start + - OBD_RECOVERY_TIMEOUT; - } + target_recovery_init(obd, ost_handle); out: filter->fo_mount_count = mount_count + 1; @@ -812,7 +870,7 @@ out: RETURN(0); err_client: - class_disconnect_exports(obd); + target_recovery_fini(obd); err_fsd: filter_free_server_data(filter); RETURN(rc); @@ -823,43 +881,48 @@ static int filter_cleanup_groups(struct obd_device *obd) struct filter_obd *filter = &obd->u.filter; struct file *filp; struct dentry *dentry; - int i; + int i, j; ENTRY; if (filter->fo_dentry_O_groups != NULL) { - for (i = 0; i < FILTER_GROUPS; i++) { + for (i = 0; i < filter->fo_group_count; i++) { dentry = filter->fo_dentry_O_groups[i]; if (dentry != NULL) f_dput(dentry); } OBD_FREE(filter->fo_dentry_O_groups, - FILTER_GROUPS * sizeof(*filter->fo_dentry_O_groups)); + filter->fo_group_count * + sizeof(*filter->fo_dentry_O_groups)); filter->fo_dentry_O_groups = NULL; } if (filter->fo_last_objid_files != NULL) { - for (i = 0; i < FILTER_GROUPS; i++) { + for (i = 0; i < filter->fo_group_count; i++) { filp = filter->fo_last_objid_files[i]; if (filp != NULL) filp_close(filp, 0); } OBD_FREE(filter->fo_last_objid_files, - FILTER_GROUPS * sizeof(*filter->fo_last_objid_files)); + filter->fo_group_count * + sizeof(*filter->fo_last_objid_files)); filter->fo_last_objid_files = NULL; } if (filter->fo_dentry_O_sub != NULL) { - for (i = 0; i < filter->fo_subdir_count; i++) { - dentry = filter->fo_dentry_O_sub[i]; - if (dentry != NULL) - f_dput(dentry); + for (i = 0; i < filter->fo_group_count; i++) { + for (j = 0; j < filter->fo_subdir_count; j++) { + dentry = filter->fo_dentry_O_sub[i].dentry[j]; + if (dentry != NULL) + f_dput(dentry); + } } OBD_FREE(filter->fo_dentry_O_sub, - filter->fo_subdir_count * + filter->fo_group_count * sizeof(*filter->fo_dentry_O_sub)); filter->fo_dentry_O_sub = NULL; } if (filter->fo_last_objids != NULL) { OBD_FREE(filter->fo_last_objids, - FILTER_GROUPS * sizeof(*filter->fo_last_objids)); + filter->fo_group_count * + sizeof(*filter->fo_last_objids)); filter->fo_last_objids = NULL; } if (filter->fo_dentry_O != NULL) { @@ -869,16 +932,243 @@ static int filter_cleanup_groups(struct obd_device *obd) RETURN(0); } +static int filter_update_last_group(struct obd_device *obd, int group) +{ + struct filter_obd *filter = &obd->u.filter; + struct file *filp = NULL; + int last_group = 0, rc; + loff_t off = 0; + ENTRY; + + if (group <= filter->fo_committed_group) + RETURN(0); + + filp = filp_open("LAST_GROUP", O_RDWR, 0700); + if (IS_ERR(filp)) { + rc = PTR_ERR(filp); + filp = NULL; + CERROR("cannot open LAST_GROUP: rc = %d\n", rc); + GOTO(cleanup, rc); + } + + rc = fsfilt_read_record(obd, filp, &last_group, sizeof(__u32), &off); + if (rc) { + CDEBUG(D_INODE, "error reading LAST_GROUP: rc %d\n",rc); + GOTO(cleanup, rc); + } + LASSERTF(off == 0 || CHECK_MDS_GROUP(last_group), + "off = %llu and last_group = %d\n", off, last_group); + + CDEBUG(D_INODE, "%s: previous %d, new %d\n", + obd->obd_name, last_group, group); + + off = 0; + last_group = group; + /* must be sync: bXXXX */ + rc = fsfilt_write_record(obd, filp, &last_group, sizeof(__u32), &off, 1); + if (rc) { + CDEBUG(D_INODE, "error updating LAST_GROUP: rc %d\n", rc); + GOTO(cleanup, rc); + } + + filter->fo_committed_group = group; +cleanup: + if (filp) + filp_close(filp, 0); + RETURN(rc); +} + +static int filter_read_group_internal(struct obd_device *obd, int group, + int create) +{ + struct filter_obd *filter = &obd->u.filter; + __u64 *new_objids = NULL; + struct filter_subdirs *new_subdirs = NULL, *tmp_subdirs = NULL; + struct dentry **new_groups = NULL; + struct file **new_files = NULL; + struct dentry *dentry; + struct file *filp; + int old_count = filter->fo_group_count, rc, stage = 0, i; + char name[25]; + __u64 last_objid; + loff_t off = 0; + int len = group + 1; + + snprintf(name, 24, "%d", group); + name[24] = '\0'; + + if (!create) { + dentry = ll_lookup_one_len(name, filter->fo_dentry_O, + strlen(name)); + if (IS_ERR(dentry)) { + CERROR("Cannot lookup expected object group %d: %ld\n", + group, PTR_ERR(dentry)); + RETURN(PTR_ERR(dentry)); + } + } else { + dentry = simple_mkdir(filter->fo_dentry_O, filter->fo_vfsmnt, + name, 0700, 1); + if (IS_ERR(dentry)) { + CERROR("cannot lookup/create O/%s: rc = %ld\n", name, + PTR_ERR(dentry)); + RETURN(PTR_ERR(dentry)); + } + } + stage = 1; + + snprintf(name, 24, "O/%d/LAST_ID", group); + name[24] = '\0'; + filp = filp_open(name, O_CREAT | O_RDWR, 0700); + if (IS_ERR(filp)) { + CERROR("cannot create %s: rc = %ld\n", name, PTR_ERR(filp)); + GOTO(cleanup, rc = PTR_ERR(filp)); + } + stage = 2; + + rc = fsfilt_read_record(obd, filp, &last_objid, sizeof(__u64), &off); + if (rc) { + CDEBUG(D_INODE, "error reading %s: rc %d\n", name, rc); + GOTO(cleanup, rc); + } + + if (filter->fo_subdir_count) { + OBD_ALLOC(tmp_subdirs, sizeof(*tmp_subdirs)); + if (tmp_subdirs == NULL) + GOTO(cleanup, rc = -ENOMEM); + stage = 3; + + for (i = 0; i < filter->fo_subdir_count; i++) { + char dir[20]; + snprintf(dir, sizeof(dir), "d%u", i); + + tmp_subdirs->dentry[i] = simple_mkdir(dentry, + filter->fo_vfsmnt, + dir, 0700, 1); + if (IS_ERR(tmp_subdirs->dentry[i])) { + rc = PTR_ERR(tmp_subdirs->dentry[i]); + CERROR("can't lookup/create O/%d/%s: rc = %d\n", + group, dir, rc); + GOTO(cleanup, rc); + } + + CDEBUG(D_INODE, "got/created O/%d/%s: %p\n", group, dir, + tmp_subdirs->dentry[i]); + } + } + + /* 'group' is an index; we need an array of length 'group + 1' */ + if (group + 1 > old_count) { + OBD_ALLOC(new_objids, len * sizeof(*new_objids)); + OBD_ALLOC(new_subdirs, len * sizeof(*new_subdirs)); + OBD_ALLOC(new_groups, len * sizeof(*new_groups)); + OBD_ALLOC(new_files, len * sizeof(*new_files)); + stage = 4; + if (new_objids == NULL || new_subdirs == NULL || + new_groups == NULL || new_files == NULL) + GOTO(cleanup, rc = -ENOMEM); + + if (old_count) { + memcpy(new_objids, filter->fo_last_objids, + old_count * sizeof(*new_objids)); + memcpy(new_subdirs, filter->fo_dentry_O_sub, + old_count * sizeof(*new_subdirs)); + memcpy(new_groups, filter->fo_dentry_O_groups, + old_count * sizeof(*new_groups)); + memcpy(new_files, filter->fo_last_objid_files, + old_count * sizeof(*new_files)); + + OBD_FREE(filter->fo_last_objids, + old_count * sizeof(*new_objids)); + OBD_FREE(filter->fo_dentry_O_sub, + old_count * sizeof(*new_subdirs)); + OBD_FREE(filter->fo_dentry_O_groups, + old_count * sizeof(*new_groups)); + OBD_FREE(filter->fo_last_objid_files, + old_count * sizeof(*new_files)); + } + filter->fo_last_objids = new_objids; + filter->fo_dentry_O_sub = new_subdirs; + filter->fo_dentry_O_groups = new_groups; + filter->fo_last_objid_files = new_files; + filter->fo_group_count = len; + } + + filter->fo_dentry_O_groups[group] = dentry; + filter->fo_last_objid_files[group] = filp; + if (filter->fo_subdir_count) { + filter->fo_dentry_O_sub[group] = *tmp_subdirs; + OBD_FREE(tmp_subdirs, sizeof(*tmp_subdirs)); + } + + filter_update_last_group(obd, group); + + if (i_size_read(filp->f_dentry->d_inode) == 0) { + filter->fo_last_objids[group] = FILTER_INIT_OBJID; + rc = filter_update_last_objid(obd, group, 1); + RETURN(rc); + } + + filter->fo_last_objids[group] = le64_to_cpu(last_objid); + CDEBUG(D_INODE, "%s: server last_objid group %d: "LPU64"\n", + obd->obd_name, group, last_objid); + RETURN(0); + cleanup: + switch (stage) { + case 4: + if (new_objids != NULL) + OBD_FREE(new_objids, len * sizeof(*new_objids)); + if (new_subdirs != NULL) + OBD_FREE(new_subdirs, len * sizeof(*new_subdirs)); + if (new_groups != NULL) + OBD_FREE(new_groups, len * sizeof(*new_groups)); + if (new_files != NULL) + OBD_FREE(new_files, len * sizeof(*new_files)); + case 3: + if (filter->fo_subdir_count) { + for (i = 0; i < filter->fo_subdir_count; i++) { + if (tmp_subdirs->dentry[i] != NULL) + dput(tmp_subdirs->dentry[i]); + } + OBD_FREE(tmp_subdirs, sizeof(*tmp_subdirs)); + } + case 2: + filp_close(filp, 0); + case 1: + dput(dentry); + } + RETURN(rc); +} + +static int filter_read_groups(struct obd_device *obd, int last_group, + int create) +{ + struct filter_obd *filter = &obd->u.filter; + int old_count, group, rc = 0; + + down(&filter->fo_init_lock); + old_count = filter->fo_group_count; + for (group = old_count; group <= last_group; group++) { + + rc = filter_read_group_internal(obd, group, create); + if (rc != 0) + break; + } + up(&filter->fo_init_lock); + return rc; +} + /* FIXME: object groups */ static int filter_prep_groups(struct obd_device *obd) { struct filter_obd *filter = &obd->u.filter; struct dentry *dentry, *O_dentry; struct file *filp; - int i, rc = 0, cleanup_phase = 0; + int last_group, rc = 0, cleanup_phase = 0; + loff_t off = 0; ENTRY; - O_dentry = simple_mkdir(current->fs->pwd, "O", 0700, 1); + O_dentry = simple_mkdir(current->fs->pwd, filter->fo_vfsmnt, + "O", 0700, 1); CDEBUG(D_INODE, "got/created O: %p\n", O_dentry); if (IS_ERR(O_dentry)) { rc = PTR_ERR(O_dentry); @@ -887,91 +1177,102 @@ static int filter_prep_groups(struct obd_device *obd) } filter->fo_dentry_O = O_dentry; cleanup_phase = 1; /* O_dentry */ - - OBD_ALLOC(filter->fo_last_objids, FILTER_GROUPS * sizeof(__u64)); - if (filter->fo_last_objids == NULL) - GOTO(cleanup, rc = -ENOMEM); - cleanup_phase = 2; /* groups */ - - OBD_ALLOC(filter->fo_dentry_O_groups, FILTER_GROUPS * sizeof(dentry)); - if (filter->fo_dentry_O_groups == NULL) - GOTO(cleanup, rc = -ENOMEM); - OBD_ALLOC(filter->fo_last_objid_files, FILTER_GROUPS * sizeof(filp)); - if (filter->fo_last_objid_files == NULL) - GOTO(cleanup, rc = -ENOMEM); - - for (i = 0; i < FILTER_GROUPS; i++) { - char name[25]; - loff_t off = 0; - sprintf(name, "%d", i); - dentry = simple_mkdir(O_dentry, name, 0700, 1); - CDEBUG(D_INODE, "got/created O/%s: %p\n", name, dentry); - if (IS_ERR(dentry)) { - rc = PTR_ERR(dentry); - CERROR("cannot lookup/create O/%s: rc = %d\n", - name, rc); - GOTO(cleanup, rc); + /* Lookup "R" to tell if we're on an old OST FS and need to convert + * from O/R// to O/0//. This can be removed + * some time post 1.0 when all old-style OSTs have converted along + * with the init_objid hack. */ + dentry = ll_lookup_one_len("R", O_dentry, 1); + if (IS_ERR(dentry)) + GOTO(cleanup, rc = PTR_ERR(dentry)); + if (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode)) { + struct dentry *O0_dentry = lookup_one_len("0", O_dentry, 1); + ENTRY; + + CWARN("converting OST to new object layout\n"); + if (IS_ERR(O0_dentry)) { + rc = PTR_ERR(O0_dentry); + CERROR("error looking up O/0: rc %d\n", rc); + GOTO(cleanup_R, rc); } - filter->fo_dentry_O_groups[i] = dentry; - sprintf(name, "O/%d/LAST_ID", i); - filp = filp_open(name, O_CREAT | O_RDWR, 0700); - if (IS_ERR(filp)) { - rc = PTR_ERR(filp); - CERROR("cannot create %s: rc = %d\n", name, rc); - GOTO(cleanup, rc); + if (O0_dentry->d_inode) { + CERROR("Both O/R and O/0 exist. Fix manually.\n"); + GOTO(cleanup_O0, rc = -EEXIST); } - filter->fo_last_objid_files[i] = filp; - if (filp->f_dentry->d_inode->i_size == 0) { - filter->fo_last_objids[i] = FILTER_INIT_OBJID; - rc = filter_update_last_objid(obd, i, 1); - if (rc) - GOTO(cleanup, rc); - continue; - } + LOCK_INODE_MUTEX(O_dentry->d_inode); + rc = ll_vfs_rename(O_dentry->d_inode, dentry, filter->fo_vfsmnt, + O_dentry->d_inode, O0_dentry, + filter->fo_vfsmnt); + UNLOCK_INODE_MUTEX(O_dentry->d_inode); - rc = fsfilt_read_record(obd, filp, &filter->fo_last_objids[i], - sizeof(__u64), &off); if (rc) { - CDEBUG(D_INODE,"OBD filter: error reading %s: rc %d\n", - name, rc); - GOTO(cleanup, rc); + CERROR("error renaming O/R to O/0: rc %d\n", rc); + GOTO(cleanup_O0, rc); } - filter->fo_last_objids[i] = - le64_to_cpu(filter->fo_last_objids[i]); - CDEBUG(D_HA, "%s: server last_objid group %d: "LPU64"\n", - obd->obd_name, i, filter->fo_last_objids[i]); + filter->fo_fsd->lsd_feature_incompat |= + cpu_to_le32(OBD_INCOMPAT_GROUPS); + rc = filter_update_server_data(obd, filter->fo_rcvd_filp, + filter->fo_fsd, 1); + GOTO(cleanup_O0, rc); + + cleanup_O0: + f_dput(O0_dentry); + cleanup_R: + f_dput(dentry); + if (rc) + GOTO(cleanup, rc); + } else { + f_dput(dentry); } - if (filter->fo_subdir_count) { - O_dentry = filter->fo_dentry_O_groups[0]; - OBD_ALLOC(filter->fo_dentry_O_sub, - filter->fo_subdir_count * sizeof(dentry)); - if (filter->fo_dentry_O_sub == NULL) - GOTO(cleanup, rc = -ENOMEM); + cleanup_phase = 2; /* groups */ - for (i = 0; i < filter->fo_subdir_count; i++) { - char dir[20]; - snprintf(dir, sizeof(dir), "d%u", i); + /* we have to initialize all groups before first connections from + * clients because they may send create/destroy for any group -bzzz */ + filp = filp_open("LAST_GROUP", O_CREAT | O_RDWR, 0700); + if (IS_ERR(filp)) { + CERROR("cannot create LAST_GROUP: rc = %ld\n", PTR_ERR(filp)); + GOTO(cleanup, rc = PTR_ERR(filp)); + } + cleanup_phase = 3; /* filp */ - dentry = simple_mkdir(O_dentry, dir, 0700, 1); - CDEBUG(D_INODE, "got/created O/0/%s: %p\n", dir,dentry); - if (IS_ERR(dentry)) { - rc = PTR_ERR(dentry); - CERROR("can't lookup/create O/0/%s: rc = %d\n", - dir, rc); - GOTO(cleanup, rc); - } - filter->fo_dentry_O_sub[i] = dentry; - } + rc = fsfilt_read_record(obd, filp, &last_group, sizeof(__u32), &off); + if (rc) { + CDEBUG(D_INODE, "error reading LAST_GROUP: rc %d\n", rc); + GOTO(cleanup, rc); + } + if (off == 0) { + last_group = FILTER_MIN_GROUPS; + } else { + LASSERT_MDS_GROUP(last_group); } + + CWARN("%s: initialize groups [%d,%d]\n", obd->obd_name, + FILTER_MIN_GROUPS, last_group); + filter->fo_committed_group = last_group; + rc = filter_read_groups(obd, last_group, 1); + if (rc) + GOTO(cleanup, rc); + + filp_close(filp, 0); RETURN(0); cleanup: - filter_cleanup_groups(obd); + switch (cleanup_phase) { + case 3: + filp_close(filp, 0); + case 2: + filter_cleanup_groups(obd); + case 1: + f_dput(filter->fo_dentry_O); + filter->fo_dentry_O = NULL; + default: + break; + } return rc; + } /* setup the object store with correct subdirectories */ @@ -1018,7 +1319,7 @@ static int filter_prep(struct obd_device *obd) rc = PTR_ERR(file); CERROR("OBD filter: cannot open/create %s rc = %d\n", HEALTH_CHECK, rc); - GOTO(err_filp, rc); + GOTO(err_server_data, rc); } filter->fo_health_check_filp = file; if (!S_ISREG(file->f_dentry->d_inode->i_mode)) { @@ -1032,20 +1333,20 @@ static int filter_prep(struct obd_device *obd) rc = filter_prep_groups(obd); if (rc) - GOTO(err_server_data, rc); - out: + GOTO(err_health_check, rc); +out: pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); return(rc); - err_server_data: - //class_disconnect_exports(obd, 0); - filter_free_server_data(filter); - err_health_check: +err_health_check: if (filp_close(filter->fo_health_check_filp, 0)) CERROR("can't close %s after error\n", HEALTH_CHECK); filter->fo_health_check_filp = NULL; - err_filp: +err_server_data: + target_recovery_fini(obd); + filter_free_server_data(filter); +err_filp: if (filp_close(filter->fo_rcvd_filp, 0)) CERROR("can't close %s after error\n", LAST_RCVD); filter->fo_rcvd_filp = NULL; @@ -1069,8 +1370,9 @@ static void filter_post(struct obd_device *obd) if (rc) CERROR("error writing server data: rc = %d\n", rc); - for (i = 0; i < FILTER_GROUPS; i++) { - rc = filter_update_last_objid(obd, i, (i == FILTER_GROUPS - 1)); + for (i = 0; i < filter->fo_group_count; i++) { + rc = filter_update_last_objid(obd, i, + (i == filter->fo_group_count - 1)); if (rc) CERROR("error writing group %d lastobjid: rc = %d\n", i, rc); @@ -1089,13 +1391,16 @@ static void filter_post(struct obd_device *obd) filter_cleanup_groups(obd); filter_free_server_data(filter); pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); + + filter_free_capa_keys(filter); + cleanup_capa_hash(filter->fo_capa_hash); } static void filter_set_last_id(struct filter_obd *filter, obd_id id, obd_gr group) { LASSERT(filter->fo_fsd != NULL); - LASSERT(group <= FILTER_GROUPS); + LASSERT(group <= filter->fo_group_count); spin_lock(&filter->fo_objidlock); filter->fo_last_objids[group] = id; @@ -1106,19 +1411,18 @@ obd_id filter_last_id(struct filter_obd *filter, obd_gr group) { obd_id id; LASSERT(filter->fo_fsd != NULL); - LASSERT(group <= FILTER_GROUPS); + LASSERT(group <= filter->fo_group_count); /* FIXME: object groups */ spin_lock(&filter->fo_objidlock); id = filter->fo_last_objids[group]; spin_unlock(&filter->fo_objidlock); - return id; } static int filter_lock_dentry(struct obd_device *obd, struct dentry *dparent) { - LOCK_INODE_MUTEX(dparent->d_inode); + LOCK_INODE_MUTEX_PARENT(dparent->d_inode); return 0; } @@ -1126,12 +1430,15 @@ static int filter_lock_dentry(struct obd_device *obd, struct dentry *dparent) struct dentry *filter_parent(struct obd_device *obd, obd_gr group, obd_id objid) { struct filter_obd *filter = &obd->u.filter; - LASSERT(group < FILTER_GROUPS); /* FIXME: object groups */ + struct filter_subdirs *subdirs; + LASSERT(group < filter->fo_group_count); /* FIXME: object groups */ - if (group > 0 || filter->fo_subdir_count == 0) + if ((group > FILTER_GROUP_MDS0 && group < FILTER_GROUP_MDS1_N_BASE) || + filter->fo_subdir_count == 0) return filter->fo_dentry_O_groups[group]; - return filter->fo_dentry_O_sub[objid & (filter->fo_subdir_count - 1)]; + subdirs = &filter->fo_dentry_O_sub[group]; + return subdirs->dentry[objid & (filter->fo_subdir_count - 1)]; } /* We never dget the object parent, so DON'T dput it either */ @@ -1144,9 +1451,11 @@ struct dentry *filter_parent_lock(struct obd_device *obd, obd_gr group, if (IS_ERR(dparent)) return dparent; + if (dparent == NULL) + return ERR_PTR(-ENOENT); rc = filter_lock_dentry(obd, dparent); - fsfilt_check_slow(obd, now, obd_timeout, "parent lock"); + fsfilt_check_slow(obd, now, "parent lock"); return rc ? ERR_PTR(rc) : dparent; } @@ -1174,13 +1483,12 @@ struct dentry *filter_fid2dentry(struct obd_device *obd, ENTRY; if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT) && - !obd->u.filter.fo_destroy_in_progress) { + obd->u.filter.fo_destroys_in_progress == 0) { /* don't fail lookups for orphan recovery, it causes * later LBUGs when objects still exist during precreate */ CDEBUG(D_INFO, "*** obd_fail_loc=%x ***\n",OBD_FAIL_OST_ENOENT); RETURN(ERR_PTR(-ENOENT)); } - if (id == 0) { CERROR("fatal: invalid object id 0\n"); RETURN(ERR_PTR(-ESTALE)); @@ -1222,20 +1530,22 @@ struct dentry *filter_fid2dentry(struct obd_device *obd, RETURN(dchild); } -static int filter_prepare_destroy(struct obd_device *obd, obd_id objid) +static int filter_prepare_destroy(struct obd_device *obd, obd_id objid, + obd_id group) { struct lustre_handle lockh; int flags = LDLM_AST_DISCARD_DATA, rc; - struct ldlm_res_id res_id = { .name = { objid } }; + struct ldlm_res_id res_id; ldlm_policy_data_t policy = { .l_extent = { 0, OBD_OBJECT_EOF } }; - ENTRY; + + osc_build_res_name(objid, group, &res_id); /* Tell the clients that the object is gone now and that they should * throw away any cached pages. */ - rc = ldlm_cli_enqueue_local(obd->obd_namespace, res_id, LDLM_EXTENT, + rc = ldlm_cli_enqueue_local(obd->obd_namespace, &res_id, LDLM_EXTENT, &policy, LCK_PW, &flags, ldlm_blocking_ast, ldlm_completion_ast, NULL, NULL, 0, NULL, - &lockh); + NULL, &lockh); /* We only care about the side-effects, just drop the lock. */ if (rc == ELDLM_OK) @@ -1249,7 +1559,8 @@ static int filter_prepare_destroy(struct obd_device *obd, obd_id objid) * i_sem before starting a handle, while filter_destroy() + vfs_unlink do the * reverse. Caller must take i_sem before starting the transaction and we * drop it here before the inode is removed from the dentry. bug 4180/6984 */ -int filter_vfs_unlink(struct inode *dir, struct dentry *dentry) +int filter_vfs_unlink(struct inode *dir, struct dentry *dentry, + struct vfsmount *mnt) { int rc; ENTRY; @@ -1273,8 +1584,9 @@ int filter_vfs_unlink(struct inode *dir, struct dentry *dentry) GOTO(out, rc = -EPERM); /* check_sticky() */ - if ((dentry->d_inode->i_uid != current->fsuid && !capable(CAP_FOWNER))|| - IS_APPEND(dentry->d_inode) || IS_IMMUTABLE(dentry->d_inode)) + if ((dentry->d_inode->i_uid != current->fsuid && + !cfs_capable(CFS_CAP_FOWNER)) || IS_APPEND(dentry->d_inode) || + IS_IMMUTABLE(dentry->d_inode)) GOTO(out, rc = -EPERM); /* NOTE: This might need to go outside i_mutex, though it isn't clear if @@ -1282,11 +1594,9 @@ int filter_vfs_unlink(struct inode *dir, struct dentry *dentry) * here) or some other ordering issue. */ DQUOT_INIT(dir); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - rc = security_inode_unlink(dir, dentry); + rc = ll_security_inode_unlink(dir, dentry, mnt); if (rc) GOTO(out, rc); -#endif rc = dir->i_op->unlink(dir, dentry); out: @@ -1306,6 +1616,7 @@ static int filter_destroy_internal(struct obd_device *obd, obd_id objid, struct dentry *dchild) { struct inode *inode = dchild->d_inode; + struct filter_obd *filter = &obd->u.filter; int rc; if (inode->i_nlink != 1 || atomic_read(&inode->i_count) != 1) { @@ -1315,28 +1626,76 @@ static int filter_destroy_internal(struct obd_device *obd, obd_id objid, atomic_read(&inode->i_count)); } - rc = filter_vfs_unlink(dparent->d_inode, dchild); + rc = filter_vfs_unlink(dparent->d_inode, dchild, filter->fo_vfsmnt); if (rc) CERROR("error unlinking objid %.*s: rc %d\n", dchild->d_name.len, dchild->d_name.name, rc); return(rc); } +struct filter_intent_args { + struct ldlm_lock **victim; + __u64 size; + int *liblustre; +}; + +static enum interval_iter filter_intent_cb(struct interval_node *n, + void *args) +{ + struct ldlm_interval *node = (struct ldlm_interval *)n; + struct filter_intent_args *arg = (struct filter_intent_args*)args; + __u64 size = arg->size; + struct ldlm_lock **v = arg->victim; + struct ldlm_lock *lck; + + /* If the interval is lower than the current file size, + * just break. */ + if (interval_high(n) <= size) + return INTERVAL_ITER_STOP; + + list_for_each_entry(lck, &node->li_group, l_sl_policy) { + /* Don't send glimpse ASTs to liblustre clients. + * They aren't listening for them, and they do + * entirely synchronous I/O anyways. */ + if (lck->l_export == NULL || + lck->l_export->exp_libclient == 1) + continue; + + if (*arg->liblustre) + *arg->liblustre = 0; + + if (*v == NULL) { + *v = LDLM_LOCK_GET(lck); + } else if ((*v)->l_policy_data.l_extent.start < + lck->l_policy_data.l_extent.start) { + LDLM_LOCK_RELEASE(*v); + *v = LDLM_LOCK_GET(lck); + } + + /* the same policy group - every lock has the + * same extent, so needn't do it any more */ + break; + } + + return INTERVAL_ITER_CONT; +} + static int filter_intent_policy(struct ldlm_namespace *ns, struct ldlm_lock **lockp, void *req_cookie, ldlm_mode_t mode, int flags, void *data) { - struct list_head rpc_list = LIST_HEAD_INIT(rpc_list); + CFS_LIST_HEAD(rpc_list); struct ptlrpc_request *req = req_cookie; struct ldlm_lock *lock = *lockp, *l = NULL; struct ldlm_resource *res = lock->l_resource; ldlm_processing_policy policy; struct ost_lvb *res_lvb, *reply_lvb; struct ldlm_reply *rep; - struct list_head *tmp; ldlm_error_t err; - int rc, tmpflags = 0, only_liblustre = 0; - int repsize[3] = { [MSG_PTLRPC_BODY_OFF] = sizeof(struct ptlrpc_body), + int idx, rc, tmpflags = 0, only_liblustre = 1; + struct ldlm_interval_tree *tree; + struct filter_intent_args arg; + __u32 repsize[3] = { [MSG_PTLRPC_BODY_OFF] = sizeof(struct ptlrpc_body), [DLM_LOCKREPLY_OFF] = sizeof(*rep), [DLM_REPLY_REC_OFF] = sizeof(*reply_lvb) }; ENTRY; @@ -1358,12 +1717,11 @@ static int filter_intent_policy(struct ldlm_namespace *ns, //fixup_handle_for_resent_req(req, lock, &lockh); - /* If we grant any lock at all, it will be a whole-file read lock. - * Call the extent policy function to see if our request can be - * granted, or is blocked. */ - lock->l_policy_data.l_extent.start = 0; - lock->l_policy_data.l_extent.end = OBD_OBJECT_EOF; - lock->l_req_mode = LCK_PR; + /* Call the extent policy function to see if our request can be + * granted, or is blocked. + * If the OST lock has LDLM_FL_HAS_INTENT set, it means a glimpse + * lock, and should not be granted if the lock will be blocked. + */ LASSERT(ns == res->lr_namespace); lock_res(res); @@ -1379,7 +1737,7 @@ static int filter_intent_policy(struct ldlm_namespace *ns, LASSERT(lock->l_flags & LDLM_FL_CP_REQD); lock->l_flags &= ~LDLM_FL_CP_REQD; list_del_init(&wlock->l_cp_ast); - LDLM_LOCK_PUT(wlock); + LDLM_LOCK_RELEASE(wlock); } /* The lock met with no resistance; we're finished. */ @@ -1390,8 +1748,7 @@ static int filter_intent_policy(struct ldlm_namespace *ns, * list (and potentially being added to l_pending_list by an * AST) when we are going to drop this lock ASAP. */ if (lock->l_export->exp_libclient || - OBD_FAIL_CHECK(OBD_FAIL_LDLM_GLIMPSE)) { - OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_GLIMPSE, 2); + OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_GLIMPSE, 2)) { ldlm_resource_unlink_lock(lock); err = ELDLM_LOCK_ABORTED; } else { @@ -1409,42 +1766,23 @@ static int filter_intent_policy(struct ldlm_namespace *ns, LASSERT(res_lvb != NULL); *reply_lvb = *res_lvb; - list_for_each(tmp, &res->lr_granted) { - struct ldlm_lock *tmplock = - list_entry(tmp, struct ldlm_lock, l_res_link); - - if (tmplock->l_granted_mode == LCK_PR) - continue; - /* - * ->ns_lock guarantees that no new locks are granted, and, - * therefore, that res->lr_lvb_data cannot increase beyond the - * end of already granted lock. As a result, it is safe to - * check against "stale" reply_lvb->lvb_size value without - * res->lr_lvb_sem. - */ - if (tmplock->l_policy_data.l_extent.end <= reply_lvb->lvb_size) - continue; - - /* Don't send glimpse ASTs to liblustre clients. They aren't - * listening for them, and they do entirely synchronous I/O - * anyways. */ - if (tmplock->l_export == NULL || - tmplock->l_export->exp_libclient == 1) { - only_liblustre = 1; - continue; - } - - if (l == NULL) { - l = LDLM_LOCK_GET(tmplock); - continue; - } - - if (l->l_policy_data.l_extent.start > - tmplock->l_policy_data.l_extent.start) + /* + * ->ns_lock guarantees that no new locks are granted, and, + * therefore, that res->lr_lvb_data cannot increase beyond the + * end of already granted lock. As a result, it is safe to + * check against "stale" reply_lvb->lvb_size value without + * res->lr_lvb_sem. + */ + arg.size = reply_lvb->lvb_size; + arg.victim = &l; + arg.liblustre = &only_liblustre; + for (idx = 0; idx < LCK_MODE_NUM; idx++) { + tree = &res->lr_itree[idx]; + if (tree->lit_mode == LCK_PR) continue; - LDLM_LOCK_PUT(l); - l = LDLM_LOCK_GET(tmplock); + interval_iterate_reverse(tree->lit_root, + filter_intent_cb, &arg); } unlock_res(res); @@ -1461,8 +1799,7 @@ static int filter_intent_policy(struct ldlm_namespace *ns, * * Of course, this will all disappear when we switch to * taking liblustre locks on the OST. */ - if (ns->ns_lvbo && ns->ns_lvbo->lvbo_update) - ns->ns_lvbo->lvbo_update(res, NULL, 0, 1); + ldlm_res_lvbo_update(res, NULL, 0, 1); } RETURN(ELDLM_LOCK_ABORTED); } @@ -1488,15 +1825,15 @@ static int filter_intent_policy(struct ldlm_namespace *ns, * XXX nikita: situation when ldlm_server_glimpse_ast() failed before * sending ast is not handled. This can result in lost client writes. */ - if (rc != 0 && ns->ns_lvbo && ns->ns_lvbo->lvbo_update) - ns->ns_lvbo->lvbo_update(res, NULL, 0, 1); + if (rc != 0) + ldlm_res_lvbo_update(res, NULL, 0, 1); lock_res(res); *reply_lvb = *res_lvb; unlock_res(res); out: - LDLM_LOCK_PUT(l); + LDLM_LOCK_RELEASE(l); RETURN(ELDLM_LOCK_ABORTED); } @@ -1552,6 +1889,30 @@ static void filter_iobuf_pool_done(struct filter_obd *filter) EXIT; } +static int filter_adapt_sptlrpc_conf(struct obd_device *obd, int initial) +{ + struct filter_obd *filter = &obd->u.filter; + struct sptlrpc_rule_set tmp_rset; + int rc; + + sptlrpc_rule_set_init(&tmp_rset); + rc = sptlrpc_conf_target_get_rules(obd, &tmp_rset, initial); + if (rc) { + CERROR("obd %s: failed get sptlrpc rules: %d\n", + obd->obd_name, rc); + return rc; + } + + sptlrpc_target_update_exp_flavor(obd, &tmp_rset); + + write_lock(&filter->fo_sptlrpc_lock); + sptlrpc_rule_set_free(&filter->fo_sptlrpc_rset); + filter->fo_sptlrpc_rset = tmp_rset; + write_unlock(&filter->fo_sptlrpc_lock); + + return 0; +} + /* * pre-allocate pool of iobuf's to be used by filter_{prep,commit}rw_write(). */ @@ -1561,6 +1922,7 @@ static int filter_iobuf_pool_init(struct filter_obd *filter) ENTRY; + OBD_ALLOC_GFP(filter->fo_iobuf_pool, OSS_THREADS_MAX * sizeof(*pool), GFP_KERNEL); if (filter->fo_iobuf_pool == NULL) @@ -1577,7 +1939,8 @@ static int filter_iobuf_pool_init(struct filter_obd *filter) * If we haven't allocated a pool entry for this thread before, do so now. */ void *filter_iobuf_get(struct filter_obd *filter, struct obd_trans_info *oti) { - int thread_id = oti ? oti->oti_thread_id : -1; + int thread_id = (oti && oti->oti_thread) ? + oti->oti_thread->t_id : -1; struct filter_iobuf *pool = NULL; struct filter_iobuf **pool_place = NULL; @@ -1602,10 +1965,9 @@ void *filter_iobuf_get(struct filter_obd *filter, struct obd_trans_info *oti) * 3 = flags: failover=f, failout=n * 4 = mount options */ -int filter_common_setup(struct obd_device *obd, obd_count len, void *buf, +int filter_common_setup(struct obd_device *obd, struct lustre_cfg* lcfg, void *option) { - struct lustre_cfg* lcfg = buf; struct filter_obd *filter = &obd->u.filter; struct vfsmount *mnt; struct lustre_mount_info *lmi; @@ -1613,7 +1975,8 @@ int filter_common_setup(struct obd_device *obd, obd_count len, void *buf, __u8 *uuid_ptr; char *str, *label; char ns_name[48]; - int rc; + request_queue_t *q; + int rc, i; ENTRY; if (lcfg->lcfg_bufcount < 3 || @@ -1633,11 +1996,11 @@ int filter_common_setup(struct obd_device *obd, obd_count len, void *buf, CERROR("Using old MDS mount method\n"); mnt = ll_kern_mount(lustre_cfg_string(lcfg, 2), MS_NOATIME|MS_NODIRATIME, - lustre_cfg_string(lcfg, 1), option); + lustre_cfg_string(lcfg, 1), option); if (IS_ERR(mnt)) { rc = PTR_ERR(mnt); - LCONSOLE_ERROR("Can't mount disk %s (%d)\n", - lustre_cfg_string(lcfg, 1), rc); + LCONSOLE_ERROR_MSG(0x135, "Can't mount disk %s (%d)\n", + lustre_cfg_string(lcfg, 1), rc); RETURN(rc); } @@ -1650,7 +2013,11 @@ int filter_common_setup(struct obd_device *obd, obd_count len, void *buf, if (rc != 0) GOTO(err_ops, rc); - LASSERT(!lvfs_check_rdonly(lvfs_sbdev(mnt->mnt_sb))); + if (lvfs_check_rdonly(lvfs_sbdev(mnt->mnt_sb))) { + CERROR("%s: Underlying device is marked as read-only. " + "Setup failed\n", obd->obd_name); + GOTO(err_ops, rc = -EROFS); + } /* failover is the default */ obd->obd_replayable = 1; @@ -1668,29 +2035,48 @@ int filter_common_setup(struct obd_device *obd, obd_count len, void *buf, filter->fo_fstype = mnt->mnt_sb->s_type->name; CDEBUG(D_SUPER, "%s: mnt = %p\n", filter->fo_fstype, mnt); + fsfilt_setup(obd, obd->u.obt.obt_sb); + OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt); obd->obd_lvfs_ctxt.pwdmnt = mnt; obd->obd_lvfs_ctxt.pwd = mnt->mnt_root; obd->obd_lvfs_ctxt.fs = get_ds(); obd->obd_lvfs_ctxt.cb_ops = filter_lvfs_ops; + init_mutex(&filter->fo_init_lock); + filter->fo_committed_group = 0; + rc = filter_prep(obd); if (rc) GOTO(err_ops, rc); - filter->fo_destroy_in_progress = 0; - sema_init(&filter->fo_create_lock, 1); + filter->fo_destroys_in_progress = 0; + for (i = 0; i < 32; i++) + sema_init(&filter->fo_create_locks[i], 1); + spin_lock_init(&filter->fo_translock); spin_lock_init(&filter->fo_objidlock); - INIT_LIST_HEAD(&filter->fo_export_list); + CFS_INIT_LIST_HEAD(&filter->fo_export_list); sema_init(&filter->fo_alloc_lock, 1); init_brw_stats(&filter->fo_filter_stats); + filter->fo_read_cache = 1; /* enable read-only cache by default */ + filter->fo_writethrough_cache = 1; /* enable writethrough cache */ filter->fo_readcache_max_filesize = FILTER_MAX_CACHE_SIZE; filter->fo_fmd_max_num = FILTER_FMD_MAX_NUM_DEFAULT; filter->fo_fmd_max_age = FILTER_FMD_MAX_AGE_DEFAULT; + CFS_INIT_LIST_HEAD(&filter->fo_llog_list); + spin_lock_init(&filter->fo_llog_list_lock); + + filter->fo_fl_oss_capa = 1; + CFS_INIT_LIST_HEAD(&filter->fo_capa_keys); + filter->fo_capa_hash = init_capa_hash(); + if (filter->fo_capa_hash == NULL) + GOTO(err_ops, rc = -ENOMEM); + sprintf(ns_name, "filter-%s", obd->obd_uuid.uuid); - obd->obd_namespace = ldlm_namespace_new(ns_name, LDLM_NAMESPACE_SERVER); + obd->obd_namespace = ldlm_namespace_new(obd, ns_name, LDLM_NAMESPACE_SERVER, + LDLM_NAMESPACE_GREEDY); if (obd->obd_namespace == NULL) GOTO(err_post, rc = -ENOMEM); obd->obd_namespace->ns_lvbp = obd; @@ -1700,16 +2086,30 @@ int filter_common_setup(struct obd_device *obd, obd_count len, void *buf, ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL, "filter_ldlm_cb_client", &obd->obd_ldlm_client); - rc = llog_cat_initialize(obd, 1, NULL); + rc = obd_llog_init(obd, &obd->obd_olg, obd, 1, NULL, NULL); if (rc) { CERROR("failed to setup llogging subsystems\n"); GOTO(err_post, rc); } + rwlock_init(&filter->fo_sptlrpc_lock); + sptlrpc_rule_set_init(&filter->fo_sptlrpc_rset); + /* do this after llog being initialized */ + filter_adapt_sptlrpc_conf(obd, 1); + rc = lquota_setup(filter_quota_interface_ref, obd); if (rc) GOTO(err_post, rc); + q = bdev_get_queue(mnt->mnt_sb->s_bdev); + if (q->max_sectors < q->max_hw_sectors && + q->max_sectors < PTLRPC_MAX_BRW_SIZE >> 9) + LCONSOLE_INFO("%s: underlying device %s should be tuned " + "for larger I/O requests: max_sectors = %u " + "could be up to max_hw_sectors=%u\n", + obd->obd_name, mnt->mnt_sb->s_id, + q->max_sectors, q->max_hw_sectors); + uuid_ptr = fsfilt_uuid(obd, obd->u.obt.obt_sb); if (uuid_ptr != NULL) { class_uuid_unparse(uuid_ptr, &uuid); @@ -1717,23 +2117,22 @@ int filter_common_setup(struct obd_device *obd, obd_count len, void *buf, } else { str = "no UUID"; } - + label = fsfilt_get_label(obd, obd->u.obt.obt_sb); if (obd->obd_recovering) { LCONSOLE_WARN("OST %s now serving %s (%s%s%s), but will be in " - "recovery until %d %s reconnect, or if no clients" - " reconnect for %d:%.02d; during that time new " - "clients will not be allowed to connect. " + "recovery for at least %d:%.02d, or until %d " + "client%s reconnect. During this time new clients" + " will not be allowed to connect. " "Recovery progress can be monitored by watching " "/proc/fs/lustre/obdfilter/%s/recovery_status.\n", obd->obd_name, lustre_cfg_string(lcfg, 1), label ?: "", label ? "/" : "", str, - obd->obd_recoverable_clients, - (obd->obd_recoverable_clients == 1) - ? "client" : "clients", - (int)(OBD_RECOVERY_TIMEOUT) / 60, - (int)(OBD_RECOVERY_TIMEOUT) % 60, + obd->obd_recovery_timeout / 60, + obd->obd_recovery_timeout % 60, + obd->obd_max_recoverable_clients, + (obd->obd_max_recoverable_clients == 1) ? "":"s", obd->obd_name); } else { LCONSOLE_INFO("OST %s now serving %s (%s%s%s) with recovery " @@ -1755,11 +2154,11 @@ err_mntput: return rc; } -static int filter_setup(struct obd_device *obd, obd_count len, void *buf) +static int filter_setup(struct obd_device *obd, struct lustre_cfg* lcfg) { struct lprocfs_static_vars lvars; - struct lustre_cfg* lcfg = buf; - unsigned long page; + unsigned long addr; + struct page *page; int rc; CLASSERT(offsetof(struct obd_device, u.obt) == @@ -1769,17 +2168,16 @@ static int filter_setup(struct obd_device *obd, obd_count len, void *buf) RETURN(-EINVAL); /* 2.6.9 selinux wants a full option page for do_kern_mount (bug6471) */ - page = get_zeroed_page(GFP_KERNEL); + OBD_PAGE_ALLOC(page, CFS_ALLOC_STD); if (!page) RETURN(-ENOMEM); + addr = (unsigned long)cfs_page_address(page); + clear_page((void *)addr); - memcpy((void *)page, lustre_cfg_buf(lcfg, 4), - LUSTRE_CFG_BUFLEN(lcfg, 4)); - rc = filter_common_setup(obd, len, buf, (void *)page); - free_page(page); - - lprocfs_init_vars(filter, &lvars); - if (rc == 0 && lprocfs_obd_setup(obd, lvars.obd_vars) == 0 && + /* lprocfs must be setup before the filter so state can be safely added + * to /proc incrementally as the filter is setup */ + lprocfs_filter_init_vars(&lvars); + if (lprocfs_obd_setup(obd, lvars.obd_vars) == 0 && lprocfs_alloc_obd_stats(obd, LPROC_FILTER_LAST) == 0) { /* Init obdfilter private stats here */ lprocfs_counter_init(obd->obd_stats, LPROC_FILTER_READ_BYTES, @@ -1788,63 +2186,388 @@ static int filter_setup(struct obd_device *obd, obd_count len, void *buf) lprocfs_counter_init(obd->obd_stats, LPROC_FILTER_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes"); + lprocfs_counter_init(obd->obd_stats, LPROC_FILTER_GET_PAGE, + LPROCFS_CNTR_AVGMINMAX|LPROCFS_CNTR_STDDEV, + "get_page", "usec"); + lprocfs_counter_init(obd->obd_stats, LPROC_FILTER_NO_PAGE, + LPROCFS_CNTR_AVGMINMAX, + "get_page_failures", "num"); + lprocfs_counter_init(obd->obd_stats, LPROC_FILTER_CACHE_ACCESS, + LPROCFS_CNTR_AVGMINMAX, + "cache_access", "pages"); + lprocfs_counter_init(obd->obd_stats, LPROC_FILTER_CACHE_HIT, + LPROCFS_CNTR_AVGMINMAX, + "cache_hit", "pages"); + lprocfs_counter_init(obd->obd_stats, LPROC_FILTER_CACHE_MISS, + LPROCFS_CNTR_AVGMINMAX, + "cache_miss", "pages"); + lproc_filter_attach_seqstat(obd); - obd->obd_proc_exports = proc_mkdir("exports", - obd->obd_proc_entry); + obd->obd_proc_exports_entry = lprocfs_register("exports", + obd->obd_proc_entry, + NULL, NULL); + if (IS_ERR(obd->obd_proc_exports_entry)) { + rc = PTR_ERR(obd->obd_proc_exports_entry); + CERROR("error %d setting up lprocfs for %s\n", + rc, "exports"); + obd->obd_proc_exports_entry = NULL; + } + } + if (obd->obd_proc_exports_entry) + lprocfs_add_simple(obd->obd_proc_exports_entry, "clear", + lprocfs_nid_stats_clear_read, + lprocfs_nid_stats_clear_write, obd, NULL); + + memcpy((void *)addr, lustre_cfg_buf(lcfg, 4), + LUSTRE_CFG_BUFLEN(lcfg, 4)); + rc = filter_common_setup(obd, lcfg, (void *)addr); + OBD_PAGE_FREE(page); + + if (rc) { + lprocfs_remove_proc_entry("clear", obd->obd_proc_exports_entry); + lprocfs_free_per_client_stats(obd); + lprocfs_free_obd_stats(obd); + lprocfs_obd_cleanup(obd); } return rc; } -static struct llog_operations filter_mds_ost_repl_logops /* initialized below*/; +static struct llog_operations filter_mds_ost_repl_logops; + static struct llog_operations filter_size_orig_logops = { - lop_setup: llog_obd_origin_setup, - lop_cleanup: llog_obd_origin_cleanup, - lop_add: llog_obd_origin_add + .lop_setup = llog_obd_origin_setup, + .lop_cleanup = llog_obd_origin_cleanup, + .lop_add = llog_obd_origin_add }; -static int filter_llog_init(struct obd_device *obd, struct obd_device *tgt, - int count, struct llog_catid *catid, - struct obd_uuid *uuid) +static int filter_olg_fini(struct obd_llog_group *olg) +{ + struct llog_ctxt *ctxt; + int rc = 0, rc2 = 0; + ENTRY; + + ctxt = llog_group_get_ctxt(olg, LLOG_MDS_OST_REPL_CTXT); + if (ctxt) + rc = llog_cleanup(ctxt); + + ctxt = llog_group_get_ctxt(olg, LLOG_SIZE_ORIG_CTXT); + if (ctxt) { + rc2 = llog_cleanup(ctxt); + if (!rc) + rc = rc2; + } + + ctxt = llog_group_get_ctxt(olg, LLOG_CONFIG_ORIG_CTXT); + if (ctxt) { + rc2 = llog_cleanup(ctxt); + if (!rc) + rc = rc2; + } + + RETURN(rc); +} + +static int +filter_olg_init(struct obd_device *obd, struct obd_llog_group *olg, + struct obd_device *tgt) +{ + int rc; + ENTRY; + + rc = llog_setup(obd, olg, LLOG_MDS_OST_REPL_CTXT, tgt, 0, NULL, + &filter_mds_ost_repl_logops); + if (rc) + GOTO(cleanup, rc); + + rc = llog_setup(obd, olg, LLOG_SIZE_ORIG_CTXT, tgt, 0, NULL, + &filter_size_orig_logops); + if (rc) + GOTO(cleanup, rc); + EXIT; +cleanup: + if (rc) + filter_olg_fini(olg); + return rc; +} + +/** + * Init the default olg, which is embeded in the obd_device, for filter. + */ +static int +filter_default_olg_init(struct obd_device *obd, struct obd_llog_group *olg, + struct obd_device *tgt) { + struct filter_obd *filter = &obd->u.filter; struct llog_ctxt *ctxt; int rc; ENTRY; + filter->fo_lcm = llog_recov_thread_init(obd->obd_name); + if (!filter->fo_lcm) + RETURN(-ENOMEM); + filter_mds_ost_repl_logops = llog_client_ops; filter_mds_ost_repl_logops.lop_cancel = llog_obd_repl_cancel; - filter_mds_ost_repl_logops.lop_connect = llog_repl_connect; + filter_mds_ost_repl_logops.lop_connect = llog_obd_repl_connect; filter_mds_ost_repl_logops.lop_sync = llog_obd_repl_sync; - rc = llog_setup(obd, LLOG_MDS_OST_REPL_CTXT, tgt, 0, NULL, - &filter_mds_ost_repl_logops); + rc = filter_olg_init(obd, olg, tgt); if (rc) - RETURN(rc); + GOTO(cleanup_lcm, rc); - /* FIXME - assign unlink_cb for filter's recovery */ - ctxt = llog_get_context(obd, LLOG_MDS_OST_REPL_CTXT); + rc = llog_setup(obd, olg, LLOG_CONFIG_ORIG_CTXT, tgt, 0, NULL, + &llog_lvfs_ops); + if (rc) + GOTO(cleanup_olg, rc); + + ctxt = llog_group_get_ctxt(olg, LLOG_MDS_OST_REPL_CTXT); + if (!ctxt) { + CERROR("Can't get ctxt for %p:%x\n", olg, + LLOG_MDS_OST_REPL_CTXT); + GOTO(cleanup_olg, rc = -ENODEV); + } + ctxt->loc_lcm = filter->fo_lcm; ctxt->llog_proc_cb = filter_recov_log_mds_ost_cb; + llog_ctxt_put(ctxt); - rc = llog_setup(obd, LLOG_SIZE_ORIG_CTXT, tgt, 0, NULL, - &filter_size_orig_logops); + RETURN(0); +cleanup_olg: + filter_olg_fini(olg); +cleanup_lcm: + llog_recov_thread_fini(filter->fo_lcm, 1); + filter->fo_lcm = NULL; + return rc; +} + +static int +filter_llog_init(struct obd_device *obd, struct obd_llog_group *olg, + struct obd_device *tgt, int count, struct llog_catid *catid, + struct obd_uuid *uuid) +{ + struct filter_obd *filter = &obd->u.filter; + struct llog_ctxt *ctxt; + int rc; + ENTRY; + + LASSERT(olg != NULL); + if (olg == &obd->obd_olg) + return filter_default_olg_init(obd, olg, tgt); + + LASSERT(filter->fo_lcm != NULL); + rc = filter_olg_init(obd, olg, tgt); + if (rc) + RETURN(rc); + ctxt = llog_group_get_ctxt(olg, LLOG_MDS_OST_REPL_CTXT); + if (!ctxt) { + CERROR("Can't get ctxt for %p:%x\n", olg, + LLOG_MDS_OST_REPL_CTXT); + filter_olg_fini(olg); + RETURN(-ENODEV); + } + ctxt->llog_proc_cb = filter_recov_log_mds_ost_cb; + ctxt->loc_lcm = filter->fo_lcm; + llog_ctxt_put(ctxt); RETURN(rc); } static int filter_llog_finish(struct obd_device *obd, int count) { + struct filter_obd *filter = &obd->u.filter; struct llog_ctxt *ctxt; - int rc = 0, rc2 = 0; ENTRY; - ctxt = llog_get_context(obd, LLOG_MDS_OST_REPL_CTXT); - if (ctxt) - rc = llog_cleanup(ctxt); + ctxt = llog_group_get_ctxt(&obd->obd_olg, LLOG_MDS_OST_REPL_CTXT); + if (ctxt) { + /* + * Make sure that no cached llcds left in recov_thread. + * We actually do sync in disconnect time, but disconnect + * may not come being marked rq_no_resend = 1. + */ + llog_sync(ctxt, NULL); - ctxt = llog_get_context(obd, LLOG_SIZE_ORIG_CTXT); - if (ctxt) - rc2 = llog_cleanup(ctxt); - if (!rc) - rc = rc2; + /* + * Balance class_import_get() in llog_receptor_accept(). + * This is safe to do, as llog is already synchronized + * and its import may go. + */ + mutex_down(&ctxt->loc_sem); + if (ctxt->loc_imp) { + class_import_put(ctxt->loc_imp); + ctxt->loc_imp = NULL; + } + mutex_up(&ctxt->loc_sem); + llog_ctxt_put(ctxt); + } + + if (filter->fo_lcm) { + llog_recov_thread_fini(filter->fo_lcm, obd->obd_force); + filter->fo_lcm = NULL; + } + RETURN(filter_olg_fini(&obd->obd_olg)); +} + +/** + * Find the group llog according to group index in the llog group list. + */ +static struct obd_llog_group * +filter_find_olg_internal(struct filter_obd *filter, int group) +{ + struct obd_llog_group *olg; + + LASSERT_SPIN_LOCKED(&filter->fo_llog_list_lock); + list_for_each_entry(olg, &filter->fo_llog_list, olg_list) { + if (olg->olg_group == group) + RETURN(olg); + } + RETURN(NULL); +} + +/** + * Find the group llog according to group index on the filter + */ +struct obd_llog_group *filter_find_olg(struct obd_device *obd, int group) +{ + struct obd_llog_group *olg = NULL; + struct filter_obd *filter; + + filter = &obd->u.filter; + + if (group == FILTER_GROUP_LLOG) + RETURN(&obd->obd_olg); + + spin_lock(&filter->fo_llog_list_lock); + olg = filter_find_olg_internal(filter, group); + spin_unlock(&filter->fo_llog_list_lock); + + RETURN(olg); +} +/** + * Find the llog_group of the filter according to the group. If it can not + * find, create the llog_group, which only happens when mds is being synced + * with OST. + */ +struct obd_llog_group *filter_find_create_olg(struct obd_device *obd, int group) +{ + struct obd_llog_group *olg = NULL; + struct filter_obd *filter; + int rc; + + filter = &obd->u.filter; + + if (group == FILTER_GROUP_LLOG) + RETURN(&obd->obd_olg); + + spin_lock(&filter->fo_llog_list_lock); + olg = filter_find_olg_internal(filter, group); + if (olg) { + if (olg->olg_initializing) { + GOTO(out_unlock, olg = ERR_PTR(-EBUSY)); + } else { + GOTO(out_unlock, olg); + } + } + OBD_ALLOC_PTR(olg); + if (olg == NULL) + GOTO(out_unlock, olg = ERR_PTR(-ENOMEM)); + + llog_group_init(olg, group); + list_add(&olg->olg_list, &filter->fo_llog_list); + olg->olg_initializing = 1; + spin_unlock(&filter->fo_llog_list_lock); + + rc = llog_cat_initialize(obd, olg, 1, NULL); + if (rc) { + spin_lock(&filter->fo_llog_list_lock); + list_del(&olg->olg_list); + spin_unlock(&filter->fo_llog_list_lock); + OBD_FREE_PTR(olg); + GOTO(out, olg = ERR_PTR(-ENOMEM)); + } + spin_lock(&filter->fo_llog_list_lock); + olg->olg_initializing = 0; + spin_unlock(&filter->fo_llog_list_lock); + CDEBUG(D_OTHER, "%s: new llog group %u (0x%p)\n", + obd->obd_name, group, olg); +out: + RETURN(olg); + +out_unlock: + spin_unlock(&filter->fo_llog_list_lock); + GOTO(out, olg); +} + +static int filter_llog_connect(struct obd_export *exp, + struct llogd_conn_body *body) +{ + struct obd_device *obd = exp->exp_obd; + struct llog_ctxt *ctxt; + struct obd_llog_group *olg; + int rc; + ENTRY; + + CDEBUG(D_OTHER, "%s: LLog connect for: "LPX64"/"LPX64":%x\n", + obd->obd_name, body->lgdc_logid.lgl_oid, + body->lgdc_logid.lgl_ogr, body->lgdc_logid.lgl_ogen); + + olg = filter_find_olg(obd, body->lgdc_logid.lgl_ogr); + if (!olg) { + CERROR(" %s: can not find olg of group %d\n", + obd->obd_name, (int)body->lgdc_logid.lgl_ogr); + RETURN(-ENOENT); + } + llog_group_set_export(olg, exp); + + ctxt = llog_group_get_ctxt(olg, body->lgdc_ctxt_idx); + LASSERTF(ctxt != NULL, "ctxt is not null, ctxt idx %d \n", + body->lgdc_ctxt_idx); + + CWARN("%s: Recovery from log "LPX64"/"LPX64":%x\n", + obd->obd_name, body->lgdc_logid.lgl_oid, + body->lgdc_logid.lgl_ogr, body->lgdc_logid.lgl_ogen); + + rc = llog_connect(ctxt, &body->lgdc_logid, + &body->lgdc_gen, NULL); + llog_ctxt_put(ctxt); + if (rc != 0) + CERROR("failed to connect rc %d idx %d\n", rc, + body->lgdc_ctxt_idx); + + RETURN(rc); +} + +static int filter_llog_preclean(struct obd_device *obd) +{ + struct obd_llog_group *olg, *tmp; + struct filter_obd *filter; + struct list_head remove_list; + int rc = 0; + ENTRY; + + rc = obd_llog_finish(obd, 0); + if (rc) + CERROR("failed to cleanup llogging subsystem\n"); + + filter = &obd->u.filter; + CFS_INIT_LIST_HEAD(&remove_list); + + spin_lock(&filter->fo_llog_list_lock); + while (!list_empty(&filter->fo_llog_list)) { + olg = list_entry(filter->fo_llog_list.next, + struct obd_llog_group, olg_list); + list_del(&olg->olg_list); + list_add(&olg->olg_list, &remove_list); + } + spin_unlock(&filter->fo_llog_list_lock); + + list_for_each_entry_safe(olg, tmp, &remove_list, olg_list) { + list_del_init(&olg->olg_list); + rc = filter_olg_fini(olg); + if (rc) + CERROR("failed to cleanup llogging subsystem for %u\n", + olg->olg_group); + OBD_FREE_PTR(olg); + } RETURN(rc); } @@ -1860,11 +2583,7 @@ static int filter_precleanup(struct obd_device *obd, break; case OBD_CLEANUP_EXPORTS: target_cleanup_recovery(obd); - break; - case OBD_CLEANUP_SELF_EXP: - rc = filter_llog_finish(obd, 0); - break; - case OBD_CLEANUP_OBD: + rc = filter_llog_preclean(obd); break; } RETURN(rc); @@ -1888,21 +2607,28 @@ static int filter_cleanup(struct obd_device *obd) } } - lprocfs_obd_cleanup(obd); + lprocfs_remove_proc_entry("clear", obd->obd_proc_exports_entry); + lprocfs_free_per_client_stats(obd); lprocfs_free_obd_stats(obd); - + lprocfs_obd_cleanup(obd); lquota_cleanup(filter_quota_interface_ref, obd); - ldlm_namespace_free(obd->obd_namespace, obd->obd_force); + /* Stop recovery before namespace cleanup. */ + target_stop_recovery_thread(obd); + target_cleanup_recovery(obd); + + ldlm_namespace_free(obd->obd_namespace, NULL, obd->obd_force); + obd->obd_namespace = NULL; + + sptlrpc_rule_set_free(&filter->fo_sptlrpc_rset); if (obd->u.obt.obt_sb == NULL) RETURN(0); filter_post(obd); - shrink_dcache_parent(obd->u.obt.obt_sb->s_root); - LL_DQUOT_OFF(obd->u.obt.obt_sb); + shrink_dcache_sb(obd->u.obt.obt_sb); server_put_mount(obd->obd_name, filter->fo_vfsmnt); obd->u.obt.obt_sb = NULL; @@ -1919,6 +2645,8 @@ static int filter_cleanup(struct obd_device *obd) static int filter_connect_internal(struct obd_export *exp, struct obd_connect_data *data) { + struct filter_export_data *fed = &exp->exp_filter_data; + if (!data) RETURN(0); @@ -1928,30 +2656,49 @@ static int filter_connect_internal(struct obd_export *exp, data->ocd_connect_flags, data->ocd_version, data->ocd_grant, data->ocd_index); + if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) { + CWARN("!!! This export (nid %s) used object group %d " + "earlier; now it's trying to use group %d! This could " + "be a bug in the MDS. Please report to " + "http://bugzilla.lustre.org/\n", + obd_export_nid2str(exp), fed->fed_group,data->ocd_group); + RETURN(-EPROTO); + } + fed->fed_group = data->ocd_group; + data->ocd_connect_flags &= OST_CONNECT_SUPPORTED; exp->exp_connect_flags = data->ocd_connect_flags; data->ocd_version = LUSTRE_VERSION_CODE; + /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */ + if (!ergo(data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN, + data->ocd_connect_flags & OBD_CONNECT_MDS)) + RETURN(-EPROTO); + if (exp->exp_connect_flags & OBD_CONNECT_GRANT) { + struct filter_obd *filter = &exp->exp_obd->u.filter; obd_size left, want; spin_lock(&exp->exp_obd->obd_osfs_lock); left = filter_grant_space_left(exp); want = data->ocd_grant; - data->ocd_grant = filter_grant(exp, 0, want, left); + filter_grant(exp, fed->fed_grant, want, left); + data->ocd_grant = fed->fed_grant; spin_unlock(&exp->exp_obd->obd_osfs_lock); CDEBUG(D_CACHE, "%s: cli %s/%p ocd_grant: %d want: " LPU64" left: "LPU64"\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp, data->ocd_grant, want, left); + + filter->fo_tot_granted_clients ++; } if (data->ocd_connect_flags & OBD_CONNECT_INDEX) { struct filter_obd *filter = &exp->exp_obd->u.filter; struct lr_server_data *lsd = filter->fo_fsd; int index = le32_to_cpu(lsd->lsd_ost_index); - + if (!(lsd->lsd_feature_compat & cpu_to_le32(OBD_COMPAT_OST))) { /* this will only happen on the first connect */ @@ -1960,11 +2707,12 @@ static int filter_connect_internal(struct obd_export *exp, filter_update_server_data(exp->exp_obd, filter->fo_rcvd_filp, lsd, 1); } else if (index != data->ocd_index) { - LCONSOLE_ERROR("Connection from %s to index %u doesn't " - "match actual OST index %u in last_rcvd " - "file, bad configuration?\n", - obd_export_nid2str(exp), index, - data->ocd_index); + LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index" + " %u doesn't match actual OST index" + " %u in last_rcvd file, bad " + "configuration?\n", + obd_export_nid2str(exp), index, + data->ocd_index); RETURN(-EBADF); } } @@ -1973,8 +2721,32 @@ static int filter_connect_internal(struct obd_export *exp, data->ocd_brw_size = 65536; } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) { data->ocd_brw_size = min(data->ocd_brw_size, - (__u32)(PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT)); - LASSERT(data->ocd_brw_size); + (__u32)(PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT)); + LASSERT(data->ocd_brw_size); + } + + if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) { + __u32 cksum_types = data->ocd_cksum_types; + + /* The client set in ocd_cksum_types the checksum types it + * supports. We have to mask off the algorithms that we don't + * support */ + if (cksum_types & OBD_CKSUM_ALL) + data->ocd_cksum_types &= OBD_CKSUM_ALL; + else + data->ocd_cksum_types = OBD_CKSUM_CRC32; + + CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return " + "%x\n", exp->exp_obd->obd_name, + obd_export_nid2str(exp), cksum_types, + data->ocd_cksum_types); + } else { + /* This client does not support OBD_CONNECT_CKSUM + * fall back to CRC32 */ + CDEBUG(D_RPCTRACE, "%s: cli %s does not support " + "OBD_CONNECT_CKSUM, CRC32 will be used\n", + exp->exp_obd->obd_name, + obd_export_nid2str(exp)); } /* FIXME: Do the same with the MDS UUID and fsd_peeruuid. @@ -1985,9 +2757,11 @@ static int filter_connect_internal(struct obd_export *exp, RETURN(0); } -static int filter_reconnect(struct obd_export *exp, struct obd_device *obd, +static int filter_reconnect(const struct lu_env *env, + struct obd_export *exp, struct obd_device *obd, struct obd_uuid *cluuid, - struct obd_connect_data *data) + struct obd_connect_data *data, + void *localdata) { int rc; ENTRY; @@ -1996,63 +2770,82 @@ static int filter_reconnect(struct obd_export *exp, struct obd_device *obd, RETURN(-EINVAL); rc = filter_connect_internal(exp, data); + if (rc == 0) + filter_export_stats_init(obd, exp, localdata); RETURN(rc); } /* nearly identical to mds_connect */ -static int filter_connect(struct lustre_handle *conn, struct obd_device *obd, +static int filter_connect(const struct lu_env *env, + struct obd_export **exp, struct obd_device *obd, struct obd_uuid *cluuid, - struct obd_connect_data *data) + struct obd_connect_data *data, void *localdata) { - struct obd_export *exp; + struct lvfs_run_ctxt saved; + struct lustre_handle conn = { 0 }; + struct obd_export *lexp; struct filter_export_data *fed; - struct filter_client_data *fcd = NULL; + struct lsd_client_data *lcd = NULL; + __u32 group; int rc; ENTRY; - if (conn == NULL || obd == NULL || cluuid == NULL) + if (exp == NULL || obd == NULL || cluuid == NULL) RETURN(-EINVAL); - rc = class_connect(conn, obd, cluuid); + rc = class_connect(&conn, obd, cluuid); if (rc) RETURN(rc); - exp = class_conn2export(conn); - LASSERT(exp != NULL); + lexp = class_conn2export(&conn); + LASSERT(lexp != NULL); - fed = &exp->exp_filter_data; + fed = &lexp->exp_filter_data; - rc = filter_connect_internal(exp, data); + rc = filter_connect_internal(lexp, data); if (rc) GOTO(cleanup, rc); - filter_export_stats_init(obd, exp); - - if (!obd->obd_replayable) - GOTO(cleanup, rc = 0); + filter_export_stats_init(obd, lexp, localdata); + if (obd->obd_replayable) { + OBD_ALLOC(lcd, sizeof(*lcd)); + if (!lcd) { + CERROR("filter: out of memory for client data\n"); + GOTO(cleanup, rc = -ENOMEM); + } - OBD_ALLOC(fcd, sizeof(*fcd)); - if (!fcd) { - CERROR("filter: out of memory for client data\n"); - GOTO(cleanup, rc = -ENOMEM); + memcpy(lcd->lcd_uuid, cluuid, sizeof(lcd->lcd_uuid)); + fed->fed_lcd = lcd; + rc = filter_client_add(obd, lexp, -1); + if (rc) + GOTO(cleanup, rc); } - memcpy(fcd->fcd_uuid, cluuid, sizeof(fcd->fcd_uuid)); - fed->fed_fcd = fcd; + group = data->ocd_group; + + CWARN("%s: Received MDS connection ("LPX64"); group %d\n", + obd->obd_name, lexp->exp_handle.h_cookie, group); - rc = filter_client_add(obd, exp, -1); + push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); + rc = filter_read_groups(obd, group, 1); + pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); + if (rc != 0) { + CERROR("can't read group %u\n", group); + GOTO(cleanup, rc); + } GOTO(cleanup, rc); cleanup: if (rc) { - if (fcd) { - OBD_FREE(fcd, sizeof(*fcd)); - fed->fed_fcd = NULL; + if (lcd) { + OBD_FREE_PTR(lcd); + fed->fed_lcd = NULL; } - class_disconnect(exp); + class_disconnect(lexp); + *exp = NULL; } else { - class_export_put(exp); + *exp = lexp; } RETURN(rc); @@ -2072,6 +2865,11 @@ static void filter_grant_sanity_check(struct obd_device *obd, const char *func) if (list_empty(&obd->obd_exports)) return; + /* We don't want to do this for large machines that do lots of + mounts or unmounts. It burns... */ + if (obd->obd_num_exports > 100) + return; + spin_lock(&obd->obd_osfs_lock); spin_lock(&obd->obd_dev_lock); list_for_each_entry(exp, &obd->obd_exports, exp_obd_chain) { @@ -2174,12 +2972,14 @@ static int filter_destroy_export(struct obd_export *exp) exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp, exp->exp_filter_data.fed_pending); + lquota_clearinfo(filter_quota_interface_ref, exp, exp->exp_obd); + target_destroy_export(exp); + ldlm_destroy_export(exp); if (obd_uuid_equals(&exp->exp_client_uuid, &exp->exp_obd->obd_uuid)) RETURN(0); - lprocfs_exp_cleanup(exp); if (exp->exp_obd->obd_replayable) filter_client_free(exp); @@ -2189,18 +2989,77 @@ static int filter_destroy_export(struct obd_export *exp) filter_grant_discard(exp); filter_fmd_cleanup(exp); + if (exp->exp_connect_flags & OBD_CONNECT_GRANT_SHRINK) { + struct filter_obd *filter = &exp->exp_obd->u.filter; + if (filter->fo_tot_granted_clients > 0) + filter->fo_tot_granted_clients --; + } + if (!(exp->exp_flags & OBD_OPT_FORCE)) filter_grant_sanity_check(exp->exp_obd, __FUNCTION__); RETURN(0); } -/* also incredibly similar to mds_disconnect */ +static void filter_sync_llogs(struct obd_device *obd, struct obd_export *dexp) +{ + struct obd_llog_group *olg_min, *olg; + struct filter_obd *filter; + int worked = -1, group; + struct llog_ctxt *ctxt; + ENTRY; + + filter = &obd->u.filter; + + /* we can't sync log holding spinlock. also, we do not want to get + * into livelock. so we do following: loop over MDS's exports in + * group order and skip already synced llogs -bzzz */ + do { + /* look for group with min. number, but > worked */ + olg_min = NULL; + group = 1 << 30; + spin_lock(&filter->fo_llog_list_lock); + list_for_each_entry(olg, &filter->fo_llog_list, olg_list) { + if (olg->olg_group <= worked) { + /* this group is already synced */ + continue; + } + if (group < olg->olg_group) { + /* we have group with smaller number to sync */ + continue; + } + /* store current minimal group */ + olg_min = olg; + group = olg->olg_group; + } + spin_unlock(&filter->fo_llog_list_lock); + + if (olg_min == NULL) + break; + + worked = olg_min->olg_group; + if (olg_min->olg_exp && + (dexp == olg_min->olg_exp || dexp == NULL)) { + int err; + ctxt = llog_group_get_ctxt(olg_min, + LLOG_MDS_OST_REPL_CTXT); + if (ctxt) { + err = llog_sync(ctxt, olg_min->olg_exp); + llog_ctxt_put(ctxt); + if (err) { + CERROR("error flushing logs to MDS: " + "rc %d\n", err); + } + } + } + } while (olg_min != NULL); +} + +/* Also incredibly similar to mds_disconnect */ static int filter_disconnect(struct obd_export *exp) { struct obd_device *obd = exp->exp_obd; - struct llog_ctxt *ctxt; - int rc, err; + int rc; ENTRY; LASSERT(exp); @@ -2210,21 +3069,38 @@ static int filter_disconnect(struct obd_export *exp) filter_grant_sanity_check(obd, __FUNCTION__); filter_grant_discard(exp); + /* Flush any remaining cancel messages out to the target */ + filter_sync_llogs(obd, exp); + + lquota_clearinfo(filter_quota_interface_ref, exp, exp->exp_obd); + /* Disconnect early so that clients can't keep using export */ rc = class_disconnect(exp); if (exp->exp_obd->obd_namespace != NULL) ldlm_cancel_locks_for_export(exp); - /* flush any remaining cancel messages out to the target */ - ctxt = llog_get_context(obd, LLOG_MDS_OST_REPL_CTXT); - err = llog_sync(ctxt, exp); - if (err) - CERROR("error flushing logs to MDS: rc %d\n", err); + fsfilt_sync(obd, obd->u.obt.obt_sb); + + lprocfs_exp_cleanup(exp); class_export_put(exp); RETURN(rc); } +/* reverse import is changed, sync all cancels */ +static void filter_revimp_update(struct obd_export *exp) +{ + ENTRY; + + LASSERT(exp); + class_export_get(exp); + + /* flush any remaining cancel messages out to the target */ + filter_sync_llogs(exp->exp_obd, exp); + class_export_put(exp); + EXIT; +} + static int filter_ping(struct obd_export *exp) { filter_fmd_expire(exp); @@ -2236,15 +3112,16 @@ struct dentry *__filter_oa2dentry(struct obd_device *obd, struct obdo *oa, const char *what, int quiet) { struct dentry *dchild = NULL; + obd_gr group = 0; - if (!(oa->o_valid & OBD_MD_FLGROUP)) - oa->o_gr = 0; + if (oa->o_valid & OBD_MD_FLGROUP) + group = oa->o_gr; - dchild = filter_fid2dentry(obd, NULL, oa->o_gr, oa->o_id); + dchild = filter_fid2dentry(obd, NULL, group, oa->o_id); if (IS_ERR(dchild)) { - CERROR("%s error looking up object: "LPU64"\n", - what, oa->o_id); + CERROR("%s error looking up object: "LPU64":"LPU64"\n", + what, group, oa->o_id); RETURN(dchild); } @@ -2266,6 +3143,11 @@ static int filter_getattr(struct obd_export *exp, struct obd_info *oinfo) int rc = 0; ENTRY; + rc = filter_auth_capa(exp, NULL, oinfo_mdsno(oinfo), + oinfo_capa(oinfo), CAPA_OPC_META_READ); + if (rc) + RETURN(rc); + obd = class_exp2obd(exp); if (obd == NULL) { CDEBUG(D_IOCTL, "invalid client export %p\n", exp); @@ -2298,7 +3180,6 @@ int filter_update_fidea(struct obd_export *exp, struct inode *inode, if (!(oa->o_valid & OBD_MD_FLGROUP)) oa->o_gr = 0; - /* packing fid and converting it to LE for storing into EA. * Here ->o_stripe_idx should be filled by LOV and rest of * fields - by client. */ @@ -2329,7 +3210,8 @@ int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry, unsigned int orig_ids[MAXQUOTAS] = {0, 0}; struct llog_cookie *fcc = NULL; struct filter_obd *filter; - int rc, err, locked = 0; + int rc, err, locked = 0, sync = 0; + loff_t old_size = 0; unsigned int ia_valid; struct inode *inode; struct iattr iattr; @@ -2349,12 +3231,13 @@ int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry, if (oa->o_valid & OBD_MD_FLCOOKIE) { OBD_ALLOC(fcc, sizeof(*fcc)); if (fcc != NULL) - memcpy(fcc, obdo_logcookie(oa), sizeof(*fcc)); + *fcc = oa->o_lcookie; } if (ia_valid & ATTR_SIZE || ia_valid & (ATTR_UID | ATTR_GID)) { DQUOT_INIT(inode); LOCK_INODE_MUTEX(inode); + old_size = i_size_read(inode); locked = 1; } @@ -2387,7 +3270,6 @@ int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry, orig_ids[GRPQUOTA] = inode->i_gid; handle = fsfilt_start_log(exp->exp_obd, inode, FSFILT_OP_SETATTR, oti, 1); - if (IS_ERR(handle)) GOTO(out_unlock, rc = PTR_ERR(handle)); @@ -2399,28 +3281,19 @@ int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry, } else { handle = fsfilt_start(exp->exp_obd, inode, FSFILT_OP_SETATTR, oti); - if (IS_ERR(handle)) GOTO(out_unlock, rc = PTR_ERR(handle)); } - if (oa->o_valid & OBD_MD_FLFLAGS) { rc = fsfilt_iocontrol(exp->exp_obd, inode, NULL, EXT3_IOC_SETFLAGS, (long)&oa->o_flags); } else { rc = fsfilt_setattr(exp->exp_obd, dentry, handle, &iattr, 1); - if (fcc != NULL) { + if (fcc != NULL) /* set cancel cookie callback function */ - if (fsfilt_add_journal_cb(exp->exp_obd, 0, handle, - filter_cancel_cookies_cb, - fcc)) { - spin_lock(&exp->exp_lock); - exp->exp_need_sync = 1; - spin_unlock(&exp->exp_lock); - } else { - fcc = NULL; - } - } + sync = fsfilt_add_journal_cb(exp->exp_obd, 0, handle, + filter_cancel_cookies_cb, + fcc); } if (OBD_FAIL_CHECK(OBD_FAIL_OST_SETATTR_CREDITS)) @@ -2429,23 +3302,33 @@ int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry, /* The truncate might have used up our transaction credits. Make * sure we have one left for the last_rcvd update. */ err = fsfilt_extend(exp->exp_obd, inode, 1, handle); - rc = filter_finish_transno(exp, oti, rc); + + rc = filter_finish_transno(exp, oti, rc, sync); + if (sync) { + filter_cancel_cookies_cb(exp->exp_obd, 0, fcc, rc); + fcc = NULL; + } err = fsfilt_commit(exp->exp_obd, inode, handle, 0); if (err) { CERROR("error on commit, err = %d\n", err); if (!rc) rc = err; + } else { + fcc = NULL; + } + + /* For a partial-page truncate flush the page to disk immediately + * to avoid data corruption during direct disk write. b=17397 */ + if (!sync && (iattr.ia_valid & ATTR_SIZE) && + old_size != iattr.ia_size && (iattr.ia_size & ~CFS_PAGE_MASK)) { + err = filemap_fdatawrite_range(inode->i_mapping, iattr.ia_size, + iattr.ia_size + 1); + if (!rc) + rc = err; } if (locked) { - /* Let's flush truncated page on disk immediately, then we can - * avoid need to search for page aliases before directio writes - * and this sort of stuff at expense of somewhat slower - * truncates not on a page boundary. I believe this is the only - * place in filter code that can lead to pages getting to - * pagecache so far. */ - filter_clear_truncated_page(inode); UNLOCK_INODE_MUTEX(inode); locked = 0; } @@ -2461,7 +3344,8 @@ out_unlock: /* trigger quota release */ if (ia_valid & (ATTR_SIZE | ATTR_UID | ATTR_GID)) { unsigned int cur_ids[MAXQUOTAS] = {oa->o_uid, oa->o_gid}; - int rc2 = lquota_adjust(filter_quota_interface_ref, exp->exp_obd, cur_ids, + int rc2 = lquota_adjust(filter_quota_interface_ref, + exp->exp_obd, cur_ids, orig_ids, rc, FSFILT_OP_SETATTR); CDEBUG(rc2 ? D_ERROR : D_QUOTA, "filter adjust qunit. (rc:%d)\n", rc2); @@ -2473,18 +3357,52 @@ out_unlock: int filter_setattr(struct obd_export *exp, struct obd_info *oinfo, struct obd_trans_info *oti) { - struct ldlm_res_id res_id = { .name = { oinfo->oi_oa->o_id } }; - struct ldlm_valblock_ops *ns_lvbo; + struct obdo *oa = oinfo->oi_oa; + struct lustre_capa *capa = oinfo_capa(oinfo); + struct ldlm_res_id res_id; struct filter_mod_data *fmd; struct lvfs_run_ctxt saved; struct filter_obd *filter; struct ldlm_resource *res; struct dentry *dentry; + __u64 opc = CAPA_OPC_META_WRITE; int rc; ENTRY; - dentry = __filter_oa2dentry(exp->exp_obd, oinfo->oi_oa, - __FUNCTION__, 1); + if (oa->o_valid & OBD_FL_TRUNC) + opc |= CAPA_OPC_OSS_TRUNC; + rc = filter_auth_capa(exp, NULL, obdo_mdsno(oa), capa, opc); + if (rc) + RETURN(rc); + + if (oa->o_valid & (OBD_MD_FLUID | OBD_MD_FLGID)) { + rc = filter_capa_fixoa(exp, oa, obdo_mdsno(oa), capa); + if (rc) + RETURN(rc); + } + + osc_build_res_name(oa->o_id, oa->o_gr, &res_id); + /* This would be very bad - accidentally truncating a file when + * changing the time or similar - bug 12203. */ + if (oa->o_valid & OBD_MD_FLSIZE && + oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) { + static char mdsinum[48]; + + if (oa->o_valid & OBD_MD_FLFID) + snprintf(mdsinum, sizeof(mdsinum) - 1, + " of inode "LPU64"/%u", oa->o_fid, + oa->o_generation); + else + mdsinum[0] = '\0'; + + CERROR("%s: setattr from %s trying to truncate objid "LPU64 + " %s\n", + exp->exp_obd->obd_name, obd_export_nid2str(exp), + oa->o_id, mdsinum); + RETURN(-EPERM); + } + + dentry = __filter_oa2dentry(exp->exp_obd, oa, __FUNCTION__, 1); if (IS_ERR(dentry)) RETURN(PTR_ERR(dentry)); @@ -2492,33 +3410,33 @@ int filter_setattr(struct obd_export *exp, struct obd_info *oinfo, push_ctxt(&saved, &exp->exp_obd->obd_lvfs_ctxt, NULL); lock_kernel(); - if (oinfo->oi_oa->o_valid & + if (oa->o_valid & (OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME)) { - fmd = filter_fmd_get(exp,oinfo->oi_oa->o_id,oinfo->oi_oa->o_gr); + fmd = filter_fmd_get(exp, oa->o_id, oa->o_gr); if (fmd && fmd->fmd_mactime_xid < oti->oti_xid) fmd->fmd_mactime_xid = oti->oti_xid; filter_fmd_put(exp, fmd); } /* setting objects attributes (including owner/group) */ - rc = filter_setattr_internal(exp, dentry, oinfo->oi_oa, oti); + rc = filter_setattr_internal(exp, dentry, oa, oti); if (rc) GOTO(out_unlock, rc); res = ldlm_resource_get(exp->exp_obd->obd_namespace, NULL, - res_id, LDLM_EXTENT, 0); + &res_id, LDLM_EXTENT, 0); if (res != NULL) { - ns_lvbo = res->lr_namespace->ns_lvbo; - if (ns_lvbo && ns_lvbo->lvbo_update) - rc = ns_lvbo->lvbo_update(res, NULL, 0, 0); + LDLM_RESOURCE_ADDREF(res); + rc = ldlm_res_lvbo_update(res, NULL, 0, 0); + LDLM_RESOURCE_DELREF(res); ldlm_resource_putref(res); } - oinfo->oi_oa->o_valid = OBD_MD_FLID; + oa->o_valid = OBD_MD_FLID; /* Quota release need uid/gid info */ - obdo_from_inode(oinfo->oi_oa, dentry->d_inode, + obdo_from_inode(oa, dentry->d_inode, FILTER_VALID_FLAGS | OBD_MD_FLUID | OBD_MD_FLGID); EXIT; @@ -2565,6 +3483,7 @@ static int filter_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, OBD_ALLOC(*lsmp, lsm_size); if (*lsmp == NULL) RETURN(-ENOMEM); + OBD_ALLOC((*lsmp)->lsm_oinfo[0], sizeof(struct lov_oinfo)); if ((*lsmp)->lsm_oinfo[0] == NULL) { OBD_FREE(*lsmp, lsm_size); @@ -2584,54 +3503,68 @@ static int filter_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, RETURN(lsm_size); } -/* caller must hold fo_create_lock */ +/* caller must hold fo_create_locks[oa->o_gr] */ static int filter_destroy_precreated(struct obd_export *exp, struct obdo *oa, - struct filter_obd *filter) + struct filter_obd *filter) { struct obdo doa; /* XXX obdo on stack */ obd_id last, id; - int rc; + int rc = 0; + int skip_orphan; ENTRY; LASSERT(oa); - LASSERT(down_trylock(&filter->fo_create_lock) != 0); + LASSERT_MDS_GROUP(oa->o_gr); + LASSERT(oa->o_valid & OBD_MD_FLGROUP); + LASSERT(down_trylock(&filter->fo_create_locks[oa->o_gr]) != 0); memset(&doa, 0, sizeof(doa)); - if (oa->o_valid & OBD_MD_FLGROUP) { - doa.o_valid |= OBD_MD_FLGROUP; - doa.o_gr = oa->o_gr; - } else { - doa.o_gr = 0; - } + + doa.o_valid |= OBD_MD_FLGROUP; + doa.o_gr = oa->o_gr; doa.o_mode = S_IFREG; - if (!filter->fo_destroy_in_progress) { - CERROR("%s: destroy_in_progress already cleared\n", - exp->exp_obd->obd_name); + if (!test_bit(doa.o_gr, &filter->fo_destroys_in_progress)) { + CERROR("%s:["LPU64"] destroys_in_progress already cleared\n", + exp->exp_obd->obd_name, doa.o_gr); RETURN(0); } last = filter_last_id(filter, doa.o_gr); - CWARN("%s: deleting orphan objects from "LPU64" to "LPU64"\n", - exp->exp_obd->obd_name, oa->o_id + 1, last); + + skip_orphan = !!(exp->exp_connect_flags & OBD_CONNECT_SKIP_ORPHAN); + + CWARN("%s: deleting orphan objects from "LPU64" to "LPU64"%s\n", + exp->exp_obd->obd_name, oa->o_id + 1, last, + skip_orphan ? ", orphan objids won't be reused any more." : "."); + for (id = last; id > oa->o_id; id--) { doa.o_id = id; - rc = filter_destroy(exp, &doa, NULL, NULL, NULL); + rc = filter_destroy(exp, &doa, NULL, NULL, NULL, NULL); if (rc && rc != -ENOENT) /* this is pretty fatal... */ CEMERG("error destroying precreate objid "LPU64": %d\n", id, rc); - filter_set_last_id(filter, id - 1, doa.o_gr); + /* update last_id on disk periodically so that if we restart * we don't need to re-scan all of the just-deleted objects. */ - if ((id & 511) == 0) + if ((id & 511) == 0 && !skip_orphan) { + filter_set_last_id(filter, id - 1, doa.o_gr); filter_update_last_objid(exp->exp_obd, doa.o_gr, 0); + } } CDEBUG(D_HA, "%s: after destroy: set last_objids["LPU64"] = "LPU64"\n", exp->exp_obd->obd_name, doa.o_gr, oa->o_id); - rc = filter_update_last_objid(exp->exp_obd, doa.o_gr, 1); - filter->fo_destroy_in_progress = 0; + if (!skip_orphan) { + filter_set_last_id(filter, id, doa.o_gr); + rc = filter_update_last_objid(exp->exp_obd, doa.o_gr, 1); + } else { + /* don't reuse orphan object, return last used objid */ + oa->o_id = last; + rc = 0; + } + clear_bit(doa.o_gr, &filter->fo_destroys_in_progress); RETURN(rc); } @@ -2649,23 +3582,30 @@ static int filter_handle_precreate(struct obd_export *exp, struct obdo *oa, /* delete orphans request */ if ((oa->o_valid & OBD_MD_FLFLAGS) && (oa->o_flags & OBD_FL_DELORPHAN)){ + obd_id last = filter_last_id(filter, group); + if (oti->oti_conn_cnt < exp->exp_conn_cnt) { CERROR("%s: dropping old orphan cleanup request\n", obd->obd_name); RETURN(0); } - /* This causes inflight precreates to abort and drop lock */ - filter->fo_destroy_in_progress = 1; - down(&filter->fo_create_lock); - diff = oa->o_id - filter_last_id(filter, group); + set_bit(group, &filter->fo_destroys_in_progress); + down(&filter->fo_create_locks[group]); + if (!test_bit(group, &filter->fo_destroys_in_progress)) { + CERROR("%s:["LPU64"] destroys_in_progress already cleared\n", + exp->exp_obd->obd_name, group); + up(&filter->fo_create_locks[group]); + RETURN(0); + } + diff = oa->o_id - last; CDEBUG(D_HA, "filter_last_id() = "LPU64" -> diff = %d\n", - filter_last_id(filter, group), diff); + last, diff); if (-diff > OST_MAX_PRECREATE) { CERROR("%s: ignoring bogus orphan destroy request: " "obdid "LPU64" last_id "LPU64"\n", obd->obd_name, - oa->o_id, filter_last_id(filter, group)); + oa->o_id, last); /* FIXME: should reset precreate_next_id on MDS */ GOTO(out, rc = -EINVAL); } @@ -2676,22 +3616,22 @@ static int filter_handle_precreate(struct obd_export *exp, struct obdo *oa, "orphans were deleted\n", obd->obd_name); GOTO(out, rc); } else { - /*XXX used by MDS for the first time! */ - filter->fo_destroy_in_progress = 0; + /* XXX: Used by MDS for the first time! */ + clear_bit(group, &filter->fo_destroys_in_progress); } } else { - down(&filter->fo_create_lock); + down(&filter->fo_create_locks[group]); if (oti->oti_conn_cnt < exp->exp_conn_cnt) { CERROR("%s: dropping old precreate request\n", obd->obd_name); GOTO(out, rc = 0); } /* only precreate if group == 0 and o_id is specfied */ - if (group != 0 || oa->o_id == 0) + if (group == FILTER_GROUP_LLOG || oa->o_id == 0) diff = 1; else diff = oa->o_id - filter_last_id(filter, group); - CDEBUG(D_HA, "filter_last_id() = "LPU64" -> diff = %d\n", + CDEBUG(D_RPCTRACE, "filter_last_id() = "LPU64" -> diff = %d\n", filter_last_id(filter, group), diff); LASSERTF(diff >= 0,"%s: "LPU64" - "LPU64" = %d\n",obd->obd_name, @@ -2702,18 +3642,19 @@ static int filter_handle_precreate(struct obd_export *exp, struct obdo *oa, oa->o_id = filter_last_id(&obd->u.filter, group); rc = filter_precreate(obd, oa, group, &diff); oa->o_id = filter_last_id(&obd->u.filter, group); - oa->o_valid = OBD_MD_FLID; + oa->o_gr = group; + oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP; GOTO(out, rc); } /* else diff == 0 */ GOTO(out, rc = 0); out: - up(&filter->fo_create_lock); + up(&filter->fo_create_locks[group]); return rc; } static int filter_statfs(struct obd_device *obd, struct obd_statfs *osfs, - __u64 max_age) + __u64 max_age, __u32 flags) { struct filter_obd *filter = &obd->u.filter; int blockbits = obd->u.obt.obt_sb->s_blocksize_bits; @@ -2748,6 +3689,31 @@ static int filter_statfs(struct obd_device *obd, struct obd_statfs *osfs, RETURN(rc); } +static int filter_use_existing_obj(struct obd_device *obd, + struct dentry *dchild, void **handle, + int *cleanup_phase) +{ + struct inode *inode = dchild->d_inode; + struct iattr iattr; + int rc; + + if ((inode->i_mode & (S_ISUID | S_ISGID)) == (S_ISUID|S_ISGID)) + return 0; + + *handle = fsfilt_start_log(obd, inode, FSFILT_OP_SETATTR, NULL, 1); + if (IS_ERR(*handle)) + return PTR_ERR(*handle); + + iattr.ia_valid = ATTR_MODE; + iattr.ia_mode = S_ISUID | S_ISGID |0666; + rc = fsfilt_setattr(obd, dchild, *handle, &iattr, 1); + if (rc == 0) + *cleanup_phase = 3; + + return rc; +} + + /* We rely on the fact that only one thread will be creating files in a given * group at a time, which is why we don't need an atomic filter_get_new_id. * Even if we had that atomic function, the following race would exist: @@ -2757,36 +3723,37 @@ static int filter_statfs(struct obd_device *obd, struct obd_statfs *osfs, * thread 2: creates object (x + 1) * thread 1: tries to create object x, gets -ENOSPC * - * Caller must hold fo_create_lock + * Caller must hold fo_create_locks[group] */ static int filter_precreate(struct obd_device *obd, struct obdo *oa, obd_gr group, int *num) { struct dentry *dchild = NULL, *dparent = NULL; struct filter_obd *filter; + struct obd_statfs *osfs; int err = 0, rc = 0, recreate_obj = 0, i; - unsigned long enough_time = jiffies + min(obd_timeout * HZ / 4, 10U*HZ); + cfs_time_t enough_time = cfs_time_shift(DISK_TIMEOUT/2); obd_id next_id; void *handle = NULL; ENTRY; filter = &obd->u.filter; - LASSERT(down_trylock(&filter->fo_create_lock) != 0); + LASSERT(down_trylock(&filter->fo_create_locks[group]) != 0); + + OBD_FAIL_TIMEOUT(OBD_FAIL_TGT_DELAY_PRECREATE, obd_timeout / 2); if ((oa->o_valid & OBD_MD_FLFLAGS) && (oa->o_flags & OBD_FL_RECREATE_OBJS)) { recreate_obj = 1; } else { - struct obd_statfs *osfs; - OBD_ALLOC(osfs, sizeof(*osfs)); if (osfs == NULL) RETURN(-ENOMEM); - rc = filter_statfs(obd, osfs, cfs_time_current_64() - HZ); + rc = filter_statfs(obd, osfs, cfs_time_current_64() - HZ, 0); if (rc == 0 && osfs->os_bavail < (osfs->os_blocks >> 10)) { - CDEBUG(D_HA,"%s: not enough space for create "LPU64"\n", - obd->obd_name, osfs->os_bavail << + CDEBUG(D_RPCTRACE,"%s: not enough space for create " + LPU64"\n", obd->obd_name, osfs->os_bavail << filter->fo_vfsmnt->mnt_sb->s_blocksize_bits); *num = 0; rc = -ENOSPC; @@ -2796,14 +3763,14 @@ static int filter_precreate(struct obd_device *obd, struct obdo *oa, RETURN(rc); } - CDEBUG(D_HA, "%s: precreating %d objects in group "LPU64" at "LPU64"\n", - obd->obd_name, *num, group, oa->o_id); + CDEBUG(D_RPCTRACE, "%s: precreating %d objects in group "LPU64 + " at "LPU64"\n", obd->obd_name, *num, group, oa->o_id); for (i = 0; i < *num && err == 0; i++) { int cleanup_phase = 0; - if (filter->fo_destroy_in_progress) { - CWARN("%s: precreate aborted by destroy\n", + if (test_bit(group, &filter->fo_destroys_in_progress)) { + CWARN("%s: create aborted by destroy\n", obd->obd_name); rc = -EAGAIN; break; @@ -2822,28 +3789,36 @@ static int filter_precreate(struct obd_device *obd, struct obdo *oa, } else next_id = filter_last_id(filter, group) + 1; - CDEBUG(D_INFO, "precreate objid "LPU64"\n", next_id); - dparent = filter_parent_lock(obd, group, next_id); if (IS_ERR(dparent)) GOTO(cleanup, rc = PTR_ERR(dparent)); - cleanup_phase = 1; /* filter_parent_unlock(dparent) */ + cleanup_phase = 1; /* filter_parent_unlock(dparent) */ dchild = filter_fid2dentry(obd, dparent, group, next_id); if (IS_ERR(dchild)) GOTO(cleanup, rc = PTR_ERR(dchild)); - cleanup_phase = 2; /* f_dput(dchild) */ + cleanup_phase = 2; /* f_dput(dchild) */ if (dchild->d_inode != NULL) { /* This would only happen if lastobjid was bad on disk*/ - /* Could also happen if recreating missing obj but - * already exists - */ + /* Could also happen if recreating missing obj but it + * already exists. */ if (recreate_obj) { CERROR("%s: recreating existing object %.*s?\n", obd->obd_name, dchild->d_name.len, dchild->d_name.name); } else { + /* Use these existing objects if they are + * zero length. */ + if (dchild->d_inode->i_size == 0) { + rc = filter_use_existing_obj(obd,dchild, + &handle, &cleanup_phase); + if (rc == 0) + goto set_last_id; + else + GOTO(cleanup, rc); + } + CERROR("%s: Serious error: objid %.*s already " "exists; is this filesystem corrupt?\n", obd->obd_name, dchild->d_name.len, @@ -2859,6 +3834,10 @@ static int filter_precreate(struct obd_device *obd, struct obdo *oa, GOTO(cleanup, rc = PTR_ERR(handle)); cleanup_phase = 3; + CDEBUG(D_INODE, "%s: filter_precreate(od->o_gr="LPU64 + ",od->o_id="LPU64")\n", obd->obd_name, group, + next_id); + /* We mark object SUID+SGID to flag it for accepting UID+GID * from client on first write. Currently the permission bits * on the OST are never used, so this is OK. */ @@ -2869,6 +3848,7 @@ static int filter_precreate(struct obd_device *obd, struct obdo *oa, GOTO(cleanup, rc); } +set_last_id: if (!recreate_obj) { filter_set_last_id(filter, next_id, group); err = filter_update_last_objid(obd, group, 0); @@ -2897,14 +3877,16 @@ static int filter_precreate(struct obd_device *obd, struct obdo *oa, if (rc) break; if (time_after(jiffies, enough_time)) { - CDEBUG(D_HA, "%s: precreate slow - want %d got %d \n", + CDEBUG(D_RPCTRACE, + "%s: precreate slow - want %d got %d \n", obd->obd_name, *num, i); break; } } *num = i; - CDEBUG(D_HA, "%s: created %d objects for group "LPU64": "LPU64" rc %d\n", + CDEBUG(D_RPCTRACE, + "%s: created %d objects for group "LPU64": "LPU64" rc %d\n", obd->obd_name, i, group, filter->fo_last_objids[group], rc); RETURN(rc); @@ -2913,17 +3895,35 @@ static int filter_precreate(struct obd_device *obd, struct obdo *oa, static int filter_create(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md **ea, struct obd_trans_info *oti) { - struct obd_device *obd = NULL; + struct obd_device *obd = exp->exp_obd; + struct filter_export_data *fed; + struct filter_obd *filter; struct lvfs_run_ctxt saved; struct lov_stripe_md *lsm = NULL; - int rc = 0; + int rc = 0, diff, group = oa->o_gr; ENTRY; - if (!(oa->o_valid & OBD_MD_FLGROUP)) - oa->o_gr = 0; + CDEBUG(D_INODE, "%s: filter_create(od->o_gr="LPU64",od->o_id=" + LPU64")\n", obd->obd_name, oa->o_gr, oa->o_id); + + if (!(oa->o_valid & OBD_MD_FLGROUP)) { + CERROR("!!! nid %s sent invalid object group %d\n", + obd_export_nid2str(exp), group); + RETURN(-EINVAL); + } + + fed = &exp->exp_filter_data; + filter = &obd->u.filter; + + if (fed->fed_group != group) { + CERROR("!!! this export (nid %s) used object group %d " + "earlier; now it's trying to use group %d! This could " + "be a bug in the MDS. Please report to " + "http://bugzilla.lustre.org/\n", + obd_export_nid2str(exp), fed->fed_group, group); + RETURN(-ENOTUNIQ); + } - CDEBUG(D_INFO, "filter_create(od->o_gr="LPU64",od->o_id="LPU64")\n", - oa->o_gr, oa->o_id); if (ea != NULL) { lsm = *ea; if (lsm == NULL) { @@ -2938,18 +3938,16 @@ static int filter_create(struct obd_export *exp, struct obdo *oa, if ((oa->o_valid & OBD_MD_FLFLAGS) && (oa->o_flags & OBD_FL_RECREATE_OBJS)) { - if (oa->o_id > filter_last_id(&obd->u.filter, oa->o_gr)) { + if (oa->o_id > filter_last_id(filter, oa->o_gr)) { CERROR("recreate objid "LPU64" > last id "LPU64"\n", - oa->o_id, filter_last_id(&obd->u.filter, + oa->o_id, filter_last_id(filter, oa->o_gr)); rc = -EINVAL; } else { - struct filter_obd *filter = &obd->u.filter; - int diff = 1; - - down(&filter->fo_create_lock); + diff = 1; + down(&filter->fo_create_locks[oa->o_gr]); rc = filter_precreate(obd, oa, oa->o_gr, &diff); - up(&filter->fo_create_lock); + up(&filter->fo_create_locks[oa->o_gr]); } } else { rc = filter_handle_precreate(exp, oa, oa->o_gr, oti); @@ -2972,7 +3970,7 @@ static int filter_create(struct obd_export *exp, struct obdo *oa, int filter_destroy(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *md, struct obd_trans_info *oti, - struct obd_export *md_exp) + struct obd_export *md_exp, void *capa) { unsigned int qcids[MAXQUOTAS] = {0, 0}; struct obd_device *obd; @@ -2981,12 +3979,16 @@ int filter_destroy(struct obd_export *exp, struct obdo *oa, struct lvfs_run_ctxt saved; void *handle = NULL; struct llog_cookie *fcc = NULL; - int rc, rc2, cleanup_phase = 0; + int rc, rc2, cleanup_phase = 0, sync = 0; struct iattr iattr; ENTRY; - if (!(oa->o_valid & OBD_MD_FLGROUP)) - oa->o_gr = 0; + LASSERT(oa->o_valid & OBD_MD_FLGROUP); + + rc = filter_auth_capa(exp, NULL, obdo_mdsno(oa), + (struct lustre_capa *)capa, CAPA_OPC_OSS_DESTROY); + if (rc) + RETURN(rc); obd = exp->exp_obd; filter = &obd->u.filter; @@ -2994,6 +3996,9 @@ int filter_destroy(struct obd_export *exp, struct obdo *oa, push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); cleanup_phase = 1; + CDEBUG(D_INODE, "%s: filter_destroy(od->o_gr="LPU64",od->o_id=" + LPU64")\n", obd->obd_name, oa->o_gr, oa->o_id); + dchild = filter_fid2dentry(obd, NULL, oa->o_gr, oa->o_id); if (IS_ERR(dchild)) GOTO(cleanup, rc = PTR_ERR(dchild)); @@ -3004,21 +4009,32 @@ int filter_destroy(struct obd_export *exp, struct obdo *oa, oa->o_id); /* If object already gone, cancel cookie right now */ if (oa->o_valid & OBD_MD_FLCOOKIE) { - fcc = obdo_logcookie(oa); - llog_cancel(llog_get_context(obd, fcc->lgc_subsys + 1), - NULL, 1, fcc, 0); + struct llog_ctxt *ctxt; + struct obd_llog_group *olg; + fcc = &oa->o_lcookie; + olg = filter_find_olg(obd, oa->o_gr); + if (!olg) { + CERROR(" %s: can not find olg of group %d\n", + obd->obd_name, (int)oa->o_gr); + GOTO(cleanup, rc = PTR_ERR(olg)); + } + llog_group_set_export(olg, exp); + + ctxt = llog_group_get_ctxt(olg, fcc->lgc_subsys + 1); + llog_cancel(ctxt, NULL, 1, fcc, 0); + llog_ctxt_put(ctxt); fcc = NULL; /* we didn't allocate fcc, don't free it */ } GOTO(cleanup, rc = -ENOENT); } - filter_prepare_destroy(obd, oa->o_id); + filter_prepare_destroy(obd, oa->o_id, oa->o_gr); /* Our MDC connection is established by the MDS to us */ if (oa->o_valid & OBD_MD_FLCOOKIE) { OBD_ALLOC(fcc, sizeof(*fcc)); if (fcc != NULL) - memcpy(fcc, obdo_logcookie(oa), sizeof(*fcc)); + *fcc = oa->o_lcookie; } DQUOT_INIT(dchild->d_inode); @@ -3076,19 +4092,28 @@ int filter_destroy(struct obd_export *exp, struct obdo *oa, cleanup: switch(cleanup_phase) { case 4: - if (fcc != NULL) { - if (fsfilt_add_journal_cb(obd, 0, oti ? - oti->oti_handle : handle, - filter_cancel_cookies_cb, - fcc) == 0) - fcc = NULL; - } - rc = filter_finish_transno(exp, oti, rc); + if (fcc != NULL) + sync = fsfilt_add_journal_cb(obd, 0, oti ? + oti->oti_handle : handle, + filter_cancel_cookies_cb, + fcc); + /* If add_journal_cb failed, then filter_finish_transno + * will commit the handle and we will do a sync + * on commit. then we call callback directly to free + * the fcc. + */ + rc = filter_finish_transno(exp, oti, rc, sync); + if (sync) { + filter_cancel_cookies_cb(obd, 0, fcc, rc); + fcc = NULL; + } rc2 = fsfilt_commit(obd, dparent->d_inode, handle, 0); if (rc2) { CERROR("error on commit, err = %d\n", rc2); if (!rc) rc = rc2; + } else { + fcc = NULL; } case 3: filter_parent_unlock(dparent); @@ -3133,28 +4158,34 @@ static int filter_truncate(struct obd_export *exp, struct obd_info *oinfo, oinfo->oi_oa->o_valid, oinfo->oi_policy.l_extent.start); oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.start; + oinfo->oi_oa->o_valid |= OBD_FL_TRUNC; rc = filter_setattr(exp, oinfo, oti); + oinfo->oi_oa->o_valid &= ~OBD_FL_TRUNC; RETURN(rc); } static int filter_sync(struct obd_export *exp, struct obdo *oa, - struct lov_stripe_md *lsm, obd_off start, obd_off end) + struct lov_stripe_md *lsm, obd_off start, obd_off end, + void *capa) { struct lvfs_run_ctxt saved; struct filter_obd *filter; struct dentry *dentry; - struct llog_ctxt *ctxt; int rc, rc2; ENTRY; + rc = filter_auth_capa(exp, NULL, obdo_mdsno(oa), + (struct lustre_capa *)capa, CAPA_OPC_OSS_WRITE); + if (rc) + RETURN(rc); + filter = &exp->exp_obd->u.filter; - /* an objid of zero is taken to mean "sync whole filesystem" */ + /* An objid of zero is taken to mean "sync whole filesystem" */ if (!oa || !(oa->o_valid & OBD_MD_FLID)) { rc = fsfilt_sync(exp->exp_obd, filter->fo_obt.obt_sb); - /* flush any remaining cancel messages out to the target */ - ctxt = llog_get_context(exp->exp_obd, LLOG_MDS_OST_REPL_CTXT); - llog_sync(ctxt, exp); + /* Flush any remaining cancel messages out to the target */ + filter_sync_llogs(exp->exp_obd, exp); RETURN(rc); } @@ -3190,7 +4221,8 @@ static int filter_sync(struct obd_export *exp, struct obdo *oa, } static int filter_get_info(struct obd_export *exp, __u32 keylen, - void *key, __u32 *vallen, void *val) + void *key, __u32 *vallen, void *val, + struct lov_stripe_md *lsm) { struct obd_device *obd; ENTRY; @@ -3201,39 +4233,100 @@ static int filter_get_info(struct obd_export *exp, __u32 keylen, RETURN(-EINVAL); } - if (keylen == strlen("blocksize") && - memcmp(key, "blocksize", keylen) == 0) { + if (KEY_IS(KEY_BLOCKSIZE)) { __u32 *blocksize = val; + if (blocksize) { + if (*vallen < sizeof(*blocksize)) + RETURN(-EOVERFLOW); + *blocksize = obd->u.obt.obt_sb->s_blocksize; + } *vallen = sizeof(*blocksize); - *blocksize = obd->u.obt.obt_sb->s_blocksize; RETURN(0); } - if (keylen == strlen("blocksize_bits") && - memcmp(key, "blocksize_bits", keylen) == 0) { + if (KEY_IS(KEY_BLOCKSIZE_BITS)) { __u32 *blocksize_bits = val; + if (blocksize_bits) { + if (*vallen < sizeof(*blocksize_bits)) + RETURN(-EOVERFLOW); + *blocksize_bits = obd->u.obt.obt_sb->s_blocksize_bits; + } *vallen = sizeof(*blocksize_bits); - *blocksize_bits = obd->u.obt.obt_sb->s_blocksize_bits; RETURN(0); } - if (keylen >= strlen("last_id") && memcmp(key, "last_id", 7) == 0) { + if (KEY_IS(KEY_LAST_ID)) { obd_id *last_id = val; /* FIXME: object groups */ - *last_id = filter_last_id(&obd->u.filter, 0); + if (last_id) { + if (*vallen < sizeof(*last_id)) + RETURN(-EOVERFLOW); + *last_id = filter_last_id(&obd->u.filter, + exp->exp_filter_data.fed_group); + } + *vallen = sizeof(*last_id); RETURN(0); } + + if (KEY_IS(KEY_FIEMAP)) { + struct ll_fiemap_info_key *fm_key = key; + struct dentry *dentry; + struct ll_user_fiemap *fiemap = val; + struct lvfs_run_ctxt saved; + int rc; + + if (fiemap == NULL) { + *vallen = fiemap_count_to_size( + fm_key->fiemap.fm_extent_count); + RETURN(0); + } + + dentry = __filter_oa2dentry(exp->exp_obd, &fm_key->oa, + __FUNCTION__, 1); + if (IS_ERR(dentry)) + RETURN(PTR_ERR(dentry)); + + memcpy(fiemap, &fm_key->fiemap, sizeof(*fiemap)); + push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); + rc = fsfilt_iocontrol(obd, dentry->d_inode, NULL, + EXT3_IOC_FIEMAP, (long)fiemap); + pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); + + f_dput(dentry); + RETURN(rc); + } + CDEBUG(D_IOCTL, "invalid key\n"); RETURN(-EINVAL); } +static inline int filter_setup_llog_group(struct obd_export *exp, + struct obd_device *obd, + int group) +{ + struct obd_llog_group *olg; + struct llog_ctxt *ctxt; + int rc; + + olg = filter_find_create_olg(obd, group); + if (IS_ERR(olg)) + RETURN(PTR_ERR(olg)); + + llog_group_set_export(olg, exp); + + ctxt = llog_group_get_ctxt(olg, LLOG_MDS_OST_REPL_CTXT); + LASSERTF(ctxt != NULL, "ctxt is null\n"); + + rc = llog_receptor_accept(ctxt, exp->exp_imp_reverse); + llog_ctxt_put(ctxt); + return rc; +} static int filter_set_info_async(struct obd_export *exp, __u32 keylen, void *key, __u32 vallen, void *val, struct ptlrpc_request_set *set) { struct obd_device *obd; - struct llog_ctxt *ctxt; - int rc = 0; + int rc = 0, group; ENTRY; obd = exp->exp_obd; @@ -3242,8 +4335,34 @@ static int filter_set_info_async(struct obd_export *exp, __u32 keylen, RETURN(-EINVAL); } - if (keylen < strlen(KEY_MDS_CONN) || - memcmp(key, KEY_MDS_CONN, keylen) != 0) + if (KEY_IS(KEY_CAPA_KEY)) { + rc = filter_update_capa_key(obd, (struct lustre_capa_key *)val); + if (rc) + CERROR("filter update capability key failed: %d\n", rc); + RETURN(rc); + } + + if (KEY_IS(KEY_REVIMP_UPD)) { + filter_revimp_update(exp); + lquota_clearinfo(filter_quota_interface_ref, exp, exp->exp_obd); + RETURN(0); + } + + if (KEY_IS(KEY_SPTLRPC_CONF)) { + filter_adapt_sptlrpc_conf(obd, 0); + RETURN(0); + } + + if (KEY_IS(KEY_GRANT_SHRINK)) { + struct ost_body *body = (struct ost_body *)val; + /* handle shrink grant */ + spin_lock(&exp->exp_obd->obd_osfs_lock); + filter_grant_incoming(exp, &body->oa); + spin_unlock(&exp->exp_obd->obd_osfs_lock); + RETURN(rc); + } + + if (!KEY_IS(KEY_MDS_CONN)) RETURN(-EINVAL); LCONSOLE_WARN("%s: received MDS connection from %s\n", obd->obd_name, @@ -3251,11 +4370,23 @@ static int filter_set_info_async(struct obd_export *exp, __u32 keylen, obd->u.filter.fo_mdc_conn.cookie = exp->exp_handle.h_cookie; /* setup llog imports */ - ctxt = llog_get_context(obd, LLOG_MDS_OST_REPL_CTXT); - rc = llog_receptor_accept(ctxt, exp->exp_imp_reverse); + if (val != NULL) + group = (int)(*(__u32 *)val); + else + group = 0; /* default value */ + + LASSERT_MDS_GROUP(group); + rc = filter_setup_llog_group(exp, obd, group); + if (rc) + goto out; - lquota_setinfo(filter_quota_interface_ref, exp, obd); + lquota_setinfo(filter_quota_interface_ref, obd, exp); + if (group == FILTER_GROUP_MDS0) { + /* setup llog group 1 for interop */ + filter_setup_llog_group(exp, obd, FILTER_GROUP_LLOG); + } +out: RETURN(rc); } @@ -3269,12 +4400,12 @@ int filter_iocontrol(unsigned int cmd, struct obd_export *exp, switch (cmd) { case OBD_IOC_ABORT_RECOVERY: { CERROR("aborting recovery for device %s\n", obd->obd_name); - target_abort_recovery(obd); + target_stop_recovery_thread(obd); RETURN(0); } case OBD_IOC_SYNC: { - CDEBUG(D_HA, "syncing ost %s\n", obd->obd_name); + CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name); rc = fsfilt_sync(obd, obd->u.obt.obt_sb); RETURN(rc); } @@ -3329,7 +4460,9 @@ int filter_iocontrol(unsigned int cmd, struct obd_export *exp, static int filter_health_check(struct obd_device *obd) { +#ifdef USE_HEALTH_CHECK_WRITE struct filter_obd *filter = &obd->u.filter; +#endif int rc = 0; /* @@ -3339,9 +4472,10 @@ static int filter_health_check(struct obd_device *obd) if (obd->u.obt.obt_sb->s_flags & MS_RDONLY) rc = 1; +#ifdef USE_HEALTH_CHECK_WRITE LASSERT(filter->fo_health_check_filp != NULL); rc |= !!lvfs_check_io_health(obd, filter->fo_health_check_filp); - +#endif return rc; } @@ -3351,17 +4485,25 @@ static struct dentry *filter_lvfs_fid2dentry(__u64 id, __u32 gen, __u64 gr, return filter_fid2dentry(data, NULL, gr, id); } -static int filter_process_config(struct obd_device *obd, obd_count len, void *buf) +static int filter_process_config(struct obd_device *obd, obd_count len, + void *buf) { struct lustre_cfg *lcfg = buf; struct lprocfs_static_vars lvars; int rc = 0; - lprocfs_init_vars(filter, &lvars); - - rc = class_process_proc_param(PARAM_OST, lvars.obd_vars, lcfg, obd); + switch (lcfg->lcfg_command) { + default: + lprocfs_filter_init_vars(&lvars); + + rc = class_process_proc_param(PARAM_OST, lvars.obd_vars, + lcfg, obd); + if (rc > 0) + rc = 0; + break; + } - return(rc); + return rc; } static struct lvfs_callback_ops filter_lvfs_ops = { @@ -3393,6 +4535,7 @@ static struct obd_ops filter_obd_ops = { .o_preprw = filter_preprw, .o_commitrw = filter_commitrw, .o_llog_init = filter_llog_init, + .o_llog_connect = filter_llog_connect, .o_llog_finish = filter_llog_finish, .o_iocontrol = filter_iocontrol, .o_health_check = filter_health_check, @@ -3407,9 +4550,7 @@ static int __init obdfilter_init(void) struct lprocfs_static_vars lvars; int rc; - printk(KERN_INFO "Lustre: Filtering OBD driver; info@clusterfs.com\n"); - - lprocfs_init_vars(filter, &lvars); + lprocfs_filter_init_vars(&lvars); request_module("lquota"); OBD_ALLOC(obdfilter_created_scratchpad, @@ -3418,21 +4559,21 @@ static int __init obdfilter_init(void) if (obdfilter_created_scratchpad == NULL) return -ENOMEM; - ll_fmd_cachep = kmem_cache_create("ll_fmd_cache", - sizeof(struct filter_mod_data), - 0, 0, NULL, NULL); + ll_fmd_cachep = cfs_mem_cache_create("ll_fmd_cache", + sizeof(struct filter_mod_data), + 0, 0); if (!ll_fmd_cachep) GOTO(out, rc = -ENOMEM); filter_quota_interface_ref = PORTAL_SYMBOL_GET(filter_quota_interface); init_obd_quota_ops(filter_quota_interface_ref, &filter_obd_ops); - rc = class_register_type(&filter_obd_ops, lvars.module_vars, - LUSTRE_OST_NAME); + rc = class_register_type(&filter_obd_ops, NULL, lvars.module_vars, + LUSTRE_OST_NAME, NULL); if (rc) { int err; - err = kmem_cache_destroy(ll_fmd_cachep); + err = cfs_mem_cache_destroy(ll_fmd_cachep); LASSERTF(err == 0, "Cannot destroy ll_fmd_cachep: rc %d\n",err); ll_fmd_cachep = NULL; out: @@ -3453,7 +4594,7 @@ static void __exit obdfilter_exit(void) PORTAL_SYMBOL_PUT(filter_quota_interface); if (ll_fmd_cachep) { - int rc = kmem_cache_destroy(ll_fmd_cachep); + int rc = cfs_mem_cache_destroy(ll_fmd_cachep); LASSERTF(rc == 0, "Cannot destroy ll_fmd_cachep: rc %d\n", rc); ll_fmd_cachep = NULL; } @@ -3464,7 +4605,7 @@ static void __exit obdfilter_exit(void) sizeof(*obdfilter_created_scratchpad)); } -MODULE_AUTHOR("Cluster File Systems, Inc. "); +MODULE_AUTHOR("Sun Microsystems, Inc. "); MODULE_DESCRIPTION("Lustre Filtering OBD driver"); MODULE_LICENSE("GPL");