1328970deSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2fa60ce2cSMasahiro Yamada /* 3ccd979bdSMark Fasheh * super.c 4ccd979bdSMark Fasheh * 5ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 6ccd979bdSMark Fasheh * 7ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 8ccd979bdSMark Fasheh */ 9ccd979bdSMark Fasheh 10ccd979bdSMark Fasheh #include <linux/module.h> 11ccd979bdSMark Fasheh #include <linux/fs.h> 12ccd979bdSMark Fasheh #include <linux/types.h> 13ccd979bdSMark Fasheh #include <linux/slab.h> 14ccd979bdSMark Fasheh #include <linux/highmem.h> 15ccd979bdSMark Fasheh #include <linux/init.h> 16ccd979bdSMark Fasheh #include <linux/random.h> 17ccd979bdSMark Fasheh #include <linux/statfs.h> 18ccd979bdSMark Fasheh #include <linux/moduleparam.h> 19ccd979bdSMark Fasheh #include <linux/blkdev.h> 20ccd979bdSMark Fasheh #include <linux/socket.h> 21ccd979bdSMark Fasheh #include <linux/inet.h> 22ccd979bdSMark Fasheh #include <linux/parser.h> 23ccd979bdSMark Fasheh #include <linux/crc32.h> 24ccd979bdSMark Fasheh #include <linux/debugfs.h> 25d550071cSSunil Mushran #include <linux/mount.h> 266953b4c0SJoel Becker #include <linux/seq_file.h> 2719ece546SJan Kara #include <linux/quotaops.h> 28f361bf4aSIngo Molnar #include <linux/signal.h> 29ccd979bdSMark Fasheh 3080a9a84dSWengang Wang #define CREATE_TRACE_POINTS 3180a9a84dSWengang Wang #include "ocfs2_trace.h" 3280a9a84dSWengang Wang 33ccd979bdSMark Fasheh #include <cluster/masklog.h> 34ccd979bdSMark Fasheh 35ccd979bdSMark Fasheh #include "ocfs2.h" 36ccd979bdSMark Fasheh 37ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 38ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 39ccd979bdSMark Fasheh 40ccd979bdSMark Fasheh #include "alloc.h" 41a11f7e63SMark Fasheh #include "aops.h" 42d030cc97SJoel Becker #include "blockcheck.h" 43ccd979bdSMark Fasheh #include "dlmglue.h" 44ccd979bdSMark Fasheh #include "export.h" 45ccd979bdSMark Fasheh #include "extent_map.h" 46ccd979bdSMark Fasheh #include "heartbeat.h" 47ccd979bdSMark Fasheh #include "inode.h" 48ccd979bdSMark Fasheh #include "journal.h" 49ccd979bdSMark Fasheh #include "localalloc.h" 50ccd979bdSMark Fasheh #include "namei.h" 51ccd979bdSMark Fasheh #include "slot_map.h" 52ccd979bdSMark Fasheh #include "super.h" 53ccd979bdSMark Fasheh #include "sysfile.h" 54ccd979bdSMark Fasheh #include "uptodate.h" 55cf1d6c76STiger Yang #include "xattr.h" 569e33d69fSJan Kara #include "quota.h" 57374a263eSTao Ma #include "refcounttree.h" 58b89c5428STiger Yang #include "suballoc.h" 59ccd979bdSMark Fasheh 60ccd979bdSMark Fasheh #include "buffer_head_io.h" 61a849d468SGang He #include "filecheck.h" 62ccd979bdSMark Fasheh 631a5c4e2aSFabian Frederick static struct kmem_cache *ocfs2_inode_cachep; 649e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 659e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 66ccd979bdSMark Fasheh 671a5c4e2aSFabian Frederick static struct dentry *ocfs2_debugfs_root; 68ccd979bdSMark Fasheh 69ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 70ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 71ff8fb335SGoldwyn Rodrigues MODULE_DESCRIPTION("OCFS2 cluster file system"); 72ccd979bdSMark Fasheh 73c0123adeSTiger Yang struct mount_options 74c0123adeSTiger Yang { 75d147b3d6SMark Fasheh unsigned long commit_interval; 76c0123adeSTiger Yang unsigned long mount_opt; 77c0123adeSTiger Yang unsigned int atime_quantum; 7838d51b2dSJunxiao Bi unsigned short slot; 7973c8a800SMark Fasheh int localalloc_opt; 80d02f00ccSMark Fasheh unsigned int resv_level; 8183f92318SMark Fasheh int dir_resv_level; 82b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 83c0123adeSTiger Yang }; 84c0123adeSTiger Yang 85ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 86c0123adeSTiger Yang struct mount_options *mopt, 87baf4661aSSunil Mushran int is_remount); 885297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 895297aad8SJan Kara struct mount_options *options); 9034c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root); 91ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 92ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 93ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 94ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 95ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 96ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 97ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 98ccd979bdSMark Fasheh 99726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 100ccd979bdSMark Fasheh 101ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 102ccd979bdSMark Fasheh 103ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 104ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 105bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 106ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 107ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 108ccd979bdSMark Fasheh struct buffer_head *bh, 10973be192bSJoel Becker u32 sectsize, 11073be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 111ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 112ccd979bdSMark Fasheh struct buffer_head *bh, 11373be192bSJoel Becker int sector_size, 11473be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 115ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 116ccd979bdSMark Fasheh struct buffer_head **bh, 117ccd979bdSMark Fasheh int block, 118ccd979bdSMark Fasheh int sect_size); 119ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 120e91b9194SAl Viro static void ocfs2_free_inode(struct inode *inode); 12119ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 12219ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 12319ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 124ccd979bdSMark Fasheh 1251c92ec67SJan Kara static struct dquot **ocfs2_get_dquots(struct inode *inode) 1261c92ec67SJan Kara { 1271c92ec67SJan Kara return OCFS2_I(inode)->i_dquot; 1281c92ec67SJan Kara } 1291c92ec67SJan Kara 130ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 131ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 132ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 133e91b9194SAl Viro .free_inode = ocfs2_free_inode, 134ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 135066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 136ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 137ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 138ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 139d550071cSSunil Mushran .show_options = ocfs2_show_options, 1409e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1419e33d69fSJan Kara .quota_write = ocfs2_quota_write, 1421c92ec67SJan Kara .get_dquots = ocfs2_get_dquots, 143ccd979bdSMark Fasheh }; 144ccd979bdSMark Fasheh 145ccd979bdSMark Fasheh enum { 146ccd979bdSMark Fasheh Opt_barrier, 147ccd979bdSMark Fasheh Opt_err_panic, 148ccd979bdSMark Fasheh Opt_err_ro, 149ccd979bdSMark Fasheh Opt_intr, 150ccd979bdSMark Fasheh Opt_nointr, 151ccd979bdSMark Fasheh Opt_hb_none, 152ccd979bdSMark Fasheh Opt_hb_local, 1532c442719SSunil Mushran Opt_hb_global, 154ccd979bdSMark Fasheh Opt_data_ordered, 155ccd979bdSMark Fasheh Opt_data_writeback, 1567f1a37e3STiger Yang Opt_atime_quantum, 157baf4661aSSunil Mushran Opt_slot, 158d147b3d6SMark Fasheh Opt_commit, 1592fbe8d1eSSunil Mushran Opt_localalloc, 16053fc622bSMark Fasheh Opt_localflocks, 161b61817e1SJoel Becker Opt_stack, 162cf1d6c76STiger Yang Opt_user_xattr, 163cf1d6c76STiger Yang Opt_nouser_xattr, 16412462f1dSJoel Becker Opt_inode64, 165a68979b8STiger Yang Opt_acl, 166a68979b8STiger Yang Opt_noacl, 16719ece546SJan Kara Opt_usrquota, 16819ece546SJan Kara Opt_grpquota, 1697bdb0d18STristan Ye Opt_coherency_buffered, 1707bdb0d18STristan Ye Opt_coherency_full, 171d02f00ccSMark Fasheh Opt_resv_level, 17283f92318SMark Fasheh Opt_dir_resv_level, 1731dfeb768Salex chen Opt_journal_async_commit, 1747d0fb914SGoldwyn Rodrigues Opt_err_cont, 175912f655dSGang He Opt_nocluster, 176ccd979bdSMark Fasheh Opt_err, 177ccd979bdSMark Fasheh }; 178ccd979bdSMark Fasheh 179a447c093SSteven Whitehouse static const match_table_t tokens = { 180ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 181ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 182ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 183ccd979bdSMark Fasheh {Opt_intr, "intr"}, 184ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 185ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 186ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 1872c442719SSunil Mushran {Opt_hb_global, OCFS2_HB_GLOBAL}, 188ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 189ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1907f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 191baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 192d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1932fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19453fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 195b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 196cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 197cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 19812462f1dSJoel Becker {Opt_inode64, "inode64"}, 199a68979b8STiger Yang {Opt_acl, "acl"}, 200a68979b8STiger Yang {Opt_noacl, "noacl"}, 20119ece546SJan Kara {Opt_usrquota, "usrquota"}, 20219ece546SJan Kara {Opt_grpquota, "grpquota"}, 2037bdb0d18STristan Ye {Opt_coherency_buffered, "coherency=buffered"}, 2047bdb0d18STristan Ye {Opt_coherency_full, "coherency=full"}, 205d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 20683f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 2071dfeb768Salex chen {Opt_journal_async_commit, "journal_async_commit"}, 2087d0fb914SGoldwyn Rodrigues {Opt_err_cont, "errors=continue"}, 209912f655dSGang He {Opt_nocluster, "nocluster"}, 210ccd979bdSMark Fasheh {Opt_err, NULL} 211ccd979bdSMark Fasheh }; 212ccd979bdSMark Fasheh 21350397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 21450397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 21550397507SSunil Mushran { 21650397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 21750397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 218df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 219df152c24SSunil Mushran int i, out = 0; 220bfd97a03Sjiangyiwen unsigned long flags; 22150397507SSunil Mushran 222d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 22350397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 22450397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 22550397507SSunil Mushran osb->fs_generation, osb->vol_label); 22650397507SSunil Mushran 227d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 22850397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 22950397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 23050397507SSunil Mushran 231d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 23250397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 23350397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 23450397507SSunil Mushran 235d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 23650397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 23750397507SSunil Mushran "ROcompat: 0x%X\n", 23850397507SSunil Mushran "Features", osb->s_feature_compat, 23950397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 24050397507SSunil Mushran 241d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 24250397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 24350397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 24450397507SSunil Mushran 245c3d38840SSunil Mushran if (cconn) { 246d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 247c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 248c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 24950397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 25050397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 25150397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 252c3d38840SSunil Mushran cconn->cc_version.pv_major, 253c3d38840SSunil Mushran cconn->cc_version.pv_minor); 254c3d38840SSunil Mushran } 25550397507SSunil Mushran 256bfd97a03Sjiangyiwen spin_lock_irqsave(&osb->dc_task_lock, flags); 257d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 25850397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 25950397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 260c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 261c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 262c3d38840SSunil Mushran osb->dc_work_sequence); 263bfd97a03Sjiangyiwen spin_unlock_irqrestore(&osb->dc_task_lock, flags); 26450397507SSunil Mushran 26550397507SSunil Mushran spin_lock(&osb->osb_lock); 266d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 26750397507SSunil Mushran "Recovery", 26850397507SSunil Mushran (osb->recovery_thread_task ? 26950397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 27050397507SSunil Mushran if (rm->rm_used == 0) 271d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, " None\n"); 27250397507SSunil Mushran else { 27350397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 274d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, " %d", 27550397507SSunil Mushran rm->rm_entries[i]); 276d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "\n"); 27750397507SSunil Mushran } 27850397507SSunil Mushran spin_unlock(&osb->osb_lock); 27950397507SSunil Mushran 280d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 2818fa9d17fSGoldwyn Rodrigues "%10s => Pid: %d Interval: %lu\n", "Commit", 282c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 2838fa9d17fSGoldwyn Rodrigues osb->osb_commit_interval); 28450397507SSunil Mushran 285d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 286c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 28750397507SSunil Mushran "Journal", osb->journal->j_state, 288c3d38840SSunil Mushran osb->journal->j_trans_id, 289c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 29050397507SSunil Mushran 291d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 29250397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 29350397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 29450397507SSunil Mushran "Stats", 29550397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 29650397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 29750397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 29850397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 29950397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 30050397507SSunil Mushran 301d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 30250397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 30350397507SSunil Mushran "Default: %u bits\n", 30450397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 30550397507SSunil Mushran (unsigned long long)osb->la_last_gd, 30650397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 30750397507SSunil Mushran 30850397507SSunil Mushran spin_lock(&osb->osb_lock); 309d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 310b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 311b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 31250397507SSunil Mushran osb->s_inode_steal_slot, 313b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 314b89c5428STiger Yang osb->s_meta_steal_slot, 315b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 31650397507SSunil Mushran spin_unlock(&osb->osb_lock); 31750397507SSunil Mushran 318d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "OrphanScan => "); 319d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "Local: %u Global: %u ", 320df152c24SSunil Mushran os->os_count, os->os_seqno); 321d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, " Last Scan: "); 322df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 323d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "Disabled\n"); 324df152c24SSunil Mushran else 325d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "%lu seconds ago\n", 326395627b0SDeepa Dinamani (unsigned long)(ktime_get_seconds() - os->os_scantime)); 327df152c24SSunil Mushran 328d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "%10s => %3s %10s\n", 32950397507SSunil Mushran "Slots", "Num", "RecoGen"); 33050397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 331d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 33250397507SSunil Mushran "%10s %c %3d %10d\n", 33350397507SSunil Mushran " ", 33450397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 33550397507SSunil Mushran i, osb->slot_recovery_generations[i]); 33650397507SSunil Mushran } 33750397507SSunil Mushran 33850397507SSunil Mushran return out; 33950397507SSunil Mushran } 34050397507SSunil Mushran 34150397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 34250397507SSunil Mushran { 34350397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 34450397507SSunil Mushran char *buf = NULL; 34550397507SSunil Mushran 34650397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 34750397507SSunil Mushran if (!buf) 34850397507SSunil Mushran goto bail; 34950397507SSunil Mushran 35050397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 35150397507SSunil Mushran 35250397507SSunil Mushran file->private_data = buf; 35350397507SSunil Mushran 35450397507SSunil Mushran return 0; 35550397507SSunil Mushran bail: 35650397507SSunil Mushran return -ENOMEM; 35750397507SSunil Mushran } 35850397507SSunil Mushran 35950397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36050397507SSunil Mushran { 36150397507SSunil Mushran kfree(file->private_data); 36250397507SSunil Mushran return 0; 36350397507SSunil Mushran } 36450397507SSunil Mushran 36550397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 36650397507SSunil Mushran size_t nbytes, loff_t *ppos) 36750397507SSunil Mushran { 36850397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 36950397507SSunil Mushran i_size_read(file->f_mapping->host)); 37050397507SSunil Mushran } 37150397507SSunil Mushran #else 37250397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 37350397507SSunil Mushran { 37450397507SSunil Mushran return 0; 37550397507SSunil Mushran } 37650397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 37750397507SSunil Mushran { 37850397507SSunil Mushran return 0; 37950397507SSunil Mushran } 38050397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 38150397507SSunil Mushran size_t nbytes, loff_t *ppos) 38250397507SSunil Mushran { 38350397507SSunil Mushran return 0; 38450397507SSunil Mushran } 38550397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 38650397507SSunil Mushran 387828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 38850397507SSunil Mushran .open = ocfs2_osb_debug_open, 38950397507SSunil Mushran .release = ocfs2_debug_release, 39050397507SSunil Mushran .read = ocfs2_debug_read, 39150397507SSunil Mushran .llseek = generic_file_llseek, 39250397507SSunil Mushran }; 39350397507SSunil Mushran 394ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 395ccd979bdSMark Fasheh { 396bddb8eb3SDenis Cheng int status; 397ccd979bdSMark Fasheh tid_t target; 398ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 399ccd979bdSMark Fasheh 400ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 401ccd979bdSMark Fasheh return -EROFS; 402ccd979bdSMark Fasheh 403ccd979bdSMark Fasheh if (wait) { 404ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 405ccd979bdSMark Fasheh if (status < 0) 406ccd979bdSMark Fasheh mlog_errno(status); 407ccd979bdSMark Fasheh } else { 408ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 409ccd979bdSMark Fasheh } 410ccd979bdSMark Fasheh 4111119d3c0Spiaojun if (jbd2_journal_start_commit(osb->journal->j_journal, 4122b4e30fbSJoel Becker &target)) { 413ccd979bdSMark Fasheh if (wait) 4141119d3c0Spiaojun jbd2_log_wait_commit(osb->journal->j_journal, 415ccd979bdSMark Fasheh target); 416ccd979bdSMark Fasheh } 417ccd979bdSMark Fasheh return 0; 418ccd979bdSMark Fasheh } 419ccd979bdSMark Fasheh 4201a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4211a224ad1SJan Kara { 4221a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4231a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4241a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4251a224ad1SJan Kara return 0; 4261a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4271a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4281a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4291a224ad1SJan Kara return 0; 4301a224ad1SJan Kara return 1; 4311a224ad1SJan Kara } 4321a224ad1SJan Kara 433ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 434ccd979bdSMark Fasheh { 435ccd979bdSMark Fasheh struct inode *new = NULL; 436ccd979bdSMark Fasheh int status = 0; 437ccd979bdSMark Fasheh int i; 438ccd979bdSMark Fasheh 4395fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 440ccd979bdSMark Fasheh if (IS_ERR(new)) { 441ccd979bdSMark Fasheh status = PTR_ERR(new); 442ccd979bdSMark Fasheh mlog_errno(status); 443ccd979bdSMark Fasheh goto bail; 444ccd979bdSMark Fasheh } 445ccd979bdSMark Fasheh osb->root_inode = new; 446ccd979bdSMark Fasheh 4475fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 448ccd979bdSMark Fasheh if (IS_ERR(new)) { 449ccd979bdSMark Fasheh status = PTR_ERR(new); 450ccd979bdSMark Fasheh mlog_errno(status); 451ccd979bdSMark Fasheh goto bail; 452ccd979bdSMark Fasheh } 453ccd979bdSMark Fasheh osb->sys_root_inode = new; 454ccd979bdSMark Fasheh 455ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 456ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4571a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4581a224ad1SJan Kara continue; 459ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 460ccd979bdSMark Fasheh if (!new) { 461ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 462025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 463ccd979bdSMark Fasheh mlog_errno(status); 464ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 465ccd979bdSMark Fasheh "possibly corrupt fs?", i); 466ccd979bdSMark Fasheh goto bail; 467ccd979bdSMark Fasheh } 468ccd979bdSMark Fasheh // the array now has one ref, so drop this one 469ccd979bdSMark Fasheh iput(new); 470ccd979bdSMark Fasheh } 471ccd979bdSMark Fasheh 472ccd979bdSMark Fasheh bail: 473c1e8d35eSTao Ma if (status) 474c1e8d35eSTao Ma mlog_errno(status); 475ccd979bdSMark Fasheh return status; 476ccd979bdSMark Fasheh } 477ccd979bdSMark Fasheh 478ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 479ccd979bdSMark Fasheh { 480ccd979bdSMark Fasheh struct inode *new = NULL; 481ccd979bdSMark Fasheh int status = 0; 482ccd979bdSMark Fasheh int i; 483ccd979bdSMark Fasheh 484ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 485ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 486ccd979bdSMark Fasheh i++) { 4871a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4881a224ad1SJan Kara continue; 489ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 490ccd979bdSMark Fasheh if (!new) { 491ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 492025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 493ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 494ccd979bdSMark Fasheh status, i, osb->slot_num); 495ccd979bdSMark Fasheh goto bail; 496ccd979bdSMark Fasheh } 497ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 498ccd979bdSMark Fasheh iput(new); 499ccd979bdSMark Fasheh } 500ccd979bdSMark Fasheh 501ccd979bdSMark Fasheh bail: 502c1e8d35eSTao Ma if (status) 503c1e8d35eSTao Ma mlog_errno(status); 504ccd979bdSMark Fasheh return status; 505ccd979bdSMark Fasheh } 506ccd979bdSMark Fasheh 507bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 508ccd979bdSMark Fasheh { 509bddb8eb3SDenis Cheng int i; 510ccd979bdSMark Fasheh struct inode *inode; 511ccd979bdSMark Fasheh 512b4d693fcSTao Ma for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { 513b4d693fcSTao Ma inode = osb->global_system_inodes[i]; 514ccd979bdSMark Fasheh if (inode) { 515ccd979bdSMark Fasheh iput(inode); 516b4d693fcSTao Ma osb->global_system_inodes[i] = NULL; 517ccd979bdSMark Fasheh } 518ccd979bdSMark Fasheh } 519ccd979bdSMark Fasheh 520ccd979bdSMark Fasheh inode = osb->sys_root_inode; 521ccd979bdSMark Fasheh if (inode) { 522ccd979bdSMark Fasheh iput(inode); 523ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 524ccd979bdSMark Fasheh } 525ccd979bdSMark Fasheh 526ccd979bdSMark Fasheh inode = osb->root_inode; 527ccd979bdSMark Fasheh if (inode) { 528ccd979bdSMark Fasheh iput(inode); 529ccd979bdSMark Fasheh osb->root_inode = NULL; 530ccd979bdSMark Fasheh } 531ccd979bdSMark Fasheh 532b4d693fcSTao Ma if (!osb->local_system_inodes) 533c1e8d35eSTao Ma return; 534b4d693fcSTao Ma 535b4d693fcSTao Ma for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { 536b4d693fcSTao Ma if (osb->local_system_inodes[i]) { 537b4d693fcSTao Ma iput(osb->local_system_inodes[i]); 538b4d693fcSTao Ma osb->local_system_inodes[i] = NULL; 539b4d693fcSTao Ma } 540b4d693fcSTao Ma } 541b4d693fcSTao Ma 542b4d693fcSTao Ma kfree(osb->local_system_inodes); 543b4d693fcSTao Ma osb->local_system_inodes = NULL; 544ccd979bdSMark Fasheh } 545ccd979bdSMark Fasheh 546ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 547ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 548ccd979bdSMark Fasheh { 549ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 550ccd979bdSMark Fasheh 551fd60b288SMuchun Song oi = alloc_inode_sb(sb, ocfs2_inode_cachep, GFP_NOFS); 552ccd979bdSMark Fasheh if (!oi) 553ccd979bdSMark Fasheh return NULL; 554ccd979bdSMark Fasheh 5552931cdcbSDarrick J. Wong oi->i_sync_tid = 0; 5562931cdcbSDarrick J. Wong oi->i_datasync_tid = 0; 5571c92ec67SJan Kara memset(&oi->i_dquot, 0, sizeof(oi->i_dquot)); 5582931cdcbSDarrick J. Wong 5592b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 560ccd979bdSMark Fasheh return &oi->vfs_inode; 561ccd979bdSMark Fasheh } 562ccd979bdSMark Fasheh 563e91b9194SAl Viro static void ocfs2_free_inode(struct inode *inode) 564fa0d7e3dSNick Piggin { 565fa0d7e3dSNick Piggin kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 566fa0d7e3dSNick Piggin } 567fa0d7e3dSNick Piggin 5685a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5695a254031SMark Fasheh unsigned int cbits) 570ccd979bdSMark Fasheh { 5715a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5725a254031SMark Fasheh unsigned int trim = bytes; 5735a254031SMark Fasheh unsigned int bitshift = 32; 574ccd979bdSMark Fasheh 5755a254031SMark Fasheh /* 5765a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5775a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5785a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 579ccd979bdSMark Fasheh */ 580ccd979bdSMark Fasheh 581ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 5822ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5835a254031SMark Fasheh /* 5845a254031SMark Fasheh * We might be limited by page cache size. 5855a254031SMark Fasheh */ 58609cbfeafSKirill A. Shutemov if (bytes > PAGE_SIZE) { 58709cbfeafSKirill A. Shutemov bytes = PAGE_SIZE; 5885a254031SMark Fasheh trim = 1; 5895a254031SMark Fasheh /* 5905a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5915a254031SMark Fasheh * MAX_LFS_FILESIZE 5925a254031SMark Fasheh */ 5935a254031SMark Fasheh bitshift = 31; 5945a254031SMark Fasheh } 595ccd979bdSMark Fasheh #endif 596ccd979bdSMark Fasheh 5975a254031SMark Fasheh /* 5985a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 5995a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 6005a254031SMark Fasheh * an extent start is at the max offset. 6015a254031SMark Fasheh */ 6025a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 603ccd979bdSMark Fasheh } 604ccd979bdSMark Fasheh 605ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 606ccd979bdSMark Fasheh { 607ccd979bdSMark Fasheh int incompat_features; 608ccd979bdSMark Fasheh int ret = 0; 609c0123adeSTiger Yang struct mount_options parsed_options; 610ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 6112c442719SSunil Mushran u32 tmp; 612ccd979bdSMark Fasheh 61302b9984dSTheodore Ts'o sync_filesystem(sb); 61402b9984dSTheodore Ts'o 6155297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6165297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 617ccd979bdSMark Fasheh ret = -EINVAL; 618ccd979bdSMark Fasheh goto out; 619ccd979bdSMark Fasheh } 620ccd979bdSMark Fasheh 621912f655dSGang He tmp = OCFS2_MOUNT_NOCLUSTER; 622912f655dSGang He if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 623912f655dSGang He ret = -EINVAL; 624912f655dSGang He mlog(ML_ERROR, "Cannot change nocluster option on remount\n"); 625912f655dSGang He goto out; 626912f655dSGang He } 627912f655dSGang He 6282c442719SSunil Mushran tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | 6292c442719SSunil Mushran OCFS2_MOUNT_HB_NONE; 6302c442719SSunil Mushran if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 631ccd979bdSMark Fasheh ret = -EINVAL; 632ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 633ccd979bdSMark Fasheh goto out; 634ccd979bdSMark Fasheh } 635ccd979bdSMark Fasheh 636ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 637c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 638ccd979bdSMark Fasheh ret = -EINVAL; 639ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 640ccd979bdSMark Fasheh goto out; 641ccd979bdSMark Fasheh } 642ccd979bdSMark Fasheh 64312462f1dSJoel Becker /* Probably don't want this on remount; it might 64412462f1dSJoel Becker * mess with other nodes */ 64512462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 64612462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 64712462f1dSJoel Becker ret = -EINVAL; 64812462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 64912462f1dSJoel Becker goto out; 65012462f1dSJoel Becker } 65112462f1dSJoel Becker 652ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 6531751e8a6SLinus Torvalds if ((bool)(*flags & SB_RDONLY) != sb_rdonly(sb)) { 65419ece546SJan Kara /* Disable quota accounting before remounting RO */ 6551751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 65619ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 65719ece546SJan Kara if (ret < 0) 65819ece546SJan Kara goto out; 65919ece546SJan Kara } 660ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 661ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 662ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 663ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 664ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 665ccd979bdSMark Fasheh ret = -EROFS; 666ccd979bdSMark Fasheh goto unlock_osb; 667ccd979bdSMark Fasheh } 668ccd979bdSMark Fasheh 6691751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 6701751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 671ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 672ccd979bdSMark Fasheh } else { 673ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 674ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 675ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 676ccd979bdSMark Fasheh ret = -EROFS; 677ccd979bdSMark Fasheh goto unlock_osb; 678ccd979bdSMark Fasheh } 679ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 680ccd979bdSMark Fasheh if (incompat_features) { 681ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 682ccd979bdSMark Fasheh "of unsupported optional features " 683ccd979bdSMark Fasheh "(%x).\n", incompat_features); 684ccd979bdSMark Fasheh ret = -EINVAL; 685ccd979bdSMark Fasheh goto unlock_osb; 686ccd979bdSMark Fasheh } 6871751e8a6SLinus Torvalds sb->s_flags &= ~SB_RDONLY; 688ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 689ccd979bdSMark Fasheh } 69032a42d39STao Ma trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); 691ccd979bdSMark Fasheh unlock_osb: 692ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 69319ece546SJan Kara /* Enable quota accounting after remounting RW */ 6941751e8a6SLinus Torvalds if (!ret && !(*flags & SB_RDONLY)) { 69519ece546SJan Kara if (sb_any_quota_suspended(sb)) 69619ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 69719ece546SJan Kara else 69819ece546SJan Kara ret = ocfs2_enable_quotas(osb); 69919ece546SJan Kara if (ret < 0) { 70019ece546SJan Kara /* Return back changes... */ 70119ece546SJan Kara spin_lock(&osb->osb_lock); 7021751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 70319ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 70419ece546SJan Kara spin_unlock(&osb->osb_lock); 70519ece546SJan Kara goto out; 70619ece546SJan Kara } 70719ece546SJan Kara } 708ccd979bdSMark Fasheh } 709ccd979bdSMark Fasheh 710ccd979bdSMark Fasheh if (!ret) { 711ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 712ccd979bdSMark Fasheh * remount. */ 713c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 714c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 715c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 716d147b3d6SMark Fasheh if (parsed_options.commit_interval) 717d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 718e001e796SMark Fasheh 719e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 720e001e796SMark Fasheh ocfs2_set_journal_params(osb); 72157b09bb5SJan Kara 7221751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | 72357b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 7241751e8a6SLinus Torvalds SB_POSIXACL : 0); 725ccd979bdSMark Fasheh } 726ccd979bdSMark Fasheh out: 727ccd979bdSMark Fasheh return ret; 728ccd979bdSMark Fasheh } 729ccd979bdSMark Fasheh 730ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 731ccd979bdSMark Fasheh struct buffer_head **bh, 73273be192bSJoel Becker int *sector_size, 73373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 734ccd979bdSMark Fasheh { 735bddb8eb3SDenis Cheng int status, tmpstat; 736ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 737ccd979bdSMark Fasheh struct ocfs2_dinode *di; 738ccd979bdSMark Fasheh int blksize; 739ccd979bdSMark Fasheh 740ccd979bdSMark Fasheh *bh = NULL; 741ccd979bdSMark Fasheh 742ccd979bdSMark Fasheh /* may be > 512 */ 743e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 744ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 745ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 746ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 747ccd979bdSMark Fasheh status = -EINVAL; 748ccd979bdSMark Fasheh goto bail; 749ccd979bdSMark Fasheh } 750ccd979bdSMark Fasheh 751ccd979bdSMark Fasheh /* Can this really happen? */ 752ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 753ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 754ccd979bdSMark Fasheh 755ccd979bdSMark Fasheh /* check block zero for old format */ 756ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 757ccd979bdSMark Fasheh if (status < 0) { 758ccd979bdSMark Fasheh mlog_errno(status); 759ccd979bdSMark Fasheh goto bail; 760ccd979bdSMark Fasheh } 761ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 762ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 763ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 764ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 765ccd979bdSMark Fasheh status = -EINVAL; 766ccd979bdSMark Fasheh } 767ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 768ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 769ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 770ccd979bdSMark Fasheh hdr->signature); 771ccd979bdSMark Fasheh status = -EINVAL; 772ccd979bdSMark Fasheh } 773ccd979bdSMark Fasheh brelse(*bh); 774ccd979bdSMark Fasheh *bh = NULL; 775ccd979bdSMark Fasheh if (status < 0) { 776ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 777ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 778ccd979bdSMark Fasheh goto bail; 779ccd979bdSMark Fasheh } 780ccd979bdSMark Fasheh 781ccd979bdSMark Fasheh /* 782ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 783ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 784ccd979bdSMark Fasheh * the minimum clustersize. 785ccd979bdSMark Fasheh */ 786ccd979bdSMark Fasheh status = -EINVAL; 787ccd979bdSMark Fasheh for (blksize = *sector_size; 788ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 789ccd979bdSMark Fasheh blksize <<= 1) { 790ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 791ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 792ccd979bdSMark Fasheh blksize); 793ccd979bdSMark Fasheh if (tmpstat < 0) { 794ccd979bdSMark Fasheh status = tmpstat; 795ccd979bdSMark Fasheh mlog_errno(status); 796fb5cbe9eSJoel Becker break; 797ccd979bdSMark Fasheh } 798ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 79973be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 8001c1d9793SJan Kara spin_lock_init(&stats->b_lock); 801fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 802fb5cbe9eSJoel Becker if (tmpstat < 0) { 803ccd979bdSMark Fasheh brelse(*bh); 804ccd979bdSMark Fasheh *bh = NULL; 805fb5cbe9eSJoel Becker } 806fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 807fb5cbe9eSJoel Becker status = tmpstat; 808ccd979bdSMark Fasheh break; 809ccd979bdSMark Fasheh } 810fb5cbe9eSJoel Becker } 811ccd979bdSMark Fasheh 812ccd979bdSMark Fasheh bail: 813ccd979bdSMark Fasheh return status; 814ccd979bdSMark Fasheh } 815ccd979bdSMark Fasheh 816c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 817c271c5c2SSunil Mushran { 8182c442719SSunil Mushran u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; 8192c442719SSunil Mushran 8202c442719SSunil Mushran if (osb->s_mount_opt & hb_enabled) { 821c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 822c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 823c271c5c2SSunil Mushran "mounted device.\n"); 824c271c5c2SSunil Mushran return -EINVAL; 825c271c5c2SSunil Mushran } 826b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 827b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 828b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 829b61817e1SJoel Becker return -EINVAL; 830b61817e1SJoel Becker } 8312c442719SSunil Mushran if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && 8322c442719SSunil Mushran !ocfs2_cluster_o2cb_global_heartbeat(osb)) || 8332c442719SSunil Mushran ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && 8342c442719SSunil Mushran ocfs2_cluster_o2cb_global_heartbeat(osb))) { 8352c442719SSunil Mushran mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); 8362c442719SSunil Mushran return -EINVAL; 8372c442719SSunil Mushran } 838b61817e1SJoel Becker } 839b61817e1SJoel Becker 8402c442719SSunil Mushran if (!(osb->s_mount_opt & hb_enabled)) { 841b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 842b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 843c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 844c271c5c2SSunil Mushran "a read-write clustered device.\n"); 845c271c5c2SSunil Mushran return -EINVAL; 846c271c5c2SSunil Mushran } 847c271c5c2SSunil Mushran } 848c271c5c2SSunil Mushran 849c271c5c2SSunil Mushran return 0; 850c271c5c2SSunil Mushran } 851c271c5c2SSunil Mushran 852b61817e1SJoel Becker /* 853b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 854b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 855b61817e1SJoel Becker * have passed a stack. 856b61817e1SJoel Becker */ 857b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 858b61817e1SJoel Becker struct mount_options *mopt) 859b61817e1SJoel Becker { 860b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 861b61817e1SJoel Becker mlog(ML_ERROR, 862b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 863b61817e1SJoel Becker "does not support it\n"); 864b61817e1SJoel Becker return -EINVAL; 865b61817e1SJoel Becker } 866b61817e1SJoel Becker 867b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 868912f655dSGang He !(osb->s_mount_opt & OCFS2_MOUNT_NOCLUSTER) && 869b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 870b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 871b61817e1SJoel Becker mlog(ML_ERROR, 872b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 873b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 874b61817e1SJoel Becker mopt->cluster_stack, 875b61817e1SJoel Becker osb->osb_cluster_stack); 876b61817e1SJoel Becker return -EINVAL; 877b61817e1SJoel Becker } 878b61817e1SJoel Becker 879b61817e1SJoel Becker return 0; 880b61817e1SJoel Becker } 881b61817e1SJoel Becker 88219ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 88319ece546SJan Kara { 88419ece546SJan Kara int type; 88519ece546SJan Kara struct super_block *sb = osb->sb; 88652362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 88752362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 88819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 88919ece546SJan Kara int status = 0; 89019ece546SJan Kara 89152362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 89219ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 89319ece546SJan Kara continue; 89419ece546SJan Kara if (unsuspend) 8950f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 896eea7feb0SJan Kara else { 897eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 898eea7feb0SJan Kara 899eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 900eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 901eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 9020f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 903eea7feb0SJan Kara } 90419ece546SJan Kara if (status < 0) 90519ece546SJan Kara break; 90619ece546SJan Kara } 90719ece546SJan Kara if (status < 0) 90819ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 90919ece546SJan Kara "remount (error = %d).\n", status); 91019ece546SJan Kara return status; 91119ece546SJan Kara } 91219ece546SJan Kara 91319ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 91419ece546SJan Kara { 91552362810SJan Kara struct inode *inode[OCFS2_MAXQUOTAS] = { NULL, NULL }; 91619ece546SJan Kara struct super_block *sb = osb->sb; 91752362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 91852362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 91919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 92052362810SJan Kara unsigned int ino[OCFS2_MAXQUOTAS] = { 92152362810SJan Kara LOCAL_USER_QUOTA_SYSTEM_INODE, 92219ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 92319ece546SJan Kara int status; 92419ece546SJan Kara int type; 92519ece546SJan Kara 92619ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 92752362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 92819ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 92919ece546SJan Kara continue; 93019ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 93119ece546SJan Kara osb->slot_num); 93219ece546SJan Kara if (!inode[type]) { 93319ece546SJan Kara status = -ENOENT; 93419ece546SJan Kara goto out_quota_off; 93519ece546SJan Kara } 9367212b95eSJan Kara status = dquot_load_quota_inode(inode[type], type, QFMT_OCFS2, 93719ece546SJan Kara DQUOT_USAGE_ENABLED); 93819ece546SJan Kara if (status < 0) 93919ece546SJan Kara goto out_quota_off; 94019ece546SJan Kara } 94119ece546SJan Kara 94252362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 94319ece546SJan Kara iput(inode[type]); 94419ece546SJan Kara return 0; 94519ece546SJan Kara out_quota_off: 94619ece546SJan Kara ocfs2_disable_quotas(osb); 94752362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 94819ece546SJan Kara iput(inode[type]); 94919ece546SJan Kara mlog_errno(status); 95019ece546SJan Kara return status; 95119ece546SJan Kara } 95219ece546SJan Kara 95319ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 95419ece546SJan Kara { 95519ece546SJan Kara int type; 95619ece546SJan Kara struct inode *inode; 95719ece546SJan Kara struct super_block *sb = osb->sb; 958c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 95919ece546SJan Kara 96019ece546SJan Kara /* We mostly ignore errors in this function because there's not much 96119ece546SJan Kara * we can do when we see them */ 96252362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 96319ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 96419ece546SJan Kara continue; 965c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 966c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 96719ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 96819ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 96919ece546SJan Kara * memory and so they will be automatically synced to global 97019ece546SJan Kara * quota files */ 9710f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 97219ece546SJan Kara DQUOT_LIMITS_ENABLED); 97319ece546SJan Kara iput(inode); 97419ece546SJan Kara } 97519ece546SJan Kara } 97619ece546SJan Kara 977ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 978ccd979bdSMark Fasheh { 979ccd979bdSMark Fasheh struct dentry *root; 980ccd979bdSMark Fasheh int status, sector_size; 981c0123adeSTiger Yang struct mount_options parsed_options; 982ccd979bdSMark Fasheh struct inode *inode = NULL; 983ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 984ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 98549fa8140SGoldwyn Rodrigues char nodestr[12]; 98673be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 987ccd979bdSMark Fasheh 98832a42d39STao Ma trace_ocfs2_fill_super(sb, data, silent); 989ccd979bdSMark Fasheh 990c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 991c271c5c2SSunil Mushran status = -EINVAL; 992c271c5c2SSunil Mushran goto read_super_error; 993c271c5c2SSunil Mushran } 994c271c5c2SSunil Mushran 995ccd979bdSMark Fasheh /* probe for superblock */ 99673be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 997ccd979bdSMark Fasheh if (status < 0) { 998ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 999ccd979bdSMark Fasheh goto read_super_error; 1000ccd979bdSMark Fasheh } 1001ccd979bdSMark Fasheh 100273be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1003ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1004ccd979bdSMark Fasheh if (status < 0) { 1005ccd979bdSMark Fasheh mlog_errno(status); 1006ccd979bdSMark Fasheh goto read_super_error; 1007ccd979bdSMark Fasheh } 1008ccd979bdSMark Fasheh brelse(bh); 1009ccd979bdSMark Fasheh bh = NULL; 1010a68979b8STiger Yang 10115297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10125297aad8SJan Kara status = -EINVAL; 10135297aad8SJan Kara goto read_super_error; 10145297aad8SJan Kara } 1015c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1016c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1017c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1018d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 101973c8a800SMark Fasheh 102073c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1021d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 102283f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 102383f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 102483f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 102583f92318SMark Fasheh else 102683f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1027ccd979bdSMark Fasheh 1028b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1029b61817e1SJoel Becker if (status) 1030b61817e1SJoel Becker goto read_super_error; 1031b61817e1SJoel Becker 1032ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1033ccd979bdSMark Fasheh 10341751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~(SB_POSIXACL | SB_NOSEC)) | 10351751e8a6SLinus Torvalds ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? SB_POSIXACL : 0); 1036a68979b8STiger Yang 10371751e8a6SLinus Torvalds /* Hard readonly mode only if: bdev_read_only, SB_RDONLY, 1038ccd979bdSMark Fasheh * heartbeat=none */ 1039ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1040bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 1041ccd979bdSMark Fasheh status = -EACCES; 1042ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1043ccd979bdSMark Fasheh "mount was not specified.\n"); 1044ccd979bdSMark Fasheh goto read_super_error; 1045ccd979bdSMark Fasheh } 1046ccd979bdSMark Fasheh 1047ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1048ccd979bdSMark Fasheh * on a readonly device. */ 1049ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1050ccd979bdSMark Fasheh status = -EROFS; 1051ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1052ccd979bdSMark Fasheh "device.\n"); 1053ccd979bdSMark Fasheh goto read_super_error; 1054ccd979bdSMark Fasheh } 1055ccd979bdSMark Fasheh 1056ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1057ccd979bdSMark Fasheh if (status < 0) { 1058ccd979bdSMark Fasheh if (status == -EROFS) 1059ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1060ccd979bdSMark Fasheh "file system, but write access is " 1061ccd979bdSMark Fasheh "unavailable.\n"); 1062ccd979bdSMark Fasheh else 1063ccd979bdSMark Fasheh mlog_errno(status); 1064ccd979bdSMark Fasheh goto read_super_error; 1065ccd979bdSMark Fasheh } 1066ccd979bdSMark Fasheh 1067ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1068ccd979bdSMark Fasheh 1069619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Readonly device (%s) detected. " 1070619c200dSSunil Mushran "Cluster services will not be used for this mount. " 1071619c200dSSunil Mushran "Recovery will be skipped.\n", osb->dev_str); 1072ccd979bdSMark Fasheh } 1073ccd979bdSMark Fasheh 1074ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1075bc98a42cSDavid Howells if (sb_rdonly(sb)) 1076ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1077ccd979bdSMark Fasheh } 1078ccd979bdSMark Fasheh 1079c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1080c271c5c2SSunil Mushran if (status < 0) { 1081c271c5c2SSunil Mushran mlog_errno(status); 1082c271c5c2SSunil Mushran goto read_super_error; 1083c271c5c2SSunil Mushran } 1084c271c5c2SSunil Mushran 1085ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1086ccd979bdSMark Fasheh ocfs2_debugfs_root); 1087ccd979bdSMark Fasheh 10885e7a3ed9SGreg Kroah-Hartman debugfs_create_file("fs_state", S_IFREG|S_IRUSR, osb->osb_debug_root, 10895e7a3ed9SGreg Kroah-Hartman osb, &ocfs2_osb_debug_fops); 109050397507SSunil Mushran 1091e581595eSGreg Kroah-Hartman if (ocfs2_meta_ecc(osb)) 1092e581595eSGreg Kroah-Hartman ocfs2_blockcheck_stats_debugfs_install( &osb->osb_ecc_stats, 109373be192bSJoel Becker osb->osb_debug_root); 109473be192bSJoel Becker 1095ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1096ccd979bdSMark Fasheh if (status < 0) 1097ccd979bdSMark Fasheh goto read_super_error; 1098ccd979bdSMark Fasheh 1099be0d93f0SAl Viro if (osb->root_inode) 1100be0d93f0SAl Viro inode = igrab(osb->root_inode); 1101be0d93f0SAl Viro 1102ccd979bdSMark Fasheh if (!inode) { 1103ccd979bdSMark Fasheh status = -EIO; 1104ccd979bdSMark Fasheh mlog_errno(status); 1105ccd979bdSMark Fasheh goto read_super_error; 1106ccd979bdSMark Fasheh } 1107ccd979bdSMark Fasheh 11085f483c4aSGang He osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL, 11095f483c4aSGang He &ocfs2_kset->kobj); 11105f483c4aSGang He if (!osb->osb_dev_kset) { 11115f483c4aSGang He status = -ENOMEM; 11125f483c4aSGang He mlog(ML_ERROR, "Unable to create device kset %s.\n", sb->s_id); 11135f483c4aSGang He goto read_super_error; 11145f483c4aSGang He } 11155f483c4aSGang He 11165f483c4aSGang He /* Create filecheck sysfs related directories/files at 11175f483c4aSGang He * /sys/fs/ocfs2/<devname>/filecheck */ 11185f483c4aSGang He if (ocfs2_filecheck_create_sysfs(osb)) { 11195f483c4aSGang He status = -ENOMEM; 11205f483c4aSGang He mlog(ML_ERROR, "Unable to create filecheck sysfs directory at " 11215f483c4aSGang He "/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id); 11225f483c4aSGang He goto read_super_error; 11235f483c4aSGang He } 11245f483c4aSGang He 11257b0b1332SJoseph Qi root = d_make_root(inode); 11267b0b1332SJoseph Qi if (!root) { 11277b0b1332SJoseph Qi status = -ENOMEM; 11287b0b1332SJoseph Qi mlog_errno(status); 11297b0b1332SJoseph Qi goto read_super_error; 11307b0b1332SJoseph Qi } 11317b0b1332SJoseph Qi 11327b0b1332SJoseph Qi sb->s_root = root; 11337b0b1332SJoseph Qi 11347b0b1332SJoseph Qi ocfs2_complete_mount_recovery(osb); 11357b0b1332SJoseph Qi 1136c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1137c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1138c271c5c2SSunil Mushran else 113919fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1140c271c5c2SSunil Mushran 1141c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1142781ee3e2SSunil Mushran "with %s data mode.\n", 1143c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1144ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1145ccd979bdSMark Fasheh "ordered"); 1146ccd979bdSMark Fasheh 1147912f655dSGang He if ((osb->s_mount_opt & OCFS2_MOUNT_NOCLUSTER) && 1148912f655dSGang He !(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT)) 1149912f655dSGang He printk(KERN_NOTICE "ocfs2: The shared device (%s) is mounted " 1150912f655dSGang He "without cluster aware mode.\n", osb->dev_str); 1151912f655dSGang He 1152ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1153ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1154ccd979bdSMark Fasheh 115519ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 115619ece546SJan Kara * for cluster locks recovery now. That also means that truncation 115719ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 1158bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 115919ece546SJan Kara status = ocfs2_enable_quotas(osb); 116019ece546SJan Kara if (status < 0) { 116119ece546SJan Kara /* We have to err-out specially here because 116219ece546SJan Kara * s_root is already set */ 116319ece546SJan Kara mlog_errno(status); 116419ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 116519ece546SJan Kara wake_up(&osb->osb_mount_event); 116619ece546SJan Kara return status; 116719ece546SJan Kara } 116819ece546SJan Kara } 116919ece546SJan Kara 117019ece546SJan Kara ocfs2_complete_quota_recovery(osb); 117119ece546SJan Kara 117219ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 117319ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 117419ece546SJan Kara wake_up(&osb->osb_mount_event); 117519ece546SJan Kara 1176df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 11778b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1178df152c24SSunil Mushran 1179ccd979bdSMark Fasheh return status; 1180ccd979bdSMark Fasheh 1181ccd979bdSMark Fasheh read_super_error: 1182ccd979bdSMark Fasheh brelse(bh); 1183ccd979bdSMark Fasheh 1184a52370b3SGang He if (status) 1185a52370b3SGang He mlog_errno(status); 1186a52370b3SGang He 1187ccd979bdSMark Fasheh if (osb) { 1188ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1189ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1190ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1191ccd979bdSMark Fasheh } 1192ccd979bdSMark Fasheh 1193ccd979bdSMark Fasheh return status; 1194ccd979bdSMark Fasheh } 1195ccd979bdSMark Fasheh 1196152a0836SAl Viro static struct dentry *ocfs2_mount(struct file_system_type *fs_type, 1197ccd979bdSMark Fasheh int flags, 1198ccd979bdSMark Fasheh const char *dev_name, 1199152a0836SAl Viro void *data) 1200ccd979bdSMark Fasheh { 1201152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); 1202ccd979bdSMark Fasheh } 1203ccd979bdSMark Fasheh 1204ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1205ccd979bdSMark Fasheh .owner = THIS_MODULE, 1206ccd979bdSMark Fasheh .name = "ocfs2", 1207152a0836SAl Viro .mount = ocfs2_mount, 12088ed6b237SGoldwyn Rodrigues .kill_sb = kill_block_super, 12091ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1210ccd979bdSMark Fasheh .next = NULL 1211ccd979bdSMark Fasheh }; 121291417705SEric W. Biederman MODULE_ALIAS_FS("ocfs2"); 1213ccd979bdSMark Fasheh 12145297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12155297aad8SJan Kara struct mount_options *options) 12165297aad8SJan Kara { 12175297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12185297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12195297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12205297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12215297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12225297aad8SJan Kara return 0; 12235297aad8SJan Kara } 12245297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12255297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12265297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12275297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12285297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12295297aad8SJan Kara return 0; 12305297aad8SJan Kara } 12315297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12325297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12335297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12345297aad8SJan Kara "feature is not enabled\n"); 12355297aad8SJan Kara return 0; 12365297aad8SJan Kara } 12375297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12385297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12395297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12405297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12415297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 12425297aad8SJan Kara else 12435297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 12445297aad8SJan Kara } 12455297aad8SJan Kara return 1; 12465297aad8SJan Kara } 12475297aad8SJan Kara 1248ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1249ccd979bdSMark Fasheh char *options, 1250c0123adeSTiger Yang struct mount_options *mopt, 1251ccd979bdSMark Fasheh int is_remount) 1252ccd979bdSMark Fasheh { 125352c303c5SMark Fasheh int status, user_stack = 0; 1254ccd979bdSMark Fasheh char *p; 12552c442719SSunil Mushran u32 tmp; 12563eb5bdf0SNorton.Zhu int token, option; 12573eb5bdf0SNorton.Zhu substring_t args[MAX_OPT_ARGS]; 1258ccd979bdSMark Fasheh 125932a42d39STao Ma trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); 1260ccd979bdSMark Fasheh 1261d147b3d6SMark Fasheh mopt->commit_interval = 0; 12624b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1263c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1264c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 126573c8a800SMark Fasheh mopt->localalloc_opt = -1; 1266b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1267d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 126883f92318SMark Fasheh mopt->dir_resv_level = -1; 1269ccd979bdSMark Fasheh 1270ccd979bdSMark Fasheh if (!options) { 1271ccd979bdSMark Fasheh status = 1; 1272ccd979bdSMark Fasheh goto bail; 1273ccd979bdSMark Fasheh } 1274ccd979bdSMark Fasheh 1275ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1276ccd979bdSMark Fasheh if (!*p) 1277ccd979bdSMark Fasheh continue; 1278ccd979bdSMark Fasheh 1279ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1280ccd979bdSMark Fasheh switch (token) { 1281ccd979bdSMark Fasheh case Opt_hb_local: 1282c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1283ccd979bdSMark Fasheh break; 1284ccd979bdSMark Fasheh case Opt_hb_none: 12852c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; 12862c442719SSunil Mushran break; 12872c442719SSunil Mushran case Opt_hb_global: 12882c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; 1289ccd979bdSMark Fasheh break; 1290ccd979bdSMark Fasheh case Opt_barrier: 1291ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1292ccd979bdSMark Fasheh status = 0; 1293ccd979bdSMark Fasheh goto bail; 1294ccd979bdSMark Fasheh } 1295ccd979bdSMark Fasheh if (option) 1296c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1297ccd979bdSMark Fasheh else 1298c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1299ccd979bdSMark Fasheh break; 1300ccd979bdSMark Fasheh case Opt_intr: 1301c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1302ccd979bdSMark Fasheh break; 1303ccd979bdSMark Fasheh case Opt_nointr: 1304c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1305ccd979bdSMark Fasheh break; 1306ccd979bdSMark Fasheh case Opt_err_panic: 13077d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 13087d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 1309c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1310ccd979bdSMark Fasheh break; 1311ccd979bdSMark Fasheh case Opt_err_ro: 13127d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 1313c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 13147d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_ROFS; 13157d0fb914SGoldwyn Rodrigues break; 13167d0fb914SGoldwyn Rodrigues case Opt_err_cont: 13177d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 13187d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 13197d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_CONT; 1320ccd979bdSMark Fasheh break; 1321ccd979bdSMark Fasheh case Opt_data_ordered: 1322c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1323ccd979bdSMark Fasheh break; 1324ccd979bdSMark Fasheh case Opt_data_writeback: 1325c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1326ccd979bdSMark Fasheh break; 1327cf1d6c76STiger Yang case Opt_user_xattr: 1328cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1329cf1d6c76STiger Yang break; 1330cf1d6c76STiger Yang case Opt_nouser_xattr: 1331cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1332cf1d6c76STiger Yang break; 13337f1a37e3STiger Yang case Opt_atime_quantum: 13347f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13357f1a37e3STiger Yang status = 0; 13367f1a37e3STiger Yang goto bail; 13377f1a37e3STiger Yang } 13387f1a37e3STiger Yang if (option >= 0) 1339c0123adeSTiger Yang mopt->atime_quantum = option; 13407f1a37e3STiger Yang break; 1341baf4661aSSunil Mushran case Opt_slot: 1342baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1343baf4661aSSunil Mushran status = 0; 1344baf4661aSSunil Mushran goto bail; 1345baf4661aSSunil Mushran } 1346baf4661aSSunil Mushran if (option) 134738d51b2dSJunxiao Bi mopt->slot = (u16)option; 1348baf4661aSSunil Mushran break; 1349d147b3d6SMark Fasheh case Opt_commit: 1350d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1351d147b3d6SMark Fasheh status = 0; 1352d147b3d6SMark Fasheh goto bail; 1353d147b3d6SMark Fasheh } 1354d147b3d6SMark Fasheh if (option < 0) 1355d147b3d6SMark Fasheh return 0; 1356d147b3d6SMark Fasheh if (option == 0) 13572b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1358d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1359d147b3d6SMark Fasheh break; 13602fbe8d1eSSunil Mushran case Opt_localalloc: 13612fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 13622fbe8d1eSSunil Mushran status = 0; 13632fbe8d1eSSunil Mushran goto bail; 13642fbe8d1eSSunil Mushran } 136573c8a800SMark Fasheh if (option >= 0) 13662fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 13672fbe8d1eSSunil Mushran break; 136853fc622bSMark Fasheh case Opt_localflocks: 136953fc622bSMark Fasheh /* 137053fc622bSMark Fasheh * Changing this during remount could race 137153fc622bSMark Fasheh * flock() requests, or "unbalance" existing 137253fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 137353fc622bSMark Fasheh * dropped in the other). If users care enough 137453fc622bSMark Fasheh * to flip locking modes during remount, we 137553fc622bSMark Fasheh * could add a "local" flag to individual 137653fc622bSMark Fasheh * flock structures for proper tracking of 137753fc622bSMark Fasheh * state. 137853fc622bSMark Fasheh */ 137953fc622bSMark Fasheh if (!is_remount) 138053fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 138153fc622bSMark Fasheh break; 1382b61817e1SJoel Becker case Opt_stack: 1383b61817e1SJoel Becker /* Check both that the option we were passed 1384b61817e1SJoel Becker * is of the right length and that it is a proper 1385b61817e1SJoel Becker * string of the right length. 1386b61817e1SJoel Becker */ 1387b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1388b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1389b61817e1SJoel Becker (strnlen(args[0].from, 1390b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1391b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1392b61817e1SJoel Becker mlog(ML_ERROR, 1393b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1394b61817e1SJoel Becker status = 0; 1395b61817e1SJoel Becker goto bail; 1396b61817e1SJoel Becker } 1397b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1398b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1399b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 140052c303c5SMark Fasheh /* 140152c303c5SMark Fasheh * Open code the memcmp here as we don't have 140252c303c5SMark Fasheh * an osb to pass to 140352c303c5SMark Fasheh * ocfs2_userspace_stack(). 140452c303c5SMark Fasheh */ 140552c303c5SMark Fasheh if (memcmp(mopt->cluster_stack, 140652c303c5SMark Fasheh OCFS2_CLASSIC_CLUSTER_STACK, 140752c303c5SMark Fasheh OCFS2_STACK_LABEL_LEN)) 140852c303c5SMark Fasheh user_stack = 1; 1409b61817e1SJoel Becker break; 141012462f1dSJoel Becker case Opt_inode64: 141112462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 141212462f1dSJoel Becker break; 141319ece546SJan Kara case Opt_usrquota: 141419ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 141519ece546SJan Kara break; 141619ece546SJan Kara case Opt_grpquota: 141719ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 141819ece546SJan Kara break; 14197bdb0d18STristan Ye case Opt_coherency_buffered: 14207bdb0d18STristan Ye mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; 14217bdb0d18STristan Ye break; 14227bdb0d18STristan Ye case Opt_coherency_full: 14237bdb0d18STristan Ye mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; 14247bdb0d18STristan Ye break; 1425a68979b8STiger Yang case Opt_acl: 1426a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14275297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1428a68979b8STiger Yang break; 1429a68979b8STiger Yang case Opt_noacl: 14305297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1431a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1432a68979b8STiger Yang break; 1433d02f00ccSMark Fasheh case Opt_resv_level: 1434d02f00ccSMark Fasheh if (is_remount) 1435d02f00ccSMark Fasheh break; 1436d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1437d02f00ccSMark Fasheh status = 0; 1438d02f00ccSMark Fasheh goto bail; 1439d02f00ccSMark Fasheh } 1440d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1441d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1442d02f00ccSMark Fasheh mopt->resv_level = option; 1443d02f00ccSMark Fasheh break; 144483f92318SMark Fasheh case Opt_dir_resv_level: 144583f92318SMark Fasheh if (is_remount) 144683f92318SMark Fasheh break; 144783f92318SMark Fasheh if (match_int(&args[0], &option)) { 144883f92318SMark Fasheh status = 0; 144983f92318SMark Fasheh goto bail; 145083f92318SMark Fasheh } 145183f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 145283f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 145383f92318SMark Fasheh mopt->dir_resv_level = option; 145483f92318SMark Fasheh break; 14551dfeb768Salex chen case Opt_journal_async_commit: 14561dfeb768Salex chen mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT; 14571dfeb768Salex chen break; 1458912f655dSGang He case Opt_nocluster: 1459912f655dSGang He mopt->mount_opt |= OCFS2_MOUNT_NOCLUSTER; 1460912f655dSGang He break; 1461ccd979bdSMark Fasheh default: 1462ccd979bdSMark Fasheh mlog(ML_ERROR, 1463ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1464ccd979bdSMark Fasheh "or missing value\n", p); 1465ccd979bdSMark Fasheh status = 0; 1466ccd979bdSMark Fasheh goto bail; 1467ccd979bdSMark Fasheh } 1468ccd979bdSMark Fasheh } 1469ccd979bdSMark Fasheh 147052c303c5SMark Fasheh if (user_stack == 0) { 14712c442719SSunil Mushran /* Ensure only one heartbeat mode */ 147252c303c5SMark Fasheh tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | 147352c303c5SMark Fasheh OCFS2_MOUNT_HB_GLOBAL | 14742c442719SSunil Mushran OCFS2_MOUNT_HB_NONE); 14752c442719SSunil Mushran if (hweight32(tmp) != 1) { 14762c442719SSunil Mushran mlog(ML_ERROR, "Invalid heartbeat mount options\n"); 14772c442719SSunil Mushran status = 0; 14782c442719SSunil Mushran goto bail; 14792c442719SSunil Mushran } 148052c303c5SMark Fasheh } 14812c442719SSunil Mushran 1482ccd979bdSMark Fasheh status = 1; 1483ccd979bdSMark Fasheh 1484ccd979bdSMark Fasheh bail: 1485ccd979bdSMark Fasheh return status; 1486ccd979bdSMark Fasheh } 1487ccd979bdSMark Fasheh 148834c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root) 1489d550071cSSunil Mushran { 149034c80b1dSAl Viro struct ocfs2_super *osb = OCFS2_SB(root->d_sb); 1491d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1492ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1493d550071cSSunil Mushran 14942c442719SSunil Mushran if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { 14952c442719SSunil Mushran seq_printf(s, ",_netdev"); 1496d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 14972c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_LOCAL); 1498d550071cSSunil Mushran else 14992c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_GLOBAL); 15002c442719SSunil Mushran } else 15012c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_NONE); 1502d550071cSSunil Mushran 1503d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1504d550071cSSunil Mushran seq_printf(s, ",nointr"); 1505d550071cSSunil Mushran 1506d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1507d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1508d550071cSSunil Mushran else 1509d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1510d550071cSSunil Mushran 1511d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1512d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1513d550071cSSunil Mushran 1514d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1515d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 15167d0fb914SGoldwyn Rodrigues else if (opts & OCFS2_MOUNT_ERRORS_CONT) 15177d0fb914SGoldwyn Rodrigues seq_printf(s, ",errors=continue"); 1518d550071cSSunil Mushran else 1519d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1520d550071cSSunil Mushran 1521d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1522d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1523d550071cSSunil Mushran 1524d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1525d550071cSSunil Mushran 1526d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1527d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1528d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1529d147b3d6SMark Fasheh 1530ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15316b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1532ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15332fbe8d1eSSunil Mushran 153453fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 153553fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 153653fc622bSMark Fasheh 1537b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1538a068acf2SKees Cook seq_show_option_n(s, "cluster_stack", osb->osb_cluster_stack, 1539a068acf2SKees Cook OCFS2_STACK_LABEL_LEN); 154019ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 154119ece546SJan Kara seq_printf(s, ",usrquota"); 154219ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 154319ece546SJan Kara seq_printf(s, ",grpquota"); 1544b61817e1SJoel Becker 15457bdb0d18STristan Ye if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) 15467bdb0d18STristan Ye seq_printf(s, ",coherency=buffered"); 15477bdb0d18STristan Ye else 15487bdb0d18STristan Ye seq_printf(s, ",coherency=full"); 15497bdb0d18STristan Ye 1550b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1551b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1552b0f73cfcSSunil Mushran else 1553b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1554b0f73cfcSSunil Mushran 155512462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 155612462f1dSJoel Becker seq_printf(s, ",inode64"); 155712462f1dSJoel Becker 1558a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1559a68979b8STiger Yang seq_printf(s, ",acl"); 1560a68979b8STiger Yang else 1561a68979b8STiger Yang seq_printf(s, ",noacl"); 1562a68979b8STiger Yang 1563d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1564d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1565d02f00ccSMark Fasheh 156683f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 156783f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 156883f92318SMark Fasheh 15691dfeb768Salex chen if (opts & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 15701dfeb768Salex chen seq_printf(s, ",journal_async_commit"); 15711dfeb768Salex chen 1572912f655dSGang He if (opts & OCFS2_MOUNT_NOCLUSTER) 1573912f655dSGang He seq_printf(s, ",nocluster"); 1574912f655dSGang He 1575d550071cSSunil Mushran return 0; 1576d550071cSSunil Mushran } 1577d550071cSSunil Mushran 1578ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1579ccd979bdSMark Fasheh { 1580c18ceab0SWengang Wang int status; 1581a11f7e63SMark Fasheh 1582ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1583342827d7SAl Viro if (status < 0) 1584342827d7SAl Viro goto out1; 1585ccd979bdSMark Fasheh 1586ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1587342827d7SAl Viro if (status < 0) 1588342827d7SAl Viro goto out2; 1589ccd979bdSMark Fasheh 1590ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1591ccd979bdSMark Fasheh 159263e0c48aSJoel Becker ocfs2_set_locking_protocol(); 159363e0c48aSJoel Becker 15949e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1595342827d7SAl Viro if (status < 0) 159635ddf78eSjiangyiwen goto out3; 1597342827d7SAl Viro status = register_filesystem(&ocfs2_fs_type); 1598342827d7SAl Viro if (!status) 1599342827d7SAl Viro return 0; 1600ccd979bdSMark Fasheh 1601342827d7SAl Viro unregister_quota_format(&ocfs2_quota_format); 1602342827d7SAl Viro out3: 160335ddf78eSjiangyiwen debugfs_remove(ocfs2_debugfs_root); 1604342827d7SAl Viro ocfs2_free_mem_caches(); 1605342827d7SAl Viro out2: 1606342827d7SAl Viro exit_ocfs2_uptodate_cache(); 1607342827d7SAl Viro out1: 1608342827d7SAl Viro mlog_errno(status); 1609342827d7SAl Viro return status; 1610ccd979bdSMark Fasheh } 1611ccd979bdSMark Fasheh 1612ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1613ccd979bdSMark Fasheh { 16149e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 16159e33d69fSJan Kara 1616ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1617ccd979bdSMark Fasheh 1618ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1619ccd979bdSMark Fasheh 1620ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1621ccd979bdSMark Fasheh 1622ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1623ccd979bdSMark Fasheh } 1624ccd979bdSMark Fasheh 1625ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1626ccd979bdSMark Fasheh { 162732a42d39STao Ma trace_ocfs2_put_super(sb); 1628ccd979bdSMark Fasheh 1629ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1630ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1631ccd979bdSMark Fasheh } 1632ccd979bdSMark Fasheh 1633726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1634ccd979bdSMark Fasheh { 1635ccd979bdSMark Fasheh struct ocfs2_super *osb; 1636ccd979bdSMark Fasheh u32 numbits, freebits; 1637ccd979bdSMark Fasheh int status; 1638ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1639ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1640ccd979bdSMark Fasheh struct inode *inode = NULL; 1641ccd979bdSMark Fasheh 164232a42d39STao Ma trace_ocfs2_statfs(dentry->d_sb, buf); 1643ccd979bdSMark Fasheh 1644726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1645ccd979bdSMark Fasheh 1646ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1647ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1648ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1649ccd979bdSMark Fasheh if (!inode) { 1650ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1651ccd979bdSMark Fasheh status = -EIO; 1652ccd979bdSMark Fasheh goto bail; 1653ccd979bdSMark Fasheh } 1654ccd979bdSMark Fasheh 1655e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1656ccd979bdSMark Fasheh if (status < 0) { 1657ccd979bdSMark Fasheh mlog_errno(status); 1658ccd979bdSMark Fasheh goto bail; 1659ccd979bdSMark Fasheh } 1660ccd979bdSMark Fasheh 1661ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1662ccd979bdSMark Fasheh 1663ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1664ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1665ccd979bdSMark Fasheh 1666ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1667726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1668ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1669ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1670ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1671ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1672ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1673ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1674ccd979bdSMark Fasheh buf->f_files = numbits; 1675ccd979bdSMark Fasheh buf->f_ffree = freebits; 1676837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1677837711f8SColy Li & 0xFFFFFFFFUL; 1678837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1679837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1680ccd979bdSMark Fasheh 1681ccd979bdSMark Fasheh brelse(bh); 1682ccd979bdSMark Fasheh 1683e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1684ccd979bdSMark Fasheh status = 0; 1685ccd979bdSMark Fasheh bail: 1686ccd979bdSMark Fasheh iput(inode); 1687ccd979bdSMark Fasheh 1688c1e8d35eSTao Ma if (status) 1689c1e8d35eSTao Ma mlog_errno(status); 1690ccd979bdSMark Fasheh 1691ccd979bdSMark Fasheh return status; 1692ccd979bdSMark Fasheh } 1693ccd979bdSMark Fasheh 169451cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1695ccd979bdSMark Fasheh { 1696ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1697ccd979bdSMark Fasheh 1698ccd979bdSMark Fasheh oi->ip_flags = 0; 1699ccd979bdSMark Fasheh oi->ip_open_count = 0; 1700ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 170183418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1702ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 17034506cfb6SRyan Ding INIT_LIST_HEAD(&oi->ip_unwritten_list); 1704ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1705ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1706cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1707251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1708ccd979bdSMark Fasheh 1709ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1710ccd979bdSMark Fasheh oi->ip_clusters = 0; 1711f5785283SWengang Wang oi->ip_next_orphan = NULL; 1712ccd979bdSMark Fasheh 17134fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 17144fe370afSMark Fasheh 1715ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1716e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 171750008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1718ccd979bdSMark Fasheh 17198cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 17206e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1721ccd979bdSMark Fasheh 1722ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1723ccd979bdSMark Fasheh } 1724ccd979bdSMark Fasheh 1725ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1726ccd979bdSMark Fasheh { 1727ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1728ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1729fffb60f9SPaul Jackson 0, 1730fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17315d097056SVladimir Davydov SLAB_MEM_SPREAD|SLAB_ACCOUNT), 173220c2df83SPaul Mundt ocfs2_inode_init_once); 17339e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17349e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17359e33d69fSJan Kara 0, 17369e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17379e33d69fSJan Kara SLAB_MEM_SPREAD), 17389e33d69fSJan Kara NULL); 17399e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17409e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17419e33d69fSJan Kara 0, 17429e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 17439e33d69fSJan Kara NULL); 17449e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 17459e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 17469e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 17479e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17489e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1749ccd979bdSMark Fasheh return -ENOMEM; 17509e33d69fSJan Kara } 1751ccd979bdSMark Fasheh 1752ccd979bdSMark Fasheh return 0; 1753ccd979bdSMark Fasheh } 1754ccd979bdSMark Fasheh 1755ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1756ccd979bdSMark Fasheh { 17578c0a8537SKirill A. Shutemov /* 17588c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 17598c0a8537SKirill A. Shutemov * destroy cache. 17608c0a8537SKirill A. Shutemov */ 17618c0a8537SKirill A. Shutemov rcu_barrier(); 1762ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1763ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 17649e33d69fSJan Kara 17659e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17669e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 17679e33d69fSJan Kara 17689e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 17699e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1770ccd979bdSMark Fasheh } 1771ccd979bdSMark Fasheh 1772ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1773ccd979bdSMark Fasheh struct buffer_head **bh, 1774ccd979bdSMark Fasheh int block, 1775ccd979bdSMark Fasheh int sect_size) 1776ccd979bdSMark Fasheh { 1777ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1778ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1779ccd979bdSMark Fasheh return -EIO; 1780ccd979bdSMark Fasheh } 1781ccd979bdSMark Fasheh 1782ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1783ccd979bdSMark Fasheh if (!*bh) { 17847391a294SRui Xiang mlog_errno(-ENOMEM); 17857391a294SRui Xiang return -ENOMEM; 1786ccd979bdSMark Fasheh } 1787ccd979bdSMark Fasheh lock_buffer(*bh); 1788ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1789ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1790ccd979bdSMark Fasheh unlock_buffer(*bh); 1791dfec8a14SMike Christie ll_rw_block(REQ_OP_READ, 0, 1, bh); 1792ccd979bdSMark Fasheh wait_on_buffer(*bh); 179328d57d43Swengang wang if (!buffer_uptodate(*bh)) { 179428d57d43Swengang wang mlog_errno(-EIO); 179528d57d43Swengang wang brelse(*bh); 179628d57d43Swengang wang *bh = NULL; 179728d57d43Swengang wang return -EIO; 179828d57d43Swengang wang } 179928d57d43Swengang wang 1800ccd979bdSMark Fasheh return 0; 1801ccd979bdSMark Fasheh } 1802ccd979bdSMark Fasheh 1803ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1804ccd979bdSMark Fasheh { 1805ccd979bdSMark Fasheh int status = 0; 1806ccd979bdSMark Fasheh int unlock_super = 0; 1807ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1808ccd979bdSMark Fasheh 1809ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1810ccd979bdSMark Fasheh goto leave; 1811ccd979bdSMark Fasheh 18125500ab4eSGang He mutex_init(&osb->obs_trim_fs_mutex); 18135500ab4eSGang He 1814ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1815ccd979bdSMark Fasheh if (status < 0) { 1816ccd979bdSMark Fasheh mlog_errno(status); 1817a52370b3SGang He if (status == -EBADR && ocfs2_userspace_stack(osb)) 1818a52370b3SGang He mlog(ML_ERROR, "couldn't mount because cluster name on" 1819a52370b3SGang He " disk does not match the running cluster name.\n"); 1820ccd979bdSMark Fasheh goto leave; 1821ccd979bdSMark Fasheh } 1822ccd979bdSMark Fasheh 1823ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1824ccd979bdSMark Fasheh if (status < 0) { 1825ccd979bdSMark Fasheh mlog_errno(status); 1826ccd979bdSMark Fasheh goto leave; 1827ccd979bdSMark Fasheh } 1828ccd979bdSMark Fasheh unlock_super = 1; 1829ccd979bdSMark Fasheh 1830ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1831ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1832ccd979bdSMark Fasheh if (status < 0) { 1833ccd979bdSMark Fasheh mlog_errno(status); 1834ccd979bdSMark Fasheh goto leave; 1835ccd979bdSMark Fasheh } 1836ccd979bdSMark Fasheh 1837ccd979bdSMark Fasheh /* load all node-local system inodes */ 1838ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1839ccd979bdSMark Fasheh if (status < 0) { 1840ccd979bdSMark Fasheh mlog_errno(status); 1841ccd979bdSMark Fasheh goto leave; 1842ccd979bdSMark Fasheh } 1843ccd979bdSMark Fasheh 1844ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1845ccd979bdSMark Fasheh if (status < 0) { 1846ccd979bdSMark Fasheh mlog_errno(status); 1847ccd979bdSMark Fasheh goto leave; 1848ccd979bdSMark Fasheh } 1849ccd979bdSMark Fasheh 1850ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 185106c59bb8STao Ma if (status < 0) 1852ccd979bdSMark Fasheh mlog_errno(status); 1853c271c5c2SSunil Mushran 1854ccd979bdSMark Fasheh leave: 1855ccd979bdSMark Fasheh if (unlock_super) 1856ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1857ccd979bdSMark Fasheh 1858ccd979bdSMark Fasheh return status; 1859ccd979bdSMark Fasheh } 1860ccd979bdSMark Fasheh 1861ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1862ccd979bdSMark Fasheh { 1863286eaa95SJoel Becker int tmp, hangup_needed = 0; 1864ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 186599d7a882SGoldwyn Rodrigues char nodestr[12]; 1866ccd979bdSMark Fasheh 186732a42d39STao Ma trace_ocfs2_dismount_volume(sb); 1868ccd979bdSMark Fasheh 1869ccd979bdSMark Fasheh BUG_ON(!sb); 1870ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1871ccd979bdSMark Fasheh BUG_ON(!osb); 1872ccd979bdSMark Fasheh 18735f483c4aSGang He /* Remove file check sysfs related directores/files, 18745f483c4aSGang He * and wait for the pending file check operations */ 18755f483c4aSGang He ocfs2_filecheck_remove_sysfs(osb); 18765f483c4aSGang He 18775f483c4aSGang He kset_unregister(osb->osb_dev_kset); 18785f483c4aSGang He 1879692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1880692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1881692684e1SSunil Mushran 188219ece546SJan Kara ocfs2_disable_quotas(osb); 188319ece546SJan Kara 1884e3a767b6SJan Kara /* All dquots should be freed by now */ 1885e3a767b6SJan Kara WARN_ON(!llist_empty(&osb->dquot_drop_list)); 1886e3a767b6SJan Kara /* Wait for worker to be done with the work structure in osb */ 1887e3a767b6SJan Kara cancel_work_sync(&osb->dquot_drop_work); 1888e3a767b6SJan Kara 1889ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1890ccd979bdSMark Fasheh 1891b253bfd8SXue jiufei ocfs2_truncate_log_shutdown(osb); 1892b253bfd8SXue jiufei 1893553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1894553abd04SJoel Becker ocfs2_recovery_exit(osb); 1895ccd979bdSMark Fasheh 1896ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1897ccd979bdSMark Fasheh 1898374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1899374a263eSTao Ma 19004670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 19014670c46dSJoel Becker * all the steps which depended on that to complete. */ 19024670c46dSJoel Becker if (osb->cconn) { 1903ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1904ccd979bdSMark Fasheh if (tmp < 0) { 1905ccd979bdSMark Fasheh mlog_errno(tmp); 1906ccd979bdSMark Fasheh return; 1907ccd979bdSMark Fasheh } 190819b613d4SMark Fasheh } 1909ccd979bdSMark Fasheh 1910ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1911ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1912ccd979bdSMark Fasheh 19134670c46dSJoel Becker if (osb->cconn) 1914ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1915ccd979bdSMark Fasheh 1916ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1917ccd979bdSMark Fasheh 1918da5e7c87SValentin Vidic ocfs2_journal_shutdown(osb); 1919da5e7c87SValentin Vidic 19206953b4c0SJoel Becker /* 19216953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19226953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19236953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19246953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19256953b4c0SJoel Becker */ 192603efed8aSTiger Yang if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str && 192703efed8aSTiger Yang !ocfs2_is_hard_readonly(osb)) 1928286eaa95SJoel Becker hangup_needed = 1; 1929286eaa95SJoel Becker 1930286eaa95SJoel Becker if (osb->cconn) 1931286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1932286eaa95SJoel Becker 193373be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 19345e7a3ed9SGreg Kroah-Hartman debugfs_remove_recursive(osb->osb_debug_root); 1935286eaa95SJoel Becker 1936286eaa95SJoel Becker if (hangup_needed) 19376953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1938ccd979bdSMark Fasheh 1939ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1940ccd979bdSMark Fasheh 1941c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1942c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1943c271c5c2SSunil Mushran else 194419fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1945c271c5c2SSunil Mushran 1946c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1947c271c5c2SSunil Mushran osb->dev_str, nodestr); 1948ccd979bdSMark Fasheh 1949ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1950ccd979bdSMark Fasheh kfree(osb); 1951ccd979bdSMark Fasheh sb->s_dev = 0; 1952ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1953ccd979bdSMark Fasheh } 1954ccd979bdSMark Fasheh 1955ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1956ccd979bdSMark Fasheh unsigned uuid_bytes) 1957ccd979bdSMark Fasheh { 1958ccd979bdSMark Fasheh int i, ret; 1959ccd979bdSMark Fasheh char *ptr; 1960ccd979bdSMark Fasheh 1961ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1962ccd979bdSMark Fasheh 1963cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1964ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1965ccd979bdSMark Fasheh return -ENOMEM; 1966ccd979bdSMark Fasheh 1967ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1968ccd979bdSMark Fasheh /* print with null */ 1969ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1970ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1971ccd979bdSMark Fasheh return -EINVAL; 1972ccd979bdSMark Fasheh /* then only advance past the last char */ 1973ccd979bdSMark Fasheh ptr += 2; 1974ccd979bdSMark Fasheh } 1975ccd979bdSMark Fasheh 1976ccd979bdSMark Fasheh return 0; 1977ccd979bdSMark Fasheh } 1978ccd979bdSMark Fasheh 19793bdb8efdSPatrick J. LoPresti /* Make sure entire volume is addressable by our journal. Requires 19803bdb8efdSPatrick J. LoPresti osb_clusters_at_boot to be valid and for the journal to have been 19813bdb8efdSPatrick J. LoPresti initialized by ocfs2_journal_init(). */ 19823bdb8efdSPatrick J. LoPresti static int ocfs2_journal_addressable(struct ocfs2_super *osb) 19833bdb8efdSPatrick J. LoPresti { 19843bdb8efdSPatrick J. LoPresti int status = 0; 19853bdb8efdSPatrick J. LoPresti u64 max_block = 19863bdb8efdSPatrick J. LoPresti ocfs2_clusters_to_blocks(osb->sb, 19873bdb8efdSPatrick J. LoPresti osb->osb_clusters_at_boot) - 1; 19883bdb8efdSPatrick J. LoPresti 19893bdb8efdSPatrick J. LoPresti /* 32-bit block number is always OK. */ 19903bdb8efdSPatrick J. LoPresti if (max_block <= (u32)~0ULL) 19913bdb8efdSPatrick J. LoPresti goto out; 19923bdb8efdSPatrick J. LoPresti 19933bdb8efdSPatrick J. LoPresti /* Volume is "huge", so see if our journal is new enough to 19943bdb8efdSPatrick J. LoPresti support it. */ 19953bdb8efdSPatrick J. LoPresti if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, 19963bdb8efdSPatrick J. LoPresti OCFS2_FEATURE_COMPAT_JBD2_SB) && 19973bdb8efdSPatrick J. LoPresti jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, 19983bdb8efdSPatrick J. LoPresti JBD2_FEATURE_INCOMPAT_64BIT))) { 19993bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "The journal cannot address the entire volume. " 20003bdb8efdSPatrick J. LoPresti "Enable the 'block64' journal option with tunefs.ocfs2"); 20013bdb8efdSPatrick J. LoPresti status = -EFBIG; 20023bdb8efdSPatrick J. LoPresti goto out; 20033bdb8efdSPatrick J. LoPresti } 20043bdb8efdSPatrick J. LoPresti 20053bdb8efdSPatrick J. LoPresti out: 20063bdb8efdSPatrick J. LoPresti return status; 20073bdb8efdSPatrick J. LoPresti } 20083bdb8efdSPatrick J. LoPresti 2009ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 2010ccd979bdSMark Fasheh struct buffer_head *bh, 201173be192bSJoel Becker int sector_size, 201273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2013ccd979bdSMark Fasheh { 2014bddb8eb3SDenis Cheng int status; 20155a254031SMark Fasheh int i, cbits, bbits; 20165a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2017ccd979bdSMark Fasheh struct inode *inode = NULL; 2018ccd979bdSMark Fasheh struct ocfs2_super *osb; 20193bdb8efdSPatrick J. LoPresti u64 total_blocks; 2020ccd979bdSMark Fasheh 2021cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2022ccd979bdSMark Fasheh if (!osb) { 2023ccd979bdSMark Fasheh status = -ENOMEM; 2024ccd979bdSMark Fasheh mlog_errno(status); 2025*a8a986dbSHeming Zhao via Ocfs2-devel goto out; 2026ccd979bdSMark Fasheh } 2027ccd979bdSMark Fasheh 2028ccd979bdSMark Fasheh sb->s_fs_info = osb; 2029ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2030ba87167cSAl Viro sb->s_d_op = &ocfs2_dentry_ops; 2031ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 2032664dbd5fSJan Kara sb->s_qcop = &dquot_quotactl_sysfile_ops; 203319ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 20341c92ec67SJan Kara sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP; 2035cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2036e0dceaf0SMark Fasheh sb->s_time_gran = 1; 20371751e8a6SLinus Torvalds sb->s_flags |= SB_NOATIME; 2038ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20395a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20405a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20415a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 204285787090SChristoph Hellwig memcpy(&sb->s_uuid, di->id2.i_super.s_uuid, 204358be19dcSVladimir Davydov sizeof(di->id2.i_super.s_uuid)); 2044ccd979bdSMark Fasheh 20459b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20469b7895efSMark Fasheh 20479b7895efSMark Fasheh for (i = 0; i < 3; i++) 20489b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 20499b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 20509b7895efSMark Fasheh 2051ccd979bdSMark Fasheh osb->sb = sb; 2052ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2053ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2054ccd979bdSMark Fasheh 205534d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 205634d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 205734d024f8SMark Fasheh osb->dc_work_sequence = 0; 205834d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2059ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2060ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2061ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2062c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2063b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2064ccd979bdSMark Fasheh 206543b10a20Sjiangyiwen mutex_init(&osb->system_file_mutex); 206643b10a20Sjiangyiwen 2067ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2068ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2069ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2070ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2071ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2072ccd979bdSMark Fasheh 207373be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 207473be192bSJoel Becker osb->osb_ecc_stats = *stats; 207573be192bSJoel Becker 2076ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2077ccd979bdSMark Fasheh 2078ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2079ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2080ccd979bdSMark Fasheh 208175d9bbc7SGoldwyn Rodrigues osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 208275d9bbc7SGoldwyn Rodrigues if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 208375d9bbc7SGoldwyn Rodrigues mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 208475d9bbc7SGoldwyn Rodrigues osb->max_slots); 208575d9bbc7SGoldwyn Rodrigues status = -EINVAL; 2086*a8a986dbSHeming Zhao via Ocfs2-devel goto out; 208775d9bbc7SGoldwyn Rodrigues } 208875d9bbc7SGoldwyn Rodrigues 20898b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 20908b712cd5SJeff Mahoney 2091553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2092553abd04SJoel Becker if (status) { 2093553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2094553abd04SJoel Becker mlog_errno(status); 2095*a8a986dbSHeming Zhao via Ocfs2-devel goto out; 2096553abd04SJoel Becker } 2097ccd979bdSMark Fasheh 2098ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2099ccd979bdSMark Fasheh 21007f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 21017f1a37e3STiger Yang 2102ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2103ccd979bdSMark Fasheh 21048154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 21058154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2106fdd77704STiger Yang 2107ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2108ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 21099c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2110ccd979bdSMark Fasheh 2111ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2112ccd979bdSMark Fasheh 211354bd3f7cSHeming Zhao via Ocfs2-devel ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2114d02f00ccSMark Fasheh 2115ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2116ccd979bdSMark Fasheh if (!osb->vol_label) { 2117ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2118ccd979bdSMark Fasheh status = -ENOMEM; 2119*a8a986dbSHeming Zhao via Ocfs2-devel goto out_recovery_map; 2120ccd979bdSMark Fasheh } 2121ccd979bdSMark Fasheh 2122539d8264SSunil Mushran osb->slot_recovery_generations = 2123539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2124539d8264SSunil Mushran GFP_KERNEL); 2125539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2126539d8264SSunil Mushran status = -ENOMEM; 2127539d8264SSunil Mushran mlog_errno(status); 2128*a8a986dbSHeming Zhao via Ocfs2-devel goto out_vol_label; 2129539d8264SSunil Mushran } 2130539d8264SSunil Mushran 2131b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2132b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2133b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2134b4df6ed8SMark Fasheh GFP_KERNEL); 2135b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2136b4df6ed8SMark Fasheh status = -ENOMEM; 2137b4df6ed8SMark Fasheh mlog_errno(status); 2138*a8a986dbSHeming Zhao via Ocfs2-devel goto out_slot_recovery_gen; 2139b4df6ed8SMark Fasheh } 2140b4df6ed8SMark Fasheh 2141374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2142374a263eSTao Ma 2143ccd979bdSMark Fasheh osb->s_feature_compat = 2144ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2145ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2146ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2147ccd979bdSMark Fasheh osb->s_feature_incompat = 2148ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2149ccd979bdSMark Fasheh 2150ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2151ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2152ccd979bdSMark Fasheh "optional features (%x).\n", i); 2153ccd979bdSMark Fasheh status = -EINVAL; 2154*a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2155ccd979bdSMark Fasheh } 2156bc98a42cSDavid Howells if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2157ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2158ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2159ccd979bdSMark Fasheh status = -EINVAL; 2160*a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2161ccd979bdSMark Fasheh } 2162ccd979bdSMark Fasheh 216398f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 2164b15fa922SValentin Vidic /* 2165b15fa922SValentin Vidic * ci_stack and ci_cluster in ocfs2_cluster_info may not be null 2166b15fa922SValentin Vidic * terminated, so make sure no overflow happens here by using 2167b15fa922SValentin Vidic * memcpy. Destination strings will always be null terminated 2168b15fa922SValentin Vidic * because osb is allocated using kzalloc. 2169b15fa922SValentin Vidic */ 217098f486f2SSunil Mushran osb->osb_stackflags = 217198f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2172b15fa922SValentin Vidic memcpy(osb->osb_cluster_stack, 2173b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2174b15fa922SValentin Vidic OCFS2_STACK_LABEL_LEN); 2175b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2176b61817e1SJoel Becker mlog(ML_ERROR, 2177b61817e1SJoel Becker "couldn't mount because of an invalid " 2178b61817e1SJoel Becker "cluster stack label (%s) \n", 2179b61817e1SJoel Becker osb->osb_cluster_stack); 2180b61817e1SJoel Becker status = -EINVAL; 2181*a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2182b61817e1SJoel Becker } 2183b15fa922SValentin Vidic memcpy(osb->osb_cluster_name, 2184c74a3bddSGoldwyn Rodrigues OCFS2_RAW_SB(di)->s_cluster_info.ci_cluster, 2185b15fa922SValentin Vidic OCFS2_CLUSTER_NAME_LEN); 2186b61817e1SJoel Becker } else { 2187b61817e1SJoel Becker /* The empty string is identical with classic tools that 2188b61817e1SJoel Becker * don't know about s_cluster_info. */ 2189b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2190b61817e1SJoel Becker } 2191b61817e1SJoel Becker 2192ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2193ccd979bdSMark Fasheh 2194bb20b31dSHeming Zhao via Ocfs2-devel /* 2195bb20b31dSHeming Zhao via Ocfs2-devel * FIXME 2196bb20b31dSHeming Zhao via Ocfs2-devel * This should be done in ocfs2_journal_init(), but any inode 2197bb20b31dSHeming Zhao via Ocfs2-devel * writes back operation will cause the filesystem to crash. 2198bb20b31dSHeming Zhao via Ocfs2-devel */ 2199bb20b31dSHeming Zhao via Ocfs2-devel status = ocfs2_journal_alloc(osb); 2200bb20b31dSHeming Zhao via Ocfs2-devel if (status < 0) 2201*a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2202bb20b31dSHeming Zhao via Ocfs2-devel 2203e3a767b6SJan Kara INIT_WORK(&osb->dquot_drop_work, ocfs2_drop_dquot_refs); 2204e3a767b6SJan Kara init_llist_head(&osb->dquot_drop_list); 2205e3a767b6SJan Kara 2206ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2207ccd979bdSMark Fasheh osb->s_clustersize_bits = 2208ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2209ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2210ccd979bdSMark Fasheh 2211ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2212ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2213ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2214ccd979bdSMark Fasheh osb->s_clustersize); 2215ccd979bdSMark Fasheh status = -EINVAL; 2216*a8a986dbSHeming Zhao via Ocfs2-devel goto out_journal; 2217ccd979bdSMark Fasheh } 2218ccd979bdSMark Fasheh 22193bdb8efdSPatrick J. LoPresti total_blocks = ocfs2_clusters_to_blocks(osb->sb, 22203bdb8efdSPatrick J. LoPresti le32_to_cpu(di->i_clusters)); 22213bdb8efdSPatrick J. LoPresti 22223bdb8efdSPatrick J. LoPresti status = generic_check_addressable(osb->sb->s_blocksize_bits, 22233bdb8efdSPatrick J. LoPresti total_blocks); 22243bdb8efdSPatrick J. LoPresti if (status) { 22253bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "Volume too large " 22263bdb8efdSPatrick J. LoPresti "to mount safely on this system"); 22273bdb8efdSPatrick J. LoPresti status = -EFBIG; 2228*a8a986dbSHeming Zhao via Ocfs2-devel goto out_journal; 2229ccd979bdSMark Fasheh } 2230ccd979bdSMark Fasheh 2231ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2232ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2233ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2234ccd979bdSMark Fasheh status = -ENOMEM; 2235*a8a986dbSHeming Zhao via Ocfs2-devel goto out_journal; 2236ccd979bdSMark Fasheh } 2237ccd979bdSMark Fasheh 223869201bb1SFabian Frederick strlcpy(osb->vol_label, di->id2.i_super.s_label, 223969201bb1SFabian Frederick OCFS2_MAX_VOL_LABEL_LEN); 2240ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2241ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2242ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2243ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2244ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2245cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 224632a42d39STao Ma trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, 2247b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 224832a42d39STao Ma (unsigned long long)osb->system_dir_blkno, 224932a42d39STao Ma osb->s_clustersize_bits); 2250ccd979bdSMark Fasheh 2251ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2252ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2253ccd979bdSMark Fasheh status = -ENOMEM; 2254ccd979bdSMark Fasheh mlog_errno(status); 2255*a8a986dbSHeming Zhao via Ocfs2-devel goto out_uuid_str; 2256ccd979bdSMark Fasheh } 2257ccd979bdSMark Fasheh 2258ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2259ccd979bdSMark Fasheh 2260ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2261ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2262ccd979bdSMark Fasheh if (status < 0) { 2263ccd979bdSMark Fasheh mlog_errno(status); 2264*a8a986dbSHeming Zhao via Ocfs2-devel goto out_dlm_out; 2265ccd979bdSMark Fasheh } 2266ccd979bdSMark Fasheh 2267ccd979bdSMark Fasheh /* 2268ccd979bdSMark Fasheh * global bitmap 2269ccd979bdSMark Fasheh */ 2270ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2271ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2272ccd979bdSMark Fasheh if (!inode) { 2273ccd979bdSMark Fasheh status = -EINVAL; 2274ccd979bdSMark Fasheh mlog_errno(status); 2275*a8a986dbSHeming Zhao via Ocfs2-devel goto out_system_inodes; 2276ccd979bdSMark Fasheh } 2277ccd979bdSMark Fasheh 2278ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 22796b82021bSMark Fasheh osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; 2280ccd979bdSMark Fasheh iput(inode); 2281ccd979bdSMark Fasheh 22828571882cSTao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, 22838571882cSTao Ma osb->s_feature_incompat) * 8; 2284ccd979bdSMark Fasheh 2285ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2286ccd979bdSMark Fasheh if (status < 0) { 2287ccd979bdSMark Fasheh mlog_errno(status); 2288*a8a986dbSHeming Zhao via Ocfs2-devel goto out_system_inodes; 2289ccd979bdSMark Fasheh } 2290ccd979bdSMark Fasheh 229144be9756SBhaktipriya Shridhar osb->ocfs2_wq = alloc_ordered_workqueue("ocfs2_wq", WQ_MEM_RECLAIM); 229235ddf78eSjiangyiwen if (!osb->ocfs2_wq) { 229335ddf78eSjiangyiwen status = -ENOMEM; 229435ddf78eSjiangyiwen mlog_errno(status); 2295*a8a986dbSHeming Zhao via Ocfs2-devel goto out_slot_info; 229635ddf78eSjiangyiwen } 229735ddf78eSjiangyiwen 2298*a8a986dbSHeming Zhao via Ocfs2-devel return status; 2299*a8a986dbSHeming Zhao via Ocfs2-devel 2300*a8a986dbSHeming Zhao via Ocfs2-devel out_slot_info: 2301*a8a986dbSHeming Zhao via Ocfs2-devel ocfs2_free_slot_info(osb); 2302*a8a986dbSHeming Zhao via Ocfs2-devel out_system_inodes: 2303*a8a986dbSHeming Zhao via Ocfs2-devel ocfs2_release_system_inodes(osb); 2304*a8a986dbSHeming Zhao via Ocfs2-devel out_dlm_out: 2305*a8a986dbSHeming Zhao via Ocfs2-devel ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2306*a8a986dbSHeming Zhao via Ocfs2-devel out_uuid_str: 2307*a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->uuid_str); 2308*a8a986dbSHeming Zhao via Ocfs2-devel out_journal: 2309*a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->journal); 2310*a8a986dbSHeming Zhao via Ocfs2-devel out_orphan_wipes: 2311*a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->osb_orphan_wipes); 2312*a8a986dbSHeming Zhao via Ocfs2-devel out_slot_recovery_gen: 2313*a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->slot_recovery_generations); 2314*a8a986dbSHeming Zhao via Ocfs2-devel out_vol_label: 2315*a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->vol_label); 2316*a8a986dbSHeming Zhao via Ocfs2-devel out_recovery_map: 2317*a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->recovery_map); 2318*a8a986dbSHeming Zhao via Ocfs2-devel out: 2319*a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb); 2320*a8a986dbSHeming Zhao via Ocfs2-devel sb->s_fs_info = NULL; 2321ccd979bdSMark Fasheh return status; 2322ccd979bdSMark Fasheh } 2323ccd979bdSMark Fasheh 2324ccd979bdSMark Fasheh /* 2325ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2326ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2327ccd979bdSMark Fasheh * 0 on success 2328ccd979bdSMark Fasheh */ 2329ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2330ccd979bdSMark Fasheh struct buffer_head *bh, 233173be192bSJoel Becker u32 blksz, 233273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2333ccd979bdSMark Fasheh { 2334ccd979bdSMark Fasheh int status = -EAGAIN; 2335ccd979bdSMark Fasheh 2336ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2337ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2338d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2339d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2340d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2341d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2342d030cc97SJoel Becker bh->b_size, 234373be192bSJoel Becker &di->i_check, 234473be192bSJoel Becker stats); 2345d030cc97SJoel Becker if (status) 2346d030cc97SJoel Becker goto out; 2347d030cc97SJoel Becker } 2348ccd979bdSMark Fasheh status = -EINVAL; 2349ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2350ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2351ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2352ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2353ccd979bdSMark Fasheh blksz); 2354ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2355ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2356ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2357ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2358ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2359ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2360ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2361ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2362ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2363ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2364ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2365ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2366b0697053SMark Fasheh "found %llu, should be %llu\n", 23671ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2368b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2369ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2370ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2371ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2372ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2373ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2374ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2375ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2376ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2377ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2378ccd979bdSMark Fasheh mlog(ML_ERROR, 2379ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2380ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2381ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2382ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2383ccd979bdSMark Fasheh } else { 2384ccd979bdSMark Fasheh /* found it! */ 2385ccd979bdSMark Fasheh status = 0; 2386ccd979bdSMark Fasheh } 2387ccd979bdSMark Fasheh } 2388ccd979bdSMark Fasheh 2389d030cc97SJoel Becker out: 2390c1e8d35eSTao Ma if (status && status != -EAGAIN) 2391c1e8d35eSTao Ma mlog_errno(status); 2392ccd979bdSMark Fasheh return status; 2393ccd979bdSMark Fasheh } 2394ccd979bdSMark Fasheh 2395ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2396ccd979bdSMark Fasheh { 2397bddb8eb3SDenis Cheng int status; 2398ccd979bdSMark Fasheh int dirty; 2399c271c5c2SSunil Mushran int local; 2400ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2401ccd979bdSMark Fasheh * recover 2402ccd979bdSMark Fasheh * ourselves. */ 2403ccd979bdSMark Fasheh 2404ccd979bdSMark Fasheh /* Init our journal object. */ 2405da5e7c87SValentin Vidic status = ocfs2_journal_init(osb, &dirty); 2406ccd979bdSMark Fasheh if (status < 0) { 2407ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2408ccd979bdSMark Fasheh goto finally; 2409ccd979bdSMark Fasheh } 2410ccd979bdSMark Fasheh 24113bdb8efdSPatrick J. LoPresti /* Now that journal has been initialized, check to make sure 24123bdb8efdSPatrick J. LoPresti entire volume is addressable. */ 24133bdb8efdSPatrick J. LoPresti status = ocfs2_journal_addressable(osb); 24143bdb8efdSPatrick J. LoPresti if (status) 24153bdb8efdSPatrick J. LoPresti goto finally; 24163bdb8efdSPatrick J. LoPresti 2417ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2418ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2419ccd979bdSMark Fasheh * dirty work for us :) */ 2420ccd979bdSMark Fasheh if (!dirty) { 2421ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2422ccd979bdSMark Fasheh if (status < 0) { 2423ccd979bdSMark Fasheh mlog_errno(status); 2424ccd979bdSMark Fasheh goto finally; 2425ccd979bdSMark Fasheh } 2426ccd979bdSMark Fasheh } else { 2427619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: File system on device (%s) was not " 2428619c200dSSunil Mushran "unmounted cleanly, recovering it.\n", osb->dev_str); 2429ccd979bdSMark Fasheh } 2430ccd979bdSMark Fasheh 2431c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2432c271c5c2SSunil Mushran 2433ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2434539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 243501af4820SWengang Wang if (status < 0) { 243601af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 243701af4820SWengang Wang goto finally; 243801af4820SWengang Wang } 2439ccd979bdSMark Fasheh 24401dfeb768Salex chen if (osb->s_mount_opt & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 24411dfeb768Salex chen jbd2_journal_set_features(osb->journal->j_journal, 24421dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24431dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24441dfeb768Salex chen else 24451dfeb768Salex chen jbd2_journal_clear_features(osb->journal->j_journal, 24461dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24471dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24481dfeb768Salex chen 2449ccd979bdSMark Fasheh if (dirty) { 2450ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2451ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2452ccd979bdSMark Fasheh osb->slot_num, 2453ccd979bdSMark Fasheh &local_alloc); 2454ccd979bdSMark Fasheh if (status < 0) { 2455ccd979bdSMark Fasheh mlog_errno(status); 2456ccd979bdSMark Fasheh goto finally; 2457ccd979bdSMark Fasheh } 2458ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2459ccd979bdSMark Fasheh * ourselves as mounted. */ 2460ccd979bdSMark Fasheh } 2461ccd979bdSMark Fasheh 2462ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2463ccd979bdSMark Fasheh if (status < 0) { 2464ccd979bdSMark Fasheh mlog_errno(status); 2465ccd979bdSMark Fasheh goto finally; 2466ccd979bdSMark Fasheh } 2467ccd979bdSMark Fasheh 2468ccd979bdSMark Fasheh if (dirty) { 2469ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2470ccd979bdSMark Fasheh * rest of the volume. */ 2471ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2472ccd979bdSMark Fasheh local_alloc = NULL; 2473ccd979bdSMark Fasheh } 2474ccd979bdSMark Fasheh 2475ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2476ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2477ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2478ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 24799140db04SSrinivas Eeda if (status < 0) { 24809140db04SSrinivas Eeda mlog_errno(status); 24819140db04SSrinivas Eeda goto finally; 24829140db04SSrinivas Eeda } 24839140db04SSrinivas Eeda 24849140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2485ccd979bdSMark Fasheh if (status < 0) 2486ccd979bdSMark Fasheh mlog_errno(status); 2487ccd979bdSMark Fasheh 2488ccd979bdSMark Fasheh finally: 2489ccd979bdSMark Fasheh kfree(local_alloc); 2490ccd979bdSMark Fasheh 2491c1e8d35eSTao Ma if (status) 2492c1e8d35eSTao Ma mlog_errno(status); 2493ccd979bdSMark Fasheh return status; 2494ccd979bdSMark Fasheh } 2495ccd979bdSMark Fasheh 2496ccd979bdSMark Fasheh /* 2497ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2498ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2499ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2500ccd979bdSMark Fasheh * initialized resources and fileobject. 2501ccd979bdSMark Fasheh */ 2502ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2503ccd979bdSMark Fasheh { 2504ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2505ccd979bdSMark Fasheh 250635ddf78eSjiangyiwen /* ocfs2_initializer_super have already created this workqueue */ 250723e0813aSpiaojun if (osb->ocfs2_wq) 250835ddf78eSjiangyiwen destroy_workqueue(osb->ocfs2_wq); 250935ddf78eSjiangyiwen 25108e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2511ccd979bdSMark Fasheh 2512b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2513539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2514bb20b31dSHeming Zhao via Ocfs2-devel /* FIXME 2515bb20b31dSHeming Zhao via Ocfs2-devel * This belongs in journal shutdown, but because we have to 2516bb20b31dSHeming Zhao via Ocfs2-devel * allocate osb->journal at the middle of ocfs2_initialize_super(), 2517bb20b31dSHeming Zhao via Ocfs2-devel * we free it here. 2518bb20b31dSHeming Zhao via Ocfs2-devel */ 2519bb20b31dSHeming Zhao via Ocfs2-devel kfree(osb->journal); 2520ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2521ccd979bdSMark Fasheh kfree(osb->uuid_str); 2522f13a568eSJoseph Qi kfree(osb->vol_label); 2523ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2524ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2525ccd979bdSMark Fasheh } 2526ccd979bdSMark Fasheh 25277d0fb914SGoldwyn Rodrigues /* Depending on the mount option passed, perform one of the following: 25287d0fb914SGoldwyn Rodrigues * Put OCFS2 into a readonly state (default) 25297d0fb914SGoldwyn Rodrigues * Return EIO so that only the process errs 25307d0fb914SGoldwyn Rodrigues * Fix the error as if fsck.ocfs2 -y 25317d0fb914SGoldwyn Rodrigues * panic 25327d0fb914SGoldwyn Rodrigues */ 25337d0fb914SGoldwyn Rodrigues static int ocfs2_handle_error(struct super_block *sb) 2534ccd979bdSMark Fasheh { 2535ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 25367d0fb914SGoldwyn Rodrigues int rv = 0; 2537ccd979bdSMark Fasheh 2538ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 25397d0fb914SGoldwyn Rodrigues pr_crit("On-disk corruption discovered. " 25407d0fb914SGoldwyn Rodrigues "Please run fsck.ocfs2 once the filesystem is unmounted.\n"); 2541ccd979bdSMark Fasheh 25427d0fb914SGoldwyn Rodrigues if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) { 25437d0fb914SGoldwyn Rodrigues panic("OCFS2: (device %s): panic forced after error\n", 25447d0fb914SGoldwyn Rodrigues sb->s_id); 25457d0fb914SGoldwyn Rodrigues } else if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_CONT) { 25467d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: Returning error to the calling process.\n"); 25477d0fb914SGoldwyn Rodrigues rv = -EIO; 25487d0fb914SGoldwyn Rodrigues } else { /* default option */ 25497d0fb914SGoldwyn Rodrigues rv = -EROFS; 2550bc98a42cSDavid Howells if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb))) 25517d0fb914SGoldwyn Rodrigues return rv; 2552ccd979bdSMark Fasheh 25537d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: File system is now read-only.\n"); 25541751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 2555ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2556ccd979bdSMark Fasheh } 2557ccd979bdSMark Fasheh 25587d0fb914SGoldwyn Rodrigues return rv; 25597d0fb914SGoldwyn Rodrigues } 25607d0fb914SGoldwyn Rodrigues 25617d0fb914SGoldwyn Rodrigues int __ocfs2_error(struct super_block *sb, const char *function, 2562ccd979bdSMark Fasheh const char *fmt, ...) 2563ccd979bdSMark Fasheh { 25641543306eSJoe Perches struct va_format vaf; 2565ccd979bdSMark Fasheh va_list args; 2566ccd979bdSMark Fasheh 2567ccd979bdSMark Fasheh va_start(args, fmt); 25681543306eSJoe Perches vaf.fmt = fmt; 25691543306eSJoe Perches vaf.va = &args; 2570ccd979bdSMark Fasheh 2571ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2572ccd979bdSMark Fasheh * function the error came from. */ 25737ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %pV", 25741543306eSJoe Perches sb->s_id, function, &vaf); 25751543306eSJoe Perches 25761543306eSJoe Perches va_end(args); 2577ccd979bdSMark Fasheh 25787d0fb914SGoldwyn Rodrigues return ocfs2_handle_error(sb); 2579ccd979bdSMark Fasheh } 2580ccd979bdSMark Fasheh 2581ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2582ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2583ccd979bdSMark Fasheh * etc. */ 25841543306eSJoe Perches void __ocfs2_abort(struct super_block *sb, const char *function, 2585ccd979bdSMark Fasheh const char *fmt, ...) 2586ccd979bdSMark Fasheh { 25871543306eSJoe Perches struct va_format vaf; 2588ccd979bdSMark Fasheh va_list args; 2589ccd979bdSMark Fasheh 2590ccd979bdSMark Fasheh va_start(args, fmt); 2591ccd979bdSMark Fasheh 25921543306eSJoe Perches vaf.fmt = fmt; 25931543306eSJoe Perches vaf.va = &args; 25941543306eSJoe Perches 25957ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: abort (device %s): %s: %pV", 25961543306eSJoe Perches sb->s_id, function, &vaf); 25971543306eSJoe Perches 25981543306eSJoe Perches va_end(args); 2599ccd979bdSMark Fasheh 2600ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2601ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2602ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2603ccd979bdSMark Fasheh * errors. 2604ccd979bdSMark Fasheh * 2605ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2606ccd979bdSMark Fasheh * that our slot needs recovery. */ 2607ccd979bdSMark Fasheh 2608ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2609ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2610ccd979bdSMark Fasheh * here. */ 2611a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2612ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2613ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2614ccd979bdSMark Fasheh } 2615ccd979bdSMark Fasheh 2616e4b963f1SJoel Becker /* 2617e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2618e4b963f1SJoel Becker * when SIG_* is wrong. 2619e4b963f1SJoel Becker */ 2620e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2621e4b963f1SJoel Becker { 2622e4b963f1SJoel Becker int rc; 2623e4b963f1SJoel Becker sigset_t blocked; 2624e4b963f1SJoel Becker 2625e4b963f1SJoel Becker sigfillset(&blocked); 2626e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2627e4b963f1SJoel Becker BUG_ON(rc); 2628e4b963f1SJoel Becker } 2629e4b963f1SJoel Becker 2630e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2631e4b963f1SJoel Becker { 2632e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2633e4b963f1SJoel Becker BUG_ON(rc); 2634e4b963f1SJoel Becker } 2635e4b963f1SJoel Becker 2636ccd979bdSMark Fasheh module_init(ocfs2_init); 2637ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2638