1328970deSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 3ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 4ccd979bdSMark Fasheh * 5ccd979bdSMark Fasheh * super.c 6ccd979bdSMark Fasheh * 7ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 8ccd979bdSMark Fasheh * 9ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 10ccd979bdSMark Fasheh */ 11ccd979bdSMark Fasheh 12ccd979bdSMark Fasheh #include <linux/module.h> 13ccd979bdSMark Fasheh #include <linux/fs.h> 14ccd979bdSMark Fasheh #include <linux/types.h> 15ccd979bdSMark Fasheh #include <linux/slab.h> 16ccd979bdSMark Fasheh #include <linux/highmem.h> 17ccd979bdSMark Fasheh #include <linux/init.h> 18ccd979bdSMark Fasheh #include <linux/random.h> 19ccd979bdSMark Fasheh #include <linux/statfs.h> 20ccd979bdSMark Fasheh #include <linux/moduleparam.h> 21ccd979bdSMark Fasheh #include <linux/blkdev.h> 22ccd979bdSMark Fasheh #include <linux/socket.h> 23ccd979bdSMark Fasheh #include <linux/inet.h> 24ccd979bdSMark Fasheh #include <linux/parser.h> 25ccd979bdSMark Fasheh #include <linux/crc32.h> 26ccd979bdSMark Fasheh #include <linux/debugfs.h> 27d550071cSSunil Mushran #include <linux/mount.h> 286953b4c0SJoel Becker #include <linux/seq_file.h> 2919ece546SJan Kara #include <linux/quotaops.h> 301cfd8bd0SDan Magenheimer #include <linux/cleancache.h> 31f361bf4aSIngo Molnar #include <linux/signal.h> 32ccd979bdSMark Fasheh 3380a9a84dSWengang Wang #define CREATE_TRACE_POINTS 3480a9a84dSWengang Wang #include "ocfs2_trace.h" 3580a9a84dSWengang Wang 36ccd979bdSMark Fasheh #include <cluster/masklog.h> 37ccd979bdSMark Fasheh 38ccd979bdSMark Fasheh #include "ocfs2.h" 39ccd979bdSMark Fasheh 40ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 41ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 42ccd979bdSMark Fasheh 43ccd979bdSMark Fasheh #include "alloc.h" 44a11f7e63SMark Fasheh #include "aops.h" 45d030cc97SJoel Becker #include "blockcheck.h" 46ccd979bdSMark Fasheh #include "dlmglue.h" 47ccd979bdSMark Fasheh #include "export.h" 48ccd979bdSMark Fasheh #include "extent_map.h" 49ccd979bdSMark Fasheh #include "heartbeat.h" 50ccd979bdSMark Fasheh #include "inode.h" 51ccd979bdSMark Fasheh #include "journal.h" 52ccd979bdSMark Fasheh #include "localalloc.h" 53ccd979bdSMark Fasheh #include "namei.h" 54ccd979bdSMark Fasheh #include "slot_map.h" 55ccd979bdSMark Fasheh #include "super.h" 56ccd979bdSMark Fasheh #include "sysfile.h" 57ccd979bdSMark Fasheh #include "uptodate.h" 58cf1d6c76STiger Yang #include "xattr.h" 599e33d69fSJan Kara #include "quota.h" 60374a263eSTao Ma #include "refcounttree.h" 61b89c5428STiger Yang #include "suballoc.h" 62ccd979bdSMark Fasheh 63ccd979bdSMark Fasheh #include "buffer_head_io.h" 64a849d468SGang He #include "filecheck.h" 65ccd979bdSMark Fasheh 661a5c4e2aSFabian Frederick static struct kmem_cache *ocfs2_inode_cachep; 679e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 689e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 69ccd979bdSMark Fasheh 701a5c4e2aSFabian Frederick static struct dentry *ocfs2_debugfs_root; 71ccd979bdSMark Fasheh 72ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 73ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 74ff8fb335SGoldwyn Rodrigues MODULE_DESCRIPTION("OCFS2 cluster file system"); 75ccd979bdSMark Fasheh 76c0123adeSTiger Yang struct mount_options 77c0123adeSTiger Yang { 78d147b3d6SMark Fasheh unsigned long commit_interval; 79c0123adeSTiger Yang unsigned long mount_opt; 80c0123adeSTiger Yang unsigned int atime_quantum; 81c0123adeSTiger Yang signed short slot; 8273c8a800SMark Fasheh int localalloc_opt; 83d02f00ccSMark Fasheh unsigned int resv_level; 8483f92318SMark Fasheh int dir_resv_level; 85b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 86c0123adeSTiger Yang }; 87c0123adeSTiger Yang 88ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 89c0123adeSTiger Yang struct mount_options *mopt, 90baf4661aSSunil Mushran int is_remount); 915297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 925297aad8SJan Kara struct mount_options *options); 9334c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root); 94ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 95ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 96ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 97ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 98ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 99ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 100ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 101ccd979bdSMark Fasheh 102726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 103ccd979bdSMark Fasheh 104ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 105ccd979bdSMark Fasheh 106ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 107ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 108bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 109ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 110ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 111ccd979bdSMark Fasheh struct buffer_head *bh, 11273be192bSJoel Becker u32 sectsize, 11373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 114ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 115ccd979bdSMark Fasheh struct buffer_head *bh, 11673be192bSJoel Becker int sector_size, 11773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 118ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 119ccd979bdSMark Fasheh struct buffer_head **bh, 120ccd979bdSMark Fasheh int block, 121ccd979bdSMark Fasheh int sect_size); 122ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 123e91b9194SAl Viro static void ocfs2_free_inode(struct inode *inode); 12419ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 12519ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 12619ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 127ccd979bdSMark Fasheh 1281c92ec67SJan Kara static struct dquot **ocfs2_get_dquots(struct inode *inode) 1291c92ec67SJan Kara { 1301c92ec67SJan Kara return OCFS2_I(inode)->i_dquot; 1311c92ec67SJan Kara } 1321c92ec67SJan Kara 133ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 134ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 135ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 136e91b9194SAl Viro .free_inode = ocfs2_free_inode, 137ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 138066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 139ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 140ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 141ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 142d550071cSSunil Mushran .show_options = ocfs2_show_options, 1439e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1449e33d69fSJan Kara .quota_write = ocfs2_quota_write, 1451c92ec67SJan Kara .get_dquots = ocfs2_get_dquots, 146ccd979bdSMark Fasheh }; 147ccd979bdSMark Fasheh 148ccd979bdSMark Fasheh enum { 149ccd979bdSMark Fasheh Opt_barrier, 150ccd979bdSMark Fasheh Opt_err_panic, 151ccd979bdSMark Fasheh Opt_err_ro, 152ccd979bdSMark Fasheh Opt_intr, 153ccd979bdSMark Fasheh Opt_nointr, 154ccd979bdSMark Fasheh Opt_hb_none, 155ccd979bdSMark Fasheh Opt_hb_local, 1562c442719SSunil Mushran Opt_hb_global, 157ccd979bdSMark Fasheh Opt_data_ordered, 158ccd979bdSMark Fasheh Opt_data_writeback, 1597f1a37e3STiger Yang Opt_atime_quantum, 160baf4661aSSunil Mushran Opt_slot, 161d147b3d6SMark Fasheh Opt_commit, 1622fbe8d1eSSunil Mushran Opt_localalloc, 16353fc622bSMark Fasheh Opt_localflocks, 164b61817e1SJoel Becker Opt_stack, 165cf1d6c76STiger Yang Opt_user_xattr, 166cf1d6c76STiger Yang Opt_nouser_xattr, 16712462f1dSJoel Becker Opt_inode64, 168a68979b8STiger Yang Opt_acl, 169a68979b8STiger Yang Opt_noacl, 17019ece546SJan Kara Opt_usrquota, 17119ece546SJan Kara Opt_grpquota, 1727bdb0d18STristan Ye Opt_coherency_buffered, 1737bdb0d18STristan Ye Opt_coherency_full, 174d02f00ccSMark Fasheh Opt_resv_level, 17583f92318SMark Fasheh Opt_dir_resv_level, 1761dfeb768Salex chen Opt_journal_async_commit, 1777d0fb914SGoldwyn Rodrigues Opt_err_cont, 178ccd979bdSMark Fasheh Opt_err, 179ccd979bdSMark Fasheh }; 180ccd979bdSMark Fasheh 181a447c093SSteven Whitehouse static const match_table_t tokens = { 182ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 183ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 184ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 185ccd979bdSMark Fasheh {Opt_intr, "intr"}, 186ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 187ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 188ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 1892c442719SSunil Mushran {Opt_hb_global, OCFS2_HB_GLOBAL}, 190ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 191ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1927f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 193baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 194d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1952fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19653fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 197b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 198cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 199cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 20012462f1dSJoel Becker {Opt_inode64, "inode64"}, 201a68979b8STiger Yang {Opt_acl, "acl"}, 202a68979b8STiger Yang {Opt_noacl, "noacl"}, 20319ece546SJan Kara {Opt_usrquota, "usrquota"}, 20419ece546SJan Kara {Opt_grpquota, "grpquota"}, 2057bdb0d18STristan Ye {Opt_coherency_buffered, "coherency=buffered"}, 2067bdb0d18STristan Ye {Opt_coherency_full, "coherency=full"}, 207d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 20883f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 2091dfeb768Salex chen {Opt_journal_async_commit, "journal_async_commit"}, 2107d0fb914SGoldwyn Rodrigues {Opt_err_cont, "errors=continue"}, 211ccd979bdSMark Fasheh {Opt_err, NULL} 212ccd979bdSMark Fasheh }; 213ccd979bdSMark Fasheh 21450397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 21550397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 21650397507SSunil Mushran { 21750397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 21850397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 219df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 220df152c24SSunil Mushran int i, out = 0; 221bfd97a03Sjiangyiwen unsigned long flags; 22250397507SSunil Mushran 22350397507SSunil Mushran out += snprintf(buf + out, len - out, 22450397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 22550397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 22650397507SSunil Mushran osb->fs_generation, osb->vol_label); 22750397507SSunil Mushran 22850397507SSunil Mushran out += snprintf(buf + out, len - out, 22950397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 23050397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 23150397507SSunil Mushran 23250397507SSunil Mushran out += snprintf(buf + out, len - out, 23350397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 23450397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 23550397507SSunil Mushran 23650397507SSunil Mushran out += snprintf(buf + out, len - out, 23750397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 23850397507SSunil Mushran "ROcompat: 0x%X\n", 23950397507SSunil Mushran "Features", osb->s_feature_compat, 24050397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 24150397507SSunil Mushran 24250397507SSunil Mushran out += snprintf(buf + out, len - out, 24350397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 24450397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 24550397507SSunil Mushran 246c3d38840SSunil Mushran if (cconn) { 24750397507SSunil Mushran out += snprintf(buf + out, len - out, 248c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 249c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 25050397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 25150397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 25250397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 253c3d38840SSunil Mushran cconn->cc_version.pv_major, 254c3d38840SSunil Mushran cconn->cc_version.pv_minor); 255c3d38840SSunil Mushran } 25650397507SSunil Mushran 257bfd97a03Sjiangyiwen spin_lock_irqsave(&osb->dc_task_lock, flags); 25850397507SSunil Mushran out += snprintf(buf + out, len - out, 25950397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 26050397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 261c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 262c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 263c3d38840SSunil Mushran osb->dc_work_sequence); 264bfd97a03Sjiangyiwen spin_unlock_irqrestore(&osb->dc_task_lock, flags); 26550397507SSunil Mushran 26650397507SSunil Mushran spin_lock(&osb->osb_lock); 26750397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 26850397507SSunil Mushran "Recovery", 26950397507SSunil Mushran (osb->recovery_thread_task ? 27050397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 27150397507SSunil Mushran if (rm->rm_used == 0) 27250397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 27350397507SSunil Mushran else { 27450397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 27550397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 27650397507SSunil Mushran rm->rm_entries[i]); 27750397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 27850397507SSunil Mushran } 27950397507SSunil Mushran spin_unlock(&osb->osb_lock); 28050397507SSunil Mushran 28150397507SSunil Mushran out += snprintf(buf + out, len - out, 2828fa9d17fSGoldwyn Rodrigues "%10s => Pid: %d Interval: %lu\n", "Commit", 283c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 2848fa9d17fSGoldwyn Rodrigues osb->osb_commit_interval); 28550397507SSunil Mushran 28650397507SSunil Mushran out += snprintf(buf + out, len - out, 287c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 28850397507SSunil Mushran "Journal", osb->journal->j_state, 289c3d38840SSunil Mushran osb->journal->j_trans_id, 290c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 29150397507SSunil Mushran 29250397507SSunil Mushran out += snprintf(buf + out, len - out, 29350397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 29450397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 29550397507SSunil Mushran "Stats", 29650397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 29750397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 29850397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 29950397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 30050397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 30150397507SSunil Mushran 30250397507SSunil Mushran out += snprintf(buf + out, len - out, 30350397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 30450397507SSunil Mushran "Default: %u bits\n", 30550397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 30650397507SSunil Mushran (unsigned long long)osb->la_last_gd, 30750397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 30850397507SSunil Mushran 30950397507SSunil Mushran spin_lock(&osb->osb_lock); 31050397507SSunil Mushran out += snprintf(buf + out, len - out, 311b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 312b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 31350397507SSunil Mushran osb->s_inode_steal_slot, 314b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 315b89c5428STiger Yang osb->s_meta_steal_slot, 316b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 31750397507SSunil Mushran spin_unlock(&osb->osb_lock); 31850397507SSunil Mushran 319df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 320df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 321df152c24SSunil Mushran os->os_count, os->os_seqno); 322df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 323df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 324df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 325df152c24SSunil Mushran else 326df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 327395627b0SDeepa Dinamani (unsigned long)(ktime_get_seconds() - os->os_scantime)); 328df152c24SSunil Mushran 32950397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 33050397507SSunil Mushran "Slots", "Num", "RecoGen"); 33150397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 33250397507SSunil Mushran out += snprintf(buf + out, len - out, 33350397507SSunil Mushran "%10s %c %3d %10d\n", 33450397507SSunil Mushran " ", 33550397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 33650397507SSunil Mushran i, osb->slot_recovery_generations[i]); 33750397507SSunil Mushran } 33850397507SSunil Mushran 33950397507SSunil Mushran return out; 34050397507SSunil Mushran } 34150397507SSunil Mushran 34250397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 34350397507SSunil Mushran { 34450397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 34550397507SSunil Mushran char *buf = NULL; 34650397507SSunil Mushran 34750397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 34850397507SSunil Mushran if (!buf) 34950397507SSunil Mushran goto bail; 35050397507SSunil Mushran 35150397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 35250397507SSunil Mushran 35350397507SSunil Mushran file->private_data = buf; 35450397507SSunil Mushran 35550397507SSunil Mushran return 0; 35650397507SSunil Mushran bail: 35750397507SSunil Mushran return -ENOMEM; 35850397507SSunil Mushran } 35950397507SSunil Mushran 36050397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36150397507SSunil Mushran { 36250397507SSunil Mushran kfree(file->private_data); 36350397507SSunil Mushran return 0; 36450397507SSunil Mushran } 36550397507SSunil Mushran 36650397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 36750397507SSunil Mushran size_t nbytes, loff_t *ppos) 36850397507SSunil Mushran { 36950397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 37050397507SSunil Mushran i_size_read(file->f_mapping->host)); 37150397507SSunil Mushran } 37250397507SSunil Mushran #else 37350397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 37450397507SSunil Mushran { 37550397507SSunil Mushran return 0; 37650397507SSunil Mushran } 37750397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 37850397507SSunil Mushran { 37950397507SSunil Mushran return 0; 38050397507SSunil Mushran } 38150397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 38250397507SSunil Mushran size_t nbytes, loff_t *ppos) 38350397507SSunil Mushran { 38450397507SSunil Mushran return 0; 38550397507SSunil Mushran } 38650397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 38750397507SSunil Mushran 388828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 38950397507SSunil Mushran .open = ocfs2_osb_debug_open, 39050397507SSunil Mushran .release = ocfs2_debug_release, 39150397507SSunil Mushran .read = ocfs2_debug_read, 39250397507SSunil Mushran .llseek = generic_file_llseek, 39350397507SSunil Mushran }; 39450397507SSunil Mushran 395ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 396ccd979bdSMark Fasheh { 397bddb8eb3SDenis Cheng int status; 398ccd979bdSMark Fasheh tid_t target; 399ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 400ccd979bdSMark Fasheh 401ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 402ccd979bdSMark Fasheh return -EROFS; 403ccd979bdSMark Fasheh 404ccd979bdSMark Fasheh if (wait) { 405ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 406ccd979bdSMark Fasheh if (status < 0) 407ccd979bdSMark Fasheh mlog_errno(status); 408ccd979bdSMark Fasheh } else { 409ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 410ccd979bdSMark Fasheh } 411ccd979bdSMark Fasheh 4121119d3c0Spiaojun if (jbd2_journal_start_commit(osb->journal->j_journal, 4132b4e30fbSJoel Becker &target)) { 414ccd979bdSMark Fasheh if (wait) 4151119d3c0Spiaojun jbd2_log_wait_commit(osb->journal->j_journal, 416ccd979bdSMark Fasheh target); 417ccd979bdSMark Fasheh } 418ccd979bdSMark Fasheh return 0; 419ccd979bdSMark Fasheh } 420ccd979bdSMark Fasheh 4211a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4221a224ad1SJan Kara { 4231a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4241a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4251a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4261a224ad1SJan Kara return 0; 4271a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4281a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4291a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4301a224ad1SJan Kara return 0; 4311a224ad1SJan Kara return 1; 4321a224ad1SJan Kara } 4331a224ad1SJan Kara 434ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 435ccd979bdSMark Fasheh { 436ccd979bdSMark Fasheh struct inode *new = NULL; 437ccd979bdSMark Fasheh int status = 0; 438ccd979bdSMark Fasheh int i; 439ccd979bdSMark Fasheh 4405fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 441ccd979bdSMark Fasheh if (IS_ERR(new)) { 442ccd979bdSMark Fasheh status = PTR_ERR(new); 443ccd979bdSMark Fasheh mlog_errno(status); 444ccd979bdSMark Fasheh goto bail; 445ccd979bdSMark Fasheh } 446ccd979bdSMark Fasheh osb->root_inode = new; 447ccd979bdSMark Fasheh 4485fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 449ccd979bdSMark Fasheh if (IS_ERR(new)) { 450ccd979bdSMark Fasheh status = PTR_ERR(new); 451ccd979bdSMark Fasheh mlog_errno(status); 452ccd979bdSMark Fasheh goto bail; 453ccd979bdSMark Fasheh } 454ccd979bdSMark Fasheh osb->sys_root_inode = new; 455ccd979bdSMark Fasheh 456ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 457ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4581a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4591a224ad1SJan Kara continue; 460ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 461ccd979bdSMark Fasheh if (!new) { 462ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 463025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 464ccd979bdSMark Fasheh mlog_errno(status); 465ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 466ccd979bdSMark Fasheh "possibly corrupt fs?", i); 467ccd979bdSMark Fasheh goto bail; 468ccd979bdSMark Fasheh } 469ccd979bdSMark Fasheh // the array now has one ref, so drop this one 470ccd979bdSMark Fasheh iput(new); 471ccd979bdSMark Fasheh } 472ccd979bdSMark Fasheh 473ccd979bdSMark Fasheh bail: 474c1e8d35eSTao Ma if (status) 475c1e8d35eSTao Ma mlog_errno(status); 476ccd979bdSMark Fasheh return status; 477ccd979bdSMark Fasheh } 478ccd979bdSMark Fasheh 479ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 480ccd979bdSMark Fasheh { 481ccd979bdSMark Fasheh struct inode *new = NULL; 482ccd979bdSMark Fasheh int status = 0; 483ccd979bdSMark Fasheh int i; 484ccd979bdSMark Fasheh 485ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 486ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 487ccd979bdSMark Fasheh i++) { 4881a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4891a224ad1SJan Kara continue; 490ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 491ccd979bdSMark Fasheh if (!new) { 492ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 493025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 494ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 495ccd979bdSMark Fasheh status, i, osb->slot_num); 496ccd979bdSMark Fasheh goto bail; 497ccd979bdSMark Fasheh } 498ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 499ccd979bdSMark Fasheh iput(new); 500ccd979bdSMark Fasheh } 501ccd979bdSMark Fasheh 502ccd979bdSMark Fasheh bail: 503c1e8d35eSTao Ma if (status) 504c1e8d35eSTao Ma mlog_errno(status); 505ccd979bdSMark Fasheh return status; 506ccd979bdSMark Fasheh } 507ccd979bdSMark Fasheh 508bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 509ccd979bdSMark Fasheh { 510bddb8eb3SDenis Cheng int i; 511ccd979bdSMark Fasheh struct inode *inode; 512ccd979bdSMark Fasheh 513b4d693fcSTao Ma for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { 514b4d693fcSTao Ma inode = osb->global_system_inodes[i]; 515ccd979bdSMark Fasheh if (inode) { 516ccd979bdSMark Fasheh iput(inode); 517b4d693fcSTao Ma osb->global_system_inodes[i] = NULL; 518ccd979bdSMark Fasheh } 519ccd979bdSMark Fasheh } 520ccd979bdSMark Fasheh 521ccd979bdSMark Fasheh inode = osb->sys_root_inode; 522ccd979bdSMark Fasheh if (inode) { 523ccd979bdSMark Fasheh iput(inode); 524ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 525ccd979bdSMark Fasheh } 526ccd979bdSMark Fasheh 527ccd979bdSMark Fasheh inode = osb->root_inode; 528ccd979bdSMark Fasheh if (inode) { 529ccd979bdSMark Fasheh iput(inode); 530ccd979bdSMark Fasheh osb->root_inode = NULL; 531ccd979bdSMark Fasheh } 532ccd979bdSMark Fasheh 533b4d693fcSTao Ma if (!osb->local_system_inodes) 534c1e8d35eSTao Ma return; 535b4d693fcSTao Ma 536b4d693fcSTao Ma for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { 537b4d693fcSTao Ma if (osb->local_system_inodes[i]) { 538b4d693fcSTao Ma iput(osb->local_system_inodes[i]); 539b4d693fcSTao Ma osb->local_system_inodes[i] = NULL; 540b4d693fcSTao Ma } 541b4d693fcSTao Ma } 542b4d693fcSTao Ma 543b4d693fcSTao Ma kfree(osb->local_system_inodes); 544b4d693fcSTao Ma osb->local_system_inodes = NULL; 545ccd979bdSMark Fasheh } 546ccd979bdSMark Fasheh 547ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 548ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 549ccd979bdSMark Fasheh { 550ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 551ccd979bdSMark Fasheh 552e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 553ccd979bdSMark Fasheh if (!oi) 554ccd979bdSMark Fasheh return NULL; 555ccd979bdSMark Fasheh 5562931cdcbSDarrick J. Wong oi->i_sync_tid = 0; 5572931cdcbSDarrick J. Wong oi->i_datasync_tid = 0; 5581c92ec67SJan Kara memset(&oi->i_dquot, 0, sizeof(oi->i_dquot)); 5592931cdcbSDarrick J. Wong 5602b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 561ccd979bdSMark Fasheh return &oi->vfs_inode; 562ccd979bdSMark Fasheh } 563ccd979bdSMark Fasheh 564e91b9194SAl Viro static void ocfs2_free_inode(struct inode *inode) 565fa0d7e3dSNick Piggin { 566fa0d7e3dSNick Piggin kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 567fa0d7e3dSNick Piggin } 568fa0d7e3dSNick Piggin 5695a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5705a254031SMark Fasheh unsigned int cbits) 571ccd979bdSMark Fasheh { 5725a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5735a254031SMark Fasheh unsigned int trim = bytes; 5745a254031SMark Fasheh unsigned int bitshift = 32; 575ccd979bdSMark Fasheh 5765a254031SMark Fasheh /* 5775a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5785a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5795a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 580ccd979bdSMark Fasheh */ 581ccd979bdSMark Fasheh 582ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 5832ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5845a254031SMark Fasheh /* 5855a254031SMark Fasheh * We might be limited by page cache size. 5865a254031SMark Fasheh */ 58709cbfeafSKirill A. Shutemov if (bytes > PAGE_SIZE) { 58809cbfeafSKirill A. Shutemov bytes = PAGE_SIZE; 5895a254031SMark Fasheh trim = 1; 5905a254031SMark Fasheh /* 5915a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5925a254031SMark Fasheh * MAX_LFS_FILESIZE 5935a254031SMark Fasheh */ 5945a254031SMark Fasheh bitshift = 31; 5955a254031SMark Fasheh } 596ccd979bdSMark Fasheh #endif 597ccd979bdSMark Fasheh 5985a254031SMark Fasheh /* 5995a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 6005a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 6015a254031SMark Fasheh * an extent start is at the max offset. 6025a254031SMark Fasheh */ 6035a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 604ccd979bdSMark Fasheh } 605ccd979bdSMark Fasheh 606ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 607ccd979bdSMark Fasheh { 608ccd979bdSMark Fasheh int incompat_features; 609ccd979bdSMark Fasheh int ret = 0; 610c0123adeSTiger Yang struct mount_options parsed_options; 611ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 6122c442719SSunil Mushran u32 tmp; 613ccd979bdSMark Fasheh 61402b9984dSTheodore Ts'o sync_filesystem(sb); 61502b9984dSTheodore Ts'o 6165297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6175297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 618ccd979bdSMark Fasheh ret = -EINVAL; 619ccd979bdSMark Fasheh goto out; 620ccd979bdSMark Fasheh } 621ccd979bdSMark Fasheh 6222c442719SSunil Mushran tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | 6232c442719SSunil Mushran OCFS2_MOUNT_HB_NONE; 6242c442719SSunil Mushran if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 625ccd979bdSMark Fasheh ret = -EINVAL; 626ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 627ccd979bdSMark Fasheh goto out; 628ccd979bdSMark Fasheh } 629ccd979bdSMark Fasheh 630ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 631c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 632ccd979bdSMark Fasheh ret = -EINVAL; 633ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 634ccd979bdSMark Fasheh goto out; 635ccd979bdSMark Fasheh } 636ccd979bdSMark Fasheh 63712462f1dSJoel Becker /* Probably don't want this on remount; it might 63812462f1dSJoel Becker * mess with other nodes */ 63912462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 64012462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 64112462f1dSJoel Becker ret = -EINVAL; 64212462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 64312462f1dSJoel Becker goto out; 64412462f1dSJoel Becker } 64512462f1dSJoel Becker 646ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 6471751e8a6SLinus Torvalds if ((bool)(*flags & SB_RDONLY) != sb_rdonly(sb)) { 64819ece546SJan Kara /* Disable quota accounting before remounting RO */ 6491751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 65019ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 65119ece546SJan Kara if (ret < 0) 65219ece546SJan Kara goto out; 65319ece546SJan Kara } 654ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 655ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 656ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 657ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 658ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 659ccd979bdSMark Fasheh ret = -EROFS; 660ccd979bdSMark Fasheh goto unlock_osb; 661ccd979bdSMark Fasheh } 662ccd979bdSMark Fasheh 6631751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 6641751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 665ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 666ccd979bdSMark Fasheh } else { 667ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 668ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 669ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 670ccd979bdSMark Fasheh ret = -EROFS; 671ccd979bdSMark Fasheh goto unlock_osb; 672ccd979bdSMark Fasheh } 673ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 674ccd979bdSMark Fasheh if (incompat_features) { 675ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 676ccd979bdSMark Fasheh "of unsupported optional features " 677ccd979bdSMark Fasheh "(%x).\n", incompat_features); 678ccd979bdSMark Fasheh ret = -EINVAL; 679ccd979bdSMark Fasheh goto unlock_osb; 680ccd979bdSMark Fasheh } 6811751e8a6SLinus Torvalds sb->s_flags &= ~SB_RDONLY; 682ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 683ccd979bdSMark Fasheh } 68432a42d39STao Ma trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); 685ccd979bdSMark Fasheh unlock_osb: 686ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 68719ece546SJan Kara /* Enable quota accounting after remounting RW */ 6881751e8a6SLinus Torvalds if (!ret && !(*flags & SB_RDONLY)) { 68919ece546SJan Kara if (sb_any_quota_suspended(sb)) 69019ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 69119ece546SJan Kara else 69219ece546SJan Kara ret = ocfs2_enable_quotas(osb); 69319ece546SJan Kara if (ret < 0) { 69419ece546SJan Kara /* Return back changes... */ 69519ece546SJan Kara spin_lock(&osb->osb_lock); 6961751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 69719ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 69819ece546SJan Kara spin_unlock(&osb->osb_lock); 69919ece546SJan Kara goto out; 70019ece546SJan Kara } 70119ece546SJan Kara } 702ccd979bdSMark Fasheh } 703ccd979bdSMark Fasheh 704ccd979bdSMark Fasheh if (!ret) { 705ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 706ccd979bdSMark Fasheh * remount. */ 707c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 708c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 709c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 710d147b3d6SMark Fasheh if (parsed_options.commit_interval) 711d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 712e001e796SMark Fasheh 713e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 714e001e796SMark Fasheh ocfs2_set_journal_params(osb); 71557b09bb5SJan Kara 7161751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | 71757b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 7181751e8a6SLinus Torvalds SB_POSIXACL : 0); 719ccd979bdSMark Fasheh } 720ccd979bdSMark Fasheh out: 721ccd979bdSMark Fasheh return ret; 722ccd979bdSMark Fasheh } 723ccd979bdSMark Fasheh 724ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 725ccd979bdSMark Fasheh struct buffer_head **bh, 72673be192bSJoel Becker int *sector_size, 72773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 728ccd979bdSMark Fasheh { 729bddb8eb3SDenis Cheng int status, tmpstat; 730ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 731ccd979bdSMark Fasheh struct ocfs2_dinode *di; 732ccd979bdSMark Fasheh int blksize; 733ccd979bdSMark Fasheh 734ccd979bdSMark Fasheh *bh = NULL; 735ccd979bdSMark Fasheh 736ccd979bdSMark Fasheh /* may be > 512 */ 737e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 738ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 739ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 740ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 741ccd979bdSMark Fasheh status = -EINVAL; 742ccd979bdSMark Fasheh goto bail; 743ccd979bdSMark Fasheh } 744ccd979bdSMark Fasheh 745ccd979bdSMark Fasheh /* Can this really happen? */ 746ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 747ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 748ccd979bdSMark Fasheh 749ccd979bdSMark Fasheh /* check block zero for old format */ 750ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 751ccd979bdSMark Fasheh if (status < 0) { 752ccd979bdSMark Fasheh mlog_errno(status); 753ccd979bdSMark Fasheh goto bail; 754ccd979bdSMark Fasheh } 755ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 756ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 757ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 758ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 759ccd979bdSMark Fasheh status = -EINVAL; 760ccd979bdSMark Fasheh } 761ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 762ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 763ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 764ccd979bdSMark Fasheh hdr->signature); 765ccd979bdSMark Fasheh status = -EINVAL; 766ccd979bdSMark Fasheh } 767ccd979bdSMark Fasheh brelse(*bh); 768ccd979bdSMark Fasheh *bh = NULL; 769ccd979bdSMark Fasheh if (status < 0) { 770ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 771ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 772ccd979bdSMark Fasheh goto bail; 773ccd979bdSMark Fasheh } 774ccd979bdSMark Fasheh 775ccd979bdSMark Fasheh /* 776ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 777ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 778ccd979bdSMark Fasheh * the minimum clustersize. 779ccd979bdSMark Fasheh */ 780ccd979bdSMark Fasheh status = -EINVAL; 781ccd979bdSMark Fasheh for (blksize = *sector_size; 782ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 783ccd979bdSMark Fasheh blksize <<= 1) { 784ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 785ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 786ccd979bdSMark Fasheh blksize); 787ccd979bdSMark Fasheh if (tmpstat < 0) { 788ccd979bdSMark Fasheh status = tmpstat; 789ccd979bdSMark Fasheh mlog_errno(status); 790fb5cbe9eSJoel Becker break; 791ccd979bdSMark Fasheh } 792ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 79373be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 7941c1d9793SJan Kara spin_lock_init(&stats->b_lock); 795fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 796fb5cbe9eSJoel Becker if (tmpstat < 0) { 797ccd979bdSMark Fasheh brelse(*bh); 798ccd979bdSMark Fasheh *bh = NULL; 799fb5cbe9eSJoel Becker } 800fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 801fb5cbe9eSJoel Becker status = tmpstat; 802ccd979bdSMark Fasheh break; 803ccd979bdSMark Fasheh } 804fb5cbe9eSJoel Becker } 805ccd979bdSMark Fasheh 806ccd979bdSMark Fasheh bail: 807ccd979bdSMark Fasheh return status; 808ccd979bdSMark Fasheh } 809ccd979bdSMark Fasheh 810c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 811c271c5c2SSunil Mushran { 8122c442719SSunil Mushran u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; 8132c442719SSunil Mushran 8142c442719SSunil Mushran if (osb->s_mount_opt & hb_enabled) { 815c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 816c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 817c271c5c2SSunil Mushran "mounted device.\n"); 818c271c5c2SSunil Mushran return -EINVAL; 819c271c5c2SSunil Mushran } 820b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 821b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 822b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 823b61817e1SJoel Becker return -EINVAL; 824b61817e1SJoel Becker } 8252c442719SSunil Mushran if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && 8262c442719SSunil Mushran !ocfs2_cluster_o2cb_global_heartbeat(osb)) || 8272c442719SSunil Mushran ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && 8282c442719SSunil Mushran ocfs2_cluster_o2cb_global_heartbeat(osb))) { 8292c442719SSunil Mushran mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); 8302c442719SSunil Mushran return -EINVAL; 8312c442719SSunil Mushran } 832b61817e1SJoel Becker } 833b61817e1SJoel Becker 8342c442719SSunil Mushran if (!(osb->s_mount_opt & hb_enabled)) { 835b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 836b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 837c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 838c271c5c2SSunil Mushran "a read-write clustered device.\n"); 839c271c5c2SSunil Mushran return -EINVAL; 840c271c5c2SSunil Mushran } 841c271c5c2SSunil Mushran } 842c271c5c2SSunil Mushran 843c271c5c2SSunil Mushran return 0; 844c271c5c2SSunil Mushran } 845c271c5c2SSunil Mushran 846b61817e1SJoel Becker /* 847b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 848b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 849b61817e1SJoel Becker * have passed a stack. 850b61817e1SJoel Becker */ 851b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 852b61817e1SJoel Becker struct mount_options *mopt) 853b61817e1SJoel Becker { 854b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 855b61817e1SJoel Becker mlog(ML_ERROR, 856b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 857b61817e1SJoel Becker "does not support it\n"); 858b61817e1SJoel Becker return -EINVAL; 859b61817e1SJoel Becker } 860b61817e1SJoel Becker 861b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 862b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 863b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 864b61817e1SJoel Becker mlog(ML_ERROR, 865b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 866b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 867b61817e1SJoel Becker mopt->cluster_stack, 868b61817e1SJoel Becker osb->osb_cluster_stack); 869b61817e1SJoel Becker return -EINVAL; 870b61817e1SJoel Becker } 871b61817e1SJoel Becker 872b61817e1SJoel Becker return 0; 873b61817e1SJoel Becker } 874b61817e1SJoel Becker 87519ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 87619ece546SJan Kara { 87719ece546SJan Kara int type; 87819ece546SJan Kara struct super_block *sb = osb->sb; 87952362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 88052362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 88119ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 88219ece546SJan Kara int status = 0; 88319ece546SJan Kara 88452362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 88519ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 88619ece546SJan Kara continue; 88719ece546SJan Kara if (unsuspend) 8880f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 889eea7feb0SJan Kara else { 890eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 891eea7feb0SJan Kara 892eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 893eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 894eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 8950f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 896eea7feb0SJan Kara } 89719ece546SJan Kara if (status < 0) 89819ece546SJan Kara break; 89919ece546SJan Kara } 90019ece546SJan Kara if (status < 0) 90119ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 90219ece546SJan Kara "remount (error = %d).\n", status); 90319ece546SJan Kara return status; 90419ece546SJan Kara } 90519ece546SJan Kara 90619ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 90719ece546SJan Kara { 90852362810SJan Kara struct inode *inode[OCFS2_MAXQUOTAS] = { NULL, NULL }; 90919ece546SJan Kara struct super_block *sb = osb->sb; 91052362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 91152362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 91219ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 91352362810SJan Kara unsigned int ino[OCFS2_MAXQUOTAS] = { 91452362810SJan Kara LOCAL_USER_QUOTA_SYSTEM_INODE, 91519ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 91619ece546SJan Kara int status; 91719ece546SJan Kara int type; 91819ece546SJan Kara 91919ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 92052362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 92119ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 92219ece546SJan Kara continue; 92319ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 92419ece546SJan Kara osb->slot_num); 92519ece546SJan Kara if (!inode[type]) { 92619ece546SJan Kara status = -ENOENT; 92719ece546SJan Kara goto out_quota_off; 92819ece546SJan Kara } 929287a8095SChristoph Hellwig status = dquot_enable(inode[type], type, QFMT_OCFS2, 93019ece546SJan Kara DQUOT_USAGE_ENABLED); 93119ece546SJan Kara if (status < 0) 93219ece546SJan Kara goto out_quota_off; 93319ece546SJan Kara } 93419ece546SJan Kara 93552362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 93619ece546SJan Kara iput(inode[type]); 93719ece546SJan Kara return 0; 93819ece546SJan Kara out_quota_off: 93919ece546SJan Kara ocfs2_disable_quotas(osb); 94052362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 94119ece546SJan Kara iput(inode[type]); 94219ece546SJan Kara mlog_errno(status); 94319ece546SJan Kara return status; 94419ece546SJan Kara } 94519ece546SJan Kara 94619ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 94719ece546SJan Kara { 94819ece546SJan Kara int type; 94919ece546SJan Kara struct inode *inode; 95019ece546SJan Kara struct super_block *sb = osb->sb; 951c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 95219ece546SJan Kara 95319ece546SJan Kara /* We mostly ignore errors in this function because there's not much 95419ece546SJan Kara * we can do when we see them */ 95552362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 95619ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 95719ece546SJan Kara continue; 958c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 959c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 96019ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 96119ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 96219ece546SJan Kara * memory and so they will be automatically synced to global 96319ece546SJan Kara * quota files */ 9640f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 96519ece546SJan Kara DQUOT_LIMITS_ENABLED); 96619ece546SJan Kara if (!inode) 96719ece546SJan Kara continue; 96819ece546SJan Kara iput(inode); 96919ece546SJan Kara } 97019ece546SJan Kara } 97119ece546SJan Kara 972ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 973ccd979bdSMark Fasheh { 974ccd979bdSMark Fasheh struct dentry *root; 975ccd979bdSMark Fasheh int status, sector_size; 976c0123adeSTiger Yang struct mount_options parsed_options; 977ccd979bdSMark Fasheh struct inode *inode = NULL; 978ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 979ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 98049fa8140SGoldwyn Rodrigues char nodestr[12]; 98173be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 982ccd979bdSMark Fasheh 98332a42d39STao Ma trace_ocfs2_fill_super(sb, data, silent); 984ccd979bdSMark Fasheh 985c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 986c271c5c2SSunil Mushran status = -EINVAL; 987c271c5c2SSunil Mushran goto read_super_error; 988c271c5c2SSunil Mushran } 989c271c5c2SSunil Mushran 990ccd979bdSMark Fasheh /* probe for superblock */ 99173be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 992ccd979bdSMark Fasheh if (status < 0) { 993ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 994ccd979bdSMark Fasheh goto read_super_error; 995ccd979bdSMark Fasheh } 996ccd979bdSMark Fasheh 99773be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 998ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 999ccd979bdSMark Fasheh if (status < 0) { 1000ccd979bdSMark Fasheh mlog_errno(status); 1001ccd979bdSMark Fasheh goto read_super_error; 1002ccd979bdSMark Fasheh } 1003ccd979bdSMark Fasheh brelse(bh); 1004ccd979bdSMark Fasheh bh = NULL; 1005a68979b8STiger Yang 10065297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10075297aad8SJan Kara status = -EINVAL; 10085297aad8SJan Kara goto read_super_error; 10095297aad8SJan Kara } 1010c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1011c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1012c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1013d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 101473c8a800SMark Fasheh 101573c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1016d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 101783f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 101883f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 101983f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 102083f92318SMark Fasheh else 102183f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1022ccd979bdSMark Fasheh 1023b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1024b61817e1SJoel Becker if (status) 1025b61817e1SJoel Becker goto read_super_error; 1026b61817e1SJoel Becker 1027ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1028ccd979bdSMark Fasheh 10291751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~(SB_POSIXACL | SB_NOSEC)) | 10301751e8a6SLinus Torvalds ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? SB_POSIXACL : 0); 1031a68979b8STiger Yang 10321751e8a6SLinus Torvalds /* Hard readonly mode only if: bdev_read_only, SB_RDONLY, 1033ccd979bdSMark Fasheh * heartbeat=none */ 1034ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1035bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 1036ccd979bdSMark Fasheh status = -EACCES; 1037ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1038ccd979bdSMark Fasheh "mount was not specified.\n"); 1039ccd979bdSMark Fasheh goto read_super_error; 1040ccd979bdSMark Fasheh } 1041ccd979bdSMark Fasheh 1042ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1043ccd979bdSMark Fasheh * on a readonly device. */ 1044ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1045ccd979bdSMark Fasheh status = -EROFS; 1046ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1047ccd979bdSMark Fasheh "device.\n"); 1048ccd979bdSMark Fasheh goto read_super_error; 1049ccd979bdSMark Fasheh } 1050ccd979bdSMark Fasheh 1051ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1052ccd979bdSMark Fasheh if (status < 0) { 1053ccd979bdSMark Fasheh if (status == -EROFS) 1054ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1055ccd979bdSMark Fasheh "file system, but write access is " 1056ccd979bdSMark Fasheh "unavailable.\n"); 1057ccd979bdSMark Fasheh else 1058ccd979bdSMark Fasheh mlog_errno(status); 1059ccd979bdSMark Fasheh goto read_super_error; 1060ccd979bdSMark Fasheh } 1061ccd979bdSMark Fasheh 1062ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1063ccd979bdSMark Fasheh 1064619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Readonly device (%s) detected. " 1065619c200dSSunil Mushran "Cluster services will not be used for this mount. " 1066619c200dSSunil Mushran "Recovery will be skipped.\n", osb->dev_str); 1067ccd979bdSMark Fasheh } 1068ccd979bdSMark Fasheh 1069ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1070bc98a42cSDavid Howells if (sb_rdonly(sb)) 1071ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1072ccd979bdSMark Fasheh } 1073ccd979bdSMark Fasheh 1074c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1075c271c5c2SSunil Mushran if (status < 0) { 1076c271c5c2SSunil Mushran mlog_errno(status); 1077c271c5c2SSunil Mushran goto read_super_error; 1078c271c5c2SSunil Mushran } 1079c271c5c2SSunil Mushran 1080ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1081ccd979bdSMark Fasheh ocfs2_debugfs_root); 1082ccd979bdSMark Fasheh 10835e7a3ed9SGreg Kroah-Hartman debugfs_create_file("fs_state", S_IFREG|S_IRUSR, osb->osb_debug_root, 10845e7a3ed9SGreg Kroah-Hartman osb, &ocfs2_osb_debug_fops); 108550397507SSunil Mushran 1086e581595eSGreg Kroah-Hartman if (ocfs2_meta_ecc(osb)) 1087e581595eSGreg Kroah-Hartman ocfs2_blockcheck_stats_debugfs_install( &osb->osb_ecc_stats, 108873be192bSJoel Becker osb->osb_debug_root); 108973be192bSJoel Becker 1090ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1091ccd979bdSMark Fasheh if (status < 0) 1092ccd979bdSMark Fasheh goto read_super_error; 1093ccd979bdSMark Fasheh 1094be0d93f0SAl Viro if (osb->root_inode) 1095be0d93f0SAl Viro inode = igrab(osb->root_inode); 1096be0d93f0SAl Viro 1097ccd979bdSMark Fasheh if (!inode) { 1098ccd979bdSMark Fasheh status = -EIO; 1099ccd979bdSMark Fasheh mlog_errno(status); 1100ccd979bdSMark Fasheh goto read_super_error; 1101ccd979bdSMark Fasheh } 1102ccd979bdSMark Fasheh 110348fde701SAl Viro root = d_make_root(inode); 1104ccd979bdSMark Fasheh if (!root) { 1105ccd979bdSMark Fasheh status = -ENOMEM; 1106ccd979bdSMark Fasheh mlog_errno(status); 1107ccd979bdSMark Fasheh goto read_super_error; 1108ccd979bdSMark Fasheh } 1109ccd979bdSMark Fasheh 1110ccd979bdSMark Fasheh sb->s_root = root; 1111ccd979bdSMark Fasheh 1112ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1113ccd979bdSMark Fasheh 11145f483c4aSGang He osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL, 11155f483c4aSGang He &ocfs2_kset->kobj); 11165f483c4aSGang He if (!osb->osb_dev_kset) { 11175f483c4aSGang He status = -ENOMEM; 11185f483c4aSGang He mlog(ML_ERROR, "Unable to create device kset %s.\n", sb->s_id); 11195f483c4aSGang He goto read_super_error; 11205f483c4aSGang He } 11215f483c4aSGang He 11225f483c4aSGang He /* Create filecheck sysfs related directories/files at 11235f483c4aSGang He * /sys/fs/ocfs2/<devname>/filecheck */ 11245f483c4aSGang He if (ocfs2_filecheck_create_sysfs(osb)) { 11255f483c4aSGang He status = -ENOMEM; 11265f483c4aSGang He mlog(ML_ERROR, "Unable to create filecheck sysfs directory at " 11275f483c4aSGang He "/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id); 11285f483c4aSGang He goto read_super_error; 11295f483c4aSGang He } 11305f483c4aSGang He 1131c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1132c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1133c271c5c2SSunil Mushran else 113419fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1135c271c5c2SSunil Mushran 1136c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1137781ee3e2SSunil Mushran "with %s data mode.\n", 1138c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1139ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1140ccd979bdSMark Fasheh "ordered"); 1141ccd979bdSMark Fasheh 1142ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1143ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1144ccd979bdSMark Fasheh 114519ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 114619ece546SJan Kara * for cluster locks recovery now. That also means that truncation 114719ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 1148bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 114919ece546SJan Kara status = ocfs2_enable_quotas(osb); 115019ece546SJan Kara if (status < 0) { 115119ece546SJan Kara /* We have to err-out specially here because 115219ece546SJan Kara * s_root is already set */ 115319ece546SJan Kara mlog_errno(status); 115419ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 115519ece546SJan Kara wake_up(&osb->osb_mount_event); 115619ece546SJan Kara return status; 115719ece546SJan Kara } 115819ece546SJan Kara } 115919ece546SJan Kara 116019ece546SJan Kara ocfs2_complete_quota_recovery(osb); 116119ece546SJan Kara 116219ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 116319ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 116419ece546SJan Kara wake_up(&osb->osb_mount_event); 116519ece546SJan Kara 1166df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 11678b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1168df152c24SSunil Mushran 1169ccd979bdSMark Fasheh return status; 1170ccd979bdSMark Fasheh 1171ccd979bdSMark Fasheh read_super_error: 1172ccd979bdSMark Fasheh brelse(bh); 1173ccd979bdSMark Fasheh 1174a52370b3SGang He if (status) 1175a52370b3SGang He mlog_errno(status); 1176a52370b3SGang He 1177ccd979bdSMark Fasheh if (osb) { 1178ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1179ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1180ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1181ccd979bdSMark Fasheh } 1182ccd979bdSMark Fasheh 1183ccd979bdSMark Fasheh return status; 1184ccd979bdSMark Fasheh } 1185ccd979bdSMark Fasheh 1186152a0836SAl Viro static struct dentry *ocfs2_mount(struct file_system_type *fs_type, 1187ccd979bdSMark Fasheh int flags, 1188ccd979bdSMark Fasheh const char *dev_name, 1189152a0836SAl Viro void *data) 1190ccd979bdSMark Fasheh { 1191152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); 1192ccd979bdSMark Fasheh } 1193ccd979bdSMark Fasheh 1194ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1195ccd979bdSMark Fasheh .owner = THIS_MODULE, 1196ccd979bdSMark Fasheh .name = "ocfs2", 1197152a0836SAl Viro .mount = ocfs2_mount, 11988ed6b237SGoldwyn Rodrigues .kill_sb = kill_block_super, 11991ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1200ccd979bdSMark Fasheh .next = NULL 1201ccd979bdSMark Fasheh }; 120291417705SEric W. Biederman MODULE_ALIAS_FS("ocfs2"); 1203ccd979bdSMark Fasheh 12045297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12055297aad8SJan Kara struct mount_options *options) 12065297aad8SJan Kara { 12075297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12085297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12095297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12105297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12115297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12125297aad8SJan Kara return 0; 12135297aad8SJan Kara } 12145297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12155297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12165297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12175297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12185297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12195297aad8SJan Kara return 0; 12205297aad8SJan Kara } 12215297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12225297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12235297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12245297aad8SJan Kara "feature is not enabled\n"); 12255297aad8SJan Kara return 0; 12265297aad8SJan Kara } 12275297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12285297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12295297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12305297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12315297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 12325297aad8SJan Kara else 12335297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 12345297aad8SJan Kara } 12355297aad8SJan Kara return 1; 12365297aad8SJan Kara } 12375297aad8SJan Kara 1238ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1239ccd979bdSMark Fasheh char *options, 1240c0123adeSTiger Yang struct mount_options *mopt, 1241ccd979bdSMark Fasheh int is_remount) 1242ccd979bdSMark Fasheh { 124352c303c5SMark Fasheh int status, user_stack = 0; 1244ccd979bdSMark Fasheh char *p; 12452c442719SSunil Mushran u32 tmp; 12463eb5bdf0SNorton.Zhu int token, option; 12473eb5bdf0SNorton.Zhu substring_t args[MAX_OPT_ARGS]; 1248ccd979bdSMark Fasheh 124932a42d39STao Ma trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); 1250ccd979bdSMark Fasheh 1251d147b3d6SMark Fasheh mopt->commit_interval = 0; 12524b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1253c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1254c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 125573c8a800SMark Fasheh mopt->localalloc_opt = -1; 1256b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1257d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 125883f92318SMark Fasheh mopt->dir_resv_level = -1; 1259ccd979bdSMark Fasheh 1260ccd979bdSMark Fasheh if (!options) { 1261ccd979bdSMark Fasheh status = 1; 1262ccd979bdSMark Fasheh goto bail; 1263ccd979bdSMark Fasheh } 1264ccd979bdSMark Fasheh 1265ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1266ccd979bdSMark Fasheh if (!*p) 1267ccd979bdSMark Fasheh continue; 1268ccd979bdSMark Fasheh 1269ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1270ccd979bdSMark Fasheh switch (token) { 1271ccd979bdSMark Fasheh case Opt_hb_local: 1272c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1273ccd979bdSMark Fasheh break; 1274ccd979bdSMark Fasheh case Opt_hb_none: 12752c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; 12762c442719SSunil Mushran break; 12772c442719SSunil Mushran case Opt_hb_global: 12782c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; 1279ccd979bdSMark Fasheh break; 1280ccd979bdSMark Fasheh case Opt_barrier: 1281ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1282ccd979bdSMark Fasheh status = 0; 1283ccd979bdSMark Fasheh goto bail; 1284ccd979bdSMark Fasheh } 1285ccd979bdSMark Fasheh if (option) 1286c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1287ccd979bdSMark Fasheh else 1288c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1289ccd979bdSMark Fasheh break; 1290ccd979bdSMark Fasheh case Opt_intr: 1291c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1292ccd979bdSMark Fasheh break; 1293ccd979bdSMark Fasheh case Opt_nointr: 1294c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1295ccd979bdSMark Fasheh break; 1296ccd979bdSMark Fasheh case Opt_err_panic: 12977d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 12987d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 1299c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1300ccd979bdSMark Fasheh break; 1301ccd979bdSMark Fasheh case Opt_err_ro: 13027d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 1303c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 13047d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_ROFS; 13057d0fb914SGoldwyn Rodrigues break; 13067d0fb914SGoldwyn Rodrigues case Opt_err_cont: 13077d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 13087d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 13097d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_CONT; 1310ccd979bdSMark Fasheh break; 1311ccd979bdSMark Fasheh case Opt_data_ordered: 1312c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1313ccd979bdSMark Fasheh break; 1314ccd979bdSMark Fasheh case Opt_data_writeback: 1315c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1316ccd979bdSMark Fasheh break; 1317cf1d6c76STiger Yang case Opt_user_xattr: 1318cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1319cf1d6c76STiger Yang break; 1320cf1d6c76STiger Yang case Opt_nouser_xattr: 1321cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1322cf1d6c76STiger Yang break; 13237f1a37e3STiger Yang case Opt_atime_quantum: 13247f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13257f1a37e3STiger Yang status = 0; 13267f1a37e3STiger Yang goto bail; 13277f1a37e3STiger Yang } 13287f1a37e3STiger Yang if (option >= 0) 1329c0123adeSTiger Yang mopt->atime_quantum = option; 13307f1a37e3STiger Yang break; 1331baf4661aSSunil Mushran case Opt_slot: 1332baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1333baf4661aSSunil Mushran status = 0; 1334baf4661aSSunil Mushran goto bail; 1335baf4661aSSunil Mushran } 1336baf4661aSSunil Mushran if (option) 1337c0123adeSTiger Yang mopt->slot = (s16)option; 1338baf4661aSSunil Mushran break; 1339d147b3d6SMark Fasheh case Opt_commit: 1340d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1341d147b3d6SMark Fasheh status = 0; 1342d147b3d6SMark Fasheh goto bail; 1343d147b3d6SMark Fasheh } 1344d147b3d6SMark Fasheh if (option < 0) 1345d147b3d6SMark Fasheh return 0; 1346d147b3d6SMark Fasheh if (option == 0) 13472b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1348d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1349d147b3d6SMark Fasheh break; 13502fbe8d1eSSunil Mushran case Opt_localalloc: 13512fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 13522fbe8d1eSSunil Mushran status = 0; 13532fbe8d1eSSunil Mushran goto bail; 13542fbe8d1eSSunil Mushran } 135573c8a800SMark Fasheh if (option >= 0) 13562fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 13572fbe8d1eSSunil Mushran break; 135853fc622bSMark Fasheh case Opt_localflocks: 135953fc622bSMark Fasheh /* 136053fc622bSMark Fasheh * Changing this during remount could race 136153fc622bSMark Fasheh * flock() requests, or "unbalance" existing 136253fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 136353fc622bSMark Fasheh * dropped in the other). If users care enough 136453fc622bSMark Fasheh * to flip locking modes during remount, we 136553fc622bSMark Fasheh * could add a "local" flag to individual 136653fc622bSMark Fasheh * flock structures for proper tracking of 136753fc622bSMark Fasheh * state. 136853fc622bSMark Fasheh */ 136953fc622bSMark Fasheh if (!is_remount) 137053fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 137153fc622bSMark Fasheh break; 1372b61817e1SJoel Becker case Opt_stack: 1373b61817e1SJoel Becker /* Check both that the option we were passed 1374b61817e1SJoel Becker * is of the right length and that it is a proper 1375b61817e1SJoel Becker * string of the right length. 1376b61817e1SJoel Becker */ 1377b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1378b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1379b61817e1SJoel Becker (strnlen(args[0].from, 1380b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1381b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1382b61817e1SJoel Becker mlog(ML_ERROR, 1383b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1384b61817e1SJoel Becker status = 0; 1385b61817e1SJoel Becker goto bail; 1386b61817e1SJoel Becker } 1387b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1388b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1389b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 139052c303c5SMark Fasheh /* 139152c303c5SMark Fasheh * Open code the memcmp here as we don't have 139252c303c5SMark Fasheh * an osb to pass to 139352c303c5SMark Fasheh * ocfs2_userspace_stack(). 139452c303c5SMark Fasheh */ 139552c303c5SMark Fasheh if (memcmp(mopt->cluster_stack, 139652c303c5SMark Fasheh OCFS2_CLASSIC_CLUSTER_STACK, 139752c303c5SMark Fasheh OCFS2_STACK_LABEL_LEN)) 139852c303c5SMark Fasheh user_stack = 1; 1399b61817e1SJoel Becker break; 140012462f1dSJoel Becker case Opt_inode64: 140112462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 140212462f1dSJoel Becker break; 140319ece546SJan Kara case Opt_usrquota: 140419ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 140519ece546SJan Kara break; 140619ece546SJan Kara case Opt_grpquota: 140719ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 140819ece546SJan Kara break; 14097bdb0d18STristan Ye case Opt_coherency_buffered: 14107bdb0d18STristan Ye mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; 14117bdb0d18STristan Ye break; 14127bdb0d18STristan Ye case Opt_coherency_full: 14137bdb0d18STristan Ye mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; 14147bdb0d18STristan Ye break; 1415a68979b8STiger Yang case Opt_acl: 1416a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14175297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1418a68979b8STiger Yang break; 1419a68979b8STiger Yang case Opt_noacl: 14205297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1421a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1422a68979b8STiger Yang break; 1423d02f00ccSMark Fasheh case Opt_resv_level: 1424d02f00ccSMark Fasheh if (is_remount) 1425d02f00ccSMark Fasheh break; 1426d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1427d02f00ccSMark Fasheh status = 0; 1428d02f00ccSMark Fasheh goto bail; 1429d02f00ccSMark Fasheh } 1430d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1431d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1432d02f00ccSMark Fasheh mopt->resv_level = option; 1433d02f00ccSMark Fasheh break; 143483f92318SMark Fasheh case Opt_dir_resv_level: 143583f92318SMark Fasheh if (is_remount) 143683f92318SMark Fasheh break; 143783f92318SMark Fasheh if (match_int(&args[0], &option)) { 143883f92318SMark Fasheh status = 0; 143983f92318SMark Fasheh goto bail; 144083f92318SMark Fasheh } 144183f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 144283f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 144383f92318SMark Fasheh mopt->dir_resv_level = option; 144483f92318SMark Fasheh break; 14451dfeb768Salex chen case Opt_journal_async_commit: 14461dfeb768Salex chen mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT; 14471dfeb768Salex chen break; 1448ccd979bdSMark Fasheh default: 1449ccd979bdSMark Fasheh mlog(ML_ERROR, 1450ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1451ccd979bdSMark Fasheh "or missing value\n", p); 1452ccd979bdSMark Fasheh status = 0; 1453ccd979bdSMark Fasheh goto bail; 1454ccd979bdSMark Fasheh } 1455ccd979bdSMark Fasheh } 1456ccd979bdSMark Fasheh 145752c303c5SMark Fasheh if (user_stack == 0) { 14582c442719SSunil Mushran /* Ensure only one heartbeat mode */ 145952c303c5SMark Fasheh tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | 146052c303c5SMark Fasheh OCFS2_MOUNT_HB_GLOBAL | 14612c442719SSunil Mushran OCFS2_MOUNT_HB_NONE); 14622c442719SSunil Mushran if (hweight32(tmp) != 1) { 14632c442719SSunil Mushran mlog(ML_ERROR, "Invalid heartbeat mount options\n"); 14642c442719SSunil Mushran status = 0; 14652c442719SSunil Mushran goto bail; 14662c442719SSunil Mushran } 146752c303c5SMark Fasheh } 14682c442719SSunil Mushran 1469ccd979bdSMark Fasheh status = 1; 1470ccd979bdSMark Fasheh 1471ccd979bdSMark Fasheh bail: 1472ccd979bdSMark Fasheh return status; 1473ccd979bdSMark Fasheh } 1474ccd979bdSMark Fasheh 147534c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root) 1476d550071cSSunil Mushran { 147734c80b1dSAl Viro struct ocfs2_super *osb = OCFS2_SB(root->d_sb); 1478d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1479ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1480d550071cSSunil Mushran 14812c442719SSunil Mushran if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { 14822c442719SSunil Mushran seq_printf(s, ",_netdev"); 1483d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 14842c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_LOCAL); 1485d550071cSSunil Mushran else 14862c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_GLOBAL); 14872c442719SSunil Mushran } else 14882c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_NONE); 1489d550071cSSunil Mushran 1490d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1491d550071cSSunil Mushran seq_printf(s, ",nointr"); 1492d550071cSSunil Mushran 1493d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1494d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1495d550071cSSunil Mushran else 1496d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1497d550071cSSunil Mushran 1498d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1499d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1500d550071cSSunil Mushran 1501d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1502d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 15037d0fb914SGoldwyn Rodrigues else if (opts & OCFS2_MOUNT_ERRORS_CONT) 15047d0fb914SGoldwyn Rodrigues seq_printf(s, ",errors=continue"); 1505d550071cSSunil Mushran else 1506d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1507d550071cSSunil Mushran 1508d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1509d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1510d550071cSSunil Mushran 1511d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1512d550071cSSunil Mushran 1513d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1514d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1515d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1516d147b3d6SMark Fasheh 1517ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15186b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1519ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15202fbe8d1eSSunil Mushran 152153fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 152253fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 152353fc622bSMark Fasheh 1524b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1525a068acf2SKees Cook seq_show_option_n(s, "cluster_stack", osb->osb_cluster_stack, 1526a068acf2SKees Cook OCFS2_STACK_LABEL_LEN); 152719ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 152819ece546SJan Kara seq_printf(s, ",usrquota"); 152919ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 153019ece546SJan Kara seq_printf(s, ",grpquota"); 1531b61817e1SJoel Becker 15327bdb0d18STristan Ye if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) 15337bdb0d18STristan Ye seq_printf(s, ",coherency=buffered"); 15347bdb0d18STristan Ye else 15357bdb0d18STristan Ye seq_printf(s, ",coherency=full"); 15367bdb0d18STristan Ye 1537b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1538b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1539b0f73cfcSSunil Mushran else 1540b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1541b0f73cfcSSunil Mushran 154212462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 154312462f1dSJoel Becker seq_printf(s, ",inode64"); 154412462f1dSJoel Becker 1545a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1546a68979b8STiger Yang seq_printf(s, ",acl"); 1547a68979b8STiger Yang else 1548a68979b8STiger Yang seq_printf(s, ",noacl"); 1549a68979b8STiger Yang 1550d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1551d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1552d02f00ccSMark Fasheh 155383f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 155483f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 155583f92318SMark Fasheh 15561dfeb768Salex chen if (opts & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 15571dfeb768Salex chen seq_printf(s, ",journal_async_commit"); 15581dfeb768Salex chen 1559d550071cSSunil Mushran return 0; 1560d550071cSSunil Mushran } 1561d550071cSSunil Mushran 1562ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1563ccd979bdSMark Fasheh { 1564c18ceab0SWengang Wang int status; 1565a11f7e63SMark Fasheh 1566ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1567342827d7SAl Viro if (status < 0) 1568342827d7SAl Viro goto out1; 1569ccd979bdSMark Fasheh 1570ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1571342827d7SAl Viro if (status < 0) 1572342827d7SAl Viro goto out2; 1573ccd979bdSMark Fasheh 1574ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1575ccd979bdSMark Fasheh 157663e0c48aSJoel Becker ocfs2_set_locking_protocol(); 157763e0c48aSJoel Becker 15789e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1579342827d7SAl Viro if (status < 0) 158035ddf78eSjiangyiwen goto out3; 1581342827d7SAl Viro status = register_filesystem(&ocfs2_fs_type); 1582342827d7SAl Viro if (!status) 1583342827d7SAl Viro return 0; 1584ccd979bdSMark Fasheh 1585342827d7SAl Viro unregister_quota_format(&ocfs2_quota_format); 1586342827d7SAl Viro out3: 158735ddf78eSjiangyiwen debugfs_remove(ocfs2_debugfs_root); 1588342827d7SAl Viro ocfs2_free_mem_caches(); 1589342827d7SAl Viro out2: 1590342827d7SAl Viro exit_ocfs2_uptodate_cache(); 1591342827d7SAl Viro out1: 1592342827d7SAl Viro mlog_errno(status); 1593342827d7SAl Viro return status; 1594ccd979bdSMark Fasheh } 1595ccd979bdSMark Fasheh 1596ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1597ccd979bdSMark Fasheh { 15989e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 15999e33d69fSJan Kara 1600ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1601ccd979bdSMark Fasheh 1602ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1603ccd979bdSMark Fasheh 1604ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1605ccd979bdSMark Fasheh 1606ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1607ccd979bdSMark Fasheh } 1608ccd979bdSMark Fasheh 1609ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1610ccd979bdSMark Fasheh { 161132a42d39STao Ma trace_ocfs2_put_super(sb); 1612ccd979bdSMark Fasheh 1613ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1614ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1615ccd979bdSMark Fasheh } 1616ccd979bdSMark Fasheh 1617726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1618ccd979bdSMark Fasheh { 1619ccd979bdSMark Fasheh struct ocfs2_super *osb; 1620ccd979bdSMark Fasheh u32 numbits, freebits; 1621ccd979bdSMark Fasheh int status; 1622ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1623ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1624ccd979bdSMark Fasheh struct inode *inode = NULL; 1625ccd979bdSMark Fasheh 162632a42d39STao Ma trace_ocfs2_statfs(dentry->d_sb, buf); 1627ccd979bdSMark Fasheh 1628726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1629ccd979bdSMark Fasheh 1630ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1631ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1632ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1633ccd979bdSMark Fasheh if (!inode) { 1634ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1635ccd979bdSMark Fasheh status = -EIO; 1636ccd979bdSMark Fasheh goto bail; 1637ccd979bdSMark Fasheh } 1638ccd979bdSMark Fasheh 1639e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1640ccd979bdSMark Fasheh if (status < 0) { 1641ccd979bdSMark Fasheh mlog_errno(status); 1642ccd979bdSMark Fasheh goto bail; 1643ccd979bdSMark Fasheh } 1644ccd979bdSMark Fasheh 1645ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1646ccd979bdSMark Fasheh 1647ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1648ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1649ccd979bdSMark Fasheh 1650ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1651726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1652ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1653ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1654ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1655ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1656ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1657ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1658ccd979bdSMark Fasheh buf->f_files = numbits; 1659ccd979bdSMark Fasheh buf->f_ffree = freebits; 1660837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1661837711f8SColy Li & 0xFFFFFFFFUL; 1662837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1663837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1664ccd979bdSMark Fasheh 1665ccd979bdSMark Fasheh brelse(bh); 1666ccd979bdSMark Fasheh 1667e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1668ccd979bdSMark Fasheh status = 0; 1669ccd979bdSMark Fasheh bail: 1670ccd979bdSMark Fasheh iput(inode); 1671ccd979bdSMark Fasheh 1672c1e8d35eSTao Ma if (status) 1673c1e8d35eSTao Ma mlog_errno(status); 1674ccd979bdSMark Fasheh 1675ccd979bdSMark Fasheh return status; 1676ccd979bdSMark Fasheh } 1677ccd979bdSMark Fasheh 167851cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1679ccd979bdSMark Fasheh { 1680ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1681ccd979bdSMark Fasheh 1682ccd979bdSMark Fasheh oi->ip_flags = 0; 1683ccd979bdSMark Fasheh oi->ip_open_count = 0; 1684ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 168583418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1686ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 16874506cfb6SRyan Ding INIT_LIST_HEAD(&oi->ip_unwritten_list); 1688ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1689ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1690cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1691251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1692ccd979bdSMark Fasheh 1693ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1694ccd979bdSMark Fasheh oi->ip_clusters = 0; 1695ccd979bdSMark Fasheh 16964fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 16974fe370afSMark Fasheh 1698ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1699e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 170050008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1701ccd979bdSMark Fasheh 17028cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 17036e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1704ccd979bdSMark Fasheh 1705ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1706ccd979bdSMark Fasheh } 1707ccd979bdSMark Fasheh 1708ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1709ccd979bdSMark Fasheh { 1710ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1711ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1712fffb60f9SPaul Jackson 0, 1713fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17145d097056SVladimir Davydov SLAB_MEM_SPREAD|SLAB_ACCOUNT), 171520c2df83SPaul Mundt ocfs2_inode_init_once); 17169e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17179e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17189e33d69fSJan Kara 0, 17199e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17209e33d69fSJan Kara SLAB_MEM_SPREAD), 17219e33d69fSJan Kara NULL); 17229e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17239e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17249e33d69fSJan Kara 0, 17259e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 17269e33d69fSJan Kara NULL); 17279e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 17289e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 17299e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 17309e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17319e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1732ccd979bdSMark Fasheh return -ENOMEM; 17339e33d69fSJan Kara } 1734ccd979bdSMark Fasheh 1735ccd979bdSMark Fasheh return 0; 1736ccd979bdSMark Fasheh } 1737ccd979bdSMark Fasheh 1738ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1739ccd979bdSMark Fasheh { 17408c0a8537SKirill A. Shutemov /* 17418c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 17428c0a8537SKirill A. Shutemov * destroy cache. 17438c0a8537SKirill A. Shutemov */ 17448c0a8537SKirill A. Shutemov rcu_barrier(); 1745ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1746ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 17479e33d69fSJan Kara 17489e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17499e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 17509e33d69fSJan Kara 17519e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 17529e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1753ccd979bdSMark Fasheh } 1754ccd979bdSMark Fasheh 1755ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1756ccd979bdSMark Fasheh struct buffer_head **bh, 1757ccd979bdSMark Fasheh int block, 1758ccd979bdSMark Fasheh int sect_size) 1759ccd979bdSMark Fasheh { 1760ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1761ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1762ccd979bdSMark Fasheh return -EIO; 1763ccd979bdSMark Fasheh } 1764ccd979bdSMark Fasheh 1765ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1766ccd979bdSMark Fasheh if (!*bh) { 17677391a294SRui Xiang mlog_errno(-ENOMEM); 17687391a294SRui Xiang return -ENOMEM; 1769ccd979bdSMark Fasheh } 1770ccd979bdSMark Fasheh lock_buffer(*bh); 1771ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1772ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1773ccd979bdSMark Fasheh unlock_buffer(*bh); 1774dfec8a14SMike Christie ll_rw_block(REQ_OP_READ, 0, 1, bh); 1775ccd979bdSMark Fasheh wait_on_buffer(*bh); 177628d57d43Swengang wang if (!buffer_uptodate(*bh)) { 177728d57d43Swengang wang mlog_errno(-EIO); 177828d57d43Swengang wang brelse(*bh); 177928d57d43Swengang wang *bh = NULL; 178028d57d43Swengang wang return -EIO; 178128d57d43Swengang wang } 178228d57d43Swengang wang 1783ccd979bdSMark Fasheh return 0; 1784ccd979bdSMark Fasheh } 1785ccd979bdSMark Fasheh 1786ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1787ccd979bdSMark Fasheh { 1788ccd979bdSMark Fasheh int status = 0; 1789ccd979bdSMark Fasheh int unlock_super = 0; 1790ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1791ccd979bdSMark Fasheh 1792ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1793ccd979bdSMark Fasheh goto leave; 1794ccd979bdSMark Fasheh 17955500ab4eSGang He mutex_init(&osb->obs_trim_fs_mutex); 17965500ab4eSGang He 1797ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1798ccd979bdSMark Fasheh if (status < 0) { 1799ccd979bdSMark Fasheh mlog_errno(status); 1800a52370b3SGang He if (status == -EBADR && ocfs2_userspace_stack(osb)) 1801a52370b3SGang He mlog(ML_ERROR, "couldn't mount because cluster name on" 1802a52370b3SGang He " disk does not match the running cluster name.\n"); 1803ccd979bdSMark Fasheh goto leave; 1804ccd979bdSMark Fasheh } 1805ccd979bdSMark Fasheh 1806ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1807ccd979bdSMark Fasheh if (status < 0) { 1808ccd979bdSMark Fasheh mlog_errno(status); 1809ccd979bdSMark Fasheh goto leave; 1810ccd979bdSMark Fasheh } 1811ccd979bdSMark Fasheh unlock_super = 1; 1812ccd979bdSMark Fasheh 1813ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1814ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1815ccd979bdSMark Fasheh if (status < 0) { 1816ccd979bdSMark Fasheh mlog_errno(status); 1817ccd979bdSMark Fasheh goto leave; 1818ccd979bdSMark Fasheh } 1819ccd979bdSMark Fasheh 1820ccd979bdSMark Fasheh /* load all node-local system inodes */ 1821ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1822ccd979bdSMark Fasheh if (status < 0) { 1823ccd979bdSMark Fasheh mlog_errno(status); 1824ccd979bdSMark Fasheh goto leave; 1825ccd979bdSMark Fasheh } 1826ccd979bdSMark Fasheh 1827ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1828ccd979bdSMark Fasheh if (status < 0) { 1829ccd979bdSMark Fasheh mlog_errno(status); 1830ccd979bdSMark Fasheh goto leave; 1831ccd979bdSMark Fasheh } 1832ccd979bdSMark Fasheh 1833ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 183406c59bb8STao Ma if (status < 0) 1835ccd979bdSMark Fasheh mlog_errno(status); 1836c271c5c2SSunil Mushran 1837ccd979bdSMark Fasheh leave: 1838ccd979bdSMark Fasheh if (unlock_super) 1839ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1840ccd979bdSMark Fasheh 1841ccd979bdSMark Fasheh return status; 1842ccd979bdSMark Fasheh } 1843ccd979bdSMark Fasheh 1844ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1845ccd979bdSMark Fasheh { 1846286eaa95SJoel Becker int tmp, hangup_needed = 0; 1847ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 184899d7a882SGoldwyn Rodrigues char nodestr[12]; 1849ccd979bdSMark Fasheh 185032a42d39STao Ma trace_ocfs2_dismount_volume(sb); 1851ccd979bdSMark Fasheh 1852ccd979bdSMark Fasheh BUG_ON(!sb); 1853ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1854ccd979bdSMark Fasheh BUG_ON(!osb); 1855ccd979bdSMark Fasheh 18565f483c4aSGang He /* Remove file check sysfs related directores/files, 18575f483c4aSGang He * and wait for the pending file check operations */ 18585f483c4aSGang He ocfs2_filecheck_remove_sysfs(osb); 18595f483c4aSGang He 18605f483c4aSGang He kset_unregister(osb->osb_dev_kset); 18615f483c4aSGang He 1862692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1863692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1864692684e1SSunil Mushran 186519ece546SJan Kara ocfs2_disable_quotas(osb); 186619ece546SJan Kara 1867e3a767b6SJan Kara /* All dquots should be freed by now */ 1868e3a767b6SJan Kara WARN_ON(!llist_empty(&osb->dquot_drop_list)); 1869e3a767b6SJan Kara /* Wait for worker to be done with the work structure in osb */ 1870e3a767b6SJan Kara cancel_work_sync(&osb->dquot_drop_work); 1871e3a767b6SJan Kara 1872ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1873ccd979bdSMark Fasheh 1874b253bfd8SXue jiufei ocfs2_truncate_log_shutdown(osb); 1875b253bfd8SXue jiufei 1876553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1877553abd04SJoel Becker ocfs2_recovery_exit(osb); 1878ccd979bdSMark Fasheh 1879ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1880ccd979bdSMark Fasheh 1881ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1882ccd979bdSMark Fasheh 1883374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1884374a263eSTao Ma 18854670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 18864670c46dSJoel Becker * all the steps which depended on that to complete. */ 18874670c46dSJoel Becker if (osb->cconn) { 1888ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1889ccd979bdSMark Fasheh if (tmp < 0) { 1890ccd979bdSMark Fasheh mlog_errno(tmp); 1891ccd979bdSMark Fasheh return; 1892ccd979bdSMark Fasheh } 189319b613d4SMark Fasheh } 1894ccd979bdSMark Fasheh 1895ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1896ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1897ccd979bdSMark Fasheh 18984670c46dSJoel Becker if (osb->cconn) 1899ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1900ccd979bdSMark Fasheh 1901ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1902ccd979bdSMark Fasheh 19036953b4c0SJoel Becker /* 19046953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19056953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19066953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19076953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19086953b4c0SJoel Becker */ 190903efed8aSTiger Yang if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str && 191003efed8aSTiger Yang !ocfs2_is_hard_readonly(osb)) 1911286eaa95SJoel Becker hangup_needed = 1; 1912286eaa95SJoel Becker 1913286eaa95SJoel Becker if (osb->cconn) 1914286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1915286eaa95SJoel Becker 191673be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 19175e7a3ed9SGreg Kroah-Hartman debugfs_remove_recursive(osb->osb_debug_root); 1918286eaa95SJoel Becker 1919286eaa95SJoel Becker if (hangup_needed) 19206953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1921ccd979bdSMark Fasheh 1922ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1923ccd979bdSMark Fasheh 1924c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1925c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1926c271c5c2SSunil Mushran else 192719fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1928c271c5c2SSunil Mushran 1929c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1930c271c5c2SSunil Mushran osb->dev_str, nodestr); 1931ccd979bdSMark Fasheh 1932ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1933ccd979bdSMark Fasheh kfree(osb); 1934ccd979bdSMark Fasheh sb->s_dev = 0; 1935ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1936ccd979bdSMark Fasheh } 1937ccd979bdSMark Fasheh 1938ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1939ccd979bdSMark Fasheh unsigned uuid_bytes) 1940ccd979bdSMark Fasheh { 1941ccd979bdSMark Fasheh int i, ret; 1942ccd979bdSMark Fasheh char *ptr; 1943ccd979bdSMark Fasheh 1944ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1945ccd979bdSMark Fasheh 1946cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1947ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1948ccd979bdSMark Fasheh return -ENOMEM; 1949ccd979bdSMark Fasheh 1950ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1951ccd979bdSMark Fasheh /* print with null */ 1952ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1953ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1954ccd979bdSMark Fasheh return -EINVAL; 1955ccd979bdSMark Fasheh /* then only advance past the last char */ 1956ccd979bdSMark Fasheh ptr += 2; 1957ccd979bdSMark Fasheh } 1958ccd979bdSMark Fasheh 1959ccd979bdSMark Fasheh return 0; 1960ccd979bdSMark Fasheh } 1961ccd979bdSMark Fasheh 19623bdb8efdSPatrick J. LoPresti /* Make sure entire volume is addressable by our journal. Requires 19633bdb8efdSPatrick J. LoPresti osb_clusters_at_boot to be valid and for the journal to have been 19643bdb8efdSPatrick J. LoPresti initialized by ocfs2_journal_init(). */ 19653bdb8efdSPatrick J. LoPresti static int ocfs2_journal_addressable(struct ocfs2_super *osb) 19663bdb8efdSPatrick J. LoPresti { 19673bdb8efdSPatrick J. LoPresti int status = 0; 19683bdb8efdSPatrick J. LoPresti u64 max_block = 19693bdb8efdSPatrick J. LoPresti ocfs2_clusters_to_blocks(osb->sb, 19703bdb8efdSPatrick J. LoPresti osb->osb_clusters_at_boot) - 1; 19713bdb8efdSPatrick J. LoPresti 19723bdb8efdSPatrick J. LoPresti /* 32-bit block number is always OK. */ 19733bdb8efdSPatrick J. LoPresti if (max_block <= (u32)~0ULL) 19743bdb8efdSPatrick J. LoPresti goto out; 19753bdb8efdSPatrick J. LoPresti 19763bdb8efdSPatrick J. LoPresti /* Volume is "huge", so see if our journal is new enough to 19773bdb8efdSPatrick J. LoPresti support it. */ 19783bdb8efdSPatrick J. LoPresti if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, 19793bdb8efdSPatrick J. LoPresti OCFS2_FEATURE_COMPAT_JBD2_SB) && 19803bdb8efdSPatrick J. LoPresti jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, 19813bdb8efdSPatrick J. LoPresti JBD2_FEATURE_INCOMPAT_64BIT))) { 19823bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "The journal cannot address the entire volume. " 19833bdb8efdSPatrick J. LoPresti "Enable the 'block64' journal option with tunefs.ocfs2"); 19843bdb8efdSPatrick J. LoPresti status = -EFBIG; 19853bdb8efdSPatrick J. LoPresti goto out; 19863bdb8efdSPatrick J. LoPresti } 19873bdb8efdSPatrick J. LoPresti 19883bdb8efdSPatrick J. LoPresti out: 19893bdb8efdSPatrick J. LoPresti return status; 19903bdb8efdSPatrick J. LoPresti } 19913bdb8efdSPatrick J. LoPresti 1992ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1993ccd979bdSMark Fasheh struct buffer_head *bh, 199473be192bSJoel Becker int sector_size, 199573be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 1996ccd979bdSMark Fasheh { 1997bddb8eb3SDenis Cheng int status; 19985a254031SMark Fasheh int i, cbits, bbits; 19995a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2000ccd979bdSMark Fasheh struct inode *inode = NULL; 2001ccd979bdSMark Fasheh struct ocfs2_journal *journal; 2002ccd979bdSMark Fasheh struct ocfs2_super *osb; 20033bdb8efdSPatrick J. LoPresti u64 total_blocks; 2004ccd979bdSMark Fasheh 2005cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2006ccd979bdSMark Fasheh if (!osb) { 2007ccd979bdSMark Fasheh status = -ENOMEM; 2008ccd979bdSMark Fasheh mlog_errno(status); 2009ccd979bdSMark Fasheh goto bail; 2010ccd979bdSMark Fasheh } 2011ccd979bdSMark Fasheh 2012ccd979bdSMark Fasheh sb->s_fs_info = osb; 2013ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2014ba87167cSAl Viro sb->s_d_op = &ocfs2_dentry_ops; 2015ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 2016664dbd5fSJan Kara sb->s_qcop = &dquot_quotactl_sysfile_ops; 201719ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 20181c92ec67SJan Kara sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP; 2019cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2020e0dceaf0SMark Fasheh sb->s_time_gran = 1; 20211751e8a6SLinus Torvalds sb->s_flags |= SB_NOATIME; 2022ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20235a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20245a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20255a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 202685787090SChristoph Hellwig memcpy(&sb->s_uuid, di->id2.i_super.s_uuid, 202758be19dcSVladimir Davydov sizeof(di->id2.i_super.s_uuid)); 2028ccd979bdSMark Fasheh 20299b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20309b7895efSMark Fasheh 20319b7895efSMark Fasheh for (i = 0; i < 3; i++) 20329b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 20339b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 20349b7895efSMark Fasheh 2035ccd979bdSMark Fasheh osb->sb = sb; 2036ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2037ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2038ccd979bdSMark Fasheh 203934d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 204034d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 204134d024f8SMark Fasheh osb->dc_work_sequence = 0; 204234d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2043ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2044ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2045ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2046c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2047b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2048ccd979bdSMark Fasheh 204943b10a20Sjiangyiwen mutex_init(&osb->system_file_mutex); 205043b10a20Sjiangyiwen 2051ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2052ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2053ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2054ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2055ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2056ccd979bdSMark Fasheh 205773be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 205873be192bSJoel Becker osb->osb_ecc_stats = *stats; 205973be192bSJoel Becker 2060ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2061ccd979bdSMark Fasheh 2062ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2063ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2064ccd979bdSMark Fasheh 206575d9bbc7SGoldwyn Rodrigues osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 206675d9bbc7SGoldwyn Rodrigues if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 206775d9bbc7SGoldwyn Rodrigues mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 206875d9bbc7SGoldwyn Rodrigues osb->max_slots); 206975d9bbc7SGoldwyn Rodrigues status = -EINVAL; 207075d9bbc7SGoldwyn Rodrigues goto bail; 207175d9bbc7SGoldwyn Rodrigues } 207275d9bbc7SGoldwyn Rodrigues 20738b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 20748b712cd5SJeff Mahoney 2075553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2076553abd04SJoel Becker if (status) { 2077553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2078553abd04SJoel Becker mlog_errno(status); 2079553abd04SJoel Becker goto bail; 2080553abd04SJoel Becker } 2081ccd979bdSMark Fasheh 2082ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2083ccd979bdSMark Fasheh 20847f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 20857f1a37e3STiger Yang 2086ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2087ccd979bdSMark Fasheh 20888154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 20898154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2090fdd77704STiger Yang 2091ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2092ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 20939c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2094ccd979bdSMark Fasheh 2095ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2096ccd979bdSMark Fasheh 2097d02f00ccSMark Fasheh status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2098d02f00ccSMark Fasheh if (status) { 2099d02f00ccSMark Fasheh mlog_errno(status); 2100d02f00ccSMark Fasheh goto bail; 2101d02f00ccSMark Fasheh } 2102d02f00ccSMark Fasheh 2103ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2104ccd979bdSMark Fasheh if (!osb->vol_label) { 2105ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2106ccd979bdSMark Fasheh status = -ENOMEM; 2107ccd979bdSMark Fasheh goto bail; 2108ccd979bdSMark Fasheh } 2109ccd979bdSMark Fasheh 2110539d8264SSunil Mushran osb->slot_recovery_generations = 2111539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2112539d8264SSunil Mushran GFP_KERNEL); 2113539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2114539d8264SSunil Mushran status = -ENOMEM; 2115539d8264SSunil Mushran mlog_errno(status); 2116539d8264SSunil Mushran goto bail; 2117539d8264SSunil Mushran } 2118539d8264SSunil Mushran 2119b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2120b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2121b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2122b4df6ed8SMark Fasheh GFP_KERNEL); 2123b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2124b4df6ed8SMark Fasheh status = -ENOMEM; 2125b4df6ed8SMark Fasheh mlog_errno(status); 2126b4df6ed8SMark Fasheh goto bail; 2127b4df6ed8SMark Fasheh } 2128b4df6ed8SMark Fasheh 2129374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2130374a263eSTao Ma 2131ccd979bdSMark Fasheh osb->s_feature_compat = 2132ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2133ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2134ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2135ccd979bdSMark Fasheh osb->s_feature_incompat = 2136ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2137ccd979bdSMark Fasheh 2138ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2139ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2140ccd979bdSMark Fasheh "optional features (%x).\n", i); 2141ccd979bdSMark Fasheh status = -EINVAL; 2142ccd979bdSMark Fasheh goto bail; 2143ccd979bdSMark Fasheh } 2144bc98a42cSDavid Howells if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2145ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2146ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2147ccd979bdSMark Fasheh status = -EINVAL; 2148ccd979bdSMark Fasheh goto bail; 2149ccd979bdSMark Fasheh } 2150ccd979bdSMark Fasheh 215198f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 215298f486f2SSunil Mushran osb->osb_stackflags = 215398f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2154c74a3bddSGoldwyn Rodrigues strlcpy(osb->osb_cluster_stack, 2155b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2156c74a3bddSGoldwyn Rodrigues OCFS2_STACK_LABEL_LEN + 1); 2157b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2158b61817e1SJoel Becker mlog(ML_ERROR, 2159b61817e1SJoel Becker "couldn't mount because of an invalid " 2160b61817e1SJoel Becker "cluster stack label (%s) \n", 2161b61817e1SJoel Becker osb->osb_cluster_stack); 2162b61817e1SJoel Becker status = -EINVAL; 2163b61817e1SJoel Becker goto bail; 2164b61817e1SJoel Becker } 2165c74a3bddSGoldwyn Rodrigues strlcpy(osb->osb_cluster_name, 2166c74a3bddSGoldwyn Rodrigues OCFS2_RAW_SB(di)->s_cluster_info.ci_cluster, 2167c74a3bddSGoldwyn Rodrigues OCFS2_CLUSTER_NAME_LEN + 1); 2168b61817e1SJoel Becker } else { 2169b61817e1SJoel Becker /* The empty string is identical with classic tools that 2170b61817e1SJoel Becker * don't know about s_cluster_info. */ 2171b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2172b61817e1SJoel Becker } 2173b61817e1SJoel Becker 2174ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2175ccd979bdSMark Fasheh 2176ccd979bdSMark Fasheh /* FIXME 2177ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2178ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2179ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2180ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2181ccd979bdSMark Fasheh * be my guest. 2182ccd979bdSMark Fasheh */ 2183ccd979bdSMark Fasheh /* initialize our journal structure */ 2184ccd979bdSMark Fasheh 2185cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2186ccd979bdSMark Fasheh if (!journal) { 2187ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2188ccd979bdSMark Fasheh status = -ENOMEM; 2189ccd979bdSMark Fasheh goto bail; 2190ccd979bdSMark Fasheh } 2191ccd979bdSMark Fasheh osb->journal = journal; 2192ccd979bdSMark Fasheh journal->j_osb = osb; 2193ccd979bdSMark Fasheh 2194ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2195ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2196ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2197ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2198ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2199ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2200c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2201ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2202ccd979bdSMark Fasheh 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; 2216ccd979bdSMark Fasheh goto bail; 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; 2228ccd979bdSMark Fasheh goto bail; 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; 2235ccd979bdSMark Fasheh goto bail; 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); 2255ccd979bdSMark Fasheh goto bail; 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); 2264ccd979bdSMark Fasheh goto bail; 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); 2275ccd979bdSMark Fasheh goto bail; 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); 2288ccd979bdSMark Fasheh goto bail; 2289ccd979bdSMark Fasheh } 22909de16262SVladimir Davydov cleancache_init_shared_fs(sb); 2291ccd979bdSMark Fasheh 229244be9756SBhaktipriya Shridhar osb->ocfs2_wq = alloc_ordered_workqueue("ocfs2_wq", WQ_MEM_RECLAIM); 229335ddf78eSjiangyiwen if (!osb->ocfs2_wq) { 229435ddf78eSjiangyiwen status = -ENOMEM; 229535ddf78eSjiangyiwen mlog_errno(status); 229635ddf78eSjiangyiwen } 229735ddf78eSjiangyiwen 2298ccd979bdSMark Fasheh bail: 2299ccd979bdSMark Fasheh return status; 2300ccd979bdSMark Fasheh } 2301ccd979bdSMark Fasheh 2302ccd979bdSMark Fasheh /* 2303ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2304ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2305ccd979bdSMark Fasheh * 0 on success 2306ccd979bdSMark Fasheh */ 2307ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2308ccd979bdSMark Fasheh struct buffer_head *bh, 230973be192bSJoel Becker u32 blksz, 231073be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2311ccd979bdSMark Fasheh { 2312ccd979bdSMark Fasheh int status = -EAGAIN; 2313ccd979bdSMark Fasheh 2314ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2315ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2316d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2317d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2318d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2319d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2320d030cc97SJoel Becker bh->b_size, 232173be192bSJoel Becker &di->i_check, 232273be192bSJoel Becker stats); 2323d030cc97SJoel Becker if (status) 2324d030cc97SJoel Becker goto out; 2325d030cc97SJoel Becker } 2326ccd979bdSMark Fasheh status = -EINVAL; 2327ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2328ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2329ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2330ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2331ccd979bdSMark Fasheh blksz); 2332ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2333ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2334ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2335ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2336ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2337ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2338ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2339ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2340ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2341ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2342ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2343ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2344b0697053SMark Fasheh "found %llu, should be %llu\n", 23451ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2346b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2347ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2348ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2349ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2350ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2351ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2352ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2353ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2354ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2355ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2356ccd979bdSMark Fasheh mlog(ML_ERROR, 2357ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2358ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2359ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2360ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2361ccd979bdSMark Fasheh } else { 2362ccd979bdSMark Fasheh /* found it! */ 2363ccd979bdSMark Fasheh status = 0; 2364ccd979bdSMark Fasheh } 2365ccd979bdSMark Fasheh } 2366ccd979bdSMark Fasheh 2367d030cc97SJoel Becker out: 2368c1e8d35eSTao Ma if (status && status != -EAGAIN) 2369c1e8d35eSTao Ma mlog_errno(status); 2370ccd979bdSMark Fasheh return status; 2371ccd979bdSMark Fasheh } 2372ccd979bdSMark Fasheh 2373ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2374ccd979bdSMark Fasheh { 2375bddb8eb3SDenis Cheng int status; 2376ccd979bdSMark Fasheh int dirty; 2377c271c5c2SSunil Mushran int local; 2378ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2379ccd979bdSMark Fasheh * recover 2380ccd979bdSMark Fasheh * ourselves. */ 2381ccd979bdSMark Fasheh 2382ccd979bdSMark Fasheh /* Init our journal object. */ 2383ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2384ccd979bdSMark Fasheh if (status < 0) { 2385ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2386ccd979bdSMark Fasheh goto finally; 2387ccd979bdSMark Fasheh } 2388ccd979bdSMark Fasheh 23893bdb8efdSPatrick J. LoPresti /* Now that journal has been initialized, check to make sure 23903bdb8efdSPatrick J. LoPresti entire volume is addressable. */ 23913bdb8efdSPatrick J. LoPresti status = ocfs2_journal_addressable(osb); 23923bdb8efdSPatrick J. LoPresti if (status) 23933bdb8efdSPatrick J. LoPresti goto finally; 23943bdb8efdSPatrick J. LoPresti 2395ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2396ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2397ccd979bdSMark Fasheh * dirty work for us :) */ 2398ccd979bdSMark Fasheh if (!dirty) { 2399ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2400ccd979bdSMark Fasheh if (status < 0) { 2401ccd979bdSMark Fasheh mlog_errno(status); 2402ccd979bdSMark Fasheh goto finally; 2403ccd979bdSMark Fasheh } 2404ccd979bdSMark Fasheh } else { 2405619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: File system on device (%s) was not " 2406619c200dSSunil Mushran "unmounted cleanly, recovering it.\n", osb->dev_str); 2407ccd979bdSMark Fasheh } 2408ccd979bdSMark Fasheh 2409c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2410c271c5c2SSunil Mushran 2411ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2412539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 241301af4820SWengang Wang if (status < 0) { 241401af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 241501af4820SWengang Wang goto finally; 241601af4820SWengang Wang } 2417ccd979bdSMark Fasheh 24181dfeb768Salex chen if (osb->s_mount_opt & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 24191dfeb768Salex chen jbd2_journal_set_features(osb->journal->j_journal, 24201dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24211dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24221dfeb768Salex chen else 24231dfeb768Salex chen jbd2_journal_clear_features(osb->journal->j_journal, 24241dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24251dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24261dfeb768Salex chen 2427ccd979bdSMark Fasheh if (dirty) { 2428ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2429ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2430ccd979bdSMark Fasheh osb->slot_num, 2431ccd979bdSMark Fasheh &local_alloc); 2432ccd979bdSMark Fasheh if (status < 0) { 2433ccd979bdSMark Fasheh mlog_errno(status); 2434ccd979bdSMark Fasheh goto finally; 2435ccd979bdSMark Fasheh } 2436ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2437ccd979bdSMark Fasheh * ourselves as mounted. */ 2438ccd979bdSMark Fasheh } 2439ccd979bdSMark Fasheh 2440ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2441ccd979bdSMark Fasheh if (status < 0) { 2442ccd979bdSMark Fasheh mlog_errno(status); 2443ccd979bdSMark Fasheh goto finally; 2444ccd979bdSMark Fasheh } 2445ccd979bdSMark Fasheh 2446ccd979bdSMark Fasheh if (dirty) { 2447ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2448ccd979bdSMark Fasheh * rest of the volume. */ 2449ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2450ccd979bdSMark Fasheh local_alloc = NULL; 2451ccd979bdSMark Fasheh } 2452ccd979bdSMark Fasheh 2453ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2454ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2455ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2456ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 24579140db04SSrinivas Eeda if (status < 0) { 24589140db04SSrinivas Eeda mlog_errno(status); 24599140db04SSrinivas Eeda goto finally; 24609140db04SSrinivas Eeda } 24619140db04SSrinivas Eeda 24629140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2463ccd979bdSMark Fasheh if (status < 0) 2464ccd979bdSMark Fasheh mlog_errno(status); 2465ccd979bdSMark Fasheh 2466ccd979bdSMark Fasheh finally: 2467ccd979bdSMark Fasheh kfree(local_alloc); 2468ccd979bdSMark Fasheh 2469c1e8d35eSTao Ma if (status) 2470c1e8d35eSTao Ma mlog_errno(status); 2471ccd979bdSMark Fasheh return status; 2472ccd979bdSMark Fasheh } 2473ccd979bdSMark Fasheh 2474ccd979bdSMark Fasheh /* 2475ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2476ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2477ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2478ccd979bdSMark Fasheh * initialized resources and fileobject. 2479ccd979bdSMark Fasheh */ 2480ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2481ccd979bdSMark Fasheh { 2482ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2483ccd979bdSMark Fasheh 248435ddf78eSjiangyiwen /* ocfs2_initializer_super have already created this workqueue */ 248523e0813aSpiaojun if (osb->ocfs2_wq) 248635ddf78eSjiangyiwen destroy_workqueue(osb->ocfs2_wq); 248735ddf78eSjiangyiwen 24888e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2489ccd979bdSMark Fasheh 2490b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2491539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2492ccd979bdSMark Fasheh /* FIXME 2493ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2494421f91d2SUwe Kleine-König * allocate osb->journal at the start of ocfs2_initialize_osb(), 2495ccd979bdSMark Fasheh * we free it here. 2496ccd979bdSMark Fasheh */ 2497ccd979bdSMark Fasheh kfree(osb->journal); 2498ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2499ccd979bdSMark Fasheh kfree(osb->uuid_str); 2500f13a568eSJoseph Qi kfree(osb->vol_label); 2501ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2502ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2503ccd979bdSMark Fasheh } 2504ccd979bdSMark Fasheh 25057d0fb914SGoldwyn Rodrigues /* Depending on the mount option passed, perform one of the following: 25067d0fb914SGoldwyn Rodrigues * Put OCFS2 into a readonly state (default) 25077d0fb914SGoldwyn Rodrigues * Return EIO so that only the process errs 25087d0fb914SGoldwyn Rodrigues * Fix the error as if fsck.ocfs2 -y 25097d0fb914SGoldwyn Rodrigues * panic 25107d0fb914SGoldwyn Rodrigues */ 25117d0fb914SGoldwyn Rodrigues static int ocfs2_handle_error(struct super_block *sb) 2512ccd979bdSMark Fasheh { 2513ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 25147d0fb914SGoldwyn Rodrigues int rv = 0; 2515ccd979bdSMark Fasheh 2516ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 25177d0fb914SGoldwyn Rodrigues pr_crit("On-disk corruption discovered. " 25187d0fb914SGoldwyn Rodrigues "Please run fsck.ocfs2 once the filesystem is unmounted.\n"); 2519ccd979bdSMark Fasheh 25207d0fb914SGoldwyn Rodrigues if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) { 25217d0fb914SGoldwyn Rodrigues panic("OCFS2: (device %s): panic forced after error\n", 25227d0fb914SGoldwyn Rodrigues sb->s_id); 25237d0fb914SGoldwyn Rodrigues } else if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_CONT) { 25247d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: Returning error to the calling process.\n"); 25257d0fb914SGoldwyn Rodrigues rv = -EIO; 25267d0fb914SGoldwyn Rodrigues } else { /* default option */ 25277d0fb914SGoldwyn Rodrigues rv = -EROFS; 2528bc98a42cSDavid Howells if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb))) 25297d0fb914SGoldwyn Rodrigues return rv; 2530ccd979bdSMark Fasheh 25317d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: File system is now read-only.\n"); 25321751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 2533ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2534ccd979bdSMark Fasheh } 2535ccd979bdSMark Fasheh 25367d0fb914SGoldwyn Rodrigues return rv; 25377d0fb914SGoldwyn Rodrigues } 25387d0fb914SGoldwyn Rodrigues 25397d0fb914SGoldwyn Rodrigues int __ocfs2_error(struct super_block *sb, const char *function, 2540ccd979bdSMark Fasheh const char *fmt, ...) 2541ccd979bdSMark Fasheh { 25421543306eSJoe Perches struct va_format vaf; 2543ccd979bdSMark Fasheh va_list args; 2544ccd979bdSMark Fasheh 2545ccd979bdSMark Fasheh va_start(args, fmt); 25461543306eSJoe Perches vaf.fmt = fmt; 25471543306eSJoe Perches vaf.va = &args; 2548ccd979bdSMark Fasheh 2549ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2550ccd979bdSMark Fasheh * function the error came from. */ 25517ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %pV", 25521543306eSJoe Perches sb->s_id, function, &vaf); 25531543306eSJoe Perches 25541543306eSJoe Perches va_end(args); 2555ccd979bdSMark Fasheh 25567d0fb914SGoldwyn Rodrigues return ocfs2_handle_error(sb); 2557ccd979bdSMark Fasheh } 2558ccd979bdSMark Fasheh 2559ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2560ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2561ccd979bdSMark Fasheh * etc. */ 25621543306eSJoe Perches void __ocfs2_abort(struct super_block *sb, const char *function, 2563ccd979bdSMark Fasheh const char *fmt, ...) 2564ccd979bdSMark Fasheh { 25651543306eSJoe Perches struct va_format vaf; 2566ccd979bdSMark Fasheh va_list args; 2567ccd979bdSMark Fasheh 2568ccd979bdSMark Fasheh va_start(args, fmt); 2569ccd979bdSMark Fasheh 25701543306eSJoe Perches vaf.fmt = fmt; 25711543306eSJoe Perches vaf.va = &args; 25721543306eSJoe Perches 25737ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: abort (device %s): %s: %pV", 25741543306eSJoe Perches sb->s_id, function, &vaf); 25751543306eSJoe Perches 25761543306eSJoe Perches va_end(args); 2577ccd979bdSMark Fasheh 2578ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2579ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2580ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2581ccd979bdSMark Fasheh * errors. 2582ccd979bdSMark Fasheh * 2583ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2584ccd979bdSMark Fasheh * that our slot needs recovery. */ 2585ccd979bdSMark Fasheh 2586ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2587ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2588ccd979bdSMark Fasheh * here. */ 2589a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2590ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2591ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2592ccd979bdSMark Fasheh } 2593ccd979bdSMark Fasheh 2594e4b963f1SJoel Becker /* 2595e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2596e4b963f1SJoel Becker * when SIG_* is wrong. 2597e4b963f1SJoel Becker */ 2598e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2599e4b963f1SJoel Becker { 2600e4b963f1SJoel Becker int rc; 2601e4b963f1SJoel Becker sigset_t blocked; 2602e4b963f1SJoel Becker 2603e4b963f1SJoel Becker sigfillset(&blocked); 2604e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2605e4b963f1SJoel Becker BUG_ON(rc); 2606e4b963f1SJoel Becker } 2607e4b963f1SJoel Becker 2608e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2609e4b963f1SJoel Becker { 2610e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2611e4b963f1SJoel Becker BUG_ON(rc); 2612e4b963f1SJoel Becker } 2613e4b963f1SJoel Becker 2614ccd979bdSMark Fasheh module_init(ocfs2_init); 2615ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2616