1ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 2ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 3ccd979bdSMark Fasheh * 4ccd979bdSMark Fasheh * super.c 5ccd979bdSMark Fasheh * 6ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 7ccd979bdSMark Fasheh * 8ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 9ccd979bdSMark Fasheh * 10ccd979bdSMark Fasheh * This program is free software; you can redistribute it and/or 11ccd979bdSMark Fasheh * modify it under the terms of the GNU General Public 12ccd979bdSMark Fasheh * License as published by the Free Software Foundation; either 13ccd979bdSMark Fasheh * version 2 of the License, or (at your option) any later version. 14ccd979bdSMark Fasheh * 15ccd979bdSMark Fasheh * This program is distributed in the hope that it will be useful, 16ccd979bdSMark Fasheh * but WITHOUT ANY WARRANTY; without even the implied warranty of 17ccd979bdSMark Fasheh * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18ccd979bdSMark Fasheh * General Public License for more details. 19ccd979bdSMark Fasheh * 20ccd979bdSMark Fasheh * You should have received a copy of the GNU General Public 21ccd979bdSMark Fasheh * License along with this program; if not, write to the 22ccd979bdSMark Fasheh * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23ccd979bdSMark Fasheh * Boston, MA 021110-1307, USA. 24ccd979bdSMark Fasheh */ 25ccd979bdSMark Fasheh 26ccd979bdSMark Fasheh #include <linux/module.h> 27ccd979bdSMark Fasheh #include <linux/fs.h> 28ccd979bdSMark Fasheh #include <linux/types.h> 29ccd979bdSMark Fasheh #include <linux/slab.h> 30ccd979bdSMark Fasheh #include <linux/highmem.h> 31ccd979bdSMark Fasheh #include <linux/init.h> 32ccd979bdSMark Fasheh #include <linux/random.h> 33ccd979bdSMark Fasheh #include <linux/statfs.h> 34ccd979bdSMark Fasheh #include <linux/moduleparam.h> 35ccd979bdSMark Fasheh #include <linux/blkdev.h> 36ccd979bdSMark Fasheh #include <linux/socket.h> 37ccd979bdSMark Fasheh #include <linux/inet.h> 38ccd979bdSMark Fasheh #include <linux/parser.h> 39ccd979bdSMark Fasheh #include <linux/crc32.h> 40ccd979bdSMark Fasheh #include <linux/debugfs.h> 41d550071cSSunil Mushran #include <linux/mount.h> 426953b4c0SJoel Becker #include <linux/seq_file.h> 4319ece546SJan Kara #include <linux/quotaops.h> 44337eb00aSAlessio Igor Bogani #include <linux/smp_lock.h> 45ccd979bdSMark Fasheh 46ccd979bdSMark Fasheh #define MLOG_MASK_PREFIX ML_SUPER 47ccd979bdSMark Fasheh #include <cluster/masklog.h> 48ccd979bdSMark Fasheh 49ccd979bdSMark Fasheh #include "ocfs2.h" 50ccd979bdSMark Fasheh 51ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 52ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 53ccd979bdSMark Fasheh 54ccd979bdSMark Fasheh #include "alloc.h" 55d030cc97SJoel Becker #include "blockcheck.h" 56ccd979bdSMark Fasheh #include "dlmglue.h" 57ccd979bdSMark Fasheh #include "export.h" 58ccd979bdSMark Fasheh #include "extent_map.h" 59ccd979bdSMark Fasheh #include "heartbeat.h" 60ccd979bdSMark Fasheh #include "inode.h" 61ccd979bdSMark Fasheh #include "journal.h" 62ccd979bdSMark Fasheh #include "localalloc.h" 63ccd979bdSMark Fasheh #include "namei.h" 64ccd979bdSMark Fasheh #include "slot_map.h" 65ccd979bdSMark Fasheh #include "super.h" 66ccd979bdSMark Fasheh #include "sysfile.h" 67ccd979bdSMark Fasheh #include "uptodate.h" 68ccd979bdSMark Fasheh #include "ver.h" 69cf1d6c76STiger Yang #include "xattr.h" 709e33d69fSJan Kara #include "quota.h" 71374a263eSTao Ma #include "refcounttree.h" 72b89c5428STiger Yang #include "suballoc.h" 73ccd979bdSMark Fasheh 74ccd979bdSMark Fasheh #include "buffer_head_io.h" 75ccd979bdSMark Fasheh 76e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 779e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 789e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 79ccd979bdSMark Fasheh 80ccd979bdSMark Fasheh /* OCFS2 needs to schedule several differnt types of work which 81ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 82ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 83ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 84ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 85ccd979bdSMark Fasheh 86ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 87ccd979bdSMark Fasheh 88ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 89ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 90ccd979bdSMark Fasheh 91c0123adeSTiger Yang struct mount_options 92c0123adeSTiger Yang { 93d147b3d6SMark Fasheh unsigned long commit_interval; 94c0123adeSTiger Yang unsigned long mount_opt; 95c0123adeSTiger Yang unsigned int atime_quantum; 96c0123adeSTiger Yang signed short slot; 9773c8a800SMark Fasheh int localalloc_opt; 98d02f00ccSMark Fasheh unsigned int resv_level; 9983f92318SMark Fasheh int dir_resv_level; 100b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 101c0123adeSTiger Yang }; 102c0123adeSTiger Yang 103ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 104c0123adeSTiger Yang struct mount_options *mopt, 105baf4661aSSunil Mushran int is_remount); 1065297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 1075297aad8SJan Kara struct mount_options *options); 108d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 109ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 110ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 111ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 112ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 113ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 114ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 115ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 116ccd979bdSMark Fasheh 117726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 118ccd979bdSMark Fasheh 119ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 120ccd979bdSMark Fasheh 121ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 122ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 123bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 124ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 125ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 126ccd979bdSMark Fasheh struct buffer_head *bh, 12773be192bSJoel Becker u32 sectsize, 12873be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 129ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 130ccd979bdSMark Fasheh struct buffer_head *bh, 13173be192bSJoel Becker int sector_size, 13273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 133ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 134ccd979bdSMark Fasheh struct buffer_head **bh, 135ccd979bdSMark Fasheh int block, 136ccd979bdSMark Fasheh int sect_size); 137ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 138ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 13919ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 14019ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 14119ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 142ccd979bdSMark Fasheh 143ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 144ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 145ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 146ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 147ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 148066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 149ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 150ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 151ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 152d550071cSSunil Mushran .show_options = ocfs2_show_options, 1539e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1549e33d69fSJan Kara .quota_write = ocfs2_quota_write, 155ccd979bdSMark Fasheh }; 156ccd979bdSMark Fasheh 157ccd979bdSMark Fasheh enum { 158ccd979bdSMark Fasheh Opt_barrier, 159ccd979bdSMark Fasheh Opt_err_panic, 160ccd979bdSMark Fasheh Opt_err_ro, 161ccd979bdSMark Fasheh Opt_intr, 162ccd979bdSMark Fasheh Opt_nointr, 163ccd979bdSMark Fasheh Opt_hb_none, 164ccd979bdSMark Fasheh Opt_hb_local, 165ccd979bdSMark Fasheh Opt_data_ordered, 166ccd979bdSMark Fasheh Opt_data_writeback, 1677f1a37e3STiger Yang Opt_atime_quantum, 168baf4661aSSunil Mushran Opt_slot, 169d147b3d6SMark Fasheh Opt_commit, 1702fbe8d1eSSunil Mushran Opt_localalloc, 17153fc622bSMark Fasheh Opt_localflocks, 172b61817e1SJoel Becker Opt_stack, 173cf1d6c76STiger Yang Opt_user_xattr, 174cf1d6c76STiger Yang Opt_nouser_xattr, 17512462f1dSJoel Becker Opt_inode64, 176a68979b8STiger Yang Opt_acl, 177a68979b8STiger Yang Opt_noacl, 17819ece546SJan Kara Opt_usrquota, 17919ece546SJan Kara Opt_grpquota, 180d02f00ccSMark Fasheh Opt_resv_level, 18183f92318SMark Fasheh Opt_dir_resv_level, 182ccd979bdSMark Fasheh Opt_err, 183ccd979bdSMark Fasheh }; 184ccd979bdSMark Fasheh 185a447c093SSteven Whitehouse static const match_table_t tokens = { 186ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 187ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 188ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 189ccd979bdSMark Fasheh {Opt_intr, "intr"}, 190ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 191ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 192ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 193ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 194ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1957f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 196baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 197d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1982fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19953fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 200b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 201cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 202cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 20312462f1dSJoel Becker {Opt_inode64, "inode64"}, 204a68979b8STiger Yang {Opt_acl, "acl"}, 205a68979b8STiger Yang {Opt_noacl, "noacl"}, 20619ece546SJan Kara {Opt_usrquota, "usrquota"}, 20719ece546SJan Kara {Opt_grpquota, "grpquota"}, 208d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 20983f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 210ccd979bdSMark Fasheh {Opt_err, NULL} 211ccd979bdSMark Fasheh }; 212ccd979bdSMark Fasheh 21350397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 21450397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 21550397507SSunil Mushran { 21650397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 21750397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 218df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 219df152c24SSunil Mushran int i, out = 0; 22050397507SSunil Mushran 22150397507SSunil Mushran out += snprintf(buf + out, len - out, 22250397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 22350397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 22450397507SSunil Mushran osb->fs_generation, osb->vol_label); 22550397507SSunil Mushran 22650397507SSunil Mushran out += snprintf(buf + out, len - out, 22750397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 22850397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 22950397507SSunil Mushran 23050397507SSunil Mushran out += snprintf(buf + out, len - out, 23150397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 23250397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 23350397507SSunil Mushran 23450397507SSunil Mushran out += snprintf(buf + out, len - out, 23550397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 23650397507SSunil Mushran "ROcompat: 0x%X\n", 23750397507SSunil Mushran "Features", osb->s_feature_compat, 23850397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 23950397507SSunil Mushran 24050397507SSunil Mushran out += snprintf(buf + out, len - out, 24150397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 24250397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 24350397507SSunil Mushran 244c3d38840SSunil Mushran if (cconn) { 24550397507SSunil Mushran out += snprintf(buf + out, len - out, 246c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 247c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 24850397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 24950397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 25050397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 251c3d38840SSunil Mushran cconn->cc_version.pv_major, 252c3d38840SSunil Mushran cconn->cc_version.pv_minor); 253c3d38840SSunil Mushran } 25450397507SSunil Mushran 25550397507SSunil Mushran spin_lock(&osb->dc_task_lock); 25650397507SSunil Mushran out += snprintf(buf + out, len - out, 25750397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 25850397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 259c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 260c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 261c3d38840SSunil Mushran osb->dc_work_sequence); 26250397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 26350397507SSunil Mushran 26450397507SSunil Mushran spin_lock(&osb->osb_lock); 26550397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 26650397507SSunil Mushran "Recovery", 26750397507SSunil Mushran (osb->recovery_thread_task ? 26850397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 26950397507SSunil Mushran if (rm->rm_used == 0) 27050397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 27150397507SSunil Mushran else { 27250397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 27350397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 27450397507SSunil Mushran rm->rm_entries[i]); 27550397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 27650397507SSunil Mushran } 27750397507SSunil Mushran spin_unlock(&osb->osb_lock); 27850397507SSunil Mushran 27950397507SSunil Mushran out += snprintf(buf + out, len - out, 28050397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 281c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 282c3d38840SSunil Mushran osb->osb_commit_interval, 28350397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 28450397507SSunil Mushran 28550397507SSunil Mushran out += snprintf(buf + out, len - out, 286c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 28750397507SSunil Mushran "Journal", osb->journal->j_state, 288c3d38840SSunil Mushran osb->journal->j_trans_id, 289c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 29050397507SSunil Mushran 29150397507SSunil Mushran out += snprintf(buf + out, len - out, 29250397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 29350397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 29450397507SSunil Mushran "Stats", 29550397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 29650397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 29750397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 29850397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 29950397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 30050397507SSunil Mushran 30150397507SSunil Mushran out += snprintf(buf + out, len - out, 30250397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 30350397507SSunil Mushran "Default: %u bits\n", 30450397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 30550397507SSunil Mushran (unsigned long long)osb->la_last_gd, 30650397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 30750397507SSunil Mushran 30850397507SSunil Mushran spin_lock(&osb->osb_lock); 30950397507SSunil Mushran out += snprintf(buf + out, len - out, 310b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 311b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 31250397507SSunil Mushran osb->s_inode_steal_slot, 313b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 314b89c5428STiger Yang osb->s_meta_steal_slot, 315b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 31650397507SSunil Mushran spin_unlock(&osb->osb_lock); 31750397507SSunil Mushran 318df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 319df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 320df152c24SSunil Mushran os->os_count, os->os_seqno); 321df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 322df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 323df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 324df152c24SSunil Mushran else 325df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 326df152c24SSunil Mushran (get_seconds() - os->os_scantime.tv_sec)); 327df152c24SSunil Mushran 32850397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 32950397507SSunil Mushran "Slots", "Num", "RecoGen"); 33050397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 33150397507SSunil Mushran out += snprintf(buf + out, len - out, 33250397507SSunil Mushran "%10s %c %3d %10d\n", 33350397507SSunil Mushran " ", 33450397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 33550397507SSunil Mushran i, osb->slot_recovery_generations[i]); 33650397507SSunil Mushran } 33750397507SSunil Mushran 33850397507SSunil Mushran return out; 33950397507SSunil Mushran } 34050397507SSunil Mushran 34150397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 34250397507SSunil Mushran { 34350397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 34450397507SSunil Mushran char *buf = NULL; 34550397507SSunil Mushran 34650397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 34750397507SSunil Mushran if (!buf) 34850397507SSunil Mushran goto bail; 34950397507SSunil Mushran 35050397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 35150397507SSunil Mushran 35250397507SSunil Mushran file->private_data = buf; 35350397507SSunil Mushran 35450397507SSunil Mushran return 0; 35550397507SSunil Mushran bail: 35650397507SSunil Mushran return -ENOMEM; 35750397507SSunil Mushran } 35850397507SSunil Mushran 35950397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36050397507SSunil Mushran { 36150397507SSunil Mushran kfree(file->private_data); 36250397507SSunil Mushran return 0; 36350397507SSunil Mushran } 36450397507SSunil Mushran 36550397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 36650397507SSunil Mushran size_t nbytes, loff_t *ppos) 36750397507SSunil Mushran { 36850397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 36950397507SSunil Mushran i_size_read(file->f_mapping->host)); 37050397507SSunil Mushran } 37150397507SSunil Mushran #else 37250397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 37350397507SSunil Mushran { 37450397507SSunil Mushran return 0; 37550397507SSunil Mushran } 37650397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 37750397507SSunil Mushran { 37850397507SSunil Mushran return 0; 37950397507SSunil Mushran } 38050397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 38150397507SSunil Mushran size_t nbytes, loff_t *ppos) 38250397507SSunil Mushran { 38350397507SSunil Mushran return 0; 38450397507SSunil Mushran } 38550397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 38650397507SSunil Mushran 387828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 38850397507SSunil Mushran .open = ocfs2_osb_debug_open, 38950397507SSunil Mushran .release = ocfs2_debug_release, 39050397507SSunil Mushran .read = ocfs2_debug_read, 39150397507SSunil Mushran .llseek = generic_file_llseek, 39250397507SSunil Mushran }; 39350397507SSunil Mushran 394ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 395ccd979bdSMark Fasheh { 396bddb8eb3SDenis Cheng int status; 397ccd979bdSMark Fasheh tid_t target; 398ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 399ccd979bdSMark Fasheh 400ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 401ccd979bdSMark Fasheh return -EROFS; 402ccd979bdSMark Fasheh 403ccd979bdSMark Fasheh if (wait) { 404ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 405ccd979bdSMark Fasheh if (status < 0) 406ccd979bdSMark Fasheh mlog_errno(status); 407ccd979bdSMark Fasheh } else { 408ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 409ccd979bdSMark Fasheh } 410ccd979bdSMark Fasheh 4112b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 4122b4e30fbSJoel Becker &target)) { 413ccd979bdSMark Fasheh if (wait) 4142b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 415ccd979bdSMark Fasheh target); 416ccd979bdSMark Fasheh } 417ccd979bdSMark Fasheh return 0; 418ccd979bdSMark Fasheh } 419ccd979bdSMark Fasheh 4201a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4211a224ad1SJan Kara { 4221a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4231a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4241a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4251a224ad1SJan Kara return 0; 4261a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4271a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4281a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4291a224ad1SJan Kara return 0; 4301a224ad1SJan Kara return 1; 4311a224ad1SJan Kara } 4321a224ad1SJan Kara 433ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 434ccd979bdSMark Fasheh { 435ccd979bdSMark Fasheh struct inode *new = NULL; 436ccd979bdSMark Fasheh int status = 0; 437ccd979bdSMark Fasheh int i; 438ccd979bdSMark Fasheh 439ccd979bdSMark Fasheh mlog_entry_void(); 440ccd979bdSMark Fasheh 4415fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 442ccd979bdSMark Fasheh if (IS_ERR(new)) { 443ccd979bdSMark Fasheh status = PTR_ERR(new); 444ccd979bdSMark Fasheh mlog_errno(status); 445ccd979bdSMark Fasheh goto bail; 446ccd979bdSMark Fasheh } 447ccd979bdSMark Fasheh osb->root_inode = new; 448ccd979bdSMark Fasheh 4495fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 450ccd979bdSMark Fasheh if (IS_ERR(new)) { 451ccd979bdSMark Fasheh status = PTR_ERR(new); 452ccd979bdSMark Fasheh mlog_errno(status); 453ccd979bdSMark Fasheh goto bail; 454ccd979bdSMark Fasheh } 455ccd979bdSMark Fasheh osb->sys_root_inode = new; 456ccd979bdSMark Fasheh 457ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 458ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4591a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4601a224ad1SJan Kara continue; 461ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 462ccd979bdSMark Fasheh if (!new) { 463ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 464ccd979bdSMark Fasheh status = -EINVAL; 465ccd979bdSMark Fasheh mlog_errno(status); 466ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 467ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 468ccd979bdSMark Fasheh "possibly corrupt fs?", i); 469ccd979bdSMark Fasheh goto bail; 470ccd979bdSMark Fasheh } 471ccd979bdSMark Fasheh // the array now has one ref, so drop this one 472ccd979bdSMark Fasheh iput(new); 473ccd979bdSMark Fasheh } 474ccd979bdSMark Fasheh 475ccd979bdSMark Fasheh bail: 476ccd979bdSMark Fasheh mlog_exit(status); 477ccd979bdSMark Fasheh return status; 478ccd979bdSMark Fasheh } 479ccd979bdSMark Fasheh 480ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 481ccd979bdSMark Fasheh { 482ccd979bdSMark Fasheh struct inode *new = NULL; 483ccd979bdSMark Fasheh int status = 0; 484ccd979bdSMark Fasheh int i; 485ccd979bdSMark Fasheh 486ccd979bdSMark Fasheh mlog_entry_void(); 487ccd979bdSMark Fasheh 488ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 489ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 490ccd979bdSMark Fasheh i++) { 4911a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4921a224ad1SJan Kara continue; 493ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 494ccd979bdSMark Fasheh if (!new) { 495ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 496ccd979bdSMark Fasheh status = -EINVAL; 497ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 498ccd979bdSMark Fasheh status, i, osb->slot_num); 499ccd979bdSMark Fasheh goto bail; 500ccd979bdSMark Fasheh } 501ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 502ccd979bdSMark Fasheh iput(new); 503ccd979bdSMark Fasheh } 504ccd979bdSMark Fasheh 505ccd979bdSMark Fasheh bail: 506ccd979bdSMark Fasheh mlog_exit(status); 507ccd979bdSMark Fasheh return status; 508ccd979bdSMark Fasheh } 509ccd979bdSMark Fasheh 510bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 511ccd979bdSMark Fasheh { 512bddb8eb3SDenis Cheng int i; 513ccd979bdSMark Fasheh struct inode *inode; 514ccd979bdSMark Fasheh 515ccd979bdSMark Fasheh mlog_entry_void(); 516ccd979bdSMark Fasheh 517ccd979bdSMark Fasheh for (i = 0; i < NUM_SYSTEM_INODES; i++) { 518ccd979bdSMark Fasheh inode = osb->system_inodes[i]; 519ccd979bdSMark Fasheh if (inode) { 520ccd979bdSMark Fasheh iput(inode); 521ccd979bdSMark Fasheh osb->system_inodes[i] = NULL; 522ccd979bdSMark Fasheh } 523ccd979bdSMark Fasheh } 524ccd979bdSMark Fasheh 525ccd979bdSMark Fasheh inode = osb->sys_root_inode; 526ccd979bdSMark Fasheh if (inode) { 527ccd979bdSMark Fasheh iput(inode); 528ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 529ccd979bdSMark Fasheh } 530ccd979bdSMark Fasheh 531ccd979bdSMark Fasheh inode = osb->root_inode; 532ccd979bdSMark Fasheh if (inode) { 533ccd979bdSMark Fasheh iput(inode); 534ccd979bdSMark Fasheh osb->root_inode = NULL; 535ccd979bdSMark Fasheh } 536ccd979bdSMark Fasheh 537bddb8eb3SDenis Cheng mlog_exit(0); 538ccd979bdSMark Fasheh } 539ccd979bdSMark Fasheh 540ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 541ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 542ccd979bdSMark Fasheh { 543ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 544ccd979bdSMark Fasheh 545e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 546ccd979bdSMark Fasheh if (!oi) 547ccd979bdSMark Fasheh return NULL; 548ccd979bdSMark Fasheh 5492b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 550ccd979bdSMark Fasheh return &oi->vfs_inode; 551ccd979bdSMark Fasheh } 552ccd979bdSMark Fasheh 553ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 554ccd979bdSMark Fasheh { 555ccd979bdSMark Fasheh kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 556ccd979bdSMark Fasheh } 557ccd979bdSMark Fasheh 5585a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5595a254031SMark Fasheh unsigned int cbits) 560ccd979bdSMark Fasheh { 5615a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5625a254031SMark Fasheh unsigned int trim = bytes; 5635a254031SMark Fasheh unsigned int bitshift = 32; 564ccd979bdSMark Fasheh 5655a254031SMark Fasheh /* 5665a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5675a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5685a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 569ccd979bdSMark Fasheh */ 570ccd979bdSMark Fasheh 571ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 57290c699a9SBartlomiej Zolnierkiewicz # if defined(CONFIG_LBDAF) 5732ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5745a254031SMark Fasheh /* 5755a254031SMark Fasheh * We might be limited by page cache size. 5765a254031SMark Fasheh */ 5775a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 5785a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 5795a254031SMark Fasheh trim = 1; 5805a254031SMark Fasheh /* 5815a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5825a254031SMark Fasheh * MAX_LFS_FILESIZE 5835a254031SMark Fasheh */ 5845a254031SMark Fasheh bitshift = 31; 5855a254031SMark Fasheh } 586ccd979bdSMark Fasheh # else 5875a254031SMark Fasheh /* 5885a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 5895a254031SMark Fasheh * that's what we expose to the VFS. 5905a254031SMark Fasheh */ 5915a254031SMark Fasheh bytes = 1 << bbits; 5925a254031SMark Fasheh trim = 1; 5935a254031SMark Fasheh bitshift = 31; 594ccd979bdSMark Fasheh # endif 595ccd979bdSMark Fasheh #endif 596ccd979bdSMark Fasheh 5975a254031SMark Fasheh /* 5985a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 5995a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 6005a254031SMark Fasheh * an extent start is at the max offset. 6015a254031SMark Fasheh */ 6025a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 603ccd979bdSMark Fasheh } 604ccd979bdSMark Fasheh 605ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 606ccd979bdSMark Fasheh { 607ccd979bdSMark Fasheh int incompat_features; 608ccd979bdSMark Fasheh int ret = 0; 609c0123adeSTiger Yang struct mount_options parsed_options; 610ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 611ccd979bdSMark Fasheh 612337eb00aSAlessio Igor Bogani lock_kernel(); 613337eb00aSAlessio Igor Bogani 6145297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6155297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 616ccd979bdSMark Fasheh ret = -EINVAL; 617ccd979bdSMark Fasheh goto out; 618ccd979bdSMark Fasheh } 619ccd979bdSMark Fasheh 620ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != 621c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 622ccd979bdSMark Fasheh ret = -EINVAL; 623ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 624ccd979bdSMark Fasheh goto out; 625ccd979bdSMark Fasheh } 626ccd979bdSMark Fasheh 627ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 628c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 629ccd979bdSMark Fasheh ret = -EINVAL; 630ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 631ccd979bdSMark Fasheh goto out; 632ccd979bdSMark Fasheh } 633ccd979bdSMark Fasheh 63412462f1dSJoel Becker /* Probably don't want this on remount; it might 63512462f1dSJoel Becker * mess with other nodes */ 63612462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 63712462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 63812462f1dSJoel Becker ret = -EINVAL; 63912462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 64012462f1dSJoel Becker goto out; 64112462f1dSJoel Becker } 64212462f1dSJoel Becker 643ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 644ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 64519ece546SJan Kara /* Disable quota accounting before remounting RO */ 64619ece546SJan Kara if (*flags & MS_RDONLY) { 64719ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 64819ece546SJan Kara if (ret < 0) 64919ece546SJan Kara goto out; 65019ece546SJan Kara } 651ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 652ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 653ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 654ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 655ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 656ccd979bdSMark Fasheh ret = -EROFS; 657ccd979bdSMark Fasheh goto unlock_osb; 658ccd979bdSMark Fasheh } 659ccd979bdSMark Fasheh 660ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 661ccd979bdSMark Fasheh mlog(0, "Going to ro mode.\n"); 662ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 663ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 664ccd979bdSMark Fasheh } else { 665ccd979bdSMark Fasheh mlog(0, "Making ro filesystem writeable.\n"); 666ccd979bdSMark Fasheh 667ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 668ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 669ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 670ccd979bdSMark Fasheh ret = -EROFS; 671ccd979bdSMark Fasheh goto unlock_osb; 672ccd979bdSMark Fasheh } 673ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 674ccd979bdSMark Fasheh if (incompat_features) { 675ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 676ccd979bdSMark Fasheh "of unsupported optional features " 677ccd979bdSMark Fasheh "(%x).\n", incompat_features); 678ccd979bdSMark Fasheh ret = -EINVAL; 679ccd979bdSMark Fasheh goto unlock_osb; 680ccd979bdSMark Fasheh } 681ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 682ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 683ccd979bdSMark Fasheh } 684ccd979bdSMark Fasheh unlock_osb: 685ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 68619ece546SJan Kara /* Enable quota accounting after remounting RW */ 68719ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 68819ece546SJan Kara if (sb_any_quota_suspended(sb)) 68919ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 69019ece546SJan Kara else 69119ece546SJan Kara ret = ocfs2_enable_quotas(osb); 69219ece546SJan Kara if (ret < 0) { 69319ece546SJan Kara /* Return back changes... */ 69419ece546SJan Kara spin_lock(&osb->osb_lock); 69519ece546SJan Kara sb->s_flags |= MS_RDONLY; 69619ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 69719ece546SJan Kara spin_unlock(&osb->osb_lock); 69819ece546SJan Kara goto out; 69919ece546SJan Kara } 70019ece546SJan Kara } 701ccd979bdSMark Fasheh } 702ccd979bdSMark Fasheh 703ccd979bdSMark Fasheh if (!ret) { 704ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 705ccd979bdSMark Fasheh * remount. */ 706c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 707c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 708c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 709d147b3d6SMark Fasheh if (parsed_options.commit_interval) 710d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 711e001e796SMark Fasheh 712e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 713e001e796SMark Fasheh ocfs2_set_journal_params(osb); 71457b09bb5SJan Kara 71557b09bb5SJan Kara sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 71657b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 71757b09bb5SJan Kara MS_POSIXACL : 0); 718ccd979bdSMark Fasheh } 719ccd979bdSMark Fasheh out: 720337eb00aSAlessio Igor Bogani unlock_kernel(); 721ccd979bdSMark Fasheh return ret; 722ccd979bdSMark Fasheh } 723ccd979bdSMark Fasheh 724ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 725ccd979bdSMark Fasheh struct buffer_head **bh, 72673be192bSJoel Becker int *sector_size, 72773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 728ccd979bdSMark Fasheh { 729bddb8eb3SDenis Cheng int status, tmpstat; 730ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 731ccd979bdSMark Fasheh struct ocfs2_dinode *di; 732ccd979bdSMark Fasheh int blksize; 733ccd979bdSMark Fasheh 734ccd979bdSMark Fasheh *bh = NULL; 735ccd979bdSMark Fasheh 736ccd979bdSMark Fasheh /* may be > 512 */ 737e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 738ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 739ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 740ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 741ccd979bdSMark Fasheh status = -EINVAL; 742ccd979bdSMark Fasheh goto bail; 743ccd979bdSMark Fasheh } 744ccd979bdSMark Fasheh 745ccd979bdSMark Fasheh /* Can this really happen? */ 746ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 747ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 748ccd979bdSMark Fasheh 749ccd979bdSMark Fasheh /* check block zero for old format */ 750ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 751ccd979bdSMark Fasheh if (status < 0) { 752ccd979bdSMark Fasheh mlog_errno(status); 753ccd979bdSMark Fasheh goto bail; 754ccd979bdSMark Fasheh } 755ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 756ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 757ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 758ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 759ccd979bdSMark Fasheh status = -EINVAL; 760ccd979bdSMark Fasheh } 761ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 762ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 763ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 764ccd979bdSMark Fasheh hdr->signature); 765ccd979bdSMark Fasheh status = -EINVAL; 766ccd979bdSMark Fasheh } 767ccd979bdSMark Fasheh brelse(*bh); 768ccd979bdSMark Fasheh *bh = NULL; 769ccd979bdSMark Fasheh if (status < 0) { 770ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 771ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 772ccd979bdSMark Fasheh goto bail; 773ccd979bdSMark Fasheh } 774ccd979bdSMark Fasheh 775ccd979bdSMark Fasheh /* 776ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 777ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 778ccd979bdSMark Fasheh * the minimum clustersize. 779ccd979bdSMark Fasheh */ 780ccd979bdSMark Fasheh status = -EINVAL; 781ccd979bdSMark Fasheh for (blksize = *sector_size; 782ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 783ccd979bdSMark Fasheh blksize <<= 1) { 784ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 785ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 786ccd979bdSMark Fasheh blksize); 787ccd979bdSMark Fasheh if (tmpstat < 0) { 788ccd979bdSMark Fasheh status = tmpstat; 789ccd979bdSMark Fasheh mlog_errno(status); 790fb5cbe9eSJoel Becker break; 791ccd979bdSMark Fasheh } 792ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 79373be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 7941c1d9793SJan Kara spin_lock_init(&stats->b_lock); 795fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 796fb5cbe9eSJoel Becker if (tmpstat < 0) { 797ccd979bdSMark Fasheh brelse(*bh); 798ccd979bdSMark Fasheh *bh = NULL; 799fb5cbe9eSJoel Becker } 800fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 801fb5cbe9eSJoel Becker status = tmpstat; 802ccd979bdSMark Fasheh break; 803ccd979bdSMark Fasheh } 804fb5cbe9eSJoel Becker } 805ccd979bdSMark Fasheh 806ccd979bdSMark Fasheh bail: 807ccd979bdSMark Fasheh return status; 808ccd979bdSMark Fasheh } 809ccd979bdSMark Fasheh 810c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 811c271c5c2SSunil Mushran { 812c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 813c271c5c2SSunil Mushran if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 814c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 815c271c5c2SSunil Mushran "mounted device.\n"); 816c271c5c2SSunil Mushran return -EINVAL; 817c271c5c2SSunil Mushran } 818c271c5c2SSunil Mushran } 819c271c5c2SSunil Mushran 820b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 821b61817e1SJoel Becker if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 822b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 823b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 824b61817e1SJoel Becker return -EINVAL; 825b61817e1SJoel Becker } 826b61817e1SJoel Becker } 827b61817e1SJoel Becker 828c271c5c2SSunil Mushran if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 829b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 830b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 831c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 832c271c5c2SSunil Mushran "a read-write clustered device.\n"); 833c271c5c2SSunil Mushran return -EINVAL; 834c271c5c2SSunil Mushran } 835c271c5c2SSunil Mushran } 836c271c5c2SSunil Mushran 837c271c5c2SSunil Mushran return 0; 838c271c5c2SSunil Mushran } 839c271c5c2SSunil Mushran 840b61817e1SJoel Becker /* 841b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 842b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 843b61817e1SJoel Becker * have passed a stack. 844b61817e1SJoel Becker */ 845b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 846b61817e1SJoel Becker struct mount_options *mopt) 847b61817e1SJoel Becker { 848b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 849b61817e1SJoel Becker mlog(ML_ERROR, 850b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 851b61817e1SJoel Becker "does not support it\n"); 852b61817e1SJoel Becker return -EINVAL; 853b61817e1SJoel Becker } 854b61817e1SJoel Becker 855b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 856b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 857b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 858b61817e1SJoel Becker mlog(ML_ERROR, 859b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 860b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 861b61817e1SJoel Becker mopt->cluster_stack, 862b61817e1SJoel Becker osb->osb_cluster_stack); 863b61817e1SJoel Becker return -EINVAL; 864b61817e1SJoel Becker } 865b61817e1SJoel Becker 866b61817e1SJoel Becker return 0; 867b61817e1SJoel Becker } 868b61817e1SJoel Becker 86919ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 87019ece546SJan Kara { 87119ece546SJan Kara int type; 87219ece546SJan Kara struct super_block *sb = osb->sb; 87319ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 87419ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 87519ece546SJan Kara int status = 0; 87619ece546SJan Kara 87719ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 87819ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 87919ece546SJan Kara continue; 88019ece546SJan Kara if (unsuspend) 8810f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 882eea7feb0SJan Kara else { 883eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 884eea7feb0SJan Kara 885eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 886eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 887eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 8880f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 889eea7feb0SJan Kara } 89019ece546SJan Kara if (status < 0) 89119ece546SJan Kara break; 89219ece546SJan Kara } 89319ece546SJan Kara if (status < 0) 89419ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 89519ece546SJan Kara "remount (error = %d).\n", status); 89619ece546SJan Kara return status; 89719ece546SJan Kara } 89819ece546SJan Kara 89919ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 90019ece546SJan Kara { 90119ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 90219ece546SJan Kara struct super_block *sb = osb->sb; 90319ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 90419ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 90519ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 90619ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 90719ece546SJan Kara int status; 90819ece546SJan Kara int type; 90919ece546SJan Kara 91019ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 91119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 91219ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 91319ece546SJan Kara continue; 91419ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 91519ece546SJan Kara osb->slot_num); 91619ece546SJan Kara if (!inode[type]) { 91719ece546SJan Kara status = -ENOENT; 91819ece546SJan Kara goto out_quota_off; 91919ece546SJan Kara } 920287a8095SChristoph Hellwig status = dquot_enable(inode[type], type, QFMT_OCFS2, 92119ece546SJan Kara DQUOT_USAGE_ENABLED); 92219ece546SJan Kara if (status < 0) 92319ece546SJan Kara goto out_quota_off; 92419ece546SJan Kara } 92519ece546SJan Kara 92619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 92719ece546SJan Kara iput(inode[type]); 92819ece546SJan Kara return 0; 92919ece546SJan Kara out_quota_off: 93019ece546SJan Kara ocfs2_disable_quotas(osb); 93119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 93219ece546SJan Kara iput(inode[type]); 93319ece546SJan Kara mlog_errno(status); 93419ece546SJan Kara return status; 93519ece546SJan Kara } 93619ece546SJan Kara 93719ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 93819ece546SJan Kara { 93919ece546SJan Kara int type; 94019ece546SJan Kara struct inode *inode; 94119ece546SJan Kara struct super_block *sb = osb->sb; 942c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 94319ece546SJan Kara 94419ece546SJan Kara /* We mostly ignore errors in this function because there's not much 94519ece546SJan Kara * we can do when we see them */ 94619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 94719ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 94819ece546SJan Kara continue; 949c06bcbfaSJan Kara /* Cancel periodic syncing before we grab dqonoff_mutex */ 950c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 951c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 95219ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 95319ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 95419ece546SJan Kara * memory and so they will be automatically synced to global 95519ece546SJan Kara * quota files */ 9560f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 95719ece546SJan Kara DQUOT_LIMITS_ENABLED); 95819ece546SJan Kara if (!inode) 95919ece546SJan Kara continue; 96019ece546SJan Kara iput(inode); 96119ece546SJan Kara } 96219ece546SJan Kara } 96319ece546SJan Kara 96419ece546SJan Kara /* Handle quota on quotactl */ 96519ece546SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id, 966307ae18aSChristoph Hellwig char *path) 96719ece546SJan Kara { 96819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 96919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 97019ece546SJan Kara 97119ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 97219ece546SJan Kara return -EINVAL; 97319ece546SJan Kara 974287a8095SChristoph Hellwig return dquot_enable(sb_dqopt(sb)->files[type], type, 97519ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 97619ece546SJan Kara } 97719ece546SJan Kara 97819ece546SJan Kara /* Handle quota off quotactl */ 979307ae18aSChristoph Hellwig static int ocfs2_quota_off(struct super_block *sb, int type) 98019ece546SJan Kara { 9810f0dd62fSChristoph Hellwig return dquot_disable(sb, type, DQUOT_LIMITS_ENABLED); 98219ece546SJan Kara } 98319ece546SJan Kara 9840d54b217SAlexey Dobriyan static const struct quotactl_ops ocfs2_quotactl_ops = { 98519ece546SJan Kara .quota_on = ocfs2_quota_on, 98619ece546SJan Kara .quota_off = ocfs2_quota_off, 987287a8095SChristoph Hellwig .quota_sync = dquot_quota_sync, 988287a8095SChristoph Hellwig .get_info = dquot_get_dqinfo, 989287a8095SChristoph Hellwig .set_info = dquot_set_dqinfo, 990287a8095SChristoph Hellwig .get_dqblk = dquot_get_dqblk, 991287a8095SChristoph Hellwig .set_dqblk = dquot_set_dqblk, 99219ece546SJan Kara }; 99319ece546SJan Kara 994ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 995ccd979bdSMark Fasheh { 996ccd979bdSMark Fasheh struct dentry *root; 997ccd979bdSMark Fasheh int status, sector_size; 998c0123adeSTiger Yang struct mount_options parsed_options; 999ccd979bdSMark Fasheh struct inode *inode = NULL; 1000ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1001ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1002c271c5c2SSunil Mushran char nodestr[8]; 100373be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 1004ccd979bdSMark Fasheh 1005ccd979bdSMark Fasheh mlog_entry("%p, %p, %i", sb, data, silent); 1006ccd979bdSMark Fasheh 1007c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 1008c271c5c2SSunil Mushran status = -EINVAL; 1009c271c5c2SSunil Mushran goto read_super_error; 1010c271c5c2SSunil Mushran } 1011c271c5c2SSunil Mushran 1012ccd979bdSMark Fasheh /* probe for superblock */ 101373be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1014ccd979bdSMark Fasheh if (status < 0) { 1015ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1016ccd979bdSMark Fasheh goto read_super_error; 1017ccd979bdSMark Fasheh } 1018ccd979bdSMark Fasheh 101973be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1020ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1021ccd979bdSMark Fasheh if (status < 0) { 1022ccd979bdSMark Fasheh mlog_errno(status); 1023ccd979bdSMark Fasheh goto read_super_error; 1024ccd979bdSMark Fasheh } 1025ccd979bdSMark Fasheh brelse(bh); 1026ccd979bdSMark Fasheh bh = NULL; 1027a68979b8STiger Yang 10285297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10295297aad8SJan Kara status = -EINVAL; 10305297aad8SJan Kara goto read_super_error; 10315297aad8SJan Kara } 1032c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1033c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1034c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1035d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 103673c8a800SMark Fasheh 103773c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1038d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 103983f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 104083f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 104183f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 104283f92318SMark Fasheh else 104383f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1044ccd979bdSMark Fasheh 1045b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1046b61817e1SJoel Becker if (status) 1047b61817e1SJoel Becker goto read_super_error; 1048b61817e1SJoel Becker 1049ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1050ccd979bdSMark Fasheh 1051a68979b8STiger Yang sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 1052a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1053a68979b8STiger Yang 1054ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1055ccd979bdSMark Fasheh * heartbeat=none */ 1056ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1057ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1058ccd979bdSMark Fasheh status = -EACCES; 1059ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1060ccd979bdSMark Fasheh "mount was not specified.\n"); 1061ccd979bdSMark Fasheh goto read_super_error; 1062ccd979bdSMark Fasheh } 1063ccd979bdSMark Fasheh 1064ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1065ccd979bdSMark Fasheh * on a readonly device. */ 1066ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1067ccd979bdSMark Fasheh status = -EROFS; 1068ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1069ccd979bdSMark Fasheh "device.\n"); 1070ccd979bdSMark Fasheh goto read_super_error; 1071ccd979bdSMark Fasheh } 1072ccd979bdSMark Fasheh 1073ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1074ccd979bdSMark Fasheh if (status < 0) { 1075ccd979bdSMark Fasheh if (status == -EROFS) 1076ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1077ccd979bdSMark Fasheh "file system, but write access is " 1078ccd979bdSMark Fasheh "unavailable.\n"); 1079ccd979bdSMark Fasheh else 1080ccd979bdSMark Fasheh mlog_errno(status); 1081ccd979bdSMark Fasheh goto read_super_error; 1082ccd979bdSMark Fasheh } 1083ccd979bdSMark Fasheh 1084ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1085ccd979bdSMark Fasheh 1086ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 1087ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 1088ccd979bdSMark Fasheh "will be skipped.\n"); 1089ccd979bdSMark Fasheh } 1090ccd979bdSMark Fasheh 1091ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1092ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1093ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1094ccd979bdSMark Fasheh } 1095ccd979bdSMark Fasheh 1096c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1097c271c5c2SSunil Mushran if (status < 0) { 1098c271c5c2SSunil Mushran mlog_errno(status); 1099c271c5c2SSunil Mushran goto read_super_error; 1100c271c5c2SSunil Mushran } 1101c271c5c2SSunil Mushran 1102ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1103ccd979bdSMark Fasheh ocfs2_debugfs_root); 1104ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1105ccd979bdSMark Fasheh status = -EINVAL; 1106ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1107ccd979bdSMark Fasheh goto read_super_error; 1108ccd979bdSMark Fasheh } 1109ccd979bdSMark Fasheh 111050397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 111150397507SSunil Mushran osb->osb_debug_root, 111250397507SSunil Mushran osb, 111350397507SSunil Mushran &ocfs2_osb_debug_fops); 111450397507SSunil Mushran if (!osb->osb_ctxt) { 111550397507SSunil Mushran status = -EINVAL; 111650397507SSunil Mushran mlog_errno(status); 111750397507SSunil Mushran goto read_super_error; 111850397507SSunil Mushran } 111950397507SSunil Mushran 112073be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 112173be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 112273be192bSJoel Becker &osb->osb_ecc_stats, 112373be192bSJoel Becker osb->osb_debug_root); 112473be192bSJoel Becker if (status) { 112573be192bSJoel Becker mlog(ML_ERROR, 112673be192bSJoel Becker "Unable to create blockcheck statistics " 112773be192bSJoel Becker "files\n"); 112873be192bSJoel Becker goto read_super_error; 112973be192bSJoel Becker } 113073be192bSJoel Becker } 113173be192bSJoel Becker 1132ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1133ccd979bdSMark Fasheh if (osb->root_inode) 1134ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 1135ccd979bdSMark Fasheh 1136ccd979bdSMark Fasheh if (status < 0) 1137ccd979bdSMark Fasheh goto read_super_error; 1138ccd979bdSMark Fasheh 1139ccd979bdSMark Fasheh if (!inode) { 1140ccd979bdSMark Fasheh status = -EIO; 1141ccd979bdSMark Fasheh mlog_errno(status); 1142ccd979bdSMark Fasheh goto read_super_error; 1143ccd979bdSMark Fasheh } 1144ccd979bdSMark Fasheh 1145ccd979bdSMark Fasheh root = d_alloc_root(inode); 1146ccd979bdSMark Fasheh if (!root) { 1147ccd979bdSMark Fasheh status = -ENOMEM; 1148ccd979bdSMark Fasheh mlog_errno(status); 1149ccd979bdSMark Fasheh goto read_super_error; 1150ccd979bdSMark Fasheh } 1151ccd979bdSMark Fasheh 1152ccd979bdSMark Fasheh sb->s_root = root; 1153ccd979bdSMark Fasheh 1154ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1155ccd979bdSMark Fasheh 1156c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1157c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1158c271c5c2SSunil Mushran else 115919fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1160c271c5c2SSunil Mushran 1161c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1162781ee3e2SSunil Mushran "with %s data mode.\n", 1163c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1164ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1165ccd979bdSMark Fasheh "ordered"); 1166ccd979bdSMark Fasheh 1167ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1168ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1169ccd979bdSMark Fasheh 117019ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 117119ece546SJan Kara * for cluster locks recovery now. That also means that truncation 117219ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 117319ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 117419ece546SJan Kara status = ocfs2_enable_quotas(osb); 117519ece546SJan Kara if (status < 0) { 117619ece546SJan Kara /* We have to err-out specially here because 117719ece546SJan Kara * s_root is already set */ 117819ece546SJan Kara mlog_errno(status); 117919ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 118019ece546SJan Kara wake_up(&osb->osb_mount_event); 118119ece546SJan Kara mlog_exit(status); 118219ece546SJan Kara return status; 118319ece546SJan Kara } 118419ece546SJan Kara } 118519ece546SJan Kara 118619ece546SJan Kara ocfs2_complete_quota_recovery(osb); 118719ece546SJan Kara 118819ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 118919ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 119019ece546SJan Kara wake_up(&osb->osb_mount_event); 119119ece546SJan Kara 1192df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 11938b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1194df152c24SSunil Mushran 1195ccd979bdSMark Fasheh mlog_exit(status); 1196ccd979bdSMark Fasheh return status; 1197ccd979bdSMark Fasheh 1198ccd979bdSMark Fasheh read_super_error: 1199ccd979bdSMark Fasheh brelse(bh); 1200ccd979bdSMark Fasheh 1201ccd979bdSMark Fasheh if (inode) 1202ccd979bdSMark Fasheh iput(inode); 1203ccd979bdSMark Fasheh 1204ccd979bdSMark Fasheh if (osb) { 1205ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1206ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1207ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1208ccd979bdSMark Fasheh } 1209ccd979bdSMark Fasheh 1210ccd979bdSMark Fasheh mlog_exit(status); 1211ccd979bdSMark Fasheh return status; 1212ccd979bdSMark Fasheh } 1213ccd979bdSMark Fasheh 1214454e2398SDavid Howells static int ocfs2_get_sb(struct file_system_type *fs_type, 1215ccd979bdSMark Fasheh int flags, 1216ccd979bdSMark Fasheh const char *dev_name, 1217454e2398SDavid Howells void *data, 1218454e2398SDavid Howells struct vfsmount *mnt) 1219ccd979bdSMark Fasheh { 1220454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, 1221454e2398SDavid Howells mnt); 1222ccd979bdSMark Fasheh } 1223ccd979bdSMark Fasheh 1224f7b1aa69SJan Kara static void ocfs2_kill_sb(struct super_block *sb) 1225f7b1aa69SJan Kara { 1226f7b1aa69SJan Kara struct ocfs2_super *osb = OCFS2_SB(sb); 1227f7b1aa69SJan Kara 12285fd13189SJan Kara /* Failed mount? */ 12295fd13189SJan Kara if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) 12305fd13189SJan Kara goto out; 12315fd13189SJan Kara 1232f7b1aa69SJan Kara /* Prevent further queueing of inode drop events */ 1233f7b1aa69SJan Kara spin_lock(&dentry_list_lock); 1234f7b1aa69SJan Kara ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); 1235f7b1aa69SJan Kara spin_unlock(&dentry_list_lock); 1236f7b1aa69SJan Kara /* Wait for work to finish and/or remove it */ 1237f7b1aa69SJan Kara cancel_work_sync(&osb->dentry_lock_work); 12385fd13189SJan Kara out: 1239f7b1aa69SJan Kara kill_block_super(sb); 1240f7b1aa69SJan Kara } 1241f7b1aa69SJan Kara 1242ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1243ccd979bdSMark Fasheh .owner = THIS_MODULE, 1244ccd979bdSMark Fasheh .name = "ocfs2", 1245ccd979bdSMark Fasheh .get_sb = ocfs2_get_sb, /* is this called when we mount 1246ccd979bdSMark Fasheh * the fs? */ 1247f7b1aa69SJan Kara .kill_sb = ocfs2_kill_sb, 1248f7b1aa69SJan Kara 12491ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1250ccd979bdSMark Fasheh .next = NULL 1251ccd979bdSMark Fasheh }; 1252ccd979bdSMark Fasheh 12535297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12545297aad8SJan Kara struct mount_options *options) 12555297aad8SJan Kara { 12565297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12575297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12585297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12595297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12605297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12615297aad8SJan Kara return 0; 12625297aad8SJan Kara } 12635297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12645297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12655297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12665297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12675297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12685297aad8SJan Kara return 0; 12695297aad8SJan Kara } 12705297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12715297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12725297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12735297aad8SJan Kara "feature is not enabled\n"); 12745297aad8SJan Kara return 0; 12755297aad8SJan Kara } 12765297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12775297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12785297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12795297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12805297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 12815297aad8SJan Kara else 12825297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 12835297aad8SJan Kara } 12845297aad8SJan Kara return 1; 12855297aad8SJan Kara } 12865297aad8SJan Kara 1287ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1288ccd979bdSMark Fasheh char *options, 1289c0123adeSTiger Yang struct mount_options *mopt, 1290ccd979bdSMark Fasheh int is_remount) 1291ccd979bdSMark Fasheh { 1292ccd979bdSMark Fasheh int status; 1293ccd979bdSMark Fasheh char *p; 1294ccd979bdSMark Fasheh 1295ccd979bdSMark Fasheh mlog_entry("remount: %d, options: \"%s\"\n", is_remount, 1296ccd979bdSMark Fasheh options ? options : "(none)"); 1297ccd979bdSMark Fasheh 1298d147b3d6SMark Fasheh mopt->commit_interval = 0; 12994b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1300c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1301c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 130273c8a800SMark Fasheh mopt->localalloc_opt = -1; 1303b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1304d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 130583f92318SMark Fasheh mopt->dir_resv_level = -1; 1306ccd979bdSMark Fasheh 1307ccd979bdSMark Fasheh if (!options) { 1308ccd979bdSMark Fasheh status = 1; 1309ccd979bdSMark Fasheh goto bail; 1310ccd979bdSMark Fasheh } 1311ccd979bdSMark Fasheh 1312ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1313ccd979bdSMark Fasheh int token, option; 1314ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1315ccd979bdSMark Fasheh 1316ccd979bdSMark Fasheh if (!*p) 1317ccd979bdSMark Fasheh continue; 1318ccd979bdSMark Fasheh 1319ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1320ccd979bdSMark Fasheh switch (token) { 1321ccd979bdSMark Fasheh case Opt_hb_local: 1322c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1323ccd979bdSMark Fasheh break; 1324ccd979bdSMark Fasheh case Opt_hb_none: 1325c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; 1326ccd979bdSMark Fasheh break; 1327ccd979bdSMark Fasheh case Opt_barrier: 1328ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1329ccd979bdSMark Fasheh status = 0; 1330ccd979bdSMark Fasheh goto bail; 1331ccd979bdSMark Fasheh } 1332ccd979bdSMark Fasheh if (option) 1333c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1334ccd979bdSMark Fasheh else 1335c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1336ccd979bdSMark Fasheh break; 1337ccd979bdSMark Fasheh case Opt_intr: 1338c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1339ccd979bdSMark Fasheh break; 1340ccd979bdSMark Fasheh case Opt_nointr: 1341c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1342ccd979bdSMark Fasheh break; 1343ccd979bdSMark Fasheh case Opt_err_panic: 1344c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1345ccd979bdSMark Fasheh break; 1346ccd979bdSMark Fasheh case Opt_err_ro: 1347c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1348ccd979bdSMark Fasheh break; 1349ccd979bdSMark Fasheh case Opt_data_ordered: 1350c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1351ccd979bdSMark Fasheh break; 1352ccd979bdSMark Fasheh case Opt_data_writeback: 1353c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1354ccd979bdSMark Fasheh break; 1355cf1d6c76STiger Yang case Opt_user_xattr: 1356cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1357cf1d6c76STiger Yang break; 1358cf1d6c76STiger Yang case Opt_nouser_xattr: 1359cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1360cf1d6c76STiger Yang break; 13617f1a37e3STiger Yang case Opt_atime_quantum: 13627f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13637f1a37e3STiger Yang status = 0; 13647f1a37e3STiger Yang goto bail; 13657f1a37e3STiger Yang } 13667f1a37e3STiger Yang if (option >= 0) 1367c0123adeSTiger Yang mopt->atime_quantum = option; 13687f1a37e3STiger Yang break; 1369baf4661aSSunil Mushran case Opt_slot: 1370baf4661aSSunil Mushran option = 0; 1371baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1372baf4661aSSunil Mushran status = 0; 1373baf4661aSSunil Mushran goto bail; 1374baf4661aSSunil Mushran } 1375baf4661aSSunil Mushran if (option) 1376c0123adeSTiger Yang mopt->slot = (s16)option; 1377baf4661aSSunil Mushran break; 1378d147b3d6SMark Fasheh case Opt_commit: 1379d147b3d6SMark Fasheh option = 0; 1380d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1381d147b3d6SMark Fasheh status = 0; 1382d147b3d6SMark Fasheh goto bail; 1383d147b3d6SMark Fasheh } 1384d147b3d6SMark Fasheh if (option < 0) 1385d147b3d6SMark Fasheh return 0; 1386d147b3d6SMark Fasheh if (option == 0) 13872b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1388d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1389d147b3d6SMark Fasheh break; 13902fbe8d1eSSunil Mushran case Opt_localalloc: 13912fbe8d1eSSunil Mushran option = 0; 13922fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 13932fbe8d1eSSunil Mushran status = 0; 13942fbe8d1eSSunil Mushran goto bail; 13952fbe8d1eSSunil Mushran } 139673c8a800SMark Fasheh if (option >= 0) 13972fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 13982fbe8d1eSSunil Mushran break; 139953fc622bSMark Fasheh case Opt_localflocks: 140053fc622bSMark Fasheh /* 140153fc622bSMark Fasheh * Changing this during remount could race 140253fc622bSMark Fasheh * flock() requests, or "unbalance" existing 140353fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 140453fc622bSMark Fasheh * dropped in the other). If users care enough 140553fc622bSMark Fasheh * to flip locking modes during remount, we 140653fc622bSMark Fasheh * could add a "local" flag to individual 140753fc622bSMark Fasheh * flock structures for proper tracking of 140853fc622bSMark Fasheh * state. 140953fc622bSMark Fasheh */ 141053fc622bSMark Fasheh if (!is_remount) 141153fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 141253fc622bSMark Fasheh break; 1413b61817e1SJoel Becker case Opt_stack: 1414b61817e1SJoel Becker /* Check both that the option we were passed 1415b61817e1SJoel Becker * is of the right length and that it is a proper 1416b61817e1SJoel Becker * string of the right length. 1417b61817e1SJoel Becker */ 1418b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1419b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1420b61817e1SJoel Becker (strnlen(args[0].from, 1421b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1422b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1423b61817e1SJoel Becker mlog(ML_ERROR, 1424b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1425b61817e1SJoel Becker status = 0; 1426b61817e1SJoel Becker goto bail; 1427b61817e1SJoel Becker } 1428b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1429b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1430b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 1431b61817e1SJoel Becker break; 143212462f1dSJoel Becker case Opt_inode64: 143312462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 143412462f1dSJoel Becker break; 143519ece546SJan Kara case Opt_usrquota: 143619ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 143719ece546SJan Kara break; 143819ece546SJan Kara case Opt_grpquota: 143919ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 144019ece546SJan Kara break; 1441a68979b8STiger Yang case Opt_acl: 1442a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14435297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1444a68979b8STiger Yang break; 1445a68979b8STiger Yang case Opt_noacl: 14465297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1447a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1448a68979b8STiger Yang break; 1449d02f00ccSMark Fasheh case Opt_resv_level: 1450d02f00ccSMark Fasheh if (is_remount) 1451d02f00ccSMark Fasheh break; 1452d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1453d02f00ccSMark Fasheh status = 0; 1454d02f00ccSMark Fasheh goto bail; 1455d02f00ccSMark Fasheh } 1456d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1457d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1458d02f00ccSMark Fasheh mopt->resv_level = option; 1459d02f00ccSMark Fasheh break; 146083f92318SMark Fasheh case Opt_dir_resv_level: 146183f92318SMark Fasheh if (is_remount) 146283f92318SMark Fasheh break; 146383f92318SMark Fasheh if (match_int(&args[0], &option)) { 146483f92318SMark Fasheh status = 0; 146583f92318SMark Fasheh goto bail; 146683f92318SMark Fasheh } 146783f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 146883f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 146983f92318SMark Fasheh mopt->dir_resv_level = option; 147083f92318SMark Fasheh break; 1471ccd979bdSMark Fasheh default: 1472ccd979bdSMark Fasheh mlog(ML_ERROR, 1473ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1474ccd979bdSMark Fasheh "or missing value\n", p); 1475ccd979bdSMark Fasheh status = 0; 1476ccd979bdSMark Fasheh goto bail; 1477ccd979bdSMark Fasheh } 1478ccd979bdSMark Fasheh } 1479ccd979bdSMark Fasheh 1480ccd979bdSMark Fasheh status = 1; 1481ccd979bdSMark Fasheh 1482ccd979bdSMark Fasheh bail: 1483ccd979bdSMark Fasheh mlog_exit(status); 1484ccd979bdSMark Fasheh return status; 1485ccd979bdSMark Fasheh } 1486ccd979bdSMark Fasheh 1487d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1488d550071cSSunil Mushran { 1489d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1490d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1491ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1492d550071cSSunil Mushran 1493d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 1494d550071cSSunil Mushran seq_printf(s, ",_netdev,heartbeat=local"); 1495d550071cSSunil Mushran else 1496d550071cSSunil Mushran seq_printf(s, ",heartbeat=none"); 1497d550071cSSunil Mushran 1498d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1499d550071cSSunil Mushran seq_printf(s, ",nointr"); 1500d550071cSSunil Mushran 1501d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1502d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1503d550071cSSunil Mushran else 1504d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1505d550071cSSunil Mushran 1506d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1507d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1508d550071cSSunil Mushran 1509d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1510d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1511d550071cSSunil Mushran else 1512d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1513d550071cSSunil Mushran 1514d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1515d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1516d550071cSSunil Mushran 1517d550071cSSunil Mushran if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) 1518d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1519d550071cSSunil Mushran 1520d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1521d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1522d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1523d147b3d6SMark Fasheh 1524ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15256b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1526ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15272fbe8d1eSSunil Mushran 152853fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 152953fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 153053fc622bSMark Fasheh 1531b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1532b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1533b61817e1SJoel Becker osb->osb_cluster_stack); 153419ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 153519ece546SJan Kara seq_printf(s, ",usrquota"); 153619ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 153719ece546SJan Kara seq_printf(s, ",grpquota"); 1538b61817e1SJoel Becker 1539b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1540b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1541b0f73cfcSSunil Mushran else 1542b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1543b0f73cfcSSunil Mushran 154412462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 154512462f1dSJoel Becker seq_printf(s, ",inode64"); 154612462f1dSJoel Becker 1547a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1548a68979b8STiger Yang seq_printf(s, ",acl"); 1549a68979b8STiger Yang else 1550a68979b8STiger Yang seq_printf(s, ",noacl"); 1551a68979b8STiger Yang 1552d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1553d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1554d02f00ccSMark Fasheh 155583f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 155683f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 155783f92318SMark Fasheh 1558d550071cSSunil Mushran return 0; 1559d550071cSSunil Mushran } 1560d550071cSSunil Mushran 1561ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1562ccd979bdSMark Fasheh { 1563ccd979bdSMark Fasheh int status; 1564ccd979bdSMark Fasheh 1565ccd979bdSMark Fasheh mlog_entry_void(); 1566ccd979bdSMark Fasheh 1567ccd979bdSMark Fasheh ocfs2_print_version(); 1568ccd979bdSMark Fasheh 1569ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1570ccd979bdSMark Fasheh if (status < 0) { 1571ccd979bdSMark Fasheh mlog_errno(status); 1572ccd979bdSMark Fasheh goto leave; 1573ccd979bdSMark Fasheh } 1574ccd979bdSMark Fasheh 1575ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1576ccd979bdSMark Fasheh if (status < 0) { 1577ccd979bdSMark Fasheh mlog_errno(status); 1578ccd979bdSMark Fasheh goto leave; 1579ccd979bdSMark Fasheh } 1580ccd979bdSMark Fasheh 1581ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1582ccd979bdSMark Fasheh if (!ocfs2_wq) { 1583ccd979bdSMark Fasheh status = -ENOMEM; 1584ccd979bdSMark Fasheh goto leave; 1585ccd979bdSMark Fasheh } 1586ccd979bdSMark Fasheh 1587ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1588ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1589ccd979bdSMark Fasheh status = -EFAULT; 1590ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1591ccd979bdSMark Fasheh } 1592ccd979bdSMark Fasheh 1593171bf93cSMark Fasheh status = ocfs2_quota_setup(); 1594171bf93cSMark Fasheh if (status) 1595171bf93cSMark Fasheh goto leave; 1596171bf93cSMark Fasheh 159763e0c48aSJoel Becker ocfs2_set_locking_protocol(); 159863e0c48aSJoel Becker 15999e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1600ccd979bdSMark Fasheh leave: 1601ccd979bdSMark Fasheh if (status < 0) { 1602171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1603ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1604ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1605ccd979bdSMark Fasheh } 1606ccd979bdSMark Fasheh 1607ccd979bdSMark Fasheh mlog_exit(status); 1608ccd979bdSMark Fasheh 1609ccd979bdSMark Fasheh if (status >= 0) { 1610ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1611ccd979bdSMark Fasheh } else 1612ccd979bdSMark Fasheh return -1; 1613ccd979bdSMark Fasheh } 1614ccd979bdSMark Fasheh 1615ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1616ccd979bdSMark Fasheh { 1617ccd979bdSMark Fasheh mlog_entry_void(); 1618ccd979bdSMark Fasheh 1619171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1620171bf93cSMark Fasheh 1621ccd979bdSMark Fasheh if (ocfs2_wq) { 1622ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1623ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1624ccd979bdSMark Fasheh } 1625ccd979bdSMark Fasheh 16269e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 16279e33d69fSJan Kara 1628ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1629ccd979bdSMark Fasheh 1630ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1631ccd979bdSMark Fasheh 1632ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1633ccd979bdSMark Fasheh 1634ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1635ccd979bdSMark Fasheh 1636ccd979bdSMark Fasheh mlog_exit_void(); 1637ccd979bdSMark Fasheh } 1638ccd979bdSMark Fasheh 1639ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1640ccd979bdSMark Fasheh { 1641ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1642ccd979bdSMark Fasheh 16436cfd0148SChristoph Hellwig lock_kernel(); 16446cfd0148SChristoph Hellwig 1645ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1646ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1647ccd979bdSMark Fasheh 16486cfd0148SChristoph Hellwig unlock_kernel(); 16496cfd0148SChristoph Hellwig 1650ccd979bdSMark Fasheh mlog_exit_void(); 1651ccd979bdSMark Fasheh } 1652ccd979bdSMark Fasheh 1653726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1654ccd979bdSMark Fasheh { 1655ccd979bdSMark Fasheh struct ocfs2_super *osb; 1656ccd979bdSMark Fasheh u32 numbits, freebits; 1657ccd979bdSMark Fasheh int status; 1658ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1659ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1660ccd979bdSMark Fasheh struct inode *inode = NULL; 1661ccd979bdSMark Fasheh 1662726c3342SDavid Howells mlog_entry("(%p, %p)\n", dentry->d_sb, buf); 1663ccd979bdSMark Fasheh 1664726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1665ccd979bdSMark Fasheh 1666ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1667ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1668ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1669ccd979bdSMark Fasheh if (!inode) { 1670ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1671ccd979bdSMark Fasheh status = -EIO; 1672ccd979bdSMark Fasheh goto bail; 1673ccd979bdSMark Fasheh } 1674ccd979bdSMark Fasheh 1675e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1676ccd979bdSMark Fasheh if (status < 0) { 1677ccd979bdSMark Fasheh mlog_errno(status); 1678ccd979bdSMark Fasheh goto bail; 1679ccd979bdSMark Fasheh } 1680ccd979bdSMark Fasheh 1681ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1682ccd979bdSMark Fasheh 1683ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1684ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1685ccd979bdSMark Fasheh 1686ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1687726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1688ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1689ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1690ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1691ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1692ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1693ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1694ccd979bdSMark Fasheh buf->f_files = numbits; 1695ccd979bdSMark Fasheh buf->f_ffree = freebits; 1696837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1697837711f8SColy Li & 0xFFFFFFFFUL; 1698837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1699837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1700ccd979bdSMark Fasheh 1701ccd979bdSMark Fasheh brelse(bh); 1702ccd979bdSMark Fasheh 1703e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1704ccd979bdSMark Fasheh status = 0; 1705ccd979bdSMark Fasheh bail: 1706ccd979bdSMark Fasheh if (inode) 1707ccd979bdSMark Fasheh iput(inode); 1708ccd979bdSMark Fasheh 1709ccd979bdSMark Fasheh mlog_exit(status); 1710ccd979bdSMark Fasheh 1711ccd979bdSMark Fasheh return status; 1712ccd979bdSMark Fasheh } 1713ccd979bdSMark Fasheh 171451cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1715ccd979bdSMark Fasheh { 1716ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1717ccd979bdSMark Fasheh 1718ccd979bdSMark Fasheh oi->ip_flags = 0; 1719ccd979bdSMark Fasheh oi->ip_open_count = 0; 1720ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 172183418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1722ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1723ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1724ccd979bdSMark Fasheh 1725ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1726cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1727251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1728ccd979bdSMark Fasheh 1729ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1730ccd979bdSMark Fasheh oi->ip_clusters = 0; 1731ccd979bdSMark Fasheh 17324fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 17334fe370afSMark Fasheh 1734ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1735e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 173650008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1737ccd979bdSMark Fasheh 17388cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 17396e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1740ccd979bdSMark Fasheh 1741ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1742ccd979bdSMark Fasheh } 1743ccd979bdSMark Fasheh 1744ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1745ccd979bdSMark Fasheh { 1746ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1747ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1748fffb60f9SPaul Jackson 0, 1749fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1750fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 175120c2df83SPaul Mundt ocfs2_inode_init_once); 17529e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17539e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17549e33d69fSJan Kara 0, 17559e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17569e33d69fSJan Kara SLAB_MEM_SPREAD), 17579e33d69fSJan Kara NULL); 17589e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17599e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17609e33d69fSJan Kara 0, 17619e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 17629e33d69fSJan Kara NULL); 17639e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 17649e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 17659e33d69fSJan Kara if (ocfs2_inode_cachep) 17669e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 17679e33d69fSJan Kara if (ocfs2_dquot_cachep) 17689e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17699e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 17709e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1771ccd979bdSMark Fasheh return -ENOMEM; 17729e33d69fSJan Kara } 1773ccd979bdSMark Fasheh 1774ccd979bdSMark Fasheh return 0; 1775ccd979bdSMark Fasheh } 1776ccd979bdSMark Fasheh 1777ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1778ccd979bdSMark Fasheh { 1779ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1780ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1781ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 17829e33d69fSJan Kara 17839e33d69fSJan Kara if (ocfs2_dquot_cachep) 17849e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17859e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 17869e33d69fSJan Kara 17879e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 17889e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 17899e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1790ccd979bdSMark Fasheh } 1791ccd979bdSMark Fasheh 1792ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1793ccd979bdSMark Fasheh struct buffer_head **bh, 1794ccd979bdSMark Fasheh int block, 1795ccd979bdSMark Fasheh int sect_size) 1796ccd979bdSMark Fasheh { 1797ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1798ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1799ccd979bdSMark Fasheh return -EIO; 1800ccd979bdSMark Fasheh } 1801ccd979bdSMark Fasheh 1802ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1803ccd979bdSMark Fasheh if (!*bh) { 1804ccd979bdSMark Fasheh mlog_errno(-EIO); 1805ccd979bdSMark Fasheh return -EIO; 1806ccd979bdSMark Fasheh } 1807ccd979bdSMark Fasheh lock_buffer(*bh); 1808ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1809ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1810ccd979bdSMark Fasheh unlock_buffer(*bh); 1811ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1812ccd979bdSMark Fasheh wait_on_buffer(*bh); 181328d57d43Swengang wang if (!buffer_uptodate(*bh)) { 181428d57d43Swengang wang mlog_errno(-EIO); 181528d57d43Swengang wang brelse(*bh); 181628d57d43Swengang wang *bh = NULL; 181728d57d43Swengang wang return -EIO; 181828d57d43Swengang wang } 181928d57d43Swengang wang 1820ccd979bdSMark Fasheh return 0; 1821ccd979bdSMark Fasheh } 1822ccd979bdSMark Fasheh 1823ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1824ccd979bdSMark Fasheh { 1825ccd979bdSMark Fasheh int status = 0; 1826ccd979bdSMark Fasheh int unlock_super = 0; 1827ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1828ccd979bdSMark Fasheh 1829ccd979bdSMark Fasheh mlog_entry_void(); 1830ccd979bdSMark Fasheh 1831ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1832ccd979bdSMark Fasheh goto leave; 1833ccd979bdSMark Fasheh 1834ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1835ccd979bdSMark Fasheh if (status < 0) { 1836ccd979bdSMark Fasheh mlog_errno(status); 1837ccd979bdSMark Fasheh goto leave; 1838ccd979bdSMark Fasheh } 1839ccd979bdSMark Fasheh 1840ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1841ccd979bdSMark Fasheh if (status < 0) { 1842ccd979bdSMark Fasheh mlog_errno(status); 1843ccd979bdSMark Fasheh goto leave; 1844ccd979bdSMark Fasheh } 1845ccd979bdSMark Fasheh unlock_super = 1; 1846ccd979bdSMark Fasheh 1847ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1848ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1849ccd979bdSMark Fasheh if (status < 0) { 1850ccd979bdSMark Fasheh mlog_errno(status); 1851ccd979bdSMark Fasheh goto leave; 1852ccd979bdSMark Fasheh } 1853ccd979bdSMark Fasheh 1854ccd979bdSMark Fasheh /* load all node-local system inodes */ 1855ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1856ccd979bdSMark Fasheh if (status < 0) { 1857ccd979bdSMark Fasheh mlog_errno(status); 1858ccd979bdSMark Fasheh goto leave; 1859ccd979bdSMark Fasheh } 1860ccd979bdSMark Fasheh 1861ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1862ccd979bdSMark Fasheh if (status < 0) { 1863ccd979bdSMark Fasheh mlog_errno(status); 1864ccd979bdSMark Fasheh goto leave; 1865ccd979bdSMark Fasheh } 1866ccd979bdSMark Fasheh 1867ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 186806c59bb8STao Ma if (status < 0) 1869ccd979bdSMark Fasheh mlog_errno(status); 1870c271c5c2SSunil Mushran 1871ccd979bdSMark Fasheh leave: 1872ccd979bdSMark Fasheh if (unlock_super) 1873ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1874ccd979bdSMark Fasheh 1875ccd979bdSMark Fasheh mlog_exit(status); 1876ccd979bdSMark Fasheh return status; 1877ccd979bdSMark Fasheh } 1878ccd979bdSMark Fasheh 1879ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1880ccd979bdSMark Fasheh { 1881286eaa95SJoel Becker int tmp, hangup_needed = 0; 1882ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1883c271c5c2SSunil Mushran char nodestr[8]; 1884ccd979bdSMark Fasheh 1885ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1886ccd979bdSMark Fasheh 1887ccd979bdSMark Fasheh BUG_ON(!sb); 1888ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1889ccd979bdSMark Fasheh BUG_ON(!osb); 1890ccd979bdSMark Fasheh 189150397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 189250397507SSunil Mushran 1893f7b1aa69SJan Kara /* 1894f7b1aa69SJan Kara * Flush inode dropping work queue so that deletes are 1895f7b1aa69SJan Kara * performed while the filesystem is still working 1896f7b1aa69SJan Kara */ 1897f7b1aa69SJan Kara ocfs2_drop_all_dl_inodes(osb); 1898f7b1aa69SJan Kara 1899692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1900692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1901692684e1SSunil Mushran 190219ece546SJan Kara ocfs2_disable_quotas(osb); 190319ece546SJan Kara 1904ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1905ccd979bdSMark Fasheh 1906ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1907ccd979bdSMark Fasheh 1908553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1909553abd04SJoel Becker ocfs2_recovery_exit(osb); 1910ccd979bdSMark Fasheh 1911ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1912ccd979bdSMark Fasheh 1913ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1914ccd979bdSMark Fasheh 1915374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1916374a263eSTao Ma 19174670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 19184670c46dSJoel Becker * all the steps which depended on that to complete. */ 19194670c46dSJoel Becker if (osb->cconn) { 1920ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1921ccd979bdSMark Fasheh if (tmp < 0) { 1922ccd979bdSMark Fasheh mlog_errno(tmp); 1923ccd979bdSMark Fasheh return; 1924ccd979bdSMark Fasheh } 192519b613d4SMark Fasheh } 1926ccd979bdSMark Fasheh 1927ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1928ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1929ccd979bdSMark Fasheh 19304670c46dSJoel Becker if (osb->cconn) 1931ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1932ccd979bdSMark Fasheh 1933ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1934ccd979bdSMark Fasheh 19356953b4c0SJoel Becker /* 19366953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19376953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19386953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19396953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19406953b4c0SJoel Becker */ 19416953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1942286eaa95SJoel Becker hangup_needed = 1; 1943286eaa95SJoel Becker 1944286eaa95SJoel Becker if (osb->cconn) 1945286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1946286eaa95SJoel Becker 194773be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1948286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1949286eaa95SJoel Becker 1950286eaa95SJoel Becker if (hangup_needed) 19516953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1952ccd979bdSMark Fasheh 1953ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1954ccd979bdSMark Fasheh 1955c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1956c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1957c271c5c2SSunil Mushran else 195819fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1959c271c5c2SSunil Mushran 1960c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1961c271c5c2SSunil Mushran osb->dev_str, nodestr); 1962ccd979bdSMark Fasheh 1963ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1964ccd979bdSMark Fasheh kfree(osb); 1965ccd979bdSMark Fasheh sb->s_dev = 0; 1966ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1967ccd979bdSMark Fasheh } 1968ccd979bdSMark Fasheh 1969ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1970ccd979bdSMark Fasheh unsigned uuid_bytes) 1971ccd979bdSMark Fasheh { 1972ccd979bdSMark Fasheh int i, ret; 1973ccd979bdSMark Fasheh char *ptr; 1974ccd979bdSMark Fasheh 1975ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1976ccd979bdSMark Fasheh 1977cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1978ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1979ccd979bdSMark Fasheh return -ENOMEM; 1980ccd979bdSMark Fasheh 1981ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1982ccd979bdSMark Fasheh /* print with null */ 1983ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1984ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1985ccd979bdSMark Fasheh return -EINVAL; 1986ccd979bdSMark Fasheh /* then only advance past the last char */ 1987ccd979bdSMark Fasheh ptr += 2; 1988ccd979bdSMark Fasheh } 1989ccd979bdSMark Fasheh 1990ccd979bdSMark Fasheh return 0; 1991ccd979bdSMark Fasheh } 1992ccd979bdSMark Fasheh 1993ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1994ccd979bdSMark Fasheh struct buffer_head *bh, 199573be192bSJoel Becker int sector_size, 199673be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 1997ccd979bdSMark Fasheh { 1998bddb8eb3SDenis Cheng int status; 19995a254031SMark Fasheh int i, cbits, bbits; 20005a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2001ccd979bdSMark Fasheh struct inode *inode = NULL; 2002ccd979bdSMark Fasheh struct ocfs2_journal *journal; 2003ccd979bdSMark Fasheh __le32 uuid_net_key; 2004ccd979bdSMark Fasheh struct ocfs2_super *osb; 2005ccd979bdSMark Fasheh 2006ccd979bdSMark Fasheh mlog_entry_void(); 2007ccd979bdSMark Fasheh 2008cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2009ccd979bdSMark Fasheh if (!osb) { 2010ccd979bdSMark Fasheh status = -ENOMEM; 2011ccd979bdSMark Fasheh mlog_errno(status); 2012ccd979bdSMark Fasheh goto bail; 2013ccd979bdSMark Fasheh } 2014ccd979bdSMark Fasheh 2015ccd979bdSMark Fasheh sb->s_fs_info = osb; 2016ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2017ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 201819ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 201919ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 2020cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2021e0dceaf0SMark Fasheh sb->s_time_gran = 1; 2022ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 2023ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20245a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20255a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20265a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 2027ccd979bdSMark Fasheh 20289b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20299b7895efSMark Fasheh 20309b7895efSMark Fasheh for (i = 0; i < 3; i++) 20319b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 20329b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 20339b7895efSMark Fasheh 2034ccd979bdSMark Fasheh osb->sb = sb; 2035ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 2036ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2037ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2038ccd979bdSMark Fasheh 203934d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 204034d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 204134d024f8SMark Fasheh osb->dc_work_sequence = 0; 204234d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2043ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2044ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2045ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2046c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2047b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2048ccd979bdSMark Fasheh 2049ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2050ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2051ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2052ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2053ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2054ccd979bdSMark Fasheh 205573be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 205673be192bSJoel Becker osb->osb_ecc_stats = *stats; 205773be192bSJoel Becker 2058ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2059ccd979bdSMark Fasheh 2060ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2061ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2062ccd979bdSMark Fasheh 20638b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 20648b712cd5SJeff Mahoney 2065553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2066553abd04SJoel Becker if (status) { 2067553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2068553abd04SJoel Becker mlog_errno(status); 2069553abd04SJoel Becker goto bail; 2070553abd04SJoel Becker } 2071ccd979bdSMark Fasheh 2072ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2073ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 2074ccd979bdSMark Fasheh 20757f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 20767f1a37e3STiger Yang 2077ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2078ccd979bdSMark Fasheh 20798154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 20808154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2081fdd77704STiger Yang 2082ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2083ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 20849c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2085ccd979bdSMark Fasheh 2086ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2087ccd979bdSMark Fasheh 2088d02f00ccSMark Fasheh status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2089d02f00ccSMark Fasheh if (status) { 2090d02f00ccSMark Fasheh mlog_errno(status); 2091d02f00ccSMark Fasheh goto bail; 2092d02f00ccSMark Fasheh } 2093d02f00ccSMark Fasheh 2094ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2095ccd979bdSMark Fasheh if (!osb->vol_label) { 2096ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2097ccd979bdSMark Fasheh status = -ENOMEM; 2098ccd979bdSMark Fasheh goto bail; 2099ccd979bdSMark Fasheh } 2100ccd979bdSMark Fasheh 2101ccd979bdSMark Fasheh osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 2102ccd979bdSMark Fasheh if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 2103ccd979bdSMark Fasheh mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 2104ccd979bdSMark Fasheh osb->max_slots); 2105ccd979bdSMark Fasheh status = -EINVAL; 2106ccd979bdSMark Fasheh goto bail; 2107ccd979bdSMark Fasheh } 2108781ee3e2SSunil Mushran mlog(0, "max_slots for this device: %u\n", osb->max_slots); 2109ccd979bdSMark Fasheh 2110539d8264SSunil Mushran osb->slot_recovery_generations = 2111539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2112539d8264SSunil Mushran GFP_KERNEL); 2113539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2114539d8264SSunil Mushran status = -ENOMEM; 2115539d8264SSunil Mushran mlog_errno(status); 2116539d8264SSunil Mushran goto bail; 2117539d8264SSunil Mushran } 2118539d8264SSunil Mushran 2119b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2120b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2121b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2122b4df6ed8SMark Fasheh GFP_KERNEL); 2123b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2124b4df6ed8SMark Fasheh status = -ENOMEM; 2125b4df6ed8SMark Fasheh mlog_errno(status); 2126b4df6ed8SMark Fasheh goto bail; 2127b4df6ed8SMark Fasheh } 2128b4df6ed8SMark Fasheh 2129374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2130374a263eSTao Ma 2131ccd979bdSMark Fasheh osb->s_feature_compat = 2132ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2133ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2134ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2135ccd979bdSMark Fasheh osb->s_feature_incompat = 2136ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2137ccd979bdSMark Fasheh 2138ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2139ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2140ccd979bdSMark Fasheh "optional features (%x).\n", i); 2141ccd979bdSMark Fasheh status = -EINVAL; 2142ccd979bdSMark Fasheh goto bail; 2143ccd979bdSMark Fasheh } 2144ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2145ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2146ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2147ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2148ccd979bdSMark Fasheh status = -EINVAL; 2149ccd979bdSMark Fasheh goto bail; 2150ccd979bdSMark Fasheh } 2151ccd979bdSMark Fasheh 215298f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 215398f486f2SSunil Mushran osb->osb_stackflags = 215498f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2155b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2156b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2157b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2158b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2159b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2160b61817e1SJoel Becker mlog(ML_ERROR, 2161b61817e1SJoel Becker "couldn't mount because of an invalid " 2162b61817e1SJoel Becker "cluster stack label (%s) \n", 2163b61817e1SJoel Becker osb->osb_cluster_stack); 2164b61817e1SJoel Becker status = -EINVAL; 2165b61817e1SJoel Becker goto bail; 2166b61817e1SJoel Becker } 2167b61817e1SJoel Becker } else { 2168b61817e1SJoel Becker /* The empty string is identical with classic tools that 2169b61817e1SJoel Becker * don't know about s_cluster_info. */ 2170b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2171b61817e1SJoel Becker } 2172b61817e1SJoel Becker 2173ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2174ccd979bdSMark Fasheh 2175ccd979bdSMark Fasheh /* FIXME 2176ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2177ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2178ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2179ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2180ccd979bdSMark Fasheh * be my guest. 2181ccd979bdSMark Fasheh */ 2182ccd979bdSMark Fasheh /* initialize our journal structure */ 2183ccd979bdSMark Fasheh 2184cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2185ccd979bdSMark Fasheh if (!journal) { 2186ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2187ccd979bdSMark Fasheh status = -ENOMEM; 2188ccd979bdSMark Fasheh goto bail; 2189ccd979bdSMark Fasheh } 2190ccd979bdSMark Fasheh osb->journal = journal; 2191ccd979bdSMark Fasheh journal->j_osb = osb; 2192ccd979bdSMark Fasheh 2193ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2194ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2195ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2196ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2197ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2198ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2199c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2200ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2201ccd979bdSMark Fasheh 2202ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2203ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2204ea455f8aSJan Kara 2205ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2206ccd979bdSMark Fasheh osb->s_clustersize_bits = 2207ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2208ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2209ccd979bdSMark Fasheh mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); 2210ccd979bdSMark Fasheh 2211ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2212ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2213ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2214ccd979bdSMark Fasheh osb->s_clustersize); 2215ccd979bdSMark Fasheh status = -EINVAL; 2216ccd979bdSMark Fasheh goto bail; 2217ccd979bdSMark Fasheh } 2218ccd979bdSMark Fasheh 2219ccd979bdSMark Fasheh if (ocfs2_clusters_to_blocks(osb->sb, le32_to_cpu(di->i_clusters) - 1) 2220ccd979bdSMark Fasheh > (u32)~0UL) { 2221ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume might try to write to blocks beyond " 2222ccd979bdSMark Fasheh "what jbd can address in 32 bits.\n"); 2223ccd979bdSMark Fasheh status = -EINVAL; 2224ccd979bdSMark Fasheh goto bail; 2225ccd979bdSMark Fasheh } 2226ccd979bdSMark Fasheh 2227ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2228ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2229ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2230ccd979bdSMark Fasheh status = -ENOMEM; 2231ccd979bdSMark Fasheh goto bail; 2232ccd979bdSMark Fasheh } 2233ccd979bdSMark Fasheh 223478427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2235ccd979bdSMark Fasheh 2236ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2237ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2238ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2239ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2240ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2241ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2242ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2243cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 2244ccd979bdSMark Fasheh mlog(0, "vol_label: %s\n", osb->vol_label); 2245ccd979bdSMark Fasheh mlog(0, "uuid: %s\n", osb->uuid_str); 2246b0697053SMark Fasheh mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", 2247b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 2248b0697053SMark Fasheh (unsigned long long)osb->system_dir_blkno); 2249ccd979bdSMark Fasheh 2250ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2251ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2252ccd979bdSMark Fasheh status = -ENOMEM; 2253ccd979bdSMark Fasheh mlog_errno(status); 2254ccd979bdSMark Fasheh goto bail; 2255ccd979bdSMark Fasheh } 2256ccd979bdSMark Fasheh 2257ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2258ccd979bdSMark Fasheh 2259ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2260ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2261ccd979bdSMark Fasheh if (status < 0) { 2262ccd979bdSMark Fasheh mlog_errno(status); 2263ccd979bdSMark Fasheh goto bail; 2264ccd979bdSMark Fasheh } 2265ccd979bdSMark Fasheh 2266ccd979bdSMark Fasheh /* 2267ccd979bdSMark Fasheh * global bitmap 2268ccd979bdSMark Fasheh */ 2269ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2270ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2271ccd979bdSMark Fasheh if (!inode) { 2272ccd979bdSMark Fasheh status = -EINVAL; 2273ccd979bdSMark Fasheh mlog_errno(status); 2274ccd979bdSMark Fasheh goto bail; 2275ccd979bdSMark Fasheh } 2276ccd979bdSMark Fasheh 2277ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 22786b82021bSMark Fasheh osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; 2279ccd979bdSMark Fasheh iput(inode); 2280ccd979bdSMark Fasheh 22818571882cSTao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, 22828571882cSTao Ma osb->s_feature_incompat) * 8; 2283ccd979bdSMark Fasheh 2284ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2285ccd979bdSMark Fasheh if (status < 0) { 2286ccd979bdSMark Fasheh mlog_errno(status); 2287ccd979bdSMark Fasheh goto bail; 2288ccd979bdSMark Fasheh } 2289ccd979bdSMark Fasheh 2290ccd979bdSMark Fasheh bail: 2291ccd979bdSMark Fasheh mlog_exit(status); 2292ccd979bdSMark Fasheh return status; 2293ccd979bdSMark Fasheh } 2294ccd979bdSMark Fasheh 2295ccd979bdSMark Fasheh /* 2296ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2297ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2298ccd979bdSMark Fasheh * 0 on success 2299ccd979bdSMark Fasheh */ 2300ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2301ccd979bdSMark Fasheh struct buffer_head *bh, 230273be192bSJoel Becker u32 blksz, 230373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2304ccd979bdSMark Fasheh { 2305ccd979bdSMark Fasheh int status = -EAGAIN; 2306ccd979bdSMark Fasheh 2307ccd979bdSMark Fasheh mlog_entry_void(); 2308ccd979bdSMark Fasheh 2309ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2310ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2311d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2312d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2313d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2314d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2315d030cc97SJoel Becker bh->b_size, 231673be192bSJoel Becker &di->i_check, 231773be192bSJoel Becker stats); 2318d030cc97SJoel Becker if (status) 2319d030cc97SJoel Becker goto out; 2320d030cc97SJoel Becker } 2321ccd979bdSMark Fasheh status = -EINVAL; 2322ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2323ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2324ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2325ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2326ccd979bdSMark Fasheh blksz); 2327ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2328ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2329ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2330ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2331ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2332ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2333ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2334ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2335ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2336ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2337ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2338ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2339b0697053SMark Fasheh "found %llu, should be %llu\n", 23401ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2341b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2342ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2343ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2344ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2345ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2346ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2347ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2348ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2349ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2350ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2351ccd979bdSMark Fasheh mlog(ML_ERROR, 2352ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2353ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2354ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2355ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2356ccd979bdSMark Fasheh } else { 2357ccd979bdSMark Fasheh /* found it! */ 2358ccd979bdSMark Fasheh status = 0; 2359ccd979bdSMark Fasheh } 2360ccd979bdSMark Fasheh } 2361ccd979bdSMark Fasheh 2362d030cc97SJoel Becker out: 2363ccd979bdSMark Fasheh mlog_exit(status); 2364ccd979bdSMark Fasheh return status; 2365ccd979bdSMark Fasheh } 2366ccd979bdSMark Fasheh 2367ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2368ccd979bdSMark Fasheh { 2369bddb8eb3SDenis Cheng int status; 2370ccd979bdSMark Fasheh int dirty; 2371c271c5c2SSunil Mushran int local; 2372ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2373ccd979bdSMark Fasheh * recover 2374ccd979bdSMark Fasheh * ourselves. */ 2375ccd979bdSMark Fasheh 2376ccd979bdSMark Fasheh mlog_entry_void(); 2377ccd979bdSMark Fasheh 2378ccd979bdSMark Fasheh /* Init our journal object. */ 2379ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2380ccd979bdSMark Fasheh if (status < 0) { 2381ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2382ccd979bdSMark Fasheh goto finally; 2383ccd979bdSMark Fasheh } 2384ccd979bdSMark Fasheh 2385ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2386ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2387ccd979bdSMark Fasheh * dirty work for us :) */ 2388ccd979bdSMark Fasheh if (!dirty) { 2389ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2390ccd979bdSMark Fasheh if (status < 0) { 2391ccd979bdSMark Fasheh mlog_errno(status); 2392ccd979bdSMark Fasheh goto finally; 2393ccd979bdSMark Fasheh } 2394ccd979bdSMark Fasheh } else { 2395ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2396ccd979bdSMark Fasheh "recovering volume.\n"); 2397ccd979bdSMark Fasheh } 2398ccd979bdSMark Fasheh 2399c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2400c271c5c2SSunil Mushran 2401ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2402539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 240301af4820SWengang Wang if (status < 0) { 240401af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 240501af4820SWengang Wang goto finally; 240601af4820SWengang Wang } 2407ccd979bdSMark Fasheh 2408ccd979bdSMark Fasheh if (dirty) { 2409ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2410ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2411ccd979bdSMark Fasheh osb->slot_num, 2412ccd979bdSMark Fasheh &local_alloc); 2413ccd979bdSMark Fasheh if (status < 0) { 2414ccd979bdSMark Fasheh mlog_errno(status); 2415ccd979bdSMark Fasheh goto finally; 2416ccd979bdSMark Fasheh } 2417ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2418ccd979bdSMark Fasheh * ourselves as mounted. */ 2419ccd979bdSMark Fasheh } 2420ccd979bdSMark Fasheh 2421ccd979bdSMark Fasheh mlog(0, "Journal loaded.\n"); 2422ccd979bdSMark Fasheh 2423ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2424ccd979bdSMark Fasheh if (status < 0) { 2425ccd979bdSMark Fasheh mlog_errno(status); 2426ccd979bdSMark Fasheh goto finally; 2427ccd979bdSMark Fasheh } 2428ccd979bdSMark Fasheh 2429ccd979bdSMark Fasheh if (dirty) { 2430ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2431ccd979bdSMark Fasheh * rest of the volume. */ 2432ccd979bdSMark Fasheh osb->dirty = 1; 2433ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2434ccd979bdSMark Fasheh local_alloc = NULL; 2435ccd979bdSMark Fasheh } 2436ccd979bdSMark Fasheh 2437ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2438ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2439ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2440ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 24419140db04SSrinivas Eeda if (status < 0) { 24429140db04SSrinivas Eeda mlog_errno(status); 24439140db04SSrinivas Eeda goto finally; 24449140db04SSrinivas Eeda } 24459140db04SSrinivas Eeda 24469140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2447ccd979bdSMark Fasheh if (status < 0) 2448ccd979bdSMark Fasheh mlog_errno(status); 2449ccd979bdSMark Fasheh 2450ccd979bdSMark Fasheh finally: 2451ccd979bdSMark Fasheh if (local_alloc) 2452ccd979bdSMark Fasheh kfree(local_alloc); 2453ccd979bdSMark Fasheh 2454ccd979bdSMark Fasheh mlog_exit(status); 2455ccd979bdSMark Fasheh return status; 2456ccd979bdSMark Fasheh } 2457ccd979bdSMark Fasheh 2458ccd979bdSMark Fasheh /* 2459ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2460ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2461ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2462ccd979bdSMark Fasheh * initialized resources and fileobject. 2463ccd979bdSMark Fasheh */ 2464ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2465ccd979bdSMark Fasheh { 2466ccd979bdSMark Fasheh mlog_entry_void(); 2467ccd979bdSMark Fasheh 2468ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2469ccd979bdSMark Fasheh 24708e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2471ccd979bdSMark Fasheh 2472b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2473539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2474ccd979bdSMark Fasheh /* FIXME 2475ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2476421f91d2SUwe Kleine-König * allocate osb->journal at the start of ocfs2_initialize_osb(), 2477ccd979bdSMark Fasheh * we free it here. 2478ccd979bdSMark Fasheh */ 2479ccd979bdSMark Fasheh kfree(osb->journal); 2480ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2481ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2482ccd979bdSMark Fasheh kfree(osb->uuid_str); 2483ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2484ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2485ccd979bdSMark Fasheh 2486ccd979bdSMark Fasheh mlog_exit_void(); 2487ccd979bdSMark Fasheh } 2488ccd979bdSMark Fasheh 2489ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2490ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2491ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2492ccd979bdSMark Fasheh { 2493ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2494ccd979bdSMark Fasheh 2495ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2496ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2497ccd979bdSMark Fasheh sb->s_id); 2498ccd979bdSMark Fasheh 2499ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2500ccd979bdSMark Fasheh 2501ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2502ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2503ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2504ccd979bdSMark Fasheh return; 2505ccd979bdSMark Fasheh 2506ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2507ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2508ccd979bdSMark Fasheh "system is unmounted.\n"); 2509ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2510ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2511ccd979bdSMark Fasheh } 2512ccd979bdSMark Fasheh 2513ccd979bdSMark Fasheh static char error_buf[1024]; 2514ccd979bdSMark Fasheh 2515ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2516ccd979bdSMark Fasheh const char *function, 2517ccd979bdSMark Fasheh const char *fmt, ...) 2518ccd979bdSMark Fasheh { 2519ccd979bdSMark Fasheh va_list args; 2520ccd979bdSMark Fasheh 2521ccd979bdSMark Fasheh va_start(args, fmt); 25224a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2523ccd979bdSMark Fasheh va_end(args); 2524ccd979bdSMark Fasheh 2525ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2526ccd979bdSMark Fasheh * function the error came from. */ 2527ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2528ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2529ccd979bdSMark Fasheh 2530ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2531ccd979bdSMark Fasheh } 2532ccd979bdSMark Fasheh 2533ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2534ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2535ccd979bdSMark Fasheh * etc. */ 2536ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2537ccd979bdSMark Fasheh const char *function, 2538ccd979bdSMark Fasheh const char *fmt, ...) 2539ccd979bdSMark Fasheh { 2540ccd979bdSMark Fasheh va_list args; 2541ccd979bdSMark Fasheh 2542ccd979bdSMark Fasheh va_start(args, fmt); 25434a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2544ccd979bdSMark Fasheh va_end(args); 2545ccd979bdSMark Fasheh 2546ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2547ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2548ccd979bdSMark Fasheh 2549ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2550ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2551ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2552ccd979bdSMark Fasheh * errors. 2553ccd979bdSMark Fasheh * 2554ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2555ccd979bdSMark Fasheh * that our slot needs recovery. */ 2556ccd979bdSMark Fasheh 2557ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2558ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2559ccd979bdSMark Fasheh * here. */ 2560a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2561ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2562ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2563ccd979bdSMark Fasheh } 2564ccd979bdSMark Fasheh 2565e4b963f1SJoel Becker /* 2566e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2567e4b963f1SJoel Becker * when SIG_* is wrong. 2568e4b963f1SJoel Becker */ 2569e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2570e4b963f1SJoel Becker { 2571e4b963f1SJoel Becker int rc; 2572e4b963f1SJoel Becker sigset_t blocked; 2573e4b963f1SJoel Becker 2574e4b963f1SJoel Becker sigfillset(&blocked); 2575e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2576e4b963f1SJoel Becker BUG_ON(rc); 2577e4b963f1SJoel Becker } 2578e4b963f1SJoel Becker 2579e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2580e4b963f1SJoel Becker { 2581e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2582e4b963f1SJoel Becker BUG_ON(rc); 2583e4b963f1SJoel Becker } 2584e4b963f1SJoel Becker 2585ccd979bdSMark Fasheh module_init(ocfs2_init); 2586ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2587