1ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 2ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 3ccd979bdSMark Fasheh * 4ccd979bdSMark Fasheh * super.c 5ccd979bdSMark Fasheh * 6ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 7ccd979bdSMark Fasheh * 8ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 9ccd979bdSMark Fasheh * 10ccd979bdSMark Fasheh * This program is free software; you can redistribute it and/or 11ccd979bdSMark Fasheh * modify it under the terms of the GNU General Public 12ccd979bdSMark Fasheh * License as published by the Free Software Foundation; either 13ccd979bdSMark Fasheh * version 2 of the License, or (at your option) any later version. 14ccd979bdSMark Fasheh * 15ccd979bdSMark Fasheh * This program is distributed in the hope that it will be useful, 16ccd979bdSMark Fasheh * but WITHOUT ANY WARRANTY; without even the implied warranty of 17ccd979bdSMark Fasheh * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18ccd979bdSMark Fasheh * General Public License for more details. 19ccd979bdSMark Fasheh * 20ccd979bdSMark Fasheh * You should have received a copy of the GNU General Public 21ccd979bdSMark Fasheh * License along with this program; if not, write to the 22ccd979bdSMark Fasheh * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23ccd979bdSMark Fasheh * Boston, MA 021110-1307, USA. 24ccd979bdSMark Fasheh */ 25ccd979bdSMark Fasheh 26ccd979bdSMark Fasheh #include <linux/module.h> 27ccd979bdSMark Fasheh #include <linux/fs.h> 28ccd979bdSMark Fasheh #include <linux/types.h> 29ccd979bdSMark Fasheh #include <linux/slab.h> 30ccd979bdSMark Fasheh #include <linux/highmem.h> 31ccd979bdSMark Fasheh #include <linux/init.h> 32ccd979bdSMark Fasheh #include <linux/random.h> 33ccd979bdSMark Fasheh #include <linux/statfs.h> 34ccd979bdSMark Fasheh #include <linux/moduleparam.h> 35ccd979bdSMark Fasheh #include <linux/blkdev.h> 36ccd979bdSMark Fasheh #include <linux/socket.h> 37ccd979bdSMark Fasheh #include <linux/inet.h> 38ccd979bdSMark Fasheh #include <linux/parser.h> 39ccd979bdSMark Fasheh #include <linux/crc32.h> 40ccd979bdSMark Fasheh #include <linux/debugfs.h> 41d550071cSSunil Mushran #include <linux/mount.h> 426953b4c0SJoel Becker #include <linux/seq_file.h> 4319ece546SJan Kara #include <linux/quotaops.h> 44337eb00aSAlessio Igor Bogani #include <linux/smp_lock.h> 45ccd979bdSMark Fasheh 46ccd979bdSMark Fasheh #define MLOG_MASK_PREFIX ML_SUPER 47ccd979bdSMark Fasheh #include <cluster/masklog.h> 48ccd979bdSMark Fasheh 49ccd979bdSMark Fasheh #include "ocfs2.h" 50ccd979bdSMark Fasheh 51ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 52ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 53ccd979bdSMark Fasheh 54ccd979bdSMark Fasheh #include "alloc.h" 55d030cc97SJoel Becker #include "blockcheck.h" 56ccd979bdSMark Fasheh #include "dlmglue.h" 57ccd979bdSMark Fasheh #include "export.h" 58ccd979bdSMark Fasheh #include "extent_map.h" 59ccd979bdSMark Fasheh #include "heartbeat.h" 60ccd979bdSMark Fasheh #include "inode.h" 61ccd979bdSMark Fasheh #include "journal.h" 62ccd979bdSMark Fasheh #include "localalloc.h" 63ccd979bdSMark Fasheh #include "namei.h" 64ccd979bdSMark Fasheh #include "slot_map.h" 65ccd979bdSMark Fasheh #include "super.h" 66ccd979bdSMark Fasheh #include "sysfile.h" 67ccd979bdSMark Fasheh #include "uptodate.h" 68ccd979bdSMark Fasheh #include "ver.h" 69cf1d6c76STiger Yang #include "xattr.h" 709e33d69fSJan Kara #include "quota.h" 71374a263eSTao Ma #include "refcounttree.h" 72b89c5428STiger Yang #include "suballoc.h" 73ccd979bdSMark Fasheh 74ccd979bdSMark Fasheh #include "buffer_head_io.h" 75ccd979bdSMark Fasheh 76e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 779e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 789e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 79ccd979bdSMark Fasheh 80ccd979bdSMark Fasheh /* OCFS2 needs to schedule several differnt types of work which 81ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 82ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 83ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 84ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 85ccd979bdSMark Fasheh 86ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 87ccd979bdSMark Fasheh 88ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 89ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 90ccd979bdSMark Fasheh 91c0123adeSTiger Yang struct mount_options 92c0123adeSTiger Yang { 93d147b3d6SMark Fasheh unsigned long commit_interval; 94c0123adeSTiger Yang unsigned long mount_opt; 95c0123adeSTiger Yang unsigned int atime_quantum; 96c0123adeSTiger Yang signed short slot; 972fbe8d1eSSunil Mushran unsigned int localalloc_opt; 98b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 99c0123adeSTiger Yang }; 100c0123adeSTiger Yang 101ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 102c0123adeSTiger Yang struct mount_options *mopt, 103baf4661aSSunil Mushran int is_remount); 1045297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 1055297aad8SJan Kara struct mount_options *options); 106d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 107ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 108ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 109ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 110ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 111ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 112ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 113ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 114ccd979bdSMark Fasheh 115726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 116ccd979bdSMark Fasheh 117ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 118ccd979bdSMark Fasheh 119ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 120ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 121bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 122ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 123ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 124ccd979bdSMark Fasheh struct buffer_head *bh, 12573be192bSJoel Becker u32 sectsize, 12673be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 127ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 128ccd979bdSMark Fasheh struct buffer_head *bh, 12973be192bSJoel Becker int sector_size, 13073be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 131ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 132ccd979bdSMark Fasheh struct buffer_head **bh, 133ccd979bdSMark Fasheh int block, 134ccd979bdSMark Fasheh int sect_size); 135ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 136ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 13719ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 13819ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 13919ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 140ccd979bdSMark Fasheh 141ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 142ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 143ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 144ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 145ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 146ccd979bdSMark Fasheh .clear_inode = ocfs2_clear_inode, 147ccd979bdSMark Fasheh .delete_inode = ocfs2_delete_inode, 148ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 149ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 150ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 151d550071cSSunil Mushran .show_options = ocfs2_show_options, 1529e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1539e33d69fSJan Kara .quota_write = ocfs2_quota_write, 154ccd979bdSMark Fasheh }; 155ccd979bdSMark Fasheh 156ccd979bdSMark Fasheh enum { 157ccd979bdSMark Fasheh Opt_barrier, 158ccd979bdSMark Fasheh Opt_err_panic, 159ccd979bdSMark Fasheh Opt_err_ro, 160ccd979bdSMark Fasheh Opt_intr, 161ccd979bdSMark Fasheh Opt_nointr, 162ccd979bdSMark Fasheh Opt_hb_none, 163ccd979bdSMark Fasheh Opt_hb_local, 164ccd979bdSMark Fasheh Opt_data_ordered, 165ccd979bdSMark Fasheh Opt_data_writeback, 1667f1a37e3STiger Yang Opt_atime_quantum, 167baf4661aSSunil Mushran Opt_slot, 168d147b3d6SMark Fasheh Opt_commit, 1692fbe8d1eSSunil Mushran Opt_localalloc, 17053fc622bSMark Fasheh Opt_localflocks, 171b61817e1SJoel Becker Opt_stack, 172cf1d6c76STiger Yang Opt_user_xattr, 173cf1d6c76STiger Yang Opt_nouser_xattr, 17412462f1dSJoel Becker Opt_inode64, 175a68979b8STiger Yang Opt_acl, 176a68979b8STiger Yang Opt_noacl, 17719ece546SJan Kara Opt_usrquota, 17819ece546SJan Kara Opt_grpquota, 179ccd979bdSMark Fasheh Opt_err, 180ccd979bdSMark Fasheh }; 181ccd979bdSMark Fasheh 182a447c093SSteven Whitehouse static const match_table_t tokens = { 183ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 184ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 185ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 186ccd979bdSMark Fasheh {Opt_intr, "intr"}, 187ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 188ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 189ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 190ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 191ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1927f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 193baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 194d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1952fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19653fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 197b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 198cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 199cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 20012462f1dSJoel Becker {Opt_inode64, "inode64"}, 201a68979b8STiger Yang {Opt_acl, "acl"}, 202a68979b8STiger Yang {Opt_noacl, "noacl"}, 20319ece546SJan Kara {Opt_usrquota, "usrquota"}, 20419ece546SJan Kara {Opt_grpquota, "grpquota"}, 205ccd979bdSMark Fasheh {Opt_err, NULL} 206ccd979bdSMark Fasheh }; 207ccd979bdSMark Fasheh 20850397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 20950397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 21050397507SSunil Mushran { 21150397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 21250397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 213df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 214df152c24SSunil Mushran int i, out = 0; 21550397507SSunil Mushran 21650397507SSunil Mushran out += snprintf(buf + out, len - out, 21750397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 21850397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 21950397507SSunil Mushran osb->fs_generation, osb->vol_label); 22050397507SSunil Mushran 22150397507SSunil Mushran out += snprintf(buf + out, len - out, 22250397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 22350397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 22450397507SSunil Mushran 22550397507SSunil Mushran out += snprintf(buf + out, len - out, 22650397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 22750397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 22850397507SSunil Mushran 22950397507SSunil Mushran out += snprintf(buf + out, len - out, 23050397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 23150397507SSunil Mushran "ROcompat: 0x%X\n", 23250397507SSunil Mushran "Features", osb->s_feature_compat, 23350397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 23450397507SSunil Mushran 23550397507SSunil Mushran out += snprintf(buf + out, len - out, 23650397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 23750397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 23850397507SSunil Mushran 239c3d38840SSunil Mushran if (cconn) { 24050397507SSunil Mushran out += snprintf(buf + out, len - out, 241c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 242c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 24350397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 24450397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 24550397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 246c3d38840SSunil Mushran cconn->cc_version.pv_major, 247c3d38840SSunil Mushran cconn->cc_version.pv_minor); 248c3d38840SSunil Mushran } 24950397507SSunil Mushran 25050397507SSunil Mushran spin_lock(&osb->dc_task_lock); 25150397507SSunil Mushran out += snprintf(buf + out, len - out, 25250397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 25350397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 254c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 255c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 256c3d38840SSunil Mushran osb->dc_work_sequence); 25750397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 25850397507SSunil Mushran 25950397507SSunil Mushran spin_lock(&osb->osb_lock); 26050397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 26150397507SSunil Mushran "Recovery", 26250397507SSunil Mushran (osb->recovery_thread_task ? 26350397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 26450397507SSunil Mushran if (rm->rm_used == 0) 26550397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 26650397507SSunil Mushran else { 26750397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 26850397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 26950397507SSunil Mushran rm->rm_entries[i]); 27050397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 27150397507SSunil Mushran } 27250397507SSunil Mushran spin_unlock(&osb->osb_lock); 27350397507SSunil Mushran 27450397507SSunil Mushran out += snprintf(buf + out, len - out, 27550397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 276c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 277c3d38840SSunil Mushran osb->osb_commit_interval, 27850397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 27950397507SSunil Mushran 28050397507SSunil Mushran out += snprintf(buf + out, len - out, 281c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 28250397507SSunil Mushran "Journal", osb->journal->j_state, 283c3d38840SSunil Mushran osb->journal->j_trans_id, 284c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 28550397507SSunil Mushran 28650397507SSunil Mushran out += snprintf(buf + out, len - out, 28750397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 28850397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 28950397507SSunil Mushran "Stats", 29050397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 29150397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 29250397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 29350397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 29450397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 29550397507SSunil Mushran 29650397507SSunil Mushran out += snprintf(buf + out, len - out, 29750397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 29850397507SSunil Mushran "Default: %u bits\n", 29950397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 30050397507SSunil Mushran (unsigned long long)osb->la_last_gd, 30150397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 30250397507SSunil Mushran 30350397507SSunil Mushran spin_lock(&osb->osb_lock); 30450397507SSunil Mushran out += snprintf(buf + out, len - out, 305b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 306b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 30750397507SSunil Mushran osb->s_inode_steal_slot, 308b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 309b89c5428STiger Yang osb->s_meta_steal_slot, 310b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 31150397507SSunil Mushran spin_unlock(&osb->osb_lock); 31250397507SSunil Mushran 313df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 314df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 315df152c24SSunil Mushran os->os_count, os->os_seqno); 316df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 317df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 318df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 319df152c24SSunil Mushran else 320df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 321df152c24SSunil Mushran (get_seconds() - os->os_scantime.tv_sec)); 322df152c24SSunil Mushran 32350397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 32450397507SSunil Mushran "Slots", "Num", "RecoGen"); 32550397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 32650397507SSunil Mushran out += snprintf(buf + out, len - out, 32750397507SSunil Mushran "%10s %c %3d %10d\n", 32850397507SSunil Mushran " ", 32950397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 33050397507SSunil Mushran i, osb->slot_recovery_generations[i]); 33150397507SSunil Mushran } 33250397507SSunil Mushran 33350397507SSunil Mushran return out; 33450397507SSunil Mushran } 33550397507SSunil Mushran 33650397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 33750397507SSunil Mushran { 33850397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 33950397507SSunil Mushran char *buf = NULL; 34050397507SSunil Mushran 34150397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 34250397507SSunil Mushran if (!buf) 34350397507SSunil Mushran goto bail; 34450397507SSunil Mushran 34550397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 34650397507SSunil Mushran 34750397507SSunil Mushran file->private_data = buf; 34850397507SSunil Mushran 34950397507SSunil Mushran return 0; 35050397507SSunil Mushran bail: 35150397507SSunil Mushran return -ENOMEM; 35250397507SSunil Mushran } 35350397507SSunil Mushran 35450397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 35550397507SSunil Mushran { 35650397507SSunil Mushran kfree(file->private_data); 35750397507SSunil Mushran return 0; 35850397507SSunil Mushran } 35950397507SSunil Mushran 36050397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 36150397507SSunil Mushran size_t nbytes, loff_t *ppos) 36250397507SSunil Mushran { 36350397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 36450397507SSunil Mushran i_size_read(file->f_mapping->host)); 36550397507SSunil Mushran } 36650397507SSunil Mushran #else 36750397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 36850397507SSunil Mushran { 36950397507SSunil Mushran return 0; 37050397507SSunil Mushran } 37150397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 37250397507SSunil Mushran { 37350397507SSunil Mushran return 0; 37450397507SSunil Mushran } 37550397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 37650397507SSunil Mushran size_t nbytes, loff_t *ppos) 37750397507SSunil Mushran { 37850397507SSunil Mushran return 0; 37950397507SSunil Mushran } 38050397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 38150397507SSunil Mushran 382828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 38350397507SSunil Mushran .open = ocfs2_osb_debug_open, 38450397507SSunil Mushran .release = ocfs2_debug_release, 38550397507SSunil Mushran .read = ocfs2_debug_read, 38650397507SSunil Mushran .llseek = generic_file_llseek, 38750397507SSunil Mushran }; 38850397507SSunil Mushran 389ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 390ccd979bdSMark Fasheh { 391bddb8eb3SDenis Cheng int status; 392ccd979bdSMark Fasheh tid_t target; 393ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 394ccd979bdSMark Fasheh 395ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 396ccd979bdSMark Fasheh return -EROFS; 397ccd979bdSMark Fasheh 398ccd979bdSMark Fasheh if (wait) { 399ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 400ccd979bdSMark Fasheh if (status < 0) 401ccd979bdSMark Fasheh mlog_errno(status); 402ccd979bdSMark Fasheh } else { 403ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 404ccd979bdSMark Fasheh } 405ccd979bdSMark Fasheh 4062b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 4072b4e30fbSJoel Becker &target)) { 408ccd979bdSMark Fasheh if (wait) 4092b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 410ccd979bdSMark Fasheh target); 411ccd979bdSMark Fasheh } 412ccd979bdSMark Fasheh return 0; 413ccd979bdSMark Fasheh } 414ccd979bdSMark Fasheh 4151a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4161a224ad1SJan Kara { 4171a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4181a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4191a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4201a224ad1SJan Kara return 0; 4211a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4221a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4231a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4241a224ad1SJan Kara return 0; 4251a224ad1SJan Kara return 1; 4261a224ad1SJan Kara } 4271a224ad1SJan Kara 428ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 429ccd979bdSMark Fasheh { 430ccd979bdSMark Fasheh struct inode *new = NULL; 431ccd979bdSMark Fasheh int status = 0; 432ccd979bdSMark Fasheh int i; 433ccd979bdSMark Fasheh 434ccd979bdSMark Fasheh mlog_entry_void(); 435ccd979bdSMark Fasheh 4365fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 437ccd979bdSMark Fasheh if (IS_ERR(new)) { 438ccd979bdSMark Fasheh status = PTR_ERR(new); 439ccd979bdSMark Fasheh mlog_errno(status); 440ccd979bdSMark Fasheh goto bail; 441ccd979bdSMark Fasheh } 442ccd979bdSMark Fasheh osb->root_inode = new; 443ccd979bdSMark Fasheh 4445fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 445ccd979bdSMark Fasheh if (IS_ERR(new)) { 446ccd979bdSMark Fasheh status = PTR_ERR(new); 447ccd979bdSMark Fasheh mlog_errno(status); 448ccd979bdSMark Fasheh goto bail; 449ccd979bdSMark Fasheh } 450ccd979bdSMark Fasheh osb->sys_root_inode = new; 451ccd979bdSMark Fasheh 452ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 453ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4541a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4551a224ad1SJan Kara continue; 456ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 457ccd979bdSMark Fasheh if (!new) { 458ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 459ccd979bdSMark Fasheh status = -EINVAL; 460ccd979bdSMark Fasheh mlog_errno(status); 461ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 462ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 463ccd979bdSMark Fasheh "possibly corrupt fs?", i); 464ccd979bdSMark Fasheh goto bail; 465ccd979bdSMark Fasheh } 466ccd979bdSMark Fasheh // the array now has one ref, so drop this one 467ccd979bdSMark Fasheh iput(new); 468ccd979bdSMark Fasheh } 469ccd979bdSMark Fasheh 470ccd979bdSMark Fasheh bail: 471ccd979bdSMark Fasheh mlog_exit(status); 472ccd979bdSMark Fasheh return status; 473ccd979bdSMark Fasheh } 474ccd979bdSMark Fasheh 475ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 476ccd979bdSMark Fasheh { 477ccd979bdSMark Fasheh struct inode *new = NULL; 478ccd979bdSMark Fasheh int status = 0; 479ccd979bdSMark Fasheh int i; 480ccd979bdSMark Fasheh 481ccd979bdSMark Fasheh mlog_entry_void(); 482ccd979bdSMark Fasheh 483ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 484ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 485ccd979bdSMark Fasheh i++) { 4861a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4871a224ad1SJan Kara continue; 488ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 489ccd979bdSMark Fasheh if (!new) { 490ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 491ccd979bdSMark Fasheh status = -EINVAL; 492ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 493ccd979bdSMark Fasheh status, i, osb->slot_num); 494ccd979bdSMark Fasheh goto bail; 495ccd979bdSMark Fasheh } 496ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 497ccd979bdSMark Fasheh iput(new); 498ccd979bdSMark Fasheh } 499ccd979bdSMark Fasheh 500ccd979bdSMark Fasheh bail: 501ccd979bdSMark Fasheh mlog_exit(status); 502ccd979bdSMark Fasheh return status; 503ccd979bdSMark Fasheh } 504ccd979bdSMark Fasheh 505bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 506ccd979bdSMark Fasheh { 507bddb8eb3SDenis Cheng int i; 508ccd979bdSMark Fasheh struct inode *inode; 509ccd979bdSMark Fasheh 510ccd979bdSMark Fasheh mlog_entry_void(); 511ccd979bdSMark Fasheh 512ccd979bdSMark Fasheh for (i = 0; i < NUM_SYSTEM_INODES; i++) { 513ccd979bdSMark Fasheh inode = osb->system_inodes[i]; 514ccd979bdSMark Fasheh if (inode) { 515ccd979bdSMark Fasheh iput(inode); 516ccd979bdSMark Fasheh osb->system_inodes[i] = NULL; 517ccd979bdSMark Fasheh } 518ccd979bdSMark Fasheh } 519ccd979bdSMark Fasheh 520ccd979bdSMark Fasheh inode = osb->sys_root_inode; 521ccd979bdSMark Fasheh if (inode) { 522ccd979bdSMark Fasheh iput(inode); 523ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 524ccd979bdSMark Fasheh } 525ccd979bdSMark Fasheh 526ccd979bdSMark Fasheh inode = osb->root_inode; 527ccd979bdSMark Fasheh if (inode) { 528ccd979bdSMark Fasheh iput(inode); 529ccd979bdSMark Fasheh osb->root_inode = NULL; 530ccd979bdSMark Fasheh } 531ccd979bdSMark Fasheh 532bddb8eb3SDenis Cheng mlog_exit(0); 533ccd979bdSMark Fasheh } 534ccd979bdSMark Fasheh 535ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 536ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 537ccd979bdSMark Fasheh { 538ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 539ccd979bdSMark Fasheh 540e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 541ccd979bdSMark Fasheh if (!oi) 542ccd979bdSMark Fasheh return NULL; 543ccd979bdSMark Fasheh 5442b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 545ccd979bdSMark Fasheh return &oi->vfs_inode; 546ccd979bdSMark Fasheh } 547ccd979bdSMark Fasheh 548ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 549ccd979bdSMark Fasheh { 550ccd979bdSMark Fasheh kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 551ccd979bdSMark Fasheh } 552ccd979bdSMark Fasheh 5535a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5545a254031SMark Fasheh unsigned int cbits) 555ccd979bdSMark Fasheh { 5565a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5575a254031SMark Fasheh unsigned int trim = bytes; 5585a254031SMark Fasheh unsigned int bitshift = 32; 559ccd979bdSMark Fasheh 5605a254031SMark Fasheh /* 5615a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5625a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5635a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 564ccd979bdSMark Fasheh */ 565ccd979bdSMark Fasheh 566ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 56790c699a9SBartlomiej Zolnierkiewicz # if defined(CONFIG_LBDAF) 5682ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5695a254031SMark Fasheh /* 5705a254031SMark Fasheh * We might be limited by page cache size. 5715a254031SMark Fasheh */ 5725a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 5735a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 5745a254031SMark Fasheh trim = 1; 5755a254031SMark Fasheh /* 5765a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5775a254031SMark Fasheh * MAX_LFS_FILESIZE 5785a254031SMark Fasheh */ 5795a254031SMark Fasheh bitshift = 31; 5805a254031SMark Fasheh } 581ccd979bdSMark Fasheh # else 5825a254031SMark Fasheh /* 5835a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 5845a254031SMark Fasheh * that's what we expose to the VFS. 5855a254031SMark Fasheh */ 5865a254031SMark Fasheh bytes = 1 << bbits; 5875a254031SMark Fasheh trim = 1; 5885a254031SMark Fasheh bitshift = 31; 589ccd979bdSMark Fasheh # endif 590ccd979bdSMark Fasheh #endif 591ccd979bdSMark Fasheh 5925a254031SMark Fasheh /* 5935a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 5945a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 5955a254031SMark Fasheh * an extent start is at the max offset. 5965a254031SMark Fasheh */ 5975a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 598ccd979bdSMark Fasheh } 599ccd979bdSMark Fasheh 600ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 601ccd979bdSMark Fasheh { 602ccd979bdSMark Fasheh int incompat_features; 603ccd979bdSMark Fasheh int ret = 0; 604c0123adeSTiger Yang struct mount_options parsed_options; 605ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 606ccd979bdSMark Fasheh 607337eb00aSAlessio Igor Bogani lock_kernel(); 608337eb00aSAlessio Igor Bogani 6095297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6105297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 611ccd979bdSMark Fasheh ret = -EINVAL; 612ccd979bdSMark Fasheh goto out; 613ccd979bdSMark Fasheh } 614ccd979bdSMark Fasheh 615ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != 616c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 617ccd979bdSMark Fasheh ret = -EINVAL; 618ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 619ccd979bdSMark Fasheh goto out; 620ccd979bdSMark Fasheh } 621ccd979bdSMark Fasheh 622ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 623c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 624ccd979bdSMark Fasheh ret = -EINVAL; 625ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 626ccd979bdSMark Fasheh goto out; 627ccd979bdSMark Fasheh } 628ccd979bdSMark Fasheh 62912462f1dSJoel Becker /* Probably don't want this on remount; it might 63012462f1dSJoel Becker * mess with other nodes */ 63112462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 63212462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 63312462f1dSJoel Becker ret = -EINVAL; 63412462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 63512462f1dSJoel Becker goto out; 63612462f1dSJoel Becker } 63712462f1dSJoel Becker 638ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 639ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 64019ece546SJan Kara /* Disable quota accounting before remounting RO */ 64119ece546SJan Kara if (*flags & MS_RDONLY) { 64219ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 64319ece546SJan Kara if (ret < 0) 64419ece546SJan Kara goto out; 64519ece546SJan Kara } 646ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 647ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 648ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 649ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 650ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 651ccd979bdSMark Fasheh ret = -EROFS; 652ccd979bdSMark Fasheh goto unlock_osb; 653ccd979bdSMark Fasheh } 654ccd979bdSMark Fasheh 655ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 656ccd979bdSMark Fasheh mlog(0, "Going to ro mode.\n"); 657ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 658ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 659ccd979bdSMark Fasheh } else { 660ccd979bdSMark Fasheh mlog(0, "Making ro filesystem writeable.\n"); 661ccd979bdSMark Fasheh 662ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 663ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 664ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 665ccd979bdSMark Fasheh ret = -EROFS; 666ccd979bdSMark Fasheh goto unlock_osb; 667ccd979bdSMark Fasheh } 668ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 669ccd979bdSMark Fasheh if (incompat_features) { 670ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 671ccd979bdSMark Fasheh "of unsupported optional features " 672ccd979bdSMark Fasheh "(%x).\n", incompat_features); 673ccd979bdSMark Fasheh ret = -EINVAL; 674ccd979bdSMark Fasheh goto unlock_osb; 675ccd979bdSMark Fasheh } 676ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 677ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 678ccd979bdSMark Fasheh } 679ccd979bdSMark Fasheh unlock_osb: 680ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 68119ece546SJan Kara /* Enable quota accounting after remounting RW */ 68219ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 68319ece546SJan Kara if (sb_any_quota_suspended(sb)) 68419ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 68519ece546SJan Kara else 68619ece546SJan Kara ret = ocfs2_enable_quotas(osb); 68719ece546SJan Kara if (ret < 0) { 68819ece546SJan Kara /* Return back changes... */ 68919ece546SJan Kara spin_lock(&osb->osb_lock); 69019ece546SJan Kara sb->s_flags |= MS_RDONLY; 69119ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 69219ece546SJan Kara spin_unlock(&osb->osb_lock); 69319ece546SJan Kara goto out; 69419ece546SJan Kara } 69519ece546SJan Kara } 696ccd979bdSMark Fasheh } 697ccd979bdSMark Fasheh 698ccd979bdSMark Fasheh if (!ret) { 699ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 700ccd979bdSMark Fasheh * remount. */ 701c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 702c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 703c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 704d147b3d6SMark Fasheh if (parsed_options.commit_interval) 705d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 706e001e796SMark Fasheh 707e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 708e001e796SMark Fasheh ocfs2_set_journal_params(osb); 70957b09bb5SJan Kara 71057b09bb5SJan Kara sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 71157b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 71257b09bb5SJan Kara MS_POSIXACL : 0); 713ccd979bdSMark Fasheh } 714ccd979bdSMark Fasheh out: 715337eb00aSAlessio Igor Bogani unlock_kernel(); 716ccd979bdSMark Fasheh return ret; 717ccd979bdSMark Fasheh } 718ccd979bdSMark Fasheh 719ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 720ccd979bdSMark Fasheh struct buffer_head **bh, 72173be192bSJoel Becker int *sector_size, 72273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 723ccd979bdSMark Fasheh { 724bddb8eb3SDenis Cheng int status, tmpstat; 725ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 726ccd979bdSMark Fasheh struct ocfs2_dinode *di; 727ccd979bdSMark Fasheh int blksize; 728ccd979bdSMark Fasheh 729ccd979bdSMark Fasheh *bh = NULL; 730ccd979bdSMark Fasheh 731ccd979bdSMark Fasheh /* may be > 512 */ 732e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 733ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 734ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 735ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 736ccd979bdSMark Fasheh status = -EINVAL; 737ccd979bdSMark Fasheh goto bail; 738ccd979bdSMark Fasheh } 739ccd979bdSMark Fasheh 740ccd979bdSMark Fasheh /* Can this really happen? */ 741ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 742ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 743ccd979bdSMark Fasheh 744ccd979bdSMark Fasheh /* check block zero for old format */ 745ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 746ccd979bdSMark Fasheh if (status < 0) { 747ccd979bdSMark Fasheh mlog_errno(status); 748ccd979bdSMark Fasheh goto bail; 749ccd979bdSMark Fasheh } 750ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 751ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 752ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 753ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 754ccd979bdSMark Fasheh status = -EINVAL; 755ccd979bdSMark Fasheh } 756ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 757ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 758ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 759ccd979bdSMark Fasheh hdr->signature); 760ccd979bdSMark Fasheh status = -EINVAL; 761ccd979bdSMark Fasheh } 762ccd979bdSMark Fasheh brelse(*bh); 763ccd979bdSMark Fasheh *bh = NULL; 764ccd979bdSMark Fasheh if (status < 0) { 765ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 766ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 767ccd979bdSMark Fasheh goto bail; 768ccd979bdSMark Fasheh } 769ccd979bdSMark Fasheh 770ccd979bdSMark Fasheh /* 771ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 772ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 773ccd979bdSMark Fasheh * the minimum clustersize. 774ccd979bdSMark Fasheh */ 775ccd979bdSMark Fasheh status = -EINVAL; 776ccd979bdSMark Fasheh for (blksize = *sector_size; 777ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 778ccd979bdSMark Fasheh blksize <<= 1) { 779ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 780ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 781ccd979bdSMark Fasheh blksize); 782ccd979bdSMark Fasheh if (tmpstat < 0) { 783ccd979bdSMark Fasheh status = tmpstat; 784ccd979bdSMark Fasheh mlog_errno(status); 785fb5cbe9eSJoel Becker break; 786ccd979bdSMark Fasheh } 787ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 78873be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 7891c1d9793SJan Kara spin_lock_init(&stats->b_lock); 790fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 791fb5cbe9eSJoel Becker if (tmpstat < 0) { 792ccd979bdSMark Fasheh brelse(*bh); 793ccd979bdSMark Fasheh *bh = NULL; 794fb5cbe9eSJoel Becker } 795fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 796fb5cbe9eSJoel Becker status = tmpstat; 797ccd979bdSMark Fasheh break; 798ccd979bdSMark Fasheh } 799fb5cbe9eSJoel Becker } 800ccd979bdSMark Fasheh 801ccd979bdSMark Fasheh bail: 802ccd979bdSMark Fasheh return status; 803ccd979bdSMark Fasheh } 804ccd979bdSMark Fasheh 805c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 806c271c5c2SSunil Mushran { 807c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 808c271c5c2SSunil Mushran if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 809c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 810c271c5c2SSunil Mushran "mounted device.\n"); 811c271c5c2SSunil Mushran return -EINVAL; 812c271c5c2SSunil Mushran } 813c271c5c2SSunil Mushran } 814c271c5c2SSunil Mushran 815b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 816b61817e1SJoel Becker if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 817b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 818b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 819b61817e1SJoel Becker return -EINVAL; 820b61817e1SJoel Becker } 821b61817e1SJoel Becker } 822b61817e1SJoel Becker 823c271c5c2SSunil Mushran if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 824b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 825b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 826c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 827c271c5c2SSunil Mushran "a read-write clustered device.\n"); 828c271c5c2SSunil Mushran return -EINVAL; 829c271c5c2SSunil Mushran } 830c271c5c2SSunil Mushran } 831c271c5c2SSunil Mushran 832c271c5c2SSunil Mushran return 0; 833c271c5c2SSunil Mushran } 834c271c5c2SSunil Mushran 835b61817e1SJoel Becker /* 836b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 837b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 838b61817e1SJoel Becker * have passed a stack. 839b61817e1SJoel Becker */ 840b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 841b61817e1SJoel Becker struct mount_options *mopt) 842b61817e1SJoel Becker { 843b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 844b61817e1SJoel Becker mlog(ML_ERROR, 845b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 846b61817e1SJoel Becker "does not support it\n"); 847b61817e1SJoel Becker return -EINVAL; 848b61817e1SJoel Becker } 849b61817e1SJoel Becker 850b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 851b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 852b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 853b61817e1SJoel Becker mlog(ML_ERROR, 854b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 855b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 856b61817e1SJoel Becker mopt->cluster_stack, 857b61817e1SJoel Becker osb->osb_cluster_stack); 858b61817e1SJoel Becker return -EINVAL; 859b61817e1SJoel Becker } 860b61817e1SJoel Becker 861b61817e1SJoel Becker return 0; 862b61817e1SJoel Becker } 863b61817e1SJoel Becker 86419ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 86519ece546SJan Kara { 86619ece546SJan Kara int type; 86719ece546SJan Kara struct super_block *sb = osb->sb; 86819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 86919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 87019ece546SJan Kara int status = 0; 87119ece546SJan Kara 87219ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 87319ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 87419ece546SJan Kara continue; 87519ece546SJan Kara if (unsuspend) 87619ece546SJan Kara status = vfs_quota_enable( 87719ece546SJan Kara sb_dqopt(sb)->files[type], 87819ece546SJan Kara type, QFMT_OCFS2, 87919ece546SJan Kara DQUOT_SUSPENDED); 88019ece546SJan Kara else 88119ece546SJan Kara status = vfs_quota_disable(sb, type, 88219ece546SJan Kara DQUOT_SUSPENDED); 88319ece546SJan Kara if (status < 0) 88419ece546SJan Kara break; 88519ece546SJan Kara } 88619ece546SJan Kara if (status < 0) 88719ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 88819ece546SJan Kara "remount (error = %d).\n", status); 88919ece546SJan Kara return status; 89019ece546SJan Kara } 89119ece546SJan Kara 89219ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 89319ece546SJan Kara { 89419ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 89519ece546SJan Kara struct super_block *sb = osb->sb; 89619ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 89719ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 89819ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 89919ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 90019ece546SJan Kara int status; 90119ece546SJan Kara int type; 90219ece546SJan Kara 90319ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 90419ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 90519ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 90619ece546SJan Kara continue; 90719ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 90819ece546SJan Kara osb->slot_num); 90919ece546SJan Kara if (!inode[type]) { 91019ece546SJan Kara status = -ENOENT; 91119ece546SJan Kara goto out_quota_off; 91219ece546SJan Kara } 91319ece546SJan Kara status = vfs_quota_enable(inode[type], type, QFMT_OCFS2, 91419ece546SJan Kara DQUOT_USAGE_ENABLED); 91519ece546SJan Kara if (status < 0) 91619ece546SJan Kara goto out_quota_off; 91719ece546SJan Kara } 91819ece546SJan Kara 91919ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 92019ece546SJan Kara iput(inode[type]); 92119ece546SJan Kara return 0; 92219ece546SJan Kara out_quota_off: 92319ece546SJan Kara ocfs2_disable_quotas(osb); 92419ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 92519ece546SJan Kara iput(inode[type]); 92619ece546SJan Kara mlog_errno(status); 92719ece546SJan Kara return status; 92819ece546SJan Kara } 92919ece546SJan Kara 93019ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 93119ece546SJan Kara { 93219ece546SJan Kara int type; 93319ece546SJan Kara struct inode *inode; 93419ece546SJan Kara struct super_block *sb = osb->sb; 93519ece546SJan Kara 93619ece546SJan Kara /* We mostly ignore errors in this function because there's not much 93719ece546SJan Kara * we can do when we see them */ 93819ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 93919ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 94019ece546SJan Kara continue; 94119ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 94219ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 94319ece546SJan Kara * memory and so they will be automatically synced to global 94419ece546SJan Kara * quota files */ 94519ece546SJan Kara vfs_quota_disable(sb, type, DQUOT_USAGE_ENABLED | 94619ece546SJan Kara DQUOT_LIMITS_ENABLED); 94719ece546SJan Kara if (!inode) 94819ece546SJan Kara continue; 94919ece546SJan Kara iput(inode); 95019ece546SJan Kara } 95119ece546SJan Kara } 95219ece546SJan Kara 95319ece546SJan Kara /* Handle quota on quotactl */ 95419ece546SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id, 95519ece546SJan Kara char *path, int remount) 95619ece546SJan Kara { 95719ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 95819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 95919ece546SJan Kara 96019ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 96119ece546SJan Kara return -EINVAL; 96219ece546SJan Kara 96319ece546SJan Kara if (remount) 96419ece546SJan Kara return 0; /* Just ignore it has been handled in 96519ece546SJan Kara * ocfs2_remount() */ 96619ece546SJan Kara return vfs_quota_enable(sb_dqopt(sb)->files[type], type, 96719ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 96819ece546SJan Kara } 96919ece546SJan Kara 97019ece546SJan Kara /* Handle quota off quotactl */ 97119ece546SJan Kara static int ocfs2_quota_off(struct super_block *sb, int type, int remount) 97219ece546SJan Kara { 97319ece546SJan Kara if (remount) 97419ece546SJan Kara return 0; /* Ignore now and handle later in 97519ece546SJan Kara * ocfs2_remount() */ 97619ece546SJan Kara return vfs_quota_disable(sb, type, DQUOT_LIMITS_ENABLED); 97719ece546SJan Kara } 97819ece546SJan Kara 9790d54b217SAlexey Dobriyan static const struct quotactl_ops ocfs2_quotactl_ops = { 98019ece546SJan Kara .quota_on = ocfs2_quota_on, 98119ece546SJan Kara .quota_off = ocfs2_quota_off, 98219ece546SJan Kara .quota_sync = vfs_quota_sync, 98319ece546SJan Kara .get_info = vfs_get_dqinfo, 98419ece546SJan Kara .set_info = vfs_set_dqinfo, 98519ece546SJan Kara .get_dqblk = vfs_get_dqblk, 98619ece546SJan Kara .set_dqblk = vfs_set_dqblk, 98719ece546SJan Kara }; 98819ece546SJan Kara 989ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 990ccd979bdSMark Fasheh { 991ccd979bdSMark Fasheh struct dentry *root; 992ccd979bdSMark Fasheh int status, sector_size; 993c0123adeSTiger Yang struct mount_options parsed_options; 994ccd979bdSMark Fasheh struct inode *inode = NULL; 995ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 996ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 997c271c5c2SSunil Mushran char nodestr[8]; 99873be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 999ccd979bdSMark Fasheh 1000ccd979bdSMark Fasheh mlog_entry("%p, %p, %i", sb, data, silent); 1001ccd979bdSMark Fasheh 1002c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 1003c271c5c2SSunil Mushran status = -EINVAL; 1004c271c5c2SSunil Mushran goto read_super_error; 1005c271c5c2SSunil Mushran } 1006c271c5c2SSunil Mushran 1007ccd979bdSMark Fasheh /* probe for superblock */ 100873be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1009ccd979bdSMark Fasheh if (status < 0) { 1010ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1011ccd979bdSMark Fasheh goto read_super_error; 1012ccd979bdSMark Fasheh } 1013ccd979bdSMark Fasheh 101473be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1015ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1016ccd979bdSMark Fasheh if (status < 0) { 1017ccd979bdSMark Fasheh mlog_errno(status); 1018ccd979bdSMark Fasheh goto read_super_error; 1019ccd979bdSMark Fasheh } 1020ccd979bdSMark Fasheh brelse(bh); 1021ccd979bdSMark Fasheh bh = NULL; 1022a68979b8STiger Yang 10235297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10245297aad8SJan Kara status = -EINVAL; 10255297aad8SJan Kara goto read_super_error; 10265297aad8SJan Kara } 1027c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1028c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1029c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1030d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 10319c7af40bSMark Fasheh osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt); 10329c7af40bSMark Fasheh osb->local_alloc_bits = osb->local_alloc_default_bits; 1033ccd979bdSMark Fasheh 1034b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1035b61817e1SJoel Becker if (status) 1036b61817e1SJoel Becker goto read_super_error; 1037b61817e1SJoel Becker 1038ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1039ccd979bdSMark Fasheh 1040a68979b8STiger Yang sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 1041a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1042a68979b8STiger Yang 1043ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1044ccd979bdSMark Fasheh * heartbeat=none */ 1045ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1046ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1047ccd979bdSMark Fasheh status = -EACCES; 1048ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1049ccd979bdSMark Fasheh "mount was not specified.\n"); 1050ccd979bdSMark Fasheh goto read_super_error; 1051ccd979bdSMark Fasheh } 1052ccd979bdSMark Fasheh 1053ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1054ccd979bdSMark Fasheh * on a readonly device. */ 1055ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1056ccd979bdSMark Fasheh status = -EROFS; 1057ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1058ccd979bdSMark Fasheh "device.\n"); 1059ccd979bdSMark Fasheh goto read_super_error; 1060ccd979bdSMark Fasheh } 1061ccd979bdSMark Fasheh 1062ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1063ccd979bdSMark Fasheh if (status < 0) { 1064ccd979bdSMark Fasheh if (status == -EROFS) 1065ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1066ccd979bdSMark Fasheh "file system, but write access is " 1067ccd979bdSMark Fasheh "unavailable.\n"); 1068ccd979bdSMark Fasheh else 1069ccd979bdSMark Fasheh mlog_errno(status); 1070ccd979bdSMark Fasheh goto read_super_error; 1071ccd979bdSMark Fasheh } 1072ccd979bdSMark Fasheh 1073ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1074ccd979bdSMark Fasheh 1075ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 1076ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 1077ccd979bdSMark Fasheh "will be skipped.\n"); 1078ccd979bdSMark Fasheh } 1079ccd979bdSMark Fasheh 1080ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1081ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1082ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1083ccd979bdSMark Fasheh } 1084ccd979bdSMark Fasheh 1085c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1086c271c5c2SSunil Mushran if (status < 0) { 1087c271c5c2SSunil Mushran mlog_errno(status); 1088c271c5c2SSunil Mushran goto read_super_error; 1089c271c5c2SSunil Mushran } 1090c271c5c2SSunil Mushran 1091ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1092ccd979bdSMark Fasheh ocfs2_debugfs_root); 1093ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1094ccd979bdSMark Fasheh status = -EINVAL; 1095ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1096ccd979bdSMark Fasheh goto read_super_error; 1097ccd979bdSMark Fasheh } 1098ccd979bdSMark Fasheh 109950397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 110050397507SSunil Mushran osb->osb_debug_root, 110150397507SSunil Mushran osb, 110250397507SSunil Mushran &ocfs2_osb_debug_fops); 110350397507SSunil Mushran if (!osb->osb_ctxt) { 110450397507SSunil Mushran status = -EINVAL; 110550397507SSunil Mushran mlog_errno(status); 110650397507SSunil Mushran goto read_super_error; 110750397507SSunil Mushran } 110850397507SSunil Mushran 110973be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 111073be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 111173be192bSJoel Becker &osb->osb_ecc_stats, 111273be192bSJoel Becker osb->osb_debug_root); 111373be192bSJoel Becker if (status) { 111473be192bSJoel Becker mlog(ML_ERROR, 111573be192bSJoel Becker "Unable to create blockcheck statistics " 111673be192bSJoel Becker "files\n"); 111773be192bSJoel Becker goto read_super_error; 111873be192bSJoel Becker } 111973be192bSJoel Becker } 112073be192bSJoel Becker 1121ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1122ccd979bdSMark Fasheh if (osb->root_inode) 1123ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 1124ccd979bdSMark Fasheh 1125ccd979bdSMark Fasheh if (status < 0) 1126ccd979bdSMark Fasheh goto read_super_error; 1127ccd979bdSMark Fasheh 1128ccd979bdSMark Fasheh if (!inode) { 1129ccd979bdSMark Fasheh status = -EIO; 1130ccd979bdSMark Fasheh mlog_errno(status); 1131ccd979bdSMark Fasheh goto read_super_error; 1132ccd979bdSMark Fasheh } 1133ccd979bdSMark Fasheh 1134ccd979bdSMark Fasheh root = d_alloc_root(inode); 1135ccd979bdSMark Fasheh if (!root) { 1136ccd979bdSMark Fasheh status = -ENOMEM; 1137ccd979bdSMark Fasheh mlog_errno(status); 1138ccd979bdSMark Fasheh goto read_super_error; 1139ccd979bdSMark Fasheh } 1140ccd979bdSMark Fasheh 1141ccd979bdSMark Fasheh sb->s_root = root; 1142ccd979bdSMark Fasheh 1143ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1144ccd979bdSMark Fasheh 1145c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1146c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1147c271c5c2SSunil Mushran else 114819fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1149c271c5c2SSunil Mushran 1150c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1151781ee3e2SSunil Mushran "with %s data mode.\n", 1152c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1153ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1154ccd979bdSMark Fasheh "ordered"); 1155ccd979bdSMark Fasheh 1156ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1157ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1158ccd979bdSMark Fasheh 115919ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 116019ece546SJan Kara * for cluster locks recovery now. That also means that truncation 116119ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 116219ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 116319ece546SJan Kara status = ocfs2_enable_quotas(osb); 116419ece546SJan Kara if (status < 0) { 116519ece546SJan Kara /* We have to err-out specially here because 116619ece546SJan Kara * s_root is already set */ 116719ece546SJan Kara mlog_errno(status); 116819ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 116919ece546SJan Kara wake_up(&osb->osb_mount_event); 117019ece546SJan Kara mlog_exit(status); 117119ece546SJan Kara return status; 117219ece546SJan Kara } 117319ece546SJan Kara } 117419ece546SJan Kara 117519ece546SJan Kara ocfs2_complete_quota_recovery(osb); 117619ece546SJan Kara 117719ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 117819ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 117919ece546SJan Kara wake_up(&osb->osb_mount_event); 118019ece546SJan Kara 1181df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 11828b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1183df152c24SSunil Mushran 1184ccd979bdSMark Fasheh mlog_exit(status); 1185ccd979bdSMark Fasheh return status; 1186ccd979bdSMark Fasheh 1187ccd979bdSMark Fasheh read_super_error: 1188ccd979bdSMark Fasheh brelse(bh); 1189ccd979bdSMark Fasheh 1190ccd979bdSMark Fasheh if (inode) 1191ccd979bdSMark Fasheh iput(inode); 1192ccd979bdSMark Fasheh 1193ccd979bdSMark Fasheh if (osb) { 1194ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1195ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1196ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1197ccd979bdSMark Fasheh } 1198ccd979bdSMark Fasheh 1199ccd979bdSMark Fasheh mlog_exit(status); 1200ccd979bdSMark Fasheh return status; 1201ccd979bdSMark Fasheh } 1202ccd979bdSMark Fasheh 1203454e2398SDavid Howells static int ocfs2_get_sb(struct file_system_type *fs_type, 1204ccd979bdSMark Fasheh int flags, 1205ccd979bdSMark Fasheh const char *dev_name, 1206454e2398SDavid Howells void *data, 1207454e2398SDavid Howells struct vfsmount *mnt) 1208ccd979bdSMark Fasheh { 1209454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, 1210454e2398SDavid Howells mnt); 1211ccd979bdSMark Fasheh } 1212ccd979bdSMark Fasheh 1213f7b1aa69SJan Kara static void ocfs2_kill_sb(struct super_block *sb) 1214f7b1aa69SJan Kara { 1215f7b1aa69SJan Kara struct ocfs2_super *osb = OCFS2_SB(sb); 1216f7b1aa69SJan Kara 12175fd13189SJan Kara /* Failed mount? */ 12185fd13189SJan Kara if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) 12195fd13189SJan Kara goto out; 12205fd13189SJan Kara 1221f7b1aa69SJan Kara /* Prevent further queueing of inode drop events */ 1222f7b1aa69SJan Kara spin_lock(&dentry_list_lock); 1223f7b1aa69SJan Kara ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); 1224f7b1aa69SJan Kara spin_unlock(&dentry_list_lock); 1225f7b1aa69SJan Kara /* Wait for work to finish and/or remove it */ 1226f7b1aa69SJan Kara cancel_work_sync(&osb->dentry_lock_work); 12275fd13189SJan Kara out: 1228f7b1aa69SJan Kara kill_block_super(sb); 1229f7b1aa69SJan Kara } 1230f7b1aa69SJan Kara 1231ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1232ccd979bdSMark Fasheh .owner = THIS_MODULE, 1233ccd979bdSMark Fasheh .name = "ocfs2", 1234ccd979bdSMark Fasheh .get_sb = ocfs2_get_sb, /* is this called when we mount 1235ccd979bdSMark Fasheh * the fs? */ 1236f7b1aa69SJan Kara .kill_sb = ocfs2_kill_sb, 1237f7b1aa69SJan Kara 12381ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1239ccd979bdSMark Fasheh .next = NULL 1240ccd979bdSMark Fasheh }; 1241ccd979bdSMark Fasheh 12425297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12435297aad8SJan Kara struct mount_options *options) 12445297aad8SJan Kara { 12455297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12465297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12475297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12485297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12495297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12505297aad8SJan Kara return 0; 12515297aad8SJan Kara } 12525297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12535297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12545297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12555297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12565297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12575297aad8SJan Kara return 0; 12585297aad8SJan Kara } 12595297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12605297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12615297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12625297aad8SJan Kara "feature is not enabled\n"); 12635297aad8SJan Kara return 0; 12645297aad8SJan Kara } 12655297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12665297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12675297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12685297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12695297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 12705297aad8SJan Kara else 12715297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 12725297aad8SJan Kara } 12735297aad8SJan Kara return 1; 12745297aad8SJan Kara } 12755297aad8SJan Kara 1276ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1277ccd979bdSMark Fasheh char *options, 1278c0123adeSTiger Yang struct mount_options *mopt, 1279ccd979bdSMark Fasheh int is_remount) 1280ccd979bdSMark Fasheh { 1281ccd979bdSMark Fasheh int status; 1282ccd979bdSMark Fasheh char *p; 1283ccd979bdSMark Fasheh 1284ccd979bdSMark Fasheh mlog_entry("remount: %d, options: \"%s\"\n", is_remount, 1285ccd979bdSMark Fasheh options ? options : "(none)"); 1286ccd979bdSMark Fasheh 1287d147b3d6SMark Fasheh mopt->commit_interval = 0; 1288c0123adeSTiger Yang mopt->mount_opt = 0; 1289c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1290c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 12912fbe8d1eSSunil Mushran mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; 1292b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1293ccd979bdSMark Fasheh 1294ccd979bdSMark Fasheh if (!options) { 1295ccd979bdSMark Fasheh status = 1; 1296ccd979bdSMark Fasheh goto bail; 1297ccd979bdSMark Fasheh } 1298ccd979bdSMark Fasheh 1299ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1300ccd979bdSMark Fasheh int token, option; 1301ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1302ccd979bdSMark Fasheh 1303ccd979bdSMark Fasheh if (!*p) 1304ccd979bdSMark Fasheh continue; 1305ccd979bdSMark Fasheh 1306ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1307ccd979bdSMark Fasheh switch (token) { 1308ccd979bdSMark Fasheh case Opt_hb_local: 1309c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1310ccd979bdSMark Fasheh break; 1311ccd979bdSMark Fasheh case Opt_hb_none: 1312c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; 1313ccd979bdSMark Fasheh break; 1314ccd979bdSMark Fasheh case Opt_barrier: 1315ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1316ccd979bdSMark Fasheh status = 0; 1317ccd979bdSMark Fasheh goto bail; 1318ccd979bdSMark Fasheh } 1319ccd979bdSMark Fasheh if (option) 1320c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1321ccd979bdSMark Fasheh else 1322c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1323ccd979bdSMark Fasheh break; 1324ccd979bdSMark Fasheh case Opt_intr: 1325c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1326ccd979bdSMark Fasheh break; 1327ccd979bdSMark Fasheh case Opt_nointr: 1328c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1329ccd979bdSMark Fasheh break; 1330ccd979bdSMark Fasheh case Opt_err_panic: 1331c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1332ccd979bdSMark Fasheh break; 1333ccd979bdSMark Fasheh case Opt_err_ro: 1334c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1335ccd979bdSMark Fasheh break; 1336ccd979bdSMark Fasheh case Opt_data_ordered: 1337c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1338ccd979bdSMark Fasheh break; 1339ccd979bdSMark Fasheh case Opt_data_writeback: 1340c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1341ccd979bdSMark Fasheh break; 1342cf1d6c76STiger Yang case Opt_user_xattr: 1343cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1344cf1d6c76STiger Yang break; 1345cf1d6c76STiger Yang case Opt_nouser_xattr: 1346cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1347cf1d6c76STiger Yang break; 13487f1a37e3STiger Yang case Opt_atime_quantum: 13497f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13507f1a37e3STiger Yang status = 0; 13517f1a37e3STiger Yang goto bail; 13527f1a37e3STiger Yang } 13537f1a37e3STiger Yang if (option >= 0) 1354c0123adeSTiger Yang mopt->atime_quantum = option; 13557f1a37e3STiger Yang break; 1356baf4661aSSunil Mushran case Opt_slot: 1357baf4661aSSunil Mushran option = 0; 1358baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1359baf4661aSSunil Mushran status = 0; 1360baf4661aSSunil Mushran goto bail; 1361baf4661aSSunil Mushran } 1362baf4661aSSunil Mushran if (option) 1363c0123adeSTiger Yang mopt->slot = (s16)option; 1364baf4661aSSunil Mushran break; 1365d147b3d6SMark Fasheh case Opt_commit: 1366d147b3d6SMark Fasheh option = 0; 1367d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1368d147b3d6SMark Fasheh status = 0; 1369d147b3d6SMark Fasheh goto bail; 1370d147b3d6SMark Fasheh } 1371d147b3d6SMark Fasheh if (option < 0) 1372d147b3d6SMark Fasheh return 0; 1373d147b3d6SMark Fasheh if (option == 0) 13742b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1375d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1376d147b3d6SMark Fasheh break; 13772fbe8d1eSSunil Mushran case Opt_localalloc: 13782fbe8d1eSSunil Mushran option = 0; 13792fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 13802fbe8d1eSSunil Mushran status = 0; 13812fbe8d1eSSunil Mushran goto bail; 13822fbe8d1eSSunil Mushran } 13832fbe8d1eSSunil Mushran if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8)) 13842fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 13852fbe8d1eSSunil Mushran break; 138653fc622bSMark Fasheh case Opt_localflocks: 138753fc622bSMark Fasheh /* 138853fc622bSMark Fasheh * Changing this during remount could race 138953fc622bSMark Fasheh * flock() requests, or "unbalance" existing 139053fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 139153fc622bSMark Fasheh * dropped in the other). If users care enough 139253fc622bSMark Fasheh * to flip locking modes during remount, we 139353fc622bSMark Fasheh * could add a "local" flag to individual 139453fc622bSMark Fasheh * flock structures for proper tracking of 139553fc622bSMark Fasheh * state. 139653fc622bSMark Fasheh */ 139753fc622bSMark Fasheh if (!is_remount) 139853fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 139953fc622bSMark Fasheh break; 1400b61817e1SJoel Becker case Opt_stack: 1401b61817e1SJoel Becker /* Check both that the option we were passed 1402b61817e1SJoel Becker * is of the right length and that it is a proper 1403b61817e1SJoel Becker * string of the right length. 1404b61817e1SJoel Becker */ 1405b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1406b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1407b61817e1SJoel Becker (strnlen(args[0].from, 1408b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1409b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1410b61817e1SJoel Becker mlog(ML_ERROR, 1411b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1412b61817e1SJoel Becker status = 0; 1413b61817e1SJoel Becker goto bail; 1414b61817e1SJoel Becker } 1415b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1416b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1417b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 1418b61817e1SJoel Becker break; 141912462f1dSJoel Becker case Opt_inode64: 142012462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 142112462f1dSJoel Becker break; 142219ece546SJan Kara case Opt_usrquota: 142319ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 142419ece546SJan Kara break; 142519ece546SJan Kara case Opt_grpquota: 142619ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 142719ece546SJan Kara break; 1428a68979b8STiger Yang case Opt_acl: 1429a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14305297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1431a68979b8STiger Yang break; 1432a68979b8STiger Yang case Opt_noacl: 14335297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1434a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1435a68979b8STiger Yang break; 1436ccd979bdSMark Fasheh default: 1437ccd979bdSMark Fasheh mlog(ML_ERROR, 1438ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1439ccd979bdSMark Fasheh "or missing value\n", p); 1440ccd979bdSMark Fasheh status = 0; 1441ccd979bdSMark Fasheh goto bail; 1442ccd979bdSMark Fasheh } 1443ccd979bdSMark Fasheh } 1444ccd979bdSMark Fasheh 1445ccd979bdSMark Fasheh status = 1; 1446ccd979bdSMark Fasheh 1447ccd979bdSMark Fasheh bail: 1448ccd979bdSMark Fasheh mlog_exit(status); 1449ccd979bdSMark Fasheh return status; 1450ccd979bdSMark Fasheh } 1451ccd979bdSMark Fasheh 1452d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1453d550071cSSunil Mushran { 1454d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1455d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1456ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1457d550071cSSunil Mushran 1458d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 1459d550071cSSunil Mushran seq_printf(s, ",_netdev,heartbeat=local"); 1460d550071cSSunil Mushran else 1461d550071cSSunil Mushran seq_printf(s, ",heartbeat=none"); 1462d550071cSSunil Mushran 1463d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1464d550071cSSunil Mushran seq_printf(s, ",nointr"); 1465d550071cSSunil Mushran 1466d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1467d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1468d550071cSSunil Mushran else 1469d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1470d550071cSSunil Mushran 1471d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1472d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1473d550071cSSunil Mushran 1474d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1475d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1476d550071cSSunil Mushran else 1477d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1478d550071cSSunil Mushran 1479d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1480d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1481d550071cSSunil Mushran 1482d550071cSSunil Mushran if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) 1483d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1484d550071cSSunil Mushran 1485d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1486d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1487d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1488d147b3d6SMark Fasheh 1489ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 1490ebcee4b5SMark Fasheh if (local_alloc_megs != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE) 1491ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 14922fbe8d1eSSunil Mushran 149353fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 149453fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 149553fc622bSMark Fasheh 1496b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1497b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1498b61817e1SJoel Becker osb->osb_cluster_stack); 149919ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 150019ece546SJan Kara seq_printf(s, ",usrquota"); 150119ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 150219ece546SJan Kara seq_printf(s, ",grpquota"); 1503b61817e1SJoel Becker 1504b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1505b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1506b0f73cfcSSunil Mushran else 1507b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1508b0f73cfcSSunil Mushran 150912462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 151012462f1dSJoel Becker seq_printf(s, ",inode64"); 151112462f1dSJoel Becker 1512a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1513a68979b8STiger Yang seq_printf(s, ",acl"); 1514a68979b8STiger Yang else 1515a68979b8STiger Yang seq_printf(s, ",noacl"); 1516a68979b8STiger Yang 1517d550071cSSunil Mushran return 0; 1518d550071cSSunil Mushran } 1519d550071cSSunil Mushran 1520ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1521ccd979bdSMark Fasheh { 1522ccd979bdSMark Fasheh int status; 1523ccd979bdSMark Fasheh 1524ccd979bdSMark Fasheh mlog_entry_void(); 1525ccd979bdSMark Fasheh 1526ccd979bdSMark Fasheh ocfs2_print_version(); 1527ccd979bdSMark Fasheh 1528ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1529ccd979bdSMark Fasheh if (status < 0) { 1530ccd979bdSMark Fasheh mlog_errno(status); 1531ccd979bdSMark Fasheh goto leave; 1532ccd979bdSMark Fasheh } 1533ccd979bdSMark Fasheh 1534ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1535ccd979bdSMark Fasheh if (status < 0) { 1536ccd979bdSMark Fasheh mlog_errno(status); 1537ccd979bdSMark Fasheh goto leave; 1538ccd979bdSMark Fasheh } 1539ccd979bdSMark Fasheh 1540ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1541ccd979bdSMark Fasheh if (!ocfs2_wq) { 1542ccd979bdSMark Fasheh status = -ENOMEM; 1543ccd979bdSMark Fasheh goto leave; 1544ccd979bdSMark Fasheh } 1545ccd979bdSMark Fasheh 1546ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1547ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1548ccd979bdSMark Fasheh status = -EFAULT; 1549ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1550ccd979bdSMark Fasheh } 1551ccd979bdSMark Fasheh 1552171bf93cSMark Fasheh status = ocfs2_quota_setup(); 1553171bf93cSMark Fasheh if (status) 1554171bf93cSMark Fasheh goto leave; 1555171bf93cSMark Fasheh 155663e0c48aSJoel Becker ocfs2_set_locking_protocol(); 155763e0c48aSJoel Becker 15589e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1559ccd979bdSMark Fasheh leave: 1560ccd979bdSMark Fasheh if (status < 0) { 1561171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1562ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1563ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1564ccd979bdSMark Fasheh } 1565ccd979bdSMark Fasheh 1566ccd979bdSMark Fasheh mlog_exit(status); 1567ccd979bdSMark Fasheh 1568ccd979bdSMark Fasheh if (status >= 0) { 1569ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1570ccd979bdSMark Fasheh } else 1571ccd979bdSMark Fasheh return -1; 1572ccd979bdSMark Fasheh } 1573ccd979bdSMark Fasheh 1574ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1575ccd979bdSMark Fasheh { 1576ccd979bdSMark Fasheh mlog_entry_void(); 1577ccd979bdSMark Fasheh 1578171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1579171bf93cSMark Fasheh 1580ccd979bdSMark Fasheh if (ocfs2_wq) { 1581ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1582ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1583ccd979bdSMark Fasheh } 1584ccd979bdSMark Fasheh 15859e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 15869e33d69fSJan Kara 1587ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1588ccd979bdSMark Fasheh 1589ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1590ccd979bdSMark Fasheh 1591ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1592ccd979bdSMark Fasheh 1593ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1594ccd979bdSMark Fasheh 1595ccd979bdSMark Fasheh mlog_exit_void(); 1596ccd979bdSMark Fasheh } 1597ccd979bdSMark Fasheh 1598ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1599ccd979bdSMark Fasheh { 1600ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1601ccd979bdSMark Fasheh 16026cfd0148SChristoph Hellwig lock_kernel(); 16036cfd0148SChristoph Hellwig 1604ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1605ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1606ccd979bdSMark Fasheh 16076cfd0148SChristoph Hellwig unlock_kernel(); 16086cfd0148SChristoph Hellwig 1609ccd979bdSMark Fasheh mlog_exit_void(); 1610ccd979bdSMark Fasheh } 1611ccd979bdSMark Fasheh 1612726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1613ccd979bdSMark Fasheh { 1614ccd979bdSMark Fasheh struct ocfs2_super *osb; 1615ccd979bdSMark Fasheh u32 numbits, freebits; 1616ccd979bdSMark Fasheh int status; 1617ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1618ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1619ccd979bdSMark Fasheh struct inode *inode = NULL; 1620ccd979bdSMark Fasheh 1621726c3342SDavid Howells mlog_entry("(%p, %p)\n", dentry->d_sb, buf); 1622ccd979bdSMark Fasheh 1623726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1624ccd979bdSMark Fasheh 1625ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1626ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1627ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1628ccd979bdSMark Fasheh if (!inode) { 1629ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1630ccd979bdSMark Fasheh status = -EIO; 1631ccd979bdSMark Fasheh goto bail; 1632ccd979bdSMark Fasheh } 1633ccd979bdSMark Fasheh 1634e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1635ccd979bdSMark Fasheh if (status < 0) { 1636ccd979bdSMark Fasheh mlog_errno(status); 1637ccd979bdSMark Fasheh goto bail; 1638ccd979bdSMark Fasheh } 1639ccd979bdSMark Fasheh 1640ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1641ccd979bdSMark Fasheh 1642ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1643ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1644ccd979bdSMark Fasheh 1645ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1646726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1647ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1648ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1649ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1650ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1651ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1652ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1653ccd979bdSMark Fasheh buf->f_files = numbits; 1654ccd979bdSMark Fasheh buf->f_ffree = freebits; 1655837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1656837711f8SColy Li & 0xFFFFFFFFUL; 1657837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1658837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1659ccd979bdSMark Fasheh 1660ccd979bdSMark Fasheh brelse(bh); 1661ccd979bdSMark Fasheh 1662e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1663ccd979bdSMark Fasheh status = 0; 1664ccd979bdSMark Fasheh bail: 1665ccd979bdSMark Fasheh if (inode) 1666ccd979bdSMark Fasheh iput(inode); 1667ccd979bdSMark Fasheh 1668ccd979bdSMark Fasheh mlog_exit(status); 1669ccd979bdSMark Fasheh 1670ccd979bdSMark Fasheh return status; 1671ccd979bdSMark Fasheh } 1672ccd979bdSMark Fasheh 167351cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1674ccd979bdSMark Fasheh { 1675ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1676ccd979bdSMark Fasheh 1677ccd979bdSMark Fasheh oi->ip_flags = 0; 1678ccd979bdSMark Fasheh oi->ip_open_count = 0; 1679ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 168083418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1681ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1682ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1683ccd979bdSMark Fasheh 1684ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1685cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1686251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1687ccd979bdSMark Fasheh 1688ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1689ccd979bdSMark Fasheh oi->ip_clusters = 0; 1690ccd979bdSMark Fasheh 1691ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1692e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 169350008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1694ccd979bdSMark Fasheh 16958cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 16966e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1697ccd979bdSMark Fasheh 1698ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1699ccd979bdSMark Fasheh } 1700ccd979bdSMark Fasheh 1701ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1702ccd979bdSMark Fasheh { 1703ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1704ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1705fffb60f9SPaul Jackson 0, 1706fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1707fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 170820c2df83SPaul Mundt ocfs2_inode_init_once); 17099e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17109e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17119e33d69fSJan Kara 0, 17129e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17139e33d69fSJan Kara SLAB_MEM_SPREAD), 17149e33d69fSJan Kara NULL); 17159e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17169e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17179e33d69fSJan Kara 0, 17189e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 17199e33d69fSJan Kara NULL); 17209e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 17219e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 17229e33d69fSJan Kara if (ocfs2_inode_cachep) 17239e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 17249e33d69fSJan Kara if (ocfs2_dquot_cachep) 17259e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17269e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 17279e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1728ccd979bdSMark Fasheh return -ENOMEM; 17299e33d69fSJan Kara } 1730ccd979bdSMark Fasheh 1731ccd979bdSMark Fasheh return 0; 1732ccd979bdSMark Fasheh } 1733ccd979bdSMark Fasheh 1734ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1735ccd979bdSMark Fasheh { 1736ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1737ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1738ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 17399e33d69fSJan Kara 17409e33d69fSJan Kara if (ocfs2_dquot_cachep) 17419e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17429e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 17439e33d69fSJan Kara 17449e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 17459e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 17469e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1747ccd979bdSMark Fasheh } 1748ccd979bdSMark Fasheh 1749ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1750ccd979bdSMark Fasheh struct buffer_head **bh, 1751ccd979bdSMark Fasheh int block, 1752ccd979bdSMark Fasheh int sect_size) 1753ccd979bdSMark Fasheh { 1754ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1755ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1756ccd979bdSMark Fasheh return -EIO; 1757ccd979bdSMark Fasheh } 1758ccd979bdSMark Fasheh 1759ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1760ccd979bdSMark Fasheh if (!*bh) { 1761ccd979bdSMark Fasheh mlog_errno(-EIO); 1762ccd979bdSMark Fasheh return -EIO; 1763ccd979bdSMark Fasheh } 1764ccd979bdSMark Fasheh lock_buffer(*bh); 1765ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1766ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1767ccd979bdSMark Fasheh unlock_buffer(*bh); 1768ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1769ccd979bdSMark Fasheh wait_on_buffer(*bh); 177028d57d43Swengang wang if (!buffer_uptodate(*bh)) { 177128d57d43Swengang wang mlog_errno(-EIO); 177228d57d43Swengang wang brelse(*bh); 177328d57d43Swengang wang *bh = NULL; 177428d57d43Swengang wang return -EIO; 177528d57d43Swengang wang } 177628d57d43Swengang wang 1777ccd979bdSMark Fasheh return 0; 1778ccd979bdSMark Fasheh } 1779ccd979bdSMark Fasheh 1780ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1781ccd979bdSMark Fasheh { 1782ccd979bdSMark Fasheh int status = 0; 1783ccd979bdSMark Fasheh int unlock_super = 0; 1784ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1785ccd979bdSMark Fasheh 1786ccd979bdSMark Fasheh mlog_entry_void(); 1787ccd979bdSMark Fasheh 1788ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1789ccd979bdSMark Fasheh goto leave; 1790ccd979bdSMark Fasheh 1791ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1792ccd979bdSMark Fasheh if (status < 0) { 1793ccd979bdSMark Fasheh mlog_errno(status); 1794ccd979bdSMark Fasheh goto leave; 1795ccd979bdSMark Fasheh } 1796ccd979bdSMark Fasheh 1797ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1798ccd979bdSMark Fasheh if (status < 0) { 1799ccd979bdSMark Fasheh mlog_errno(status); 1800ccd979bdSMark Fasheh goto leave; 1801ccd979bdSMark Fasheh } 1802ccd979bdSMark Fasheh unlock_super = 1; 1803ccd979bdSMark Fasheh 1804ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1805ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1806ccd979bdSMark Fasheh if (status < 0) { 1807ccd979bdSMark Fasheh mlog_errno(status); 1808ccd979bdSMark Fasheh goto leave; 1809ccd979bdSMark Fasheh } 1810ccd979bdSMark Fasheh 1811ccd979bdSMark Fasheh /* load all node-local system inodes */ 1812ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1813ccd979bdSMark Fasheh if (status < 0) { 1814ccd979bdSMark Fasheh mlog_errno(status); 1815ccd979bdSMark Fasheh goto leave; 1816ccd979bdSMark Fasheh } 1817ccd979bdSMark Fasheh 1818ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1819ccd979bdSMark Fasheh if (status < 0) { 1820ccd979bdSMark Fasheh mlog_errno(status); 1821ccd979bdSMark Fasheh goto leave; 1822ccd979bdSMark Fasheh } 1823ccd979bdSMark Fasheh 1824ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 182506c59bb8STao Ma if (status < 0) 1826ccd979bdSMark Fasheh mlog_errno(status); 1827c271c5c2SSunil Mushran 1828ccd979bdSMark Fasheh leave: 1829ccd979bdSMark Fasheh if (unlock_super) 1830ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1831ccd979bdSMark Fasheh 1832ccd979bdSMark Fasheh mlog_exit(status); 1833ccd979bdSMark Fasheh return status; 1834ccd979bdSMark Fasheh } 1835ccd979bdSMark Fasheh 1836ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1837ccd979bdSMark Fasheh { 1838286eaa95SJoel Becker int tmp, hangup_needed = 0; 1839ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1840c271c5c2SSunil Mushran char nodestr[8]; 1841ccd979bdSMark Fasheh 1842ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1843ccd979bdSMark Fasheh 1844ccd979bdSMark Fasheh BUG_ON(!sb); 1845ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1846ccd979bdSMark Fasheh BUG_ON(!osb); 1847ccd979bdSMark Fasheh 184850397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 184950397507SSunil Mushran 1850f7b1aa69SJan Kara /* 1851f7b1aa69SJan Kara * Flush inode dropping work queue so that deletes are 1852f7b1aa69SJan Kara * performed while the filesystem is still working 1853f7b1aa69SJan Kara */ 1854f7b1aa69SJan Kara ocfs2_drop_all_dl_inodes(osb); 1855f7b1aa69SJan Kara 1856692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1857692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1858692684e1SSunil Mushran 185919ece546SJan Kara ocfs2_disable_quotas(osb); 186019ece546SJan Kara 1861ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1862ccd979bdSMark Fasheh 1863ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1864ccd979bdSMark Fasheh 1865553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1866553abd04SJoel Becker ocfs2_recovery_exit(osb); 1867ccd979bdSMark Fasheh 1868ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1869ccd979bdSMark Fasheh 1870ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1871ccd979bdSMark Fasheh 1872374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1873374a263eSTao Ma 18744670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 18754670c46dSJoel Becker * all the steps which depended on that to complete. */ 18764670c46dSJoel Becker if (osb->cconn) { 1877ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1878ccd979bdSMark Fasheh if (tmp < 0) { 1879ccd979bdSMark Fasheh mlog_errno(tmp); 1880ccd979bdSMark Fasheh return; 1881ccd979bdSMark Fasheh } 188219b613d4SMark Fasheh } 1883ccd979bdSMark Fasheh 1884ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1885ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1886ccd979bdSMark Fasheh 18874670c46dSJoel Becker if (osb->cconn) 1888ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1889ccd979bdSMark Fasheh 1890ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1891ccd979bdSMark Fasheh 18926953b4c0SJoel Becker /* 18936953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 18946953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 18956953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 18966953b4c0SJoel Becker * heartbeat. Otherwise, do it. 18976953b4c0SJoel Becker */ 18986953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1899286eaa95SJoel Becker hangup_needed = 1; 1900286eaa95SJoel Becker 1901286eaa95SJoel Becker if (osb->cconn) 1902286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1903286eaa95SJoel Becker 190473be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1905286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1906286eaa95SJoel Becker 1907286eaa95SJoel Becker if (hangup_needed) 19086953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1909ccd979bdSMark Fasheh 1910ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1911ccd979bdSMark Fasheh 1912c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1913c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1914c271c5c2SSunil Mushran else 191519fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1916c271c5c2SSunil Mushran 1917c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1918c271c5c2SSunil Mushran osb->dev_str, nodestr); 1919ccd979bdSMark Fasheh 1920ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1921ccd979bdSMark Fasheh kfree(osb); 1922ccd979bdSMark Fasheh sb->s_dev = 0; 1923ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1924ccd979bdSMark Fasheh } 1925ccd979bdSMark Fasheh 1926ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1927ccd979bdSMark Fasheh unsigned uuid_bytes) 1928ccd979bdSMark Fasheh { 1929ccd979bdSMark Fasheh int i, ret; 1930ccd979bdSMark Fasheh char *ptr; 1931ccd979bdSMark Fasheh 1932ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1933ccd979bdSMark Fasheh 1934cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1935ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1936ccd979bdSMark Fasheh return -ENOMEM; 1937ccd979bdSMark Fasheh 1938ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1939ccd979bdSMark Fasheh /* print with null */ 1940ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1941ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1942ccd979bdSMark Fasheh return -EINVAL; 1943ccd979bdSMark Fasheh /* then only advance past the last char */ 1944ccd979bdSMark Fasheh ptr += 2; 1945ccd979bdSMark Fasheh } 1946ccd979bdSMark Fasheh 1947ccd979bdSMark Fasheh return 0; 1948ccd979bdSMark Fasheh } 1949ccd979bdSMark Fasheh 1950ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1951ccd979bdSMark Fasheh struct buffer_head *bh, 195273be192bSJoel Becker int sector_size, 195373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 1954ccd979bdSMark Fasheh { 1955bddb8eb3SDenis Cheng int status; 19565a254031SMark Fasheh int i, cbits, bbits; 19575a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 1958ccd979bdSMark Fasheh struct inode *inode = NULL; 1959ccd979bdSMark Fasheh struct ocfs2_journal *journal; 1960ccd979bdSMark Fasheh __le32 uuid_net_key; 1961ccd979bdSMark Fasheh struct ocfs2_super *osb; 1962ccd979bdSMark Fasheh 1963ccd979bdSMark Fasheh mlog_entry_void(); 1964ccd979bdSMark Fasheh 1965cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 1966ccd979bdSMark Fasheh if (!osb) { 1967ccd979bdSMark Fasheh status = -ENOMEM; 1968ccd979bdSMark Fasheh mlog_errno(status); 1969ccd979bdSMark Fasheh goto bail; 1970ccd979bdSMark Fasheh } 1971ccd979bdSMark Fasheh 1972ccd979bdSMark Fasheh sb->s_fs_info = osb; 1973ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 1974ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 197519ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 197619ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 1977cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 1978e0dceaf0SMark Fasheh sb->s_time_gran = 1; 1979ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 1980ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 19815a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 19825a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 19835a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 1984ccd979bdSMark Fasheh 19859b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 19869b7895efSMark Fasheh 19879b7895efSMark Fasheh for (i = 0; i < 3; i++) 19889b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 19899b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 19909b7895efSMark Fasheh 1991ccd979bdSMark Fasheh osb->sb = sb; 1992ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 1993ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 1994ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 1995ccd979bdSMark Fasheh 199634d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 199734d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 199834d024f8SMark Fasheh osb->dc_work_sequence = 0; 199934d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2000ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2001ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2002ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2003c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2004b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2005ccd979bdSMark Fasheh 2006ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2007ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2008ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2009ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2010ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2011ccd979bdSMark Fasheh 201273be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 201373be192bSJoel Becker osb->osb_ecc_stats = *stats; 201473be192bSJoel Becker 2015ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2016ccd979bdSMark Fasheh 2017ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2018ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2019ccd979bdSMark Fasheh 20208b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 20218b712cd5SJeff Mahoney 2022553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2023553abd04SJoel Becker if (status) { 2024553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2025553abd04SJoel Becker mlog_errno(status); 2026553abd04SJoel Becker goto bail; 2027553abd04SJoel Becker } 2028ccd979bdSMark Fasheh 2029ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2030ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 2031ccd979bdSMark Fasheh 20327f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 20337f1a37e3STiger Yang 2034ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2035ccd979bdSMark Fasheh 20368154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 20378154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2038fdd77704STiger Yang 2039ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2040ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 20419c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2042ccd979bdSMark Fasheh 2043ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2044ccd979bdSMark Fasheh 2045ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2046ccd979bdSMark Fasheh if (!osb->vol_label) { 2047ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2048ccd979bdSMark Fasheh status = -ENOMEM; 2049ccd979bdSMark Fasheh goto bail; 2050ccd979bdSMark Fasheh } 2051ccd979bdSMark Fasheh 2052ccd979bdSMark Fasheh osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 2053ccd979bdSMark Fasheh if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 2054ccd979bdSMark Fasheh mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 2055ccd979bdSMark Fasheh osb->max_slots); 2056ccd979bdSMark Fasheh status = -EINVAL; 2057ccd979bdSMark Fasheh goto bail; 2058ccd979bdSMark Fasheh } 2059781ee3e2SSunil Mushran mlog(0, "max_slots for this device: %u\n", osb->max_slots); 2060ccd979bdSMark Fasheh 2061539d8264SSunil Mushran osb->slot_recovery_generations = 2062539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2063539d8264SSunil Mushran GFP_KERNEL); 2064539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2065539d8264SSunil Mushran status = -ENOMEM; 2066539d8264SSunil Mushran mlog_errno(status); 2067539d8264SSunil Mushran goto bail; 2068539d8264SSunil Mushran } 2069539d8264SSunil Mushran 2070b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2071b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2072b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2073b4df6ed8SMark Fasheh GFP_KERNEL); 2074b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2075b4df6ed8SMark Fasheh status = -ENOMEM; 2076b4df6ed8SMark Fasheh mlog_errno(status); 2077b4df6ed8SMark Fasheh goto bail; 2078b4df6ed8SMark Fasheh } 2079b4df6ed8SMark Fasheh 2080374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2081374a263eSTao Ma 2082ccd979bdSMark Fasheh osb->s_feature_compat = 2083ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2084ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2085ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2086ccd979bdSMark Fasheh osb->s_feature_incompat = 2087ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2088ccd979bdSMark Fasheh 2089ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2090ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2091ccd979bdSMark Fasheh "optional features (%x).\n", i); 2092ccd979bdSMark Fasheh status = -EINVAL; 2093ccd979bdSMark Fasheh goto bail; 2094ccd979bdSMark Fasheh } 2095ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2096ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2097ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2098ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2099ccd979bdSMark Fasheh status = -EINVAL; 2100ccd979bdSMark Fasheh goto bail; 2101ccd979bdSMark Fasheh } 2102ccd979bdSMark Fasheh 2103b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 2104b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2105b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2106b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2107b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2108b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2109b61817e1SJoel Becker mlog(ML_ERROR, 2110b61817e1SJoel Becker "couldn't mount because of an invalid " 2111b61817e1SJoel Becker "cluster stack label (%s) \n", 2112b61817e1SJoel Becker osb->osb_cluster_stack); 2113b61817e1SJoel Becker status = -EINVAL; 2114b61817e1SJoel Becker goto bail; 2115b61817e1SJoel Becker } 2116b61817e1SJoel Becker } else { 2117b61817e1SJoel Becker /* The empty string is identical with classic tools that 2118b61817e1SJoel Becker * don't know about s_cluster_info. */ 2119b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2120b61817e1SJoel Becker } 2121b61817e1SJoel Becker 2122ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2123ccd979bdSMark Fasheh 2124ccd979bdSMark Fasheh /* FIXME 2125ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2126ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2127ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2128ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2129ccd979bdSMark Fasheh * be my guest. 2130ccd979bdSMark Fasheh */ 2131ccd979bdSMark Fasheh /* initialize our journal structure */ 2132ccd979bdSMark Fasheh 2133cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2134ccd979bdSMark Fasheh if (!journal) { 2135ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2136ccd979bdSMark Fasheh status = -ENOMEM; 2137ccd979bdSMark Fasheh goto bail; 2138ccd979bdSMark Fasheh } 2139ccd979bdSMark Fasheh osb->journal = journal; 2140ccd979bdSMark Fasheh journal->j_osb = osb; 2141ccd979bdSMark Fasheh 2142ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2143ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2144ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2145ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2146ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2147ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2148c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2149ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2150ccd979bdSMark Fasheh 2151ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2152ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2153ea455f8aSJan Kara 2154ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2155ccd979bdSMark Fasheh osb->s_clustersize_bits = 2156ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2157ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2158ccd979bdSMark Fasheh mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); 2159ccd979bdSMark Fasheh 2160ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2161ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2162ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2163ccd979bdSMark Fasheh osb->s_clustersize); 2164ccd979bdSMark Fasheh status = -EINVAL; 2165ccd979bdSMark Fasheh goto bail; 2166ccd979bdSMark Fasheh } 2167ccd979bdSMark Fasheh 2168ccd979bdSMark Fasheh if (ocfs2_clusters_to_blocks(osb->sb, le32_to_cpu(di->i_clusters) - 1) 2169ccd979bdSMark Fasheh > (u32)~0UL) { 2170ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume might try to write to blocks beyond " 2171ccd979bdSMark Fasheh "what jbd can address in 32 bits.\n"); 2172ccd979bdSMark Fasheh status = -EINVAL; 2173ccd979bdSMark Fasheh goto bail; 2174ccd979bdSMark Fasheh } 2175ccd979bdSMark Fasheh 2176ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2177ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2178ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2179ccd979bdSMark Fasheh status = -ENOMEM; 2180ccd979bdSMark Fasheh goto bail; 2181ccd979bdSMark Fasheh } 2182ccd979bdSMark Fasheh 218378427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2184ccd979bdSMark Fasheh 2185ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2186ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2187ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2188ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2189ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2190ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2191ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2192cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 2193ccd979bdSMark Fasheh mlog(0, "vol_label: %s\n", osb->vol_label); 2194ccd979bdSMark Fasheh mlog(0, "uuid: %s\n", osb->uuid_str); 2195b0697053SMark Fasheh mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", 2196b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 2197b0697053SMark Fasheh (unsigned long long)osb->system_dir_blkno); 2198ccd979bdSMark Fasheh 2199ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2200ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2201ccd979bdSMark Fasheh status = -ENOMEM; 2202ccd979bdSMark Fasheh mlog_errno(status); 2203ccd979bdSMark Fasheh goto bail; 2204ccd979bdSMark Fasheh } 2205ccd979bdSMark Fasheh 2206ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2207ccd979bdSMark Fasheh 2208ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2209ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2210ccd979bdSMark Fasheh if (status < 0) { 2211ccd979bdSMark Fasheh mlog_errno(status); 2212ccd979bdSMark Fasheh goto bail; 2213ccd979bdSMark Fasheh } 2214ccd979bdSMark Fasheh 2215ccd979bdSMark Fasheh /* 2216ccd979bdSMark Fasheh * global bitmap 2217ccd979bdSMark Fasheh */ 2218ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2219ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2220ccd979bdSMark Fasheh if (!inode) { 2221ccd979bdSMark Fasheh status = -EINVAL; 2222ccd979bdSMark Fasheh mlog_errno(status); 2223ccd979bdSMark Fasheh goto bail; 2224ccd979bdSMark Fasheh } 2225ccd979bdSMark Fasheh 2226ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 2227ccd979bdSMark Fasheh iput(inode); 2228ccd979bdSMark Fasheh 2229e9d578a8STao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb) * 8; 2230ccd979bdSMark Fasheh 2231ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2232ccd979bdSMark Fasheh if (status < 0) { 2233ccd979bdSMark Fasheh mlog_errno(status); 2234ccd979bdSMark Fasheh goto bail; 2235ccd979bdSMark Fasheh } 2236ccd979bdSMark Fasheh 2237ccd979bdSMark Fasheh bail: 2238ccd979bdSMark Fasheh mlog_exit(status); 2239ccd979bdSMark Fasheh return status; 2240ccd979bdSMark Fasheh } 2241ccd979bdSMark Fasheh 2242ccd979bdSMark Fasheh /* 2243ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2244ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2245ccd979bdSMark Fasheh * 0 on success 2246ccd979bdSMark Fasheh */ 2247ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2248ccd979bdSMark Fasheh struct buffer_head *bh, 224973be192bSJoel Becker u32 blksz, 225073be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2251ccd979bdSMark Fasheh { 2252ccd979bdSMark Fasheh int status = -EAGAIN; 2253ccd979bdSMark Fasheh 2254ccd979bdSMark Fasheh mlog_entry_void(); 2255ccd979bdSMark Fasheh 2256ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2257ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2258d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2259d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2260d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2261d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2262d030cc97SJoel Becker bh->b_size, 226373be192bSJoel Becker &di->i_check, 226473be192bSJoel Becker stats); 2265d030cc97SJoel Becker if (status) 2266d030cc97SJoel Becker goto out; 2267d030cc97SJoel Becker } 2268ccd979bdSMark Fasheh status = -EINVAL; 2269ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2270ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2271ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2272ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2273ccd979bdSMark Fasheh blksz); 2274ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2275ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2276ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2277ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2278ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2279ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2280ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2281ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2282ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2283ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2284ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2285ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2286b0697053SMark Fasheh "found %llu, should be %llu\n", 22871ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2288b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2289ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2290ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2291ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2292ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2293ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2294ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2295ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2296ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2297ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2298ccd979bdSMark Fasheh mlog(ML_ERROR, 2299ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2300ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2301ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2302ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2303ccd979bdSMark Fasheh } else { 2304ccd979bdSMark Fasheh /* found it! */ 2305ccd979bdSMark Fasheh status = 0; 2306ccd979bdSMark Fasheh } 2307ccd979bdSMark Fasheh } 2308ccd979bdSMark Fasheh 2309d030cc97SJoel Becker out: 2310ccd979bdSMark Fasheh mlog_exit(status); 2311ccd979bdSMark Fasheh return status; 2312ccd979bdSMark Fasheh } 2313ccd979bdSMark Fasheh 2314ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2315ccd979bdSMark Fasheh { 2316bddb8eb3SDenis Cheng int status; 2317ccd979bdSMark Fasheh int dirty; 2318c271c5c2SSunil Mushran int local; 2319ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2320ccd979bdSMark Fasheh * recover 2321ccd979bdSMark Fasheh * ourselves. */ 2322ccd979bdSMark Fasheh 2323ccd979bdSMark Fasheh mlog_entry_void(); 2324ccd979bdSMark Fasheh 2325ccd979bdSMark Fasheh /* Init our journal object. */ 2326ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2327ccd979bdSMark Fasheh if (status < 0) { 2328ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2329ccd979bdSMark Fasheh goto finally; 2330ccd979bdSMark Fasheh } 2331ccd979bdSMark Fasheh 2332ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2333ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2334ccd979bdSMark Fasheh * dirty work for us :) */ 2335ccd979bdSMark Fasheh if (!dirty) { 2336ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2337ccd979bdSMark Fasheh if (status < 0) { 2338ccd979bdSMark Fasheh mlog_errno(status); 2339ccd979bdSMark Fasheh goto finally; 2340ccd979bdSMark Fasheh } 2341ccd979bdSMark Fasheh } else { 2342ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2343ccd979bdSMark Fasheh "recovering volume.\n"); 2344ccd979bdSMark Fasheh } 2345ccd979bdSMark Fasheh 2346c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2347c271c5c2SSunil Mushran 2348ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2349539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 235001af4820SWengang Wang if (status < 0) { 235101af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 235201af4820SWengang Wang goto finally; 235301af4820SWengang Wang } 2354ccd979bdSMark Fasheh 2355ccd979bdSMark Fasheh if (dirty) { 2356ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2357ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2358ccd979bdSMark Fasheh osb->slot_num, 2359ccd979bdSMark Fasheh &local_alloc); 2360ccd979bdSMark Fasheh if (status < 0) { 2361ccd979bdSMark Fasheh mlog_errno(status); 2362ccd979bdSMark Fasheh goto finally; 2363ccd979bdSMark Fasheh } 2364ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2365ccd979bdSMark Fasheh * ourselves as mounted. */ 2366ccd979bdSMark Fasheh } 2367ccd979bdSMark Fasheh 2368ccd979bdSMark Fasheh mlog(0, "Journal loaded.\n"); 2369ccd979bdSMark Fasheh 2370ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2371ccd979bdSMark Fasheh if (status < 0) { 2372ccd979bdSMark Fasheh mlog_errno(status); 2373ccd979bdSMark Fasheh goto finally; 2374ccd979bdSMark Fasheh } 2375ccd979bdSMark Fasheh 2376ccd979bdSMark Fasheh if (dirty) { 2377ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2378ccd979bdSMark Fasheh * rest of the volume. */ 2379ccd979bdSMark Fasheh osb->dirty = 1; 2380ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2381ccd979bdSMark Fasheh local_alloc = NULL; 2382ccd979bdSMark Fasheh } 2383ccd979bdSMark Fasheh 2384ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2385ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2386ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2387ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 23889140db04SSrinivas Eeda if (status < 0) { 23899140db04SSrinivas Eeda mlog_errno(status); 23909140db04SSrinivas Eeda goto finally; 23919140db04SSrinivas Eeda } 23929140db04SSrinivas Eeda 23939140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2394ccd979bdSMark Fasheh if (status < 0) 2395ccd979bdSMark Fasheh mlog_errno(status); 2396ccd979bdSMark Fasheh 2397ccd979bdSMark Fasheh finally: 2398ccd979bdSMark Fasheh if (local_alloc) 2399ccd979bdSMark Fasheh kfree(local_alloc); 2400ccd979bdSMark Fasheh 2401ccd979bdSMark Fasheh mlog_exit(status); 2402ccd979bdSMark Fasheh return status; 2403ccd979bdSMark Fasheh } 2404ccd979bdSMark Fasheh 2405ccd979bdSMark Fasheh /* 2406ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2407ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2408ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2409ccd979bdSMark Fasheh * initialized resources and fileobject. 2410ccd979bdSMark Fasheh */ 2411ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2412ccd979bdSMark Fasheh { 2413ccd979bdSMark Fasheh mlog_entry_void(); 2414ccd979bdSMark Fasheh 2415ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2416ccd979bdSMark Fasheh 24178e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2418ccd979bdSMark Fasheh 2419b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2420539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2421ccd979bdSMark Fasheh /* FIXME 2422ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2423ccd979bdSMark Fasheh * allocate osb->journal at the start of ocfs2_initalize_osb(), 2424ccd979bdSMark Fasheh * we free it here. 2425ccd979bdSMark Fasheh */ 2426ccd979bdSMark Fasheh kfree(osb->journal); 2427ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2428ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2429ccd979bdSMark Fasheh kfree(osb->uuid_str); 2430ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2431ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2432ccd979bdSMark Fasheh 2433ccd979bdSMark Fasheh mlog_exit_void(); 2434ccd979bdSMark Fasheh } 2435ccd979bdSMark Fasheh 2436ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2437ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2438ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2439ccd979bdSMark Fasheh { 2440ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2441ccd979bdSMark Fasheh 2442ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2443ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2444ccd979bdSMark Fasheh sb->s_id); 2445ccd979bdSMark Fasheh 2446ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2447ccd979bdSMark Fasheh 2448ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2449ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2450ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2451ccd979bdSMark Fasheh return; 2452ccd979bdSMark Fasheh 2453ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2454ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2455ccd979bdSMark Fasheh "system is unmounted.\n"); 2456ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2457ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2458ccd979bdSMark Fasheh } 2459ccd979bdSMark Fasheh 2460ccd979bdSMark Fasheh static char error_buf[1024]; 2461ccd979bdSMark Fasheh 2462ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2463ccd979bdSMark Fasheh const char *function, 2464ccd979bdSMark Fasheh const char *fmt, ...) 2465ccd979bdSMark Fasheh { 2466ccd979bdSMark Fasheh va_list args; 2467ccd979bdSMark Fasheh 2468ccd979bdSMark Fasheh va_start(args, fmt); 24694a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2470ccd979bdSMark Fasheh va_end(args); 2471ccd979bdSMark Fasheh 2472ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2473ccd979bdSMark Fasheh * function the error came from. */ 2474ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2475ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2476ccd979bdSMark Fasheh 2477ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2478ccd979bdSMark Fasheh } 2479ccd979bdSMark Fasheh 2480ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2481ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2482ccd979bdSMark Fasheh * etc. */ 2483ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2484ccd979bdSMark Fasheh const char *function, 2485ccd979bdSMark Fasheh const char *fmt, ...) 2486ccd979bdSMark Fasheh { 2487ccd979bdSMark Fasheh va_list args; 2488ccd979bdSMark Fasheh 2489ccd979bdSMark Fasheh va_start(args, fmt); 24904a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2491ccd979bdSMark Fasheh va_end(args); 2492ccd979bdSMark Fasheh 2493ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2494ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2495ccd979bdSMark Fasheh 2496ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2497ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2498ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2499ccd979bdSMark Fasheh * errors. 2500ccd979bdSMark Fasheh * 2501ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2502ccd979bdSMark Fasheh * that our slot needs recovery. */ 2503ccd979bdSMark Fasheh 2504ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2505ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2506ccd979bdSMark Fasheh * here. */ 2507a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2508ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2509ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2510ccd979bdSMark Fasheh } 2511ccd979bdSMark Fasheh 2512ccd979bdSMark Fasheh module_init(ocfs2_init); 2513ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2514