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/utsname.h> 32ccd979bdSMark Fasheh #include <linux/init.h> 33ccd979bdSMark Fasheh #include <linux/random.h> 34ccd979bdSMark Fasheh #include <linux/statfs.h> 35ccd979bdSMark Fasheh #include <linux/moduleparam.h> 36ccd979bdSMark Fasheh #include <linux/blkdev.h> 37ccd979bdSMark Fasheh #include <linux/socket.h> 38ccd979bdSMark Fasheh #include <linux/inet.h> 39ccd979bdSMark Fasheh #include <linux/parser.h> 40ccd979bdSMark Fasheh #include <linux/crc32.h> 41ccd979bdSMark Fasheh #include <linux/debugfs.h> 42d550071cSSunil Mushran #include <linux/mount.h> 436953b4c0SJoel Becker #include <linux/seq_file.h> 4419ece546SJan Kara #include <linux/quotaops.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" 71ccd979bdSMark Fasheh 72ccd979bdSMark Fasheh #include "buffer_head_io.h" 73ccd979bdSMark Fasheh 74e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 759e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 769e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 77ccd979bdSMark Fasheh 78ccd979bdSMark Fasheh /* OCFS2 needs to schedule several differnt types of work which 79ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 80ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 81ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 82ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 83ccd979bdSMark Fasheh 84ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 85ccd979bdSMark Fasheh 86ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 87ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 88ccd979bdSMark Fasheh 89c0123adeSTiger Yang struct mount_options 90c0123adeSTiger Yang { 91d147b3d6SMark Fasheh unsigned long commit_interval; 92c0123adeSTiger Yang unsigned long mount_opt; 93c0123adeSTiger Yang unsigned int atime_quantum; 94c0123adeSTiger Yang signed short slot; 952fbe8d1eSSunil Mushran unsigned int localalloc_opt; 96b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 97c0123adeSTiger Yang }; 98c0123adeSTiger Yang 99ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 100c0123adeSTiger Yang struct mount_options *mopt, 101baf4661aSSunil Mushran int is_remount); 102d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 103ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 104ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 105ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 106ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 107ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 108ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 109ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 110ccd979bdSMark Fasheh 111726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 112ccd979bdSMark Fasheh 113ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 114ccd979bdSMark Fasheh 115ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 116ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 117bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 118ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 119ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 120ccd979bdSMark Fasheh struct buffer_head *bh, 12173be192bSJoel Becker u32 sectsize, 12273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 123ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 124ccd979bdSMark Fasheh struct buffer_head *bh, 12573be192bSJoel Becker int sector_size, 12673be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 127ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 128ccd979bdSMark Fasheh struct buffer_head **bh, 129ccd979bdSMark Fasheh int block, 130ccd979bdSMark Fasheh int sect_size); 131ccd979bdSMark Fasheh static void ocfs2_write_super(struct super_block *sb); 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 .write_super = ocfs2_write_super, 147ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 148ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 149d550071cSSunil Mushran .show_options = ocfs2_show_options, 1509e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1519e33d69fSJan Kara .quota_write = ocfs2_quota_write, 152ccd979bdSMark Fasheh }; 153ccd979bdSMark Fasheh 154ccd979bdSMark Fasheh enum { 155ccd979bdSMark Fasheh Opt_barrier, 156ccd979bdSMark Fasheh Opt_err_panic, 157ccd979bdSMark Fasheh Opt_err_ro, 158ccd979bdSMark Fasheh Opt_intr, 159ccd979bdSMark Fasheh Opt_nointr, 160ccd979bdSMark Fasheh Opt_hb_none, 161ccd979bdSMark Fasheh Opt_hb_local, 162ccd979bdSMark Fasheh Opt_data_ordered, 163ccd979bdSMark Fasheh Opt_data_writeback, 1647f1a37e3STiger Yang Opt_atime_quantum, 165baf4661aSSunil Mushran Opt_slot, 166d147b3d6SMark Fasheh Opt_commit, 1672fbe8d1eSSunil Mushran Opt_localalloc, 16853fc622bSMark Fasheh Opt_localflocks, 169b61817e1SJoel Becker Opt_stack, 170cf1d6c76STiger Yang Opt_user_xattr, 171cf1d6c76STiger Yang Opt_nouser_xattr, 17212462f1dSJoel Becker Opt_inode64, 173a68979b8STiger Yang Opt_acl, 174a68979b8STiger Yang Opt_noacl, 17519ece546SJan Kara Opt_usrquota, 17619ece546SJan Kara Opt_grpquota, 177ccd979bdSMark Fasheh Opt_err, 178ccd979bdSMark Fasheh }; 179ccd979bdSMark Fasheh 180a447c093SSteven Whitehouse static const match_table_t tokens = { 181ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 182ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 183ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 184ccd979bdSMark Fasheh {Opt_intr, "intr"}, 185ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 186ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 187ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 188ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 189ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1907f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 191baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 192d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1932fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19453fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 195b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 196cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 197cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 19812462f1dSJoel Becker {Opt_inode64, "inode64"}, 199a68979b8STiger Yang {Opt_acl, "acl"}, 200a68979b8STiger Yang {Opt_noacl, "noacl"}, 20119ece546SJan Kara {Opt_usrquota, "usrquota"}, 20219ece546SJan Kara {Opt_grpquota, "grpquota"}, 203ccd979bdSMark Fasheh {Opt_err, NULL} 204ccd979bdSMark Fasheh }; 205ccd979bdSMark Fasheh 20650397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 20750397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 20850397507SSunil Mushran { 20950397507SSunil Mushran int out = 0; 21050397507SSunil Mushran int i; 21150397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 21250397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 21315633a22SSrinivas Eeda struct ocfs2_orphan_scan *os; 21450397507SSunil Mushran 21550397507SSunil Mushran out += snprintf(buf + out, len - out, 21650397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 21750397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 21850397507SSunil Mushran osb->fs_generation, osb->vol_label); 21950397507SSunil Mushran 22050397507SSunil Mushran out += snprintf(buf + out, len - out, 22150397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 22250397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 22350397507SSunil Mushran 22450397507SSunil Mushran out += snprintf(buf + out, len - out, 22550397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 22650397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 22750397507SSunil Mushran 22850397507SSunil Mushran out += snprintf(buf + out, len - out, 22950397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 23050397507SSunil Mushran "ROcompat: 0x%X\n", 23150397507SSunil Mushran "Features", osb->s_feature_compat, 23250397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 23350397507SSunil Mushran 23450397507SSunil Mushran out += snprintf(buf + out, len - out, 23550397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 23650397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 23750397507SSunil Mushran 23850397507SSunil Mushran out += snprintf(buf + out, len - out, 23950397507SSunil Mushran "%10s => Stack: %s Name: %*s Version: %d.%d\n", 24050397507SSunil Mushran "Cluster", 24150397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 24250397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 24350397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 24450397507SSunil Mushran cconn->cc_version.pv_major, cconn->cc_version.pv_minor); 24550397507SSunil Mushran 24650397507SSunil Mushran spin_lock(&osb->dc_task_lock); 24750397507SSunil Mushran out += snprintf(buf + out, len - out, 24850397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 24950397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 25050397507SSunil Mushran task_pid_nr(osb->dc_task), osb->blocked_lock_count, 25150397507SSunil Mushran osb->dc_wake_sequence, osb->dc_work_sequence); 25250397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 25350397507SSunil Mushran 25450397507SSunil Mushran spin_lock(&osb->osb_lock); 25550397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 25650397507SSunil Mushran "Recovery", 25750397507SSunil Mushran (osb->recovery_thread_task ? 25850397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 25950397507SSunil Mushran if (rm->rm_used == 0) 26050397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 26150397507SSunil Mushran else { 26250397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 26350397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 26450397507SSunil Mushran rm->rm_entries[i]); 26550397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 26650397507SSunil Mushran } 26750397507SSunil Mushran spin_unlock(&osb->osb_lock); 26850397507SSunil Mushran 26950397507SSunil Mushran out += snprintf(buf + out, len - out, 27050397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 27150397507SSunil Mushran task_pid_nr(osb->commit_task), osb->osb_commit_interval, 27250397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 27350397507SSunil Mushran 27450397507SSunil Mushran out += snprintf(buf + out, len - out, 27550397507SSunil Mushran "%10s => State: %d NumTxns: %d TxnId: %lu\n", 27650397507SSunil Mushran "Journal", osb->journal->j_state, 27750397507SSunil Mushran atomic_read(&osb->journal->j_num_trans), 27850397507SSunil Mushran osb->journal->j_trans_id); 27950397507SSunil Mushran 28050397507SSunil Mushran out += snprintf(buf + out, len - out, 28150397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 28250397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 28350397507SSunil Mushran "Stats", 28450397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 28550397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 28650397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 28750397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 28850397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 28950397507SSunil Mushran 29050397507SSunil Mushran out += snprintf(buf + out, len - out, 29150397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 29250397507SSunil Mushran "Default: %u bits\n", 29350397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 29450397507SSunil Mushran (unsigned long long)osb->la_last_gd, 29550397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 29650397507SSunil Mushran 29750397507SSunil Mushran spin_lock(&osb->osb_lock); 29850397507SSunil Mushran out += snprintf(buf + out, len - out, 29950397507SSunil Mushran "%10s => Slot: %d NumStolen: %d\n", "Steal", 30050397507SSunil Mushran osb->s_inode_steal_slot, 30150397507SSunil Mushran atomic_read(&osb->s_num_inodes_stolen)); 30250397507SSunil Mushran spin_unlock(&osb->osb_lock); 30350397507SSunil Mushran 30450397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 30550397507SSunil Mushran "Slots", "Num", "RecoGen"); 30650397507SSunil Mushran 30750397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 30850397507SSunil Mushran out += snprintf(buf + out, len - out, 30950397507SSunil Mushran "%10s %c %3d %10d\n", 31050397507SSunil Mushran " ", 31150397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 31250397507SSunil Mushran i, osb->slot_recovery_generations[i]); 31350397507SSunil Mushran } 31450397507SSunil Mushran 31515633a22SSrinivas Eeda os = &osb->osb_orphan_scan; 31615633a22SSrinivas Eeda out += snprintf(buf + out, len - out, "Orphan Scan=> "); 31715633a22SSrinivas Eeda out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 31815633a22SSrinivas Eeda os->os_count, os->os_seqno); 31915633a22SSrinivas Eeda out += snprintf(buf + out, len - out, " Last Scan: %lu seconds ago\n", 32015633a22SSrinivas Eeda (get_seconds() - os->os_scantime.tv_sec)); 32115633a22SSrinivas Eeda 32250397507SSunil Mushran return out; 32350397507SSunil Mushran } 32450397507SSunil Mushran 32550397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 32650397507SSunil Mushran { 32750397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 32850397507SSunil Mushran char *buf = NULL; 32950397507SSunil Mushran 33050397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 33150397507SSunil Mushran if (!buf) 33250397507SSunil Mushran goto bail; 33350397507SSunil Mushran 33450397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 33550397507SSunil Mushran 33650397507SSunil Mushran file->private_data = buf; 33750397507SSunil Mushran 33850397507SSunil Mushran return 0; 33950397507SSunil Mushran bail: 34050397507SSunil Mushran return -ENOMEM; 34150397507SSunil Mushran } 34250397507SSunil Mushran 34350397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 34450397507SSunil Mushran { 34550397507SSunil Mushran kfree(file->private_data); 34650397507SSunil Mushran return 0; 34750397507SSunil Mushran } 34850397507SSunil Mushran 34950397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 35050397507SSunil Mushran size_t nbytes, loff_t *ppos) 35150397507SSunil Mushran { 35250397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 35350397507SSunil Mushran i_size_read(file->f_mapping->host)); 35450397507SSunil Mushran } 35550397507SSunil Mushran #else 35650397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 35750397507SSunil Mushran { 35850397507SSunil Mushran return 0; 35950397507SSunil Mushran } 36050397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36150397507SSunil Mushran { 36250397507SSunil Mushran return 0; 36350397507SSunil Mushran } 36450397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 36550397507SSunil Mushran size_t nbytes, loff_t *ppos) 36650397507SSunil Mushran { 36750397507SSunil Mushran return 0; 36850397507SSunil Mushran } 36950397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 37050397507SSunil Mushran 37150397507SSunil Mushran static struct file_operations ocfs2_osb_debug_fops = { 37250397507SSunil Mushran .open = ocfs2_osb_debug_open, 37350397507SSunil Mushran .release = ocfs2_debug_release, 37450397507SSunil Mushran .read = ocfs2_debug_read, 37550397507SSunil Mushran .llseek = generic_file_llseek, 37650397507SSunil Mushran }; 37750397507SSunil Mushran 378ccd979bdSMark Fasheh /* 379ccd979bdSMark Fasheh * write_super and sync_fs ripped right out of ext3. 380ccd979bdSMark Fasheh */ 381ccd979bdSMark Fasheh static void ocfs2_write_super(struct super_block *sb) 382ccd979bdSMark Fasheh { 3837892f2f4SIngo Molnar if (mutex_trylock(&sb->s_lock) != 0) 384ccd979bdSMark Fasheh BUG(); 385ccd979bdSMark Fasheh sb->s_dirt = 0; 386ccd979bdSMark Fasheh } 387ccd979bdSMark Fasheh 388ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 389ccd979bdSMark Fasheh { 390bddb8eb3SDenis Cheng int status; 391ccd979bdSMark Fasheh tid_t target; 392ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 393ccd979bdSMark Fasheh 394ccd979bdSMark Fasheh sb->s_dirt = 0; 395ccd979bdSMark Fasheh 396ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 397ccd979bdSMark Fasheh return -EROFS; 398ccd979bdSMark Fasheh 399ccd979bdSMark Fasheh if (wait) { 400ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 401ccd979bdSMark Fasheh if (status < 0) 402ccd979bdSMark Fasheh mlog_errno(status); 403ccd979bdSMark Fasheh } else { 404ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 405ccd979bdSMark Fasheh } 406ccd979bdSMark Fasheh 4072b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 4082b4e30fbSJoel Becker &target)) { 409ccd979bdSMark Fasheh if (wait) 4102b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 411ccd979bdSMark Fasheh target); 412ccd979bdSMark Fasheh } 413ccd979bdSMark Fasheh return 0; 414ccd979bdSMark Fasheh } 415ccd979bdSMark Fasheh 4161a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4171a224ad1SJan Kara { 4181a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4191a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4201a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4211a224ad1SJan Kara return 0; 4221a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4231a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4241a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4251a224ad1SJan Kara return 0; 4261a224ad1SJan Kara return 1; 4271a224ad1SJan Kara } 4281a224ad1SJan Kara 429ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 430ccd979bdSMark Fasheh { 431ccd979bdSMark Fasheh struct inode *new = NULL; 432ccd979bdSMark Fasheh int status = 0; 433ccd979bdSMark Fasheh int i; 434ccd979bdSMark Fasheh 435ccd979bdSMark Fasheh mlog_entry_void(); 436ccd979bdSMark Fasheh 4375fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 438ccd979bdSMark Fasheh if (IS_ERR(new)) { 439ccd979bdSMark Fasheh status = PTR_ERR(new); 440ccd979bdSMark Fasheh mlog_errno(status); 441ccd979bdSMark Fasheh goto bail; 442ccd979bdSMark Fasheh } 443ccd979bdSMark Fasheh osb->root_inode = new; 444ccd979bdSMark Fasheh 4455fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 446ccd979bdSMark Fasheh if (IS_ERR(new)) { 447ccd979bdSMark Fasheh status = PTR_ERR(new); 448ccd979bdSMark Fasheh mlog_errno(status); 449ccd979bdSMark Fasheh goto bail; 450ccd979bdSMark Fasheh } 451ccd979bdSMark Fasheh osb->sys_root_inode = new; 452ccd979bdSMark Fasheh 453ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 454ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4551a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4561a224ad1SJan Kara continue; 457ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 458ccd979bdSMark Fasheh if (!new) { 459ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 460ccd979bdSMark Fasheh status = -EINVAL; 461ccd979bdSMark Fasheh mlog_errno(status); 462ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 463ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 464ccd979bdSMark Fasheh "possibly corrupt fs?", i); 465ccd979bdSMark Fasheh goto bail; 466ccd979bdSMark Fasheh } 467ccd979bdSMark Fasheh // the array now has one ref, so drop this one 468ccd979bdSMark Fasheh iput(new); 469ccd979bdSMark Fasheh } 470ccd979bdSMark Fasheh 471ccd979bdSMark Fasheh bail: 472ccd979bdSMark Fasheh mlog_exit(status); 473ccd979bdSMark Fasheh return status; 474ccd979bdSMark Fasheh } 475ccd979bdSMark Fasheh 476ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 477ccd979bdSMark Fasheh { 478ccd979bdSMark Fasheh struct inode *new = NULL; 479ccd979bdSMark Fasheh int status = 0; 480ccd979bdSMark Fasheh int i; 481ccd979bdSMark Fasheh 482ccd979bdSMark Fasheh mlog_entry_void(); 483ccd979bdSMark Fasheh 484ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 485ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 486ccd979bdSMark Fasheh i++) { 4871a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4881a224ad1SJan Kara continue; 489ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 490ccd979bdSMark Fasheh if (!new) { 491ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 492ccd979bdSMark Fasheh status = -EINVAL; 493ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 494ccd979bdSMark Fasheh status, i, osb->slot_num); 495ccd979bdSMark Fasheh goto bail; 496ccd979bdSMark Fasheh } 497ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 498ccd979bdSMark Fasheh iput(new); 499ccd979bdSMark Fasheh } 500ccd979bdSMark Fasheh 501ccd979bdSMark Fasheh bail: 502ccd979bdSMark Fasheh mlog_exit(status); 503ccd979bdSMark Fasheh return status; 504ccd979bdSMark Fasheh } 505ccd979bdSMark Fasheh 506bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 507ccd979bdSMark Fasheh { 508bddb8eb3SDenis Cheng int i; 509ccd979bdSMark Fasheh struct inode *inode; 510ccd979bdSMark Fasheh 511ccd979bdSMark Fasheh mlog_entry_void(); 512ccd979bdSMark Fasheh 513ccd979bdSMark Fasheh for (i = 0; i < NUM_SYSTEM_INODES; i++) { 514ccd979bdSMark Fasheh inode = osb->system_inodes[i]; 515ccd979bdSMark Fasheh if (inode) { 516ccd979bdSMark Fasheh iput(inode); 517ccd979bdSMark Fasheh osb->system_inodes[i] = NULL; 518ccd979bdSMark Fasheh } 519ccd979bdSMark Fasheh } 520ccd979bdSMark Fasheh 521ccd979bdSMark Fasheh inode = osb->sys_root_inode; 522ccd979bdSMark Fasheh if (inode) { 523ccd979bdSMark Fasheh iput(inode); 524ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 525ccd979bdSMark Fasheh } 526ccd979bdSMark Fasheh 527ccd979bdSMark Fasheh inode = osb->root_inode; 528ccd979bdSMark Fasheh if (inode) { 529ccd979bdSMark Fasheh iput(inode); 530ccd979bdSMark Fasheh osb->root_inode = NULL; 531ccd979bdSMark Fasheh } 532ccd979bdSMark Fasheh 533bddb8eb3SDenis Cheng mlog_exit(0); 534ccd979bdSMark Fasheh } 535ccd979bdSMark Fasheh 536ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 537ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 538ccd979bdSMark Fasheh { 539ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 540ccd979bdSMark Fasheh 541e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 542ccd979bdSMark Fasheh if (!oi) 543ccd979bdSMark Fasheh return NULL; 544ccd979bdSMark Fasheh 5452b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 546ccd979bdSMark Fasheh return &oi->vfs_inode; 547ccd979bdSMark Fasheh } 548ccd979bdSMark Fasheh 549ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 550ccd979bdSMark Fasheh { 551ccd979bdSMark Fasheh kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 552ccd979bdSMark Fasheh } 553ccd979bdSMark Fasheh 5545a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5555a254031SMark Fasheh unsigned int cbits) 556ccd979bdSMark Fasheh { 5575a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5585a254031SMark Fasheh unsigned int trim = bytes; 5595a254031SMark Fasheh unsigned int bitshift = 32; 560ccd979bdSMark Fasheh 5615a254031SMark Fasheh /* 5625a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5635a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5645a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 565ccd979bdSMark Fasheh */ 566ccd979bdSMark Fasheh 567ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 568ccd979bdSMark Fasheh # if defined(CONFIG_LBD) 5692ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5705a254031SMark Fasheh /* 5715a254031SMark Fasheh * We might be limited by page cache size. 5725a254031SMark Fasheh */ 5735a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 5745a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 5755a254031SMark Fasheh trim = 1; 5765a254031SMark Fasheh /* 5775a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5785a254031SMark Fasheh * MAX_LFS_FILESIZE 5795a254031SMark Fasheh */ 5805a254031SMark Fasheh bitshift = 31; 5815a254031SMark Fasheh } 582ccd979bdSMark Fasheh # else 5835a254031SMark Fasheh /* 5845a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 5855a254031SMark Fasheh * that's what we expose to the VFS. 5865a254031SMark Fasheh */ 5875a254031SMark Fasheh bytes = 1 << bbits; 5885a254031SMark Fasheh trim = 1; 5895a254031SMark Fasheh bitshift = 31; 590ccd979bdSMark Fasheh # endif 591ccd979bdSMark Fasheh #endif 592ccd979bdSMark Fasheh 5935a254031SMark Fasheh /* 5945a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 5955a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 5965a254031SMark Fasheh * an extent start is at the max offset. 5975a254031SMark Fasheh */ 5985a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 599ccd979bdSMark Fasheh } 600ccd979bdSMark Fasheh 601ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 602ccd979bdSMark Fasheh { 603ccd979bdSMark Fasheh int incompat_features; 604ccd979bdSMark Fasheh int ret = 0; 605c0123adeSTiger Yang struct mount_options parsed_options; 606ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 607ccd979bdSMark Fasheh 608c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 1)) { 609ccd979bdSMark Fasheh ret = -EINVAL; 610ccd979bdSMark Fasheh goto out; 611ccd979bdSMark Fasheh } 612ccd979bdSMark Fasheh 613ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != 614c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 615ccd979bdSMark Fasheh ret = -EINVAL; 616ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 617ccd979bdSMark Fasheh goto out; 618ccd979bdSMark Fasheh } 619ccd979bdSMark Fasheh 620ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 621c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 622ccd979bdSMark Fasheh ret = -EINVAL; 623ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 624ccd979bdSMark Fasheh goto out; 625ccd979bdSMark Fasheh } 626ccd979bdSMark Fasheh 62712462f1dSJoel Becker /* Probably don't want this on remount; it might 62812462f1dSJoel Becker * mess with other nodes */ 62912462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 63012462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 63112462f1dSJoel Becker ret = -EINVAL; 63212462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 63312462f1dSJoel Becker goto out; 63412462f1dSJoel Becker } 63512462f1dSJoel Becker 636ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 637ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 63819ece546SJan Kara /* Disable quota accounting before remounting RO */ 63919ece546SJan Kara if (*flags & MS_RDONLY) { 64019ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 64119ece546SJan Kara if (ret < 0) 64219ece546SJan Kara goto out; 64319ece546SJan Kara } 644ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 645ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 646ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 647ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 648ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 649ccd979bdSMark Fasheh ret = -EROFS; 650ccd979bdSMark Fasheh goto unlock_osb; 651ccd979bdSMark Fasheh } 652ccd979bdSMark Fasheh 653ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 654ccd979bdSMark Fasheh mlog(0, "Going to ro mode.\n"); 655ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 656ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 657ccd979bdSMark Fasheh } else { 658ccd979bdSMark Fasheh mlog(0, "Making ro filesystem writeable.\n"); 659ccd979bdSMark Fasheh 660ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 661ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 662ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 663ccd979bdSMark Fasheh ret = -EROFS; 664ccd979bdSMark Fasheh goto unlock_osb; 665ccd979bdSMark Fasheh } 666ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 667ccd979bdSMark Fasheh if (incompat_features) { 668ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 669ccd979bdSMark Fasheh "of unsupported optional features " 670ccd979bdSMark Fasheh "(%x).\n", incompat_features); 671ccd979bdSMark Fasheh ret = -EINVAL; 672ccd979bdSMark Fasheh goto unlock_osb; 673ccd979bdSMark Fasheh } 674ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 675ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 676ccd979bdSMark Fasheh } 677ccd979bdSMark Fasheh unlock_osb: 678ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 67919ece546SJan Kara /* Enable quota accounting after remounting RW */ 68019ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 68119ece546SJan Kara if (sb_any_quota_suspended(sb)) 68219ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 68319ece546SJan Kara else 68419ece546SJan Kara ret = ocfs2_enable_quotas(osb); 68519ece546SJan Kara if (ret < 0) { 68619ece546SJan Kara /* Return back changes... */ 68719ece546SJan Kara spin_lock(&osb->osb_lock); 68819ece546SJan Kara sb->s_flags |= MS_RDONLY; 68919ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 69019ece546SJan Kara spin_unlock(&osb->osb_lock); 69119ece546SJan Kara goto out; 69219ece546SJan Kara } 69319ece546SJan Kara } 694ccd979bdSMark Fasheh } 695ccd979bdSMark Fasheh 696ccd979bdSMark Fasheh if (!ret) { 697ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 698ccd979bdSMark Fasheh * remount. */ 699a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 700a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 701c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 702c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 703c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 704d147b3d6SMark Fasheh if (parsed_options.commit_interval) 705d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 706e001e796SMark Fasheh 707e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 708e001e796SMark Fasheh ocfs2_set_journal_params(osb); 709ccd979bdSMark Fasheh } 710ccd979bdSMark Fasheh out: 711ccd979bdSMark Fasheh return ret; 712ccd979bdSMark Fasheh } 713ccd979bdSMark Fasheh 714ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 715ccd979bdSMark Fasheh struct buffer_head **bh, 71673be192bSJoel Becker int *sector_size, 71773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 718ccd979bdSMark Fasheh { 719bddb8eb3SDenis Cheng int status, tmpstat; 720ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 721ccd979bdSMark Fasheh struct ocfs2_dinode *di; 722ccd979bdSMark Fasheh int blksize; 723ccd979bdSMark Fasheh 724ccd979bdSMark Fasheh *bh = NULL; 725ccd979bdSMark Fasheh 726ccd979bdSMark Fasheh /* may be > 512 */ 727ccd979bdSMark Fasheh *sector_size = bdev_hardsect_size(sb->s_bdev); 728ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 729ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 730ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 731ccd979bdSMark Fasheh status = -EINVAL; 732ccd979bdSMark Fasheh goto bail; 733ccd979bdSMark Fasheh } 734ccd979bdSMark Fasheh 735ccd979bdSMark Fasheh /* Can this really happen? */ 736ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 737ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 738ccd979bdSMark Fasheh 739ccd979bdSMark Fasheh /* check block zero for old format */ 740ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 741ccd979bdSMark Fasheh if (status < 0) { 742ccd979bdSMark Fasheh mlog_errno(status); 743ccd979bdSMark Fasheh goto bail; 744ccd979bdSMark Fasheh } 745ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 746ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 747ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 748ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 749ccd979bdSMark Fasheh status = -EINVAL; 750ccd979bdSMark Fasheh } 751ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 752ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 753ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 754ccd979bdSMark Fasheh hdr->signature); 755ccd979bdSMark Fasheh status = -EINVAL; 756ccd979bdSMark Fasheh } 757ccd979bdSMark Fasheh brelse(*bh); 758ccd979bdSMark Fasheh *bh = NULL; 759ccd979bdSMark Fasheh if (status < 0) { 760ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 761ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 762ccd979bdSMark Fasheh goto bail; 763ccd979bdSMark Fasheh } 764ccd979bdSMark Fasheh 765ccd979bdSMark Fasheh /* 766ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 767ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 768ccd979bdSMark Fasheh * the minimum clustersize. 769ccd979bdSMark Fasheh */ 770ccd979bdSMark Fasheh status = -EINVAL; 771ccd979bdSMark Fasheh for (blksize = *sector_size; 772ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 773ccd979bdSMark Fasheh blksize <<= 1) { 774ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 775ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 776ccd979bdSMark Fasheh blksize); 777ccd979bdSMark Fasheh if (tmpstat < 0) { 778ccd979bdSMark Fasheh status = tmpstat; 779ccd979bdSMark Fasheh mlog_errno(status); 780ccd979bdSMark Fasheh goto bail; 781ccd979bdSMark Fasheh } 782ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 78373be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 78473be192bSJoel Becker status = ocfs2_verify_volume(di, *bh, blksize, stats); 785ccd979bdSMark Fasheh if (status >= 0) 786ccd979bdSMark Fasheh goto bail; 787ccd979bdSMark Fasheh brelse(*bh); 788ccd979bdSMark Fasheh *bh = NULL; 789ccd979bdSMark Fasheh if (status != -EAGAIN) 790ccd979bdSMark Fasheh break; 791ccd979bdSMark Fasheh } 792ccd979bdSMark Fasheh 793ccd979bdSMark Fasheh bail: 794ccd979bdSMark Fasheh return status; 795ccd979bdSMark Fasheh } 796ccd979bdSMark Fasheh 797c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 798c271c5c2SSunil Mushran { 799c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 800c271c5c2SSunil Mushran if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 801c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 802c271c5c2SSunil Mushran "mounted device.\n"); 803c271c5c2SSunil Mushran return -EINVAL; 804c271c5c2SSunil Mushran } 805c271c5c2SSunil Mushran } 806c271c5c2SSunil Mushran 807b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 808b61817e1SJoel Becker if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 809b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 810b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 811b61817e1SJoel Becker return -EINVAL; 812b61817e1SJoel Becker } 813b61817e1SJoel Becker } 814b61817e1SJoel Becker 815c271c5c2SSunil Mushran if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 816b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 817b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 818c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 819c271c5c2SSunil Mushran "a read-write clustered device.\n"); 820c271c5c2SSunil Mushran return -EINVAL; 821c271c5c2SSunil Mushran } 822c271c5c2SSunil Mushran } 823c271c5c2SSunil Mushran 824c271c5c2SSunil Mushran return 0; 825c271c5c2SSunil Mushran } 826c271c5c2SSunil Mushran 827b61817e1SJoel Becker /* 828b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 829b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 830b61817e1SJoel Becker * have passed a stack. 831b61817e1SJoel Becker */ 832b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 833b61817e1SJoel Becker struct mount_options *mopt) 834b61817e1SJoel Becker { 835b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 836b61817e1SJoel Becker mlog(ML_ERROR, 837b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 838b61817e1SJoel Becker "does not support it\n"); 839b61817e1SJoel Becker return -EINVAL; 840b61817e1SJoel Becker } 841b61817e1SJoel Becker 842b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 843b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 844b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 845b61817e1SJoel Becker mlog(ML_ERROR, 846b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 847b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 848b61817e1SJoel Becker mopt->cluster_stack, 849b61817e1SJoel Becker osb->osb_cluster_stack); 850b61817e1SJoel Becker return -EINVAL; 851b61817e1SJoel Becker } 852b61817e1SJoel Becker 853b61817e1SJoel Becker return 0; 854b61817e1SJoel Becker } 855b61817e1SJoel Becker 85619ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 85719ece546SJan Kara { 85819ece546SJan Kara int type; 85919ece546SJan Kara struct super_block *sb = osb->sb; 86019ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 86119ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 86219ece546SJan Kara int status = 0; 86319ece546SJan Kara 86419ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 86519ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 86619ece546SJan Kara continue; 86719ece546SJan Kara if (unsuspend) 86819ece546SJan Kara status = vfs_quota_enable( 86919ece546SJan Kara sb_dqopt(sb)->files[type], 87019ece546SJan Kara type, QFMT_OCFS2, 87119ece546SJan Kara DQUOT_SUSPENDED); 87219ece546SJan Kara else 87319ece546SJan Kara status = vfs_quota_disable(sb, type, 87419ece546SJan Kara DQUOT_SUSPENDED); 87519ece546SJan Kara if (status < 0) 87619ece546SJan Kara break; 87719ece546SJan Kara } 87819ece546SJan Kara if (status < 0) 87919ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 88019ece546SJan Kara "remount (error = %d).\n", status); 88119ece546SJan Kara return status; 88219ece546SJan Kara } 88319ece546SJan Kara 88419ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 88519ece546SJan Kara { 88619ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 88719ece546SJan Kara struct super_block *sb = osb->sb; 88819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 88919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 89019ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 89119ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 89219ece546SJan Kara int status; 89319ece546SJan Kara int type; 89419ece546SJan Kara 89519ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 89619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 89719ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 89819ece546SJan Kara continue; 89919ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 90019ece546SJan Kara osb->slot_num); 90119ece546SJan Kara if (!inode[type]) { 90219ece546SJan Kara status = -ENOENT; 90319ece546SJan Kara goto out_quota_off; 90419ece546SJan Kara } 90519ece546SJan Kara status = vfs_quota_enable(inode[type], type, QFMT_OCFS2, 90619ece546SJan Kara DQUOT_USAGE_ENABLED); 90719ece546SJan Kara if (status < 0) 90819ece546SJan Kara goto out_quota_off; 90919ece546SJan Kara } 91019ece546SJan Kara 91119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 91219ece546SJan Kara iput(inode[type]); 91319ece546SJan Kara return 0; 91419ece546SJan Kara out_quota_off: 91519ece546SJan Kara ocfs2_disable_quotas(osb); 91619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 91719ece546SJan Kara iput(inode[type]); 91819ece546SJan Kara mlog_errno(status); 91919ece546SJan Kara return status; 92019ece546SJan Kara } 92119ece546SJan Kara 92219ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 92319ece546SJan Kara { 92419ece546SJan Kara int type; 92519ece546SJan Kara struct inode *inode; 92619ece546SJan Kara struct super_block *sb = osb->sb; 92719ece546SJan Kara 92819ece546SJan Kara /* We mostly ignore errors in this function because there's not much 92919ece546SJan Kara * we can do when we see them */ 93019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 93119ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 93219ece546SJan Kara continue; 93319ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 93419ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 93519ece546SJan Kara * memory and so they will be automatically synced to global 93619ece546SJan Kara * quota files */ 93719ece546SJan Kara vfs_quota_disable(sb, type, DQUOT_USAGE_ENABLED | 93819ece546SJan Kara DQUOT_LIMITS_ENABLED); 93919ece546SJan Kara if (!inode) 94019ece546SJan Kara continue; 94119ece546SJan Kara iput(inode); 94219ece546SJan Kara } 94319ece546SJan Kara } 94419ece546SJan Kara 94519ece546SJan Kara /* Handle quota on quotactl */ 94619ece546SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id, 94719ece546SJan Kara char *path, int remount) 94819ece546SJan Kara { 94919ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 95019ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 95119ece546SJan Kara 95219ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 95319ece546SJan Kara return -EINVAL; 95419ece546SJan Kara 95519ece546SJan Kara if (remount) 95619ece546SJan Kara return 0; /* Just ignore it has been handled in 95719ece546SJan Kara * ocfs2_remount() */ 95819ece546SJan Kara return vfs_quota_enable(sb_dqopt(sb)->files[type], type, 95919ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 96019ece546SJan Kara } 96119ece546SJan Kara 96219ece546SJan Kara /* Handle quota off quotactl */ 96319ece546SJan Kara static int ocfs2_quota_off(struct super_block *sb, int type, int remount) 96419ece546SJan Kara { 96519ece546SJan Kara if (remount) 96619ece546SJan Kara return 0; /* Ignore now and handle later in 96719ece546SJan Kara * ocfs2_remount() */ 96819ece546SJan Kara return vfs_quota_disable(sb, type, DQUOT_LIMITS_ENABLED); 96919ece546SJan Kara } 97019ece546SJan Kara 97119ece546SJan Kara static struct quotactl_ops ocfs2_quotactl_ops = { 97219ece546SJan Kara .quota_on = ocfs2_quota_on, 97319ece546SJan Kara .quota_off = ocfs2_quota_off, 97419ece546SJan Kara .quota_sync = vfs_quota_sync, 97519ece546SJan Kara .get_info = vfs_get_dqinfo, 97619ece546SJan Kara .set_info = vfs_set_dqinfo, 97719ece546SJan Kara .get_dqblk = vfs_get_dqblk, 97819ece546SJan Kara .set_dqblk = vfs_set_dqblk, 97919ece546SJan Kara }; 98019ece546SJan Kara 981ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 982ccd979bdSMark Fasheh { 983ccd979bdSMark Fasheh struct dentry *root; 984ccd979bdSMark Fasheh int status, sector_size; 985c0123adeSTiger Yang struct mount_options parsed_options; 986ccd979bdSMark Fasheh struct inode *inode = NULL; 987ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 988ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 989c271c5c2SSunil Mushran char nodestr[8]; 99073be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 991ccd979bdSMark Fasheh 992ccd979bdSMark Fasheh mlog_entry("%p, %p, %i", sb, data, silent); 993ccd979bdSMark Fasheh 994c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 995c271c5c2SSunil Mushran status = -EINVAL; 996c271c5c2SSunil Mushran goto read_super_error; 997c271c5c2SSunil Mushran } 998c271c5c2SSunil Mushran 999ccd979bdSMark Fasheh /* probe for superblock */ 100073be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1001ccd979bdSMark Fasheh if (status < 0) { 1002ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1003ccd979bdSMark Fasheh goto read_super_error; 1004ccd979bdSMark Fasheh } 1005ccd979bdSMark Fasheh 100673be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1007ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1008ccd979bdSMark Fasheh if (status < 0) { 1009ccd979bdSMark Fasheh mlog_errno(status); 1010ccd979bdSMark Fasheh goto read_super_error; 1011ccd979bdSMark Fasheh } 1012ccd979bdSMark Fasheh brelse(bh); 1013ccd979bdSMark Fasheh bh = NULL; 1014a68979b8STiger Yang 1015a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 1016a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1017a68979b8STiger Yang 1018c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1019c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1020c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1021d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 10229c7af40bSMark Fasheh osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt); 10239c7af40bSMark Fasheh osb->local_alloc_bits = osb->local_alloc_default_bits; 102419ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_USRQUOTA && 102519ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 102619ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 102719ece546SJan Kara status = -EINVAL; 102819ece546SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 102919ece546SJan Kara "filesystem does not have the feature enabled.\n"); 103019ece546SJan Kara goto read_super_error; 103119ece546SJan Kara } 103219ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_GRPQUOTA && 103319ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 103419ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 103519ece546SJan Kara status = -EINVAL; 103619ece546SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 103719ece546SJan Kara "filesystem does not have the feature enabled.\n"); 103819ece546SJan Kara goto read_super_error; 103919ece546SJan Kara } 1040ccd979bdSMark Fasheh 1041b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1042b61817e1SJoel Becker if (status) 1043b61817e1SJoel Becker goto read_super_error; 1044b61817e1SJoel Becker 1045ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1046ccd979bdSMark Fasheh 1047a68979b8STiger Yang sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 1048a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1049a68979b8STiger Yang 1050ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1051ccd979bdSMark Fasheh * heartbeat=none */ 1052ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1053ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1054ccd979bdSMark Fasheh status = -EACCES; 1055ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1056ccd979bdSMark Fasheh "mount was not specified.\n"); 1057ccd979bdSMark Fasheh goto read_super_error; 1058ccd979bdSMark Fasheh } 1059ccd979bdSMark Fasheh 1060ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1061ccd979bdSMark Fasheh * on a readonly device. */ 1062ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1063ccd979bdSMark Fasheh status = -EROFS; 1064ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1065ccd979bdSMark Fasheh "device.\n"); 1066ccd979bdSMark Fasheh goto read_super_error; 1067ccd979bdSMark Fasheh } 1068ccd979bdSMark Fasheh 1069ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1070ccd979bdSMark Fasheh if (status < 0) { 1071ccd979bdSMark Fasheh if (status == -EROFS) 1072ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1073ccd979bdSMark Fasheh "file system, but write access is " 1074ccd979bdSMark Fasheh "unavailable.\n"); 1075ccd979bdSMark Fasheh else 1076ccd979bdSMark Fasheh mlog_errno(status); 1077ccd979bdSMark Fasheh goto read_super_error; 1078ccd979bdSMark Fasheh } 1079ccd979bdSMark Fasheh 1080ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1081ccd979bdSMark Fasheh 1082ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 1083ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 1084ccd979bdSMark Fasheh "will be skipped.\n"); 1085ccd979bdSMark Fasheh } 1086ccd979bdSMark Fasheh 1087ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1088ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1089ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1090ccd979bdSMark Fasheh } 1091ccd979bdSMark Fasheh 1092c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1093c271c5c2SSunil Mushran if (status < 0) { 1094c271c5c2SSunil Mushran mlog_errno(status); 1095c271c5c2SSunil Mushran goto read_super_error; 1096c271c5c2SSunil Mushran } 1097c271c5c2SSunil Mushran 1098ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1099ccd979bdSMark Fasheh ocfs2_debugfs_root); 1100ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1101ccd979bdSMark Fasheh status = -EINVAL; 1102ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1103ccd979bdSMark Fasheh goto read_super_error; 1104ccd979bdSMark Fasheh } 1105ccd979bdSMark Fasheh 110650397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 110750397507SSunil Mushran osb->osb_debug_root, 110850397507SSunil Mushran osb, 110950397507SSunil Mushran &ocfs2_osb_debug_fops); 111050397507SSunil Mushran if (!osb->osb_ctxt) { 111150397507SSunil Mushran status = -EINVAL; 111250397507SSunil Mushran mlog_errno(status); 111350397507SSunil Mushran goto read_super_error; 111450397507SSunil Mushran } 111550397507SSunil Mushran 111673be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 111773be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 111873be192bSJoel Becker &osb->osb_ecc_stats, 111973be192bSJoel Becker osb->osb_debug_root); 112073be192bSJoel Becker if (status) { 112173be192bSJoel Becker mlog(ML_ERROR, 112273be192bSJoel Becker "Unable to create blockcheck statistics " 112373be192bSJoel Becker "files\n"); 112473be192bSJoel Becker goto read_super_error; 112573be192bSJoel Becker } 112673be192bSJoel Becker } 112773be192bSJoel Becker 1128ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1129ccd979bdSMark Fasheh if (osb->root_inode) 1130ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 1131ccd979bdSMark Fasheh 1132ccd979bdSMark Fasheh if (status < 0) 1133ccd979bdSMark Fasheh goto read_super_error; 1134ccd979bdSMark Fasheh 1135ccd979bdSMark Fasheh if (!inode) { 1136ccd979bdSMark Fasheh status = -EIO; 1137ccd979bdSMark Fasheh mlog_errno(status); 1138ccd979bdSMark Fasheh goto read_super_error; 1139ccd979bdSMark Fasheh } 1140ccd979bdSMark Fasheh 1141ccd979bdSMark Fasheh root = d_alloc_root(inode); 1142ccd979bdSMark Fasheh if (!root) { 1143ccd979bdSMark Fasheh status = -ENOMEM; 1144ccd979bdSMark Fasheh mlog_errno(status); 1145ccd979bdSMark Fasheh goto read_super_error; 1146ccd979bdSMark Fasheh } 1147ccd979bdSMark Fasheh 1148ccd979bdSMark Fasheh sb->s_root = root; 1149ccd979bdSMark Fasheh 1150ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1151ccd979bdSMark Fasheh 1152c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1153c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1154c271c5c2SSunil Mushran else 115519fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1156c271c5c2SSunil Mushran 1157c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1158781ee3e2SSunil Mushran "with %s data mode.\n", 1159c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1160ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1161ccd979bdSMark Fasheh "ordered"); 1162ccd979bdSMark Fasheh 1163ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1164ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1165ccd979bdSMark Fasheh 116619ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 116719ece546SJan Kara * for cluster locks recovery now. That also means that truncation 116819ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 116919ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 117019ece546SJan Kara status = ocfs2_enable_quotas(osb); 117119ece546SJan Kara if (status < 0) { 117219ece546SJan Kara /* We have to err-out specially here because 117319ece546SJan Kara * s_root is already set */ 117419ece546SJan Kara mlog_errno(status); 117519ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 117619ece546SJan Kara wake_up(&osb->osb_mount_event); 117719ece546SJan Kara mlog_exit(status); 117819ece546SJan Kara return status; 117919ece546SJan Kara } 118019ece546SJan Kara } 118119ece546SJan Kara 118219ece546SJan Kara ocfs2_complete_quota_recovery(osb); 118319ece546SJan Kara 118419ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 118519ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 118619ece546SJan Kara wake_up(&osb->osb_mount_event); 118719ece546SJan Kara 1188ccd979bdSMark Fasheh mlog_exit(status); 1189ccd979bdSMark Fasheh return status; 1190ccd979bdSMark Fasheh 1191ccd979bdSMark Fasheh read_super_error: 1192ccd979bdSMark Fasheh brelse(bh); 1193ccd979bdSMark Fasheh 1194ccd979bdSMark Fasheh if (inode) 1195ccd979bdSMark Fasheh iput(inode); 1196ccd979bdSMark Fasheh 1197ccd979bdSMark Fasheh if (osb) { 1198ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1199ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1200ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1201ccd979bdSMark Fasheh } 1202ccd979bdSMark Fasheh 1203ccd979bdSMark Fasheh mlog_exit(status); 1204ccd979bdSMark Fasheh return status; 1205ccd979bdSMark Fasheh } 1206ccd979bdSMark Fasheh 1207454e2398SDavid Howells static int ocfs2_get_sb(struct file_system_type *fs_type, 1208ccd979bdSMark Fasheh int flags, 1209ccd979bdSMark Fasheh const char *dev_name, 1210454e2398SDavid Howells void *data, 1211454e2398SDavid Howells struct vfsmount *mnt) 1212ccd979bdSMark Fasheh { 1213454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, 1214454e2398SDavid Howells mnt); 1215ccd979bdSMark Fasheh } 1216ccd979bdSMark Fasheh 1217ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1218ccd979bdSMark Fasheh .owner = THIS_MODULE, 1219ccd979bdSMark Fasheh .name = "ocfs2", 1220ccd979bdSMark Fasheh .get_sb = ocfs2_get_sb, /* is this called when we mount 1221ccd979bdSMark Fasheh * the fs? */ 1222ccd979bdSMark Fasheh .kill_sb = kill_block_super, /* set to the generic one 1223ccd979bdSMark Fasheh * right now, but do we 1224ccd979bdSMark Fasheh * need to change that? */ 12251ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1226ccd979bdSMark Fasheh .next = NULL 1227ccd979bdSMark Fasheh }; 1228ccd979bdSMark Fasheh 1229ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1230ccd979bdSMark Fasheh char *options, 1231c0123adeSTiger Yang struct mount_options *mopt, 1232ccd979bdSMark Fasheh int is_remount) 1233ccd979bdSMark Fasheh { 1234ccd979bdSMark Fasheh int status; 1235ccd979bdSMark Fasheh char *p; 1236ccd979bdSMark Fasheh 1237ccd979bdSMark Fasheh mlog_entry("remount: %d, options: \"%s\"\n", is_remount, 1238ccd979bdSMark Fasheh options ? options : "(none)"); 1239ccd979bdSMark Fasheh 1240d147b3d6SMark Fasheh mopt->commit_interval = 0; 1241c0123adeSTiger Yang mopt->mount_opt = 0; 1242c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1243c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 12442fbe8d1eSSunil Mushran mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; 1245b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1246ccd979bdSMark Fasheh 1247ccd979bdSMark Fasheh if (!options) { 1248ccd979bdSMark Fasheh status = 1; 1249ccd979bdSMark Fasheh goto bail; 1250ccd979bdSMark Fasheh } 1251ccd979bdSMark Fasheh 1252ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1253ccd979bdSMark Fasheh int token, option; 1254ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1255ccd979bdSMark Fasheh 1256ccd979bdSMark Fasheh if (!*p) 1257ccd979bdSMark Fasheh continue; 1258ccd979bdSMark Fasheh 1259ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1260ccd979bdSMark Fasheh switch (token) { 1261ccd979bdSMark Fasheh case Opt_hb_local: 1262c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1263ccd979bdSMark Fasheh break; 1264ccd979bdSMark Fasheh case Opt_hb_none: 1265c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; 1266ccd979bdSMark Fasheh break; 1267ccd979bdSMark Fasheh case Opt_barrier: 1268ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1269ccd979bdSMark Fasheh status = 0; 1270ccd979bdSMark Fasheh goto bail; 1271ccd979bdSMark Fasheh } 1272ccd979bdSMark Fasheh if (option) 1273c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1274ccd979bdSMark Fasheh else 1275c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1276ccd979bdSMark Fasheh break; 1277ccd979bdSMark Fasheh case Opt_intr: 1278c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1279ccd979bdSMark Fasheh break; 1280ccd979bdSMark Fasheh case Opt_nointr: 1281c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1282ccd979bdSMark Fasheh break; 1283ccd979bdSMark Fasheh case Opt_err_panic: 1284c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1285ccd979bdSMark Fasheh break; 1286ccd979bdSMark Fasheh case Opt_err_ro: 1287c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1288ccd979bdSMark Fasheh break; 1289ccd979bdSMark Fasheh case Opt_data_ordered: 1290c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1291ccd979bdSMark Fasheh break; 1292ccd979bdSMark Fasheh case Opt_data_writeback: 1293c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1294ccd979bdSMark Fasheh break; 1295cf1d6c76STiger Yang case Opt_user_xattr: 1296cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1297cf1d6c76STiger Yang break; 1298cf1d6c76STiger Yang case Opt_nouser_xattr: 1299cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1300cf1d6c76STiger Yang break; 13017f1a37e3STiger Yang case Opt_atime_quantum: 13027f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13037f1a37e3STiger Yang status = 0; 13047f1a37e3STiger Yang goto bail; 13057f1a37e3STiger Yang } 13067f1a37e3STiger Yang if (option >= 0) 1307c0123adeSTiger Yang mopt->atime_quantum = option; 13087f1a37e3STiger Yang break; 1309baf4661aSSunil Mushran case Opt_slot: 1310baf4661aSSunil Mushran option = 0; 1311baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1312baf4661aSSunil Mushran status = 0; 1313baf4661aSSunil Mushran goto bail; 1314baf4661aSSunil Mushran } 1315baf4661aSSunil Mushran if (option) 1316c0123adeSTiger Yang mopt->slot = (s16)option; 1317baf4661aSSunil Mushran break; 1318d147b3d6SMark Fasheh case Opt_commit: 1319d147b3d6SMark Fasheh option = 0; 1320d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1321d147b3d6SMark Fasheh status = 0; 1322d147b3d6SMark Fasheh goto bail; 1323d147b3d6SMark Fasheh } 1324d147b3d6SMark Fasheh if (option < 0) 1325d147b3d6SMark Fasheh return 0; 1326d147b3d6SMark Fasheh if (option == 0) 13272b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1328d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1329d147b3d6SMark Fasheh break; 13302fbe8d1eSSunil Mushran case Opt_localalloc: 13312fbe8d1eSSunil Mushran option = 0; 13322fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 13332fbe8d1eSSunil Mushran status = 0; 13342fbe8d1eSSunil Mushran goto bail; 13352fbe8d1eSSunil Mushran } 13362fbe8d1eSSunil Mushran if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8)) 13372fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 13382fbe8d1eSSunil Mushran break; 133953fc622bSMark Fasheh case Opt_localflocks: 134053fc622bSMark Fasheh /* 134153fc622bSMark Fasheh * Changing this during remount could race 134253fc622bSMark Fasheh * flock() requests, or "unbalance" existing 134353fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 134453fc622bSMark Fasheh * dropped in the other). If users care enough 134553fc622bSMark Fasheh * to flip locking modes during remount, we 134653fc622bSMark Fasheh * could add a "local" flag to individual 134753fc622bSMark Fasheh * flock structures for proper tracking of 134853fc622bSMark Fasheh * state. 134953fc622bSMark Fasheh */ 135053fc622bSMark Fasheh if (!is_remount) 135153fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 135253fc622bSMark Fasheh break; 1353b61817e1SJoel Becker case Opt_stack: 1354b61817e1SJoel Becker /* Check both that the option we were passed 1355b61817e1SJoel Becker * is of the right length and that it is a proper 1356b61817e1SJoel Becker * string of the right length. 1357b61817e1SJoel Becker */ 1358b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1359b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1360b61817e1SJoel Becker (strnlen(args[0].from, 1361b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1362b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1363b61817e1SJoel Becker mlog(ML_ERROR, 1364b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1365b61817e1SJoel Becker status = 0; 1366b61817e1SJoel Becker goto bail; 1367b61817e1SJoel Becker } 1368b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1369b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1370b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 1371b61817e1SJoel Becker break; 137212462f1dSJoel Becker case Opt_inode64: 137312462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 137412462f1dSJoel Becker break; 137519ece546SJan Kara case Opt_usrquota: 137619ece546SJan Kara /* We check only on remount, otherwise features 137719ece546SJan Kara * aren't yet initialized. */ 137819ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 137919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 138019ece546SJan Kara mlog(ML_ERROR, "User quota requested but " 138119ece546SJan Kara "filesystem feature is not set\n"); 138219ece546SJan Kara status = 0; 138319ece546SJan Kara goto bail; 138419ece546SJan Kara } 138519ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 138619ece546SJan Kara break; 138719ece546SJan Kara case Opt_grpquota: 138819ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 138919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 139019ece546SJan Kara mlog(ML_ERROR, "Group quota requested but " 139119ece546SJan Kara "filesystem feature is not set\n"); 139219ece546SJan Kara status = 0; 139319ece546SJan Kara goto bail; 139419ece546SJan Kara } 139519ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 139619ece546SJan Kara break; 1397a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1398a68979b8STiger Yang case Opt_acl: 1399a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 1400a68979b8STiger Yang break; 1401a68979b8STiger Yang case Opt_noacl: 1402a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1403a68979b8STiger Yang break; 1404a68979b8STiger Yang #else 1405a68979b8STiger Yang case Opt_acl: 1406a68979b8STiger Yang case Opt_noacl: 1407a68979b8STiger Yang printk(KERN_INFO "ocfs2 (no)acl options not supported\n"); 1408a68979b8STiger Yang break; 1409a68979b8STiger Yang #endif 1410ccd979bdSMark Fasheh default: 1411ccd979bdSMark Fasheh mlog(ML_ERROR, 1412ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1413ccd979bdSMark Fasheh "or missing value\n", p); 1414ccd979bdSMark Fasheh status = 0; 1415ccd979bdSMark Fasheh goto bail; 1416ccd979bdSMark Fasheh } 1417ccd979bdSMark Fasheh } 1418ccd979bdSMark Fasheh 1419ccd979bdSMark Fasheh status = 1; 1420ccd979bdSMark Fasheh 1421ccd979bdSMark Fasheh bail: 1422ccd979bdSMark Fasheh mlog_exit(status); 1423ccd979bdSMark Fasheh return status; 1424ccd979bdSMark Fasheh } 1425ccd979bdSMark Fasheh 1426d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1427d550071cSSunil Mushran { 1428d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1429d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1430ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1431d550071cSSunil Mushran 1432d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 1433d550071cSSunil Mushran seq_printf(s, ",_netdev,heartbeat=local"); 1434d550071cSSunil Mushran else 1435d550071cSSunil Mushran seq_printf(s, ",heartbeat=none"); 1436d550071cSSunil Mushran 1437d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1438d550071cSSunil Mushran seq_printf(s, ",nointr"); 1439d550071cSSunil Mushran 1440d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1441d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1442d550071cSSunil Mushran else 1443d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1444d550071cSSunil Mushran 1445d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1446d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1447d550071cSSunil Mushran 1448d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1449d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1450d550071cSSunil Mushran else 1451d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1452d550071cSSunil Mushran 1453d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1454d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1455d550071cSSunil Mushran 1456d550071cSSunil Mushran if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) 1457d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1458d550071cSSunil Mushran 1459d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1460d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1461d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1462d147b3d6SMark Fasheh 1463ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 1464ebcee4b5SMark Fasheh if (local_alloc_megs != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE) 1465ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 14662fbe8d1eSSunil Mushran 146753fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 146853fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 146953fc622bSMark Fasheh 1470b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1471b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1472b61817e1SJoel Becker osb->osb_cluster_stack); 147319ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 147419ece546SJan Kara seq_printf(s, ",usrquota"); 147519ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 147619ece546SJan Kara seq_printf(s, ",grpquota"); 1477b61817e1SJoel Becker 1478b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1479b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1480b0f73cfcSSunil Mushran else 1481b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1482b0f73cfcSSunil Mushran 148312462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 148412462f1dSJoel Becker seq_printf(s, ",inode64"); 148512462f1dSJoel Becker 1486a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1487a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1488a68979b8STiger Yang seq_printf(s, ",acl"); 1489a68979b8STiger Yang else 1490a68979b8STiger Yang seq_printf(s, ",noacl"); 1491a68979b8STiger Yang #endif 1492a68979b8STiger Yang 1493d550071cSSunil Mushran return 0; 1494d550071cSSunil Mushran } 1495d550071cSSunil Mushran 1496ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1497ccd979bdSMark Fasheh { 1498ccd979bdSMark Fasheh int status; 1499ccd979bdSMark Fasheh 1500ccd979bdSMark Fasheh mlog_entry_void(); 1501ccd979bdSMark Fasheh 1502ccd979bdSMark Fasheh ocfs2_print_version(); 1503ccd979bdSMark Fasheh 1504ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1505ccd979bdSMark Fasheh if (status < 0) { 1506ccd979bdSMark Fasheh mlog_errno(status); 1507ccd979bdSMark Fasheh goto leave; 1508ccd979bdSMark Fasheh } 1509ccd979bdSMark Fasheh 1510ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1511ccd979bdSMark Fasheh if (status < 0) { 1512ccd979bdSMark Fasheh mlog_errno(status); 1513ccd979bdSMark Fasheh goto leave; 1514ccd979bdSMark Fasheh } 1515ccd979bdSMark Fasheh 1516ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1517ccd979bdSMark Fasheh if (!ocfs2_wq) { 1518ccd979bdSMark Fasheh status = -ENOMEM; 1519ccd979bdSMark Fasheh goto leave; 1520ccd979bdSMark Fasheh } 1521ccd979bdSMark Fasheh 1522ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1523ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1524ccd979bdSMark Fasheh status = -EFAULT; 1525ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1526ccd979bdSMark Fasheh } 1527ccd979bdSMark Fasheh 1528171bf93cSMark Fasheh status = ocfs2_quota_setup(); 1529171bf93cSMark Fasheh if (status) 1530171bf93cSMark Fasheh goto leave; 1531171bf93cSMark Fasheh 153263e0c48aSJoel Becker ocfs2_set_locking_protocol(); 153363e0c48aSJoel Becker 15349e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1535ccd979bdSMark Fasheh leave: 1536ccd979bdSMark Fasheh if (status < 0) { 1537171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1538ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1539ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1540ccd979bdSMark Fasheh } 1541ccd979bdSMark Fasheh 1542ccd979bdSMark Fasheh mlog_exit(status); 1543ccd979bdSMark Fasheh 1544ccd979bdSMark Fasheh if (status >= 0) { 1545ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1546ccd979bdSMark Fasheh } else 1547ccd979bdSMark Fasheh return -1; 1548ccd979bdSMark Fasheh } 1549ccd979bdSMark Fasheh 1550ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1551ccd979bdSMark Fasheh { 1552ccd979bdSMark Fasheh mlog_entry_void(); 1553ccd979bdSMark Fasheh 1554171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1555171bf93cSMark Fasheh 1556ccd979bdSMark Fasheh if (ocfs2_wq) { 1557ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1558ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1559ccd979bdSMark Fasheh } 1560ccd979bdSMark Fasheh 15619e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 15629e33d69fSJan Kara 1563ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1564ccd979bdSMark Fasheh 1565ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1566ccd979bdSMark Fasheh 1567ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1568ccd979bdSMark Fasheh 1569ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1570ccd979bdSMark Fasheh 1571ccd979bdSMark Fasheh mlog_exit_void(); 1572ccd979bdSMark Fasheh } 1573ccd979bdSMark Fasheh 1574ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1575ccd979bdSMark Fasheh { 1576ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1577ccd979bdSMark Fasheh 1578ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1579ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1580ccd979bdSMark Fasheh 1581ccd979bdSMark Fasheh mlog_exit_void(); 1582ccd979bdSMark Fasheh } 1583ccd979bdSMark Fasheh 1584726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1585ccd979bdSMark Fasheh { 1586ccd979bdSMark Fasheh struct ocfs2_super *osb; 1587ccd979bdSMark Fasheh u32 numbits, freebits; 1588ccd979bdSMark Fasheh int status; 1589ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1590ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1591ccd979bdSMark Fasheh struct inode *inode = NULL; 1592ccd979bdSMark Fasheh 1593726c3342SDavid Howells mlog_entry("(%p, %p)\n", dentry->d_sb, buf); 1594ccd979bdSMark Fasheh 1595726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1596ccd979bdSMark Fasheh 1597ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1598ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1599ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1600ccd979bdSMark Fasheh if (!inode) { 1601ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1602ccd979bdSMark Fasheh status = -EIO; 1603ccd979bdSMark Fasheh goto bail; 1604ccd979bdSMark Fasheh } 1605ccd979bdSMark Fasheh 1606e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1607ccd979bdSMark Fasheh if (status < 0) { 1608ccd979bdSMark Fasheh mlog_errno(status); 1609ccd979bdSMark Fasheh goto bail; 1610ccd979bdSMark Fasheh } 1611ccd979bdSMark Fasheh 1612ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1613ccd979bdSMark Fasheh 1614ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1615ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1616ccd979bdSMark Fasheh 1617ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1618726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1619ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1620ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1621ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1622ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1623ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1624ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1625ccd979bdSMark Fasheh buf->f_files = numbits; 1626ccd979bdSMark Fasheh buf->f_ffree = freebits; 1627ccd979bdSMark Fasheh 1628ccd979bdSMark Fasheh brelse(bh); 1629ccd979bdSMark Fasheh 1630e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1631ccd979bdSMark Fasheh status = 0; 1632ccd979bdSMark Fasheh bail: 1633ccd979bdSMark Fasheh if (inode) 1634ccd979bdSMark Fasheh iput(inode); 1635ccd979bdSMark Fasheh 1636ccd979bdSMark Fasheh mlog_exit(status); 1637ccd979bdSMark Fasheh 1638ccd979bdSMark Fasheh return status; 1639ccd979bdSMark Fasheh } 1640ccd979bdSMark Fasheh 164151cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1642ccd979bdSMark Fasheh { 1643ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1644ccd979bdSMark Fasheh 1645ccd979bdSMark Fasheh oi->ip_flags = 0; 1646ccd979bdSMark Fasheh oi->ip_open_count = 0; 1647ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 164883418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1649ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1650ccd979bdSMark Fasheh oi->ip_created_trans = 0; 1651ccd979bdSMark Fasheh oi->ip_last_trans = 0; 1652ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1653ccd979bdSMark Fasheh 1654ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1655cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1656251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1657ccd979bdSMark Fasheh 1658ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1659ccd979bdSMark Fasheh oi->ip_clusters = 0; 1660ccd979bdSMark Fasheh 1661ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1662e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 166350008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1664ccd979bdSMark Fasheh 1665ccd979bdSMark Fasheh ocfs2_metadata_cache_init(&oi->vfs_inode); 1666ccd979bdSMark Fasheh 1667ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1668ccd979bdSMark Fasheh } 1669ccd979bdSMark Fasheh 1670ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1671ccd979bdSMark Fasheh { 1672ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1673ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1674fffb60f9SPaul Jackson 0, 1675fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1676fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 167720c2df83SPaul Mundt ocfs2_inode_init_once); 16789e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 16799e33d69fSJan Kara sizeof(struct ocfs2_dquot), 16809e33d69fSJan Kara 0, 16819e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 16829e33d69fSJan Kara SLAB_MEM_SPREAD), 16839e33d69fSJan Kara NULL); 16849e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 16859e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 16869e33d69fSJan Kara 0, 16879e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 16889e33d69fSJan Kara NULL); 16899e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 16909e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 16919e33d69fSJan Kara if (ocfs2_inode_cachep) 16929e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 16939e33d69fSJan Kara if (ocfs2_dquot_cachep) 16949e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 16959e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 16969e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1697ccd979bdSMark Fasheh return -ENOMEM; 16989e33d69fSJan Kara } 1699ccd979bdSMark Fasheh 1700ccd979bdSMark Fasheh return 0; 1701ccd979bdSMark Fasheh } 1702ccd979bdSMark Fasheh 1703ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1704ccd979bdSMark Fasheh { 1705ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1706ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1707ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 17089e33d69fSJan Kara 17099e33d69fSJan Kara if (ocfs2_dquot_cachep) 17109e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17119e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 17129e33d69fSJan Kara 17139e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 17149e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 17159e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1716ccd979bdSMark Fasheh } 1717ccd979bdSMark Fasheh 1718ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1719ccd979bdSMark Fasheh struct buffer_head **bh, 1720ccd979bdSMark Fasheh int block, 1721ccd979bdSMark Fasheh int sect_size) 1722ccd979bdSMark Fasheh { 1723ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1724ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1725ccd979bdSMark Fasheh return -EIO; 1726ccd979bdSMark Fasheh } 1727ccd979bdSMark Fasheh 1728ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1729ccd979bdSMark Fasheh if (!*bh) { 1730ccd979bdSMark Fasheh mlog_errno(-EIO); 1731ccd979bdSMark Fasheh return -EIO; 1732ccd979bdSMark Fasheh } 1733ccd979bdSMark Fasheh lock_buffer(*bh); 1734ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1735ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1736ccd979bdSMark Fasheh unlock_buffer(*bh); 1737ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1738ccd979bdSMark Fasheh wait_on_buffer(*bh); 173928d57d43Swengang wang if (!buffer_uptodate(*bh)) { 174028d57d43Swengang wang mlog_errno(-EIO); 174128d57d43Swengang wang brelse(*bh); 174228d57d43Swengang wang *bh = NULL; 174328d57d43Swengang wang return -EIO; 174428d57d43Swengang wang } 174528d57d43Swengang wang 1746ccd979bdSMark Fasheh return 0; 1747ccd979bdSMark Fasheh } 1748ccd979bdSMark Fasheh 1749ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1750ccd979bdSMark Fasheh { 1751ccd979bdSMark Fasheh int status = 0; 1752ccd979bdSMark Fasheh int unlock_super = 0; 1753ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1754ccd979bdSMark Fasheh 1755ccd979bdSMark Fasheh mlog_entry_void(); 1756ccd979bdSMark Fasheh 1757ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1758ccd979bdSMark Fasheh goto leave; 1759ccd979bdSMark Fasheh 1760ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1761ccd979bdSMark Fasheh if (status < 0) { 1762ccd979bdSMark Fasheh mlog_errno(status); 1763ccd979bdSMark Fasheh goto leave; 1764ccd979bdSMark Fasheh } 1765ccd979bdSMark Fasheh 1766ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1767ccd979bdSMark Fasheh if (status < 0) { 1768ccd979bdSMark Fasheh mlog_errno(status); 1769ccd979bdSMark Fasheh goto leave; 1770ccd979bdSMark Fasheh } 1771ccd979bdSMark Fasheh unlock_super = 1; 1772ccd979bdSMark Fasheh 1773ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1774ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1775ccd979bdSMark Fasheh if (status < 0) { 1776ccd979bdSMark Fasheh mlog_errno(status); 1777ccd979bdSMark Fasheh goto leave; 1778ccd979bdSMark Fasheh } 1779ccd979bdSMark Fasheh 1780ccd979bdSMark Fasheh /* load all node-local system inodes */ 1781ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1782ccd979bdSMark Fasheh if (status < 0) { 1783ccd979bdSMark Fasheh mlog_errno(status); 1784ccd979bdSMark Fasheh goto leave; 1785ccd979bdSMark Fasheh } 1786ccd979bdSMark Fasheh 1787ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1788ccd979bdSMark Fasheh if (status < 0) { 1789ccd979bdSMark Fasheh mlog_errno(status); 1790ccd979bdSMark Fasheh goto leave; 1791ccd979bdSMark Fasheh } 1792ccd979bdSMark Fasheh 1793ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 179406c59bb8STao Ma if (status < 0) 1795ccd979bdSMark Fasheh mlog_errno(status); 1796c271c5c2SSunil Mushran 1797ccd979bdSMark Fasheh leave: 1798ccd979bdSMark Fasheh if (unlock_super) 1799ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1800ccd979bdSMark Fasheh 1801ccd979bdSMark Fasheh mlog_exit(status); 1802ccd979bdSMark Fasheh return status; 1803ccd979bdSMark Fasheh } 1804ccd979bdSMark Fasheh 1805ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1806ccd979bdSMark Fasheh { 1807286eaa95SJoel Becker int tmp, hangup_needed = 0; 1808ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1809c271c5c2SSunil Mushran char nodestr[8]; 1810ccd979bdSMark Fasheh 1811ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1812ccd979bdSMark Fasheh 1813ccd979bdSMark Fasheh BUG_ON(!sb); 1814ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1815ccd979bdSMark Fasheh BUG_ON(!osb); 1816ccd979bdSMark Fasheh 181750397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 181850397507SSunil Mushran 181919ece546SJan Kara ocfs2_disable_quotas(osb); 182019ece546SJan Kara 1821ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1822ccd979bdSMark Fasheh 1823ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1824ccd979bdSMark Fasheh 182583273932SSrinivas Eeda ocfs2_orphan_scan_stop(osb); 182683273932SSrinivas Eeda 1827553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1828553abd04SJoel Becker ocfs2_recovery_exit(osb); 1829ccd979bdSMark Fasheh 1830ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1831ccd979bdSMark Fasheh 1832ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1833ccd979bdSMark Fasheh 18344670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 18354670c46dSJoel Becker * all the steps which depended on that to complete. */ 18364670c46dSJoel Becker if (osb->cconn) { 1837ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1838ccd979bdSMark Fasheh if (tmp < 0) { 1839ccd979bdSMark Fasheh mlog_errno(tmp); 1840ccd979bdSMark Fasheh return; 1841ccd979bdSMark Fasheh } 184219b613d4SMark Fasheh } 1843ccd979bdSMark Fasheh 1844ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1845ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1846ccd979bdSMark Fasheh 18474670c46dSJoel Becker if (osb->cconn) 1848ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1849ccd979bdSMark Fasheh 1850ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1851ccd979bdSMark Fasheh 18526953b4c0SJoel Becker /* 18536953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 18546953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 18556953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 18566953b4c0SJoel Becker * heartbeat. Otherwise, do it. 18576953b4c0SJoel Becker */ 18586953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1859286eaa95SJoel Becker hangup_needed = 1; 1860286eaa95SJoel Becker 1861286eaa95SJoel Becker if (osb->cconn) 1862286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1863286eaa95SJoel Becker 186473be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1865286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1866286eaa95SJoel Becker 1867286eaa95SJoel Becker if (hangup_needed) 18686953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1869ccd979bdSMark Fasheh 1870ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1871ccd979bdSMark Fasheh 1872c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1873c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1874c271c5c2SSunil Mushran else 187519fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1876c271c5c2SSunil Mushran 1877c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1878c271c5c2SSunil Mushran osb->dev_str, nodestr); 1879ccd979bdSMark Fasheh 1880ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1881ccd979bdSMark Fasheh kfree(osb); 1882ccd979bdSMark Fasheh sb->s_dev = 0; 1883ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1884ccd979bdSMark Fasheh } 1885ccd979bdSMark Fasheh 1886ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1887ccd979bdSMark Fasheh unsigned uuid_bytes) 1888ccd979bdSMark Fasheh { 1889ccd979bdSMark Fasheh int i, ret; 1890ccd979bdSMark Fasheh char *ptr; 1891ccd979bdSMark Fasheh 1892ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1893ccd979bdSMark Fasheh 1894cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1895ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1896ccd979bdSMark Fasheh return -ENOMEM; 1897ccd979bdSMark Fasheh 1898ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1899ccd979bdSMark Fasheh /* print with null */ 1900ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1901ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1902ccd979bdSMark Fasheh return -EINVAL; 1903ccd979bdSMark Fasheh /* then only advance past the last char */ 1904ccd979bdSMark Fasheh ptr += 2; 1905ccd979bdSMark Fasheh } 1906ccd979bdSMark Fasheh 1907ccd979bdSMark Fasheh return 0; 1908ccd979bdSMark Fasheh } 1909ccd979bdSMark Fasheh 1910ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1911ccd979bdSMark Fasheh struct buffer_head *bh, 191273be192bSJoel Becker int sector_size, 191373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 1914ccd979bdSMark Fasheh { 1915bddb8eb3SDenis Cheng int status; 19165a254031SMark Fasheh int i, cbits, bbits; 19175a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 1918ccd979bdSMark Fasheh struct inode *inode = NULL; 1919ccd979bdSMark Fasheh struct ocfs2_journal *journal; 1920ccd979bdSMark Fasheh __le32 uuid_net_key; 1921ccd979bdSMark Fasheh struct ocfs2_super *osb; 1922ccd979bdSMark Fasheh 1923ccd979bdSMark Fasheh mlog_entry_void(); 1924ccd979bdSMark Fasheh 1925cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 1926ccd979bdSMark Fasheh if (!osb) { 1927ccd979bdSMark Fasheh status = -ENOMEM; 1928ccd979bdSMark Fasheh mlog_errno(status); 1929ccd979bdSMark Fasheh goto bail; 1930ccd979bdSMark Fasheh } 1931ccd979bdSMark Fasheh 1932ccd979bdSMark Fasheh sb->s_fs_info = osb; 1933ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 1934ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 193519ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 193619ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 1937cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 1938e0dceaf0SMark Fasheh sb->s_time_gran = 1; 1939ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 1940ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 19415a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 19425a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 19435a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 1944ccd979bdSMark Fasheh 19459b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 19469b7895efSMark Fasheh 19479b7895efSMark Fasheh for (i = 0; i < 3; i++) 19489b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 19499b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 19509b7895efSMark Fasheh 1951ccd979bdSMark Fasheh osb->sb = sb; 1952ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 1953ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 1954ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 1955ccd979bdSMark Fasheh 195634d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 195734d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 195834d024f8SMark Fasheh osb->dc_work_sequence = 0; 195934d024f8SMark Fasheh osb->dc_wake_sequence = 0; 1960ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 1961ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 1962ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 1963c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 19644d0ddb2cSTao Ma ocfs2_init_inode_steal_slot(osb); 1965ccd979bdSMark Fasheh 1966ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 1967ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 1968ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 1969ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 1970ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 1971ccd979bdSMark Fasheh 197273be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 197373be192bSJoel Becker osb->osb_ecc_stats = *stats; 197473be192bSJoel Becker 1975ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 1976ccd979bdSMark Fasheh 1977ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 1978ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1979ccd979bdSMark Fasheh 1980553abd04SJoel Becker status = ocfs2_recovery_init(osb); 1981553abd04SJoel Becker if (status) { 1982553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 1983553abd04SJoel Becker mlog_errno(status); 1984553abd04SJoel Becker goto bail; 1985553abd04SJoel Becker } 1986ccd979bdSMark Fasheh 198783273932SSrinivas Eeda status = ocfs2_orphan_scan_init(osb); 198883273932SSrinivas Eeda if (status) { 198983273932SSrinivas Eeda mlog(ML_ERROR, "Unable to initialize delayed orphan scan\n"); 199083273932SSrinivas Eeda mlog_errno(status); 199183273932SSrinivas Eeda goto bail; 199283273932SSrinivas Eeda } 199383273932SSrinivas Eeda 1994ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 1995ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 1996ccd979bdSMark Fasheh 19977f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 19987f1a37e3STiger Yang 1999ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2000ccd979bdSMark Fasheh 20018154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 20028154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2003fdd77704STiger Yang 2004ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2005ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 20069c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2007ccd979bdSMark Fasheh 2008ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2009ccd979bdSMark Fasheh 2010ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2011ccd979bdSMark Fasheh if (!osb->vol_label) { 2012ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2013ccd979bdSMark Fasheh status = -ENOMEM; 2014ccd979bdSMark Fasheh goto bail; 2015ccd979bdSMark Fasheh } 2016ccd979bdSMark Fasheh 2017ccd979bdSMark Fasheh osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 2018ccd979bdSMark Fasheh if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 2019ccd979bdSMark Fasheh mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 2020ccd979bdSMark Fasheh osb->max_slots); 2021ccd979bdSMark Fasheh status = -EINVAL; 2022ccd979bdSMark Fasheh goto bail; 2023ccd979bdSMark Fasheh } 2024781ee3e2SSunil Mushran mlog(0, "max_slots for this device: %u\n", osb->max_slots); 2025ccd979bdSMark Fasheh 2026539d8264SSunil Mushran osb->slot_recovery_generations = 2027539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2028539d8264SSunil Mushran GFP_KERNEL); 2029539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2030539d8264SSunil Mushran status = -ENOMEM; 2031539d8264SSunil Mushran mlog_errno(status); 2032539d8264SSunil Mushran goto bail; 2033539d8264SSunil Mushran } 2034539d8264SSunil Mushran 2035b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2036b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2037b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2038b4df6ed8SMark Fasheh GFP_KERNEL); 2039b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2040b4df6ed8SMark Fasheh status = -ENOMEM; 2041b4df6ed8SMark Fasheh mlog_errno(status); 2042b4df6ed8SMark Fasheh goto bail; 2043b4df6ed8SMark Fasheh } 2044b4df6ed8SMark Fasheh 2045ccd979bdSMark Fasheh osb->s_feature_compat = 2046ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2047ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2048ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2049ccd979bdSMark Fasheh osb->s_feature_incompat = 2050ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2051ccd979bdSMark Fasheh 2052ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2053ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2054ccd979bdSMark Fasheh "optional features (%x).\n", i); 2055ccd979bdSMark Fasheh status = -EINVAL; 2056ccd979bdSMark Fasheh goto bail; 2057ccd979bdSMark Fasheh } 2058ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2059ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2060ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2061ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2062ccd979bdSMark Fasheh status = -EINVAL; 2063ccd979bdSMark Fasheh goto bail; 2064ccd979bdSMark Fasheh } 2065ccd979bdSMark Fasheh 2066b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 2067b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2068b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2069b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2070b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2071b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2072b61817e1SJoel Becker mlog(ML_ERROR, 2073b61817e1SJoel Becker "couldn't mount because of an invalid " 2074b61817e1SJoel Becker "cluster stack label (%s) \n", 2075b61817e1SJoel Becker osb->osb_cluster_stack); 2076b61817e1SJoel Becker status = -EINVAL; 2077b61817e1SJoel Becker goto bail; 2078b61817e1SJoel Becker } 2079b61817e1SJoel Becker } else { 2080b61817e1SJoel Becker /* The empty string is identical with classic tools that 2081b61817e1SJoel Becker * don't know about s_cluster_info. */ 2082b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2083b61817e1SJoel Becker } 2084b61817e1SJoel Becker 2085ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2086ccd979bdSMark Fasheh 2087ccd979bdSMark Fasheh /* FIXME 2088ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2089ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2090ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2091ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2092ccd979bdSMark Fasheh * be my guest. 2093ccd979bdSMark Fasheh */ 2094ccd979bdSMark Fasheh /* initialize our journal structure */ 2095ccd979bdSMark Fasheh 2096cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2097ccd979bdSMark Fasheh if (!journal) { 2098ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2099ccd979bdSMark Fasheh status = -ENOMEM; 2100ccd979bdSMark Fasheh goto bail; 2101ccd979bdSMark Fasheh } 2102ccd979bdSMark Fasheh osb->journal = journal; 2103ccd979bdSMark Fasheh journal->j_osb = osb; 2104ccd979bdSMark Fasheh 2105ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2106ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2107ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2108ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2109ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2110ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2111c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2112ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2113ccd979bdSMark Fasheh 2114ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2115ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2116ea455f8aSJan Kara 2117ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2118ccd979bdSMark Fasheh osb->s_clustersize_bits = 2119ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2120ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2121ccd979bdSMark Fasheh mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); 2122ccd979bdSMark Fasheh 2123ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2124ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2125ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2126ccd979bdSMark Fasheh osb->s_clustersize); 2127ccd979bdSMark Fasheh status = -EINVAL; 2128ccd979bdSMark Fasheh goto bail; 2129ccd979bdSMark Fasheh } 2130ccd979bdSMark Fasheh 2131ccd979bdSMark Fasheh if (ocfs2_clusters_to_blocks(osb->sb, le32_to_cpu(di->i_clusters) - 1) 2132ccd979bdSMark Fasheh > (u32)~0UL) { 2133ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume might try to write to blocks beyond " 2134ccd979bdSMark Fasheh "what jbd can address in 32 bits.\n"); 2135ccd979bdSMark Fasheh status = -EINVAL; 2136ccd979bdSMark Fasheh goto bail; 2137ccd979bdSMark Fasheh } 2138ccd979bdSMark Fasheh 2139ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2140ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2141ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2142ccd979bdSMark Fasheh status = -ENOMEM; 2143ccd979bdSMark Fasheh goto bail; 2144ccd979bdSMark Fasheh } 2145ccd979bdSMark Fasheh 214678427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2147ccd979bdSMark Fasheh 2148ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2149ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2150ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2151ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2152ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2153ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2154ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2155cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 2156ccd979bdSMark Fasheh mlog(0, "vol_label: %s\n", osb->vol_label); 2157ccd979bdSMark Fasheh mlog(0, "uuid: %s\n", osb->uuid_str); 2158b0697053SMark Fasheh mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", 2159b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 2160b0697053SMark Fasheh (unsigned long long)osb->system_dir_blkno); 2161ccd979bdSMark Fasheh 2162ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2163ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2164ccd979bdSMark Fasheh status = -ENOMEM; 2165ccd979bdSMark Fasheh mlog_errno(status); 2166ccd979bdSMark Fasheh goto bail; 2167ccd979bdSMark Fasheh } 2168ccd979bdSMark Fasheh 2169ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2170ccd979bdSMark Fasheh 2171ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2172ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2173ccd979bdSMark Fasheh if (status < 0) { 2174ccd979bdSMark Fasheh mlog_errno(status); 2175ccd979bdSMark Fasheh goto bail; 2176ccd979bdSMark Fasheh } 2177ccd979bdSMark Fasheh 2178ccd979bdSMark Fasheh /* 2179ccd979bdSMark Fasheh * global bitmap 2180ccd979bdSMark Fasheh */ 2181ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2182ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2183ccd979bdSMark Fasheh if (!inode) { 2184ccd979bdSMark Fasheh status = -EINVAL; 2185ccd979bdSMark Fasheh mlog_errno(status); 2186ccd979bdSMark Fasheh goto bail; 2187ccd979bdSMark Fasheh } 2188ccd979bdSMark Fasheh 2189ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 2190ccd979bdSMark Fasheh iput(inode); 2191ccd979bdSMark Fasheh 2192e9d578a8STao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb) * 8; 2193ccd979bdSMark Fasheh 2194ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2195ccd979bdSMark Fasheh if (status < 0) { 2196ccd979bdSMark Fasheh mlog_errno(status); 2197ccd979bdSMark Fasheh goto bail; 2198ccd979bdSMark Fasheh } 2199ccd979bdSMark Fasheh 2200ccd979bdSMark Fasheh bail: 2201ccd979bdSMark Fasheh mlog_exit(status); 2202ccd979bdSMark Fasheh return status; 2203ccd979bdSMark Fasheh } 2204ccd979bdSMark Fasheh 2205ccd979bdSMark Fasheh /* 2206ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2207ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2208ccd979bdSMark Fasheh * 0 on success 2209ccd979bdSMark Fasheh */ 2210ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2211ccd979bdSMark Fasheh struct buffer_head *bh, 221273be192bSJoel Becker u32 blksz, 221373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2214ccd979bdSMark Fasheh { 2215ccd979bdSMark Fasheh int status = -EAGAIN; 2216ccd979bdSMark Fasheh 2217ccd979bdSMark Fasheh mlog_entry_void(); 2218ccd979bdSMark Fasheh 2219ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2220ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2221d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2222d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2223d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2224d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2225d030cc97SJoel Becker bh->b_size, 222673be192bSJoel Becker &di->i_check, 222773be192bSJoel Becker stats); 2228d030cc97SJoel Becker if (status) 2229d030cc97SJoel Becker goto out; 2230d030cc97SJoel Becker } 2231ccd979bdSMark Fasheh status = -EINVAL; 2232ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2233ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2234ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2235ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2236ccd979bdSMark Fasheh blksz); 2237ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2238ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2239ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2240ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2241ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2242ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2243ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2244ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2245ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2246ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2247ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2248ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2249b0697053SMark Fasheh "found %llu, should be %llu\n", 22501ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2251b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2252ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2253ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2254ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2255ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2256ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2257ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2258ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2259ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2260ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2261ccd979bdSMark Fasheh mlog(ML_ERROR, 2262ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2263ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2264ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2265ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2266ccd979bdSMark Fasheh } else { 2267ccd979bdSMark Fasheh /* found it! */ 2268ccd979bdSMark Fasheh status = 0; 2269ccd979bdSMark Fasheh } 2270ccd979bdSMark Fasheh } 2271ccd979bdSMark Fasheh 2272d030cc97SJoel Becker out: 2273ccd979bdSMark Fasheh mlog_exit(status); 2274ccd979bdSMark Fasheh return status; 2275ccd979bdSMark Fasheh } 2276ccd979bdSMark Fasheh 2277ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2278ccd979bdSMark Fasheh { 2279bddb8eb3SDenis Cheng int status; 2280ccd979bdSMark Fasheh int dirty; 2281c271c5c2SSunil Mushran int local; 2282ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2283ccd979bdSMark Fasheh * recover 2284ccd979bdSMark Fasheh * ourselves. */ 2285ccd979bdSMark Fasheh 2286ccd979bdSMark Fasheh mlog_entry_void(); 2287ccd979bdSMark Fasheh 2288ccd979bdSMark Fasheh /* Init our journal object. */ 2289ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2290ccd979bdSMark Fasheh if (status < 0) { 2291ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2292ccd979bdSMark Fasheh goto finally; 2293ccd979bdSMark Fasheh } 2294ccd979bdSMark Fasheh 2295ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2296ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2297ccd979bdSMark Fasheh * dirty work for us :) */ 2298ccd979bdSMark Fasheh if (!dirty) { 2299ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2300ccd979bdSMark Fasheh if (status < 0) { 2301ccd979bdSMark Fasheh mlog_errno(status); 2302ccd979bdSMark Fasheh goto finally; 2303ccd979bdSMark Fasheh } 2304ccd979bdSMark Fasheh } else { 2305ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2306ccd979bdSMark Fasheh "recovering volume.\n"); 2307ccd979bdSMark Fasheh } 2308ccd979bdSMark Fasheh 2309c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2310c271c5c2SSunil Mushran 2311ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2312539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 231301af4820SWengang Wang if (status < 0) { 231401af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 231501af4820SWengang Wang goto finally; 231601af4820SWengang Wang } 2317ccd979bdSMark Fasheh 2318ccd979bdSMark Fasheh if (dirty) { 2319ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2320ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2321ccd979bdSMark Fasheh osb->slot_num, 2322ccd979bdSMark Fasheh &local_alloc); 2323ccd979bdSMark Fasheh if (status < 0) { 2324ccd979bdSMark Fasheh mlog_errno(status); 2325ccd979bdSMark Fasheh goto finally; 2326ccd979bdSMark Fasheh } 2327ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2328ccd979bdSMark Fasheh * ourselves as mounted. */ 2329ccd979bdSMark Fasheh } 2330ccd979bdSMark Fasheh 2331ccd979bdSMark Fasheh mlog(0, "Journal loaded.\n"); 2332ccd979bdSMark Fasheh 2333ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2334ccd979bdSMark Fasheh if (status < 0) { 2335ccd979bdSMark Fasheh mlog_errno(status); 2336ccd979bdSMark Fasheh goto finally; 2337ccd979bdSMark Fasheh } 2338ccd979bdSMark Fasheh 2339ccd979bdSMark Fasheh if (dirty) { 2340ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2341ccd979bdSMark Fasheh * rest of the volume. */ 2342ccd979bdSMark Fasheh osb->dirty = 1; 2343ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2344ccd979bdSMark Fasheh local_alloc = NULL; 2345ccd979bdSMark Fasheh } 2346ccd979bdSMark Fasheh 2347ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2348ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2349ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2350ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 23519140db04SSrinivas Eeda if (status < 0) { 23529140db04SSrinivas Eeda mlog_errno(status); 23539140db04SSrinivas Eeda goto finally; 23549140db04SSrinivas Eeda } 23559140db04SSrinivas Eeda 23569140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2357ccd979bdSMark Fasheh if (status < 0) 2358ccd979bdSMark Fasheh mlog_errno(status); 2359ccd979bdSMark Fasheh 2360ccd979bdSMark Fasheh finally: 2361ccd979bdSMark Fasheh if (local_alloc) 2362ccd979bdSMark Fasheh kfree(local_alloc); 2363ccd979bdSMark Fasheh 2364ccd979bdSMark Fasheh mlog_exit(status); 2365ccd979bdSMark Fasheh return status; 2366ccd979bdSMark Fasheh } 2367ccd979bdSMark Fasheh 2368ccd979bdSMark Fasheh /* 2369ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2370ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2371ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2372ccd979bdSMark Fasheh * initialized resources and fileobject. 2373ccd979bdSMark Fasheh */ 2374ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2375ccd979bdSMark Fasheh { 2376ccd979bdSMark Fasheh mlog_entry_void(); 2377ccd979bdSMark Fasheh 2378ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2379ccd979bdSMark Fasheh 23808e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2381ccd979bdSMark Fasheh 2382b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2383539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2384ccd979bdSMark Fasheh /* FIXME 2385ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2386ccd979bdSMark Fasheh * allocate osb->journal at the start of ocfs2_initalize_osb(), 2387ccd979bdSMark Fasheh * we free it here. 2388ccd979bdSMark Fasheh */ 2389ccd979bdSMark Fasheh kfree(osb->journal); 2390ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2391ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2392ccd979bdSMark Fasheh kfree(osb->uuid_str); 2393ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2394ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2395ccd979bdSMark Fasheh 2396ccd979bdSMark Fasheh mlog_exit_void(); 2397ccd979bdSMark Fasheh } 2398ccd979bdSMark Fasheh 2399ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2400ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2401ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2402ccd979bdSMark Fasheh { 2403ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2404ccd979bdSMark Fasheh 2405ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2406ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2407ccd979bdSMark Fasheh sb->s_id); 2408ccd979bdSMark Fasheh 2409ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2410ccd979bdSMark Fasheh 2411ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2412ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2413ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2414ccd979bdSMark Fasheh return; 2415ccd979bdSMark Fasheh 2416ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2417ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2418ccd979bdSMark Fasheh "system is unmounted.\n"); 2419ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2420ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2421ccd979bdSMark Fasheh } 2422ccd979bdSMark Fasheh 2423ccd979bdSMark Fasheh static char error_buf[1024]; 2424ccd979bdSMark Fasheh 2425ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2426ccd979bdSMark Fasheh const char *function, 2427ccd979bdSMark Fasheh const char *fmt, ...) 2428ccd979bdSMark Fasheh { 2429ccd979bdSMark Fasheh va_list args; 2430ccd979bdSMark Fasheh 2431ccd979bdSMark Fasheh va_start(args, fmt); 24324a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2433ccd979bdSMark Fasheh va_end(args); 2434ccd979bdSMark Fasheh 2435ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2436ccd979bdSMark Fasheh * function the error came from. */ 2437ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2438ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2439ccd979bdSMark Fasheh 2440ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2441ccd979bdSMark Fasheh } 2442ccd979bdSMark Fasheh 2443ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2444ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2445ccd979bdSMark Fasheh * etc. */ 2446ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2447ccd979bdSMark Fasheh const char *function, 2448ccd979bdSMark Fasheh const char *fmt, ...) 2449ccd979bdSMark Fasheh { 2450ccd979bdSMark Fasheh va_list args; 2451ccd979bdSMark Fasheh 2452ccd979bdSMark Fasheh va_start(args, fmt); 24534a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2454ccd979bdSMark Fasheh va_end(args); 2455ccd979bdSMark Fasheh 2456ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2457ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2458ccd979bdSMark Fasheh 2459ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2460ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2461ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2462ccd979bdSMark Fasheh * errors. 2463ccd979bdSMark Fasheh * 2464ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2465ccd979bdSMark Fasheh * that our slot needs recovery. */ 2466ccd979bdSMark Fasheh 2467ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2468ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2469ccd979bdSMark Fasheh * here. */ 2470ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2471ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2472ccd979bdSMark Fasheh } 2473ccd979bdSMark Fasheh 2474ccd979bdSMark Fasheh module_init(ocfs2_init); 2475ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2476