2660 lines
70 KiB
C
2660 lines
70 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* GPL HEADER START
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 only,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License version 2 for more details (a copy is included
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* in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; If not, see
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* http://www.gnu.org/licenses/gpl-2.0.html
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*
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* GPL HEADER END
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*/
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/*
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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* Use is subject to license terms.
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*
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* Copyright (c) 2011, 2015, Intel Corporation.
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*/
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/*
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* This file is part of Lustre, http://www.lustre.org/
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* Lustre is a trademark of Sun Microsystems, Inc.
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*
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* lustre/llite/llite_lib.c
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*
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* Lustre Light Super operations
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*/
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#define DEBUG_SUBSYSTEM S_LLITE
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#include <linux/module.h>
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#include <linux/statfs.h>
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#include <linux/types.h>
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#include <linux/mm.h>
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#include <uapi/linux/lustre/lustre_ioctl.h>
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#include <lustre_ha.h>
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#include <lustre_dlm.h>
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#include <lprocfs_status.h>
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#include <lustre_disk.h>
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#include <uapi/linux/lustre/lustre_param.h>
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#include <lustre_log.h>
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#include <cl_object.h>
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#include <obd_cksum.h>
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#include "llite_internal.h"
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struct kmem_cache *ll_file_data_slab;
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struct dentry *llite_root;
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struct kset *llite_kset;
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#ifndef log2
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#define log2(n) ffz(~(n))
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#endif
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static struct ll_sb_info *ll_init_sbi(struct super_block *sb)
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{
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struct ll_sb_info *sbi = NULL;
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unsigned long pages;
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unsigned long lru_page_max;
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struct sysinfo si;
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class_uuid_t uuid;
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int i;
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sbi = kzalloc(sizeof(*sbi), GFP_NOFS);
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if (!sbi)
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return NULL;
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spin_lock_init(&sbi->ll_lock);
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mutex_init(&sbi->ll_lco.lco_lock);
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spin_lock_init(&sbi->ll_pp_extent_lock);
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spin_lock_init(&sbi->ll_process_lock);
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sbi->ll_rw_stats_on = 0;
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si_meminfo(&si);
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pages = si.totalram - si.totalhigh;
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lru_page_max = pages / 2;
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sbi->ll_cache = cl_cache_init(lru_page_max);
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if (!sbi->ll_cache) {
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kfree(sbi);
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return NULL;
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}
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sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
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SBI_DEFAULT_READAHEAD_MAX);
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sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
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sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
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SBI_DEFAULT_READAHEAD_WHOLE_MAX;
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ll_generate_random_uuid(uuid);
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class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
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CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
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sbi->ll_flags |= LL_SBI_VERBOSE;
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sbi->ll_flags |= LL_SBI_CHECKSUM;
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sbi->ll_flags |= LL_SBI_LRU_RESIZE;
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sbi->ll_flags |= LL_SBI_LAZYSTATFS;
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for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
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spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].
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pp_r_hist.oh_lock);
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spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].
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pp_w_hist.oh_lock);
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}
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/* metadata statahead is enabled by default */
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sbi->ll_sa_max = LL_SA_RPC_DEF;
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atomic_set(&sbi->ll_sa_total, 0);
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atomic_set(&sbi->ll_sa_wrong, 0);
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atomic_set(&sbi->ll_sa_running, 0);
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atomic_set(&sbi->ll_agl_total, 0);
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sbi->ll_flags |= LL_SBI_AGL_ENABLED;
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/* root squash */
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sbi->ll_squash.rsi_uid = 0;
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sbi->ll_squash.rsi_gid = 0;
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INIT_LIST_HEAD(&sbi->ll_squash.rsi_nosquash_nids);
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init_rwsem(&sbi->ll_squash.rsi_sem);
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sbi->ll_sb = sb;
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return sbi;
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}
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static void ll_free_sbi(struct super_block *sb)
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{
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struct ll_sb_info *sbi = ll_s2sbi(sb);
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if (sbi->ll_cache) {
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if (!list_empty(&sbi->ll_squash.rsi_nosquash_nids))
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cfs_free_nidlist(&sbi->ll_squash.rsi_nosquash_nids);
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cl_cache_decref(sbi->ll_cache);
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sbi->ll_cache = NULL;
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}
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kfree(sbi);
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}
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static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
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struct vfsmount *mnt)
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{
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struct inode *root = NULL;
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struct ll_sb_info *sbi = ll_s2sbi(sb);
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struct obd_device *obd;
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struct obd_statfs *osfs = NULL;
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struct ptlrpc_request *request = NULL;
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struct obd_connect_data *data = NULL;
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struct obd_uuid *uuid;
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struct md_op_data *op_data;
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struct lustre_md lmd;
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u64 valid;
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int size, err, checksum;
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obd = class_name2obd(md);
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if (!obd) {
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CERROR("MD %s: not setup or attached\n", md);
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return -EINVAL;
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}
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data = kzalloc(sizeof(*data), GFP_NOFS);
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if (!data)
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return -ENOMEM;
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osfs = kzalloc(sizeof(*osfs), GFP_NOFS);
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if (!osfs) {
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kfree(data);
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return -ENOMEM;
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}
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/* indicate the features supported by this client */
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data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
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OBD_CONNECT_ATTRFID |
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OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE |
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OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
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OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 |
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OBD_CONNECT_VBR | OBD_CONNECT_FULL20 |
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OBD_CONNECT_64BITHASH |
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OBD_CONNECT_EINPROGRESS |
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OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
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OBD_CONNECT_LAYOUTLOCK |
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OBD_CONNECT_PINGLESS |
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OBD_CONNECT_MAX_EASIZE |
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OBD_CONNECT_FLOCK_DEAD |
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OBD_CONNECT_DISP_STRIPE | OBD_CONNECT_LFSCK |
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OBD_CONNECT_OPEN_BY_FID |
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OBD_CONNECT_DIR_STRIPE |
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OBD_CONNECT_BULK_MBITS;
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if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
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data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
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#ifdef CONFIG_FS_POSIX_ACL
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data->ocd_connect_flags |= OBD_CONNECT_ACL | OBD_CONNECT_UMASK;
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#endif
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if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT))
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/* flag mdc connection as lightweight, only used for test
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* purpose, use with care
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*/
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data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT;
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data->ocd_ibits_known = MDS_INODELOCK_FULL;
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data->ocd_version = LUSTRE_VERSION_CODE;
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if (sb_rdonly(sb))
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data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
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if (sbi->ll_flags & LL_SBI_USER_XATTR)
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data->ocd_connect_flags |= OBD_CONNECT_XATTR;
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if (sbi->ll_flags & LL_SBI_FLOCK)
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sbi->ll_fop = &ll_file_operations_flock;
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else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
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sbi->ll_fop = &ll_file_operations;
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else
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sbi->ll_fop = &ll_file_operations_noflock;
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/* always ping even if server suppress_pings */
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if (sbi->ll_flags & LL_SBI_ALWAYS_PING)
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data->ocd_connect_flags &= ~OBD_CONNECT_PINGLESS;
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data->ocd_brw_size = MD_MAX_BRW_SIZE;
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err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid,
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data, NULL);
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if (err == -EBUSY) {
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LCONSOLE_ERROR_MSG(0x14f,
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"An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n",
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md);
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goto out;
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} else if (err) {
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CERROR("cannot connect to %s: rc = %d\n", md, err);
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goto out;
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}
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sbi->ll_md_exp->exp_connect_data = *data;
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err = obd_fid_init(sbi->ll_md_exp->exp_obd, sbi->ll_md_exp,
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LUSTRE_SEQ_METADATA);
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if (err) {
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CERROR("%s: Can't init metadata layer FID infrastructure, rc = %d\n",
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sbi->ll_md_exp->exp_obd->obd_name, err);
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goto out_md;
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}
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/* For mount, we only need fs info from MDT0, and also in DNE, it
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* can make sure the client can be mounted as long as MDT0 is
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* available
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*/
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err = obd_statfs(NULL, sbi->ll_md_exp, osfs,
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cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
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OBD_STATFS_FOR_MDT0);
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if (err)
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goto out_md_fid;
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/* This needs to be after statfs to ensure connect has finished.
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* Note that "data" does NOT contain the valid connect reply.
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* If connecting to a 1.8 server there will be no LMV device, so
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* we can access the MDC export directly and exp_connect_flags will
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* be non-zero, but if accessing an upgraded 2.1 server it will
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* have the correct flags filled in.
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* XXX: fill in the LMV exp_connect_flags from MDC(s).
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*/
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valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD;
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if (exp_connect_flags(sbi->ll_md_exp) != 0 &&
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valid != CLIENT_CONNECT_MDT_REQD) {
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char *buf;
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buf = kzalloc(PAGE_SIZE, GFP_KERNEL);
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if (!buf) {
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err = -ENOMEM;
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goto out_md_fid;
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}
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obd_connect_flags2str(buf, PAGE_SIZE,
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valid ^ CLIENT_CONNECT_MDT_REQD, ",");
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LCONSOLE_ERROR_MSG(0x170,
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"Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n",
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sbi->ll_md_exp->exp_obd->obd_name, buf);
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kfree(buf);
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err = -EPROTO;
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goto out_md_fid;
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}
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size = sizeof(*data);
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err = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
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KEY_CONN_DATA, &size, data);
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if (err) {
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CERROR("%s: Get connect data failed: rc = %d\n",
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sbi->ll_md_exp->exp_obd->obd_name, err);
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goto out_md_fid;
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}
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LASSERT(osfs->os_bsize);
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sb->s_blocksize = osfs->os_bsize;
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sb->s_blocksize_bits = log2(osfs->os_bsize);
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sb->s_magic = LL_SUPER_MAGIC;
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sb->s_maxbytes = MAX_LFS_FILESIZE;
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sbi->ll_namelen = osfs->os_namelen;
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sbi->ll_mnt.mnt = current->fs->root.mnt;
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if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
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!(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
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LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n");
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sbi->ll_flags &= ~LL_SBI_USER_XATTR;
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}
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if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
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sb->s_flags |= SB_POSIXACL;
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sbi->ll_flags |= LL_SBI_ACL;
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} else {
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LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
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sb->s_flags &= ~SB_POSIXACL;
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sbi->ll_flags &= ~LL_SBI_ACL;
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}
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if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH)
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sbi->ll_flags |= LL_SBI_64BIT_HASH;
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if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
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sbi->ll_md_brw_pages = data->ocd_brw_size >> PAGE_SHIFT;
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else
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sbi->ll_md_brw_pages = 1;
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if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK)
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sbi->ll_flags |= LL_SBI_LAYOUT_LOCK;
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if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) {
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if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) {
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LCONSOLE_INFO(
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"%s: disabling xattr cache due to unknown maximum xattr size.\n",
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dt);
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} else {
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sbi->ll_flags |= LL_SBI_XATTR_CACHE;
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sbi->ll_xattr_cache_enabled = 1;
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}
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}
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obd = class_name2obd(dt);
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if (!obd) {
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CERROR("DT %s: not setup or attached\n", dt);
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err = -ENODEV;
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goto out_md_fid;
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}
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data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
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OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
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OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
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OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
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OBD_CONNECT_AT | OBD_CONNECT_OSS_CAPA |
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OBD_CONNECT_VBR | OBD_CONNECT_FULL20 |
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OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES |
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OBD_CONNECT_EINPROGRESS |
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OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
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OBD_CONNECT_LAYOUTLOCK |
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OBD_CONNECT_PINGLESS | OBD_CONNECT_LFSCK |
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OBD_CONNECT_BULK_MBITS;
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if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
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/* OBD_CONNECT_CKSUM should always be set, even if checksums are
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* disabled by default, because it can still be enabled on the
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* fly via /sys. As a consequence, we still need to come to an
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* agreement on the supported algorithms at connect time
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*/
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data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
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if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
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data->ocd_cksum_types = OBD_CKSUM_ADLER;
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else
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data->ocd_cksum_types = cksum_types_supported_client();
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}
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data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
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/* always ping even if server suppress_pings */
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if (sbi->ll_flags & LL_SBI_ALWAYS_PING)
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data->ocd_connect_flags &= ~OBD_CONNECT_PINGLESS;
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CDEBUG(D_RPCTRACE,
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"ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n",
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data->ocd_connect_flags,
|
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data->ocd_version, data->ocd_grant);
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|
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obd->obd_upcall.onu_owner = &sbi->ll_lco;
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obd->obd_upcall.onu_upcall = cl_ocd_update;
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data->ocd_brw_size = DT_MAX_BRW_SIZE;
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err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data,
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NULL);
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if (err == -EBUSY) {
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LCONSOLE_ERROR_MSG(0x150,
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"An OST (dt %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n",
|
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dt);
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goto out_md;
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} else if (err) {
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CERROR("%s: Cannot connect to %s: rc = %d\n",
|
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sbi->ll_dt_exp->exp_obd->obd_name, dt, err);
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goto out_md;
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}
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sbi->ll_dt_exp->exp_connect_data = *data;
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err = obd_fid_init(sbi->ll_dt_exp->exp_obd, sbi->ll_dt_exp,
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LUSTRE_SEQ_METADATA);
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if (err) {
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CERROR("%s: Can't init data layer FID infrastructure, rc = %d\n",
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sbi->ll_dt_exp->exp_obd->obd_name, err);
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goto out_dt;
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}
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mutex_lock(&sbi->ll_lco.lco_lock);
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sbi->ll_lco.lco_flags = data->ocd_connect_flags;
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sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
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sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
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mutex_unlock(&sbi->ll_lco.lco_lock);
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fid_zero(&sbi->ll_root_fid);
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err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid);
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if (err) {
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CERROR("cannot mds_connect: rc = %d\n", err);
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goto out_lock_cn_cb;
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}
|
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if (!fid_is_sane(&sbi->ll_root_fid)) {
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|
CERROR("%s: Invalid root fid " DFID " during mount\n",
|
|
sbi->ll_md_exp->exp_obd->obd_name,
|
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PFID(&sbi->ll_root_fid));
|
|
err = -EINVAL;
|
|
goto out_lock_cn_cb;
|
|
}
|
|
CDEBUG(D_SUPER, "rootfid " DFID "\n", PFID(&sbi->ll_root_fid));
|
|
|
|
sb->s_op = &lustre_super_operations;
|
|
sb->s_xattr = ll_xattr_handlers;
|
|
#if THREAD_SIZE >= 8192 /*b=17630*/
|
|
sb->s_export_op = &lustre_export_operations;
|
|
#endif
|
|
|
|
/* make root inode
|
|
* XXX: move this to after cbd setup?
|
|
*/
|
|
valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMODEASIZE;
|
|
if (sbi->ll_flags & LL_SBI_ACL)
|
|
valid |= OBD_MD_FLACL;
|
|
|
|
op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
|
|
if (!op_data) {
|
|
err = -ENOMEM;
|
|
goto out_lock_cn_cb;
|
|
}
|
|
|
|
op_data->op_fid1 = sbi->ll_root_fid;
|
|
op_data->op_mode = 0;
|
|
op_data->op_valid = valid;
|
|
|
|
err = md_getattr(sbi->ll_md_exp, op_data, &request);
|
|
kfree(op_data);
|
|
if (err) {
|
|
CERROR("%s: md_getattr failed for root: rc = %d\n",
|
|
sbi->ll_md_exp->exp_obd->obd_name, err);
|
|
goto out_lock_cn_cb;
|
|
}
|
|
|
|
err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
|
|
sbi->ll_md_exp, &lmd);
|
|
if (err) {
|
|
CERROR("failed to understand root inode md: rc = %d\n", err);
|
|
ptlrpc_req_finished(request);
|
|
goto out_lock_cn_cb;
|
|
}
|
|
|
|
LASSERT(fid_is_sane(&sbi->ll_root_fid));
|
|
root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid,
|
|
sbi->ll_flags & LL_SBI_32BIT_API),
|
|
&lmd);
|
|
md_free_lustre_md(sbi->ll_md_exp, &lmd);
|
|
ptlrpc_req_finished(request);
|
|
|
|
if (IS_ERR(root)) {
|
|
#ifdef CONFIG_FS_POSIX_ACL
|
|
if (lmd.posix_acl) {
|
|
posix_acl_release(lmd.posix_acl);
|
|
lmd.posix_acl = NULL;
|
|
}
|
|
#endif
|
|
err = -EBADF;
|
|
CERROR("lustre_lite: bad iget4 for root\n");
|
|
goto out_root;
|
|
}
|
|
|
|
checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
|
|
err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
|
|
KEY_CHECKSUM, sizeof(checksum), &checksum,
|
|
NULL);
|
|
if (err) {
|
|
CERROR("%s: Set checksum failed: rc = %d\n",
|
|
sbi->ll_dt_exp->exp_obd->obd_name, err);
|
|
goto out_root;
|
|
}
|
|
cl_sb_init(sb);
|
|
|
|
err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CACHE_SET),
|
|
KEY_CACHE_SET, sizeof(*sbi->ll_cache),
|
|
sbi->ll_cache, NULL);
|
|
if (err) {
|
|
CERROR("%s: Set cache_set failed: rc = %d\n",
|
|
sbi->ll_dt_exp->exp_obd->obd_name, err);
|
|
goto out_root;
|
|
}
|
|
|
|
sb->s_root = d_make_root(root);
|
|
if (!sb->s_root) {
|
|
CERROR("%s: can't make root dentry\n",
|
|
ll_get_fsname(sb, NULL, 0));
|
|
err = -ENOMEM;
|
|
goto out_lock_cn_cb;
|
|
}
|
|
|
|
sbi->ll_sdev_orig = sb->s_dev;
|
|
|
|
/* We set sb->s_dev equal on all lustre clients in order to support
|
|
* NFS export clustering. NFSD requires that the FSID be the same
|
|
* on all clients.
|
|
*/
|
|
/* s_dev is also used in lt_compare() to compare two fs, but that is
|
|
* only a node-local comparison.
|
|
*/
|
|
uuid = obd_get_uuid(sbi->ll_md_exp);
|
|
if (uuid) {
|
|
sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
|
|
get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid);
|
|
}
|
|
|
|
kfree(data);
|
|
kfree(osfs);
|
|
|
|
if (llite_root) {
|
|
err = ldebugfs_register_mountpoint(llite_root, sb, dt, md);
|
|
if (err < 0) {
|
|
CERROR("%s: could not register mount in debugfs: "
|
|
"rc = %d\n", ll_get_fsname(sb, NULL, 0), err);
|
|
err = 0;
|
|
}
|
|
}
|
|
|
|
return err;
|
|
out_root:
|
|
iput(root);
|
|
out_lock_cn_cb:
|
|
obd_fid_fini(sbi->ll_dt_exp->exp_obd);
|
|
out_dt:
|
|
obd_disconnect(sbi->ll_dt_exp);
|
|
sbi->ll_dt_exp = NULL;
|
|
out_md_fid:
|
|
obd_fid_fini(sbi->ll_md_exp->exp_obd);
|
|
out_md:
|
|
obd_disconnect(sbi->ll_md_exp);
|
|
sbi->ll_md_exp = NULL;
|
|
out:
|
|
kfree(data);
|
|
kfree(osfs);
|
|
return err;
|
|
}
|
|
|
|
int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
|
|
{
|
|
int size, rc;
|
|
|
|
size = sizeof(*lmmsize);
|
|
rc = obd_get_info(NULL, sbi->ll_dt_exp, sizeof(KEY_MAX_EASIZE),
|
|
KEY_MAX_EASIZE, &size, lmmsize);
|
|
if (rc) {
|
|
CERROR("%s: cannot get max LOV EA size: rc = %d\n",
|
|
sbi->ll_dt_exp->exp_obd->obd_name, rc);
|
|
return rc;
|
|
}
|
|
|
|
size = sizeof(int);
|
|
rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
|
|
KEY_MAX_EASIZE, &size, lmmsize);
|
|
if (rc)
|
|
CERROR("Get max mdsize error rc %d\n", rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* Get the value of the default_easize parameter.
|
|
*
|
|
* \see client_obd::cl_default_mds_easize
|
|
*
|
|
* \param[in] sbi superblock info for this filesystem
|
|
* \param[out] lmmsize pointer to storage location for value
|
|
*
|
|
* \retval 0 on success
|
|
* \retval negative negated errno on failure
|
|
*/
|
|
int ll_get_default_mdsize(struct ll_sb_info *sbi, int *lmmsize)
|
|
{
|
|
int size, rc;
|
|
|
|
size = sizeof(int);
|
|
rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_EASIZE),
|
|
KEY_DEFAULT_EASIZE, &size, lmmsize);
|
|
if (rc)
|
|
CERROR("Get default mdsize error rc %d\n", rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* Set the default_easize parameter to the given value.
|
|
*
|
|
* \see client_obd::cl_default_mds_easize
|
|
*
|
|
* \param[in] sbi superblock info for this filesystem
|
|
* \param[in] lmmsize the size to set
|
|
*
|
|
* \retval 0 on success
|
|
* \retval negative negated errno on failure
|
|
*/
|
|
int ll_set_default_mdsize(struct ll_sb_info *sbi, int lmmsize)
|
|
{
|
|
if (lmmsize < sizeof(struct lov_mds_md) ||
|
|
lmmsize > OBD_MAX_DEFAULT_EA_SIZE)
|
|
return -EINVAL;
|
|
|
|
return obd_set_info_async(NULL, sbi->ll_md_exp,
|
|
sizeof(KEY_DEFAULT_EASIZE),
|
|
KEY_DEFAULT_EASIZE,
|
|
sizeof(int), &lmmsize, NULL);
|
|
}
|
|
|
|
static void client_common_put_super(struct super_block *sb)
|
|
{
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
|
|
cl_sb_fini(sb);
|
|
|
|
obd_fid_fini(sbi->ll_dt_exp->exp_obd);
|
|
obd_disconnect(sbi->ll_dt_exp);
|
|
sbi->ll_dt_exp = NULL;
|
|
|
|
ldebugfs_unregister_mountpoint(sbi);
|
|
|
|
obd_fid_fini(sbi->ll_md_exp->exp_obd);
|
|
obd_disconnect(sbi->ll_md_exp);
|
|
sbi->ll_md_exp = NULL;
|
|
}
|
|
|
|
void ll_kill_super(struct super_block *sb)
|
|
{
|
|
struct ll_sb_info *sbi;
|
|
|
|
/* not init sb ?*/
|
|
if (!(sb->s_flags & SB_ACTIVE))
|
|
return;
|
|
|
|
sbi = ll_s2sbi(sb);
|
|
/* we need to restore s_dev from changed for clustered NFS before
|
|
* put_super because new kernels have cached s_dev and change sb->s_dev
|
|
* in put_super not affected real removing devices
|
|
*/
|
|
if (sbi) {
|
|
sb->s_dev = sbi->ll_sdev_orig;
|
|
sbi->ll_umounting = 1;
|
|
|
|
/* wait running statahead threads to quit */
|
|
while (atomic_read(&sbi->ll_sa_running) > 0) {
|
|
set_current_state(TASK_UNINTERRUPTIBLE);
|
|
schedule_timeout(msecs_to_jiffies(MSEC_PER_SEC >> 3));
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline int ll_set_opt(const char *opt, char *data, int fl)
|
|
{
|
|
if (strncmp(opt, data, strlen(opt)) != 0)
|
|
return 0;
|
|
else
|
|
return fl;
|
|
}
|
|
|
|
/* non-client-specific mount options are parsed in lmd_parse */
|
|
static int ll_options(char *options, int *flags)
|
|
{
|
|
int tmp;
|
|
char *s1 = options, *s2;
|
|
|
|
if (!options)
|
|
return 0;
|
|
|
|
CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
|
|
|
|
while (*s1) {
|
|
CDEBUG(D_SUPER, "next opt=%s\n", s1);
|
|
tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("noflock", s1,
|
|
LL_SBI_FLOCK | LL_SBI_LOCALFLOCK);
|
|
if (tmp) {
|
|
*flags &= ~tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
|
|
if (tmp) {
|
|
*flags &= ~tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("context", s1, 1);
|
|
if (tmp)
|
|
goto next;
|
|
tmp = ll_set_opt("fscontext", s1, 1);
|
|
if (tmp)
|
|
goto next;
|
|
tmp = ll_set_opt("defcontext", s1, 1);
|
|
if (tmp)
|
|
goto next;
|
|
tmp = ll_set_opt("rootcontext", s1, 1);
|
|
if (tmp)
|
|
goto next;
|
|
tmp = ll_set_opt("user_fid2path", s1, LL_SBI_USER_FID2PATH);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("nouser_fid2path", s1, LL_SBI_USER_FID2PATH);
|
|
if (tmp) {
|
|
*flags &= ~tmp;
|
|
goto next;
|
|
}
|
|
|
|
tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
|
|
if (tmp) {
|
|
*flags &= ~tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
|
|
if (tmp) {
|
|
*flags &= ~tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
|
|
if (tmp) {
|
|
*flags &= ~tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("verbose", s1, LL_SBI_VERBOSE);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("noverbose", s1, LL_SBI_VERBOSE);
|
|
if (tmp) {
|
|
*flags &= ~tmp;
|
|
goto next;
|
|
}
|
|
tmp = ll_set_opt("always_ping", s1, LL_SBI_ALWAYS_PING);
|
|
if (tmp) {
|
|
*flags |= tmp;
|
|
goto next;
|
|
}
|
|
LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
|
|
s1);
|
|
return -EINVAL;
|
|
|
|
next:
|
|
/* Find next opt */
|
|
s2 = strchr(s1, ',');
|
|
if (!s2)
|
|
break;
|
|
s1 = s2 + 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void ll_lli_init(struct ll_inode_info *lli)
|
|
{
|
|
lli->lli_inode_magic = LLI_INODE_MAGIC;
|
|
lli->lli_flags = 0;
|
|
spin_lock_init(&lli->lli_lock);
|
|
lli->lli_posix_acl = NULL;
|
|
/* Do not set lli_fid, it has been initialized already. */
|
|
fid_zero(&lli->lli_pfid);
|
|
lli->lli_mds_read_och = NULL;
|
|
lli->lli_mds_write_och = NULL;
|
|
lli->lli_mds_exec_och = NULL;
|
|
lli->lli_open_fd_read_count = 0;
|
|
lli->lli_open_fd_write_count = 0;
|
|
lli->lli_open_fd_exec_count = 0;
|
|
mutex_init(&lli->lli_och_mutex);
|
|
spin_lock_init(&lli->lli_agl_lock);
|
|
spin_lock_init(&lli->lli_layout_lock);
|
|
ll_layout_version_set(lli, CL_LAYOUT_GEN_NONE);
|
|
lli->lli_clob = NULL;
|
|
|
|
init_rwsem(&lli->lli_xattrs_list_rwsem);
|
|
mutex_init(&lli->lli_xattrs_enq_lock);
|
|
|
|
LASSERT(lli->lli_vfs_inode.i_mode != 0);
|
|
if (S_ISDIR(lli->lli_vfs_inode.i_mode)) {
|
|
mutex_init(&lli->lli_readdir_mutex);
|
|
lli->lli_opendir_key = NULL;
|
|
lli->lli_sai = NULL;
|
|
spin_lock_init(&lli->lli_sa_lock);
|
|
lli->lli_opendir_pid = 0;
|
|
lli->lli_sa_enabled = 0;
|
|
lli->lli_def_stripe_offset = -1;
|
|
} else {
|
|
mutex_init(&lli->lli_size_mutex);
|
|
lli->lli_symlink_name = NULL;
|
|
init_rwsem(&lli->lli_trunc_sem);
|
|
range_lock_tree_init(&lli->lli_write_tree);
|
|
init_rwsem(&lli->lli_glimpse_sem);
|
|
lli->lli_glimpse_time = 0;
|
|
INIT_LIST_HEAD(&lli->lli_agl_list);
|
|
lli->lli_agl_index = 0;
|
|
lli->lli_async_rc = 0;
|
|
}
|
|
mutex_init(&lli->lli_layout_mutex);
|
|
}
|
|
|
|
int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
|
|
{
|
|
struct lustre_profile *lprof = NULL;
|
|
struct lustre_sb_info *lsi = s2lsi(sb);
|
|
struct ll_sb_info *sbi;
|
|
char *dt = NULL, *md = NULL;
|
|
char *profilenm = get_profile_name(sb);
|
|
struct config_llog_instance *cfg;
|
|
int err;
|
|
static atomic_t ll_bdi_num = ATOMIC_INIT(0);
|
|
|
|
CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
|
|
|
|
cfg = kzalloc(sizeof(*cfg), GFP_NOFS);
|
|
if (!cfg)
|
|
return -ENOMEM;
|
|
|
|
try_module_get(THIS_MODULE);
|
|
|
|
/* client additional sb info */
|
|
sbi = ll_init_sbi(sb);
|
|
lsi->lsi_llsbi = sbi;
|
|
if (!sbi) {
|
|
module_put(THIS_MODULE);
|
|
kfree(cfg);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
|
|
if (err)
|
|
goto out_free;
|
|
|
|
err = super_setup_bdi_name(sb, "lustre-%d",
|
|
atomic_inc_return(&ll_bdi_num));
|
|
if (err)
|
|
goto out_free;
|
|
|
|
/* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
|
|
sb->s_d_op = &ll_d_ops;
|
|
|
|
/* Generate a string unique to this super, in case some joker tries
|
|
* to mount the same fs at two mount points.
|
|
* Use the address of the super itself.
|
|
*/
|
|
cfg->cfg_instance = sb;
|
|
cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
|
|
cfg->cfg_callback = class_config_llog_handler;
|
|
/* set up client obds */
|
|
err = lustre_process_log(sb, profilenm, cfg);
|
|
if (err < 0)
|
|
goto out_free;
|
|
|
|
/* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
|
|
lprof = class_get_profile(profilenm);
|
|
if (!lprof) {
|
|
LCONSOLE_ERROR_MSG(0x156,
|
|
"The client profile '%s' could not be read from the MGS. Does that filesystem exist?\n",
|
|
profilenm);
|
|
err = -EINVAL;
|
|
goto out_free;
|
|
}
|
|
CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
|
|
lprof->lp_md, lprof->lp_dt);
|
|
|
|
dt = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
|
|
if (!dt) {
|
|
err = -ENOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
md = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_md, cfg->cfg_instance);
|
|
if (!md) {
|
|
err = -ENOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
/* connections, registrations, sb setup */
|
|
err = client_common_fill_super(sb, md, dt, mnt);
|
|
if (!err)
|
|
sbi->ll_client_common_fill_super_succeeded = 1;
|
|
|
|
out_free:
|
|
kfree(md);
|
|
kfree(dt);
|
|
if (lprof)
|
|
class_put_profile(lprof);
|
|
if (err)
|
|
ll_put_super(sb);
|
|
else if (sbi->ll_flags & LL_SBI_VERBOSE)
|
|
LCONSOLE_WARN("Mounted %s\n", profilenm);
|
|
|
|
kfree(cfg);
|
|
return err;
|
|
} /* ll_fill_super */
|
|
|
|
void ll_put_super(struct super_block *sb)
|
|
{
|
|
struct config_llog_instance cfg, params_cfg;
|
|
struct obd_device *obd;
|
|
struct lustre_sb_info *lsi = s2lsi(sb);
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
char *profilenm = get_profile_name(sb);
|
|
int next, force = 1, rc = 0;
|
|
long ccc_count;
|
|
|
|
CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
|
|
|
|
cfg.cfg_instance = sb;
|
|
lustre_end_log(sb, profilenm, &cfg);
|
|
|
|
params_cfg.cfg_instance = sb;
|
|
lustre_end_log(sb, PARAMS_FILENAME, ¶ms_cfg);
|
|
|
|
if (sbi->ll_md_exp) {
|
|
obd = class_exp2obd(sbi->ll_md_exp);
|
|
if (obd)
|
|
force = obd->obd_force;
|
|
}
|
|
|
|
/* Wait for unstable pages to be committed to stable storage */
|
|
if (!force) {
|
|
struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
|
|
|
|
rc = l_wait_event(sbi->ll_cache->ccc_unstable_waitq,
|
|
!atomic_long_read(&sbi->ll_cache->ccc_unstable_nr),
|
|
&lwi);
|
|
}
|
|
|
|
ccc_count = atomic_long_read(&sbi->ll_cache->ccc_unstable_nr);
|
|
if (!force && rc != -EINTR)
|
|
LASSERTF(!ccc_count, "count: %li\n", ccc_count);
|
|
|
|
/* We need to set force before the lov_disconnect in
|
|
* lustre_common_put_super, since l_d cleans up osc's as well.
|
|
*/
|
|
if (force) {
|
|
next = 0;
|
|
while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
|
|
&next)) != NULL) {
|
|
obd->obd_force = force;
|
|
}
|
|
}
|
|
|
|
if (sbi->ll_client_common_fill_super_succeeded) {
|
|
/* Only if client_common_fill_super succeeded */
|
|
client_common_put_super(sb);
|
|
}
|
|
|
|
next = 0;
|
|
while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)))
|
|
class_manual_cleanup(obd);
|
|
|
|
if (sbi->ll_flags & LL_SBI_VERBOSE)
|
|
LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : "");
|
|
|
|
if (profilenm)
|
|
class_del_profile(profilenm);
|
|
|
|
ll_free_sbi(sb);
|
|
lsi->lsi_llsbi = NULL;
|
|
|
|
lustre_common_put_super(sb);
|
|
|
|
cl_env_cache_purge(~0);
|
|
|
|
module_put(THIS_MODULE);
|
|
} /* client_put_super */
|
|
|
|
struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
|
|
{
|
|
struct inode *inode = NULL;
|
|
|
|
/* NOTE: we depend on atomic igrab() -bzzz */
|
|
lock_res_and_lock(lock);
|
|
if (lock->l_resource->lr_lvb_inode) {
|
|
struct ll_inode_info *lli;
|
|
|
|
lli = ll_i2info(lock->l_resource->lr_lvb_inode);
|
|
if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
|
|
inode = igrab(lock->l_resource->lr_lvb_inode);
|
|
} else {
|
|
inode = lock->l_resource->lr_lvb_inode;
|
|
LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
|
|
D_WARNING, lock,
|
|
"lr_lvb_inode %p is bogus: magic %08x",
|
|
lock->l_resource->lr_lvb_inode,
|
|
lli->lli_inode_magic);
|
|
inode = NULL;
|
|
}
|
|
}
|
|
unlock_res_and_lock(lock);
|
|
return inode;
|
|
}
|
|
|
|
void ll_dir_clear_lsm_md(struct inode *inode)
|
|
{
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
|
|
LASSERT(S_ISDIR(inode->i_mode));
|
|
|
|
if (lli->lli_lsm_md) {
|
|
lmv_free_memmd(lli->lli_lsm_md);
|
|
lli->lli_lsm_md = NULL;
|
|
}
|
|
}
|
|
|
|
static struct inode *ll_iget_anon_dir(struct super_block *sb,
|
|
const struct lu_fid *fid,
|
|
struct lustre_md *md)
|
|
{
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
struct mdt_body *body = md->body;
|
|
struct inode *inode;
|
|
ino_t ino;
|
|
|
|
ino = cl_fid_build_ino(fid, sbi->ll_flags & LL_SBI_32BIT_API);
|
|
inode = iget_locked(sb, ino);
|
|
if (!inode) {
|
|
CERROR("%s: failed get simple inode " DFID ": rc = -ENOENT\n",
|
|
ll_get_fsname(sb, NULL, 0), PFID(fid));
|
|
return ERR_PTR(-ENOENT);
|
|
}
|
|
|
|
if (inode->i_state & I_NEW) {
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
struct lmv_stripe_md *lsm = md->lmv;
|
|
|
|
inode->i_mode = (inode->i_mode & ~S_IFMT) |
|
|
(body->mbo_mode & S_IFMT);
|
|
LASSERTF(S_ISDIR(inode->i_mode), "Not slave inode " DFID "\n",
|
|
PFID(fid));
|
|
|
|
LTIME_S(inode->i_mtime) = 0;
|
|
LTIME_S(inode->i_atime) = 0;
|
|
LTIME_S(inode->i_ctime) = 0;
|
|
inode->i_rdev = 0;
|
|
|
|
inode->i_op = &ll_dir_inode_operations;
|
|
inode->i_fop = &ll_dir_operations;
|
|
lli->lli_fid = *fid;
|
|
ll_lli_init(lli);
|
|
|
|
LASSERT(lsm);
|
|
/* master object FID */
|
|
lli->lli_pfid = body->mbo_fid1;
|
|
CDEBUG(D_INODE, "lli %p slave " DFID " master " DFID "\n",
|
|
lli, PFID(fid), PFID(&lli->lli_pfid));
|
|
unlock_new_inode(inode);
|
|
}
|
|
|
|
return inode;
|
|
}
|
|
|
|
static int ll_init_lsm_md(struct inode *inode, struct lustre_md *md)
|
|
{
|
|
struct lmv_stripe_md *lsm = md->lmv;
|
|
struct lu_fid *fid;
|
|
int i;
|
|
|
|
LASSERT(lsm);
|
|
/*
|
|
* XXX sigh, this lsm_root initialization should be in
|
|
* LMV layer, but it needs ll_iget right now, so we
|
|
* put this here right now.
|
|
*/
|
|
for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
|
|
fid = &lsm->lsm_md_oinfo[i].lmo_fid;
|
|
LASSERT(!lsm->lsm_md_oinfo[i].lmo_root);
|
|
/* Unfortunately ll_iget will call ll_update_inode,
|
|
* where the initialization of slave inode is slightly
|
|
* different, so it reset lsm_md to NULL to avoid
|
|
* initializing lsm for slave inode.
|
|
*/
|
|
/* For migrating inode, master stripe and master object will
|
|
* be same, so we only need assign this inode
|
|
*/
|
|
if (lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION && !i)
|
|
lsm->lsm_md_oinfo[i].lmo_root = inode;
|
|
else
|
|
lsm->lsm_md_oinfo[i].lmo_root =
|
|
ll_iget_anon_dir(inode->i_sb, fid, md);
|
|
if (IS_ERR(lsm->lsm_md_oinfo[i].lmo_root)) {
|
|
int rc = PTR_ERR(lsm->lsm_md_oinfo[i].lmo_root);
|
|
|
|
lsm->lsm_md_oinfo[i].lmo_root = NULL;
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int lli_lsm_md_eq(const struct lmv_stripe_md *lsm_md1,
|
|
const struct lmv_stripe_md *lsm_md2)
|
|
{
|
|
return lsm_md1->lsm_md_magic == lsm_md2->lsm_md_magic &&
|
|
lsm_md1->lsm_md_stripe_count == lsm_md2->lsm_md_stripe_count &&
|
|
lsm_md1->lsm_md_master_mdt_index ==
|
|
lsm_md2->lsm_md_master_mdt_index &&
|
|
lsm_md1->lsm_md_hash_type == lsm_md2->lsm_md_hash_type &&
|
|
lsm_md1->lsm_md_layout_version ==
|
|
lsm_md2->lsm_md_layout_version &&
|
|
!strcmp(lsm_md1->lsm_md_pool_name,
|
|
lsm_md2->lsm_md_pool_name);
|
|
}
|
|
|
|
static int ll_update_lsm_md(struct inode *inode, struct lustre_md *md)
|
|
{
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
struct lmv_stripe_md *lsm = md->lmv;
|
|
int rc;
|
|
|
|
LASSERT(S_ISDIR(inode->i_mode));
|
|
CDEBUG(D_INODE, "update lsm %p of " DFID "\n", lli->lli_lsm_md,
|
|
PFID(ll_inode2fid(inode)));
|
|
|
|
/* no striped information from request. */
|
|
if (!lsm) {
|
|
if (!lli->lli_lsm_md) {
|
|
return 0;
|
|
} else if (lli->lli_lsm_md->lsm_md_hash_type &
|
|
LMV_HASH_FLAG_MIGRATION) {
|
|
/*
|
|
* migration is done, the temporay MIGRATE layout has
|
|
* been removed
|
|
*/
|
|
CDEBUG(D_INODE, DFID " finish migration.\n",
|
|
PFID(ll_inode2fid(inode)));
|
|
lmv_free_memmd(lli->lli_lsm_md);
|
|
lli->lli_lsm_md = NULL;
|
|
return 0;
|
|
} else {
|
|
/*
|
|
* The lustre_md from req does not include stripeEA,
|
|
* see ll_md_setattr
|
|
*/
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* set the directory layout */
|
|
if (!lli->lli_lsm_md) {
|
|
struct cl_attr *attr;
|
|
|
|
rc = ll_init_lsm_md(inode, md);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/*
|
|
* set lsm_md to NULL, so the following free lustre_md
|
|
* will not free this lsm
|
|
*/
|
|
md->lmv = NULL;
|
|
lli->lli_lsm_md = lsm;
|
|
|
|
attr = kzalloc(sizeof(*attr), GFP_NOFS);
|
|
if (!attr)
|
|
return -ENOMEM;
|
|
|
|
/* validate the lsm */
|
|
rc = md_merge_attr(ll_i2mdexp(inode), lsm, attr,
|
|
ll_md_blocking_ast);
|
|
if (rc) {
|
|
kfree(attr);
|
|
return rc;
|
|
}
|
|
|
|
if (md->body->mbo_valid & OBD_MD_FLNLINK)
|
|
md->body->mbo_nlink = attr->cat_nlink;
|
|
if (md->body->mbo_valid & OBD_MD_FLSIZE)
|
|
md->body->mbo_size = attr->cat_size;
|
|
if (md->body->mbo_valid & OBD_MD_FLATIME)
|
|
md->body->mbo_atime = attr->cat_atime;
|
|
if (md->body->mbo_valid & OBD_MD_FLCTIME)
|
|
md->body->mbo_ctime = attr->cat_ctime;
|
|
if (md->body->mbo_valid & OBD_MD_FLMTIME)
|
|
md->body->mbo_mtime = attr->cat_mtime;
|
|
|
|
kfree(attr);
|
|
|
|
CDEBUG(D_INODE, "Set lsm %p magic %x to " DFID "\n", lsm,
|
|
lsm->lsm_md_magic, PFID(ll_inode2fid(inode)));
|
|
return 0;
|
|
}
|
|
|
|
/* Compare the old and new stripe information */
|
|
if (!lsm_md_eq(lli->lli_lsm_md, lsm)) {
|
|
struct lmv_stripe_md *old_lsm = lli->lli_lsm_md;
|
|
int idx;
|
|
|
|
CERROR("%s: inode " DFID "(%p)'s lmv layout mismatch (%p)/(%p) magic:0x%x/0x%x stripe count: %d/%d master_mdt: %d/%d hash_type:0x%x/0x%x layout: 0x%x/0x%x pool:%s/%s\n",
|
|
ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid),
|
|
inode, lsm, old_lsm,
|
|
lsm->lsm_md_magic, old_lsm->lsm_md_magic,
|
|
lsm->lsm_md_stripe_count,
|
|
old_lsm->lsm_md_stripe_count,
|
|
lsm->lsm_md_master_mdt_index,
|
|
old_lsm->lsm_md_master_mdt_index,
|
|
lsm->lsm_md_hash_type, old_lsm->lsm_md_hash_type,
|
|
lsm->lsm_md_layout_version,
|
|
old_lsm->lsm_md_layout_version,
|
|
lsm->lsm_md_pool_name,
|
|
old_lsm->lsm_md_pool_name);
|
|
|
|
for (idx = 0; idx < old_lsm->lsm_md_stripe_count; idx++) {
|
|
CERROR("%s: sub FIDs in old lsm idx %d, old: " DFID "\n",
|
|
ll_get_fsname(inode->i_sb, NULL, 0), idx,
|
|
PFID(&old_lsm->lsm_md_oinfo[idx].lmo_fid));
|
|
}
|
|
|
|
for (idx = 0; idx < lsm->lsm_md_stripe_count; idx++) {
|
|
CERROR("%s: sub FIDs in new lsm idx %d, new: " DFID "\n",
|
|
ll_get_fsname(inode->i_sb, NULL, 0), idx,
|
|
PFID(&lsm->lsm_md_oinfo[idx].lmo_fid));
|
|
}
|
|
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ll_clear_inode(struct inode *inode)
|
|
{
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
struct ll_sb_info *sbi = ll_i2sbi(inode);
|
|
|
|
CDEBUG(D_VFSTRACE, "VFS Op:inode=" DFID "(%p)\n",
|
|
PFID(ll_inode2fid(inode)), inode);
|
|
|
|
if (S_ISDIR(inode->i_mode)) {
|
|
/* these should have been cleared in ll_file_release */
|
|
LASSERT(!lli->lli_opendir_key);
|
|
LASSERT(!lli->lli_sai);
|
|
LASSERT(lli->lli_opendir_pid == 0);
|
|
}
|
|
|
|
md_null_inode(sbi->ll_md_exp, ll_inode2fid(inode));
|
|
|
|
LASSERT(!lli->lli_open_fd_write_count);
|
|
LASSERT(!lli->lli_open_fd_read_count);
|
|
LASSERT(!lli->lli_open_fd_exec_count);
|
|
|
|
if (lli->lli_mds_write_och)
|
|
ll_md_real_close(inode, FMODE_WRITE);
|
|
if (lli->lli_mds_exec_och)
|
|
ll_md_real_close(inode, FMODE_EXEC);
|
|
if (lli->lli_mds_read_och)
|
|
ll_md_real_close(inode, FMODE_READ);
|
|
|
|
if (S_ISLNK(inode->i_mode)) {
|
|
kfree(lli->lli_symlink_name);
|
|
lli->lli_symlink_name = NULL;
|
|
}
|
|
|
|
ll_xattr_cache_destroy(inode);
|
|
|
|
#ifdef CONFIG_FS_POSIX_ACL
|
|
forget_all_cached_acls(inode);
|
|
if (lli->lli_posix_acl) {
|
|
posix_acl_release(lli->lli_posix_acl);
|
|
lli->lli_posix_acl = NULL;
|
|
}
|
|
#endif
|
|
lli->lli_inode_magic = LLI_INODE_DEAD;
|
|
|
|
if (S_ISDIR(inode->i_mode))
|
|
ll_dir_clear_lsm_md(inode);
|
|
if (S_ISREG(inode->i_mode) && !is_bad_inode(inode))
|
|
LASSERT(list_empty(&lli->lli_agl_list));
|
|
|
|
/*
|
|
* XXX This has to be done before lsm is freed below, because
|
|
* cl_object still uses inode lsm.
|
|
*/
|
|
cl_inode_fini(inode);
|
|
}
|
|
|
|
#define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
|
|
|
|
static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data)
|
|
{
|
|
struct lustre_md md;
|
|
struct inode *inode = d_inode(dentry);
|
|
struct ll_sb_info *sbi = ll_i2sbi(inode);
|
|
struct ptlrpc_request *request = NULL;
|
|
int rc, ia_valid;
|
|
|
|
op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
|
|
LUSTRE_OPC_ANY, NULL);
|
|
if (IS_ERR(op_data))
|
|
return PTR_ERR(op_data);
|
|
|
|
rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, &request);
|
|
if (rc) {
|
|
ptlrpc_req_finished(request);
|
|
if (rc == -ENOENT) {
|
|
clear_nlink(inode);
|
|
/* Unlinked special device node? Or just a race?
|
|
* Pretend we did everything.
|
|
*/
|
|
if (!S_ISREG(inode->i_mode) &&
|
|
!S_ISDIR(inode->i_mode)) {
|
|
ia_valid = op_data->op_attr.ia_valid;
|
|
op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS;
|
|
rc = simple_setattr(dentry, &op_data->op_attr);
|
|
op_data->op_attr.ia_valid = ia_valid;
|
|
}
|
|
} else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
|
|
CERROR("md_setattr fails: rc = %d\n", rc);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
|
|
sbi->ll_md_exp, &md);
|
|
if (rc) {
|
|
ptlrpc_req_finished(request);
|
|
return rc;
|
|
}
|
|
|
|
ia_valid = op_data->op_attr.ia_valid;
|
|
/* inode size will be in cl_setattr_ost, can't do it now since dirty
|
|
* cache is not cleared yet.
|
|
*/
|
|
op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE);
|
|
if (S_ISREG(inode->i_mode))
|
|
inode_lock(inode);
|
|
rc = simple_setattr(dentry, &op_data->op_attr);
|
|
if (S_ISREG(inode->i_mode))
|
|
inode_unlock(inode);
|
|
op_data->op_attr.ia_valid = ia_valid;
|
|
|
|
rc = ll_update_inode(inode, &md);
|
|
ptlrpc_req_finished(request);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/* If this inode has objects allocated to it (lsm != NULL), then the OST
|
|
* object(s) determine the file size and mtime. Otherwise, the MDS will
|
|
* keep these values until such a time that objects are allocated for it.
|
|
* We do the MDS operations first, as it is checking permissions for us.
|
|
* We don't to the MDS RPC if there is nothing that we want to store there,
|
|
* otherwise there is no harm in updating mtime/atime on the MDS if we are
|
|
* going to do an RPC anyways.
|
|
*
|
|
* If we are doing a truncate, we will send the mtime and ctime updates
|
|
* to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
|
|
* I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
|
|
* at the same time.
|
|
*
|
|
* In case of HSMimport, we only set attr on MDS.
|
|
*/
|
|
int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
|
|
{
|
|
struct inode *inode = d_inode(dentry);
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
struct md_op_data *op_data = NULL;
|
|
int rc = 0;
|
|
|
|
CDEBUG(D_VFSTRACE, "%s: setattr inode " DFID "(%p) from %llu to %llu, valid %x, hsm_import %d\n",
|
|
ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid), inode,
|
|
i_size_read(inode), attr->ia_size, attr->ia_valid, hsm_import);
|
|
|
|
if (attr->ia_valid & ATTR_SIZE) {
|
|
/* Check new size against VFS/VM file size limit and rlimit */
|
|
rc = inode_newsize_ok(inode, attr->ia_size);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* The maximum Lustre file size is variable, based on the
|
|
* OST maximum object size and number of stripes. This
|
|
* needs another check in addition to the VFS check above.
|
|
*/
|
|
if (attr->ia_size > ll_file_maxbytes(inode)) {
|
|
CDEBUG(D_INODE, "file " DFID " too large %llu > %llu\n",
|
|
PFID(&lli->lli_fid), attr->ia_size,
|
|
ll_file_maxbytes(inode));
|
|
return -EFBIG;
|
|
}
|
|
|
|
attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
|
|
}
|
|
|
|
/* POSIX: check before ATTR_*TIME_SET set (from setattr_prepare) */
|
|
if (attr->ia_valid & TIMES_SET_FLAGS) {
|
|
if ((!uid_eq(current_fsuid(), inode->i_uid)) &&
|
|
!capable(CFS_CAP_FOWNER))
|
|
return -EPERM;
|
|
}
|
|
|
|
/* We mark all of the fields "set" so MDS/OST does not re-set them */
|
|
if (attr->ia_valid & ATTR_CTIME) {
|
|
attr->ia_ctime = current_time(inode);
|
|
attr->ia_valid |= ATTR_CTIME_SET;
|
|
}
|
|
if (!(attr->ia_valid & ATTR_ATIME_SET) &&
|
|
(attr->ia_valid & ATTR_ATIME)) {
|
|
attr->ia_atime = current_time(inode);
|
|
attr->ia_valid |= ATTR_ATIME_SET;
|
|
}
|
|
if (!(attr->ia_valid & ATTR_MTIME_SET) &&
|
|
(attr->ia_valid & ATTR_MTIME)) {
|
|
attr->ia_mtime = current_time(inode);
|
|
attr->ia_valid |= ATTR_MTIME_SET;
|
|
}
|
|
|
|
if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
|
|
CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %llu\n",
|
|
LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
|
|
(s64)ktime_get_real_seconds());
|
|
|
|
if (S_ISREG(inode->i_mode))
|
|
inode_unlock(inode);
|
|
|
|
/*
|
|
* We always do an MDS RPC, even if we're only changing the size;
|
|
* only the MDS knows whether truncate() should fail with -ETXTBUSY
|
|
*/
|
|
op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
|
|
if (!op_data) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
if (!hsm_import && attr->ia_valid & ATTR_SIZE) {
|
|
/*
|
|
* If we are changing file size, file content is
|
|
* modified, flag it.
|
|
*/
|
|
attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
|
|
op_data->op_bias |= MDS_DATA_MODIFIED;
|
|
clear_bit(LLIF_DATA_MODIFIED, &lli->lli_flags);
|
|
}
|
|
|
|
op_data->op_attr = *attr;
|
|
|
|
rc = ll_md_setattr(dentry, op_data);
|
|
if (rc)
|
|
goto out;
|
|
|
|
if (!S_ISREG(inode->i_mode) || hsm_import) {
|
|
rc = 0;
|
|
goto out;
|
|
}
|
|
|
|
if (attr->ia_valid & (ATTR_SIZE |
|
|
ATTR_ATIME | ATTR_ATIME_SET |
|
|
ATTR_MTIME | ATTR_MTIME_SET)) {
|
|
/* For truncate and utimes sending attributes to OSTs, setting
|
|
* mtime/atime to the past will be performed under PW [0:EOF]
|
|
* extent lock (new_size:EOF for truncate). It may seem
|
|
* excessive to send mtime/atime updates to OSTs when not
|
|
* setting times to past, but it is necessary due to possible
|
|
* time de-synchronization between MDT inode and OST objects
|
|
*/
|
|
rc = cl_setattr_ost(ll_i2info(inode)->lli_clob, attr, 0);
|
|
}
|
|
|
|
/*
|
|
* If the file was restored, it needs to set dirty flag.
|
|
*
|
|
* We've already sent MDS_DATA_MODIFIED flag in
|
|
* ll_md_setattr() for truncate. However, the MDT refuses to
|
|
* set the HS_DIRTY flag on released files, so we have to set
|
|
* it again if the file has been restored. Please check how
|
|
* LLIF_DATA_MODIFIED is set in vvp_io_setattr_fini().
|
|
*
|
|
* Please notice that if the file is not released, the previous
|
|
* MDS_DATA_MODIFIED has taken effect and usually
|
|
* LLIF_DATA_MODIFIED is not set(see vvp_io_setattr_fini()).
|
|
* This way we can save an RPC for common open + trunc
|
|
* operation.
|
|
*/
|
|
if (test_and_clear_bit(LLIF_DATA_MODIFIED, &lli->lli_flags)) {
|
|
struct hsm_state_set hss = {
|
|
.hss_valid = HSS_SETMASK,
|
|
.hss_setmask = HS_DIRTY,
|
|
};
|
|
int rc2;
|
|
|
|
rc2 = ll_hsm_state_set(inode, &hss);
|
|
/*
|
|
* truncate and write can happen at the same time, so that
|
|
* the file can be set modified even though the file is not
|
|
* restored from released state, and ll_hsm_state_set() is
|
|
* not applicable for the file, and rc2 < 0 is normal in this
|
|
* case.
|
|
*/
|
|
if (rc2 < 0)
|
|
CDEBUG(D_INFO, DFID "HSM set dirty failed: rc2 = %d\n",
|
|
PFID(ll_inode2fid(inode)), rc2);
|
|
}
|
|
|
|
out:
|
|
if (op_data)
|
|
ll_finish_md_op_data(op_data);
|
|
|
|
if (S_ISREG(inode->i_mode)) {
|
|
inode_lock(inode);
|
|
if ((attr->ia_valid & ATTR_SIZE) && !hsm_import)
|
|
inode_dio_wait(inode);
|
|
}
|
|
|
|
ll_stats_ops_tally(ll_i2sbi(inode), (attr->ia_valid & ATTR_SIZE) ?
|
|
LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int ll_setattr(struct dentry *de, struct iattr *attr)
|
|
{
|
|
int mode = d_inode(de)->i_mode;
|
|
|
|
if ((attr->ia_valid & (ATTR_CTIME | ATTR_SIZE | ATTR_MODE)) ==
|
|
(ATTR_CTIME | ATTR_SIZE | ATTR_MODE))
|
|
attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
|
|
|
|
if (((attr->ia_valid & (ATTR_MODE | ATTR_FORCE | ATTR_SIZE)) ==
|
|
(ATTR_SIZE | ATTR_MODE)) &&
|
|
(((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
|
|
(((mode & (S_ISGID | 0010)) == (S_ISGID | 0010)) &&
|
|
!(attr->ia_mode & S_ISGID))))
|
|
attr->ia_valid |= ATTR_FORCE;
|
|
|
|
if ((attr->ia_valid & ATTR_MODE) &&
|
|
(mode & S_ISUID) &&
|
|
!(attr->ia_mode & S_ISUID) &&
|
|
!(attr->ia_valid & ATTR_KILL_SUID))
|
|
attr->ia_valid |= ATTR_KILL_SUID;
|
|
|
|
if ((attr->ia_valid & ATTR_MODE) &&
|
|
((mode & (S_ISGID | 0010)) == (S_ISGID | 0010)) &&
|
|
!(attr->ia_mode & S_ISGID) &&
|
|
!(attr->ia_valid & ATTR_KILL_SGID))
|
|
attr->ia_valid |= ATTR_KILL_SGID;
|
|
|
|
return ll_setattr_raw(de, attr, false);
|
|
}
|
|
|
|
int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
|
|
__u64 max_age, __u32 flags)
|
|
{
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
struct obd_statfs obd_osfs;
|
|
int rc;
|
|
|
|
rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags);
|
|
if (rc) {
|
|
CERROR("md_statfs fails: rc = %d\n", rc);
|
|
return rc;
|
|
}
|
|
|
|
osfs->os_type = sb->s_magic;
|
|
|
|
CDEBUG(D_SUPER, "MDC blocks %llu/%llu objects %llu/%llu\n",
|
|
osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,
|
|
osfs->os_files);
|
|
|
|
if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
|
|
flags |= OBD_STATFS_NODELAY;
|
|
|
|
rc = obd_statfs_rqset(sbi->ll_dt_exp, &obd_osfs, max_age, flags);
|
|
if (rc) {
|
|
CERROR("obd_statfs fails: rc = %d\n", rc);
|
|
return rc;
|
|
}
|
|
|
|
CDEBUG(D_SUPER, "OSC blocks %llu/%llu objects %llu/%llu\n",
|
|
obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
|
|
obd_osfs.os_files);
|
|
|
|
osfs->os_bsize = obd_osfs.os_bsize;
|
|
osfs->os_blocks = obd_osfs.os_blocks;
|
|
osfs->os_bfree = obd_osfs.os_bfree;
|
|
osfs->os_bavail = obd_osfs.os_bavail;
|
|
|
|
/* If we don't have as many objects free on the OST as inodes
|
|
* on the MDS, we reduce the total number of inodes to
|
|
* compensate, so that the "inodes in use" number is correct.
|
|
*/
|
|
if (obd_osfs.os_ffree < osfs->os_ffree) {
|
|
osfs->os_files = (osfs->os_files - osfs->os_ffree) +
|
|
obd_osfs.os_ffree;
|
|
osfs->os_ffree = obd_osfs.os_ffree;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int ll_statfs(struct dentry *de, struct kstatfs *sfs)
|
|
{
|
|
struct super_block *sb = de->d_sb;
|
|
struct obd_statfs osfs;
|
|
int rc;
|
|
|
|
CDEBUG(D_VFSTRACE, "VFS Op: at %llu jiffies\n", get_jiffies_64());
|
|
ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
|
|
|
|
/* Some amount of caching on the client is allowed */
|
|
rc = ll_statfs_internal(sb, &osfs,
|
|
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
|
|
0);
|
|
if (rc)
|
|
return rc;
|
|
|
|
statfs_unpack(sfs, &osfs);
|
|
|
|
/* We need to downshift for all 32-bit kernels, because we can't
|
|
* tell if the kernel is being called via sys_statfs64() or not.
|
|
* Stop before overflowing f_bsize - in which case it is better
|
|
* to just risk EOVERFLOW if caller is using old sys_statfs().
|
|
*/
|
|
if (sizeof(long) < 8) {
|
|
while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
|
|
sfs->f_bsize <<= 1;
|
|
|
|
osfs.os_blocks >>= 1;
|
|
osfs.os_bfree >>= 1;
|
|
osfs.os_bavail >>= 1;
|
|
}
|
|
}
|
|
|
|
sfs->f_blocks = osfs.os_blocks;
|
|
sfs->f_bfree = osfs.os_bfree;
|
|
sfs->f_bavail = osfs.os_bavail;
|
|
sfs->f_fsid = ll_s2sbi(sb)->ll_fsid;
|
|
return 0;
|
|
}
|
|
|
|
void ll_inode_size_lock(struct inode *inode)
|
|
{
|
|
struct ll_inode_info *lli;
|
|
|
|
LASSERT(!S_ISDIR(inode->i_mode));
|
|
|
|
lli = ll_i2info(inode);
|
|
mutex_lock(&lli->lli_size_mutex);
|
|
}
|
|
|
|
void ll_inode_size_unlock(struct inode *inode)
|
|
{
|
|
struct ll_inode_info *lli;
|
|
|
|
lli = ll_i2info(inode);
|
|
mutex_unlock(&lli->lli_size_mutex);
|
|
}
|
|
|
|
int ll_update_inode(struct inode *inode, struct lustre_md *md)
|
|
{
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
struct mdt_body *body = md->body;
|
|
struct ll_sb_info *sbi = ll_i2sbi(inode);
|
|
|
|
if (body->mbo_valid & OBD_MD_FLEASIZE)
|
|
cl_file_inode_init(inode, md);
|
|
|
|
if (S_ISDIR(inode->i_mode)) {
|
|
int rc;
|
|
|
|
rc = ll_update_lsm_md(inode, md);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
#ifdef CONFIG_FS_POSIX_ACL
|
|
if (body->mbo_valid & OBD_MD_FLACL) {
|
|
spin_lock(&lli->lli_lock);
|
|
if (lli->lli_posix_acl)
|
|
posix_acl_release(lli->lli_posix_acl);
|
|
lli->lli_posix_acl = md->posix_acl;
|
|
spin_unlock(&lli->lli_lock);
|
|
}
|
|
#endif
|
|
inode->i_ino = cl_fid_build_ino(&body->mbo_fid1,
|
|
sbi->ll_flags & LL_SBI_32BIT_API);
|
|
inode->i_generation = cl_fid_build_gen(&body->mbo_fid1);
|
|
|
|
if (body->mbo_valid & OBD_MD_FLATIME) {
|
|
if (body->mbo_atime > LTIME_S(inode->i_atime))
|
|
LTIME_S(inode->i_atime) = body->mbo_atime;
|
|
lli->lli_atime = body->mbo_atime;
|
|
}
|
|
if (body->mbo_valid & OBD_MD_FLMTIME) {
|
|
if (body->mbo_mtime > LTIME_S(inode->i_mtime)) {
|
|
CDEBUG(D_INODE,
|
|
"setting ino %lu mtime from %lu to %llu\n",
|
|
inode->i_ino, LTIME_S(inode->i_mtime),
|
|
body->mbo_mtime);
|
|
LTIME_S(inode->i_mtime) = body->mbo_mtime;
|
|
}
|
|
lli->lli_mtime = body->mbo_mtime;
|
|
}
|
|
if (body->mbo_valid & OBD_MD_FLCTIME) {
|
|
if (body->mbo_ctime > LTIME_S(inode->i_ctime))
|
|
LTIME_S(inode->i_ctime) = body->mbo_ctime;
|
|
lli->lli_ctime = body->mbo_ctime;
|
|
}
|
|
if (body->mbo_valid & OBD_MD_FLMODE)
|
|
inode->i_mode = (inode->i_mode & S_IFMT) |
|
|
(body->mbo_mode & ~S_IFMT);
|
|
if (body->mbo_valid & OBD_MD_FLTYPE)
|
|
inode->i_mode = (inode->i_mode & ~S_IFMT) |
|
|
(body->mbo_mode & S_IFMT);
|
|
LASSERT(inode->i_mode != 0);
|
|
if (S_ISREG(inode->i_mode))
|
|
inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1,
|
|
LL_MAX_BLKSIZE_BITS);
|
|
else
|
|
inode->i_blkbits = inode->i_sb->s_blocksize_bits;
|
|
if (body->mbo_valid & OBD_MD_FLUID)
|
|
inode->i_uid = make_kuid(&init_user_ns, body->mbo_uid);
|
|
if (body->mbo_valid & OBD_MD_FLGID)
|
|
inode->i_gid = make_kgid(&init_user_ns, body->mbo_gid);
|
|
if (body->mbo_valid & OBD_MD_FLFLAGS)
|
|
inode->i_flags = ll_ext_to_inode_flags(body->mbo_flags);
|
|
if (body->mbo_valid & OBD_MD_FLNLINK)
|
|
set_nlink(inode, body->mbo_nlink);
|
|
if (body->mbo_valid & OBD_MD_FLRDEV)
|
|
inode->i_rdev = old_decode_dev(body->mbo_rdev);
|
|
|
|
if (body->mbo_valid & OBD_MD_FLID) {
|
|
/* FID shouldn't be changed! */
|
|
if (fid_is_sane(&lli->lli_fid)) {
|
|
LASSERTF(lu_fid_eq(&lli->lli_fid, &body->mbo_fid1),
|
|
"Trying to change FID " DFID " to the " DFID ", inode " DFID "(%p)\n",
|
|
PFID(&lli->lli_fid), PFID(&body->mbo_fid1),
|
|
PFID(ll_inode2fid(inode)), inode);
|
|
} else {
|
|
lli->lli_fid = body->mbo_fid1;
|
|
}
|
|
}
|
|
|
|
LASSERT(fid_seq(&lli->lli_fid) != 0);
|
|
|
|
if (body->mbo_valid & OBD_MD_FLSIZE) {
|
|
i_size_write(inode, body->mbo_size);
|
|
|
|
CDEBUG(D_VFSTRACE, "inode=" DFID ", updating i_size %llu\n",
|
|
PFID(ll_inode2fid(inode)),
|
|
(unsigned long long)body->mbo_size);
|
|
|
|
if (body->mbo_valid & OBD_MD_FLBLOCKS)
|
|
inode->i_blocks = body->mbo_blocks;
|
|
}
|
|
|
|
if (body->mbo_valid & OBD_MD_TSTATE) {
|
|
if (body->mbo_t_state & MS_RESTORE)
|
|
set_bit(LLIF_FILE_RESTORING, &lli->lli_flags);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ll_read_inode2(struct inode *inode, void *opaque)
|
|
{
|
|
struct lustre_md *md = opaque;
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
int rc;
|
|
|
|
CDEBUG(D_VFSTRACE, "VFS Op:inode=" DFID "(%p)\n",
|
|
PFID(&lli->lli_fid), inode);
|
|
|
|
/* Core attributes from the MDS first. This is a new inode, and
|
|
* the VFS doesn't zero times in the core inode so we have to do
|
|
* it ourselves. They will be overwritten by either MDS or OST
|
|
* attributes - we just need to make sure they aren't newer.
|
|
*/
|
|
LTIME_S(inode->i_mtime) = 0;
|
|
LTIME_S(inode->i_atime) = 0;
|
|
LTIME_S(inode->i_ctime) = 0;
|
|
inode->i_rdev = 0;
|
|
rc = ll_update_inode(inode, md);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* OIDEBUG(inode); */
|
|
|
|
if (S_ISREG(inode->i_mode)) {
|
|
struct ll_sb_info *sbi = ll_i2sbi(inode);
|
|
|
|
inode->i_op = &ll_file_inode_operations;
|
|
inode->i_fop = sbi->ll_fop;
|
|
inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
|
|
} else if (S_ISDIR(inode->i_mode)) {
|
|
inode->i_op = &ll_dir_inode_operations;
|
|
inode->i_fop = &ll_dir_operations;
|
|
} else if (S_ISLNK(inode->i_mode)) {
|
|
inode->i_op = &ll_fast_symlink_inode_operations;
|
|
} else {
|
|
inode->i_op = &ll_special_inode_operations;
|
|
|
|
init_special_inode(inode, inode->i_mode,
|
|
inode->i_rdev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ll_delete_inode(struct inode *inode)
|
|
{
|
|
struct ll_inode_info *lli = ll_i2info(inode);
|
|
|
|
if (S_ISREG(inode->i_mode) && lli->lli_clob)
|
|
/* discard all dirty pages before truncating them, required by
|
|
* osc_extent implementation at LU-1030.
|
|
*/
|
|
cl_sync_file_range(inode, 0, OBD_OBJECT_EOF,
|
|
CL_FSYNC_LOCAL, 1);
|
|
|
|
truncate_inode_pages_final(&inode->i_data);
|
|
|
|
LASSERTF(!inode->i_data.nrpages,
|
|
"inode=" DFID "(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n",
|
|
PFID(ll_inode2fid(inode)), inode, inode->i_data.nrpages);
|
|
|
|
ll_clear_inode(inode);
|
|
clear_inode(inode);
|
|
}
|
|
|
|
int ll_iocontrol(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct ll_sb_info *sbi = ll_i2sbi(inode);
|
|
struct ptlrpc_request *req = NULL;
|
|
int rc, flags = 0;
|
|
|
|
switch (cmd) {
|
|
case FSFILT_IOC_GETFLAGS: {
|
|
struct mdt_body *body;
|
|
struct md_op_data *op_data;
|
|
|
|
op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
|
|
0, 0, LUSTRE_OPC_ANY,
|
|
NULL);
|
|
if (IS_ERR(op_data))
|
|
return PTR_ERR(op_data);
|
|
|
|
op_data->op_valid = OBD_MD_FLFLAGS;
|
|
rc = md_getattr(sbi->ll_md_exp, op_data, &req);
|
|
ll_finish_md_op_data(op_data);
|
|
if (rc) {
|
|
CERROR("%s: failure inode " DFID ": rc = %d\n",
|
|
sbi->ll_md_exp->exp_obd->obd_name,
|
|
PFID(ll_inode2fid(inode)), rc);
|
|
return -abs(rc);
|
|
}
|
|
|
|
body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
|
|
|
|
flags = body->mbo_flags;
|
|
|
|
ptlrpc_req_finished(req);
|
|
|
|
return put_user(flags, (int __user *)arg);
|
|
}
|
|
case FSFILT_IOC_SETFLAGS: {
|
|
struct md_op_data *op_data;
|
|
struct cl_object *obj;
|
|
struct iattr *attr;
|
|
|
|
if (get_user(flags, (int __user *)arg))
|
|
return -EFAULT;
|
|
|
|
op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
|
|
LUSTRE_OPC_ANY, NULL);
|
|
if (IS_ERR(op_data))
|
|
return PTR_ERR(op_data);
|
|
|
|
op_data->op_attr_flags = flags;
|
|
op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
|
|
rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, &req);
|
|
ll_finish_md_op_data(op_data);
|
|
ptlrpc_req_finished(req);
|
|
if (rc)
|
|
return rc;
|
|
|
|
inode->i_flags = ll_ext_to_inode_flags(flags);
|
|
|
|
obj = ll_i2info(inode)->lli_clob;
|
|
if (!obj)
|
|
return 0;
|
|
|
|
attr = kzalloc(sizeof(*attr), GFP_NOFS);
|
|
if (!attr)
|
|
return -ENOMEM;
|
|
|
|
attr->ia_valid = ATTR_ATTR_FLAG;
|
|
rc = cl_setattr_ost(obj, attr, flags);
|
|
kfree(attr);
|
|
return rc;
|
|
}
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ll_flush_ctx(struct inode *inode)
|
|
{
|
|
struct ll_sb_info *sbi = ll_i2sbi(inode);
|
|
|
|
CDEBUG(D_SEC, "flush context for user %d\n",
|
|
from_kuid(&init_user_ns, current_uid()));
|
|
|
|
obd_set_info_async(NULL, sbi->ll_md_exp,
|
|
sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
|
|
0, NULL, NULL);
|
|
obd_set_info_async(NULL, sbi->ll_dt_exp,
|
|
sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
|
|
0, NULL, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/* umount -f client means force down, don't save state */
|
|
void ll_umount_begin(struct super_block *sb)
|
|
{
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
struct obd_device *obd;
|
|
struct obd_ioctl_data *ioc_data;
|
|
wait_queue_head_t waitq;
|
|
struct l_wait_info lwi;
|
|
|
|
CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
|
|
sb->s_count, atomic_read(&sb->s_active));
|
|
|
|
obd = class_exp2obd(sbi->ll_md_exp);
|
|
if (!obd) {
|
|
CERROR("Invalid MDC connection handle %#llx\n",
|
|
sbi->ll_md_exp->exp_handle.h_cookie);
|
|
return;
|
|
}
|
|
obd->obd_force = 1;
|
|
|
|
obd = class_exp2obd(sbi->ll_dt_exp);
|
|
if (!obd) {
|
|
CERROR("Invalid LOV connection handle %#llx\n",
|
|
sbi->ll_dt_exp->exp_handle.h_cookie);
|
|
return;
|
|
}
|
|
obd->obd_force = 1;
|
|
|
|
ioc_data = kzalloc(sizeof(*ioc_data), GFP_NOFS);
|
|
if (ioc_data) {
|
|
obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
|
|
sizeof(*ioc_data), ioc_data, NULL);
|
|
|
|
obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
|
|
sizeof(*ioc_data), ioc_data, NULL);
|
|
|
|
kfree(ioc_data);
|
|
}
|
|
|
|
/* Really, we'd like to wait until there are no requests outstanding,
|
|
* and then continue. For now, we just periodically checking for vfs
|
|
* to decrement mnt_cnt and hope to finish it within 10sec.
|
|
*/
|
|
init_waitqueue_head(&waitq);
|
|
lwi = LWI_TIMEOUT_INTERVAL(cfs_time_seconds(10),
|
|
cfs_time_seconds(1), NULL, NULL);
|
|
l_wait_event(waitq, may_umount(sbi->ll_mnt.mnt), &lwi);
|
|
|
|
schedule();
|
|
}
|
|
|
|
int ll_remount_fs(struct super_block *sb, int *flags, char *data)
|
|
{
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
char *profilenm = get_profile_name(sb);
|
|
int err;
|
|
__u32 read_only;
|
|
|
|
if ((bool)(*flags & SB_RDONLY) != sb_rdonly(sb)) {
|
|
read_only = *flags & SB_RDONLY;
|
|
err = obd_set_info_async(NULL, sbi->ll_md_exp,
|
|
sizeof(KEY_READ_ONLY),
|
|
KEY_READ_ONLY, sizeof(read_only),
|
|
&read_only, NULL);
|
|
if (err) {
|
|
LCONSOLE_WARN("Failed to remount %s %s (%d)\n",
|
|
profilenm, read_only ?
|
|
"read-only" : "read-write", err);
|
|
return err;
|
|
}
|
|
|
|
if (read_only)
|
|
sb->s_flags |= SB_RDONLY;
|
|
else
|
|
sb->s_flags &= ~SB_RDONLY;
|
|
|
|
if (sbi->ll_flags & LL_SBI_VERBOSE)
|
|
LCONSOLE_WARN("Remounted %s %s\n", profilenm,
|
|
read_only ? "read-only" : "read-write");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Cleanup the open handle that is cached on MDT-side.
|
|
*
|
|
* For open case, the client side open handling thread may hit error
|
|
* after the MDT grant the open. Under such case, the client should
|
|
* send close RPC to the MDT as cleanup; otherwise, the open handle
|
|
* on the MDT will be leaked there until the client umount or evicted.
|
|
*
|
|
* In further, if someone unlinked the file, because the open handle
|
|
* holds the reference on such file/object, then it will block the
|
|
* subsequent threads that want to locate such object via FID.
|
|
*
|
|
* \param[in] sb super block for this file-system
|
|
* \param[in] open_req pointer to the original open request
|
|
*/
|
|
void ll_open_cleanup(struct super_block *sb, struct ptlrpc_request *open_req)
|
|
{
|
|
struct mdt_body *body;
|
|
struct md_op_data *op_data;
|
|
struct ptlrpc_request *close_req = NULL;
|
|
struct obd_export *exp = ll_s2sbi(sb)->ll_md_exp;
|
|
|
|
body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY);
|
|
op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
|
|
if (!op_data)
|
|
return;
|
|
|
|
op_data->op_fid1 = body->mbo_fid1;
|
|
op_data->op_handle = body->mbo_handle;
|
|
op_data->op_mod_time = get_seconds();
|
|
md_close(exp, op_data, NULL, &close_req);
|
|
ptlrpc_req_finished(close_req);
|
|
ll_finish_md_op_data(op_data);
|
|
}
|
|
|
|
int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
|
|
struct super_block *sb, struct lookup_intent *it)
|
|
{
|
|
struct ll_sb_info *sbi = NULL;
|
|
struct lustre_md md = { NULL };
|
|
int rc;
|
|
|
|
LASSERT(*inode || sb);
|
|
sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
|
|
rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
|
|
sbi->ll_md_exp, &md);
|
|
if (rc)
|
|
goto cleanup;
|
|
|
|
if (*inode) {
|
|
rc = ll_update_inode(*inode, &md);
|
|
if (rc)
|
|
goto out;
|
|
} else {
|
|
LASSERT(sb);
|
|
|
|
/*
|
|
* At this point server returns to client's same fid as client
|
|
* generated for creating. So using ->fid1 is okay here.
|
|
*/
|
|
if (!fid_is_sane(&md.body->mbo_fid1)) {
|
|
CERROR("%s: Fid is insane " DFID "\n",
|
|
ll_get_fsname(sb, NULL, 0),
|
|
PFID(&md.body->mbo_fid1));
|
|
rc = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
*inode = ll_iget(sb, cl_fid_build_ino(&md.body->mbo_fid1,
|
|
sbi->ll_flags & LL_SBI_32BIT_API),
|
|
&md);
|
|
if (IS_ERR(*inode)) {
|
|
#ifdef CONFIG_FS_POSIX_ACL
|
|
if (md.posix_acl) {
|
|
posix_acl_release(md.posix_acl);
|
|
md.posix_acl = NULL;
|
|
}
|
|
#endif
|
|
rc = -ENOMEM;
|
|
CERROR("new_inode -fatal: rc %d\n", rc);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Handling piggyback layout lock.
|
|
* Layout lock can be piggybacked by getattr and open request.
|
|
* The lsm can be applied to inode only if it comes with a layout lock
|
|
* otherwise correct layout may be overwritten, for example:
|
|
* 1. proc1: mdt returns a lsm but not granting layout
|
|
* 2. layout was changed by another client
|
|
* 3. proc2: refresh layout and layout lock granted
|
|
* 4. proc1: to apply a stale layout
|
|
*/
|
|
if (it && it->it_lock_mode != 0) {
|
|
struct lustre_handle lockh;
|
|
struct ldlm_lock *lock;
|
|
|
|
lockh.cookie = it->it_lock_handle;
|
|
lock = ldlm_handle2lock(&lockh);
|
|
LASSERT(lock);
|
|
if (ldlm_has_layout(lock)) {
|
|
struct cl_object_conf conf;
|
|
|
|
memset(&conf, 0, sizeof(conf));
|
|
conf.coc_opc = OBJECT_CONF_SET;
|
|
conf.coc_inode = *inode;
|
|
conf.coc_lock = lock;
|
|
conf.u.coc_layout = md.layout;
|
|
(void)ll_layout_conf(*inode, &conf);
|
|
}
|
|
LDLM_LOCK_PUT(lock);
|
|
}
|
|
|
|
out:
|
|
md_free_lustre_md(sbi->ll_md_exp, &md);
|
|
cleanup:
|
|
if (rc != 0 && it && it->it_op & IT_OPEN)
|
|
ll_open_cleanup(sb ? sb : (*inode)->i_sb, req);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int ll_obd_statfs(struct inode *inode, void __user *arg)
|
|
{
|
|
struct ll_sb_info *sbi = NULL;
|
|
struct obd_export *exp;
|
|
char *buf = NULL;
|
|
struct obd_ioctl_data *data = NULL;
|
|
__u32 type;
|
|
int len = 0, rc;
|
|
|
|
if (!inode) {
|
|
rc = -EINVAL;
|
|
goto out_statfs;
|
|
}
|
|
|
|
sbi = ll_i2sbi(inode);
|
|
if (!sbi) {
|
|
rc = -EINVAL;
|
|
goto out_statfs;
|
|
}
|
|
|
|
rc = obd_ioctl_getdata(&buf, &len, arg);
|
|
if (rc)
|
|
goto out_statfs;
|
|
|
|
data = (void *)buf;
|
|
if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
|
|
!data->ioc_pbuf1 || !data->ioc_pbuf2) {
|
|
rc = -EINVAL;
|
|
goto out_statfs;
|
|
}
|
|
|
|
if (data->ioc_inllen1 != sizeof(__u32) ||
|
|
data->ioc_inllen2 != sizeof(__u32) ||
|
|
data->ioc_plen1 != sizeof(struct obd_statfs) ||
|
|
data->ioc_plen2 != sizeof(struct obd_uuid)) {
|
|
rc = -EINVAL;
|
|
goto out_statfs;
|
|
}
|
|
|
|
memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
|
|
if (type & LL_STATFS_LMV) {
|
|
exp = sbi->ll_md_exp;
|
|
} else if (type & LL_STATFS_LOV) {
|
|
exp = sbi->ll_dt_exp;
|
|
} else {
|
|
rc = -ENODEV;
|
|
goto out_statfs;
|
|
}
|
|
|
|
rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
|
|
if (rc)
|
|
goto out_statfs;
|
|
out_statfs:
|
|
kvfree(buf);
|
|
return rc;
|
|
}
|
|
|
|
int ll_process_config(struct lustre_cfg *lcfg)
|
|
{
|
|
char *ptr;
|
|
void *sb;
|
|
struct lprocfs_static_vars lvars;
|
|
unsigned long x;
|
|
int rc = 0;
|
|
|
|
lprocfs_llite_init_vars(&lvars);
|
|
|
|
/* The instance name contains the sb: lustre-client-aacfe000 */
|
|
ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
|
|
if (!ptr || !*(++ptr))
|
|
return -EINVAL;
|
|
rc = kstrtoul(ptr, 16, &x);
|
|
if (rc != 0)
|
|
return -EINVAL;
|
|
sb = (void *)x;
|
|
/* This better be a real Lustre superblock! */
|
|
LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic ==
|
|
LMD_MAGIC);
|
|
|
|
/* Note we have not called client_common_fill_super yet, so
|
|
* proc fns must be able to handle that!
|
|
*/
|
|
rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
|
|
lcfg, sb);
|
|
if (rc > 0)
|
|
rc = 0;
|
|
return rc;
|
|
}
|
|
|
|
/* this function prepares md_op_data hint for passing ot down to MD stack. */
|
|
struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
|
|
struct inode *i1, struct inode *i2,
|
|
const char *name, size_t namelen,
|
|
u32 mode, __u32 opc, void *data)
|
|
{
|
|
if (!name) {
|
|
/* Do not reuse namelen for something else. */
|
|
if (namelen)
|
|
return ERR_PTR(-EINVAL);
|
|
} else {
|
|
if (namelen > ll_i2sbi(i1)->ll_namelen)
|
|
return ERR_PTR(-ENAMETOOLONG);
|
|
|
|
if (!lu_name_is_valid_2(name, namelen))
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
if (!op_data)
|
|
op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
|
|
|
|
if (!op_data)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
ll_i2gids(op_data->op_suppgids, i1, i2);
|
|
op_data->op_fid1 = *ll_inode2fid(i1);
|
|
op_data->op_default_stripe_offset = -1;
|
|
if (S_ISDIR(i1->i_mode)) {
|
|
op_data->op_mea1 = ll_i2info(i1)->lli_lsm_md;
|
|
if (opc == LUSTRE_OPC_MKDIR)
|
|
op_data->op_default_stripe_offset =
|
|
ll_i2info(i1)->lli_def_stripe_offset;
|
|
}
|
|
|
|
if (i2) {
|
|
op_data->op_fid2 = *ll_inode2fid(i2);
|
|
if (S_ISDIR(i2->i_mode))
|
|
op_data->op_mea2 = ll_i2info(i2)->lli_lsm_md;
|
|
} else {
|
|
fid_zero(&op_data->op_fid2);
|
|
}
|
|
|
|
if (ll_i2sbi(i1)->ll_flags & LL_SBI_64BIT_HASH)
|
|
op_data->op_cli_flags |= CLI_HASH64;
|
|
|
|
if (ll_need_32bit_api(ll_i2sbi(i1)))
|
|
op_data->op_cli_flags |= CLI_API32;
|
|
|
|
op_data->op_name = name;
|
|
op_data->op_namelen = namelen;
|
|
op_data->op_mode = mode;
|
|
op_data->op_mod_time = ktime_get_real_seconds();
|
|
op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
|
|
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
|
|
op_data->op_cap = cfs_curproc_cap_pack();
|
|
if ((opc == LUSTRE_OPC_CREATE) && name &&
|
|
filename_is_volatile(name, namelen, &op_data->op_mds))
|
|
op_data->op_bias |= MDS_CREATE_VOLATILE;
|
|
else
|
|
op_data->op_mds = 0;
|
|
op_data->op_data = data;
|
|
|
|
return op_data;
|
|
}
|
|
|
|
void ll_finish_md_op_data(struct md_op_data *op_data)
|
|
{
|
|
kfree(op_data);
|
|
}
|
|
|
|
int ll_show_options(struct seq_file *seq, struct dentry *dentry)
|
|
{
|
|
struct ll_sb_info *sbi;
|
|
|
|
LASSERT(seq && dentry);
|
|
sbi = ll_s2sbi(dentry->d_sb);
|
|
|
|
if (sbi->ll_flags & LL_SBI_NOLCK)
|
|
seq_puts(seq, ",nolock");
|
|
|
|
if (sbi->ll_flags & LL_SBI_FLOCK)
|
|
seq_puts(seq, ",flock");
|
|
|
|
if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
|
|
seq_puts(seq, ",localflock");
|
|
|
|
if (sbi->ll_flags & LL_SBI_USER_XATTR)
|
|
seq_puts(seq, ",user_xattr");
|
|
|
|
if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
|
|
seq_puts(seq, ",lazystatfs");
|
|
|
|
if (sbi->ll_flags & LL_SBI_USER_FID2PATH)
|
|
seq_puts(seq, ",user_fid2path");
|
|
|
|
if (sbi->ll_flags & LL_SBI_ALWAYS_PING)
|
|
seq_puts(seq, ",always_ping");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get obd name by cmd, and copy out to user space
|
|
*/
|
|
int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct ll_sb_info *sbi = ll_i2sbi(inode);
|
|
struct obd_device *obd;
|
|
|
|
if (cmd == OBD_IOC_GETDTNAME)
|
|
obd = class_exp2obd(sbi->ll_dt_exp);
|
|
else if (cmd == OBD_IOC_GETMDNAME)
|
|
obd = class_exp2obd(sbi->ll_md_exp);
|
|
else
|
|
return -EINVAL;
|
|
|
|
if (!obd)
|
|
return -ENOENT;
|
|
|
|
if (copy_to_user((void __user *)arg, obd->obd_name,
|
|
strlen(obd->obd_name) + 1))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the
|
|
* fsname will be returned in this buffer; otherwise, a static buffer will be
|
|
* used to store the fsname and returned to caller.
|
|
*/
|
|
char *ll_get_fsname(struct super_block *sb, char *buf, int buflen)
|
|
{
|
|
static char fsname_static[MTI_NAME_MAXLEN];
|
|
struct lustre_sb_info *lsi = s2lsi(sb);
|
|
char *ptr;
|
|
int len;
|
|
|
|
if (!buf) {
|
|
/* this means the caller wants to use static buffer
|
|
* and it doesn't care about race. Usually this is
|
|
* in error reporting path
|
|
*/
|
|
buf = fsname_static;
|
|
buflen = sizeof(fsname_static);
|
|
}
|
|
|
|
len = strlen(lsi->lsi_lmd->lmd_profile);
|
|
ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
|
|
if (ptr && (strcmp(ptr, "-client") == 0))
|
|
len -= 7;
|
|
|
|
if (unlikely(len >= buflen))
|
|
len = buflen - 1;
|
|
strncpy(buf, lsi->lsi_lmd->lmd_profile, len);
|
|
buf[len] = '\0';
|
|
|
|
return buf;
|
|
}
|
|
|
|
void ll_dirty_page_discard_warn(struct page *page, int ioret)
|
|
{
|
|
char *buf, *path = NULL;
|
|
struct dentry *dentry = NULL;
|
|
struct vvp_object *obj = cl_inode2vvp(page->mapping->host);
|
|
|
|
/* this can be called inside spin lock so use GFP_ATOMIC. */
|
|
buf = (char *)__get_free_page(GFP_ATOMIC);
|
|
if (buf) {
|
|
dentry = d_find_alias(page->mapping->host);
|
|
if (dentry)
|
|
path = dentry_path_raw(dentry, buf, PAGE_SIZE);
|
|
}
|
|
|
|
CDEBUG(D_WARNING,
|
|
"%s: dirty page discard: %s/fid: " DFID "/%s may get corrupted (rc %d)\n",
|
|
ll_get_fsname(page->mapping->host->i_sb, NULL, 0),
|
|
s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev,
|
|
PFID(&obj->vob_header.coh_lu.loh_fid),
|
|
(path && !IS_ERR(path)) ? path : "", ioret);
|
|
|
|
if (dentry)
|
|
dput(dentry);
|
|
|
|
if (buf)
|
|
free_page((unsigned long)buf);
|
|
}
|
|
|
|
ssize_t ll_copy_user_md(const struct lov_user_md __user *md,
|
|
struct lov_user_md **kbuf)
|
|
{
|
|
struct lov_user_md lum;
|
|
ssize_t lum_size;
|
|
|
|
if (copy_from_user(&lum, md, sizeof(lum))) {
|
|
lum_size = -EFAULT;
|
|
goto no_kbuf;
|
|
}
|
|
|
|
lum_size = ll_lov_user_md_size(&lum);
|
|
if (lum_size < 0)
|
|
goto no_kbuf;
|
|
|
|
*kbuf = kzalloc(lum_size, GFP_NOFS);
|
|
if (!*kbuf) {
|
|
lum_size = -ENOMEM;
|
|
goto no_kbuf;
|
|
}
|
|
|
|
if (copy_from_user(*kbuf, md, lum_size) != 0) {
|
|
kfree(*kbuf);
|
|
*kbuf = NULL;
|
|
lum_size = -EFAULT;
|
|
}
|
|
no_kbuf:
|
|
return lum_size;
|
|
}
|
|
|
|
/*
|
|
* Compute llite root squash state after a change of root squash
|
|
* configuration setting or add/remove of a lnet nid
|
|
*/
|
|
void ll_compute_rootsquash_state(struct ll_sb_info *sbi)
|
|
{
|
|
struct root_squash_info *squash = &sbi->ll_squash;
|
|
struct lnet_process_id id;
|
|
bool matched;
|
|
int i;
|
|
|
|
/* Update norootsquash flag */
|
|
down_write(&squash->rsi_sem);
|
|
if (list_empty(&squash->rsi_nosquash_nids)) {
|
|
sbi->ll_flags &= ~LL_SBI_NOROOTSQUASH;
|
|
} else {
|
|
/*
|
|
* Do not apply root squash as soon as one of our NIDs is
|
|
* in the nosquash_nids list
|
|
*/
|
|
matched = false;
|
|
i = 0;
|
|
|
|
while (LNetGetId(i++, &id) != -ENOENT) {
|
|
if (LNET_NETTYP(LNET_NIDNET(id.nid)) == LOLND)
|
|
continue;
|
|
if (cfs_match_nid(id.nid, &squash->rsi_nosquash_nids)) {
|
|
matched = true;
|
|
break;
|
|
}
|
|
}
|
|
if (matched)
|
|
sbi->ll_flags |= LL_SBI_NOROOTSQUASH;
|
|
else
|
|
sbi->ll_flags &= ~LL_SBI_NOROOTSQUASH;
|
|
}
|
|
up_write(&squash->rsi_sem);
|
|
}
|
|
|
|
/**
|
|
* Parse linkea content to extract information about a given hardlink
|
|
*
|
|
* \param[in] ldata - Initialized linkea data
|
|
* \param[in] linkno - Link identifier
|
|
* \param[out] parent_fid - The entry's parent FID
|
|
* \param[in] size - Entry name destination buffer
|
|
*
|
|
* \retval 0 on success
|
|
* \retval Appropriate negative error code on failure
|
|
*/
|
|
static int ll_linkea_decode(struct linkea_data *ldata, unsigned int linkno,
|
|
struct lu_fid *parent_fid, struct lu_name *ln)
|
|
{
|
|
unsigned int idx;
|
|
int rc;
|
|
|
|
rc = linkea_init_with_rec(ldata);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (linkno >= ldata->ld_leh->leh_reccount)
|
|
/* beyond last link */
|
|
return -ENODATA;
|
|
|
|
linkea_first_entry(ldata);
|
|
for (idx = 0; ldata->ld_lee; idx++) {
|
|
linkea_entry_unpack(ldata->ld_lee, &ldata->ld_reclen, ln,
|
|
parent_fid);
|
|
if (idx == linkno)
|
|
break;
|
|
|
|
linkea_next_entry(ldata);
|
|
}
|
|
|
|
if (idx < linkno)
|
|
return -ENODATA;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get parent FID and name of an identified link. Operation is performed for
|
|
* a given link number, letting the caller iterate over linkno to list one or
|
|
* all links of an entry.
|
|
*
|
|
* \param[in] file - File descriptor against which to perform the operation
|
|
* \param[in,out] arg - User-filled structure containing the linkno to operate
|
|
* on and the available size. It is eventually filled
|
|
* with the requested information or left untouched on
|
|
* error
|
|
*
|
|
* \retval - 0 on success
|
|
* \retval - Appropriate negative error code on failure
|
|
*/
|
|
int ll_getparent(struct file *file, struct getparent __user *arg)
|
|
{
|
|
struct inode *inode = file_inode(file);
|
|
struct linkea_data *ldata;
|
|
struct lu_fid parent_fid;
|
|
struct lu_buf buf = {
|
|
.lb_buf = NULL,
|
|
.lb_len = 0
|
|
};
|
|
struct lu_name ln;
|
|
u32 name_size;
|
|
u32 linkno;
|
|
int rc;
|
|
|
|
if (!capable(CFS_CAP_DAC_READ_SEARCH) &&
|
|
!(ll_i2sbi(inode)->ll_flags & LL_SBI_USER_FID2PATH))
|
|
return -EPERM;
|
|
|
|
if (get_user(name_size, &arg->gp_name_size))
|
|
return -EFAULT;
|
|
|
|
if (get_user(linkno, &arg->gp_linkno))
|
|
return -EFAULT;
|
|
|
|
if (name_size > PATH_MAX)
|
|
return -EINVAL;
|
|
|
|
ldata = kzalloc(sizeof(*ldata), GFP_NOFS);
|
|
if (!ldata)
|
|
return -ENOMEM;
|
|
|
|
rc = linkea_data_new(ldata, &buf);
|
|
if (rc < 0)
|
|
goto ldata_free;
|
|
|
|
rc = ll_xattr_list(inode, XATTR_NAME_LINK, XATTR_TRUSTED_T, buf.lb_buf,
|
|
buf.lb_len, OBD_MD_FLXATTR);
|
|
if (rc < 0)
|
|
goto lb_free;
|
|
|
|
rc = ll_linkea_decode(ldata, linkno, &parent_fid, &ln);
|
|
if (rc < 0)
|
|
goto lb_free;
|
|
|
|
if (ln.ln_namelen >= name_size) {
|
|
rc = -EOVERFLOW;
|
|
goto lb_free;
|
|
}
|
|
|
|
if (copy_to_user(&arg->gp_fid, &parent_fid, sizeof(arg->gp_fid))) {
|
|
rc = -EFAULT;
|
|
goto lb_free;
|
|
}
|
|
|
|
if (copy_to_user(&arg->gp_name, ln.ln_name, ln.ln_namelen)) {
|
|
rc = -EFAULT;
|
|
goto lb_free;
|
|
}
|
|
|
|
if (put_user('\0', arg->gp_name + ln.ln_namelen)) {
|
|
rc = -EFAULT;
|
|
goto lb_free;
|
|
}
|
|
|
|
lb_free:
|
|
lu_buf_free(&buf);
|
|
ldata_free:
|
|
kfree(ldata);
|
|
return rc;
|
|
}
|