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> 441cfd8bd0SDan Magenheimer #include <linux/cleancache.h> 45ccd979bdSMark Fasheh 4680a9a84dSWengang Wang #define CREATE_TRACE_POINTS 4780a9a84dSWengang Wang #include "ocfs2_trace.h" 4880a9a84dSWengang Wang 49ccd979bdSMark Fasheh #include <cluster/masklog.h> 50ccd979bdSMark Fasheh 51ccd979bdSMark Fasheh #include "ocfs2.h" 52ccd979bdSMark Fasheh 53ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 54ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 55ccd979bdSMark Fasheh 56ccd979bdSMark Fasheh #include "alloc.h" 57a11f7e63SMark Fasheh #include "aops.h" 58d030cc97SJoel Becker #include "blockcheck.h" 59ccd979bdSMark Fasheh #include "dlmglue.h" 60ccd979bdSMark Fasheh #include "export.h" 61ccd979bdSMark Fasheh #include "extent_map.h" 62ccd979bdSMark Fasheh #include "heartbeat.h" 63ccd979bdSMark Fasheh #include "inode.h" 64ccd979bdSMark Fasheh #include "journal.h" 65ccd979bdSMark Fasheh #include "localalloc.h" 66ccd979bdSMark Fasheh #include "namei.h" 67ccd979bdSMark Fasheh #include "slot_map.h" 68ccd979bdSMark Fasheh #include "super.h" 69ccd979bdSMark Fasheh #include "sysfile.h" 70ccd979bdSMark Fasheh #include "uptodate.h" 71ccd979bdSMark Fasheh #include "ver.h" 72cf1d6c76STiger Yang #include "xattr.h" 739e33d69fSJan Kara #include "quota.h" 74374a263eSTao Ma #include "refcounttree.h" 75b89c5428STiger Yang #include "suballoc.h" 76ccd979bdSMark Fasheh 77ccd979bdSMark Fasheh #include "buffer_head_io.h" 78ccd979bdSMark Fasheh 79e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 809e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 819e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 82ccd979bdSMark Fasheh 8325985edcSLucas De Marchi /* OCFS2 needs to schedule several different types of work which 84ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 85ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 86ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 87ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 88ccd979bdSMark Fasheh 89ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 90ccd979bdSMark Fasheh 91ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 92ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 93ccd979bdSMark Fasheh 94c0123adeSTiger Yang struct mount_options 95c0123adeSTiger Yang { 96d147b3d6SMark Fasheh unsigned long commit_interval; 97c0123adeSTiger Yang unsigned long mount_opt; 98c0123adeSTiger Yang unsigned int atime_quantum; 99c0123adeSTiger Yang signed short slot; 10073c8a800SMark Fasheh int localalloc_opt; 101d02f00ccSMark Fasheh unsigned int resv_level; 10283f92318SMark Fasheh int dir_resv_level; 103b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 104c0123adeSTiger Yang }; 105c0123adeSTiger Yang 106ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 107c0123adeSTiger Yang struct mount_options *mopt, 108baf4661aSSunil Mushran int is_remount); 1095297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 1105297aad8SJan Kara struct mount_options *options); 11134c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root); 112ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 113ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 114ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 115ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 116ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 117ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 118ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 119ccd979bdSMark Fasheh 120726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 121ccd979bdSMark Fasheh 122ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 123ccd979bdSMark Fasheh 124ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 125ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 126bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 127ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 128ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 129ccd979bdSMark Fasheh struct buffer_head *bh, 13073be192bSJoel Becker u32 sectsize, 13173be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 132ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 133ccd979bdSMark Fasheh struct buffer_head *bh, 13473be192bSJoel Becker int sector_size, 13573be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 136ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 137ccd979bdSMark Fasheh struct buffer_head **bh, 138ccd979bdSMark Fasheh int block, 139ccd979bdSMark Fasheh int sect_size); 140ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 141ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 14219ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 14319ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 14419ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 145ccd979bdSMark Fasheh 146ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 147ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 148ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 149ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 150ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 151066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 152ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 153ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 154ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 155d550071cSSunil Mushran .show_options = ocfs2_show_options, 1569e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1579e33d69fSJan Kara .quota_write = ocfs2_quota_write, 158ccd979bdSMark Fasheh }; 159ccd979bdSMark Fasheh 160ccd979bdSMark Fasheh enum { 161ccd979bdSMark Fasheh Opt_barrier, 162ccd979bdSMark Fasheh Opt_err_panic, 163ccd979bdSMark Fasheh Opt_err_ro, 164ccd979bdSMark Fasheh Opt_intr, 165ccd979bdSMark Fasheh Opt_nointr, 166ccd979bdSMark Fasheh Opt_hb_none, 167ccd979bdSMark Fasheh Opt_hb_local, 1682c442719SSunil Mushran Opt_hb_global, 169ccd979bdSMark Fasheh Opt_data_ordered, 170ccd979bdSMark Fasheh Opt_data_writeback, 1717f1a37e3STiger Yang Opt_atime_quantum, 172baf4661aSSunil Mushran Opt_slot, 173d147b3d6SMark Fasheh Opt_commit, 1742fbe8d1eSSunil Mushran Opt_localalloc, 17553fc622bSMark Fasheh Opt_localflocks, 176b61817e1SJoel Becker Opt_stack, 177cf1d6c76STiger Yang Opt_user_xattr, 178cf1d6c76STiger Yang Opt_nouser_xattr, 17912462f1dSJoel Becker Opt_inode64, 180a68979b8STiger Yang Opt_acl, 181a68979b8STiger Yang Opt_noacl, 18219ece546SJan Kara Opt_usrquota, 18319ece546SJan Kara Opt_grpquota, 1847bdb0d18STristan Ye Opt_coherency_buffered, 1857bdb0d18STristan Ye Opt_coherency_full, 186d02f00ccSMark Fasheh Opt_resv_level, 18783f92318SMark Fasheh Opt_dir_resv_level, 188ccd979bdSMark Fasheh Opt_err, 189ccd979bdSMark Fasheh }; 190ccd979bdSMark Fasheh 191a447c093SSteven Whitehouse static const match_table_t tokens = { 192ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 193ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 194ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 195ccd979bdSMark Fasheh {Opt_intr, "intr"}, 196ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 197ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 198ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 1992c442719SSunil Mushran {Opt_hb_global, OCFS2_HB_GLOBAL}, 200ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 201ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 2027f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 203baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 204d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 2052fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 20653fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 207b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 208cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 209cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 21012462f1dSJoel Becker {Opt_inode64, "inode64"}, 211a68979b8STiger Yang {Opt_acl, "acl"}, 212a68979b8STiger Yang {Opt_noacl, "noacl"}, 21319ece546SJan Kara {Opt_usrquota, "usrquota"}, 21419ece546SJan Kara {Opt_grpquota, "grpquota"}, 2157bdb0d18STristan Ye {Opt_coherency_buffered, "coherency=buffered"}, 2167bdb0d18STristan Ye {Opt_coherency_full, "coherency=full"}, 217d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 21883f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 219ccd979bdSMark Fasheh {Opt_err, NULL} 220ccd979bdSMark Fasheh }; 221ccd979bdSMark Fasheh 22250397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 22350397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 22450397507SSunil Mushran { 22550397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 22650397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 227df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 228df152c24SSunil Mushran int i, out = 0; 22950397507SSunil Mushran 23050397507SSunil Mushran out += snprintf(buf + out, len - out, 23150397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 23250397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 23350397507SSunil Mushran osb->fs_generation, osb->vol_label); 23450397507SSunil Mushran 23550397507SSunil Mushran out += snprintf(buf + out, len - out, 23650397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 23750397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 23850397507SSunil Mushran 23950397507SSunil Mushran out += snprintf(buf + out, len - out, 24050397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 24150397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 24250397507SSunil Mushran 24350397507SSunil Mushran out += snprintf(buf + out, len - out, 24450397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 24550397507SSunil Mushran "ROcompat: 0x%X\n", 24650397507SSunil Mushran "Features", osb->s_feature_compat, 24750397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 24850397507SSunil Mushran 24950397507SSunil Mushran out += snprintf(buf + out, len - out, 25050397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 25150397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 25250397507SSunil Mushran 253c3d38840SSunil Mushran if (cconn) { 25450397507SSunil Mushran out += snprintf(buf + out, len - out, 255c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 256c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 25750397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 25850397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 25950397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 260c3d38840SSunil Mushran cconn->cc_version.pv_major, 261c3d38840SSunil Mushran cconn->cc_version.pv_minor); 262c3d38840SSunil Mushran } 26350397507SSunil Mushran 26450397507SSunil Mushran spin_lock(&osb->dc_task_lock); 26550397507SSunil Mushran out += snprintf(buf + out, len - out, 26650397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 26750397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 268c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 269c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 270c3d38840SSunil Mushran osb->dc_work_sequence); 27150397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 27250397507SSunil Mushran 27350397507SSunil Mushran spin_lock(&osb->osb_lock); 27450397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 27550397507SSunil Mushran "Recovery", 27650397507SSunil Mushran (osb->recovery_thread_task ? 27750397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 27850397507SSunil Mushran if (rm->rm_used == 0) 27950397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 28050397507SSunil Mushran else { 28150397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 28250397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 28350397507SSunil Mushran rm->rm_entries[i]); 28450397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 28550397507SSunil Mushran } 28650397507SSunil Mushran spin_unlock(&osb->osb_lock); 28750397507SSunil Mushran 28850397507SSunil Mushran out += snprintf(buf + out, len - out, 28950397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 290c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 291c3d38840SSunil Mushran osb->osb_commit_interval, 29250397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 29350397507SSunil Mushran 29450397507SSunil Mushran out += snprintf(buf + out, len - out, 295c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 29650397507SSunil Mushran "Journal", osb->journal->j_state, 297c3d38840SSunil Mushran osb->journal->j_trans_id, 298c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 29950397507SSunil Mushran 30050397507SSunil Mushran out += snprintf(buf + out, len - out, 30150397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 30250397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 30350397507SSunil Mushran "Stats", 30450397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 30550397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 30650397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 30750397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 30850397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 30950397507SSunil Mushran 31050397507SSunil Mushran out += snprintf(buf + out, len - out, 31150397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 31250397507SSunil Mushran "Default: %u bits\n", 31350397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 31450397507SSunil Mushran (unsigned long long)osb->la_last_gd, 31550397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 31650397507SSunil Mushran 31750397507SSunil Mushran spin_lock(&osb->osb_lock); 31850397507SSunil Mushran out += snprintf(buf + out, len - out, 319b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 320b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 32150397507SSunil Mushran osb->s_inode_steal_slot, 322b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 323b89c5428STiger Yang osb->s_meta_steal_slot, 324b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 32550397507SSunil Mushran spin_unlock(&osb->osb_lock); 32650397507SSunil Mushran 327df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 328df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 329df152c24SSunil Mushran os->os_count, os->os_seqno); 330df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 331df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 332df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 333df152c24SSunil Mushran else 334df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 335df152c24SSunil Mushran (get_seconds() - os->os_scantime.tv_sec)); 336df152c24SSunil Mushran 33750397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 33850397507SSunil Mushran "Slots", "Num", "RecoGen"); 33950397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 34050397507SSunil Mushran out += snprintf(buf + out, len - out, 34150397507SSunil Mushran "%10s %c %3d %10d\n", 34250397507SSunil Mushran " ", 34350397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 34450397507SSunil Mushran i, osb->slot_recovery_generations[i]); 34550397507SSunil Mushran } 34650397507SSunil Mushran 34750397507SSunil Mushran return out; 34850397507SSunil Mushran } 34950397507SSunil Mushran 35050397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 35150397507SSunil Mushran { 35250397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 35350397507SSunil Mushran char *buf = NULL; 35450397507SSunil Mushran 35550397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 35650397507SSunil Mushran if (!buf) 35750397507SSunil Mushran goto bail; 35850397507SSunil Mushran 35950397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 36050397507SSunil Mushran 36150397507SSunil Mushran file->private_data = buf; 36250397507SSunil Mushran 36350397507SSunil Mushran return 0; 36450397507SSunil Mushran bail: 36550397507SSunil Mushran return -ENOMEM; 36650397507SSunil Mushran } 36750397507SSunil Mushran 36850397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36950397507SSunil Mushran { 37050397507SSunil Mushran kfree(file->private_data); 37150397507SSunil Mushran return 0; 37250397507SSunil Mushran } 37350397507SSunil Mushran 37450397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 37550397507SSunil Mushran size_t nbytes, loff_t *ppos) 37650397507SSunil Mushran { 37750397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 37850397507SSunil Mushran i_size_read(file->f_mapping->host)); 37950397507SSunil Mushran } 38050397507SSunil Mushran #else 38150397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 38250397507SSunil Mushran { 38350397507SSunil Mushran return 0; 38450397507SSunil Mushran } 38550397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 38650397507SSunil Mushran { 38750397507SSunil Mushran return 0; 38850397507SSunil Mushran } 38950397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 39050397507SSunil Mushran size_t nbytes, loff_t *ppos) 39150397507SSunil Mushran { 39250397507SSunil Mushran return 0; 39350397507SSunil Mushran } 39450397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 39550397507SSunil Mushran 396828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 39750397507SSunil Mushran .open = ocfs2_osb_debug_open, 39850397507SSunil Mushran .release = ocfs2_debug_release, 39950397507SSunil Mushran .read = ocfs2_debug_read, 40050397507SSunil Mushran .llseek = generic_file_llseek, 40150397507SSunil Mushran }; 40250397507SSunil Mushran 403ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 404ccd979bdSMark Fasheh { 405bddb8eb3SDenis Cheng int status; 406ccd979bdSMark Fasheh tid_t target; 407ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 408ccd979bdSMark Fasheh 409ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 410ccd979bdSMark Fasheh return -EROFS; 411ccd979bdSMark Fasheh 412ccd979bdSMark Fasheh if (wait) { 413ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 414ccd979bdSMark Fasheh if (status < 0) 415ccd979bdSMark Fasheh mlog_errno(status); 416ccd979bdSMark Fasheh } else { 417ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 418ccd979bdSMark Fasheh } 419ccd979bdSMark Fasheh 4202b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 4212b4e30fbSJoel Becker &target)) { 422ccd979bdSMark Fasheh if (wait) 4232b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 424ccd979bdSMark Fasheh target); 425ccd979bdSMark Fasheh } 426ccd979bdSMark Fasheh return 0; 427ccd979bdSMark Fasheh } 428ccd979bdSMark Fasheh 4291a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4301a224ad1SJan Kara { 4311a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4321a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4331a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4341a224ad1SJan Kara return 0; 4351a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4361a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4371a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4381a224ad1SJan Kara return 0; 4391a224ad1SJan Kara return 1; 4401a224ad1SJan Kara } 4411a224ad1SJan Kara 442ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 443ccd979bdSMark Fasheh { 444ccd979bdSMark Fasheh struct inode *new = NULL; 445ccd979bdSMark Fasheh int status = 0; 446ccd979bdSMark Fasheh int i; 447ccd979bdSMark Fasheh 4485fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 449ccd979bdSMark Fasheh if (IS_ERR(new)) { 450ccd979bdSMark Fasheh status = PTR_ERR(new); 451ccd979bdSMark Fasheh mlog_errno(status); 452ccd979bdSMark Fasheh goto bail; 453ccd979bdSMark Fasheh } 454ccd979bdSMark Fasheh osb->root_inode = new; 455ccd979bdSMark Fasheh 4565fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 457ccd979bdSMark Fasheh if (IS_ERR(new)) { 458ccd979bdSMark Fasheh status = PTR_ERR(new); 459ccd979bdSMark Fasheh mlog_errno(status); 460ccd979bdSMark Fasheh goto bail; 461ccd979bdSMark Fasheh } 462ccd979bdSMark Fasheh osb->sys_root_inode = new; 463ccd979bdSMark Fasheh 464ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 465ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4661a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4671a224ad1SJan Kara continue; 468ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 469ccd979bdSMark Fasheh if (!new) { 470ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 471ccd979bdSMark Fasheh status = -EINVAL; 472ccd979bdSMark Fasheh mlog_errno(status); 473ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 474ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 475ccd979bdSMark Fasheh "possibly corrupt fs?", i); 476ccd979bdSMark Fasheh goto bail; 477ccd979bdSMark Fasheh } 478ccd979bdSMark Fasheh // the array now has one ref, so drop this one 479ccd979bdSMark Fasheh iput(new); 480ccd979bdSMark Fasheh } 481ccd979bdSMark Fasheh 482ccd979bdSMark Fasheh bail: 483c1e8d35eSTao Ma if (status) 484c1e8d35eSTao Ma mlog_errno(status); 485ccd979bdSMark Fasheh return status; 486ccd979bdSMark Fasheh } 487ccd979bdSMark Fasheh 488ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 489ccd979bdSMark Fasheh { 490ccd979bdSMark Fasheh struct inode *new = NULL; 491ccd979bdSMark Fasheh int status = 0; 492ccd979bdSMark Fasheh int i; 493ccd979bdSMark Fasheh 494ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 495ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 496ccd979bdSMark Fasheh i++) { 4971a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4981a224ad1SJan Kara continue; 499ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 500ccd979bdSMark Fasheh if (!new) { 501ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 502ccd979bdSMark Fasheh status = -EINVAL; 503ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 504ccd979bdSMark Fasheh status, i, osb->slot_num); 505ccd979bdSMark Fasheh goto bail; 506ccd979bdSMark Fasheh } 507ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 508ccd979bdSMark Fasheh iput(new); 509ccd979bdSMark Fasheh } 510ccd979bdSMark Fasheh 511ccd979bdSMark Fasheh bail: 512c1e8d35eSTao Ma if (status) 513c1e8d35eSTao Ma mlog_errno(status); 514ccd979bdSMark Fasheh return status; 515ccd979bdSMark Fasheh } 516ccd979bdSMark Fasheh 517bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 518ccd979bdSMark Fasheh { 519bddb8eb3SDenis Cheng int i; 520ccd979bdSMark Fasheh struct inode *inode; 521ccd979bdSMark Fasheh 522b4d693fcSTao Ma for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { 523b4d693fcSTao Ma inode = osb->global_system_inodes[i]; 524ccd979bdSMark Fasheh if (inode) { 525ccd979bdSMark Fasheh iput(inode); 526b4d693fcSTao Ma osb->global_system_inodes[i] = NULL; 527ccd979bdSMark Fasheh } 528ccd979bdSMark Fasheh } 529ccd979bdSMark Fasheh 530ccd979bdSMark Fasheh inode = osb->sys_root_inode; 531ccd979bdSMark Fasheh if (inode) { 532ccd979bdSMark Fasheh iput(inode); 533ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 534ccd979bdSMark Fasheh } 535ccd979bdSMark Fasheh 536ccd979bdSMark Fasheh inode = osb->root_inode; 537ccd979bdSMark Fasheh if (inode) { 538ccd979bdSMark Fasheh iput(inode); 539ccd979bdSMark Fasheh osb->root_inode = NULL; 540ccd979bdSMark Fasheh } 541ccd979bdSMark Fasheh 542b4d693fcSTao Ma if (!osb->local_system_inodes) 543c1e8d35eSTao Ma return; 544b4d693fcSTao Ma 545b4d693fcSTao Ma for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { 546b4d693fcSTao Ma if (osb->local_system_inodes[i]) { 547b4d693fcSTao Ma iput(osb->local_system_inodes[i]); 548b4d693fcSTao Ma osb->local_system_inodes[i] = NULL; 549b4d693fcSTao Ma } 550b4d693fcSTao Ma } 551b4d693fcSTao Ma 552b4d693fcSTao Ma kfree(osb->local_system_inodes); 553b4d693fcSTao Ma osb->local_system_inodes = NULL; 554ccd979bdSMark Fasheh } 555ccd979bdSMark Fasheh 556ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 557ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 558ccd979bdSMark Fasheh { 559ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 560ccd979bdSMark Fasheh 561e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 562ccd979bdSMark Fasheh if (!oi) 563ccd979bdSMark Fasheh return NULL; 564ccd979bdSMark Fasheh 5652b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 566ccd979bdSMark Fasheh return &oi->vfs_inode; 567ccd979bdSMark Fasheh } 568ccd979bdSMark Fasheh 569fa0d7e3dSNick Piggin static void ocfs2_i_callback(struct rcu_head *head) 570fa0d7e3dSNick Piggin { 571fa0d7e3dSNick Piggin struct inode *inode = container_of(head, struct inode, i_rcu); 572fa0d7e3dSNick Piggin kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 573fa0d7e3dSNick Piggin } 574fa0d7e3dSNick Piggin 575ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 576ccd979bdSMark Fasheh { 577fa0d7e3dSNick Piggin call_rcu(&inode->i_rcu, ocfs2_i_callback); 578ccd979bdSMark Fasheh } 579ccd979bdSMark Fasheh 5805a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5815a254031SMark Fasheh unsigned int cbits) 582ccd979bdSMark Fasheh { 5835a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5845a254031SMark Fasheh unsigned int trim = bytes; 5855a254031SMark Fasheh unsigned int bitshift = 32; 586ccd979bdSMark Fasheh 5875a254031SMark Fasheh /* 5885a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5895a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5905a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 591ccd979bdSMark Fasheh */ 592ccd979bdSMark Fasheh 593ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 59490c699a9SBartlomiej Zolnierkiewicz # if defined(CONFIG_LBDAF) 5952ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5965a254031SMark Fasheh /* 5975a254031SMark Fasheh * We might be limited by page cache size. 5985a254031SMark Fasheh */ 5995a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 6005a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 6015a254031SMark Fasheh trim = 1; 6025a254031SMark Fasheh /* 6035a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 6045a254031SMark Fasheh * MAX_LFS_FILESIZE 6055a254031SMark Fasheh */ 6065a254031SMark Fasheh bitshift = 31; 6075a254031SMark Fasheh } 608ccd979bdSMark Fasheh # else 6095a254031SMark Fasheh /* 6105a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 6115a254031SMark Fasheh * that's what we expose to the VFS. 6125a254031SMark Fasheh */ 6135a254031SMark Fasheh bytes = 1 << bbits; 6145a254031SMark Fasheh trim = 1; 6155a254031SMark Fasheh bitshift = 31; 616ccd979bdSMark Fasheh # endif 617ccd979bdSMark Fasheh #endif 618ccd979bdSMark Fasheh 6195a254031SMark Fasheh /* 6205a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 6215a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 6225a254031SMark Fasheh * an extent start is at the max offset. 6235a254031SMark Fasheh */ 6245a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 625ccd979bdSMark Fasheh } 626ccd979bdSMark Fasheh 627ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 628ccd979bdSMark Fasheh { 629ccd979bdSMark Fasheh int incompat_features; 630ccd979bdSMark Fasheh int ret = 0; 631c0123adeSTiger Yang struct mount_options parsed_options; 632ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 6332c442719SSunil Mushran u32 tmp; 634ccd979bdSMark Fasheh 6355297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6365297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 637ccd979bdSMark Fasheh ret = -EINVAL; 638ccd979bdSMark Fasheh goto out; 639ccd979bdSMark Fasheh } 640ccd979bdSMark Fasheh 6412c442719SSunil Mushran tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | 6422c442719SSunil Mushran OCFS2_MOUNT_HB_NONE; 6432c442719SSunil Mushran if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 644ccd979bdSMark Fasheh ret = -EINVAL; 645ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 646ccd979bdSMark Fasheh goto out; 647ccd979bdSMark Fasheh } 648ccd979bdSMark Fasheh 649ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 650c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 651ccd979bdSMark Fasheh ret = -EINVAL; 652ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 653ccd979bdSMark Fasheh goto out; 654ccd979bdSMark Fasheh } 655ccd979bdSMark Fasheh 65612462f1dSJoel Becker /* Probably don't want this on remount; it might 65712462f1dSJoel Becker * mess with other nodes */ 65812462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 65912462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 66012462f1dSJoel Becker ret = -EINVAL; 66112462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 66212462f1dSJoel Becker goto out; 66312462f1dSJoel Becker } 66412462f1dSJoel Becker 665ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 666ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 66719ece546SJan Kara /* Disable quota accounting before remounting RO */ 66819ece546SJan Kara if (*flags & MS_RDONLY) { 66919ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 67019ece546SJan Kara if (ret < 0) 67119ece546SJan Kara goto out; 67219ece546SJan Kara } 673ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 674ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 675ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 676ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 677ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 678ccd979bdSMark Fasheh ret = -EROFS; 679ccd979bdSMark Fasheh goto unlock_osb; 680ccd979bdSMark Fasheh } 681ccd979bdSMark Fasheh 682ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 683ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 684ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 685ccd979bdSMark Fasheh } else { 686ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 687ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 688ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 689ccd979bdSMark Fasheh ret = -EROFS; 690ccd979bdSMark Fasheh goto unlock_osb; 691ccd979bdSMark Fasheh } 692ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 693ccd979bdSMark Fasheh if (incompat_features) { 694ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 695ccd979bdSMark Fasheh "of unsupported optional features " 696ccd979bdSMark Fasheh "(%x).\n", incompat_features); 697ccd979bdSMark Fasheh ret = -EINVAL; 698ccd979bdSMark Fasheh goto unlock_osb; 699ccd979bdSMark Fasheh } 700ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 701ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 702ccd979bdSMark Fasheh } 70332a42d39STao Ma trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); 704ccd979bdSMark Fasheh unlock_osb: 705ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 70619ece546SJan Kara /* Enable quota accounting after remounting RW */ 70719ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 70819ece546SJan Kara if (sb_any_quota_suspended(sb)) 70919ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 71019ece546SJan Kara else 71119ece546SJan Kara ret = ocfs2_enable_quotas(osb); 71219ece546SJan Kara if (ret < 0) { 71319ece546SJan Kara /* Return back changes... */ 71419ece546SJan Kara spin_lock(&osb->osb_lock); 71519ece546SJan Kara sb->s_flags |= MS_RDONLY; 71619ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 71719ece546SJan Kara spin_unlock(&osb->osb_lock); 71819ece546SJan Kara goto out; 71919ece546SJan Kara } 72019ece546SJan Kara } 721ccd979bdSMark Fasheh } 722ccd979bdSMark Fasheh 723ccd979bdSMark Fasheh if (!ret) { 724ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 725ccd979bdSMark Fasheh * remount. */ 726c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 727c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 728c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 729d147b3d6SMark Fasheh if (parsed_options.commit_interval) 730d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 731e001e796SMark Fasheh 732e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 733e001e796SMark Fasheh ocfs2_set_journal_params(osb); 73457b09bb5SJan Kara 73557b09bb5SJan Kara sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 73657b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 73757b09bb5SJan Kara MS_POSIXACL : 0); 738ccd979bdSMark Fasheh } 739ccd979bdSMark Fasheh out: 740ccd979bdSMark Fasheh return ret; 741ccd979bdSMark Fasheh } 742ccd979bdSMark Fasheh 743ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 744ccd979bdSMark Fasheh struct buffer_head **bh, 74573be192bSJoel Becker int *sector_size, 74673be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 747ccd979bdSMark Fasheh { 748bddb8eb3SDenis Cheng int status, tmpstat; 749ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 750ccd979bdSMark Fasheh struct ocfs2_dinode *di; 751ccd979bdSMark Fasheh int blksize; 752ccd979bdSMark Fasheh 753ccd979bdSMark Fasheh *bh = NULL; 754ccd979bdSMark Fasheh 755ccd979bdSMark Fasheh /* may be > 512 */ 756e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 757ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 758ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 759ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 760ccd979bdSMark Fasheh status = -EINVAL; 761ccd979bdSMark Fasheh goto bail; 762ccd979bdSMark Fasheh } 763ccd979bdSMark Fasheh 764ccd979bdSMark Fasheh /* Can this really happen? */ 765ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 766ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 767ccd979bdSMark Fasheh 768ccd979bdSMark Fasheh /* check block zero for old format */ 769ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 770ccd979bdSMark Fasheh if (status < 0) { 771ccd979bdSMark Fasheh mlog_errno(status); 772ccd979bdSMark Fasheh goto bail; 773ccd979bdSMark Fasheh } 774ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 775ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 776ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 777ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 778ccd979bdSMark Fasheh status = -EINVAL; 779ccd979bdSMark Fasheh } 780ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 781ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 782ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 783ccd979bdSMark Fasheh hdr->signature); 784ccd979bdSMark Fasheh status = -EINVAL; 785ccd979bdSMark Fasheh } 786ccd979bdSMark Fasheh brelse(*bh); 787ccd979bdSMark Fasheh *bh = NULL; 788ccd979bdSMark Fasheh if (status < 0) { 789ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 790ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 791ccd979bdSMark Fasheh goto bail; 792ccd979bdSMark Fasheh } 793ccd979bdSMark Fasheh 794ccd979bdSMark Fasheh /* 795ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 796ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 797ccd979bdSMark Fasheh * the minimum clustersize. 798ccd979bdSMark Fasheh */ 799ccd979bdSMark Fasheh status = -EINVAL; 800ccd979bdSMark Fasheh for (blksize = *sector_size; 801ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 802ccd979bdSMark Fasheh blksize <<= 1) { 803ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 804ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 805ccd979bdSMark Fasheh blksize); 806ccd979bdSMark Fasheh if (tmpstat < 0) { 807ccd979bdSMark Fasheh status = tmpstat; 808ccd979bdSMark Fasheh mlog_errno(status); 809fb5cbe9eSJoel Becker break; 810ccd979bdSMark Fasheh } 811ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 81273be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 8131c1d9793SJan Kara spin_lock_init(&stats->b_lock); 814fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 815fb5cbe9eSJoel Becker if (tmpstat < 0) { 816ccd979bdSMark Fasheh brelse(*bh); 817ccd979bdSMark Fasheh *bh = NULL; 818fb5cbe9eSJoel Becker } 819fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 820fb5cbe9eSJoel Becker status = tmpstat; 821ccd979bdSMark Fasheh break; 822ccd979bdSMark Fasheh } 823fb5cbe9eSJoel Becker } 824ccd979bdSMark Fasheh 825ccd979bdSMark Fasheh bail: 826ccd979bdSMark Fasheh return status; 827ccd979bdSMark Fasheh } 828ccd979bdSMark Fasheh 829c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 830c271c5c2SSunil Mushran { 8312c442719SSunil Mushran u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; 8322c442719SSunil Mushran 8332c442719SSunil Mushran if (osb->s_mount_opt & hb_enabled) { 834c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 835c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 836c271c5c2SSunil Mushran "mounted device.\n"); 837c271c5c2SSunil Mushran return -EINVAL; 838c271c5c2SSunil Mushran } 839b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 840b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 841b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 842b61817e1SJoel Becker return -EINVAL; 843b61817e1SJoel Becker } 8442c442719SSunil Mushran if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && 8452c442719SSunil Mushran !ocfs2_cluster_o2cb_global_heartbeat(osb)) || 8462c442719SSunil Mushran ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && 8472c442719SSunil Mushran ocfs2_cluster_o2cb_global_heartbeat(osb))) { 8482c442719SSunil Mushran mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); 8492c442719SSunil Mushran return -EINVAL; 8502c442719SSunil Mushran } 851b61817e1SJoel Becker } 852b61817e1SJoel Becker 8532c442719SSunil Mushran if (!(osb->s_mount_opt & hb_enabled)) { 854b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 855b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 856c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 857c271c5c2SSunil Mushran "a read-write clustered device.\n"); 858c271c5c2SSunil Mushran return -EINVAL; 859c271c5c2SSunil Mushran } 860c271c5c2SSunil Mushran } 861c271c5c2SSunil Mushran 862c271c5c2SSunil Mushran return 0; 863c271c5c2SSunil Mushran } 864c271c5c2SSunil Mushran 865b61817e1SJoel Becker /* 866b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 867b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 868b61817e1SJoel Becker * have passed a stack. 869b61817e1SJoel Becker */ 870b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 871b61817e1SJoel Becker struct mount_options *mopt) 872b61817e1SJoel Becker { 873b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 874b61817e1SJoel Becker mlog(ML_ERROR, 875b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 876b61817e1SJoel Becker "does not support it\n"); 877b61817e1SJoel Becker return -EINVAL; 878b61817e1SJoel Becker } 879b61817e1SJoel Becker 880b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 881b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 882b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 883b61817e1SJoel Becker mlog(ML_ERROR, 884b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 885b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 886b61817e1SJoel Becker mopt->cluster_stack, 887b61817e1SJoel Becker osb->osb_cluster_stack); 888b61817e1SJoel Becker return -EINVAL; 889b61817e1SJoel Becker } 890b61817e1SJoel Becker 891b61817e1SJoel Becker return 0; 892b61817e1SJoel Becker } 893b61817e1SJoel Becker 89419ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 89519ece546SJan Kara { 89619ece546SJan Kara int type; 89719ece546SJan Kara struct super_block *sb = osb->sb; 89819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 89919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 90019ece546SJan Kara int status = 0; 90119ece546SJan Kara 90219ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 90319ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 90419ece546SJan Kara continue; 90519ece546SJan Kara if (unsuspend) 9060f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 907eea7feb0SJan Kara else { 908eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 909eea7feb0SJan Kara 910eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 911eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 912eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 9130f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 914eea7feb0SJan Kara } 91519ece546SJan Kara if (status < 0) 91619ece546SJan Kara break; 91719ece546SJan Kara } 91819ece546SJan Kara if (status < 0) 91919ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 92019ece546SJan Kara "remount (error = %d).\n", status); 92119ece546SJan Kara return status; 92219ece546SJan Kara } 92319ece546SJan Kara 92419ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 92519ece546SJan Kara { 92619ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 92719ece546SJan Kara struct super_block *sb = osb->sb; 92819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 92919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 93019ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 93119ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 93219ece546SJan Kara int status; 93319ece546SJan Kara int type; 93419ece546SJan Kara 93519ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 93619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 93719ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 93819ece546SJan Kara continue; 93919ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 94019ece546SJan Kara osb->slot_num); 94119ece546SJan Kara if (!inode[type]) { 94219ece546SJan Kara status = -ENOENT; 94319ece546SJan Kara goto out_quota_off; 94419ece546SJan Kara } 945287a8095SChristoph Hellwig status = dquot_enable(inode[type], type, QFMT_OCFS2, 94619ece546SJan Kara DQUOT_USAGE_ENABLED); 94719ece546SJan Kara if (status < 0) 94819ece546SJan Kara goto out_quota_off; 94919ece546SJan Kara } 95019ece546SJan Kara 95119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 95219ece546SJan Kara iput(inode[type]); 95319ece546SJan Kara return 0; 95419ece546SJan Kara out_quota_off: 95519ece546SJan Kara ocfs2_disable_quotas(osb); 95619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 95719ece546SJan Kara iput(inode[type]); 95819ece546SJan Kara mlog_errno(status); 95919ece546SJan Kara return status; 96019ece546SJan Kara } 96119ece546SJan Kara 96219ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 96319ece546SJan Kara { 96419ece546SJan Kara int type; 96519ece546SJan Kara struct inode *inode; 96619ece546SJan Kara struct super_block *sb = osb->sb; 967c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 96819ece546SJan Kara 96919ece546SJan Kara /* We mostly ignore errors in this function because there's not much 97019ece546SJan Kara * we can do when we see them */ 97119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 97219ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 97319ece546SJan Kara continue; 974c06bcbfaSJan Kara /* Cancel periodic syncing before we grab dqonoff_mutex */ 975c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 976c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 97719ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 97819ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 97919ece546SJan Kara * memory and so they will be automatically synced to global 98019ece546SJan Kara * quota files */ 9810f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 98219ece546SJan Kara DQUOT_LIMITS_ENABLED); 98319ece546SJan Kara if (!inode) 98419ece546SJan Kara continue; 98519ece546SJan Kara iput(inode); 98619ece546SJan Kara } 98719ece546SJan Kara } 98819ece546SJan Kara 98919ece546SJan Kara /* Handle quota on quotactl */ 990f00c9e44SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id) 99119ece546SJan Kara { 99219ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 99319ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 99419ece546SJan Kara 99519ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 99619ece546SJan Kara return -EINVAL; 99719ece546SJan Kara 998287a8095SChristoph Hellwig return dquot_enable(sb_dqopt(sb)->files[type], type, 99919ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 100019ece546SJan Kara } 100119ece546SJan Kara 100219ece546SJan Kara /* Handle quota off quotactl */ 1003307ae18aSChristoph Hellwig static int ocfs2_quota_off(struct super_block *sb, int type) 100419ece546SJan Kara { 10050f0dd62fSChristoph Hellwig return dquot_disable(sb, type, DQUOT_LIMITS_ENABLED); 100619ece546SJan Kara } 100719ece546SJan Kara 10080d54b217SAlexey Dobriyan static const struct quotactl_ops ocfs2_quotactl_ops = { 1009f00c9e44SJan Kara .quota_on_meta = ocfs2_quota_on, 101019ece546SJan Kara .quota_off = ocfs2_quota_off, 1011287a8095SChristoph Hellwig .quota_sync = dquot_quota_sync, 1012287a8095SChristoph Hellwig .get_info = dquot_get_dqinfo, 1013287a8095SChristoph Hellwig .set_info = dquot_set_dqinfo, 1014287a8095SChristoph Hellwig .get_dqblk = dquot_get_dqblk, 1015287a8095SChristoph Hellwig .set_dqblk = dquot_set_dqblk, 101619ece546SJan Kara }; 101719ece546SJan Kara 1018ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 1019ccd979bdSMark Fasheh { 1020ccd979bdSMark Fasheh struct dentry *root; 1021ccd979bdSMark Fasheh int status, sector_size; 1022c0123adeSTiger Yang struct mount_options parsed_options; 1023ccd979bdSMark Fasheh struct inode *inode = NULL; 1024ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1025ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1026c271c5c2SSunil Mushran char nodestr[8]; 102773be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 1028ccd979bdSMark Fasheh 102932a42d39STao Ma trace_ocfs2_fill_super(sb, data, silent); 1030ccd979bdSMark Fasheh 1031c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 1032c271c5c2SSunil Mushran status = -EINVAL; 1033c271c5c2SSunil Mushran goto read_super_error; 1034c271c5c2SSunil Mushran } 1035c271c5c2SSunil Mushran 1036ccd979bdSMark Fasheh /* probe for superblock */ 103773be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1038ccd979bdSMark Fasheh if (status < 0) { 1039ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1040ccd979bdSMark Fasheh goto read_super_error; 1041ccd979bdSMark Fasheh } 1042ccd979bdSMark Fasheh 104373be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1044ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1045ccd979bdSMark Fasheh if (status < 0) { 1046ccd979bdSMark Fasheh mlog_errno(status); 1047ccd979bdSMark Fasheh goto read_super_error; 1048ccd979bdSMark Fasheh } 1049ccd979bdSMark Fasheh brelse(bh); 1050ccd979bdSMark Fasheh bh = NULL; 1051a68979b8STiger Yang 10525297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10535297aad8SJan Kara status = -EINVAL; 10545297aad8SJan Kara goto read_super_error; 10555297aad8SJan Kara } 1056c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1057c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1058c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1059d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 106073c8a800SMark Fasheh 106173c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1062d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 106383f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 106483f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 106583f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 106683f92318SMark Fasheh else 106783f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1068ccd979bdSMark Fasheh 1069b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1070b61817e1SJoel Becker if (status) 1071b61817e1SJoel Becker goto read_super_error; 1072b61817e1SJoel Becker 1073ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1074ccd979bdSMark Fasheh 10759e1f1de0SAl Viro sb->s_flags = (sb->s_flags & ~(MS_POSIXACL | MS_NOSEC)) | 1076a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1077a68979b8STiger Yang 1078ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1079ccd979bdSMark Fasheh * heartbeat=none */ 1080ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1081ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1082ccd979bdSMark Fasheh status = -EACCES; 1083ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1084ccd979bdSMark Fasheh "mount was not specified.\n"); 1085ccd979bdSMark Fasheh goto read_super_error; 1086ccd979bdSMark Fasheh } 1087ccd979bdSMark Fasheh 1088ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1089ccd979bdSMark Fasheh * on a readonly device. */ 1090ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1091ccd979bdSMark Fasheh status = -EROFS; 1092ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1093ccd979bdSMark Fasheh "device.\n"); 1094ccd979bdSMark Fasheh goto read_super_error; 1095ccd979bdSMark Fasheh } 1096ccd979bdSMark Fasheh 1097ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1098ccd979bdSMark Fasheh if (status < 0) { 1099ccd979bdSMark Fasheh if (status == -EROFS) 1100ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1101ccd979bdSMark Fasheh "file system, but write access is " 1102ccd979bdSMark Fasheh "unavailable.\n"); 1103ccd979bdSMark Fasheh else 1104ccd979bdSMark Fasheh mlog_errno(status); 1105ccd979bdSMark Fasheh goto read_super_error; 1106ccd979bdSMark Fasheh } 1107ccd979bdSMark Fasheh 1108ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1109ccd979bdSMark Fasheh 1110619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Readonly device (%s) detected. " 1111619c200dSSunil Mushran "Cluster services will not be used for this mount. " 1112619c200dSSunil Mushran "Recovery will be skipped.\n", osb->dev_str); 1113ccd979bdSMark Fasheh } 1114ccd979bdSMark Fasheh 1115ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1116ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1117ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1118ccd979bdSMark Fasheh } 1119ccd979bdSMark Fasheh 1120c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1121c271c5c2SSunil Mushran if (status < 0) { 1122c271c5c2SSunil Mushran mlog_errno(status); 1123c271c5c2SSunil Mushran goto read_super_error; 1124c271c5c2SSunil Mushran } 1125c271c5c2SSunil Mushran 1126ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1127ccd979bdSMark Fasheh ocfs2_debugfs_root); 1128ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1129ccd979bdSMark Fasheh status = -EINVAL; 1130ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1131ccd979bdSMark Fasheh goto read_super_error; 1132ccd979bdSMark Fasheh } 1133ccd979bdSMark Fasheh 113450397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 113550397507SSunil Mushran osb->osb_debug_root, 113650397507SSunil Mushran osb, 113750397507SSunil Mushran &ocfs2_osb_debug_fops); 113850397507SSunil Mushran if (!osb->osb_ctxt) { 113950397507SSunil Mushran status = -EINVAL; 114050397507SSunil Mushran mlog_errno(status); 114150397507SSunil Mushran goto read_super_error; 114250397507SSunil Mushran } 114350397507SSunil Mushran 114473be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 114573be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 114673be192bSJoel Becker &osb->osb_ecc_stats, 114773be192bSJoel Becker osb->osb_debug_root); 114873be192bSJoel Becker if (status) { 114973be192bSJoel Becker mlog(ML_ERROR, 115073be192bSJoel Becker "Unable to create blockcheck statistics " 115173be192bSJoel Becker "files\n"); 115273be192bSJoel Becker goto read_super_error; 115373be192bSJoel Becker } 115473be192bSJoel Becker } 115573be192bSJoel Becker 1156ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1157ccd979bdSMark Fasheh if (status < 0) 1158ccd979bdSMark Fasheh goto read_super_error; 1159ccd979bdSMark Fasheh 1160be0d93f0SAl Viro if (osb->root_inode) 1161be0d93f0SAl Viro inode = igrab(osb->root_inode); 1162be0d93f0SAl Viro 1163ccd979bdSMark Fasheh if (!inode) { 1164ccd979bdSMark Fasheh status = -EIO; 1165ccd979bdSMark Fasheh mlog_errno(status); 1166ccd979bdSMark Fasheh goto read_super_error; 1167ccd979bdSMark Fasheh } 1168ccd979bdSMark Fasheh 116948fde701SAl Viro root = d_make_root(inode); 1170ccd979bdSMark Fasheh if (!root) { 1171ccd979bdSMark Fasheh status = -ENOMEM; 1172ccd979bdSMark Fasheh mlog_errno(status); 1173ccd979bdSMark Fasheh goto read_super_error; 1174ccd979bdSMark Fasheh } 1175ccd979bdSMark Fasheh 1176ccd979bdSMark Fasheh sb->s_root = root; 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1179ccd979bdSMark Fasheh 1180c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1181c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1182c271c5c2SSunil Mushran else 118319fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1184c271c5c2SSunil Mushran 1185c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1186781ee3e2SSunil Mushran "with %s data mode.\n", 1187c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1188ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1189ccd979bdSMark Fasheh "ordered"); 1190ccd979bdSMark Fasheh 1191ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1192ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1193ccd979bdSMark Fasheh 119419ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 119519ece546SJan Kara * for cluster locks recovery now. That also means that truncation 119619ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 119719ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 119819ece546SJan Kara status = ocfs2_enable_quotas(osb); 119919ece546SJan Kara if (status < 0) { 120019ece546SJan Kara /* We have to err-out specially here because 120119ece546SJan Kara * s_root is already set */ 120219ece546SJan Kara mlog_errno(status); 120319ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 120419ece546SJan Kara wake_up(&osb->osb_mount_event); 120519ece546SJan Kara return status; 120619ece546SJan Kara } 120719ece546SJan Kara } 120819ece546SJan Kara 120919ece546SJan Kara ocfs2_complete_quota_recovery(osb); 121019ece546SJan Kara 121119ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 121219ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 121319ece546SJan Kara wake_up(&osb->osb_mount_event); 121419ece546SJan Kara 1215df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 12168b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1217df152c24SSunil Mushran 1218ccd979bdSMark Fasheh return status; 1219ccd979bdSMark Fasheh 1220ccd979bdSMark Fasheh read_super_error: 1221ccd979bdSMark Fasheh brelse(bh); 1222ccd979bdSMark Fasheh 1223ccd979bdSMark Fasheh if (osb) { 1224ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1225ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1226ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1227ccd979bdSMark Fasheh } 1228ccd979bdSMark Fasheh 1229c1e8d35eSTao Ma if (status) 1230c1e8d35eSTao Ma mlog_errno(status); 1231ccd979bdSMark Fasheh return status; 1232ccd979bdSMark Fasheh } 1233ccd979bdSMark Fasheh 1234152a0836SAl Viro static struct dentry *ocfs2_mount(struct file_system_type *fs_type, 1235ccd979bdSMark Fasheh int flags, 1236ccd979bdSMark Fasheh const char *dev_name, 1237152a0836SAl Viro void *data) 1238ccd979bdSMark Fasheh { 1239152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); 1240ccd979bdSMark Fasheh } 1241ccd979bdSMark Fasheh 1242f7b1aa69SJan Kara static void ocfs2_kill_sb(struct super_block *sb) 1243f7b1aa69SJan Kara { 1244f7b1aa69SJan Kara struct ocfs2_super *osb = OCFS2_SB(sb); 1245f7b1aa69SJan Kara 12465fd13189SJan Kara /* Failed mount? */ 12475fd13189SJan Kara if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) 12485fd13189SJan Kara goto out; 12495fd13189SJan Kara 1250f7b1aa69SJan Kara /* Prevent further queueing of inode drop events */ 1251f7b1aa69SJan Kara spin_lock(&dentry_list_lock); 1252f7b1aa69SJan Kara ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); 1253f7b1aa69SJan Kara spin_unlock(&dentry_list_lock); 1254f7b1aa69SJan Kara /* Wait for work to finish and/or remove it */ 1255f7b1aa69SJan Kara cancel_work_sync(&osb->dentry_lock_work); 12565fd13189SJan Kara out: 1257f7b1aa69SJan Kara kill_block_super(sb); 1258f7b1aa69SJan Kara } 1259f7b1aa69SJan Kara 1260ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1261ccd979bdSMark Fasheh .owner = THIS_MODULE, 1262ccd979bdSMark Fasheh .name = "ocfs2", 1263152a0836SAl Viro .mount = ocfs2_mount, 1264f7b1aa69SJan Kara .kill_sb = ocfs2_kill_sb, 1265f7b1aa69SJan Kara 12661ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1267ccd979bdSMark Fasheh .next = NULL 1268ccd979bdSMark Fasheh }; 1269ccd979bdSMark Fasheh 12705297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12715297aad8SJan Kara struct mount_options *options) 12725297aad8SJan Kara { 12735297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12745297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12755297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12765297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12775297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12785297aad8SJan Kara return 0; 12795297aad8SJan Kara } 12805297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12815297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12825297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12835297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12845297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12855297aad8SJan Kara return 0; 12865297aad8SJan Kara } 12875297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12885297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12895297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12905297aad8SJan Kara "feature is not enabled\n"); 12915297aad8SJan Kara return 0; 12925297aad8SJan Kara } 12935297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12945297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12955297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12965297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12975297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 12985297aad8SJan Kara else 12995297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 13005297aad8SJan Kara } 13015297aad8SJan Kara return 1; 13025297aad8SJan Kara } 13035297aad8SJan Kara 1304ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1305ccd979bdSMark Fasheh char *options, 1306c0123adeSTiger Yang struct mount_options *mopt, 1307ccd979bdSMark Fasheh int is_remount) 1308ccd979bdSMark Fasheh { 130952c303c5SMark Fasheh int status, user_stack = 0; 1310ccd979bdSMark Fasheh char *p; 13112c442719SSunil Mushran u32 tmp; 1312ccd979bdSMark Fasheh 131332a42d39STao Ma trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); 1314ccd979bdSMark Fasheh 1315d147b3d6SMark Fasheh mopt->commit_interval = 0; 13164b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1317c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1318c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 131973c8a800SMark Fasheh mopt->localalloc_opt = -1; 1320b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1321d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 132283f92318SMark Fasheh mopt->dir_resv_level = -1; 1323ccd979bdSMark Fasheh 1324ccd979bdSMark Fasheh if (!options) { 1325ccd979bdSMark Fasheh status = 1; 1326ccd979bdSMark Fasheh goto bail; 1327ccd979bdSMark Fasheh } 1328ccd979bdSMark Fasheh 1329ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1330ccd979bdSMark Fasheh int token, option; 1331ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1332ccd979bdSMark Fasheh 1333ccd979bdSMark Fasheh if (!*p) 1334ccd979bdSMark Fasheh continue; 1335ccd979bdSMark Fasheh 1336ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1337ccd979bdSMark Fasheh switch (token) { 1338ccd979bdSMark Fasheh case Opt_hb_local: 1339c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1340ccd979bdSMark Fasheh break; 1341ccd979bdSMark Fasheh case Opt_hb_none: 13422c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; 13432c442719SSunil Mushran break; 13442c442719SSunil Mushran case Opt_hb_global: 13452c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; 1346ccd979bdSMark Fasheh break; 1347ccd979bdSMark Fasheh case Opt_barrier: 1348ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1349ccd979bdSMark Fasheh status = 0; 1350ccd979bdSMark Fasheh goto bail; 1351ccd979bdSMark Fasheh } 1352ccd979bdSMark Fasheh if (option) 1353c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1354ccd979bdSMark Fasheh else 1355c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1356ccd979bdSMark Fasheh break; 1357ccd979bdSMark Fasheh case Opt_intr: 1358c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1359ccd979bdSMark Fasheh break; 1360ccd979bdSMark Fasheh case Opt_nointr: 1361c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1362ccd979bdSMark Fasheh break; 1363ccd979bdSMark Fasheh case Opt_err_panic: 1364c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1365ccd979bdSMark Fasheh break; 1366ccd979bdSMark Fasheh case Opt_err_ro: 1367c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1368ccd979bdSMark Fasheh break; 1369ccd979bdSMark Fasheh case Opt_data_ordered: 1370c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1371ccd979bdSMark Fasheh break; 1372ccd979bdSMark Fasheh case Opt_data_writeback: 1373c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1374ccd979bdSMark Fasheh break; 1375cf1d6c76STiger Yang case Opt_user_xattr: 1376cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1377cf1d6c76STiger Yang break; 1378cf1d6c76STiger Yang case Opt_nouser_xattr: 1379cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1380cf1d6c76STiger Yang break; 13817f1a37e3STiger Yang case Opt_atime_quantum: 13827f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13837f1a37e3STiger Yang status = 0; 13847f1a37e3STiger Yang goto bail; 13857f1a37e3STiger Yang } 13867f1a37e3STiger Yang if (option >= 0) 1387c0123adeSTiger Yang mopt->atime_quantum = option; 13887f1a37e3STiger Yang break; 1389baf4661aSSunil Mushran case Opt_slot: 1390baf4661aSSunil Mushran option = 0; 1391baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1392baf4661aSSunil Mushran status = 0; 1393baf4661aSSunil Mushran goto bail; 1394baf4661aSSunil Mushran } 1395baf4661aSSunil Mushran if (option) 1396c0123adeSTiger Yang mopt->slot = (s16)option; 1397baf4661aSSunil Mushran break; 1398d147b3d6SMark Fasheh case Opt_commit: 1399d147b3d6SMark Fasheh option = 0; 1400d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1401d147b3d6SMark Fasheh status = 0; 1402d147b3d6SMark Fasheh goto bail; 1403d147b3d6SMark Fasheh } 1404d147b3d6SMark Fasheh if (option < 0) 1405d147b3d6SMark Fasheh return 0; 1406d147b3d6SMark Fasheh if (option == 0) 14072b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1408d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1409d147b3d6SMark Fasheh break; 14102fbe8d1eSSunil Mushran case Opt_localalloc: 14112fbe8d1eSSunil Mushran option = 0; 14122fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 14132fbe8d1eSSunil Mushran status = 0; 14142fbe8d1eSSunil Mushran goto bail; 14152fbe8d1eSSunil Mushran } 141673c8a800SMark Fasheh if (option >= 0) 14172fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 14182fbe8d1eSSunil Mushran break; 141953fc622bSMark Fasheh case Opt_localflocks: 142053fc622bSMark Fasheh /* 142153fc622bSMark Fasheh * Changing this during remount could race 142253fc622bSMark Fasheh * flock() requests, or "unbalance" existing 142353fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 142453fc622bSMark Fasheh * dropped in the other). If users care enough 142553fc622bSMark Fasheh * to flip locking modes during remount, we 142653fc622bSMark Fasheh * could add a "local" flag to individual 142753fc622bSMark Fasheh * flock structures for proper tracking of 142853fc622bSMark Fasheh * state. 142953fc622bSMark Fasheh */ 143053fc622bSMark Fasheh if (!is_remount) 143153fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 143253fc622bSMark Fasheh break; 1433b61817e1SJoel Becker case Opt_stack: 1434b61817e1SJoel Becker /* Check both that the option we were passed 1435b61817e1SJoel Becker * is of the right length and that it is a proper 1436b61817e1SJoel Becker * string of the right length. 1437b61817e1SJoel Becker */ 1438b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1439b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1440b61817e1SJoel Becker (strnlen(args[0].from, 1441b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1442b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1443b61817e1SJoel Becker mlog(ML_ERROR, 1444b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1445b61817e1SJoel Becker status = 0; 1446b61817e1SJoel Becker goto bail; 1447b61817e1SJoel Becker } 1448b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1449b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1450b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 145152c303c5SMark Fasheh /* 145252c303c5SMark Fasheh * Open code the memcmp here as we don't have 145352c303c5SMark Fasheh * an osb to pass to 145452c303c5SMark Fasheh * ocfs2_userspace_stack(). 145552c303c5SMark Fasheh */ 145652c303c5SMark Fasheh if (memcmp(mopt->cluster_stack, 145752c303c5SMark Fasheh OCFS2_CLASSIC_CLUSTER_STACK, 145852c303c5SMark Fasheh OCFS2_STACK_LABEL_LEN)) 145952c303c5SMark Fasheh user_stack = 1; 1460b61817e1SJoel Becker break; 146112462f1dSJoel Becker case Opt_inode64: 146212462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 146312462f1dSJoel Becker break; 146419ece546SJan Kara case Opt_usrquota: 146519ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 146619ece546SJan Kara break; 146719ece546SJan Kara case Opt_grpquota: 146819ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 146919ece546SJan Kara break; 14707bdb0d18STristan Ye case Opt_coherency_buffered: 14717bdb0d18STristan Ye mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; 14727bdb0d18STristan Ye break; 14737bdb0d18STristan Ye case Opt_coherency_full: 14747bdb0d18STristan Ye mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; 14757bdb0d18STristan Ye break; 1476a68979b8STiger Yang case Opt_acl: 1477a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14785297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1479a68979b8STiger Yang break; 1480a68979b8STiger Yang case Opt_noacl: 14815297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1482a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1483a68979b8STiger Yang break; 1484d02f00ccSMark Fasheh case Opt_resv_level: 1485d02f00ccSMark Fasheh if (is_remount) 1486d02f00ccSMark Fasheh break; 1487d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1488d02f00ccSMark Fasheh status = 0; 1489d02f00ccSMark Fasheh goto bail; 1490d02f00ccSMark Fasheh } 1491d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1492d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1493d02f00ccSMark Fasheh mopt->resv_level = option; 1494d02f00ccSMark Fasheh break; 149583f92318SMark Fasheh case Opt_dir_resv_level: 149683f92318SMark Fasheh if (is_remount) 149783f92318SMark Fasheh break; 149883f92318SMark Fasheh if (match_int(&args[0], &option)) { 149983f92318SMark Fasheh status = 0; 150083f92318SMark Fasheh goto bail; 150183f92318SMark Fasheh } 150283f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 150383f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 150483f92318SMark Fasheh mopt->dir_resv_level = option; 150583f92318SMark Fasheh break; 1506ccd979bdSMark Fasheh default: 1507ccd979bdSMark Fasheh mlog(ML_ERROR, 1508ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1509ccd979bdSMark Fasheh "or missing value\n", p); 1510ccd979bdSMark Fasheh status = 0; 1511ccd979bdSMark Fasheh goto bail; 1512ccd979bdSMark Fasheh } 1513ccd979bdSMark Fasheh } 1514ccd979bdSMark Fasheh 151552c303c5SMark Fasheh if (user_stack == 0) { 15162c442719SSunil Mushran /* Ensure only one heartbeat mode */ 151752c303c5SMark Fasheh tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | 151852c303c5SMark Fasheh OCFS2_MOUNT_HB_GLOBAL | 15192c442719SSunil Mushran OCFS2_MOUNT_HB_NONE); 15202c442719SSunil Mushran if (hweight32(tmp) != 1) { 15212c442719SSunil Mushran mlog(ML_ERROR, "Invalid heartbeat mount options\n"); 15222c442719SSunil Mushran status = 0; 15232c442719SSunil Mushran goto bail; 15242c442719SSunil Mushran } 152552c303c5SMark Fasheh } 15262c442719SSunil Mushran 1527ccd979bdSMark Fasheh status = 1; 1528ccd979bdSMark Fasheh 1529ccd979bdSMark Fasheh bail: 1530ccd979bdSMark Fasheh return status; 1531ccd979bdSMark Fasheh } 1532ccd979bdSMark Fasheh 153334c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root) 1534d550071cSSunil Mushran { 153534c80b1dSAl Viro struct ocfs2_super *osb = OCFS2_SB(root->d_sb); 1536d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1537ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1538d550071cSSunil Mushran 15392c442719SSunil Mushran if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { 15402c442719SSunil Mushran seq_printf(s, ",_netdev"); 1541d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 15422c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_LOCAL); 1543d550071cSSunil Mushran else 15442c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_GLOBAL); 15452c442719SSunil Mushran } else 15462c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_NONE); 1547d550071cSSunil Mushran 1548d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1549d550071cSSunil Mushran seq_printf(s, ",nointr"); 1550d550071cSSunil Mushran 1551d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1552d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1553d550071cSSunil Mushran else 1554d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1555d550071cSSunil Mushran 1556d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1557d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1558d550071cSSunil Mushran 1559d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1560d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1561d550071cSSunil Mushran else 1562d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1563d550071cSSunil Mushran 1564d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1565d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1566d550071cSSunil Mushran 1567d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1568d550071cSSunil Mushran 1569d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1570d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1571d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1572d147b3d6SMark Fasheh 1573ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15746b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1575ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15762fbe8d1eSSunil Mushran 157753fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 157853fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 157953fc622bSMark Fasheh 1580b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1581b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1582b61817e1SJoel Becker osb->osb_cluster_stack); 158319ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 158419ece546SJan Kara seq_printf(s, ",usrquota"); 158519ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 158619ece546SJan Kara seq_printf(s, ",grpquota"); 1587b61817e1SJoel Becker 15887bdb0d18STristan Ye if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) 15897bdb0d18STristan Ye seq_printf(s, ",coherency=buffered"); 15907bdb0d18STristan Ye else 15917bdb0d18STristan Ye seq_printf(s, ",coherency=full"); 15927bdb0d18STristan Ye 1593b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1594b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1595b0f73cfcSSunil Mushran else 1596b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1597b0f73cfcSSunil Mushran 159812462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 159912462f1dSJoel Becker seq_printf(s, ",inode64"); 160012462f1dSJoel Becker 1601a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1602a68979b8STiger Yang seq_printf(s, ",acl"); 1603a68979b8STiger Yang else 1604a68979b8STiger Yang seq_printf(s, ",noacl"); 1605a68979b8STiger Yang 1606d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1607d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1608d02f00ccSMark Fasheh 160983f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 161083f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 161183f92318SMark Fasheh 1612d550071cSSunil Mushran return 0; 1613d550071cSSunil Mushran } 1614d550071cSSunil Mushran 1615a11f7e63SMark Fasheh wait_queue_head_t ocfs2__ioend_wq[OCFS2_IOEND_WQ_HASH_SZ]; 1616a11f7e63SMark Fasheh 1617ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1618ccd979bdSMark Fasheh { 1619a11f7e63SMark Fasheh int status, i; 1620ccd979bdSMark Fasheh 1621ccd979bdSMark Fasheh ocfs2_print_version(); 1622ccd979bdSMark Fasheh 1623a11f7e63SMark Fasheh for (i = 0; i < OCFS2_IOEND_WQ_HASH_SZ; i++) 1624a11f7e63SMark Fasheh init_waitqueue_head(&ocfs2__ioend_wq[i]); 1625a11f7e63SMark Fasheh 1626ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1627ccd979bdSMark Fasheh if (status < 0) { 1628ccd979bdSMark Fasheh mlog_errno(status); 1629ccd979bdSMark Fasheh goto leave; 1630ccd979bdSMark Fasheh } 1631ccd979bdSMark Fasheh 1632ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1633ccd979bdSMark Fasheh if (status < 0) { 1634ccd979bdSMark Fasheh mlog_errno(status); 1635ccd979bdSMark Fasheh goto leave; 1636ccd979bdSMark Fasheh } 1637ccd979bdSMark Fasheh 1638ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1639ccd979bdSMark Fasheh if (!ocfs2_wq) { 1640ccd979bdSMark Fasheh status = -ENOMEM; 1641ccd979bdSMark Fasheh goto leave; 1642ccd979bdSMark Fasheh } 1643ccd979bdSMark Fasheh 1644ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1645ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1646ccd979bdSMark Fasheh status = -EFAULT; 1647ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1648ccd979bdSMark Fasheh } 1649ccd979bdSMark Fasheh 165063e0c48aSJoel Becker ocfs2_set_locking_protocol(); 165163e0c48aSJoel Becker 16529e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1653ccd979bdSMark Fasheh leave: 1654ccd979bdSMark Fasheh if (status < 0) { 1655ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1656ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1657c1e8d35eSTao Ma mlog_errno(status); 1658ccd979bdSMark Fasheh } 1659ccd979bdSMark Fasheh 1660ccd979bdSMark Fasheh if (status >= 0) { 1661ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1662ccd979bdSMark Fasheh } else 1663ccd979bdSMark Fasheh return -1; 1664ccd979bdSMark Fasheh } 1665ccd979bdSMark Fasheh 1666ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1667ccd979bdSMark Fasheh { 1668ccd979bdSMark Fasheh if (ocfs2_wq) { 1669ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1670ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1671ccd979bdSMark Fasheh } 1672ccd979bdSMark Fasheh 16739e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 16749e33d69fSJan Kara 1675ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1676ccd979bdSMark Fasheh 1677ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1678ccd979bdSMark Fasheh 1679ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1680ccd979bdSMark Fasheh 1681ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1682ccd979bdSMark Fasheh } 1683ccd979bdSMark Fasheh 1684ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1685ccd979bdSMark Fasheh { 168632a42d39STao Ma trace_ocfs2_put_super(sb); 1687ccd979bdSMark Fasheh 1688ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1689ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1690ccd979bdSMark Fasheh } 1691ccd979bdSMark Fasheh 1692726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1693ccd979bdSMark Fasheh { 1694ccd979bdSMark Fasheh struct ocfs2_super *osb; 1695ccd979bdSMark Fasheh u32 numbits, freebits; 1696ccd979bdSMark Fasheh int status; 1697ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1698ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1699ccd979bdSMark Fasheh struct inode *inode = NULL; 1700ccd979bdSMark Fasheh 170132a42d39STao Ma trace_ocfs2_statfs(dentry->d_sb, buf); 1702ccd979bdSMark Fasheh 1703726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1704ccd979bdSMark Fasheh 1705ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1706ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1707ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1708ccd979bdSMark Fasheh if (!inode) { 1709ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1710ccd979bdSMark Fasheh status = -EIO; 1711ccd979bdSMark Fasheh goto bail; 1712ccd979bdSMark Fasheh } 1713ccd979bdSMark Fasheh 1714e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1715ccd979bdSMark Fasheh if (status < 0) { 1716ccd979bdSMark Fasheh mlog_errno(status); 1717ccd979bdSMark Fasheh goto bail; 1718ccd979bdSMark Fasheh } 1719ccd979bdSMark Fasheh 1720ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1721ccd979bdSMark Fasheh 1722ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1723ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1724ccd979bdSMark Fasheh 1725ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1726726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1727ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1728ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1729ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1730ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1731ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1732ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1733ccd979bdSMark Fasheh buf->f_files = numbits; 1734ccd979bdSMark Fasheh buf->f_ffree = freebits; 1735837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1736837711f8SColy Li & 0xFFFFFFFFUL; 1737837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1738837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1739ccd979bdSMark Fasheh 1740ccd979bdSMark Fasheh brelse(bh); 1741ccd979bdSMark Fasheh 1742e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1743ccd979bdSMark Fasheh status = 0; 1744ccd979bdSMark Fasheh bail: 1745ccd979bdSMark Fasheh if (inode) 1746ccd979bdSMark Fasheh iput(inode); 1747ccd979bdSMark Fasheh 1748c1e8d35eSTao Ma if (status) 1749c1e8d35eSTao Ma mlog_errno(status); 1750ccd979bdSMark Fasheh 1751ccd979bdSMark Fasheh return status; 1752ccd979bdSMark Fasheh } 1753ccd979bdSMark Fasheh 175451cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1755ccd979bdSMark Fasheh { 1756ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1757ccd979bdSMark Fasheh 1758ccd979bdSMark Fasheh oi->ip_flags = 0; 1759ccd979bdSMark Fasheh oi->ip_open_count = 0; 1760ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 176183418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1762ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1763ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1764a11f7e63SMark Fasheh atomic_set(&oi->ip_unaligned_aio, 0); 1765ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1766cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1767251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1768ccd979bdSMark Fasheh 1769ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1770ccd979bdSMark Fasheh oi->ip_clusters = 0; 1771ccd979bdSMark Fasheh 17724fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 17734fe370afSMark Fasheh 1774ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1775e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 177650008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1777ccd979bdSMark Fasheh 17788cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 17796e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1780ccd979bdSMark Fasheh 1781ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1782ccd979bdSMark Fasheh } 1783ccd979bdSMark Fasheh 1784ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1785ccd979bdSMark Fasheh { 1786ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1787ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1788fffb60f9SPaul Jackson 0, 1789fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1790fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 179120c2df83SPaul Mundt ocfs2_inode_init_once); 17929e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17939e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17949e33d69fSJan Kara 0, 17959e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17969e33d69fSJan Kara SLAB_MEM_SPREAD), 17979e33d69fSJan Kara NULL); 17989e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17999e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 18009e33d69fSJan Kara 0, 18019e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 18029e33d69fSJan Kara NULL); 18039e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 18049e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 18059e33d69fSJan Kara if (ocfs2_inode_cachep) 18069e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 18079e33d69fSJan Kara if (ocfs2_dquot_cachep) 18089e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 18099e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 18109e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1811ccd979bdSMark Fasheh return -ENOMEM; 18129e33d69fSJan Kara } 1813ccd979bdSMark Fasheh 1814ccd979bdSMark Fasheh return 0; 1815ccd979bdSMark Fasheh } 1816ccd979bdSMark Fasheh 1817ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1818ccd979bdSMark Fasheh { 1819ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1820ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1821ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 18229e33d69fSJan Kara 18239e33d69fSJan Kara if (ocfs2_dquot_cachep) 18249e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 18259e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 18269e33d69fSJan Kara 18279e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 18289e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 18299e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1830ccd979bdSMark Fasheh } 1831ccd979bdSMark Fasheh 1832ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1833ccd979bdSMark Fasheh struct buffer_head **bh, 1834ccd979bdSMark Fasheh int block, 1835ccd979bdSMark Fasheh int sect_size) 1836ccd979bdSMark Fasheh { 1837ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1838ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1839ccd979bdSMark Fasheh return -EIO; 1840ccd979bdSMark Fasheh } 1841ccd979bdSMark Fasheh 1842ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1843ccd979bdSMark Fasheh if (!*bh) { 1844ccd979bdSMark Fasheh mlog_errno(-EIO); 1845ccd979bdSMark Fasheh return -EIO; 1846ccd979bdSMark Fasheh } 1847ccd979bdSMark Fasheh lock_buffer(*bh); 1848ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1849ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1850ccd979bdSMark Fasheh unlock_buffer(*bh); 1851ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1852ccd979bdSMark Fasheh wait_on_buffer(*bh); 185328d57d43Swengang wang if (!buffer_uptodate(*bh)) { 185428d57d43Swengang wang mlog_errno(-EIO); 185528d57d43Swengang wang brelse(*bh); 185628d57d43Swengang wang *bh = NULL; 185728d57d43Swengang wang return -EIO; 185828d57d43Swengang wang } 185928d57d43Swengang wang 1860ccd979bdSMark Fasheh return 0; 1861ccd979bdSMark Fasheh } 1862ccd979bdSMark Fasheh 1863ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1864ccd979bdSMark Fasheh { 1865ccd979bdSMark Fasheh int status = 0; 1866ccd979bdSMark Fasheh int unlock_super = 0; 1867ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1868ccd979bdSMark Fasheh 1869ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1870ccd979bdSMark Fasheh goto leave; 1871ccd979bdSMark Fasheh 1872ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1873ccd979bdSMark Fasheh if (status < 0) { 1874ccd979bdSMark Fasheh mlog_errno(status); 1875ccd979bdSMark Fasheh goto leave; 1876ccd979bdSMark Fasheh } 1877ccd979bdSMark Fasheh 1878ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1879ccd979bdSMark Fasheh if (status < 0) { 1880ccd979bdSMark Fasheh mlog_errno(status); 1881ccd979bdSMark Fasheh goto leave; 1882ccd979bdSMark Fasheh } 1883ccd979bdSMark Fasheh unlock_super = 1; 1884ccd979bdSMark Fasheh 1885ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1886ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1887ccd979bdSMark Fasheh if (status < 0) { 1888ccd979bdSMark Fasheh mlog_errno(status); 1889ccd979bdSMark Fasheh goto leave; 1890ccd979bdSMark Fasheh } 1891ccd979bdSMark Fasheh 1892ccd979bdSMark Fasheh /* load all node-local system inodes */ 1893ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1894ccd979bdSMark Fasheh if (status < 0) { 1895ccd979bdSMark Fasheh mlog_errno(status); 1896ccd979bdSMark Fasheh goto leave; 1897ccd979bdSMark Fasheh } 1898ccd979bdSMark Fasheh 1899ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1900ccd979bdSMark Fasheh if (status < 0) { 1901ccd979bdSMark Fasheh mlog_errno(status); 1902ccd979bdSMark Fasheh goto leave; 1903ccd979bdSMark Fasheh } 1904ccd979bdSMark Fasheh 1905ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 190606c59bb8STao Ma if (status < 0) 1907ccd979bdSMark Fasheh mlog_errno(status); 1908c271c5c2SSunil Mushran 1909ccd979bdSMark Fasheh leave: 1910ccd979bdSMark Fasheh if (unlock_super) 1911ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1912ccd979bdSMark Fasheh 1913ccd979bdSMark Fasheh return status; 1914ccd979bdSMark Fasheh } 1915ccd979bdSMark Fasheh 1916ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1917ccd979bdSMark Fasheh { 1918286eaa95SJoel Becker int tmp, hangup_needed = 0; 1919ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1920c271c5c2SSunil Mushran char nodestr[8]; 1921ccd979bdSMark Fasheh 192232a42d39STao Ma trace_ocfs2_dismount_volume(sb); 1923ccd979bdSMark Fasheh 1924ccd979bdSMark Fasheh BUG_ON(!sb); 1925ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1926ccd979bdSMark Fasheh BUG_ON(!osb); 1927ccd979bdSMark Fasheh 192850397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 192950397507SSunil Mushran 1930f7b1aa69SJan Kara /* 1931f7b1aa69SJan Kara * Flush inode dropping work queue so that deletes are 1932f7b1aa69SJan Kara * performed while the filesystem is still working 1933f7b1aa69SJan Kara */ 1934f7b1aa69SJan Kara ocfs2_drop_all_dl_inodes(osb); 1935f7b1aa69SJan Kara 1936692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1937692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1938692684e1SSunil Mushran 193919ece546SJan Kara ocfs2_disable_quotas(osb); 194019ece546SJan Kara 1941ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1942ccd979bdSMark Fasheh 1943ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1944ccd979bdSMark Fasheh 1945553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1946553abd04SJoel Becker ocfs2_recovery_exit(osb); 1947ccd979bdSMark Fasheh 1948ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1949ccd979bdSMark Fasheh 1950ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1951ccd979bdSMark Fasheh 1952374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1953374a263eSTao Ma 19544670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 19554670c46dSJoel Becker * all the steps which depended on that to complete. */ 19564670c46dSJoel Becker if (osb->cconn) { 1957ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1958ccd979bdSMark Fasheh if (tmp < 0) { 1959ccd979bdSMark Fasheh mlog_errno(tmp); 1960ccd979bdSMark Fasheh return; 1961ccd979bdSMark Fasheh } 196219b613d4SMark Fasheh } 1963ccd979bdSMark Fasheh 1964ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1965ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1966ccd979bdSMark Fasheh 19674670c46dSJoel Becker if (osb->cconn) 1968ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1969ccd979bdSMark Fasheh 1970ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1971ccd979bdSMark Fasheh 19726953b4c0SJoel Becker /* 19736953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19746953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19756953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19766953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19776953b4c0SJoel Becker */ 197803efed8aSTiger Yang if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str && 197903efed8aSTiger Yang !ocfs2_is_hard_readonly(osb)) 1980286eaa95SJoel Becker hangup_needed = 1; 1981286eaa95SJoel Becker 1982286eaa95SJoel Becker if (osb->cconn) 1983286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1984286eaa95SJoel Becker 198573be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1986286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1987286eaa95SJoel Becker 1988286eaa95SJoel Becker if (hangup_needed) 19896953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1990ccd979bdSMark Fasheh 1991ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1992ccd979bdSMark Fasheh 1993c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1994c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1995c271c5c2SSunil Mushran else 199619fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1997c271c5c2SSunil Mushran 1998c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1999c271c5c2SSunil Mushran osb->dev_str, nodestr); 2000ccd979bdSMark Fasheh 2001ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 2002ccd979bdSMark Fasheh kfree(osb); 2003ccd979bdSMark Fasheh sb->s_dev = 0; 2004ccd979bdSMark Fasheh sb->s_fs_info = NULL; 2005ccd979bdSMark Fasheh } 2006ccd979bdSMark Fasheh 2007ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 2008ccd979bdSMark Fasheh unsigned uuid_bytes) 2009ccd979bdSMark Fasheh { 2010ccd979bdSMark Fasheh int i, ret; 2011ccd979bdSMark Fasheh char *ptr; 2012ccd979bdSMark Fasheh 2013ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 2014ccd979bdSMark Fasheh 2015cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 2016ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 2017ccd979bdSMark Fasheh return -ENOMEM; 2018ccd979bdSMark Fasheh 2019ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 2020ccd979bdSMark Fasheh /* print with null */ 2021ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 2022ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 2023ccd979bdSMark Fasheh return -EINVAL; 2024ccd979bdSMark Fasheh /* then only advance past the last char */ 2025ccd979bdSMark Fasheh ptr += 2; 2026ccd979bdSMark Fasheh } 2027ccd979bdSMark Fasheh 2028ccd979bdSMark Fasheh return 0; 2029ccd979bdSMark Fasheh } 2030ccd979bdSMark Fasheh 20313bdb8efdSPatrick J. LoPresti /* Make sure entire volume is addressable by our journal. Requires 20323bdb8efdSPatrick J. LoPresti osb_clusters_at_boot to be valid and for the journal to have been 20333bdb8efdSPatrick J. LoPresti initialized by ocfs2_journal_init(). */ 20343bdb8efdSPatrick J. LoPresti static int ocfs2_journal_addressable(struct ocfs2_super *osb) 20353bdb8efdSPatrick J. LoPresti { 20363bdb8efdSPatrick J. LoPresti int status = 0; 20373bdb8efdSPatrick J. LoPresti u64 max_block = 20383bdb8efdSPatrick J. LoPresti ocfs2_clusters_to_blocks(osb->sb, 20393bdb8efdSPatrick J. LoPresti osb->osb_clusters_at_boot) - 1; 20403bdb8efdSPatrick J. LoPresti 20413bdb8efdSPatrick J. LoPresti /* 32-bit block number is always OK. */ 20423bdb8efdSPatrick J. LoPresti if (max_block <= (u32)~0ULL) 20433bdb8efdSPatrick J. LoPresti goto out; 20443bdb8efdSPatrick J. LoPresti 20453bdb8efdSPatrick J. LoPresti /* Volume is "huge", so see if our journal is new enough to 20463bdb8efdSPatrick J. LoPresti support it. */ 20473bdb8efdSPatrick J. LoPresti if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, 20483bdb8efdSPatrick J. LoPresti OCFS2_FEATURE_COMPAT_JBD2_SB) && 20493bdb8efdSPatrick J. LoPresti jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, 20503bdb8efdSPatrick J. LoPresti JBD2_FEATURE_INCOMPAT_64BIT))) { 20513bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "The journal cannot address the entire volume. " 20523bdb8efdSPatrick J. LoPresti "Enable the 'block64' journal option with tunefs.ocfs2"); 20533bdb8efdSPatrick J. LoPresti status = -EFBIG; 20543bdb8efdSPatrick J. LoPresti goto out; 20553bdb8efdSPatrick J. LoPresti } 20563bdb8efdSPatrick J. LoPresti 20573bdb8efdSPatrick J. LoPresti out: 20583bdb8efdSPatrick J. LoPresti return status; 20593bdb8efdSPatrick J. LoPresti } 20603bdb8efdSPatrick J. LoPresti 2061ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 2062ccd979bdSMark Fasheh struct buffer_head *bh, 206373be192bSJoel Becker int sector_size, 206473be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2065ccd979bdSMark Fasheh { 2066bddb8eb3SDenis Cheng int status; 20675a254031SMark Fasheh int i, cbits, bbits; 20685a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2069ccd979bdSMark Fasheh struct inode *inode = NULL; 2070ccd979bdSMark Fasheh struct ocfs2_journal *journal; 2071ccd979bdSMark Fasheh __le32 uuid_net_key; 2072ccd979bdSMark Fasheh struct ocfs2_super *osb; 20733bdb8efdSPatrick J. LoPresti u64 total_blocks; 2074ccd979bdSMark Fasheh 2075cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2076ccd979bdSMark Fasheh if (!osb) { 2077ccd979bdSMark Fasheh status = -ENOMEM; 2078ccd979bdSMark Fasheh mlog_errno(status); 2079ccd979bdSMark Fasheh goto bail; 2080ccd979bdSMark Fasheh } 2081ccd979bdSMark Fasheh 2082ccd979bdSMark Fasheh sb->s_fs_info = osb; 2083ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2084ba87167cSAl Viro sb->s_d_op = &ocfs2_dentry_ops; 2085ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 208619ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 208719ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 2088cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2089e0dceaf0SMark Fasheh sb->s_time_gran = 1; 2090ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 2091ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20925a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20935a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20945a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 2095ccd979bdSMark Fasheh 20969b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20979b7895efSMark Fasheh 20989b7895efSMark Fasheh for (i = 0; i < 3; i++) 20999b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 21009b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 21019b7895efSMark Fasheh 2102ccd979bdSMark Fasheh osb->sb = sb; 2103ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 2104ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2105ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2106ccd979bdSMark Fasheh 210734d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 210834d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 210934d024f8SMark Fasheh osb->dc_work_sequence = 0; 211034d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2111ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2112ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2113ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2114c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2115b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2116ccd979bdSMark Fasheh 2117ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2118ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2119ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2120ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2121ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2122ccd979bdSMark Fasheh 212373be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 212473be192bSJoel Becker osb->osb_ecc_stats = *stats; 212573be192bSJoel Becker 2126ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2127ccd979bdSMark Fasheh 2128ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2129ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2130ccd979bdSMark Fasheh 213175d9bbc7SGoldwyn Rodrigues osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 213275d9bbc7SGoldwyn Rodrigues if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 213375d9bbc7SGoldwyn Rodrigues mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 213475d9bbc7SGoldwyn Rodrigues osb->max_slots); 213575d9bbc7SGoldwyn Rodrigues status = -EINVAL; 213675d9bbc7SGoldwyn Rodrigues goto bail; 213775d9bbc7SGoldwyn Rodrigues } 213875d9bbc7SGoldwyn Rodrigues 21398b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 21408b712cd5SJeff Mahoney 2141553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2142553abd04SJoel Becker if (status) { 2143553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2144553abd04SJoel Becker mlog_errno(status); 2145553abd04SJoel Becker goto bail; 2146553abd04SJoel Becker } 2147ccd979bdSMark Fasheh 2148ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2149ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 2150ccd979bdSMark Fasheh 21517f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 21527f1a37e3STiger Yang 2153ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2154ccd979bdSMark Fasheh 21558154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 21568154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2157fdd77704STiger Yang 2158ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2159ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 21609c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2161ccd979bdSMark Fasheh 2162ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2163ccd979bdSMark Fasheh 2164d02f00ccSMark Fasheh status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2165d02f00ccSMark Fasheh if (status) { 2166d02f00ccSMark Fasheh mlog_errno(status); 2167d02f00ccSMark Fasheh goto bail; 2168d02f00ccSMark Fasheh } 2169d02f00ccSMark Fasheh 2170ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2171ccd979bdSMark Fasheh if (!osb->vol_label) { 2172ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2173ccd979bdSMark Fasheh status = -ENOMEM; 2174ccd979bdSMark Fasheh goto bail; 2175ccd979bdSMark Fasheh } 2176ccd979bdSMark Fasheh 2177539d8264SSunil Mushran osb->slot_recovery_generations = 2178539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2179539d8264SSunil Mushran GFP_KERNEL); 2180539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2181539d8264SSunil Mushran status = -ENOMEM; 2182539d8264SSunil Mushran mlog_errno(status); 2183539d8264SSunil Mushran goto bail; 2184539d8264SSunil Mushran } 2185539d8264SSunil Mushran 2186b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2187b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2188b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2189b4df6ed8SMark Fasheh GFP_KERNEL); 2190b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2191b4df6ed8SMark Fasheh status = -ENOMEM; 2192b4df6ed8SMark Fasheh mlog_errno(status); 2193b4df6ed8SMark Fasheh goto bail; 2194b4df6ed8SMark Fasheh } 2195b4df6ed8SMark Fasheh 2196374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2197374a263eSTao Ma 2198ccd979bdSMark Fasheh osb->s_feature_compat = 2199ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2200ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2201ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2202ccd979bdSMark Fasheh osb->s_feature_incompat = 2203ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2204ccd979bdSMark Fasheh 2205ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2206ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2207ccd979bdSMark Fasheh "optional features (%x).\n", i); 2208ccd979bdSMark Fasheh status = -EINVAL; 2209ccd979bdSMark Fasheh goto bail; 2210ccd979bdSMark Fasheh } 2211ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2212ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2213ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2214ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2215ccd979bdSMark Fasheh status = -EINVAL; 2216ccd979bdSMark Fasheh goto bail; 2217ccd979bdSMark Fasheh } 2218ccd979bdSMark Fasheh 221998f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 222098f486f2SSunil Mushran osb->osb_stackflags = 222198f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2222b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2223b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2224b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2225b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2226b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2227b61817e1SJoel Becker mlog(ML_ERROR, 2228b61817e1SJoel Becker "couldn't mount because of an invalid " 2229b61817e1SJoel Becker "cluster stack label (%s) \n", 2230b61817e1SJoel Becker osb->osb_cluster_stack); 2231b61817e1SJoel Becker status = -EINVAL; 2232b61817e1SJoel Becker goto bail; 2233b61817e1SJoel Becker } 2234b61817e1SJoel Becker } else { 2235b61817e1SJoel Becker /* The empty string is identical with classic tools that 2236b61817e1SJoel Becker * don't know about s_cluster_info. */ 2237b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2238b61817e1SJoel Becker } 2239b61817e1SJoel Becker 2240ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2241ccd979bdSMark Fasheh 2242ccd979bdSMark Fasheh /* FIXME 2243ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2244ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2245ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2246ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2247ccd979bdSMark Fasheh * be my guest. 2248ccd979bdSMark Fasheh */ 2249ccd979bdSMark Fasheh /* initialize our journal structure */ 2250ccd979bdSMark Fasheh 2251cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2252ccd979bdSMark Fasheh if (!journal) { 2253ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2254ccd979bdSMark Fasheh status = -ENOMEM; 2255ccd979bdSMark Fasheh goto bail; 2256ccd979bdSMark Fasheh } 2257ccd979bdSMark Fasheh osb->journal = journal; 2258ccd979bdSMark Fasheh journal->j_osb = osb; 2259ccd979bdSMark Fasheh 2260ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2261ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2262ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2263ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2264ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2265ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2266c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2267ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2268ccd979bdSMark Fasheh 2269ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2270ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2271ea455f8aSJan Kara 2272ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2273ccd979bdSMark Fasheh osb->s_clustersize_bits = 2274ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2275ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2276ccd979bdSMark Fasheh 2277ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2278ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2279ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2280ccd979bdSMark Fasheh osb->s_clustersize); 2281ccd979bdSMark Fasheh status = -EINVAL; 2282ccd979bdSMark Fasheh goto bail; 2283ccd979bdSMark Fasheh } 2284ccd979bdSMark Fasheh 22853bdb8efdSPatrick J. LoPresti total_blocks = ocfs2_clusters_to_blocks(osb->sb, 22863bdb8efdSPatrick J. LoPresti le32_to_cpu(di->i_clusters)); 22873bdb8efdSPatrick J. LoPresti 22883bdb8efdSPatrick J. LoPresti status = generic_check_addressable(osb->sb->s_blocksize_bits, 22893bdb8efdSPatrick J. LoPresti total_blocks); 22903bdb8efdSPatrick J. LoPresti if (status) { 22913bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "Volume too large " 22923bdb8efdSPatrick J. LoPresti "to mount safely on this system"); 22933bdb8efdSPatrick J. LoPresti status = -EFBIG; 2294ccd979bdSMark Fasheh goto bail; 2295ccd979bdSMark Fasheh } 2296ccd979bdSMark Fasheh 2297ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2298ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2299ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2300ccd979bdSMark Fasheh status = -ENOMEM; 2301ccd979bdSMark Fasheh goto bail; 2302ccd979bdSMark Fasheh } 2303ccd979bdSMark Fasheh 230478427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2305ccd979bdSMark Fasheh 2306ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2307ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2308ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2309ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2310ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2311ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2312ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2313cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 231432a42d39STao Ma trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, 2315b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 231632a42d39STao Ma (unsigned long long)osb->system_dir_blkno, 231732a42d39STao Ma osb->s_clustersize_bits); 2318ccd979bdSMark Fasheh 2319ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2320ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2321ccd979bdSMark Fasheh status = -ENOMEM; 2322ccd979bdSMark Fasheh mlog_errno(status); 2323ccd979bdSMark Fasheh goto bail; 2324ccd979bdSMark Fasheh } 2325ccd979bdSMark Fasheh 2326ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2327ccd979bdSMark Fasheh 2328ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2329ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2330ccd979bdSMark Fasheh if (status < 0) { 2331ccd979bdSMark Fasheh mlog_errno(status); 2332ccd979bdSMark Fasheh goto bail; 2333ccd979bdSMark Fasheh } 2334ccd979bdSMark Fasheh 2335ccd979bdSMark Fasheh /* 2336ccd979bdSMark Fasheh * global bitmap 2337ccd979bdSMark Fasheh */ 2338ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2339ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2340ccd979bdSMark Fasheh if (!inode) { 2341ccd979bdSMark Fasheh status = -EINVAL; 2342ccd979bdSMark Fasheh mlog_errno(status); 2343ccd979bdSMark Fasheh goto bail; 2344ccd979bdSMark Fasheh } 2345ccd979bdSMark Fasheh 2346ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 23476b82021bSMark Fasheh osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; 2348ccd979bdSMark Fasheh iput(inode); 2349ccd979bdSMark Fasheh 23508571882cSTao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, 23518571882cSTao Ma osb->s_feature_incompat) * 8; 2352ccd979bdSMark Fasheh 2353ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2354ccd979bdSMark Fasheh if (status < 0) { 2355ccd979bdSMark Fasheh mlog_errno(status); 2356ccd979bdSMark Fasheh goto bail; 2357ccd979bdSMark Fasheh } 2358e41d33afSDan Magenheimer cleancache_init_shared_fs((char *)&di->id2.i_super.s_uuid, sb); 2359ccd979bdSMark Fasheh 2360ccd979bdSMark Fasheh bail: 2361ccd979bdSMark Fasheh return status; 2362ccd979bdSMark Fasheh } 2363ccd979bdSMark Fasheh 2364ccd979bdSMark Fasheh /* 2365ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2366ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2367ccd979bdSMark Fasheh * 0 on success 2368ccd979bdSMark Fasheh */ 2369ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2370ccd979bdSMark Fasheh struct buffer_head *bh, 237173be192bSJoel Becker u32 blksz, 237273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2373ccd979bdSMark Fasheh { 2374ccd979bdSMark Fasheh int status = -EAGAIN; 2375ccd979bdSMark Fasheh 2376ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2377ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2378d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2379d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2380d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2381d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2382d030cc97SJoel Becker bh->b_size, 238373be192bSJoel Becker &di->i_check, 238473be192bSJoel Becker stats); 2385d030cc97SJoel Becker if (status) 2386d030cc97SJoel Becker goto out; 2387d030cc97SJoel Becker } 2388ccd979bdSMark Fasheh status = -EINVAL; 2389ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2390ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2391ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2392ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2393ccd979bdSMark Fasheh blksz); 2394ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2395ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2396ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2397ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2398ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2399ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2400ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2401ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2402ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2403ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2404ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2405ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2406b0697053SMark Fasheh "found %llu, should be %llu\n", 24071ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2408b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2409ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2410ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2411ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2412ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2413ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2414ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2415ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2416ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2417ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2418ccd979bdSMark Fasheh mlog(ML_ERROR, 2419ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2420ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2421ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2422ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2423ccd979bdSMark Fasheh } else { 2424ccd979bdSMark Fasheh /* found it! */ 2425ccd979bdSMark Fasheh status = 0; 2426ccd979bdSMark Fasheh } 2427ccd979bdSMark Fasheh } 2428ccd979bdSMark Fasheh 2429d030cc97SJoel Becker out: 2430c1e8d35eSTao Ma if (status && status != -EAGAIN) 2431c1e8d35eSTao Ma mlog_errno(status); 2432ccd979bdSMark Fasheh return status; 2433ccd979bdSMark Fasheh } 2434ccd979bdSMark Fasheh 2435ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2436ccd979bdSMark Fasheh { 2437bddb8eb3SDenis Cheng int status; 2438ccd979bdSMark Fasheh int dirty; 2439c271c5c2SSunil Mushran int local; 2440ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2441ccd979bdSMark Fasheh * recover 2442ccd979bdSMark Fasheh * ourselves. */ 2443ccd979bdSMark Fasheh 2444ccd979bdSMark Fasheh /* Init our journal object. */ 2445ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2446ccd979bdSMark Fasheh if (status < 0) { 2447ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2448ccd979bdSMark Fasheh goto finally; 2449ccd979bdSMark Fasheh } 2450ccd979bdSMark Fasheh 24513bdb8efdSPatrick J. LoPresti /* Now that journal has been initialized, check to make sure 24523bdb8efdSPatrick J. LoPresti entire volume is addressable. */ 24533bdb8efdSPatrick J. LoPresti status = ocfs2_journal_addressable(osb); 24543bdb8efdSPatrick J. LoPresti if (status) 24553bdb8efdSPatrick J. LoPresti goto finally; 24563bdb8efdSPatrick J. LoPresti 2457ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2458ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2459ccd979bdSMark Fasheh * dirty work for us :) */ 2460ccd979bdSMark Fasheh if (!dirty) { 2461ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2462ccd979bdSMark Fasheh if (status < 0) { 2463ccd979bdSMark Fasheh mlog_errno(status); 2464ccd979bdSMark Fasheh goto finally; 2465ccd979bdSMark Fasheh } 2466ccd979bdSMark Fasheh } else { 2467619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: File system on device (%s) was not " 2468619c200dSSunil Mushran "unmounted cleanly, recovering it.\n", osb->dev_str); 2469ccd979bdSMark Fasheh } 2470ccd979bdSMark Fasheh 2471c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2472c271c5c2SSunil Mushran 2473ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2474539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 247501af4820SWengang Wang if (status < 0) { 247601af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 247701af4820SWengang Wang goto finally; 247801af4820SWengang Wang } 2479ccd979bdSMark Fasheh 2480ccd979bdSMark Fasheh if (dirty) { 2481ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2482ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2483ccd979bdSMark Fasheh osb->slot_num, 2484ccd979bdSMark Fasheh &local_alloc); 2485ccd979bdSMark Fasheh if (status < 0) { 2486ccd979bdSMark Fasheh mlog_errno(status); 2487ccd979bdSMark Fasheh goto finally; 2488ccd979bdSMark Fasheh } 2489ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2490ccd979bdSMark Fasheh * ourselves as mounted. */ 2491ccd979bdSMark Fasheh } 2492ccd979bdSMark Fasheh 2493ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2494ccd979bdSMark Fasheh if (status < 0) { 2495ccd979bdSMark Fasheh mlog_errno(status); 2496ccd979bdSMark Fasheh goto finally; 2497ccd979bdSMark Fasheh } 2498ccd979bdSMark Fasheh 2499ccd979bdSMark Fasheh if (dirty) { 2500ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2501ccd979bdSMark Fasheh * rest of the volume. */ 2502ccd979bdSMark Fasheh osb->dirty = 1; 2503ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2504ccd979bdSMark Fasheh local_alloc = NULL; 2505ccd979bdSMark Fasheh } 2506ccd979bdSMark Fasheh 2507ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2508ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2509ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2510ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 25119140db04SSrinivas Eeda if (status < 0) { 25129140db04SSrinivas Eeda mlog_errno(status); 25139140db04SSrinivas Eeda goto finally; 25149140db04SSrinivas Eeda } 25159140db04SSrinivas Eeda 25169140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2517ccd979bdSMark Fasheh if (status < 0) 2518ccd979bdSMark Fasheh mlog_errno(status); 2519ccd979bdSMark Fasheh 2520ccd979bdSMark Fasheh finally: 2521ccd979bdSMark Fasheh if (local_alloc) 2522ccd979bdSMark Fasheh kfree(local_alloc); 2523ccd979bdSMark Fasheh 2524c1e8d35eSTao Ma if (status) 2525c1e8d35eSTao Ma mlog_errno(status); 2526ccd979bdSMark Fasheh return status; 2527ccd979bdSMark Fasheh } 2528ccd979bdSMark Fasheh 2529ccd979bdSMark Fasheh /* 2530ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2531ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2532ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2533ccd979bdSMark Fasheh * initialized resources and fileobject. 2534ccd979bdSMark Fasheh */ 2535ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2536ccd979bdSMark Fasheh { 2537ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2538ccd979bdSMark Fasheh 25398e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2540ccd979bdSMark Fasheh 2541b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2542539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2543ccd979bdSMark Fasheh /* FIXME 2544ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2545421f91d2SUwe Kleine-König * allocate osb->journal at the start of ocfs2_initialize_osb(), 2546ccd979bdSMark Fasheh * we free it here. 2547ccd979bdSMark Fasheh */ 2548ccd979bdSMark Fasheh kfree(osb->journal); 2549ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2550ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2551ccd979bdSMark Fasheh kfree(osb->uuid_str); 2552ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2553ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2554ccd979bdSMark Fasheh } 2555ccd979bdSMark Fasheh 2556ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2557ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2558ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2559ccd979bdSMark Fasheh { 2560ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2561ccd979bdSMark Fasheh 2562ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2563ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2564ccd979bdSMark Fasheh sb->s_id); 2565ccd979bdSMark Fasheh 2566ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2567ccd979bdSMark Fasheh 2568ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2569ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2570ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2571ccd979bdSMark Fasheh return; 2572ccd979bdSMark Fasheh 2573ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2574ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2575ccd979bdSMark Fasheh "system is unmounted.\n"); 2576ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2577ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2578ccd979bdSMark Fasheh } 2579ccd979bdSMark Fasheh 2580ccd979bdSMark Fasheh static char error_buf[1024]; 2581ccd979bdSMark Fasheh 2582ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2583ccd979bdSMark Fasheh const char *function, 2584ccd979bdSMark Fasheh const char *fmt, ...) 2585ccd979bdSMark Fasheh { 2586ccd979bdSMark Fasheh va_list args; 2587ccd979bdSMark Fasheh 2588ccd979bdSMark Fasheh va_start(args, fmt); 25894a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2590ccd979bdSMark Fasheh va_end(args); 2591ccd979bdSMark Fasheh 2592ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2593ccd979bdSMark Fasheh * function the error came from. */ 2594ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2595ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2596ccd979bdSMark Fasheh 2597ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2598ccd979bdSMark Fasheh } 2599ccd979bdSMark Fasheh 2600ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2601ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2602ccd979bdSMark Fasheh * etc. */ 2603ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2604ccd979bdSMark Fasheh const char *function, 2605ccd979bdSMark Fasheh const char *fmt, ...) 2606ccd979bdSMark Fasheh { 2607ccd979bdSMark Fasheh va_list args; 2608ccd979bdSMark Fasheh 2609ccd979bdSMark Fasheh va_start(args, fmt); 26104a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2611ccd979bdSMark Fasheh va_end(args); 2612ccd979bdSMark Fasheh 2613ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2614ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2615ccd979bdSMark Fasheh 2616ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2617ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2618ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2619ccd979bdSMark Fasheh * errors. 2620ccd979bdSMark Fasheh * 2621ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2622ccd979bdSMark Fasheh * that our slot needs recovery. */ 2623ccd979bdSMark Fasheh 2624ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2625ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2626ccd979bdSMark Fasheh * here. */ 2627a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2628ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2629ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2630ccd979bdSMark Fasheh } 2631ccd979bdSMark Fasheh 2632e4b963f1SJoel Becker /* 2633e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2634e4b963f1SJoel Becker * when SIG_* is wrong. 2635e4b963f1SJoel Becker */ 2636e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2637e4b963f1SJoel Becker { 2638e4b963f1SJoel Becker int rc; 2639e4b963f1SJoel Becker sigset_t blocked; 2640e4b963f1SJoel Becker 2641e4b963f1SJoel Becker sigfillset(&blocked); 2642e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2643e4b963f1SJoel Becker BUG_ON(rc); 2644e4b963f1SJoel Becker } 2645e4b963f1SJoel Becker 2646e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2647e4b963f1SJoel Becker { 2648e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2649e4b963f1SJoel Becker BUG_ON(rc); 2650e4b963f1SJoel Becker } 2651e4b963f1SJoel Becker 2652ccd979bdSMark Fasheh module_init(ocfs2_init); 2653ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2654