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" 72ccd979bdSMark Fasheh 73ccd979bdSMark Fasheh #include "buffer_head_io.h" 74ccd979bdSMark Fasheh 75e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 769e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 779e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 78ccd979bdSMark Fasheh 79ccd979bdSMark Fasheh /* OCFS2 needs to schedule several differnt types of work which 80ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 81ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 82ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 83ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 84ccd979bdSMark Fasheh 85ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 86ccd979bdSMark Fasheh 87ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 88ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 89ccd979bdSMark Fasheh 90c0123adeSTiger Yang struct mount_options 91c0123adeSTiger Yang { 92d147b3d6SMark Fasheh unsigned long commit_interval; 93c0123adeSTiger Yang unsigned long mount_opt; 94c0123adeSTiger Yang unsigned int atime_quantum; 95c0123adeSTiger Yang signed short slot; 962fbe8d1eSSunil Mushran unsigned int localalloc_opt; 97b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 98c0123adeSTiger Yang }; 99c0123adeSTiger Yang 100ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 101c0123adeSTiger Yang struct mount_options *mopt, 102baf4661aSSunil Mushran int is_remount); 103d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 104ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 105ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 106ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 107ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 108ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 109ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 110ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 111ccd979bdSMark Fasheh 112726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 113ccd979bdSMark Fasheh 114ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 115ccd979bdSMark Fasheh 116ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 117ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 118bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 119ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 120ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 121ccd979bdSMark Fasheh struct buffer_head *bh, 12273be192bSJoel Becker u32 sectsize, 12373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 124ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 125ccd979bdSMark Fasheh struct buffer_head *bh, 12673be192bSJoel Becker int sector_size, 12773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 128ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 129ccd979bdSMark Fasheh struct buffer_head **bh, 130ccd979bdSMark Fasheh int block, 131ccd979bdSMark Fasheh int sect_size); 132ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 133ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 13419ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 13519ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 13619ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 137ccd979bdSMark Fasheh 138ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 139ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 140ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 141ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 142ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 143ccd979bdSMark Fasheh .clear_inode = ocfs2_clear_inode, 144ccd979bdSMark Fasheh .delete_inode = ocfs2_delete_inode, 145ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 146ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 147ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 148d550071cSSunil Mushran .show_options = ocfs2_show_options, 1499e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1509e33d69fSJan Kara .quota_write = ocfs2_quota_write, 151ccd979bdSMark Fasheh }; 152ccd979bdSMark Fasheh 153ccd979bdSMark Fasheh enum { 154ccd979bdSMark Fasheh Opt_barrier, 155ccd979bdSMark Fasheh Opt_err_panic, 156ccd979bdSMark Fasheh Opt_err_ro, 157ccd979bdSMark Fasheh Opt_intr, 158ccd979bdSMark Fasheh Opt_nointr, 159ccd979bdSMark Fasheh Opt_hb_none, 160ccd979bdSMark Fasheh Opt_hb_local, 161ccd979bdSMark Fasheh Opt_data_ordered, 162ccd979bdSMark Fasheh Opt_data_writeback, 1637f1a37e3STiger Yang Opt_atime_quantum, 164baf4661aSSunil Mushran Opt_slot, 165d147b3d6SMark Fasheh Opt_commit, 1662fbe8d1eSSunil Mushran Opt_localalloc, 16753fc622bSMark Fasheh Opt_localflocks, 168b61817e1SJoel Becker Opt_stack, 169cf1d6c76STiger Yang Opt_user_xattr, 170cf1d6c76STiger Yang Opt_nouser_xattr, 17112462f1dSJoel Becker Opt_inode64, 172a68979b8STiger Yang Opt_acl, 173a68979b8STiger Yang Opt_noacl, 17419ece546SJan Kara Opt_usrquota, 17519ece546SJan Kara Opt_grpquota, 176ccd979bdSMark Fasheh Opt_err, 177ccd979bdSMark Fasheh }; 178ccd979bdSMark Fasheh 179a447c093SSteven Whitehouse static const match_table_t tokens = { 180ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 181ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 182ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 183ccd979bdSMark Fasheh {Opt_intr, "intr"}, 184ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 185ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 186ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 187ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 188ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1897f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 190baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 191d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1922fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19353fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 194b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 195cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 196cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 19712462f1dSJoel Becker {Opt_inode64, "inode64"}, 198a68979b8STiger Yang {Opt_acl, "acl"}, 199a68979b8STiger Yang {Opt_noacl, "noacl"}, 20019ece546SJan Kara {Opt_usrquota, "usrquota"}, 20119ece546SJan Kara {Opt_grpquota, "grpquota"}, 202ccd979bdSMark Fasheh {Opt_err, NULL} 203ccd979bdSMark Fasheh }; 204ccd979bdSMark Fasheh 20550397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 20650397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 20750397507SSunil Mushran { 20850397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 20950397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 210df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 211df152c24SSunil Mushran int i, out = 0; 21250397507SSunil Mushran 21350397507SSunil Mushran out += snprintf(buf + out, len - out, 21450397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 21550397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 21650397507SSunil Mushran osb->fs_generation, osb->vol_label); 21750397507SSunil Mushran 21850397507SSunil Mushran out += snprintf(buf + out, len - out, 21950397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 22050397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 22150397507SSunil Mushran 22250397507SSunil Mushran out += snprintf(buf + out, len - out, 22350397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 22450397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 22550397507SSunil Mushran 22650397507SSunil Mushran out += snprintf(buf + out, len - out, 22750397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 22850397507SSunil Mushran "ROcompat: 0x%X\n", 22950397507SSunil Mushran "Features", osb->s_feature_compat, 23050397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 23150397507SSunil Mushran 23250397507SSunil Mushran out += snprintf(buf + out, len - out, 23350397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 23450397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 23550397507SSunil Mushran 236c3d38840SSunil Mushran if (cconn) { 23750397507SSunil Mushran out += snprintf(buf + out, len - out, 238c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 239c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 24050397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 24150397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 24250397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 243c3d38840SSunil Mushran cconn->cc_version.pv_major, 244c3d38840SSunil Mushran cconn->cc_version.pv_minor); 245c3d38840SSunil Mushran } 24650397507SSunil Mushran 24750397507SSunil Mushran spin_lock(&osb->dc_task_lock); 24850397507SSunil Mushran out += snprintf(buf + out, len - out, 24950397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 25050397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 251c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 252c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 253c3d38840SSunil Mushran osb->dc_work_sequence); 25450397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 25550397507SSunil Mushran 25650397507SSunil Mushran spin_lock(&osb->osb_lock); 25750397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 25850397507SSunil Mushran "Recovery", 25950397507SSunil Mushran (osb->recovery_thread_task ? 26050397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 26150397507SSunil Mushran if (rm->rm_used == 0) 26250397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 26350397507SSunil Mushran else { 26450397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 26550397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 26650397507SSunil Mushran rm->rm_entries[i]); 26750397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 26850397507SSunil Mushran } 26950397507SSunil Mushran spin_unlock(&osb->osb_lock); 27050397507SSunil Mushran 27150397507SSunil Mushran out += snprintf(buf + out, len - out, 27250397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 273c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 274c3d38840SSunil Mushran osb->osb_commit_interval, 27550397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 27650397507SSunil Mushran 27750397507SSunil Mushran out += snprintf(buf + out, len - out, 278c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 27950397507SSunil Mushran "Journal", osb->journal->j_state, 280c3d38840SSunil Mushran osb->journal->j_trans_id, 281c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 28250397507SSunil Mushran 28350397507SSunil Mushran out += snprintf(buf + out, len - out, 28450397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 28550397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 28650397507SSunil Mushran "Stats", 28750397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 28850397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 28950397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 29050397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 29150397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 29250397507SSunil Mushran 29350397507SSunil Mushran out += snprintf(buf + out, len - out, 29450397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 29550397507SSunil Mushran "Default: %u bits\n", 29650397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 29750397507SSunil Mushran (unsigned long long)osb->la_last_gd, 29850397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 29950397507SSunil Mushran 30050397507SSunil Mushran spin_lock(&osb->osb_lock); 30150397507SSunil Mushran out += snprintf(buf + out, len - out, 30250397507SSunil Mushran "%10s => Slot: %d NumStolen: %d\n", "Steal", 30350397507SSunil Mushran osb->s_inode_steal_slot, 30450397507SSunil Mushran atomic_read(&osb->s_num_inodes_stolen)); 30550397507SSunil Mushran spin_unlock(&osb->osb_lock); 30650397507SSunil Mushran 307df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 308df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 309df152c24SSunil Mushran os->os_count, os->os_seqno); 310df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 311df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 312df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 313df152c24SSunil Mushran else 314df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 315df152c24SSunil Mushran (get_seconds() - os->os_scantime.tv_sec)); 316df152c24SSunil Mushran 31750397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 31850397507SSunil Mushran "Slots", "Num", "RecoGen"); 31950397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 32050397507SSunil Mushran out += snprintf(buf + out, len - out, 32150397507SSunil Mushran "%10s %c %3d %10d\n", 32250397507SSunil Mushran " ", 32350397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 32450397507SSunil Mushran i, osb->slot_recovery_generations[i]); 32550397507SSunil Mushran } 32650397507SSunil Mushran 32750397507SSunil Mushran return out; 32850397507SSunil Mushran } 32950397507SSunil Mushran 33050397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 33150397507SSunil Mushran { 33250397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 33350397507SSunil Mushran char *buf = NULL; 33450397507SSunil Mushran 33550397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 33650397507SSunil Mushran if (!buf) 33750397507SSunil Mushran goto bail; 33850397507SSunil Mushran 33950397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 34050397507SSunil Mushran 34150397507SSunil Mushran file->private_data = buf; 34250397507SSunil Mushran 34350397507SSunil Mushran return 0; 34450397507SSunil Mushran bail: 34550397507SSunil Mushran return -ENOMEM; 34650397507SSunil Mushran } 34750397507SSunil Mushran 34850397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 34950397507SSunil Mushran { 35050397507SSunil Mushran kfree(file->private_data); 35150397507SSunil Mushran return 0; 35250397507SSunil Mushran } 35350397507SSunil Mushran 35450397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 35550397507SSunil Mushran size_t nbytes, loff_t *ppos) 35650397507SSunil Mushran { 35750397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 35850397507SSunil Mushran i_size_read(file->f_mapping->host)); 35950397507SSunil Mushran } 36050397507SSunil Mushran #else 36150397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 36250397507SSunil Mushran { 36350397507SSunil Mushran return 0; 36450397507SSunil Mushran } 36550397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36650397507SSunil Mushran { 36750397507SSunil Mushran return 0; 36850397507SSunil Mushran } 36950397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 37050397507SSunil Mushran size_t nbytes, loff_t *ppos) 37150397507SSunil Mushran { 37250397507SSunil Mushran return 0; 37350397507SSunil Mushran } 37450397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 37550397507SSunil Mushran 376828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 37750397507SSunil Mushran .open = ocfs2_osb_debug_open, 37850397507SSunil Mushran .release = ocfs2_debug_release, 37950397507SSunil Mushran .read = ocfs2_debug_read, 38050397507SSunil Mushran .llseek = generic_file_llseek, 38150397507SSunil Mushran }; 38250397507SSunil Mushran 383ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 384ccd979bdSMark Fasheh { 385bddb8eb3SDenis Cheng int status; 386ccd979bdSMark Fasheh tid_t target; 387ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 388ccd979bdSMark Fasheh 389ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 390ccd979bdSMark Fasheh return -EROFS; 391ccd979bdSMark Fasheh 392ccd979bdSMark Fasheh if (wait) { 393ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 394ccd979bdSMark Fasheh if (status < 0) 395ccd979bdSMark Fasheh mlog_errno(status); 396ccd979bdSMark Fasheh } else { 397ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 398ccd979bdSMark Fasheh } 399ccd979bdSMark Fasheh 4002b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 4012b4e30fbSJoel Becker &target)) { 402ccd979bdSMark Fasheh if (wait) 4032b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 404ccd979bdSMark Fasheh target); 405ccd979bdSMark Fasheh } 406ccd979bdSMark Fasheh return 0; 407ccd979bdSMark Fasheh } 408ccd979bdSMark Fasheh 4091a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4101a224ad1SJan Kara { 4111a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4121a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4131a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4141a224ad1SJan Kara return 0; 4151a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4161a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4171a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4181a224ad1SJan Kara return 0; 4191a224ad1SJan Kara return 1; 4201a224ad1SJan Kara } 4211a224ad1SJan Kara 422ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 423ccd979bdSMark Fasheh { 424ccd979bdSMark Fasheh struct inode *new = NULL; 425ccd979bdSMark Fasheh int status = 0; 426ccd979bdSMark Fasheh int i; 427ccd979bdSMark Fasheh 428ccd979bdSMark Fasheh mlog_entry_void(); 429ccd979bdSMark Fasheh 4305fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 431ccd979bdSMark Fasheh if (IS_ERR(new)) { 432ccd979bdSMark Fasheh status = PTR_ERR(new); 433ccd979bdSMark Fasheh mlog_errno(status); 434ccd979bdSMark Fasheh goto bail; 435ccd979bdSMark Fasheh } 436ccd979bdSMark Fasheh osb->root_inode = new; 437ccd979bdSMark Fasheh 4385fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 439ccd979bdSMark Fasheh if (IS_ERR(new)) { 440ccd979bdSMark Fasheh status = PTR_ERR(new); 441ccd979bdSMark Fasheh mlog_errno(status); 442ccd979bdSMark Fasheh goto bail; 443ccd979bdSMark Fasheh } 444ccd979bdSMark Fasheh osb->sys_root_inode = new; 445ccd979bdSMark Fasheh 446ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 447ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4481a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4491a224ad1SJan Kara continue; 450ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 451ccd979bdSMark Fasheh if (!new) { 452ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 453ccd979bdSMark Fasheh status = -EINVAL; 454ccd979bdSMark Fasheh mlog_errno(status); 455ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 456ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 457ccd979bdSMark Fasheh "possibly corrupt fs?", i); 458ccd979bdSMark Fasheh goto bail; 459ccd979bdSMark Fasheh } 460ccd979bdSMark Fasheh // the array now has one ref, so drop this one 461ccd979bdSMark Fasheh iput(new); 462ccd979bdSMark Fasheh } 463ccd979bdSMark Fasheh 464ccd979bdSMark Fasheh bail: 465ccd979bdSMark Fasheh mlog_exit(status); 466ccd979bdSMark Fasheh return status; 467ccd979bdSMark Fasheh } 468ccd979bdSMark Fasheh 469ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 470ccd979bdSMark Fasheh { 471ccd979bdSMark Fasheh struct inode *new = NULL; 472ccd979bdSMark Fasheh int status = 0; 473ccd979bdSMark Fasheh int i; 474ccd979bdSMark Fasheh 475ccd979bdSMark Fasheh mlog_entry_void(); 476ccd979bdSMark Fasheh 477ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 478ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 479ccd979bdSMark Fasheh i++) { 4801a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4811a224ad1SJan Kara continue; 482ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 483ccd979bdSMark Fasheh if (!new) { 484ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 485ccd979bdSMark Fasheh status = -EINVAL; 486ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 487ccd979bdSMark Fasheh status, i, osb->slot_num); 488ccd979bdSMark Fasheh goto bail; 489ccd979bdSMark Fasheh } 490ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 491ccd979bdSMark Fasheh iput(new); 492ccd979bdSMark Fasheh } 493ccd979bdSMark Fasheh 494ccd979bdSMark Fasheh bail: 495ccd979bdSMark Fasheh mlog_exit(status); 496ccd979bdSMark Fasheh return status; 497ccd979bdSMark Fasheh } 498ccd979bdSMark Fasheh 499bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 500ccd979bdSMark Fasheh { 501bddb8eb3SDenis Cheng int i; 502ccd979bdSMark Fasheh struct inode *inode; 503ccd979bdSMark Fasheh 504ccd979bdSMark Fasheh mlog_entry_void(); 505ccd979bdSMark Fasheh 506ccd979bdSMark Fasheh for (i = 0; i < NUM_SYSTEM_INODES; i++) { 507ccd979bdSMark Fasheh inode = osb->system_inodes[i]; 508ccd979bdSMark Fasheh if (inode) { 509ccd979bdSMark Fasheh iput(inode); 510ccd979bdSMark Fasheh osb->system_inodes[i] = NULL; 511ccd979bdSMark Fasheh } 512ccd979bdSMark Fasheh } 513ccd979bdSMark Fasheh 514ccd979bdSMark Fasheh inode = osb->sys_root_inode; 515ccd979bdSMark Fasheh if (inode) { 516ccd979bdSMark Fasheh iput(inode); 517ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 518ccd979bdSMark Fasheh } 519ccd979bdSMark Fasheh 520ccd979bdSMark Fasheh inode = osb->root_inode; 521ccd979bdSMark Fasheh if (inode) { 522ccd979bdSMark Fasheh iput(inode); 523ccd979bdSMark Fasheh osb->root_inode = NULL; 524ccd979bdSMark Fasheh } 525ccd979bdSMark Fasheh 526bddb8eb3SDenis Cheng mlog_exit(0); 527ccd979bdSMark Fasheh } 528ccd979bdSMark Fasheh 529ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 530ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 531ccd979bdSMark Fasheh { 532ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 533ccd979bdSMark Fasheh 534e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 535ccd979bdSMark Fasheh if (!oi) 536ccd979bdSMark Fasheh return NULL; 537ccd979bdSMark Fasheh 5382b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 539ccd979bdSMark Fasheh return &oi->vfs_inode; 540ccd979bdSMark Fasheh } 541ccd979bdSMark Fasheh 542ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 543ccd979bdSMark Fasheh { 544ccd979bdSMark Fasheh kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 545ccd979bdSMark Fasheh } 546ccd979bdSMark Fasheh 5475a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5485a254031SMark Fasheh unsigned int cbits) 549ccd979bdSMark Fasheh { 5505a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5515a254031SMark Fasheh unsigned int trim = bytes; 5525a254031SMark Fasheh unsigned int bitshift = 32; 553ccd979bdSMark Fasheh 5545a254031SMark Fasheh /* 5555a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5565a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5575a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 558ccd979bdSMark Fasheh */ 559ccd979bdSMark Fasheh 560ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 56190c699a9SBartlomiej Zolnierkiewicz # if defined(CONFIG_LBDAF) 5622ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5635a254031SMark Fasheh /* 5645a254031SMark Fasheh * We might be limited by page cache size. 5655a254031SMark Fasheh */ 5665a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 5675a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 5685a254031SMark Fasheh trim = 1; 5695a254031SMark Fasheh /* 5705a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5715a254031SMark Fasheh * MAX_LFS_FILESIZE 5725a254031SMark Fasheh */ 5735a254031SMark Fasheh bitshift = 31; 5745a254031SMark Fasheh } 575ccd979bdSMark Fasheh # else 5765a254031SMark Fasheh /* 5775a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 5785a254031SMark Fasheh * that's what we expose to the VFS. 5795a254031SMark Fasheh */ 5805a254031SMark Fasheh bytes = 1 << bbits; 5815a254031SMark Fasheh trim = 1; 5825a254031SMark Fasheh bitshift = 31; 583ccd979bdSMark Fasheh # endif 584ccd979bdSMark Fasheh #endif 585ccd979bdSMark Fasheh 5865a254031SMark Fasheh /* 5875a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 5885a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 5895a254031SMark Fasheh * an extent start is at the max offset. 5905a254031SMark Fasheh */ 5915a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 592ccd979bdSMark Fasheh } 593ccd979bdSMark Fasheh 594ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 595ccd979bdSMark Fasheh { 596ccd979bdSMark Fasheh int incompat_features; 597ccd979bdSMark Fasheh int ret = 0; 598c0123adeSTiger Yang struct mount_options parsed_options; 599ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 600ccd979bdSMark Fasheh 601337eb00aSAlessio Igor Bogani lock_kernel(); 602337eb00aSAlessio Igor Bogani 603c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 1)) { 604ccd979bdSMark Fasheh ret = -EINVAL; 605ccd979bdSMark Fasheh goto out; 606ccd979bdSMark Fasheh } 607ccd979bdSMark Fasheh 608ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != 609c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 610ccd979bdSMark Fasheh ret = -EINVAL; 611ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 612ccd979bdSMark Fasheh goto out; 613ccd979bdSMark Fasheh } 614ccd979bdSMark Fasheh 615ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 616c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 617ccd979bdSMark Fasheh ret = -EINVAL; 618ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 619ccd979bdSMark Fasheh goto out; 620ccd979bdSMark Fasheh } 621ccd979bdSMark Fasheh 62212462f1dSJoel Becker /* Probably don't want this on remount; it might 62312462f1dSJoel Becker * mess with other nodes */ 62412462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 62512462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 62612462f1dSJoel Becker ret = -EINVAL; 62712462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 62812462f1dSJoel Becker goto out; 62912462f1dSJoel Becker } 63012462f1dSJoel Becker 631ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 632ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 63319ece546SJan Kara /* Disable quota accounting before remounting RO */ 63419ece546SJan Kara if (*flags & MS_RDONLY) { 63519ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 63619ece546SJan Kara if (ret < 0) 63719ece546SJan Kara goto out; 63819ece546SJan Kara } 639ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 640ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 641ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 642ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 643ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 644ccd979bdSMark Fasheh ret = -EROFS; 645ccd979bdSMark Fasheh goto unlock_osb; 646ccd979bdSMark Fasheh } 647ccd979bdSMark Fasheh 648ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 649ccd979bdSMark Fasheh mlog(0, "Going to ro mode.\n"); 650ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 651ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 652ccd979bdSMark Fasheh } else { 653ccd979bdSMark Fasheh mlog(0, "Making ro filesystem writeable.\n"); 654ccd979bdSMark Fasheh 655ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 656ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 657ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 658ccd979bdSMark Fasheh ret = -EROFS; 659ccd979bdSMark Fasheh goto unlock_osb; 660ccd979bdSMark Fasheh } 661ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 662ccd979bdSMark Fasheh if (incompat_features) { 663ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 664ccd979bdSMark Fasheh "of unsupported optional features " 665ccd979bdSMark Fasheh "(%x).\n", incompat_features); 666ccd979bdSMark Fasheh ret = -EINVAL; 667ccd979bdSMark Fasheh goto unlock_osb; 668ccd979bdSMark Fasheh } 669ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 670ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 671ccd979bdSMark Fasheh } 672ccd979bdSMark Fasheh unlock_osb: 673ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 67419ece546SJan Kara /* Enable quota accounting after remounting RW */ 67519ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 67619ece546SJan Kara if (sb_any_quota_suspended(sb)) 67719ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 67819ece546SJan Kara else 67919ece546SJan Kara ret = ocfs2_enable_quotas(osb); 68019ece546SJan Kara if (ret < 0) { 68119ece546SJan Kara /* Return back changes... */ 68219ece546SJan Kara spin_lock(&osb->osb_lock); 68319ece546SJan Kara sb->s_flags |= MS_RDONLY; 68419ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 68519ece546SJan Kara spin_unlock(&osb->osb_lock); 68619ece546SJan Kara goto out; 68719ece546SJan Kara } 68819ece546SJan Kara } 689ccd979bdSMark Fasheh } 690ccd979bdSMark Fasheh 691ccd979bdSMark Fasheh if (!ret) { 692ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 693ccd979bdSMark Fasheh * remount. */ 694a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 695a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 696c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 697c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 698c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 699d147b3d6SMark Fasheh if (parsed_options.commit_interval) 700d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 701e001e796SMark Fasheh 702e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 703e001e796SMark Fasheh ocfs2_set_journal_params(osb); 704ccd979bdSMark Fasheh } 705ccd979bdSMark Fasheh out: 706337eb00aSAlessio Igor Bogani unlock_kernel(); 707ccd979bdSMark Fasheh return ret; 708ccd979bdSMark Fasheh } 709ccd979bdSMark Fasheh 710ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 711ccd979bdSMark Fasheh struct buffer_head **bh, 71273be192bSJoel Becker int *sector_size, 71373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 714ccd979bdSMark Fasheh { 715bddb8eb3SDenis Cheng int status, tmpstat; 716ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 717ccd979bdSMark Fasheh struct ocfs2_dinode *di; 718ccd979bdSMark Fasheh int blksize; 719ccd979bdSMark Fasheh 720ccd979bdSMark Fasheh *bh = NULL; 721ccd979bdSMark Fasheh 722ccd979bdSMark Fasheh /* may be > 512 */ 723e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 724ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 725ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 726ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 727ccd979bdSMark Fasheh status = -EINVAL; 728ccd979bdSMark Fasheh goto bail; 729ccd979bdSMark Fasheh } 730ccd979bdSMark Fasheh 731ccd979bdSMark Fasheh /* Can this really happen? */ 732ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 733ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 734ccd979bdSMark Fasheh 735ccd979bdSMark Fasheh /* check block zero for old format */ 736ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 737ccd979bdSMark Fasheh if (status < 0) { 738ccd979bdSMark Fasheh mlog_errno(status); 739ccd979bdSMark Fasheh goto bail; 740ccd979bdSMark Fasheh } 741ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 742ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 743ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 744ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 745ccd979bdSMark Fasheh status = -EINVAL; 746ccd979bdSMark Fasheh } 747ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 748ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 749ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 750ccd979bdSMark Fasheh hdr->signature); 751ccd979bdSMark Fasheh status = -EINVAL; 752ccd979bdSMark Fasheh } 753ccd979bdSMark Fasheh brelse(*bh); 754ccd979bdSMark Fasheh *bh = NULL; 755ccd979bdSMark Fasheh if (status < 0) { 756ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 757ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 758ccd979bdSMark Fasheh goto bail; 759ccd979bdSMark Fasheh } 760ccd979bdSMark Fasheh 761ccd979bdSMark Fasheh /* 762ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 763ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 764ccd979bdSMark Fasheh * the minimum clustersize. 765ccd979bdSMark Fasheh */ 766ccd979bdSMark Fasheh status = -EINVAL; 767ccd979bdSMark Fasheh for (blksize = *sector_size; 768ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 769ccd979bdSMark Fasheh blksize <<= 1) { 770ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 771ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 772ccd979bdSMark Fasheh blksize); 773ccd979bdSMark Fasheh if (tmpstat < 0) { 774ccd979bdSMark Fasheh status = tmpstat; 775ccd979bdSMark Fasheh mlog_errno(status); 776fb5cbe9eSJoel Becker break; 777ccd979bdSMark Fasheh } 778ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 77973be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 7801c1d9793SJan Kara spin_lock_init(&stats->b_lock); 781fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 782fb5cbe9eSJoel Becker if (tmpstat < 0) { 783ccd979bdSMark Fasheh brelse(*bh); 784ccd979bdSMark Fasheh *bh = NULL; 785fb5cbe9eSJoel Becker } 786fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 787fb5cbe9eSJoel Becker status = tmpstat; 788ccd979bdSMark Fasheh break; 789ccd979bdSMark Fasheh } 790fb5cbe9eSJoel Becker } 791ccd979bdSMark Fasheh 792ccd979bdSMark Fasheh bail: 793ccd979bdSMark Fasheh return status; 794ccd979bdSMark Fasheh } 795ccd979bdSMark Fasheh 796c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 797c271c5c2SSunil Mushran { 798c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 799c271c5c2SSunil Mushran if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 800c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 801c271c5c2SSunil Mushran "mounted device.\n"); 802c271c5c2SSunil Mushran return -EINVAL; 803c271c5c2SSunil Mushran } 804c271c5c2SSunil Mushran } 805c271c5c2SSunil Mushran 806b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 807b61817e1SJoel Becker if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 808b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 809b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 810b61817e1SJoel Becker return -EINVAL; 811b61817e1SJoel Becker } 812b61817e1SJoel Becker } 813b61817e1SJoel Becker 814c271c5c2SSunil Mushran if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 815b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 816b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 817c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 818c271c5c2SSunil Mushran "a read-write clustered device.\n"); 819c271c5c2SSunil Mushran return -EINVAL; 820c271c5c2SSunil Mushran } 821c271c5c2SSunil Mushran } 822c271c5c2SSunil Mushran 823c271c5c2SSunil Mushran return 0; 824c271c5c2SSunil Mushran } 825c271c5c2SSunil Mushran 826b61817e1SJoel Becker /* 827b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 828b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 829b61817e1SJoel Becker * have passed a stack. 830b61817e1SJoel Becker */ 831b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 832b61817e1SJoel Becker struct mount_options *mopt) 833b61817e1SJoel Becker { 834b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 835b61817e1SJoel Becker mlog(ML_ERROR, 836b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 837b61817e1SJoel Becker "does not support it\n"); 838b61817e1SJoel Becker return -EINVAL; 839b61817e1SJoel Becker } 840b61817e1SJoel Becker 841b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 842b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 843b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 844b61817e1SJoel Becker mlog(ML_ERROR, 845b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 846b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 847b61817e1SJoel Becker mopt->cluster_stack, 848b61817e1SJoel Becker osb->osb_cluster_stack); 849b61817e1SJoel Becker return -EINVAL; 850b61817e1SJoel Becker } 851b61817e1SJoel Becker 852b61817e1SJoel Becker return 0; 853b61817e1SJoel Becker } 854b61817e1SJoel Becker 85519ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 85619ece546SJan Kara { 85719ece546SJan Kara int type; 85819ece546SJan Kara struct super_block *sb = osb->sb; 85919ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 86019ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 86119ece546SJan Kara int status = 0; 86219ece546SJan Kara 86319ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 86419ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 86519ece546SJan Kara continue; 86619ece546SJan Kara if (unsuspend) 86719ece546SJan Kara status = vfs_quota_enable( 86819ece546SJan Kara sb_dqopt(sb)->files[type], 86919ece546SJan Kara type, QFMT_OCFS2, 87019ece546SJan Kara DQUOT_SUSPENDED); 87119ece546SJan Kara else 87219ece546SJan Kara status = vfs_quota_disable(sb, type, 87319ece546SJan Kara DQUOT_SUSPENDED); 87419ece546SJan Kara if (status < 0) 87519ece546SJan Kara break; 87619ece546SJan Kara } 87719ece546SJan Kara if (status < 0) 87819ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 87919ece546SJan Kara "remount (error = %d).\n", status); 88019ece546SJan Kara return status; 88119ece546SJan Kara } 88219ece546SJan Kara 88319ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 88419ece546SJan Kara { 88519ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 88619ece546SJan Kara struct super_block *sb = osb->sb; 88719ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 88819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 88919ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 89019ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 89119ece546SJan Kara int status; 89219ece546SJan Kara int type; 89319ece546SJan Kara 89419ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 89519ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 89619ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 89719ece546SJan Kara continue; 89819ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 89919ece546SJan Kara osb->slot_num); 90019ece546SJan Kara if (!inode[type]) { 90119ece546SJan Kara status = -ENOENT; 90219ece546SJan Kara goto out_quota_off; 90319ece546SJan Kara } 90419ece546SJan Kara status = vfs_quota_enable(inode[type], type, QFMT_OCFS2, 90519ece546SJan Kara DQUOT_USAGE_ENABLED); 90619ece546SJan Kara if (status < 0) 90719ece546SJan Kara goto out_quota_off; 90819ece546SJan Kara } 90919ece546SJan Kara 91019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 91119ece546SJan Kara iput(inode[type]); 91219ece546SJan Kara return 0; 91319ece546SJan Kara out_quota_off: 91419ece546SJan Kara ocfs2_disable_quotas(osb); 91519ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 91619ece546SJan Kara iput(inode[type]); 91719ece546SJan Kara mlog_errno(status); 91819ece546SJan Kara return status; 91919ece546SJan Kara } 92019ece546SJan Kara 92119ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 92219ece546SJan Kara { 92319ece546SJan Kara int type; 92419ece546SJan Kara struct inode *inode; 92519ece546SJan Kara struct super_block *sb = osb->sb; 92619ece546SJan Kara 92719ece546SJan Kara /* We mostly ignore errors in this function because there's not much 92819ece546SJan Kara * we can do when we see them */ 92919ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 93019ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 93119ece546SJan Kara continue; 93219ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 93319ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 93419ece546SJan Kara * memory and so they will be automatically synced to global 93519ece546SJan Kara * quota files */ 93619ece546SJan Kara vfs_quota_disable(sb, type, DQUOT_USAGE_ENABLED | 93719ece546SJan Kara DQUOT_LIMITS_ENABLED); 93819ece546SJan Kara if (!inode) 93919ece546SJan Kara continue; 94019ece546SJan Kara iput(inode); 94119ece546SJan Kara } 94219ece546SJan Kara } 94319ece546SJan Kara 94419ece546SJan Kara /* Handle quota on quotactl */ 94519ece546SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id, 94619ece546SJan Kara char *path, int remount) 94719ece546SJan Kara { 94819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 94919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 95019ece546SJan Kara 95119ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 95219ece546SJan Kara return -EINVAL; 95319ece546SJan Kara 95419ece546SJan Kara if (remount) 95519ece546SJan Kara return 0; /* Just ignore it has been handled in 95619ece546SJan Kara * ocfs2_remount() */ 95719ece546SJan Kara return vfs_quota_enable(sb_dqopt(sb)->files[type], type, 95819ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 95919ece546SJan Kara } 96019ece546SJan Kara 96119ece546SJan Kara /* Handle quota off quotactl */ 96219ece546SJan Kara static int ocfs2_quota_off(struct super_block *sb, int type, int remount) 96319ece546SJan Kara { 96419ece546SJan Kara if (remount) 96519ece546SJan Kara return 0; /* Ignore now and handle later in 96619ece546SJan Kara * ocfs2_remount() */ 96719ece546SJan Kara return vfs_quota_disable(sb, type, DQUOT_LIMITS_ENABLED); 96819ece546SJan Kara } 96919ece546SJan Kara 9700d54b217SAlexey Dobriyan static const struct quotactl_ops ocfs2_quotactl_ops = { 97119ece546SJan Kara .quota_on = ocfs2_quota_on, 97219ece546SJan Kara .quota_off = ocfs2_quota_off, 97319ece546SJan Kara .quota_sync = vfs_quota_sync, 97419ece546SJan Kara .get_info = vfs_get_dqinfo, 97519ece546SJan Kara .set_info = vfs_set_dqinfo, 97619ece546SJan Kara .get_dqblk = vfs_get_dqblk, 97719ece546SJan Kara .set_dqblk = vfs_set_dqblk, 97819ece546SJan Kara }; 97919ece546SJan Kara 980ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 981ccd979bdSMark Fasheh { 982ccd979bdSMark Fasheh struct dentry *root; 983ccd979bdSMark Fasheh int status, sector_size; 984c0123adeSTiger Yang struct mount_options parsed_options; 985ccd979bdSMark Fasheh struct inode *inode = NULL; 986ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 987ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 988c271c5c2SSunil Mushran char nodestr[8]; 98973be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 990ccd979bdSMark Fasheh 991ccd979bdSMark Fasheh mlog_entry("%p, %p, %i", sb, data, silent); 992ccd979bdSMark Fasheh 993c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 994c271c5c2SSunil Mushran status = -EINVAL; 995c271c5c2SSunil Mushran goto read_super_error; 996c271c5c2SSunil Mushran } 997c271c5c2SSunil Mushran 998ccd979bdSMark Fasheh /* probe for superblock */ 99973be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1000ccd979bdSMark Fasheh if (status < 0) { 1001ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1002ccd979bdSMark Fasheh goto read_super_error; 1003ccd979bdSMark Fasheh } 1004ccd979bdSMark Fasheh 100573be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1006ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1007ccd979bdSMark Fasheh if (status < 0) { 1008ccd979bdSMark Fasheh mlog_errno(status); 1009ccd979bdSMark Fasheh goto read_super_error; 1010ccd979bdSMark Fasheh } 1011ccd979bdSMark Fasheh brelse(bh); 1012ccd979bdSMark Fasheh bh = NULL; 1013a68979b8STiger Yang 1014a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 1015a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1016a68979b8STiger Yang 1017c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1018c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1019c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1020d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 10219c7af40bSMark Fasheh osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt); 10229c7af40bSMark Fasheh osb->local_alloc_bits = osb->local_alloc_default_bits; 102319ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_USRQUOTA && 102419ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 102519ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 102619ece546SJan Kara status = -EINVAL; 102719ece546SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 102819ece546SJan Kara "filesystem does not have the feature enabled.\n"); 102919ece546SJan Kara goto read_super_error; 103019ece546SJan Kara } 103119ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_GRPQUOTA && 103219ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 103319ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 103419ece546SJan Kara status = -EINVAL; 103519ece546SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 103619ece546SJan Kara "filesystem does not have the feature enabled.\n"); 103719ece546SJan Kara goto read_super_error; 103819ece546SJan Kara } 1039ccd979bdSMark Fasheh 1040b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1041b61817e1SJoel Becker if (status) 1042b61817e1SJoel Becker goto read_super_error; 1043b61817e1SJoel Becker 1044ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1045ccd979bdSMark Fasheh 1046a68979b8STiger Yang sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 1047a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1048a68979b8STiger Yang 1049ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1050ccd979bdSMark Fasheh * heartbeat=none */ 1051ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1052ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1053ccd979bdSMark Fasheh status = -EACCES; 1054ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1055ccd979bdSMark Fasheh "mount was not specified.\n"); 1056ccd979bdSMark Fasheh goto read_super_error; 1057ccd979bdSMark Fasheh } 1058ccd979bdSMark Fasheh 1059ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1060ccd979bdSMark Fasheh * on a readonly device. */ 1061ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1062ccd979bdSMark Fasheh status = -EROFS; 1063ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1064ccd979bdSMark Fasheh "device.\n"); 1065ccd979bdSMark Fasheh goto read_super_error; 1066ccd979bdSMark Fasheh } 1067ccd979bdSMark Fasheh 1068ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1069ccd979bdSMark Fasheh if (status < 0) { 1070ccd979bdSMark Fasheh if (status == -EROFS) 1071ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1072ccd979bdSMark Fasheh "file system, but write access is " 1073ccd979bdSMark Fasheh "unavailable.\n"); 1074ccd979bdSMark Fasheh else 1075ccd979bdSMark Fasheh mlog_errno(status); 1076ccd979bdSMark Fasheh goto read_super_error; 1077ccd979bdSMark Fasheh } 1078ccd979bdSMark Fasheh 1079ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1080ccd979bdSMark Fasheh 1081ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 1082ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 1083ccd979bdSMark Fasheh "will be skipped.\n"); 1084ccd979bdSMark Fasheh } 1085ccd979bdSMark Fasheh 1086ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1087ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1088ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1089ccd979bdSMark Fasheh } 1090ccd979bdSMark Fasheh 1091c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1092c271c5c2SSunil Mushran if (status < 0) { 1093c271c5c2SSunil Mushran mlog_errno(status); 1094c271c5c2SSunil Mushran goto read_super_error; 1095c271c5c2SSunil Mushran } 1096c271c5c2SSunil Mushran 1097ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1098ccd979bdSMark Fasheh ocfs2_debugfs_root); 1099ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1100ccd979bdSMark Fasheh status = -EINVAL; 1101ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1102ccd979bdSMark Fasheh goto read_super_error; 1103ccd979bdSMark Fasheh } 1104ccd979bdSMark Fasheh 110550397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 110650397507SSunil Mushran osb->osb_debug_root, 110750397507SSunil Mushran osb, 110850397507SSunil Mushran &ocfs2_osb_debug_fops); 110950397507SSunil Mushran if (!osb->osb_ctxt) { 111050397507SSunil Mushran status = -EINVAL; 111150397507SSunil Mushran mlog_errno(status); 111250397507SSunil Mushran goto read_super_error; 111350397507SSunil Mushran } 111450397507SSunil Mushran 111573be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 111673be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 111773be192bSJoel Becker &osb->osb_ecc_stats, 111873be192bSJoel Becker osb->osb_debug_root); 111973be192bSJoel Becker if (status) { 112073be192bSJoel Becker mlog(ML_ERROR, 112173be192bSJoel Becker "Unable to create blockcheck statistics " 112273be192bSJoel Becker "files\n"); 112373be192bSJoel Becker goto read_super_error; 112473be192bSJoel Becker } 112573be192bSJoel Becker } 112673be192bSJoel Becker 1127ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1128ccd979bdSMark Fasheh if (osb->root_inode) 1129ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 1130ccd979bdSMark Fasheh 1131ccd979bdSMark Fasheh if (status < 0) 1132ccd979bdSMark Fasheh goto read_super_error; 1133ccd979bdSMark Fasheh 1134ccd979bdSMark Fasheh if (!inode) { 1135ccd979bdSMark Fasheh status = -EIO; 1136ccd979bdSMark Fasheh mlog_errno(status); 1137ccd979bdSMark Fasheh goto read_super_error; 1138ccd979bdSMark Fasheh } 1139ccd979bdSMark Fasheh 1140ccd979bdSMark Fasheh root = d_alloc_root(inode); 1141ccd979bdSMark Fasheh if (!root) { 1142ccd979bdSMark Fasheh status = -ENOMEM; 1143ccd979bdSMark Fasheh mlog_errno(status); 1144ccd979bdSMark Fasheh goto read_super_error; 1145ccd979bdSMark Fasheh } 1146ccd979bdSMark Fasheh 1147ccd979bdSMark Fasheh sb->s_root = root; 1148ccd979bdSMark Fasheh 1149ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1150ccd979bdSMark Fasheh 1151c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1152c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1153c271c5c2SSunil Mushran else 115419fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1155c271c5c2SSunil Mushran 1156c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1157781ee3e2SSunil Mushran "with %s data mode.\n", 1158c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1159ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1160ccd979bdSMark Fasheh "ordered"); 1161ccd979bdSMark Fasheh 1162ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1163ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1164ccd979bdSMark Fasheh 116519ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 116619ece546SJan Kara * for cluster locks recovery now. That also means that truncation 116719ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 116819ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 116919ece546SJan Kara status = ocfs2_enable_quotas(osb); 117019ece546SJan Kara if (status < 0) { 117119ece546SJan Kara /* We have to err-out specially here because 117219ece546SJan Kara * s_root is already set */ 117319ece546SJan Kara mlog_errno(status); 117419ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 117519ece546SJan Kara wake_up(&osb->osb_mount_event); 117619ece546SJan Kara mlog_exit(status); 117719ece546SJan Kara return status; 117819ece546SJan Kara } 117919ece546SJan Kara } 118019ece546SJan Kara 118119ece546SJan Kara ocfs2_complete_quota_recovery(osb); 118219ece546SJan Kara 118319ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 118419ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 118519ece546SJan Kara wake_up(&osb->osb_mount_event); 118619ece546SJan Kara 1187df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 11888b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1189df152c24SSunil Mushran 1190ccd979bdSMark Fasheh mlog_exit(status); 1191ccd979bdSMark Fasheh return status; 1192ccd979bdSMark Fasheh 1193ccd979bdSMark Fasheh read_super_error: 1194ccd979bdSMark Fasheh brelse(bh); 1195ccd979bdSMark Fasheh 1196ccd979bdSMark Fasheh if (inode) 1197ccd979bdSMark Fasheh iput(inode); 1198ccd979bdSMark Fasheh 1199ccd979bdSMark Fasheh if (osb) { 1200ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1201ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1202ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1203ccd979bdSMark Fasheh } 1204ccd979bdSMark Fasheh 1205ccd979bdSMark Fasheh mlog_exit(status); 1206ccd979bdSMark Fasheh return status; 1207ccd979bdSMark Fasheh } 1208ccd979bdSMark Fasheh 1209454e2398SDavid Howells static int ocfs2_get_sb(struct file_system_type *fs_type, 1210ccd979bdSMark Fasheh int flags, 1211ccd979bdSMark Fasheh const char *dev_name, 1212454e2398SDavid Howells void *data, 1213454e2398SDavid Howells struct vfsmount *mnt) 1214ccd979bdSMark Fasheh { 1215454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, 1216454e2398SDavid Howells mnt); 1217ccd979bdSMark Fasheh } 1218ccd979bdSMark Fasheh 1219f7b1aa69SJan Kara static void ocfs2_kill_sb(struct super_block *sb) 1220f7b1aa69SJan Kara { 1221f7b1aa69SJan Kara struct ocfs2_super *osb = OCFS2_SB(sb); 1222f7b1aa69SJan Kara 12235fd13189SJan Kara /* Failed mount? */ 12245fd13189SJan Kara if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) 12255fd13189SJan Kara goto out; 12265fd13189SJan Kara 1227f7b1aa69SJan Kara /* Prevent further queueing of inode drop events */ 1228f7b1aa69SJan Kara spin_lock(&dentry_list_lock); 1229f7b1aa69SJan Kara ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); 1230f7b1aa69SJan Kara spin_unlock(&dentry_list_lock); 1231f7b1aa69SJan Kara /* Wait for work to finish and/or remove it */ 1232f7b1aa69SJan Kara cancel_work_sync(&osb->dentry_lock_work); 12335fd13189SJan Kara out: 1234f7b1aa69SJan Kara kill_block_super(sb); 1235f7b1aa69SJan Kara } 1236f7b1aa69SJan Kara 1237ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1238ccd979bdSMark Fasheh .owner = THIS_MODULE, 1239ccd979bdSMark Fasheh .name = "ocfs2", 1240ccd979bdSMark Fasheh .get_sb = ocfs2_get_sb, /* is this called when we mount 1241ccd979bdSMark Fasheh * the fs? */ 1242f7b1aa69SJan Kara .kill_sb = ocfs2_kill_sb, 1243f7b1aa69SJan Kara 12441ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1245ccd979bdSMark Fasheh .next = NULL 1246ccd979bdSMark Fasheh }; 1247ccd979bdSMark Fasheh 1248ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1249ccd979bdSMark Fasheh char *options, 1250c0123adeSTiger Yang struct mount_options *mopt, 1251ccd979bdSMark Fasheh int is_remount) 1252ccd979bdSMark Fasheh { 1253ccd979bdSMark Fasheh int status; 1254ccd979bdSMark Fasheh char *p; 1255ccd979bdSMark Fasheh 1256ccd979bdSMark Fasheh mlog_entry("remount: %d, options: \"%s\"\n", is_remount, 1257ccd979bdSMark Fasheh options ? options : "(none)"); 1258ccd979bdSMark Fasheh 1259d147b3d6SMark Fasheh mopt->commit_interval = 0; 1260c0123adeSTiger Yang mopt->mount_opt = 0; 1261c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1262c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 12632fbe8d1eSSunil Mushran mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; 1264b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1265ccd979bdSMark Fasheh 1266ccd979bdSMark Fasheh if (!options) { 1267ccd979bdSMark Fasheh status = 1; 1268ccd979bdSMark Fasheh goto bail; 1269ccd979bdSMark Fasheh } 1270ccd979bdSMark Fasheh 1271ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1272ccd979bdSMark Fasheh int token, option; 1273ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1274ccd979bdSMark Fasheh 1275ccd979bdSMark Fasheh if (!*p) 1276ccd979bdSMark Fasheh continue; 1277ccd979bdSMark Fasheh 1278ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1279ccd979bdSMark Fasheh switch (token) { 1280ccd979bdSMark Fasheh case Opt_hb_local: 1281c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1282ccd979bdSMark Fasheh break; 1283ccd979bdSMark Fasheh case Opt_hb_none: 1284c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; 1285ccd979bdSMark Fasheh break; 1286ccd979bdSMark Fasheh case Opt_barrier: 1287ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1288ccd979bdSMark Fasheh status = 0; 1289ccd979bdSMark Fasheh goto bail; 1290ccd979bdSMark Fasheh } 1291ccd979bdSMark Fasheh if (option) 1292c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1293ccd979bdSMark Fasheh else 1294c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1295ccd979bdSMark Fasheh break; 1296ccd979bdSMark Fasheh case Opt_intr: 1297c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1298ccd979bdSMark Fasheh break; 1299ccd979bdSMark Fasheh case Opt_nointr: 1300c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1301ccd979bdSMark Fasheh break; 1302ccd979bdSMark Fasheh case Opt_err_panic: 1303c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1304ccd979bdSMark Fasheh break; 1305ccd979bdSMark Fasheh case Opt_err_ro: 1306c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1307ccd979bdSMark Fasheh break; 1308ccd979bdSMark Fasheh case Opt_data_ordered: 1309c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1310ccd979bdSMark Fasheh break; 1311ccd979bdSMark Fasheh case Opt_data_writeback: 1312c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1313ccd979bdSMark Fasheh break; 1314cf1d6c76STiger Yang case Opt_user_xattr: 1315cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1316cf1d6c76STiger Yang break; 1317cf1d6c76STiger Yang case Opt_nouser_xattr: 1318cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1319cf1d6c76STiger Yang break; 13207f1a37e3STiger Yang case Opt_atime_quantum: 13217f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13227f1a37e3STiger Yang status = 0; 13237f1a37e3STiger Yang goto bail; 13247f1a37e3STiger Yang } 13257f1a37e3STiger Yang if (option >= 0) 1326c0123adeSTiger Yang mopt->atime_quantum = option; 13277f1a37e3STiger Yang break; 1328baf4661aSSunil Mushran case Opt_slot: 1329baf4661aSSunil Mushran option = 0; 1330baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1331baf4661aSSunil Mushran status = 0; 1332baf4661aSSunil Mushran goto bail; 1333baf4661aSSunil Mushran } 1334baf4661aSSunil Mushran if (option) 1335c0123adeSTiger Yang mopt->slot = (s16)option; 1336baf4661aSSunil Mushran break; 1337d147b3d6SMark Fasheh case Opt_commit: 1338d147b3d6SMark Fasheh option = 0; 1339d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1340d147b3d6SMark Fasheh status = 0; 1341d147b3d6SMark Fasheh goto bail; 1342d147b3d6SMark Fasheh } 1343d147b3d6SMark Fasheh if (option < 0) 1344d147b3d6SMark Fasheh return 0; 1345d147b3d6SMark Fasheh if (option == 0) 13462b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1347d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1348d147b3d6SMark Fasheh break; 13492fbe8d1eSSunil Mushran case Opt_localalloc: 13502fbe8d1eSSunil Mushran option = 0; 13512fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 13522fbe8d1eSSunil Mushran status = 0; 13532fbe8d1eSSunil Mushran goto bail; 13542fbe8d1eSSunil Mushran } 13552fbe8d1eSSunil Mushran if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8)) 13562fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 13572fbe8d1eSSunil Mushran break; 135853fc622bSMark Fasheh case Opt_localflocks: 135953fc622bSMark Fasheh /* 136053fc622bSMark Fasheh * Changing this during remount could race 136153fc622bSMark Fasheh * flock() requests, or "unbalance" existing 136253fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 136353fc622bSMark Fasheh * dropped in the other). If users care enough 136453fc622bSMark Fasheh * to flip locking modes during remount, we 136553fc622bSMark Fasheh * could add a "local" flag to individual 136653fc622bSMark Fasheh * flock structures for proper tracking of 136753fc622bSMark Fasheh * state. 136853fc622bSMark Fasheh */ 136953fc622bSMark Fasheh if (!is_remount) 137053fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 137153fc622bSMark Fasheh break; 1372b61817e1SJoel Becker case Opt_stack: 1373b61817e1SJoel Becker /* Check both that the option we were passed 1374b61817e1SJoel Becker * is of the right length and that it is a proper 1375b61817e1SJoel Becker * string of the right length. 1376b61817e1SJoel Becker */ 1377b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1378b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1379b61817e1SJoel Becker (strnlen(args[0].from, 1380b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1381b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1382b61817e1SJoel Becker mlog(ML_ERROR, 1383b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1384b61817e1SJoel Becker status = 0; 1385b61817e1SJoel Becker goto bail; 1386b61817e1SJoel Becker } 1387b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1388b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1389b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 1390b61817e1SJoel Becker break; 139112462f1dSJoel Becker case Opt_inode64: 139212462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 139312462f1dSJoel Becker break; 139419ece546SJan Kara case Opt_usrquota: 139519ece546SJan Kara /* We check only on remount, otherwise features 139619ece546SJan Kara * aren't yet initialized. */ 139719ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 139819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 139919ece546SJan Kara mlog(ML_ERROR, "User quota requested but " 140019ece546SJan Kara "filesystem feature is not set\n"); 140119ece546SJan Kara status = 0; 140219ece546SJan Kara goto bail; 140319ece546SJan Kara } 140419ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 140519ece546SJan Kara break; 140619ece546SJan Kara case Opt_grpquota: 140719ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 140819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 140919ece546SJan Kara mlog(ML_ERROR, "Group quota requested but " 141019ece546SJan Kara "filesystem feature is not set\n"); 141119ece546SJan Kara status = 0; 141219ece546SJan Kara goto bail; 141319ece546SJan Kara } 141419ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 141519ece546SJan Kara break; 1416a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1417a68979b8STiger Yang case Opt_acl: 1418a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 1419a68979b8STiger Yang break; 1420a68979b8STiger Yang case Opt_noacl: 1421a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1422a68979b8STiger Yang break; 1423a68979b8STiger Yang #else 1424a68979b8STiger Yang case Opt_acl: 1425a68979b8STiger Yang case Opt_noacl: 1426a68979b8STiger Yang printk(KERN_INFO "ocfs2 (no)acl options not supported\n"); 1427a68979b8STiger Yang break; 1428a68979b8STiger Yang #endif 1429ccd979bdSMark Fasheh default: 1430ccd979bdSMark Fasheh mlog(ML_ERROR, 1431ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1432ccd979bdSMark Fasheh "or missing value\n", p); 1433ccd979bdSMark Fasheh status = 0; 1434ccd979bdSMark Fasheh goto bail; 1435ccd979bdSMark Fasheh } 1436ccd979bdSMark Fasheh } 1437ccd979bdSMark Fasheh 1438ccd979bdSMark Fasheh status = 1; 1439ccd979bdSMark Fasheh 1440ccd979bdSMark Fasheh bail: 1441ccd979bdSMark Fasheh mlog_exit(status); 1442ccd979bdSMark Fasheh return status; 1443ccd979bdSMark Fasheh } 1444ccd979bdSMark Fasheh 1445d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1446d550071cSSunil Mushran { 1447d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1448d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1449ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1450d550071cSSunil Mushran 1451d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 1452d550071cSSunil Mushran seq_printf(s, ",_netdev,heartbeat=local"); 1453d550071cSSunil Mushran else 1454d550071cSSunil Mushran seq_printf(s, ",heartbeat=none"); 1455d550071cSSunil Mushran 1456d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1457d550071cSSunil Mushran seq_printf(s, ",nointr"); 1458d550071cSSunil Mushran 1459d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1460d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1461d550071cSSunil Mushran else 1462d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1463d550071cSSunil Mushran 1464d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1465d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1466d550071cSSunil Mushran 1467d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1468d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1469d550071cSSunil Mushran else 1470d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1471d550071cSSunil Mushran 1472d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1473d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1474d550071cSSunil Mushran 1475d550071cSSunil Mushran if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) 1476d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1477d550071cSSunil Mushran 1478d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1479d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1480d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1481d147b3d6SMark Fasheh 1482ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 1483ebcee4b5SMark Fasheh if (local_alloc_megs != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE) 1484ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 14852fbe8d1eSSunil Mushran 148653fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 148753fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 148853fc622bSMark Fasheh 1489b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1490b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1491b61817e1SJoel Becker osb->osb_cluster_stack); 149219ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 149319ece546SJan Kara seq_printf(s, ",usrquota"); 149419ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 149519ece546SJan Kara seq_printf(s, ",grpquota"); 1496b61817e1SJoel Becker 1497b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1498b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1499b0f73cfcSSunil Mushran else 1500b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1501b0f73cfcSSunil Mushran 150212462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 150312462f1dSJoel Becker seq_printf(s, ",inode64"); 150412462f1dSJoel Becker 1505a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1506a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1507a68979b8STiger Yang seq_printf(s, ",acl"); 1508a68979b8STiger Yang else 1509a68979b8STiger Yang seq_printf(s, ",noacl"); 1510a68979b8STiger Yang #endif 1511a68979b8STiger Yang 1512d550071cSSunil Mushran return 0; 1513d550071cSSunil Mushran } 1514d550071cSSunil Mushran 1515ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1516ccd979bdSMark Fasheh { 1517ccd979bdSMark Fasheh int status; 1518ccd979bdSMark Fasheh 1519ccd979bdSMark Fasheh mlog_entry_void(); 1520ccd979bdSMark Fasheh 1521ccd979bdSMark Fasheh ocfs2_print_version(); 1522ccd979bdSMark Fasheh 1523ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1524ccd979bdSMark Fasheh if (status < 0) { 1525ccd979bdSMark Fasheh mlog_errno(status); 1526ccd979bdSMark Fasheh goto leave; 1527ccd979bdSMark Fasheh } 1528ccd979bdSMark Fasheh 1529ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1530ccd979bdSMark Fasheh if (status < 0) { 1531ccd979bdSMark Fasheh mlog_errno(status); 1532ccd979bdSMark Fasheh goto leave; 1533ccd979bdSMark Fasheh } 1534ccd979bdSMark Fasheh 1535ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1536ccd979bdSMark Fasheh if (!ocfs2_wq) { 1537ccd979bdSMark Fasheh status = -ENOMEM; 1538ccd979bdSMark Fasheh goto leave; 1539ccd979bdSMark Fasheh } 1540ccd979bdSMark Fasheh 1541ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1542ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1543ccd979bdSMark Fasheh status = -EFAULT; 1544ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1545ccd979bdSMark Fasheh } 1546ccd979bdSMark Fasheh 1547171bf93cSMark Fasheh status = ocfs2_quota_setup(); 1548171bf93cSMark Fasheh if (status) 1549171bf93cSMark Fasheh goto leave; 1550171bf93cSMark Fasheh 155163e0c48aSJoel Becker ocfs2_set_locking_protocol(); 155263e0c48aSJoel Becker 15539e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1554ccd979bdSMark Fasheh leave: 1555ccd979bdSMark Fasheh if (status < 0) { 1556171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1557ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1558ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1559ccd979bdSMark Fasheh } 1560ccd979bdSMark Fasheh 1561ccd979bdSMark Fasheh mlog_exit(status); 1562ccd979bdSMark Fasheh 1563ccd979bdSMark Fasheh if (status >= 0) { 1564ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1565ccd979bdSMark Fasheh } else 1566ccd979bdSMark Fasheh return -1; 1567ccd979bdSMark Fasheh } 1568ccd979bdSMark Fasheh 1569ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1570ccd979bdSMark Fasheh { 1571ccd979bdSMark Fasheh mlog_entry_void(); 1572ccd979bdSMark Fasheh 1573171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1574171bf93cSMark Fasheh 1575ccd979bdSMark Fasheh if (ocfs2_wq) { 1576ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1577ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1578ccd979bdSMark Fasheh } 1579ccd979bdSMark Fasheh 15809e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 15819e33d69fSJan Kara 1582ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1583ccd979bdSMark Fasheh 1584ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1585ccd979bdSMark Fasheh 1586ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1587ccd979bdSMark Fasheh 1588ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1589ccd979bdSMark Fasheh 1590ccd979bdSMark Fasheh mlog_exit_void(); 1591ccd979bdSMark Fasheh } 1592ccd979bdSMark Fasheh 1593ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1594ccd979bdSMark Fasheh { 1595ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1596ccd979bdSMark Fasheh 15976cfd0148SChristoph Hellwig lock_kernel(); 15986cfd0148SChristoph Hellwig 1599ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1600ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1601ccd979bdSMark Fasheh 16026cfd0148SChristoph Hellwig unlock_kernel(); 16036cfd0148SChristoph Hellwig 1604ccd979bdSMark Fasheh mlog_exit_void(); 1605ccd979bdSMark Fasheh } 1606ccd979bdSMark Fasheh 1607726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1608ccd979bdSMark Fasheh { 1609ccd979bdSMark Fasheh struct ocfs2_super *osb; 1610ccd979bdSMark Fasheh u32 numbits, freebits; 1611ccd979bdSMark Fasheh int status; 1612ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1613ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1614ccd979bdSMark Fasheh struct inode *inode = NULL; 1615ccd979bdSMark Fasheh 1616726c3342SDavid Howells mlog_entry("(%p, %p)\n", dentry->d_sb, buf); 1617ccd979bdSMark Fasheh 1618726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1619ccd979bdSMark Fasheh 1620ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1621ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1622ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1623ccd979bdSMark Fasheh if (!inode) { 1624ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1625ccd979bdSMark Fasheh status = -EIO; 1626ccd979bdSMark Fasheh goto bail; 1627ccd979bdSMark Fasheh } 1628ccd979bdSMark Fasheh 1629e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1630ccd979bdSMark Fasheh if (status < 0) { 1631ccd979bdSMark Fasheh mlog_errno(status); 1632ccd979bdSMark Fasheh goto bail; 1633ccd979bdSMark Fasheh } 1634ccd979bdSMark Fasheh 1635ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1636ccd979bdSMark Fasheh 1637ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1638ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1639ccd979bdSMark Fasheh 1640ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1641726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1642ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1643ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1644ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1645ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1646ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1647ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1648ccd979bdSMark Fasheh buf->f_files = numbits; 1649ccd979bdSMark Fasheh buf->f_ffree = freebits; 1650837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1651837711f8SColy Li & 0xFFFFFFFFUL; 1652837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1653837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1654ccd979bdSMark Fasheh 1655ccd979bdSMark Fasheh brelse(bh); 1656ccd979bdSMark Fasheh 1657e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1658ccd979bdSMark Fasheh status = 0; 1659ccd979bdSMark Fasheh bail: 1660ccd979bdSMark Fasheh if (inode) 1661ccd979bdSMark Fasheh iput(inode); 1662ccd979bdSMark Fasheh 1663ccd979bdSMark Fasheh mlog_exit(status); 1664ccd979bdSMark Fasheh 1665ccd979bdSMark Fasheh return status; 1666ccd979bdSMark Fasheh } 1667ccd979bdSMark Fasheh 166851cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1669ccd979bdSMark Fasheh { 1670ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1671ccd979bdSMark Fasheh 1672ccd979bdSMark Fasheh oi->ip_flags = 0; 1673ccd979bdSMark Fasheh oi->ip_open_count = 0; 1674ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 167583418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1676ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1677ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1678ccd979bdSMark Fasheh 1679ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1680cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1681251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1682ccd979bdSMark Fasheh 1683ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1684ccd979bdSMark Fasheh oi->ip_clusters = 0; 1685ccd979bdSMark Fasheh 1686ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1687e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 168850008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1689ccd979bdSMark Fasheh 16908cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 16916e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1692ccd979bdSMark Fasheh 1693ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1694ccd979bdSMark Fasheh } 1695ccd979bdSMark Fasheh 1696ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1697ccd979bdSMark Fasheh { 1698ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1699ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1700fffb60f9SPaul Jackson 0, 1701fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1702fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 170320c2df83SPaul Mundt ocfs2_inode_init_once); 17049e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17059e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17069e33d69fSJan Kara 0, 17079e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17089e33d69fSJan Kara SLAB_MEM_SPREAD), 17099e33d69fSJan Kara NULL); 17109e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17119e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17129e33d69fSJan Kara 0, 17139e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 17149e33d69fSJan Kara NULL); 17159e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 17169e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 17179e33d69fSJan Kara if (ocfs2_inode_cachep) 17189e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 17199e33d69fSJan Kara if (ocfs2_dquot_cachep) 17209e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17219e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 17229e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1723ccd979bdSMark Fasheh return -ENOMEM; 17249e33d69fSJan Kara } 1725ccd979bdSMark Fasheh 1726ccd979bdSMark Fasheh return 0; 1727ccd979bdSMark Fasheh } 1728ccd979bdSMark Fasheh 1729ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1730ccd979bdSMark Fasheh { 1731ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1732ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1733ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 17349e33d69fSJan Kara 17359e33d69fSJan Kara if (ocfs2_dquot_cachep) 17369e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17379e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 17389e33d69fSJan Kara 17399e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 17409e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 17419e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1742ccd979bdSMark Fasheh } 1743ccd979bdSMark Fasheh 1744ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1745ccd979bdSMark Fasheh struct buffer_head **bh, 1746ccd979bdSMark Fasheh int block, 1747ccd979bdSMark Fasheh int sect_size) 1748ccd979bdSMark Fasheh { 1749ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1750ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1751ccd979bdSMark Fasheh return -EIO; 1752ccd979bdSMark Fasheh } 1753ccd979bdSMark Fasheh 1754ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1755ccd979bdSMark Fasheh if (!*bh) { 1756ccd979bdSMark Fasheh mlog_errno(-EIO); 1757ccd979bdSMark Fasheh return -EIO; 1758ccd979bdSMark Fasheh } 1759ccd979bdSMark Fasheh lock_buffer(*bh); 1760ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1761ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1762ccd979bdSMark Fasheh unlock_buffer(*bh); 1763ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1764ccd979bdSMark Fasheh wait_on_buffer(*bh); 176528d57d43Swengang wang if (!buffer_uptodate(*bh)) { 176628d57d43Swengang wang mlog_errno(-EIO); 176728d57d43Swengang wang brelse(*bh); 176828d57d43Swengang wang *bh = NULL; 176928d57d43Swengang wang return -EIO; 177028d57d43Swengang wang } 177128d57d43Swengang wang 1772ccd979bdSMark Fasheh return 0; 1773ccd979bdSMark Fasheh } 1774ccd979bdSMark Fasheh 1775ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1776ccd979bdSMark Fasheh { 1777ccd979bdSMark Fasheh int status = 0; 1778ccd979bdSMark Fasheh int unlock_super = 0; 1779ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1780ccd979bdSMark Fasheh 1781ccd979bdSMark Fasheh mlog_entry_void(); 1782ccd979bdSMark Fasheh 1783ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1784ccd979bdSMark Fasheh goto leave; 1785ccd979bdSMark Fasheh 1786ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1787ccd979bdSMark Fasheh if (status < 0) { 1788ccd979bdSMark Fasheh mlog_errno(status); 1789ccd979bdSMark Fasheh goto leave; 1790ccd979bdSMark Fasheh } 1791ccd979bdSMark Fasheh 1792ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1793ccd979bdSMark Fasheh if (status < 0) { 1794ccd979bdSMark Fasheh mlog_errno(status); 1795ccd979bdSMark Fasheh goto leave; 1796ccd979bdSMark Fasheh } 1797ccd979bdSMark Fasheh unlock_super = 1; 1798ccd979bdSMark Fasheh 1799ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1800ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1801ccd979bdSMark Fasheh if (status < 0) { 1802ccd979bdSMark Fasheh mlog_errno(status); 1803ccd979bdSMark Fasheh goto leave; 1804ccd979bdSMark Fasheh } 1805ccd979bdSMark Fasheh 1806ccd979bdSMark Fasheh /* load all node-local system inodes */ 1807ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1808ccd979bdSMark Fasheh if (status < 0) { 1809ccd979bdSMark Fasheh mlog_errno(status); 1810ccd979bdSMark Fasheh goto leave; 1811ccd979bdSMark Fasheh } 1812ccd979bdSMark Fasheh 1813ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1814ccd979bdSMark Fasheh if (status < 0) { 1815ccd979bdSMark Fasheh mlog_errno(status); 1816ccd979bdSMark Fasheh goto leave; 1817ccd979bdSMark Fasheh } 1818ccd979bdSMark Fasheh 1819ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 182006c59bb8STao Ma if (status < 0) 1821ccd979bdSMark Fasheh mlog_errno(status); 1822c271c5c2SSunil Mushran 1823ccd979bdSMark Fasheh leave: 1824ccd979bdSMark Fasheh if (unlock_super) 1825ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1826ccd979bdSMark Fasheh 1827ccd979bdSMark Fasheh mlog_exit(status); 1828ccd979bdSMark Fasheh return status; 1829ccd979bdSMark Fasheh } 1830ccd979bdSMark Fasheh 1831ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1832ccd979bdSMark Fasheh { 1833286eaa95SJoel Becker int tmp, hangup_needed = 0; 1834ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1835c271c5c2SSunil Mushran char nodestr[8]; 1836ccd979bdSMark Fasheh 1837ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1838ccd979bdSMark Fasheh 1839ccd979bdSMark Fasheh BUG_ON(!sb); 1840ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1841ccd979bdSMark Fasheh BUG_ON(!osb); 1842ccd979bdSMark Fasheh 184350397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 184450397507SSunil Mushran 1845f7b1aa69SJan Kara /* 1846f7b1aa69SJan Kara * Flush inode dropping work queue so that deletes are 1847f7b1aa69SJan Kara * performed while the filesystem is still working 1848f7b1aa69SJan Kara */ 1849f7b1aa69SJan Kara ocfs2_drop_all_dl_inodes(osb); 1850f7b1aa69SJan Kara 1851692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1852692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1853692684e1SSunil Mushran 185419ece546SJan Kara ocfs2_disable_quotas(osb); 185519ece546SJan Kara 1856ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1857ccd979bdSMark Fasheh 1858ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1859ccd979bdSMark Fasheh 1860553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1861553abd04SJoel Becker ocfs2_recovery_exit(osb); 1862ccd979bdSMark Fasheh 1863ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1864ccd979bdSMark Fasheh 1865ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1866ccd979bdSMark Fasheh 1867374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1868374a263eSTao Ma 18694670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 18704670c46dSJoel Becker * all the steps which depended on that to complete. */ 18714670c46dSJoel Becker if (osb->cconn) { 1872ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1873ccd979bdSMark Fasheh if (tmp < 0) { 1874ccd979bdSMark Fasheh mlog_errno(tmp); 1875ccd979bdSMark Fasheh return; 1876ccd979bdSMark Fasheh } 187719b613d4SMark Fasheh } 1878ccd979bdSMark Fasheh 1879ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1880ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1881ccd979bdSMark Fasheh 18824670c46dSJoel Becker if (osb->cconn) 1883ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1884ccd979bdSMark Fasheh 1885ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1886ccd979bdSMark Fasheh 18876953b4c0SJoel Becker /* 18886953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 18896953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 18906953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 18916953b4c0SJoel Becker * heartbeat. Otherwise, do it. 18926953b4c0SJoel Becker */ 18936953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1894286eaa95SJoel Becker hangup_needed = 1; 1895286eaa95SJoel Becker 1896286eaa95SJoel Becker if (osb->cconn) 1897286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1898286eaa95SJoel Becker 189973be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1900286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1901286eaa95SJoel Becker 1902286eaa95SJoel Becker if (hangup_needed) 19036953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1904ccd979bdSMark Fasheh 1905ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1906ccd979bdSMark Fasheh 1907c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1908c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1909c271c5c2SSunil Mushran else 191019fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1911c271c5c2SSunil Mushran 1912c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1913c271c5c2SSunil Mushran osb->dev_str, nodestr); 1914ccd979bdSMark Fasheh 1915ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1916ccd979bdSMark Fasheh kfree(osb); 1917ccd979bdSMark Fasheh sb->s_dev = 0; 1918ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1919ccd979bdSMark Fasheh } 1920ccd979bdSMark Fasheh 1921ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1922ccd979bdSMark Fasheh unsigned uuid_bytes) 1923ccd979bdSMark Fasheh { 1924ccd979bdSMark Fasheh int i, ret; 1925ccd979bdSMark Fasheh char *ptr; 1926ccd979bdSMark Fasheh 1927ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1928ccd979bdSMark Fasheh 1929cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1930ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1931ccd979bdSMark Fasheh return -ENOMEM; 1932ccd979bdSMark Fasheh 1933ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1934ccd979bdSMark Fasheh /* print with null */ 1935ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1936ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1937ccd979bdSMark Fasheh return -EINVAL; 1938ccd979bdSMark Fasheh /* then only advance past the last char */ 1939ccd979bdSMark Fasheh ptr += 2; 1940ccd979bdSMark Fasheh } 1941ccd979bdSMark Fasheh 1942ccd979bdSMark Fasheh return 0; 1943ccd979bdSMark Fasheh } 1944ccd979bdSMark Fasheh 1945ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1946ccd979bdSMark Fasheh struct buffer_head *bh, 194773be192bSJoel Becker int sector_size, 194873be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 1949ccd979bdSMark Fasheh { 1950bddb8eb3SDenis Cheng int status; 19515a254031SMark Fasheh int i, cbits, bbits; 19525a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 1953ccd979bdSMark Fasheh struct inode *inode = NULL; 1954ccd979bdSMark Fasheh struct ocfs2_journal *journal; 1955ccd979bdSMark Fasheh __le32 uuid_net_key; 1956ccd979bdSMark Fasheh struct ocfs2_super *osb; 1957ccd979bdSMark Fasheh 1958ccd979bdSMark Fasheh mlog_entry_void(); 1959ccd979bdSMark Fasheh 1960cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 1961ccd979bdSMark Fasheh if (!osb) { 1962ccd979bdSMark Fasheh status = -ENOMEM; 1963ccd979bdSMark Fasheh mlog_errno(status); 1964ccd979bdSMark Fasheh goto bail; 1965ccd979bdSMark Fasheh } 1966ccd979bdSMark Fasheh 1967ccd979bdSMark Fasheh sb->s_fs_info = osb; 1968ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 1969ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 197019ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 197119ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 1972cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 1973e0dceaf0SMark Fasheh sb->s_time_gran = 1; 1974ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 1975ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 19765a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 19775a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 19785a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 1979ccd979bdSMark Fasheh 19809b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 19819b7895efSMark Fasheh 19829b7895efSMark Fasheh for (i = 0; i < 3; i++) 19839b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 19849b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 19859b7895efSMark Fasheh 1986ccd979bdSMark Fasheh osb->sb = sb; 1987ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 1988ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 1989ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 1990ccd979bdSMark Fasheh 199134d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 199234d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 199334d024f8SMark Fasheh osb->dc_work_sequence = 0; 199434d024f8SMark Fasheh osb->dc_wake_sequence = 0; 1995ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 1996ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 1997ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 1998c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 19994d0ddb2cSTao Ma ocfs2_init_inode_steal_slot(osb); 2000ccd979bdSMark Fasheh 2001ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2002ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2003ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2004ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2005ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2006ccd979bdSMark Fasheh 200773be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 200873be192bSJoel Becker osb->osb_ecc_stats = *stats; 200973be192bSJoel Becker 2010ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2011ccd979bdSMark Fasheh 2012ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2013ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2014ccd979bdSMark Fasheh 20158b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 20168b712cd5SJeff Mahoney 2017553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2018553abd04SJoel Becker if (status) { 2019553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2020553abd04SJoel Becker mlog_errno(status); 2021553abd04SJoel Becker goto bail; 2022553abd04SJoel Becker } 2023ccd979bdSMark Fasheh 2024ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2025ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 2026ccd979bdSMark Fasheh 20277f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 20287f1a37e3STiger Yang 2029ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2030ccd979bdSMark Fasheh 20318154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 20328154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2033fdd77704STiger Yang 2034ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2035ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 20369c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2037ccd979bdSMark Fasheh 2038ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2039ccd979bdSMark Fasheh 2040ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2041ccd979bdSMark Fasheh if (!osb->vol_label) { 2042ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2043ccd979bdSMark Fasheh status = -ENOMEM; 2044ccd979bdSMark Fasheh goto bail; 2045ccd979bdSMark Fasheh } 2046ccd979bdSMark Fasheh 2047ccd979bdSMark Fasheh osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 2048ccd979bdSMark Fasheh if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 2049ccd979bdSMark Fasheh mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 2050ccd979bdSMark Fasheh osb->max_slots); 2051ccd979bdSMark Fasheh status = -EINVAL; 2052ccd979bdSMark Fasheh goto bail; 2053ccd979bdSMark Fasheh } 2054781ee3e2SSunil Mushran mlog(0, "max_slots for this device: %u\n", osb->max_slots); 2055ccd979bdSMark Fasheh 2056539d8264SSunil Mushran osb->slot_recovery_generations = 2057539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2058539d8264SSunil Mushran GFP_KERNEL); 2059539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2060539d8264SSunil Mushran status = -ENOMEM; 2061539d8264SSunil Mushran mlog_errno(status); 2062539d8264SSunil Mushran goto bail; 2063539d8264SSunil Mushran } 2064539d8264SSunil Mushran 2065b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2066b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2067b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2068b4df6ed8SMark Fasheh GFP_KERNEL); 2069b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2070b4df6ed8SMark Fasheh status = -ENOMEM; 2071b4df6ed8SMark Fasheh mlog_errno(status); 2072b4df6ed8SMark Fasheh goto bail; 2073b4df6ed8SMark Fasheh } 2074b4df6ed8SMark Fasheh 2075374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2076374a263eSTao Ma 2077ccd979bdSMark Fasheh osb->s_feature_compat = 2078ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2079ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2080ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2081ccd979bdSMark Fasheh osb->s_feature_incompat = 2082ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2083ccd979bdSMark Fasheh 2084ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2085ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2086ccd979bdSMark Fasheh "optional features (%x).\n", i); 2087ccd979bdSMark Fasheh status = -EINVAL; 2088ccd979bdSMark Fasheh goto bail; 2089ccd979bdSMark Fasheh } 2090ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2091ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2092ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2093ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2094ccd979bdSMark Fasheh status = -EINVAL; 2095ccd979bdSMark Fasheh goto bail; 2096ccd979bdSMark Fasheh } 2097ccd979bdSMark Fasheh 2098b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 2099b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2100b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2101b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2102b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2103b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2104b61817e1SJoel Becker mlog(ML_ERROR, 2105b61817e1SJoel Becker "couldn't mount because of an invalid " 2106b61817e1SJoel Becker "cluster stack label (%s) \n", 2107b61817e1SJoel Becker osb->osb_cluster_stack); 2108b61817e1SJoel Becker status = -EINVAL; 2109b61817e1SJoel Becker goto bail; 2110b61817e1SJoel Becker } 2111b61817e1SJoel Becker } else { 2112b61817e1SJoel Becker /* The empty string is identical with classic tools that 2113b61817e1SJoel Becker * don't know about s_cluster_info. */ 2114b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2115b61817e1SJoel Becker } 2116b61817e1SJoel Becker 2117ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2118ccd979bdSMark Fasheh 2119ccd979bdSMark Fasheh /* FIXME 2120ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2121ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2122ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2123ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2124ccd979bdSMark Fasheh * be my guest. 2125ccd979bdSMark Fasheh */ 2126ccd979bdSMark Fasheh /* initialize our journal structure */ 2127ccd979bdSMark Fasheh 2128cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2129ccd979bdSMark Fasheh if (!journal) { 2130ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2131ccd979bdSMark Fasheh status = -ENOMEM; 2132ccd979bdSMark Fasheh goto bail; 2133ccd979bdSMark Fasheh } 2134ccd979bdSMark Fasheh osb->journal = journal; 2135ccd979bdSMark Fasheh journal->j_osb = osb; 2136ccd979bdSMark Fasheh 2137ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2138ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2139ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2140ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2141ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2142ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2143c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2144ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2145ccd979bdSMark Fasheh 2146ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2147ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2148ea455f8aSJan Kara 2149ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2150ccd979bdSMark Fasheh osb->s_clustersize_bits = 2151ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2152ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2153ccd979bdSMark Fasheh mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); 2154ccd979bdSMark Fasheh 2155ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2156ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2157ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2158ccd979bdSMark Fasheh osb->s_clustersize); 2159ccd979bdSMark Fasheh status = -EINVAL; 2160ccd979bdSMark Fasheh goto bail; 2161ccd979bdSMark Fasheh } 2162ccd979bdSMark Fasheh 2163ccd979bdSMark Fasheh if (ocfs2_clusters_to_blocks(osb->sb, le32_to_cpu(di->i_clusters) - 1) 2164ccd979bdSMark Fasheh > (u32)~0UL) { 2165ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume might try to write to blocks beyond " 2166ccd979bdSMark Fasheh "what jbd can address in 32 bits.\n"); 2167ccd979bdSMark Fasheh status = -EINVAL; 2168ccd979bdSMark Fasheh goto bail; 2169ccd979bdSMark Fasheh } 2170ccd979bdSMark Fasheh 2171ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2172ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2173ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2174ccd979bdSMark Fasheh status = -ENOMEM; 2175ccd979bdSMark Fasheh goto bail; 2176ccd979bdSMark Fasheh } 2177ccd979bdSMark Fasheh 217878427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2179ccd979bdSMark Fasheh 2180ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2181ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2182ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2183ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2184ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2185ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2186ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2187cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 2188ccd979bdSMark Fasheh mlog(0, "vol_label: %s\n", osb->vol_label); 2189ccd979bdSMark Fasheh mlog(0, "uuid: %s\n", osb->uuid_str); 2190b0697053SMark Fasheh mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", 2191b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 2192b0697053SMark Fasheh (unsigned long long)osb->system_dir_blkno); 2193ccd979bdSMark Fasheh 2194ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2195ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2196ccd979bdSMark Fasheh status = -ENOMEM; 2197ccd979bdSMark Fasheh mlog_errno(status); 2198ccd979bdSMark Fasheh goto bail; 2199ccd979bdSMark Fasheh } 2200ccd979bdSMark Fasheh 2201ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2202ccd979bdSMark Fasheh 2203ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2204ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2205ccd979bdSMark Fasheh if (status < 0) { 2206ccd979bdSMark Fasheh mlog_errno(status); 2207ccd979bdSMark Fasheh goto bail; 2208ccd979bdSMark Fasheh } 2209ccd979bdSMark Fasheh 2210ccd979bdSMark Fasheh /* 2211ccd979bdSMark Fasheh * global bitmap 2212ccd979bdSMark Fasheh */ 2213ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2214ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2215ccd979bdSMark Fasheh if (!inode) { 2216ccd979bdSMark Fasheh status = -EINVAL; 2217ccd979bdSMark Fasheh mlog_errno(status); 2218ccd979bdSMark Fasheh goto bail; 2219ccd979bdSMark Fasheh } 2220ccd979bdSMark Fasheh 2221ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 2222ccd979bdSMark Fasheh iput(inode); 2223ccd979bdSMark Fasheh 2224e9d578a8STao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb) * 8; 2225ccd979bdSMark Fasheh 2226ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2227ccd979bdSMark Fasheh if (status < 0) { 2228ccd979bdSMark Fasheh mlog_errno(status); 2229ccd979bdSMark Fasheh goto bail; 2230ccd979bdSMark Fasheh } 2231ccd979bdSMark Fasheh 2232ccd979bdSMark Fasheh bail: 2233ccd979bdSMark Fasheh mlog_exit(status); 2234ccd979bdSMark Fasheh return status; 2235ccd979bdSMark Fasheh } 2236ccd979bdSMark Fasheh 2237ccd979bdSMark Fasheh /* 2238ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2239ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2240ccd979bdSMark Fasheh * 0 on success 2241ccd979bdSMark Fasheh */ 2242ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2243ccd979bdSMark Fasheh struct buffer_head *bh, 224473be192bSJoel Becker u32 blksz, 224573be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2246ccd979bdSMark Fasheh { 2247ccd979bdSMark Fasheh int status = -EAGAIN; 2248ccd979bdSMark Fasheh 2249ccd979bdSMark Fasheh mlog_entry_void(); 2250ccd979bdSMark Fasheh 2251ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2252ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2253d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2254d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2255d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2256d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2257d030cc97SJoel Becker bh->b_size, 225873be192bSJoel Becker &di->i_check, 225973be192bSJoel Becker stats); 2260d030cc97SJoel Becker if (status) 2261d030cc97SJoel Becker goto out; 2262d030cc97SJoel Becker } 2263ccd979bdSMark Fasheh status = -EINVAL; 2264ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2265ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2266ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2267ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2268ccd979bdSMark Fasheh blksz); 2269ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2270ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2271ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2272ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2273ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2274ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2275ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2276ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2277ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2278ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2279ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2280ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2281b0697053SMark Fasheh "found %llu, should be %llu\n", 22821ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2283b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2284ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2285ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2286ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2287ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2288ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2289ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2290ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2291ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2292ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2293ccd979bdSMark Fasheh mlog(ML_ERROR, 2294ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2295ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2296ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2297ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2298ccd979bdSMark Fasheh } else { 2299ccd979bdSMark Fasheh /* found it! */ 2300ccd979bdSMark Fasheh status = 0; 2301ccd979bdSMark Fasheh } 2302ccd979bdSMark Fasheh } 2303ccd979bdSMark Fasheh 2304d030cc97SJoel Becker out: 2305ccd979bdSMark Fasheh mlog_exit(status); 2306ccd979bdSMark Fasheh return status; 2307ccd979bdSMark Fasheh } 2308ccd979bdSMark Fasheh 2309ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2310ccd979bdSMark Fasheh { 2311bddb8eb3SDenis Cheng int status; 2312ccd979bdSMark Fasheh int dirty; 2313c271c5c2SSunil Mushran int local; 2314ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2315ccd979bdSMark Fasheh * recover 2316ccd979bdSMark Fasheh * ourselves. */ 2317ccd979bdSMark Fasheh 2318ccd979bdSMark Fasheh mlog_entry_void(); 2319ccd979bdSMark Fasheh 2320ccd979bdSMark Fasheh /* Init our journal object. */ 2321ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2322ccd979bdSMark Fasheh if (status < 0) { 2323ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2324ccd979bdSMark Fasheh goto finally; 2325ccd979bdSMark Fasheh } 2326ccd979bdSMark Fasheh 2327ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2328ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2329ccd979bdSMark Fasheh * dirty work for us :) */ 2330ccd979bdSMark Fasheh if (!dirty) { 2331ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2332ccd979bdSMark Fasheh if (status < 0) { 2333ccd979bdSMark Fasheh mlog_errno(status); 2334ccd979bdSMark Fasheh goto finally; 2335ccd979bdSMark Fasheh } 2336ccd979bdSMark Fasheh } else { 2337ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2338ccd979bdSMark Fasheh "recovering volume.\n"); 2339ccd979bdSMark Fasheh } 2340ccd979bdSMark Fasheh 2341c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2342c271c5c2SSunil Mushran 2343ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2344539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 234501af4820SWengang Wang if (status < 0) { 234601af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 234701af4820SWengang Wang goto finally; 234801af4820SWengang Wang } 2349ccd979bdSMark Fasheh 2350ccd979bdSMark Fasheh if (dirty) { 2351ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2352ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2353ccd979bdSMark Fasheh osb->slot_num, 2354ccd979bdSMark Fasheh &local_alloc); 2355ccd979bdSMark Fasheh if (status < 0) { 2356ccd979bdSMark Fasheh mlog_errno(status); 2357ccd979bdSMark Fasheh goto finally; 2358ccd979bdSMark Fasheh } 2359ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2360ccd979bdSMark Fasheh * ourselves as mounted. */ 2361ccd979bdSMark Fasheh } 2362ccd979bdSMark Fasheh 2363ccd979bdSMark Fasheh mlog(0, "Journal loaded.\n"); 2364ccd979bdSMark Fasheh 2365ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2366ccd979bdSMark Fasheh if (status < 0) { 2367ccd979bdSMark Fasheh mlog_errno(status); 2368ccd979bdSMark Fasheh goto finally; 2369ccd979bdSMark Fasheh } 2370ccd979bdSMark Fasheh 2371ccd979bdSMark Fasheh if (dirty) { 2372ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2373ccd979bdSMark Fasheh * rest of the volume. */ 2374ccd979bdSMark Fasheh osb->dirty = 1; 2375ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2376ccd979bdSMark Fasheh local_alloc = NULL; 2377ccd979bdSMark Fasheh } 2378ccd979bdSMark Fasheh 2379ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2380ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2381ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2382ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 23839140db04SSrinivas Eeda if (status < 0) { 23849140db04SSrinivas Eeda mlog_errno(status); 23859140db04SSrinivas Eeda goto finally; 23869140db04SSrinivas Eeda } 23879140db04SSrinivas Eeda 23889140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2389ccd979bdSMark Fasheh if (status < 0) 2390ccd979bdSMark Fasheh mlog_errno(status); 2391ccd979bdSMark Fasheh 2392ccd979bdSMark Fasheh finally: 2393ccd979bdSMark Fasheh if (local_alloc) 2394ccd979bdSMark Fasheh kfree(local_alloc); 2395ccd979bdSMark Fasheh 2396ccd979bdSMark Fasheh mlog_exit(status); 2397ccd979bdSMark Fasheh return status; 2398ccd979bdSMark Fasheh } 2399ccd979bdSMark Fasheh 2400ccd979bdSMark Fasheh /* 2401ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2402ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2403ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2404ccd979bdSMark Fasheh * initialized resources and fileobject. 2405ccd979bdSMark Fasheh */ 2406ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2407ccd979bdSMark Fasheh { 2408ccd979bdSMark Fasheh mlog_entry_void(); 2409ccd979bdSMark Fasheh 2410ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2411ccd979bdSMark Fasheh 24128e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2413ccd979bdSMark Fasheh 2414b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2415539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2416ccd979bdSMark Fasheh /* FIXME 2417ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2418ccd979bdSMark Fasheh * allocate osb->journal at the start of ocfs2_initalize_osb(), 2419ccd979bdSMark Fasheh * we free it here. 2420ccd979bdSMark Fasheh */ 2421ccd979bdSMark Fasheh kfree(osb->journal); 2422ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2423ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2424ccd979bdSMark Fasheh kfree(osb->uuid_str); 2425ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2426ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2427ccd979bdSMark Fasheh 2428ccd979bdSMark Fasheh mlog_exit_void(); 2429ccd979bdSMark Fasheh } 2430ccd979bdSMark Fasheh 2431ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2432ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2433ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2434ccd979bdSMark Fasheh { 2435ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2436ccd979bdSMark Fasheh 2437ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2438ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2439ccd979bdSMark Fasheh sb->s_id); 2440ccd979bdSMark Fasheh 2441ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2442ccd979bdSMark Fasheh 2443ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2444ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2445ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2446ccd979bdSMark Fasheh return; 2447ccd979bdSMark Fasheh 2448ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2449ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2450ccd979bdSMark Fasheh "system is unmounted.\n"); 2451ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2452ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2453ccd979bdSMark Fasheh } 2454ccd979bdSMark Fasheh 2455ccd979bdSMark Fasheh static char error_buf[1024]; 2456ccd979bdSMark Fasheh 2457ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2458ccd979bdSMark Fasheh const char *function, 2459ccd979bdSMark Fasheh const char *fmt, ...) 2460ccd979bdSMark Fasheh { 2461ccd979bdSMark Fasheh va_list args; 2462ccd979bdSMark Fasheh 2463ccd979bdSMark Fasheh va_start(args, fmt); 24644a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2465ccd979bdSMark Fasheh va_end(args); 2466ccd979bdSMark Fasheh 2467ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2468ccd979bdSMark Fasheh * function the error came from. */ 2469ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2470ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2471ccd979bdSMark Fasheh 2472ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2473ccd979bdSMark Fasheh } 2474ccd979bdSMark Fasheh 2475ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2476ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2477ccd979bdSMark Fasheh * etc. */ 2478ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2479ccd979bdSMark Fasheh const char *function, 2480ccd979bdSMark Fasheh const char *fmt, ...) 2481ccd979bdSMark Fasheh { 2482ccd979bdSMark Fasheh va_list args; 2483ccd979bdSMark Fasheh 2484ccd979bdSMark Fasheh va_start(args, fmt); 24854a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2486ccd979bdSMark Fasheh va_end(args); 2487ccd979bdSMark Fasheh 2488ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2489ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2490ccd979bdSMark Fasheh 2491ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2492ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2493ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2494ccd979bdSMark Fasheh * errors. 2495ccd979bdSMark Fasheh * 2496ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2497ccd979bdSMark Fasheh * that our slot needs recovery. */ 2498ccd979bdSMark Fasheh 2499ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2500ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2501ccd979bdSMark Fasheh * here. */ 2502a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2503ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2504ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2505ccd979bdSMark Fasheh } 2506ccd979bdSMark Fasheh 2507ccd979bdSMark Fasheh module_init(ocfs2_init); 2508ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2509