1ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 2ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 3ccd979bdSMark Fasheh * 4ccd979bdSMark Fasheh * super.c 5ccd979bdSMark Fasheh * 6ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 7ccd979bdSMark Fasheh * 8ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 9ccd979bdSMark Fasheh * 10ccd979bdSMark Fasheh * This program is free software; you can redistribute it and/or 11ccd979bdSMark Fasheh * modify it under the terms of the GNU General Public 12ccd979bdSMark Fasheh * License as published by the Free Software Foundation; either 13ccd979bdSMark Fasheh * version 2 of the License, or (at your option) any later version. 14ccd979bdSMark Fasheh * 15ccd979bdSMark Fasheh * This program is distributed in the hope that it will be useful, 16ccd979bdSMark Fasheh * but WITHOUT ANY WARRANTY; without even the implied warranty of 17ccd979bdSMark Fasheh * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18ccd979bdSMark Fasheh * General Public License for more details. 19ccd979bdSMark Fasheh * 20ccd979bdSMark Fasheh * You should have received a copy of the GNU General Public 21ccd979bdSMark Fasheh * License along with this program; if not, write to the 22ccd979bdSMark Fasheh * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23ccd979bdSMark Fasheh * Boston, MA 021110-1307, USA. 24ccd979bdSMark Fasheh */ 25ccd979bdSMark Fasheh 26ccd979bdSMark Fasheh #include <linux/module.h> 27ccd979bdSMark Fasheh #include <linux/fs.h> 28ccd979bdSMark Fasheh #include <linux/types.h> 29ccd979bdSMark Fasheh #include <linux/slab.h> 30ccd979bdSMark Fasheh #include <linux/highmem.h> 31ccd979bdSMark Fasheh #include <linux/init.h> 32ccd979bdSMark Fasheh #include <linux/random.h> 33ccd979bdSMark Fasheh #include <linux/statfs.h> 34ccd979bdSMark Fasheh #include <linux/moduleparam.h> 35ccd979bdSMark Fasheh #include <linux/blkdev.h> 36ccd979bdSMark Fasheh #include <linux/socket.h> 37ccd979bdSMark Fasheh #include <linux/inet.h> 38ccd979bdSMark Fasheh #include <linux/parser.h> 39ccd979bdSMark Fasheh #include <linux/crc32.h> 40ccd979bdSMark Fasheh #include <linux/debugfs.h> 41d550071cSSunil Mushran #include <linux/mount.h> 426953b4c0SJoel Becker #include <linux/seq_file.h> 4319ece546SJan Kara #include <linux/quotaops.h> 44ccd979bdSMark Fasheh 4580a9a84dSWengang Wang #define CREATE_TRACE_POINTS 4680a9a84dSWengang Wang #include "ocfs2_trace.h" 4780a9a84dSWengang Wang 48ccd979bdSMark Fasheh #include <cluster/masklog.h> 49ccd979bdSMark Fasheh 50ccd979bdSMark Fasheh #include "ocfs2.h" 51ccd979bdSMark Fasheh 52ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 53ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 54ccd979bdSMark Fasheh 55ccd979bdSMark Fasheh #include "alloc.h" 56d030cc97SJoel Becker #include "blockcheck.h" 57ccd979bdSMark Fasheh #include "dlmglue.h" 58ccd979bdSMark Fasheh #include "export.h" 59ccd979bdSMark Fasheh #include "extent_map.h" 60ccd979bdSMark Fasheh #include "heartbeat.h" 61ccd979bdSMark Fasheh #include "inode.h" 62ccd979bdSMark Fasheh #include "journal.h" 63ccd979bdSMark Fasheh #include "localalloc.h" 64ccd979bdSMark Fasheh #include "namei.h" 65ccd979bdSMark Fasheh #include "slot_map.h" 66ccd979bdSMark Fasheh #include "super.h" 67ccd979bdSMark Fasheh #include "sysfile.h" 68ccd979bdSMark Fasheh #include "uptodate.h" 69ccd979bdSMark Fasheh #include "ver.h" 70cf1d6c76STiger Yang #include "xattr.h" 719e33d69fSJan Kara #include "quota.h" 72374a263eSTao Ma #include "refcounttree.h" 73b89c5428STiger Yang #include "suballoc.h" 74ccd979bdSMark Fasheh 75ccd979bdSMark Fasheh #include "buffer_head_io.h" 76ccd979bdSMark Fasheh 77e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 789e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 799e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 80ccd979bdSMark Fasheh 8125985edcSLucas De Marchi /* OCFS2 needs to schedule several different types of work which 82ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 83ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 84ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 85ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 86ccd979bdSMark Fasheh 87ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 88ccd979bdSMark Fasheh 89ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 90ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 91ccd979bdSMark Fasheh 92c0123adeSTiger Yang struct mount_options 93c0123adeSTiger Yang { 94d147b3d6SMark Fasheh unsigned long commit_interval; 95c0123adeSTiger Yang unsigned long mount_opt; 96c0123adeSTiger Yang unsigned int atime_quantum; 97c0123adeSTiger Yang signed short slot; 9873c8a800SMark Fasheh int localalloc_opt; 99d02f00ccSMark Fasheh unsigned int resv_level; 10083f92318SMark Fasheh int dir_resv_level; 101b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 102c0123adeSTiger Yang }; 103c0123adeSTiger Yang 104ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 105c0123adeSTiger Yang struct mount_options *mopt, 106baf4661aSSunil Mushran int is_remount); 1075297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 1085297aad8SJan Kara struct mount_options *options); 109d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 110ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 111ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 112ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 113ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 114ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 115ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 116ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 117ccd979bdSMark Fasheh 118726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 119ccd979bdSMark Fasheh 120ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 121ccd979bdSMark Fasheh 122ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 123ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 124bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 125ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 126ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 127ccd979bdSMark Fasheh struct buffer_head *bh, 12873be192bSJoel Becker u32 sectsize, 12973be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 130ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 131ccd979bdSMark Fasheh struct buffer_head *bh, 13273be192bSJoel Becker int sector_size, 13373be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 134ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 135ccd979bdSMark Fasheh struct buffer_head **bh, 136ccd979bdSMark Fasheh int block, 137ccd979bdSMark Fasheh int sect_size); 138ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 139ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 14019ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 14119ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 14219ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 143ccd979bdSMark Fasheh 144ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 145ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 146ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 147ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 148ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 149066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 150ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 151ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 152ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 153d550071cSSunil Mushran .show_options = ocfs2_show_options, 1549e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1559e33d69fSJan Kara .quota_write = ocfs2_quota_write, 156ccd979bdSMark Fasheh }; 157ccd979bdSMark Fasheh 158ccd979bdSMark Fasheh enum { 159ccd979bdSMark Fasheh Opt_barrier, 160ccd979bdSMark Fasheh Opt_err_panic, 161ccd979bdSMark Fasheh Opt_err_ro, 162ccd979bdSMark Fasheh Opt_intr, 163ccd979bdSMark Fasheh Opt_nointr, 164ccd979bdSMark Fasheh Opt_hb_none, 165ccd979bdSMark Fasheh Opt_hb_local, 1662c442719SSunil Mushran Opt_hb_global, 167ccd979bdSMark Fasheh Opt_data_ordered, 168ccd979bdSMark Fasheh Opt_data_writeback, 1697f1a37e3STiger Yang Opt_atime_quantum, 170baf4661aSSunil Mushran Opt_slot, 171d147b3d6SMark Fasheh Opt_commit, 1722fbe8d1eSSunil Mushran Opt_localalloc, 17353fc622bSMark Fasheh Opt_localflocks, 174b61817e1SJoel Becker Opt_stack, 175cf1d6c76STiger Yang Opt_user_xattr, 176cf1d6c76STiger Yang Opt_nouser_xattr, 17712462f1dSJoel Becker Opt_inode64, 178a68979b8STiger Yang Opt_acl, 179a68979b8STiger Yang Opt_noacl, 18019ece546SJan Kara Opt_usrquota, 18119ece546SJan Kara Opt_grpquota, 1827bdb0d18STristan Ye Opt_coherency_buffered, 1837bdb0d18STristan Ye Opt_coherency_full, 184d02f00ccSMark Fasheh Opt_resv_level, 18583f92318SMark Fasheh Opt_dir_resv_level, 186ccd979bdSMark Fasheh Opt_err, 187ccd979bdSMark Fasheh }; 188ccd979bdSMark Fasheh 189a447c093SSteven Whitehouse static const match_table_t tokens = { 190ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 191ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 192ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 193ccd979bdSMark Fasheh {Opt_intr, "intr"}, 194ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 195ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 196ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 1972c442719SSunil Mushran {Opt_hb_global, OCFS2_HB_GLOBAL}, 198ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 199ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 2007f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 201baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 202d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 2032fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 20453fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 205b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 206cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 207cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 20812462f1dSJoel Becker {Opt_inode64, "inode64"}, 209a68979b8STiger Yang {Opt_acl, "acl"}, 210a68979b8STiger Yang {Opt_noacl, "noacl"}, 21119ece546SJan Kara {Opt_usrquota, "usrquota"}, 21219ece546SJan Kara {Opt_grpquota, "grpquota"}, 2137bdb0d18STristan Ye {Opt_coherency_buffered, "coherency=buffered"}, 2147bdb0d18STristan Ye {Opt_coherency_full, "coherency=full"}, 215d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 21683f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 217ccd979bdSMark Fasheh {Opt_err, NULL} 218ccd979bdSMark Fasheh }; 219ccd979bdSMark Fasheh 22050397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 22150397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 22250397507SSunil Mushran { 22350397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 22450397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 225df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 226df152c24SSunil Mushran int i, out = 0; 22750397507SSunil Mushran 22850397507SSunil Mushran out += snprintf(buf + out, len - out, 22950397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 23050397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 23150397507SSunil Mushran osb->fs_generation, osb->vol_label); 23250397507SSunil Mushran 23350397507SSunil Mushran out += snprintf(buf + out, len - out, 23450397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 23550397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 23650397507SSunil Mushran 23750397507SSunil Mushran out += snprintf(buf + out, len - out, 23850397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 23950397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 24050397507SSunil Mushran 24150397507SSunil Mushran out += snprintf(buf + out, len - out, 24250397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 24350397507SSunil Mushran "ROcompat: 0x%X\n", 24450397507SSunil Mushran "Features", osb->s_feature_compat, 24550397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 24650397507SSunil Mushran 24750397507SSunil Mushran out += snprintf(buf + out, len - out, 24850397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 24950397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 25050397507SSunil Mushran 251c3d38840SSunil Mushran if (cconn) { 25250397507SSunil Mushran out += snprintf(buf + out, len - out, 253c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 254c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 25550397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 25650397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 25750397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 258c3d38840SSunil Mushran cconn->cc_version.pv_major, 259c3d38840SSunil Mushran cconn->cc_version.pv_minor); 260c3d38840SSunil Mushran } 26150397507SSunil Mushran 26250397507SSunil Mushran spin_lock(&osb->dc_task_lock); 26350397507SSunil Mushran out += snprintf(buf + out, len - out, 26450397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 26550397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 266c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 267c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 268c3d38840SSunil Mushran osb->dc_work_sequence); 26950397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 27050397507SSunil Mushran 27150397507SSunil Mushran spin_lock(&osb->osb_lock); 27250397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 27350397507SSunil Mushran "Recovery", 27450397507SSunil Mushran (osb->recovery_thread_task ? 27550397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 27650397507SSunil Mushran if (rm->rm_used == 0) 27750397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 27850397507SSunil Mushran else { 27950397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 28050397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 28150397507SSunil Mushran rm->rm_entries[i]); 28250397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 28350397507SSunil Mushran } 28450397507SSunil Mushran spin_unlock(&osb->osb_lock); 28550397507SSunil Mushran 28650397507SSunil Mushran out += snprintf(buf + out, len - out, 28750397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 288c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 289c3d38840SSunil Mushran osb->osb_commit_interval, 29050397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 29150397507SSunil Mushran 29250397507SSunil Mushran out += snprintf(buf + out, len - out, 293c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 29450397507SSunil Mushran "Journal", osb->journal->j_state, 295c3d38840SSunil Mushran osb->journal->j_trans_id, 296c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 29750397507SSunil Mushran 29850397507SSunil Mushran out += snprintf(buf + out, len - out, 29950397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 30050397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 30150397507SSunil Mushran "Stats", 30250397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 30350397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 30450397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 30550397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 30650397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 30750397507SSunil Mushran 30850397507SSunil Mushran out += snprintf(buf + out, len - out, 30950397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 31050397507SSunil Mushran "Default: %u bits\n", 31150397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 31250397507SSunil Mushran (unsigned long long)osb->la_last_gd, 31350397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 31450397507SSunil Mushran 31550397507SSunil Mushran spin_lock(&osb->osb_lock); 31650397507SSunil Mushran out += snprintf(buf + out, len - out, 317b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 318b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 31950397507SSunil Mushran osb->s_inode_steal_slot, 320b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 321b89c5428STiger Yang osb->s_meta_steal_slot, 322b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 32350397507SSunil Mushran spin_unlock(&osb->osb_lock); 32450397507SSunil Mushran 325df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 326df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 327df152c24SSunil Mushran os->os_count, os->os_seqno); 328df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 329df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 330df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 331df152c24SSunil Mushran else 332df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 333df152c24SSunil Mushran (get_seconds() - os->os_scantime.tv_sec)); 334df152c24SSunil Mushran 33550397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 33650397507SSunil Mushran "Slots", "Num", "RecoGen"); 33750397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 33850397507SSunil Mushran out += snprintf(buf + out, len - out, 33950397507SSunil Mushran "%10s %c %3d %10d\n", 34050397507SSunil Mushran " ", 34150397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 34250397507SSunil Mushran i, osb->slot_recovery_generations[i]); 34350397507SSunil Mushran } 34450397507SSunil Mushran 34550397507SSunil Mushran return out; 34650397507SSunil Mushran } 34750397507SSunil Mushran 34850397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 34950397507SSunil Mushran { 35050397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 35150397507SSunil Mushran char *buf = NULL; 35250397507SSunil Mushran 35350397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 35450397507SSunil Mushran if (!buf) 35550397507SSunil Mushran goto bail; 35650397507SSunil Mushran 35750397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 35850397507SSunil Mushran 35950397507SSunil Mushran file->private_data = buf; 36050397507SSunil Mushran 36150397507SSunil Mushran return 0; 36250397507SSunil Mushran bail: 36350397507SSunil Mushran return -ENOMEM; 36450397507SSunil Mushran } 36550397507SSunil Mushran 36650397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36750397507SSunil Mushran { 36850397507SSunil Mushran kfree(file->private_data); 36950397507SSunil Mushran return 0; 37050397507SSunil Mushran } 37150397507SSunil Mushran 37250397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 37350397507SSunil Mushran size_t nbytes, loff_t *ppos) 37450397507SSunil Mushran { 37550397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 37650397507SSunil Mushran i_size_read(file->f_mapping->host)); 37750397507SSunil Mushran } 37850397507SSunil Mushran #else 37950397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 38050397507SSunil Mushran { 38150397507SSunil Mushran return 0; 38250397507SSunil Mushran } 38350397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 38450397507SSunil Mushran { 38550397507SSunil Mushran return 0; 38650397507SSunil Mushran } 38750397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 38850397507SSunil Mushran size_t nbytes, loff_t *ppos) 38950397507SSunil Mushran { 39050397507SSunil Mushran return 0; 39150397507SSunil Mushran } 39250397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 39350397507SSunil Mushran 394828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 39550397507SSunil Mushran .open = ocfs2_osb_debug_open, 39650397507SSunil Mushran .release = ocfs2_debug_release, 39750397507SSunil Mushran .read = ocfs2_debug_read, 39850397507SSunil Mushran .llseek = generic_file_llseek, 39950397507SSunil Mushran }; 40050397507SSunil Mushran 401ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 402ccd979bdSMark Fasheh { 403bddb8eb3SDenis Cheng int status; 404ccd979bdSMark Fasheh tid_t target; 405ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 406ccd979bdSMark Fasheh 407ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 408ccd979bdSMark Fasheh return -EROFS; 409ccd979bdSMark Fasheh 410ccd979bdSMark Fasheh if (wait) { 411ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 412ccd979bdSMark Fasheh if (status < 0) 413ccd979bdSMark Fasheh mlog_errno(status); 414ccd979bdSMark Fasheh } else { 415ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 416ccd979bdSMark Fasheh } 417ccd979bdSMark Fasheh 4182b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 4192b4e30fbSJoel Becker &target)) { 420ccd979bdSMark Fasheh if (wait) 4212b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 422ccd979bdSMark Fasheh target); 423ccd979bdSMark Fasheh } 424ccd979bdSMark Fasheh return 0; 425ccd979bdSMark Fasheh } 426ccd979bdSMark Fasheh 4271a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4281a224ad1SJan Kara { 4291a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4301a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4311a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4321a224ad1SJan Kara return 0; 4331a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4341a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4351a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4361a224ad1SJan Kara return 0; 4371a224ad1SJan Kara return 1; 4381a224ad1SJan Kara } 4391a224ad1SJan Kara 440ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 441ccd979bdSMark Fasheh { 442ccd979bdSMark Fasheh struct inode *new = NULL; 443ccd979bdSMark Fasheh int status = 0; 444ccd979bdSMark Fasheh int i; 445ccd979bdSMark Fasheh 4465fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 447ccd979bdSMark Fasheh if (IS_ERR(new)) { 448ccd979bdSMark Fasheh status = PTR_ERR(new); 449ccd979bdSMark Fasheh mlog_errno(status); 450ccd979bdSMark Fasheh goto bail; 451ccd979bdSMark Fasheh } 452ccd979bdSMark Fasheh osb->root_inode = new; 453ccd979bdSMark Fasheh 4545fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 455ccd979bdSMark Fasheh if (IS_ERR(new)) { 456ccd979bdSMark Fasheh status = PTR_ERR(new); 457ccd979bdSMark Fasheh mlog_errno(status); 458ccd979bdSMark Fasheh goto bail; 459ccd979bdSMark Fasheh } 460ccd979bdSMark Fasheh osb->sys_root_inode = new; 461ccd979bdSMark Fasheh 462ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 463ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4641a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4651a224ad1SJan Kara continue; 466ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 467ccd979bdSMark Fasheh if (!new) { 468ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 469ccd979bdSMark Fasheh status = -EINVAL; 470ccd979bdSMark Fasheh mlog_errno(status); 471ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 472ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 473ccd979bdSMark Fasheh "possibly corrupt fs?", i); 474ccd979bdSMark Fasheh goto bail; 475ccd979bdSMark Fasheh } 476ccd979bdSMark Fasheh // the array now has one ref, so drop this one 477ccd979bdSMark Fasheh iput(new); 478ccd979bdSMark Fasheh } 479ccd979bdSMark Fasheh 480ccd979bdSMark Fasheh bail: 481c1e8d35eSTao Ma if (status) 482c1e8d35eSTao Ma mlog_errno(status); 483ccd979bdSMark Fasheh return status; 484ccd979bdSMark Fasheh } 485ccd979bdSMark Fasheh 486ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 487ccd979bdSMark Fasheh { 488ccd979bdSMark Fasheh struct inode *new = NULL; 489ccd979bdSMark Fasheh int status = 0; 490ccd979bdSMark Fasheh int i; 491ccd979bdSMark Fasheh 492ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 493ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 494ccd979bdSMark Fasheh i++) { 4951a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4961a224ad1SJan Kara continue; 497ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 498ccd979bdSMark Fasheh if (!new) { 499ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 500ccd979bdSMark Fasheh status = -EINVAL; 501ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 502ccd979bdSMark Fasheh status, i, osb->slot_num); 503ccd979bdSMark Fasheh goto bail; 504ccd979bdSMark Fasheh } 505ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 506ccd979bdSMark Fasheh iput(new); 507ccd979bdSMark Fasheh } 508ccd979bdSMark Fasheh 509ccd979bdSMark Fasheh bail: 510c1e8d35eSTao Ma if (status) 511c1e8d35eSTao Ma mlog_errno(status); 512ccd979bdSMark Fasheh return status; 513ccd979bdSMark Fasheh } 514ccd979bdSMark Fasheh 515bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 516ccd979bdSMark Fasheh { 517bddb8eb3SDenis Cheng int i; 518ccd979bdSMark Fasheh struct inode *inode; 519ccd979bdSMark Fasheh 520b4d693fcSTao Ma for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { 521b4d693fcSTao Ma inode = osb->global_system_inodes[i]; 522ccd979bdSMark Fasheh if (inode) { 523ccd979bdSMark Fasheh iput(inode); 524b4d693fcSTao Ma osb->global_system_inodes[i] = NULL; 525ccd979bdSMark Fasheh } 526ccd979bdSMark Fasheh } 527ccd979bdSMark Fasheh 528ccd979bdSMark Fasheh inode = osb->sys_root_inode; 529ccd979bdSMark Fasheh if (inode) { 530ccd979bdSMark Fasheh iput(inode); 531ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 532ccd979bdSMark Fasheh } 533ccd979bdSMark Fasheh 534ccd979bdSMark Fasheh inode = osb->root_inode; 535ccd979bdSMark Fasheh if (inode) { 536ccd979bdSMark Fasheh iput(inode); 537ccd979bdSMark Fasheh osb->root_inode = NULL; 538ccd979bdSMark Fasheh } 539ccd979bdSMark Fasheh 540b4d693fcSTao Ma if (!osb->local_system_inodes) 541c1e8d35eSTao Ma return; 542b4d693fcSTao Ma 543b4d693fcSTao Ma for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { 544b4d693fcSTao Ma if (osb->local_system_inodes[i]) { 545b4d693fcSTao Ma iput(osb->local_system_inodes[i]); 546b4d693fcSTao Ma osb->local_system_inodes[i] = NULL; 547b4d693fcSTao Ma } 548b4d693fcSTao Ma } 549b4d693fcSTao Ma 550b4d693fcSTao Ma kfree(osb->local_system_inodes); 551b4d693fcSTao Ma osb->local_system_inodes = NULL; 552ccd979bdSMark Fasheh } 553ccd979bdSMark Fasheh 554ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 555ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 556ccd979bdSMark Fasheh { 557ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 558ccd979bdSMark Fasheh 559e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 560ccd979bdSMark Fasheh if (!oi) 561ccd979bdSMark Fasheh return NULL; 562ccd979bdSMark Fasheh 5632b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 564ccd979bdSMark Fasheh return &oi->vfs_inode; 565ccd979bdSMark Fasheh } 566ccd979bdSMark Fasheh 567fa0d7e3dSNick Piggin static void ocfs2_i_callback(struct rcu_head *head) 568fa0d7e3dSNick Piggin { 569fa0d7e3dSNick Piggin struct inode *inode = container_of(head, struct inode, i_rcu); 570fa0d7e3dSNick Piggin INIT_LIST_HEAD(&inode->i_dentry); 571fa0d7e3dSNick Piggin kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 572fa0d7e3dSNick Piggin } 573fa0d7e3dSNick Piggin 574ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 575ccd979bdSMark Fasheh { 576fa0d7e3dSNick Piggin call_rcu(&inode->i_rcu, ocfs2_i_callback); 577ccd979bdSMark Fasheh } 578ccd979bdSMark Fasheh 5795a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5805a254031SMark Fasheh unsigned int cbits) 581ccd979bdSMark Fasheh { 5825a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5835a254031SMark Fasheh unsigned int trim = bytes; 5845a254031SMark Fasheh unsigned int bitshift = 32; 585ccd979bdSMark Fasheh 5865a254031SMark Fasheh /* 5875a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5885a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5895a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 590ccd979bdSMark Fasheh */ 591ccd979bdSMark Fasheh 592ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 59390c699a9SBartlomiej Zolnierkiewicz # if defined(CONFIG_LBDAF) 5942ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5955a254031SMark Fasheh /* 5965a254031SMark Fasheh * We might be limited by page cache size. 5975a254031SMark Fasheh */ 5985a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 5995a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 6005a254031SMark Fasheh trim = 1; 6015a254031SMark Fasheh /* 6025a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 6035a254031SMark Fasheh * MAX_LFS_FILESIZE 6045a254031SMark Fasheh */ 6055a254031SMark Fasheh bitshift = 31; 6065a254031SMark Fasheh } 607ccd979bdSMark Fasheh # else 6085a254031SMark Fasheh /* 6095a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 6105a254031SMark Fasheh * that's what we expose to the VFS. 6115a254031SMark Fasheh */ 6125a254031SMark Fasheh bytes = 1 << bbits; 6135a254031SMark Fasheh trim = 1; 6145a254031SMark Fasheh bitshift = 31; 615ccd979bdSMark Fasheh # endif 616ccd979bdSMark Fasheh #endif 617ccd979bdSMark Fasheh 6185a254031SMark Fasheh /* 6195a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 6205a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 6215a254031SMark Fasheh * an extent start is at the max offset. 6225a254031SMark Fasheh */ 6235a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 624ccd979bdSMark Fasheh } 625ccd979bdSMark Fasheh 626ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 627ccd979bdSMark Fasheh { 628ccd979bdSMark Fasheh int incompat_features; 629ccd979bdSMark Fasheh int ret = 0; 630c0123adeSTiger Yang struct mount_options parsed_options; 631ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 6322c442719SSunil Mushran u32 tmp; 633ccd979bdSMark Fasheh 6345297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6355297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 636ccd979bdSMark Fasheh ret = -EINVAL; 637ccd979bdSMark Fasheh goto out; 638ccd979bdSMark Fasheh } 639ccd979bdSMark Fasheh 6402c442719SSunil Mushran tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | 6412c442719SSunil Mushran OCFS2_MOUNT_HB_NONE; 6422c442719SSunil Mushran if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 643ccd979bdSMark Fasheh ret = -EINVAL; 644ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 645ccd979bdSMark Fasheh goto out; 646ccd979bdSMark Fasheh } 647ccd979bdSMark Fasheh 648ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 649c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 650ccd979bdSMark Fasheh ret = -EINVAL; 651ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 652ccd979bdSMark Fasheh goto out; 653ccd979bdSMark Fasheh } 654ccd979bdSMark Fasheh 65512462f1dSJoel Becker /* Probably don't want this on remount; it might 65612462f1dSJoel Becker * mess with other nodes */ 65712462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 65812462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 65912462f1dSJoel Becker ret = -EINVAL; 66012462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 66112462f1dSJoel Becker goto out; 66212462f1dSJoel Becker } 66312462f1dSJoel Becker 664ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 665ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 66619ece546SJan Kara /* Disable quota accounting before remounting RO */ 66719ece546SJan Kara if (*flags & MS_RDONLY) { 66819ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 66919ece546SJan Kara if (ret < 0) 67019ece546SJan Kara goto out; 67119ece546SJan Kara } 672ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 673ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 674ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 675ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 676ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 677ccd979bdSMark Fasheh ret = -EROFS; 678ccd979bdSMark Fasheh goto unlock_osb; 679ccd979bdSMark Fasheh } 680ccd979bdSMark Fasheh 681ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 682ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 683ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 684ccd979bdSMark Fasheh } else { 685ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 686ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 687ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 688ccd979bdSMark Fasheh ret = -EROFS; 689ccd979bdSMark Fasheh goto unlock_osb; 690ccd979bdSMark Fasheh } 691ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 692ccd979bdSMark Fasheh if (incompat_features) { 693ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 694ccd979bdSMark Fasheh "of unsupported optional features " 695ccd979bdSMark Fasheh "(%x).\n", incompat_features); 696ccd979bdSMark Fasheh ret = -EINVAL; 697ccd979bdSMark Fasheh goto unlock_osb; 698ccd979bdSMark Fasheh } 699ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 700ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 701ccd979bdSMark Fasheh } 70232a42d39STao Ma trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); 703ccd979bdSMark Fasheh unlock_osb: 704ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 70519ece546SJan Kara /* Enable quota accounting after remounting RW */ 70619ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 70719ece546SJan Kara if (sb_any_quota_suspended(sb)) 70819ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 70919ece546SJan Kara else 71019ece546SJan Kara ret = ocfs2_enable_quotas(osb); 71119ece546SJan Kara if (ret < 0) { 71219ece546SJan Kara /* Return back changes... */ 71319ece546SJan Kara spin_lock(&osb->osb_lock); 71419ece546SJan Kara sb->s_flags |= MS_RDONLY; 71519ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 71619ece546SJan Kara spin_unlock(&osb->osb_lock); 71719ece546SJan Kara goto out; 71819ece546SJan Kara } 71919ece546SJan Kara } 720ccd979bdSMark Fasheh } 721ccd979bdSMark Fasheh 722ccd979bdSMark Fasheh if (!ret) { 723ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 724ccd979bdSMark Fasheh * remount. */ 725c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 726c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 727c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 728d147b3d6SMark Fasheh if (parsed_options.commit_interval) 729d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 730e001e796SMark Fasheh 731e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 732e001e796SMark Fasheh ocfs2_set_journal_params(osb); 73357b09bb5SJan Kara 73457b09bb5SJan Kara sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 73557b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 73657b09bb5SJan Kara MS_POSIXACL : 0); 737ccd979bdSMark Fasheh } 738ccd979bdSMark Fasheh out: 739ccd979bdSMark Fasheh return ret; 740ccd979bdSMark Fasheh } 741ccd979bdSMark Fasheh 742ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 743ccd979bdSMark Fasheh struct buffer_head **bh, 74473be192bSJoel Becker int *sector_size, 74573be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 746ccd979bdSMark Fasheh { 747bddb8eb3SDenis Cheng int status, tmpstat; 748ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 749ccd979bdSMark Fasheh struct ocfs2_dinode *di; 750ccd979bdSMark Fasheh int blksize; 751ccd979bdSMark Fasheh 752ccd979bdSMark Fasheh *bh = NULL; 753ccd979bdSMark Fasheh 754ccd979bdSMark Fasheh /* may be > 512 */ 755e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 756ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 757ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 758ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 759ccd979bdSMark Fasheh status = -EINVAL; 760ccd979bdSMark Fasheh goto bail; 761ccd979bdSMark Fasheh } 762ccd979bdSMark Fasheh 763ccd979bdSMark Fasheh /* Can this really happen? */ 764ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 765ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 766ccd979bdSMark Fasheh 767ccd979bdSMark Fasheh /* check block zero for old format */ 768ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 769ccd979bdSMark Fasheh if (status < 0) { 770ccd979bdSMark Fasheh mlog_errno(status); 771ccd979bdSMark Fasheh goto bail; 772ccd979bdSMark Fasheh } 773ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 774ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 775ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 776ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 777ccd979bdSMark Fasheh status = -EINVAL; 778ccd979bdSMark Fasheh } 779ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 780ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 781ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 782ccd979bdSMark Fasheh hdr->signature); 783ccd979bdSMark Fasheh status = -EINVAL; 784ccd979bdSMark Fasheh } 785ccd979bdSMark Fasheh brelse(*bh); 786ccd979bdSMark Fasheh *bh = NULL; 787ccd979bdSMark Fasheh if (status < 0) { 788ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 789ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 790ccd979bdSMark Fasheh goto bail; 791ccd979bdSMark Fasheh } 792ccd979bdSMark Fasheh 793ccd979bdSMark Fasheh /* 794ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 795ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 796ccd979bdSMark Fasheh * the minimum clustersize. 797ccd979bdSMark Fasheh */ 798ccd979bdSMark Fasheh status = -EINVAL; 799ccd979bdSMark Fasheh for (blksize = *sector_size; 800ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 801ccd979bdSMark Fasheh blksize <<= 1) { 802ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 803ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 804ccd979bdSMark Fasheh blksize); 805ccd979bdSMark Fasheh if (tmpstat < 0) { 806ccd979bdSMark Fasheh status = tmpstat; 807ccd979bdSMark Fasheh mlog_errno(status); 808fb5cbe9eSJoel Becker break; 809ccd979bdSMark Fasheh } 810ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 81173be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 8121c1d9793SJan Kara spin_lock_init(&stats->b_lock); 813fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 814fb5cbe9eSJoel Becker if (tmpstat < 0) { 815ccd979bdSMark Fasheh brelse(*bh); 816ccd979bdSMark Fasheh *bh = NULL; 817fb5cbe9eSJoel Becker } 818fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 819fb5cbe9eSJoel Becker status = tmpstat; 820ccd979bdSMark Fasheh break; 821ccd979bdSMark Fasheh } 822fb5cbe9eSJoel Becker } 823ccd979bdSMark Fasheh 824ccd979bdSMark Fasheh bail: 825ccd979bdSMark Fasheh return status; 826ccd979bdSMark Fasheh } 827ccd979bdSMark Fasheh 828c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 829c271c5c2SSunil Mushran { 8302c442719SSunil Mushran u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; 8312c442719SSunil Mushran 8322c442719SSunil Mushran if (osb->s_mount_opt & hb_enabled) { 833c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 834c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 835c271c5c2SSunil Mushran "mounted device.\n"); 836c271c5c2SSunil Mushran return -EINVAL; 837c271c5c2SSunil Mushran } 838b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 839b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 840b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 841b61817e1SJoel Becker return -EINVAL; 842b61817e1SJoel Becker } 8432c442719SSunil Mushran if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && 8442c442719SSunil Mushran !ocfs2_cluster_o2cb_global_heartbeat(osb)) || 8452c442719SSunil Mushran ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && 8462c442719SSunil Mushran ocfs2_cluster_o2cb_global_heartbeat(osb))) { 8472c442719SSunil Mushran mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); 8482c442719SSunil Mushran return -EINVAL; 8492c442719SSunil Mushran } 850b61817e1SJoel Becker } 851b61817e1SJoel Becker 8522c442719SSunil Mushran if (!(osb->s_mount_opt & hb_enabled)) { 853b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 854b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 855c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 856c271c5c2SSunil Mushran "a read-write clustered device.\n"); 857c271c5c2SSunil Mushran return -EINVAL; 858c271c5c2SSunil Mushran } 859c271c5c2SSunil Mushran } 860c271c5c2SSunil Mushran 861c271c5c2SSunil Mushran return 0; 862c271c5c2SSunil Mushran } 863c271c5c2SSunil Mushran 864b61817e1SJoel Becker /* 865b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 866b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 867b61817e1SJoel Becker * have passed a stack. 868b61817e1SJoel Becker */ 869b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 870b61817e1SJoel Becker struct mount_options *mopt) 871b61817e1SJoel Becker { 872b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 873b61817e1SJoel Becker mlog(ML_ERROR, 874b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 875b61817e1SJoel Becker "does not support it\n"); 876b61817e1SJoel Becker return -EINVAL; 877b61817e1SJoel Becker } 878b61817e1SJoel Becker 879b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 880b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 881b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 882b61817e1SJoel Becker mlog(ML_ERROR, 883b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 884b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 885b61817e1SJoel Becker mopt->cluster_stack, 886b61817e1SJoel Becker osb->osb_cluster_stack); 887b61817e1SJoel Becker return -EINVAL; 888b61817e1SJoel Becker } 889b61817e1SJoel Becker 890b61817e1SJoel Becker return 0; 891b61817e1SJoel Becker } 892b61817e1SJoel Becker 89319ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 89419ece546SJan Kara { 89519ece546SJan Kara int type; 89619ece546SJan Kara struct super_block *sb = osb->sb; 89719ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 89819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 89919ece546SJan Kara int status = 0; 90019ece546SJan Kara 90119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 90219ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 90319ece546SJan Kara continue; 90419ece546SJan Kara if (unsuspend) 9050f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 906eea7feb0SJan Kara else { 907eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 908eea7feb0SJan Kara 909eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 910eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 911eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 9120f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 913eea7feb0SJan Kara } 91419ece546SJan Kara if (status < 0) 91519ece546SJan Kara break; 91619ece546SJan Kara } 91719ece546SJan Kara if (status < 0) 91819ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 91919ece546SJan Kara "remount (error = %d).\n", status); 92019ece546SJan Kara return status; 92119ece546SJan Kara } 92219ece546SJan Kara 92319ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 92419ece546SJan Kara { 92519ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 92619ece546SJan Kara struct super_block *sb = osb->sb; 92719ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 92819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 92919ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 93019ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 93119ece546SJan Kara int status; 93219ece546SJan Kara int type; 93319ece546SJan Kara 93419ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 93519ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 93619ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 93719ece546SJan Kara continue; 93819ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 93919ece546SJan Kara osb->slot_num); 94019ece546SJan Kara if (!inode[type]) { 94119ece546SJan Kara status = -ENOENT; 94219ece546SJan Kara goto out_quota_off; 94319ece546SJan Kara } 944287a8095SChristoph Hellwig status = dquot_enable(inode[type], type, QFMT_OCFS2, 94519ece546SJan Kara DQUOT_USAGE_ENABLED); 94619ece546SJan Kara if (status < 0) 94719ece546SJan Kara goto out_quota_off; 94819ece546SJan Kara } 94919ece546SJan Kara 95019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 95119ece546SJan Kara iput(inode[type]); 95219ece546SJan Kara return 0; 95319ece546SJan Kara out_quota_off: 95419ece546SJan Kara ocfs2_disable_quotas(osb); 95519ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 95619ece546SJan Kara iput(inode[type]); 95719ece546SJan Kara mlog_errno(status); 95819ece546SJan Kara return status; 95919ece546SJan Kara } 96019ece546SJan Kara 96119ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 96219ece546SJan Kara { 96319ece546SJan Kara int type; 96419ece546SJan Kara struct inode *inode; 96519ece546SJan Kara struct super_block *sb = osb->sb; 966c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 96719ece546SJan Kara 96819ece546SJan Kara /* We mostly ignore errors in this function because there's not much 96919ece546SJan Kara * we can do when we see them */ 97019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 97119ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 97219ece546SJan Kara continue; 973c06bcbfaSJan Kara /* Cancel periodic syncing before we grab dqonoff_mutex */ 974c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 975c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 97619ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 97719ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 97819ece546SJan Kara * memory and so they will be automatically synced to global 97919ece546SJan Kara * quota files */ 9800f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 98119ece546SJan Kara DQUOT_LIMITS_ENABLED); 98219ece546SJan Kara if (!inode) 98319ece546SJan Kara continue; 98419ece546SJan Kara iput(inode); 98519ece546SJan Kara } 98619ece546SJan Kara } 98719ece546SJan Kara 98819ece546SJan Kara /* Handle quota on quotactl */ 989f00c9e44SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id) 99019ece546SJan Kara { 99119ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 99219ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 99319ece546SJan Kara 99419ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 99519ece546SJan Kara return -EINVAL; 99619ece546SJan Kara 997287a8095SChristoph Hellwig return dquot_enable(sb_dqopt(sb)->files[type], type, 99819ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 99919ece546SJan Kara } 100019ece546SJan Kara 100119ece546SJan Kara /* Handle quota off quotactl */ 1002307ae18aSChristoph Hellwig static int ocfs2_quota_off(struct super_block *sb, int type) 100319ece546SJan Kara { 10040f0dd62fSChristoph Hellwig return dquot_disable(sb, type, DQUOT_LIMITS_ENABLED); 100519ece546SJan Kara } 100619ece546SJan Kara 10070d54b217SAlexey Dobriyan static const struct quotactl_ops ocfs2_quotactl_ops = { 1008f00c9e44SJan Kara .quota_on_meta = ocfs2_quota_on, 100919ece546SJan Kara .quota_off = ocfs2_quota_off, 1010287a8095SChristoph Hellwig .quota_sync = dquot_quota_sync, 1011287a8095SChristoph Hellwig .get_info = dquot_get_dqinfo, 1012287a8095SChristoph Hellwig .set_info = dquot_set_dqinfo, 1013287a8095SChristoph Hellwig .get_dqblk = dquot_get_dqblk, 1014287a8095SChristoph Hellwig .set_dqblk = dquot_set_dqblk, 101519ece546SJan Kara }; 101619ece546SJan Kara 1017ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 1018ccd979bdSMark Fasheh { 1019ccd979bdSMark Fasheh struct dentry *root; 1020ccd979bdSMark Fasheh int status, sector_size; 1021c0123adeSTiger Yang struct mount_options parsed_options; 1022ccd979bdSMark Fasheh struct inode *inode = NULL; 1023ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1024ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1025c271c5c2SSunil Mushran char nodestr[8]; 102673be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 1027ccd979bdSMark Fasheh 102832a42d39STao Ma trace_ocfs2_fill_super(sb, data, silent); 1029ccd979bdSMark Fasheh 1030c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 1031c271c5c2SSunil Mushran status = -EINVAL; 1032c271c5c2SSunil Mushran goto read_super_error; 1033c271c5c2SSunil Mushran } 1034c271c5c2SSunil Mushran 1035ccd979bdSMark Fasheh /* probe for superblock */ 103673be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1037ccd979bdSMark Fasheh if (status < 0) { 1038ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1039ccd979bdSMark Fasheh goto read_super_error; 1040ccd979bdSMark Fasheh } 1041ccd979bdSMark Fasheh 104273be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1043ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1044ccd979bdSMark Fasheh if (status < 0) { 1045ccd979bdSMark Fasheh mlog_errno(status); 1046ccd979bdSMark Fasheh goto read_super_error; 1047ccd979bdSMark Fasheh } 1048ccd979bdSMark Fasheh brelse(bh); 1049ccd979bdSMark Fasheh bh = NULL; 1050a68979b8STiger Yang 10515297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10525297aad8SJan Kara status = -EINVAL; 10535297aad8SJan Kara goto read_super_error; 10545297aad8SJan Kara } 1055c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1056c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1057c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1058d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 105973c8a800SMark Fasheh 106073c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1061d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 106283f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 106383f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 106483f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 106583f92318SMark Fasheh else 106683f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1067ccd979bdSMark Fasheh 1068b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1069b61817e1SJoel Becker if (status) 1070b61817e1SJoel Becker goto read_super_error; 1071b61817e1SJoel Becker 1072ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1073ccd979bdSMark Fasheh 1074a68979b8STiger Yang sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 1075a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1076a68979b8STiger Yang 1077ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1078ccd979bdSMark Fasheh * heartbeat=none */ 1079ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1080ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1081ccd979bdSMark Fasheh status = -EACCES; 1082ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1083ccd979bdSMark Fasheh "mount was not specified.\n"); 1084ccd979bdSMark Fasheh goto read_super_error; 1085ccd979bdSMark Fasheh } 1086ccd979bdSMark Fasheh 1087ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1088ccd979bdSMark Fasheh * on a readonly device. */ 1089ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1090ccd979bdSMark Fasheh status = -EROFS; 1091ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1092ccd979bdSMark Fasheh "device.\n"); 1093ccd979bdSMark Fasheh goto read_super_error; 1094ccd979bdSMark Fasheh } 1095ccd979bdSMark Fasheh 1096ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1097ccd979bdSMark Fasheh if (status < 0) { 1098ccd979bdSMark Fasheh if (status == -EROFS) 1099ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1100ccd979bdSMark Fasheh "file system, but write access is " 1101ccd979bdSMark Fasheh "unavailable.\n"); 1102ccd979bdSMark Fasheh else 1103ccd979bdSMark Fasheh mlog_errno(status); 1104ccd979bdSMark Fasheh goto read_super_error; 1105ccd979bdSMark Fasheh } 1106ccd979bdSMark Fasheh 1107ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1108ccd979bdSMark Fasheh 1109ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 1110ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 1111ccd979bdSMark Fasheh "will be skipped.\n"); 1112ccd979bdSMark Fasheh } 1113ccd979bdSMark Fasheh 1114ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1115ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1116ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1117ccd979bdSMark Fasheh } 1118ccd979bdSMark Fasheh 1119c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1120c271c5c2SSunil Mushran if (status < 0) { 1121c271c5c2SSunil Mushran mlog_errno(status); 1122c271c5c2SSunil Mushran goto read_super_error; 1123c271c5c2SSunil Mushran } 1124c271c5c2SSunil Mushran 1125ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1126ccd979bdSMark Fasheh ocfs2_debugfs_root); 1127ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1128ccd979bdSMark Fasheh status = -EINVAL; 1129ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1130ccd979bdSMark Fasheh goto read_super_error; 1131ccd979bdSMark Fasheh } 1132ccd979bdSMark Fasheh 113350397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 113450397507SSunil Mushran osb->osb_debug_root, 113550397507SSunil Mushran osb, 113650397507SSunil Mushran &ocfs2_osb_debug_fops); 113750397507SSunil Mushran if (!osb->osb_ctxt) { 113850397507SSunil Mushran status = -EINVAL; 113950397507SSunil Mushran mlog_errno(status); 114050397507SSunil Mushran goto read_super_error; 114150397507SSunil Mushran } 114250397507SSunil Mushran 114373be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 114473be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 114573be192bSJoel Becker &osb->osb_ecc_stats, 114673be192bSJoel Becker osb->osb_debug_root); 114773be192bSJoel Becker if (status) { 114873be192bSJoel Becker mlog(ML_ERROR, 114973be192bSJoel Becker "Unable to create blockcheck statistics " 115073be192bSJoel Becker "files\n"); 115173be192bSJoel Becker goto read_super_error; 115273be192bSJoel Becker } 115373be192bSJoel Becker } 115473be192bSJoel Becker 1155ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1156ccd979bdSMark Fasheh if (osb->root_inode) 1157ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 1158ccd979bdSMark Fasheh 1159ccd979bdSMark Fasheh if (status < 0) 1160ccd979bdSMark Fasheh goto read_super_error; 1161ccd979bdSMark Fasheh 1162ccd979bdSMark Fasheh if (!inode) { 1163ccd979bdSMark Fasheh status = -EIO; 1164ccd979bdSMark Fasheh mlog_errno(status); 1165ccd979bdSMark Fasheh goto read_super_error; 1166ccd979bdSMark Fasheh } 1167ccd979bdSMark Fasheh 1168ccd979bdSMark Fasheh root = d_alloc_root(inode); 1169ccd979bdSMark Fasheh if (!root) { 1170ccd979bdSMark Fasheh status = -ENOMEM; 1171ccd979bdSMark Fasheh mlog_errno(status); 1172ccd979bdSMark Fasheh goto read_super_error; 1173ccd979bdSMark Fasheh } 1174ccd979bdSMark Fasheh 1175ccd979bdSMark Fasheh sb->s_root = root; 1176ccd979bdSMark Fasheh 1177ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1178ccd979bdSMark Fasheh 1179c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1180c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1181c271c5c2SSunil Mushran else 118219fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1183c271c5c2SSunil Mushran 1184c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1185781ee3e2SSunil Mushran "with %s data mode.\n", 1186c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1187ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1188ccd979bdSMark Fasheh "ordered"); 1189ccd979bdSMark Fasheh 1190ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1191ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1192ccd979bdSMark Fasheh 119319ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 119419ece546SJan Kara * for cluster locks recovery now. That also means that truncation 119519ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 119619ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 119719ece546SJan Kara status = ocfs2_enable_quotas(osb); 119819ece546SJan Kara if (status < 0) { 119919ece546SJan Kara /* We have to err-out specially here because 120019ece546SJan Kara * s_root is already set */ 120119ece546SJan Kara mlog_errno(status); 120219ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 120319ece546SJan Kara wake_up(&osb->osb_mount_event); 120419ece546SJan Kara return status; 120519ece546SJan Kara } 120619ece546SJan Kara } 120719ece546SJan Kara 120819ece546SJan Kara ocfs2_complete_quota_recovery(osb); 120919ece546SJan Kara 121019ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 121119ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 121219ece546SJan Kara wake_up(&osb->osb_mount_event); 121319ece546SJan Kara 1214df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 12158b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1216df152c24SSunil Mushran 1217ccd979bdSMark Fasheh return status; 1218ccd979bdSMark Fasheh 1219ccd979bdSMark Fasheh read_super_error: 1220ccd979bdSMark Fasheh brelse(bh); 1221ccd979bdSMark Fasheh 1222ccd979bdSMark Fasheh if (inode) 1223ccd979bdSMark Fasheh iput(inode); 1224ccd979bdSMark Fasheh 1225ccd979bdSMark Fasheh if (osb) { 1226ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1227ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1228ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1229ccd979bdSMark Fasheh } 1230ccd979bdSMark Fasheh 1231c1e8d35eSTao Ma if (status) 1232c1e8d35eSTao Ma mlog_errno(status); 1233ccd979bdSMark Fasheh return status; 1234ccd979bdSMark Fasheh } 1235ccd979bdSMark Fasheh 1236152a0836SAl Viro static struct dentry *ocfs2_mount(struct file_system_type *fs_type, 1237ccd979bdSMark Fasheh int flags, 1238ccd979bdSMark Fasheh const char *dev_name, 1239152a0836SAl Viro void *data) 1240ccd979bdSMark Fasheh { 1241152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); 1242ccd979bdSMark Fasheh } 1243ccd979bdSMark Fasheh 1244f7b1aa69SJan Kara static void ocfs2_kill_sb(struct super_block *sb) 1245f7b1aa69SJan Kara { 1246f7b1aa69SJan Kara struct ocfs2_super *osb = OCFS2_SB(sb); 1247f7b1aa69SJan Kara 12485fd13189SJan Kara /* Failed mount? */ 12495fd13189SJan Kara if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) 12505fd13189SJan Kara goto out; 12515fd13189SJan Kara 1252f7b1aa69SJan Kara /* Prevent further queueing of inode drop events */ 1253f7b1aa69SJan Kara spin_lock(&dentry_list_lock); 1254f7b1aa69SJan Kara ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); 1255f7b1aa69SJan Kara spin_unlock(&dentry_list_lock); 1256f7b1aa69SJan Kara /* Wait for work to finish and/or remove it */ 1257f7b1aa69SJan Kara cancel_work_sync(&osb->dentry_lock_work); 12585fd13189SJan Kara out: 1259f7b1aa69SJan Kara kill_block_super(sb); 1260f7b1aa69SJan Kara } 1261f7b1aa69SJan Kara 1262ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1263ccd979bdSMark Fasheh .owner = THIS_MODULE, 1264ccd979bdSMark Fasheh .name = "ocfs2", 1265152a0836SAl Viro .mount = ocfs2_mount, 1266f7b1aa69SJan Kara .kill_sb = ocfs2_kill_sb, 1267f7b1aa69SJan Kara 12681ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1269ccd979bdSMark Fasheh .next = NULL 1270ccd979bdSMark Fasheh }; 1271ccd979bdSMark Fasheh 12725297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12735297aad8SJan Kara struct mount_options *options) 12745297aad8SJan Kara { 12755297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12765297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12775297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12785297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12795297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12805297aad8SJan Kara return 0; 12815297aad8SJan Kara } 12825297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12835297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12845297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12855297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12865297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12875297aad8SJan Kara return 0; 12885297aad8SJan Kara } 12895297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12905297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12915297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12925297aad8SJan Kara "feature is not enabled\n"); 12935297aad8SJan Kara return 0; 12945297aad8SJan Kara } 12955297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12965297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12975297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12985297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12995297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 13005297aad8SJan Kara else 13015297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 13025297aad8SJan Kara } 13035297aad8SJan Kara return 1; 13045297aad8SJan Kara } 13055297aad8SJan Kara 1306ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1307ccd979bdSMark Fasheh char *options, 1308c0123adeSTiger Yang struct mount_options *mopt, 1309ccd979bdSMark Fasheh int is_remount) 1310ccd979bdSMark Fasheh { 131152c303c5SMark Fasheh int status, user_stack = 0; 1312ccd979bdSMark Fasheh char *p; 13132c442719SSunil Mushran u32 tmp; 1314ccd979bdSMark Fasheh 131532a42d39STao Ma trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); 1316ccd979bdSMark Fasheh 1317d147b3d6SMark Fasheh mopt->commit_interval = 0; 13184b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1319c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1320c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 132173c8a800SMark Fasheh mopt->localalloc_opt = -1; 1322b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1323d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 132483f92318SMark Fasheh mopt->dir_resv_level = -1; 1325ccd979bdSMark Fasheh 1326ccd979bdSMark Fasheh if (!options) { 1327ccd979bdSMark Fasheh status = 1; 1328ccd979bdSMark Fasheh goto bail; 1329ccd979bdSMark Fasheh } 1330ccd979bdSMark Fasheh 1331ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1332ccd979bdSMark Fasheh int token, option; 1333ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1334ccd979bdSMark Fasheh 1335ccd979bdSMark Fasheh if (!*p) 1336ccd979bdSMark Fasheh continue; 1337ccd979bdSMark Fasheh 1338ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1339ccd979bdSMark Fasheh switch (token) { 1340ccd979bdSMark Fasheh case Opt_hb_local: 1341c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1342ccd979bdSMark Fasheh break; 1343ccd979bdSMark Fasheh case Opt_hb_none: 13442c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; 13452c442719SSunil Mushran break; 13462c442719SSunil Mushran case Opt_hb_global: 13472c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; 1348ccd979bdSMark Fasheh break; 1349ccd979bdSMark Fasheh case Opt_barrier: 1350ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1351ccd979bdSMark Fasheh status = 0; 1352ccd979bdSMark Fasheh goto bail; 1353ccd979bdSMark Fasheh } 1354ccd979bdSMark Fasheh if (option) 1355c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1356ccd979bdSMark Fasheh else 1357c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1358ccd979bdSMark Fasheh break; 1359ccd979bdSMark Fasheh case Opt_intr: 1360c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1361ccd979bdSMark Fasheh break; 1362ccd979bdSMark Fasheh case Opt_nointr: 1363c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1364ccd979bdSMark Fasheh break; 1365ccd979bdSMark Fasheh case Opt_err_panic: 1366c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1367ccd979bdSMark Fasheh break; 1368ccd979bdSMark Fasheh case Opt_err_ro: 1369c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1370ccd979bdSMark Fasheh break; 1371ccd979bdSMark Fasheh case Opt_data_ordered: 1372c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1373ccd979bdSMark Fasheh break; 1374ccd979bdSMark Fasheh case Opt_data_writeback: 1375c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1376ccd979bdSMark Fasheh break; 1377cf1d6c76STiger Yang case Opt_user_xattr: 1378cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1379cf1d6c76STiger Yang break; 1380cf1d6c76STiger Yang case Opt_nouser_xattr: 1381cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1382cf1d6c76STiger Yang break; 13837f1a37e3STiger Yang case Opt_atime_quantum: 13847f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13857f1a37e3STiger Yang status = 0; 13867f1a37e3STiger Yang goto bail; 13877f1a37e3STiger Yang } 13887f1a37e3STiger Yang if (option >= 0) 1389c0123adeSTiger Yang mopt->atime_quantum = option; 13907f1a37e3STiger Yang break; 1391baf4661aSSunil Mushran case Opt_slot: 1392baf4661aSSunil Mushran option = 0; 1393baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1394baf4661aSSunil Mushran status = 0; 1395baf4661aSSunil Mushran goto bail; 1396baf4661aSSunil Mushran } 1397baf4661aSSunil Mushran if (option) 1398c0123adeSTiger Yang mopt->slot = (s16)option; 1399baf4661aSSunil Mushran break; 1400d147b3d6SMark Fasheh case Opt_commit: 1401d147b3d6SMark Fasheh option = 0; 1402d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1403d147b3d6SMark Fasheh status = 0; 1404d147b3d6SMark Fasheh goto bail; 1405d147b3d6SMark Fasheh } 1406d147b3d6SMark Fasheh if (option < 0) 1407d147b3d6SMark Fasheh return 0; 1408d147b3d6SMark Fasheh if (option == 0) 14092b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1410d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1411d147b3d6SMark Fasheh break; 14122fbe8d1eSSunil Mushran case Opt_localalloc: 14132fbe8d1eSSunil Mushran option = 0; 14142fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 14152fbe8d1eSSunil Mushran status = 0; 14162fbe8d1eSSunil Mushran goto bail; 14172fbe8d1eSSunil Mushran } 141873c8a800SMark Fasheh if (option >= 0) 14192fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 14202fbe8d1eSSunil Mushran break; 142153fc622bSMark Fasheh case Opt_localflocks: 142253fc622bSMark Fasheh /* 142353fc622bSMark Fasheh * Changing this during remount could race 142453fc622bSMark Fasheh * flock() requests, or "unbalance" existing 142553fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 142653fc622bSMark Fasheh * dropped in the other). If users care enough 142753fc622bSMark Fasheh * to flip locking modes during remount, we 142853fc622bSMark Fasheh * could add a "local" flag to individual 142953fc622bSMark Fasheh * flock structures for proper tracking of 143053fc622bSMark Fasheh * state. 143153fc622bSMark Fasheh */ 143253fc622bSMark Fasheh if (!is_remount) 143353fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 143453fc622bSMark Fasheh break; 1435b61817e1SJoel Becker case Opt_stack: 1436b61817e1SJoel Becker /* Check both that the option we were passed 1437b61817e1SJoel Becker * is of the right length and that it is a proper 1438b61817e1SJoel Becker * string of the right length. 1439b61817e1SJoel Becker */ 1440b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1441b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1442b61817e1SJoel Becker (strnlen(args[0].from, 1443b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1444b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1445b61817e1SJoel Becker mlog(ML_ERROR, 1446b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1447b61817e1SJoel Becker status = 0; 1448b61817e1SJoel Becker goto bail; 1449b61817e1SJoel Becker } 1450b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1451b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1452b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 145352c303c5SMark Fasheh /* 145452c303c5SMark Fasheh * Open code the memcmp here as we don't have 145552c303c5SMark Fasheh * an osb to pass to 145652c303c5SMark Fasheh * ocfs2_userspace_stack(). 145752c303c5SMark Fasheh */ 145852c303c5SMark Fasheh if (memcmp(mopt->cluster_stack, 145952c303c5SMark Fasheh OCFS2_CLASSIC_CLUSTER_STACK, 146052c303c5SMark Fasheh OCFS2_STACK_LABEL_LEN)) 146152c303c5SMark Fasheh user_stack = 1; 1462b61817e1SJoel Becker break; 146312462f1dSJoel Becker case Opt_inode64: 146412462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 146512462f1dSJoel Becker break; 146619ece546SJan Kara case Opt_usrquota: 146719ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 146819ece546SJan Kara break; 146919ece546SJan Kara case Opt_grpquota: 147019ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 147119ece546SJan Kara break; 14727bdb0d18STristan Ye case Opt_coherency_buffered: 14737bdb0d18STristan Ye mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; 14747bdb0d18STristan Ye break; 14757bdb0d18STristan Ye case Opt_coherency_full: 14767bdb0d18STristan Ye mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; 14777bdb0d18STristan Ye break; 1478a68979b8STiger Yang case Opt_acl: 1479a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14805297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1481a68979b8STiger Yang break; 1482a68979b8STiger Yang case Opt_noacl: 14835297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1484a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1485a68979b8STiger Yang break; 1486d02f00ccSMark Fasheh case Opt_resv_level: 1487d02f00ccSMark Fasheh if (is_remount) 1488d02f00ccSMark Fasheh break; 1489d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1490d02f00ccSMark Fasheh status = 0; 1491d02f00ccSMark Fasheh goto bail; 1492d02f00ccSMark Fasheh } 1493d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1494d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1495d02f00ccSMark Fasheh mopt->resv_level = option; 1496d02f00ccSMark Fasheh break; 149783f92318SMark Fasheh case Opt_dir_resv_level: 149883f92318SMark Fasheh if (is_remount) 149983f92318SMark Fasheh break; 150083f92318SMark Fasheh if (match_int(&args[0], &option)) { 150183f92318SMark Fasheh status = 0; 150283f92318SMark Fasheh goto bail; 150383f92318SMark Fasheh } 150483f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 150583f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 150683f92318SMark Fasheh mopt->dir_resv_level = option; 150783f92318SMark Fasheh break; 1508ccd979bdSMark Fasheh default: 1509ccd979bdSMark Fasheh mlog(ML_ERROR, 1510ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1511ccd979bdSMark Fasheh "or missing value\n", p); 1512ccd979bdSMark Fasheh status = 0; 1513ccd979bdSMark Fasheh goto bail; 1514ccd979bdSMark Fasheh } 1515ccd979bdSMark Fasheh } 1516ccd979bdSMark Fasheh 151752c303c5SMark Fasheh if (user_stack == 0) { 15182c442719SSunil Mushran /* Ensure only one heartbeat mode */ 151952c303c5SMark Fasheh tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | 152052c303c5SMark Fasheh OCFS2_MOUNT_HB_GLOBAL | 15212c442719SSunil Mushran OCFS2_MOUNT_HB_NONE); 15222c442719SSunil Mushran if (hweight32(tmp) != 1) { 15232c442719SSunil Mushran mlog(ML_ERROR, "Invalid heartbeat mount options\n"); 15242c442719SSunil Mushran status = 0; 15252c442719SSunil Mushran goto bail; 15262c442719SSunil Mushran } 152752c303c5SMark Fasheh } 15282c442719SSunil Mushran 1529ccd979bdSMark Fasheh status = 1; 1530ccd979bdSMark Fasheh 1531ccd979bdSMark Fasheh bail: 1532ccd979bdSMark Fasheh return status; 1533ccd979bdSMark Fasheh } 1534ccd979bdSMark Fasheh 1535d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1536d550071cSSunil Mushran { 1537d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1538d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1539ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1540d550071cSSunil Mushran 15412c442719SSunil Mushran if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { 15422c442719SSunil Mushran seq_printf(s, ",_netdev"); 1543d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 15442c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_LOCAL); 1545d550071cSSunil Mushran else 15462c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_GLOBAL); 15472c442719SSunil Mushran } else 15482c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_NONE); 1549d550071cSSunil Mushran 1550d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1551d550071cSSunil Mushran seq_printf(s, ",nointr"); 1552d550071cSSunil Mushran 1553d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1554d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1555d550071cSSunil Mushran else 1556d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1557d550071cSSunil Mushran 1558d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1559d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1560d550071cSSunil Mushran 1561d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1562d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1563d550071cSSunil Mushran else 1564d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1565d550071cSSunil Mushran 1566d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1567d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1568d550071cSSunil Mushran 1569e2b0c215STiger Yang if (!(mnt->mnt_flags & MNT_NOATIME) && !(mnt->mnt_flags & MNT_RELATIME)) 1570d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1571d550071cSSunil Mushran 1572d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1573d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1574d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1575d147b3d6SMark Fasheh 1576ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15776b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1578ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15792fbe8d1eSSunil Mushran 158053fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 158153fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 158253fc622bSMark Fasheh 1583b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1584b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1585b61817e1SJoel Becker osb->osb_cluster_stack); 158619ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 158719ece546SJan Kara seq_printf(s, ",usrquota"); 158819ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 158919ece546SJan Kara seq_printf(s, ",grpquota"); 1590b61817e1SJoel Becker 15917bdb0d18STristan Ye if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) 15927bdb0d18STristan Ye seq_printf(s, ",coherency=buffered"); 15937bdb0d18STristan Ye else 15947bdb0d18STristan Ye seq_printf(s, ",coherency=full"); 15957bdb0d18STristan Ye 1596b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1597b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1598b0f73cfcSSunil Mushran else 1599b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1600b0f73cfcSSunil Mushran 160112462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 160212462f1dSJoel Becker seq_printf(s, ",inode64"); 160312462f1dSJoel Becker 1604a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1605a68979b8STiger Yang seq_printf(s, ",acl"); 1606a68979b8STiger Yang else 1607a68979b8STiger Yang seq_printf(s, ",noacl"); 1608a68979b8STiger Yang 1609d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1610d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1611d02f00ccSMark Fasheh 161283f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 161383f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 161483f92318SMark Fasheh 1615d550071cSSunil Mushran return 0; 1616d550071cSSunil Mushran } 1617d550071cSSunil Mushran 1618ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1619ccd979bdSMark Fasheh { 1620ccd979bdSMark Fasheh int status; 1621ccd979bdSMark Fasheh 1622ccd979bdSMark Fasheh ocfs2_print_version(); 1623ccd979bdSMark Fasheh 1624ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1625ccd979bdSMark Fasheh if (status < 0) { 1626ccd979bdSMark Fasheh mlog_errno(status); 1627ccd979bdSMark Fasheh goto leave; 1628ccd979bdSMark Fasheh } 1629ccd979bdSMark Fasheh 1630ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1631ccd979bdSMark Fasheh if (status < 0) { 1632ccd979bdSMark Fasheh mlog_errno(status); 1633ccd979bdSMark Fasheh goto leave; 1634ccd979bdSMark Fasheh } 1635ccd979bdSMark Fasheh 1636ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1637ccd979bdSMark Fasheh if (!ocfs2_wq) { 1638ccd979bdSMark Fasheh status = -ENOMEM; 1639ccd979bdSMark Fasheh goto leave; 1640ccd979bdSMark Fasheh } 1641ccd979bdSMark Fasheh 1642ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1643ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1644ccd979bdSMark Fasheh status = -EFAULT; 1645ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1646ccd979bdSMark Fasheh } 1647ccd979bdSMark Fasheh 164863e0c48aSJoel Becker ocfs2_set_locking_protocol(); 164963e0c48aSJoel Becker 16509e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1651ccd979bdSMark Fasheh leave: 1652ccd979bdSMark Fasheh if (status < 0) { 1653ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1654ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1655c1e8d35eSTao Ma mlog_errno(status); 1656ccd979bdSMark Fasheh } 1657ccd979bdSMark Fasheh 1658ccd979bdSMark Fasheh if (status >= 0) { 1659ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1660ccd979bdSMark Fasheh } else 1661ccd979bdSMark Fasheh return -1; 1662ccd979bdSMark Fasheh } 1663ccd979bdSMark Fasheh 1664ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1665ccd979bdSMark Fasheh { 1666ccd979bdSMark Fasheh if (ocfs2_wq) { 1667ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1668ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1669ccd979bdSMark Fasheh } 1670ccd979bdSMark Fasheh 16719e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 16729e33d69fSJan Kara 1673ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1674ccd979bdSMark Fasheh 1675ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1676ccd979bdSMark Fasheh 1677ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1678ccd979bdSMark Fasheh 1679ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1680ccd979bdSMark Fasheh } 1681ccd979bdSMark Fasheh 1682ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1683ccd979bdSMark Fasheh { 168432a42d39STao Ma trace_ocfs2_put_super(sb); 1685ccd979bdSMark Fasheh 1686ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1687ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1688ccd979bdSMark Fasheh } 1689ccd979bdSMark Fasheh 1690726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1691ccd979bdSMark Fasheh { 1692ccd979bdSMark Fasheh struct ocfs2_super *osb; 1693ccd979bdSMark Fasheh u32 numbits, freebits; 1694ccd979bdSMark Fasheh int status; 1695ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1696ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1697ccd979bdSMark Fasheh struct inode *inode = NULL; 1698ccd979bdSMark Fasheh 169932a42d39STao Ma trace_ocfs2_statfs(dentry->d_sb, buf); 1700ccd979bdSMark Fasheh 1701726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1702ccd979bdSMark Fasheh 1703ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1704ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1705ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1706ccd979bdSMark Fasheh if (!inode) { 1707ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1708ccd979bdSMark Fasheh status = -EIO; 1709ccd979bdSMark Fasheh goto bail; 1710ccd979bdSMark Fasheh } 1711ccd979bdSMark Fasheh 1712e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1713ccd979bdSMark Fasheh if (status < 0) { 1714ccd979bdSMark Fasheh mlog_errno(status); 1715ccd979bdSMark Fasheh goto bail; 1716ccd979bdSMark Fasheh } 1717ccd979bdSMark Fasheh 1718ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1719ccd979bdSMark Fasheh 1720ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1721ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1722ccd979bdSMark Fasheh 1723ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1724726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1725ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1726ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1727ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1728ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1729ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1730ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1731ccd979bdSMark Fasheh buf->f_files = numbits; 1732ccd979bdSMark Fasheh buf->f_ffree = freebits; 1733837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1734837711f8SColy Li & 0xFFFFFFFFUL; 1735837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1736837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1737ccd979bdSMark Fasheh 1738ccd979bdSMark Fasheh brelse(bh); 1739ccd979bdSMark Fasheh 1740e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1741ccd979bdSMark Fasheh status = 0; 1742ccd979bdSMark Fasheh bail: 1743ccd979bdSMark Fasheh if (inode) 1744ccd979bdSMark Fasheh iput(inode); 1745ccd979bdSMark Fasheh 1746c1e8d35eSTao Ma if (status) 1747c1e8d35eSTao Ma mlog_errno(status); 1748ccd979bdSMark Fasheh 1749ccd979bdSMark Fasheh return status; 1750ccd979bdSMark Fasheh } 1751ccd979bdSMark Fasheh 175251cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1753ccd979bdSMark Fasheh { 1754ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1755ccd979bdSMark Fasheh 1756ccd979bdSMark Fasheh oi->ip_flags = 0; 1757ccd979bdSMark Fasheh oi->ip_open_count = 0; 1758ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 175983418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1760ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1761ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1762ccd979bdSMark Fasheh 1763ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1764cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1765251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1766ccd979bdSMark Fasheh 1767ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1768ccd979bdSMark Fasheh oi->ip_clusters = 0; 1769ccd979bdSMark Fasheh 17704fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 17714fe370afSMark Fasheh 1772ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1773e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 177450008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1775ccd979bdSMark Fasheh 17768cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 17776e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1778ccd979bdSMark Fasheh 1779ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1780ccd979bdSMark Fasheh } 1781ccd979bdSMark Fasheh 1782ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1783ccd979bdSMark Fasheh { 1784ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1785ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1786fffb60f9SPaul Jackson 0, 1787fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1788fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 178920c2df83SPaul Mundt ocfs2_inode_init_once); 17909e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17919e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17929e33d69fSJan Kara 0, 17939e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17949e33d69fSJan Kara SLAB_MEM_SPREAD), 17959e33d69fSJan Kara NULL); 17969e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17979e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17989e33d69fSJan Kara 0, 17999e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 18009e33d69fSJan Kara NULL); 18019e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 18029e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 18039e33d69fSJan Kara if (ocfs2_inode_cachep) 18049e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 18059e33d69fSJan Kara if (ocfs2_dquot_cachep) 18069e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 18079e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 18089e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1809ccd979bdSMark Fasheh return -ENOMEM; 18109e33d69fSJan Kara } 1811ccd979bdSMark Fasheh 1812ccd979bdSMark Fasheh return 0; 1813ccd979bdSMark Fasheh } 1814ccd979bdSMark Fasheh 1815ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1816ccd979bdSMark Fasheh { 1817ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1818ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1819ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 18209e33d69fSJan Kara 18219e33d69fSJan Kara if (ocfs2_dquot_cachep) 18229e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 18239e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 18249e33d69fSJan Kara 18259e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 18269e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 18279e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1828ccd979bdSMark Fasheh } 1829ccd979bdSMark Fasheh 1830ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1831ccd979bdSMark Fasheh struct buffer_head **bh, 1832ccd979bdSMark Fasheh int block, 1833ccd979bdSMark Fasheh int sect_size) 1834ccd979bdSMark Fasheh { 1835ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1836ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1837ccd979bdSMark Fasheh return -EIO; 1838ccd979bdSMark Fasheh } 1839ccd979bdSMark Fasheh 1840ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1841ccd979bdSMark Fasheh if (!*bh) { 1842ccd979bdSMark Fasheh mlog_errno(-EIO); 1843ccd979bdSMark Fasheh return -EIO; 1844ccd979bdSMark Fasheh } 1845ccd979bdSMark Fasheh lock_buffer(*bh); 1846ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1847ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1848ccd979bdSMark Fasheh unlock_buffer(*bh); 1849ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1850ccd979bdSMark Fasheh wait_on_buffer(*bh); 185128d57d43Swengang wang if (!buffer_uptodate(*bh)) { 185228d57d43Swengang wang mlog_errno(-EIO); 185328d57d43Swengang wang brelse(*bh); 185428d57d43Swengang wang *bh = NULL; 185528d57d43Swengang wang return -EIO; 185628d57d43Swengang wang } 185728d57d43Swengang wang 1858ccd979bdSMark Fasheh return 0; 1859ccd979bdSMark Fasheh } 1860ccd979bdSMark Fasheh 1861ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1862ccd979bdSMark Fasheh { 1863ccd979bdSMark Fasheh int status = 0; 1864ccd979bdSMark Fasheh int unlock_super = 0; 1865ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1866ccd979bdSMark Fasheh 1867ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1868ccd979bdSMark Fasheh goto leave; 1869ccd979bdSMark Fasheh 1870ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1871ccd979bdSMark Fasheh if (status < 0) { 1872ccd979bdSMark Fasheh mlog_errno(status); 1873ccd979bdSMark Fasheh goto leave; 1874ccd979bdSMark Fasheh } 1875ccd979bdSMark Fasheh 1876ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1877ccd979bdSMark Fasheh if (status < 0) { 1878ccd979bdSMark Fasheh mlog_errno(status); 1879ccd979bdSMark Fasheh goto leave; 1880ccd979bdSMark Fasheh } 1881ccd979bdSMark Fasheh unlock_super = 1; 1882ccd979bdSMark Fasheh 1883ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1884ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1885ccd979bdSMark Fasheh if (status < 0) { 1886ccd979bdSMark Fasheh mlog_errno(status); 1887ccd979bdSMark Fasheh goto leave; 1888ccd979bdSMark Fasheh } 1889ccd979bdSMark Fasheh 1890ccd979bdSMark Fasheh /* load all node-local system inodes */ 1891ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1892ccd979bdSMark Fasheh if (status < 0) { 1893ccd979bdSMark Fasheh mlog_errno(status); 1894ccd979bdSMark Fasheh goto leave; 1895ccd979bdSMark Fasheh } 1896ccd979bdSMark Fasheh 1897ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1898ccd979bdSMark Fasheh if (status < 0) { 1899ccd979bdSMark Fasheh mlog_errno(status); 1900ccd979bdSMark Fasheh goto leave; 1901ccd979bdSMark Fasheh } 1902ccd979bdSMark Fasheh 1903ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 190406c59bb8STao Ma if (status < 0) 1905ccd979bdSMark Fasheh mlog_errno(status); 1906c271c5c2SSunil Mushran 1907ccd979bdSMark Fasheh leave: 1908ccd979bdSMark Fasheh if (unlock_super) 1909ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1910ccd979bdSMark Fasheh 1911ccd979bdSMark Fasheh return status; 1912ccd979bdSMark Fasheh } 1913ccd979bdSMark Fasheh 1914ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1915ccd979bdSMark Fasheh { 1916286eaa95SJoel Becker int tmp, hangup_needed = 0; 1917ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1918c271c5c2SSunil Mushran char nodestr[8]; 1919ccd979bdSMark Fasheh 192032a42d39STao Ma trace_ocfs2_dismount_volume(sb); 1921ccd979bdSMark Fasheh 1922ccd979bdSMark Fasheh BUG_ON(!sb); 1923ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1924ccd979bdSMark Fasheh BUG_ON(!osb); 1925ccd979bdSMark Fasheh 192650397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 192750397507SSunil Mushran 1928f7b1aa69SJan Kara /* 1929f7b1aa69SJan Kara * Flush inode dropping work queue so that deletes are 1930f7b1aa69SJan Kara * performed while the filesystem is still working 1931f7b1aa69SJan Kara */ 1932f7b1aa69SJan Kara ocfs2_drop_all_dl_inodes(osb); 1933f7b1aa69SJan Kara 1934692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1935692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1936692684e1SSunil Mushran 193719ece546SJan Kara ocfs2_disable_quotas(osb); 193819ece546SJan Kara 1939ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1940ccd979bdSMark Fasheh 1941ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1942ccd979bdSMark Fasheh 1943553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1944553abd04SJoel Becker ocfs2_recovery_exit(osb); 1945ccd979bdSMark Fasheh 1946ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1947ccd979bdSMark Fasheh 1948ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1949ccd979bdSMark Fasheh 1950374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1951374a263eSTao Ma 19524670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 19534670c46dSJoel Becker * all the steps which depended on that to complete. */ 19544670c46dSJoel Becker if (osb->cconn) { 1955ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1956ccd979bdSMark Fasheh if (tmp < 0) { 1957ccd979bdSMark Fasheh mlog_errno(tmp); 1958ccd979bdSMark Fasheh return; 1959ccd979bdSMark Fasheh } 196019b613d4SMark Fasheh } 1961ccd979bdSMark Fasheh 1962ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1963ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1964ccd979bdSMark Fasheh 19654670c46dSJoel Becker if (osb->cconn) 1966ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1967ccd979bdSMark Fasheh 1968ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1969ccd979bdSMark Fasheh 19706953b4c0SJoel Becker /* 19716953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19726953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19736953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19746953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19756953b4c0SJoel Becker */ 19766953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1977286eaa95SJoel Becker hangup_needed = 1; 1978286eaa95SJoel Becker 1979286eaa95SJoel Becker if (osb->cconn) 1980286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1981286eaa95SJoel Becker 198273be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1983286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1984286eaa95SJoel Becker 1985286eaa95SJoel Becker if (hangup_needed) 19866953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1987ccd979bdSMark Fasheh 1988ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1989ccd979bdSMark Fasheh 1990c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1991c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1992c271c5c2SSunil Mushran else 199319fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1994c271c5c2SSunil Mushran 1995c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1996c271c5c2SSunil Mushran osb->dev_str, nodestr); 1997ccd979bdSMark Fasheh 1998ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1999ccd979bdSMark Fasheh kfree(osb); 2000ccd979bdSMark Fasheh sb->s_dev = 0; 2001ccd979bdSMark Fasheh sb->s_fs_info = NULL; 2002ccd979bdSMark Fasheh } 2003ccd979bdSMark Fasheh 2004ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 2005ccd979bdSMark Fasheh unsigned uuid_bytes) 2006ccd979bdSMark Fasheh { 2007ccd979bdSMark Fasheh int i, ret; 2008ccd979bdSMark Fasheh char *ptr; 2009ccd979bdSMark Fasheh 2010ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 2011ccd979bdSMark Fasheh 2012cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 2013ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 2014ccd979bdSMark Fasheh return -ENOMEM; 2015ccd979bdSMark Fasheh 2016ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 2017ccd979bdSMark Fasheh /* print with null */ 2018ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 2019ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 2020ccd979bdSMark Fasheh return -EINVAL; 2021ccd979bdSMark Fasheh /* then only advance past the last char */ 2022ccd979bdSMark Fasheh ptr += 2; 2023ccd979bdSMark Fasheh } 2024ccd979bdSMark Fasheh 2025ccd979bdSMark Fasheh return 0; 2026ccd979bdSMark Fasheh } 2027ccd979bdSMark Fasheh 20283bdb8efdSPatrick J. LoPresti /* Make sure entire volume is addressable by our journal. Requires 20293bdb8efdSPatrick J. LoPresti osb_clusters_at_boot to be valid and for the journal to have been 20303bdb8efdSPatrick J. LoPresti initialized by ocfs2_journal_init(). */ 20313bdb8efdSPatrick J. LoPresti static int ocfs2_journal_addressable(struct ocfs2_super *osb) 20323bdb8efdSPatrick J. LoPresti { 20333bdb8efdSPatrick J. LoPresti int status = 0; 20343bdb8efdSPatrick J. LoPresti u64 max_block = 20353bdb8efdSPatrick J. LoPresti ocfs2_clusters_to_blocks(osb->sb, 20363bdb8efdSPatrick J. LoPresti osb->osb_clusters_at_boot) - 1; 20373bdb8efdSPatrick J. LoPresti 20383bdb8efdSPatrick J. LoPresti /* 32-bit block number is always OK. */ 20393bdb8efdSPatrick J. LoPresti if (max_block <= (u32)~0ULL) 20403bdb8efdSPatrick J. LoPresti goto out; 20413bdb8efdSPatrick J. LoPresti 20423bdb8efdSPatrick J. LoPresti /* Volume is "huge", so see if our journal is new enough to 20433bdb8efdSPatrick J. LoPresti support it. */ 20443bdb8efdSPatrick J. LoPresti if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, 20453bdb8efdSPatrick J. LoPresti OCFS2_FEATURE_COMPAT_JBD2_SB) && 20463bdb8efdSPatrick J. LoPresti jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, 20473bdb8efdSPatrick J. LoPresti JBD2_FEATURE_INCOMPAT_64BIT))) { 20483bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "The journal cannot address the entire volume. " 20493bdb8efdSPatrick J. LoPresti "Enable the 'block64' journal option with tunefs.ocfs2"); 20503bdb8efdSPatrick J. LoPresti status = -EFBIG; 20513bdb8efdSPatrick J. LoPresti goto out; 20523bdb8efdSPatrick J. LoPresti } 20533bdb8efdSPatrick J. LoPresti 20543bdb8efdSPatrick J. LoPresti out: 20553bdb8efdSPatrick J. LoPresti return status; 20563bdb8efdSPatrick J. LoPresti } 20573bdb8efdSPatrick J. LoPresti 2058ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 2059ccd979bdSMark Fasheh struct buffer_head *bh, 206073be192bSJoel Becker int sector_size, 206173be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2062ccd979bdSMark Fasheh { 2063bddb8eb3SDenis Cheng int status; 20645a254031SMark Fasheh int i, cbits, bbits; 20655a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2066ccd979bdSMark Fasheh struct inode *inode = NULL; 2067ccd979bdSMark Fasheh struct ocfs2_journal *journal; 2068ccd979bdSMark Fasheh __le32 uuid_net_key; 2069ccd979bdSMark Fasheh struct ocfs2_super *osb; 20703bdb8efdSPatrick J. LoPresti u64 total_blocks; 2071ccd979bdSMark Fasheh 2072cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2073ccd979bdSMark Fasheh if (!osb) { 2074ccd979bdSMark Fasheh status = -ENOMEM; 2075ccd979bdSMark Fasheh mlog_errno(status); 2076ccd979bdSMark Fasheh goto bail; 2077ccd979bdSMark Fasheh } 2078ccd979bdSMark Fasheh 2079ccd979bdSMark Fasheh sb->s_fs_info = osb; 2080ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2081ba87167cSAl Viro sb->s_d_op = &ocfs2_dentry_ops; 2082ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 208319ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 208419ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 2085cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2086e0dceaf0SMark Fasheh sb->s_time_gran = 1; 2087ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 2088ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20895a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20905a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20915a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 2092ccd979bdSMark Fasheh 20939b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20949b7895efSMark Fasheh 20959b7895efSMark Fasheh for (i = 0; i < 3; i++) 20969b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 20979b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 20989b7895efSMark Fasheh 2099ccd979bdSMark Fasheh osb->sb = sb; 2100ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 2101ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2102ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2103ccd979bdSMark Fasheh 210434d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 210534d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 210634d024f8SMark Fasheh osb->dc_work_sequence = 0; 210734d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2108ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2109ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2110ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2111c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2112b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2113ccd979bdSMark Fasheh 2114ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2115ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2116ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2117ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2118ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2119ccd979bdSMark Fasheh 212073be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 212173be192bSJoel Becker osb->osb_ecc_stats = *stats; 212273be192bSJoel Becker 2123ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2124ccd979bdSMark Fasheh 2125ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2126ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2127ccd979bdSMark Fasheh 212875d9bbc7SGoldwyn Rodrigues osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 212975d9bbc7SGoldwyn Rodrigues if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 213075d9bbc7SGoldwyn Rodrigues mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 213175d9bbc7SGoldwyn Rodrigues osb->max_slots); 213275d9bbc7SGoldwyn Rodrigues status = -EINVAL; 213375d9bbc7SGoldwyn Rodrigues goto bail; 213475d9bbc7SGoldwyn Rodrigues } 213575d9bbc7SGoldwyn Rodrigues 21368b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 21378b712cd5SJeff Mahoney 2138553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2139553abd04SJoel Becker if (status) { 2140553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2141553abd04SJoel Becker mlog_errno(status); 2142553abd04SJoel Becker goto bail; 2143553abd04SJoel Becker } 2144ccd979bdSMark Fasheh 2145ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2146ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 2147ccd979bdSMark Fasheh 21487f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 21497f1a37e3STiger Yang 2150ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2151ccd979bdSMark Fasheh 21528154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 21538154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2154fdd77704STiger Yang 2155ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2156ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 21579c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2158ccd979bdSMark Fasheh 2159ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2160ccd979bdSMark Fasheh 2161d02f00ccSMark Fasheh status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2162d02f00ccSMark Fasheh if (status) { 2163d02f00ccSMark Fasheh mlog_errno(status); 2164d02f00ccSMark Fasheh goto bail; 2165d02f00ccSMark Fasheh } 2166d02f00ccSMark Fasheh 2167ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2168ccd979bdSMark Fasheh if (!osb->vol_label) { 2169ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2170ccd979bdSMark Fasheh status = -ENOMEM; 2171ccd979bdSMark Fasheh goto bail; 2172ccd979bdSMark Fasheh } 2173ccd979bdSMark Fasheh 2174539d8264SSunil Mushran osb->slot_recovery_generations = 2175539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2176539d8264SSunil Mushran GFP_KERNEL); 2177539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2178539d8264SSunil Mushran status = -ENOMEM; 2179539d8264SSunil Mushran mlog_errno(status); 2180539d8264SSunil Mushran goto bail; 2181539d8264SSunil Mushran } 2182539d8264SSunil Mushran 2183b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2184b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2185b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2186b4df6ed8SMark Fasheh GFP_KERNEL); 2187b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2188b4df6ed8SMark Fasheh status = -ENOMEM; 2189b4df6ed8SMark Fasheh mlog_errno(status); 2190b4df6ed8SMark Fasheh goto bail; 2191b4df6ed8SMark Fasheh } 2192b4df6ed8SMark Fasheh 2193374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2194374a263eSTao Ma 2195ccd979bdSMark Fasheh osb->s_feature_compat = 2196ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2197ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2198ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2199ccd979bdSMark Fasheh osb->s_feature_incompat = 2200ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2201ccd979bdSMark Fasheh 2202ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2203ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2204ccd979bdSMark Fasheh "optional features (%x).\n", i); 2205ccd979bdSMark Fasheh status = -EINVAL; 2206ccd979bdSMark Fasheh goto bail; 2207ccd979bdSMark Fasheh } 2208ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2209ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2210ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2211ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2212ccd979bdSMark Fasheh status = -EINVAL; 2213ccd979bdSMark Fasheh goto bail; 2214ccd979bdSMark Fasheh } 2215ccd979bdSMark Fasheh 221698f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 221798f486f2SSunil Mushran osb->osb_stackflags = 221898f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2219b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2220b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2221b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2222b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2223b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2224b61817e1SJoel Becker mlog(ML_ERROR, 2225b61817e1SJoel Becker "couldn't mount because of an invalid " 2226b61817e1SJoel Becker "cluster stack label (%s) \n", 2227b61817e1SJoel Becker osb->osb_cluster_stack); 2228b61817e1SJoel Becker status = -EINVAL; 2229b61817e1SJoel Becker goto bail; 2230b61817e1SJoel Becker } 2231b61817e1SJoel Becker } else { 2232b61817e1SJoel Becker /* The empty string is identical with classic tools that 2233b61817e1SJoel Becker * don't know about s_cluster_info. */ 2234b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2235b61817e1SJoel Becker } 2236b61817e1SJoel Becker 2237ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2238ccd979bdSMark Fasheh 2239ccd979bdSMark Fasheh /* FIXME 2240ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2241ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2242ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2243ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2244ccd979bdSMark Fasheh * be my guest. 2245ccd979bdSMark Fasheh */ 2246ccd979bdSMark Fasheh /* initialize our journal structure */ 2247ccd979bdSMark Fasheh 2248cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2249ccd979bdSMark Fasheh if (!journal) { 2250ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2251ccd979bdSMark Fasheh status = -ENOMEM; 2252ccd979bdSMark Fasheh goto bail; 2253ccd979bdSMark Fasheh } 2254ccd979bdSMark Fasheh osb->journal = journal; 2255ccd979bdSMark Fasheh journal->j_osb = osb; 2256ccd979bdSMark Fasheh 2257ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2258ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2259ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2260ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2261ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2262ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2263c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2264ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2265ccd979bdSMark Fasheh 2266ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2267ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2268ea455f8aSJan Kara 2269ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2270ccd979bdSMark Fasheh osb->s_clustersize_bits = 2271ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2272ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2273ccd979bdSMark Fasheh 2274ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2275ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2276ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2277ccd979bdSMark Fasheh osb->s_clustersize); 2278ccd979bdSMark Fasheh status = -EINVAL; 2279ccd979bdSMark Fasheh goto bail; 2280ccd979bdSMark Fasheh } 2281ccd979bdSMark Fasheh 22823bdb8efdSPatrick J. LoPresti total_blocks = ocfs2_clusters_to_blocks(osb->sb, 22833bdb8efdSPatrick J. LoPresti le32_to_cpu(di->i_clusters)); 22843bdb8efdSPatrick J. LoPresti 22853bdb8efdSPatrick J. LoPresti status = generic_check_addressable(osb->sb->s_blocksize_bits, 22863bdb8efdSPatrick J. LoPresti total_blocks); 22873bdb8efdSPatrick J. LoPresti if (status) { 22883bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "Volume too large " 22893bdb8efdSPatrick J. LoPresti "to mount safely on this system"); 22903bdb8efdSPatrick J. LoPresti status = -EFBIG; 2291ccd979bdSMark Fasheh goto bail; 2292ccd979bdSMark Fasheh } 2293ccd979bdSMark Fasheh 2294ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2295ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2296ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2297ccd979bdSMark Fasheh status = -ENOMEM; 2298ccd979bdSMark Fasheh goto bail; 2299ccd979bdSMark Fasheh } 2300ccd979bdSMark Fasheh 230178427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2302ccd979bdSMark Fasheh 2303ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2304ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2305ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2306ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2307ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2308ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2309ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2310cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 231132a42d39STao Ma trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, 2312b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 231332a42d39STao Ma (unsigned long long)osb->system_dir_blkno, 231432a42d39STao Ma osb->s_clustersize_bits); 2315ccd979bdSMark Fasheh 2316ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2317ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2318ccd979bdSMark Fasheh status = -ENOMEM; 2319ccd979bdSMark Fasheh mlog_errno(status); 2320ccd979bdSMark Fasheh goto bail; 2321ccd979bdSMark Fasheh } 2322ccd979bdSMark Fasheh 2323ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2324ccd979bdSMark Fasheh 2325ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2326ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2327ccd979bdSMark Fasheh if (status < 0) { 2328ccd979bdSMark Fasheh mlog_errno(status); 2329ccd979bdSMark Fasheh goto bail; 2330ccd979bdSMark Fasheh } 2331ccd979bdSMark Fasheh 2332ccd979bdSMark Fasheh /* 2333ccd979bdSMark Fasheh * global bitmap 2334ccd979bdSMark Fasheh */ 2335ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2336ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2337ccd979bdSMark Fasheh if (!inode) { 2338ccd979bdSMark Fasheh status = -EINVAL; 2339ccd979bdSMark Fasheh mlog_errno(status); 2340ccd979bdSMark Fasheh goto bail; 2341ccd979bdSMark Fasheh } 2342ccd979bdSMark Fasheh 2343ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 23446b82021bSMark Fasheh osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; 2345ccd979bdSMark Fasheh iput(inode); 2346ccd979bdSMark Fasheh 23478571882cSTao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, 23488571882cSTao Ma osb->s_feature_incompat) * 8; 2349ccd979bdSMark Fasheh 2350ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2351ccd979bdSMark Fasheh if (status < 0) { 2352ccd979bdSMark Fasheh mlog_errno(status); 2353ccd979bdSMark Fasheh goto bail; 2354ccd979bdSMark Fasheh } 2355ccd979bdSMark Fasheh 2356ccd979bdSMark Fasheh bail: 2357ccd979bdSMark Fasheh return status; 2358ccd979bdSMark Fasheh } 2359ccd979bdSMark Fasheh 2360ccd979bdSMark Fasheh /* 2361ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2362ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2363ccd979bdSMark Fasheh * 0 on success 2364ccd979bdSMark Fasheh */ 2365ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2366ccd979bdSMark Fasheh struct buffer_head *bh, 236773be192bSJoel Becker u32 blksz, 236873be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2369ccd979bdSMark Fasheh { 2370ccd979bdSMark Fasheh int status = -EAGAIN; 2371ccd979bdSMark Fasheh 2372ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2373ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2374d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2375d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2376d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2377d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2378d030cc97SJoel Becker bh->b_size, 237973be192bSJoel Becker &di->i_check, 238073be192bSJoel Becker stats); 2381d030cc97SJoel Becker if (status) 2382d030cc97SJoel Becker goto out; 2383d030cc97SJoel Becker } 2384ccd979bdSMark Fasheh status = -EINVAL; 2385ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2386ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2387ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2388ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2389ccd979bdSMark Fasheh blksz); 2390ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2391ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2392ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2393ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2394ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2395ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2396ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2397ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2398ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2399ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2400ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2401ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2402b0697053SMark Fasheh "found %llu, should be %llu\n", 24031ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2404b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2405ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2406ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2407ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2408ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2409ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2410ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2411ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2412ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2413ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2414ccd979bdSMark Fasheh mlog(ML_ERROR, 2415ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2416ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2417ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2418ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2419ccd979bdSMark Fasheh } else { 2420ccd979bdSMark Fasheh /* found it! */ 2421ccd979bdSMark Fasheh status = 0; 2422ccd979bdSMark Fasheh } 2423ccd979bdSMark Fasheh } 2424ccd979bdSMark Fasheh 2425d030cc97SJoel Becker out: 2426c1e8d35eSTao Ma if (status && status != -EAGAIN) 2427c1e8d35eSTao Ma mlog_errno(status); 2428ccd979bdSMark Fasheh return status; 2429ccd979bdSMark Fasheh } 2430ccd979bdSMark Fasheh 2431ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2432ccd979bdSMark Fasheh { 2433bddb8eb3SDenis Cheng int status; 2434ccd979bdSMark Fasheh int dirty; 2435c271c5c2SSunil Mushran int local; 2436ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2437ccd979bdSMark Fasheh * recover 2438ccd979bdSMark Fasheh * ourselves. */ 2439ccd979bdSMark Fasheh 2440ccd979bdSMark Fasheh /* Init our journal object. */ 2441ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2442ccd979bdSMark Fasheh if (status < 0) { 2443ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2444ccd979bdSMark Fasheh goto finally; 2445ccd979bdSMark Fasheh } 2446ccd979bdSMark Fasheh 24473bdb8efdSPatrick J. LoPresti /* Now that journal has been initialized, check to make sure 24483bdb8efdSPatrick J. LoPresti entire volume is addressable. */ 24493bdb8efdSPatrick J. LoPresti status = ocfs2_journal_addressable(osb); 24503bdb8efdSPatrick J. LoPresti if (status) 24513bdb8efdSPatrick J. LoPresti goto finally; 24523bdb8efdSPatrick J. LoPresti 2453ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2454ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2455ccd979bdSMark Fasheh * dirty work for us :) */ 2456ccd979bdSMark Fasheh if (!dirty) { 2457ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2458ccd979bdSMark Fasheh if (status < 0) { 2459ccd979bdSMark Fasheh mlog_errno(status); 2460ccd979bdSMark Fasheh goto finally; 2461ccd979bdSMark Fasheh } 2462ccd979bdSMark Fasheh } else { 2463ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2464ccd979bdSMark Fasheh "recovering volume.\n"); 2465ccd979bdSMark Fasheh } 2466ccd979bdSMark Fasheh 2467c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2468c271c5c2SSunil Mushran 2469ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2470539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 247101af4820SWengang Wang if (status < 0) { 247201af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 247301af4820SWengang Wang goto finally; 247401af4820SWengang Wang } 2475ccd979bdSMark Fasheh 2476ccd979bdSMark Fasheh if (dirty) { 2477ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2478ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2479ccd979bdSMark Fasheh osb->slot_num, 2480ccd979bdSMark Fasheh &local_alloc); 2481ccd979bdSMark Fasheh if (status < 0) { 2482ccd979bdSMark Fasheh mlog_errno(status); 2483ccd979bdSMark Fasheh goto finally; 2484ccd979bdSMark Fasheh } 2485ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2486ccd979bdSMark Fasheh * ourselves as mounted. */ 2487ccd979bdSMark Fasheh } 2488ccd979bdSMark Fasheh 2489ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2490ccd979bdSMark Fasheh if (status < 0) { 2491ccd979bdSMark Fasheh mlog_errno(status); 2492ccd979bdSMark Fasheh goto finally; 2493ccd979bdSMark Fasheh } 2494ccd979bdSMark Fasheh 2495ccd979bdSMark Fasheh if (dirty) { 2496ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2497ccd979bdSMark Fasheh * rest of the volume. */ 2498ccd979bdSMark Fasheh osb->dirty = 1; 2499ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2500ccd979bdSMark Fasheh local_alloc = NULL; 2501ccd979bdSMark Fasheh } 2502ccd979bdSMark Fasheh 2503ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2504ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2505ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2506ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 25079140db04SSrinivas Eeda if (status < 0) { 25089140db04SSrinivas Eeda mlog_errno(status); 25099140db04SSrinivas Eeda goto finally; 25109140db04SSrinivas Eeda } 25119140db04SSrinivas Eeda 25129140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2513ccd979bdSMark Fasheh if (status < 0) 2514ccd979bdSMark Fasheh mlog_errno(status); 2515ccd979bdSMark Fasheh 2516ccd979bdSMark Fasheh finally: 2517ccd979bdSMark Fasheh if (local_alloc) 2518ccd979bdSMark Fasheh kfree(local_alloc); 2519ccd979bdSMark Fasheh 2520c1e8d35eSTao Ma if (status) 2521c1e8d35eSTao Ma mlog_errno(status); 2522ccd979bdSMark Fasheh return status; 2523ccd979bdSMark Fasheh } 2524ccd979bdSMark Fasheh 2525ccd979bdSMark Fasheh /* 2526ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2527ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2528ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2529ccd979bdSMark Fasheh * initialized resources and fileobject. 2530ccd979bdSMark Fasheh */ 2531ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2532ccd979bdSMark Fasheh { 2533ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2534ccd979bdSMark Fasheh 25358e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2536ccd979bdSMark Fasheh 2537b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2538539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2539ccd979bdSMark Fasheh /* FIXME 2540ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2541421f91d2SUwe Kleine-König * allocate osb->journal at the start of ocfs2_initialize_osb(), 2542ccd979bdSMark Fasheh * we free it here. 2543ccd979bdSMark Fasheh */ 2544ccd979bdSMark Fasheh kfree(osb->journal); 2545ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2546ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2547ccd979bdSMark Fasheh kfree(osb->uuid_str); 2548ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2549ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2550ccd979bdSMark Fasheh } 2551ccd979bdSMark Fasheh 2552ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2553ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2554ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2555ccd979bdSMark Fasheh { 2556ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2557ccd979bdSMark Fasheh 2558ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2559ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2560ccd979bdSMark Fasheh sb->s_id); 2561ccd979bdSMark Fasheh 2562ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2563ccd979bdSMark Fasheh 2564ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2565ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2566ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2567ccd979bdSMark Fasheh return; 2568ccd979bdSMark Fasheh 2569ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2570ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2571ccd979bdSMark Fasheh "system is unmounted.\n"); 2572ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2573ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2574ccd979bdSMark Fasheh } 2575ccd979bdSMark Fasheh 2576ccd979bdSMark Fasheh static char error_buf[1024]; 2577ccd979bdSMark Fasheh 2578ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2579ccd979bdSMark Fasheh const char *function, 2580ccd979bdSMark Fasheh const char *fmt, ...) 2581ccd979bdSMark Fasheh { 2582ccd979bdSMark Fasheh va_list args; 2583ccd979bdSMark Fasheh 2584ccd979bdSMark Fasheh va_start(args, fmt); 25854a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2586ccd979bdSMark Fasheh va_end(args); 2587ccd979bdSMark Fasheh 2588ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2589ccd979bdSMark Fasheh * function the error came from. */ 2590ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2591ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2592ccd979bdSMark Fasheh 2593ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2594ccd979bdSMark Fasheh } 2595ccd979bdSMark Fasheh 2596ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2597ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2598ccd979bdSMark Fasheh * etc. */ 2599ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2600ccd979bdSMark Fasheh const char *function, 2601ccd979bdSMark Fasheh const char *fmt, ...) 2602ccd979bdSMark Fasheh { 2603ccd979bdSMark Fasheh va_list args; 2604ccd979bdSMark Fasheh 2605ccd979bdSMark Fasheh va_start(args, fmt); 26064a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2607ccd979bdSMark Fasheh va_end(args); 2608ccd979bdSMark Fasheh 2609ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2610ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2611ccd979bdSMark Fasheh 2612ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2613ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2614ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2615ccd979bdSMark Fasheh * errors. 2616ccd979bdSMark Fasheh * 2617ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2618ccd979bdSMark Fasheh * that our slot needs recovery. */ 2619ccd979bdSMark Fasheh 2620ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2621ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2622ccd979bdSMark Fasheh * here. */ 2623a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2624ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2625ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2626ccd979bdSMark Fasheh } 2627ccd979bdSMark Fasheh 2628e4b963f1SJoel Becker /* 2629e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2630e4b963f1SJoel Becker * when SIG_* is wrong. 2631e4b963f1SJoel Becker */ 2632e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2633e4b963f1SJoel Becker { 2634e4b963f1SJoel Becker int rc; 2635e4b963f1SJoel Becker sigset_t blocked; 2636e4b963f1SJoel Becker 2637e4b963f1SJoel Becker sigfillset(&blocked); 2638e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2639e4b963f1SJoel Becker BUG_ON(rc); 2640e4b963f1SJoel Becker } 2641e4b963f1SJoel Becker 2642e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2643e4b963f1SJoel Becker { 2644e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2645e4b963f1SJoel Becker BUG_ON(rc); 2646e4b963f1SJoel Becker } 2647e4b963f1SJoel Becker 2648ccd979bdSMark Fasheh module_init(ocfs2_init); 2649ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2650