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/utsname.h> 32ccd979bdSMark Fasheh #include <linux/init.h> 33ccd979bdSMark Fasheh #include <linux/random.h> 34ccd979bdSMark Fasheh #include <linux/statfs.h> 35ccd979bdSMark Fasheh #include <linux/moduleparam.h> 36ccd979bdSMark Fasheh #include <linux/blkdev.h> 37ccd979bdSMark Fasheh #include <linux/socket.h> 38ccd979bdSMark Fasheh #include <linux/inet.h> 39ccd979bdSMark Fasheh #include <linux/parser.h> 40ccd979bdSMark Fasheh #include <linux/crc32.h> 41ccd979bdSMark Fasheh #include <linux/debugfs.h> 42d550071cSSunil Mushran #include <linux/mount.h> 436953b4c0SJoel Becker #include <linux/seq_file.h> 4419ece546SJan Kara #include <linux/quotaops.h> 45ccd979bdSMark Fasheh 46ccd979bdSMark Fasheh #define MLOG_MASK_PREFIX ML_SUPER 47ccd979bdSMark Fasheh #include <cluster/masklog.h> 48ccd979bdSMark Fasheh 49ccd979bdSMark Fasheh #include "ocfs2.h" 50ccd979bdSMark Fasheh 51ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 52ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 53ccd979bdSMark Fasheh 54ccd979bdSMark Fasheh #include "alloc.h" 55d030cc97SJoel Becker #include "blockcheck.h" 56ccd979bdSMark Fasheh #include "dlmglue.h" 57ccd979bdSMark Fasheh #include "export.h" 58ccd979bdSMark Fasheh #include "extent_map.h" 59ccd979bdSMark Fasheh #include "heartbeat.h" 60ccd979bdSMark Fasheh #include "inode.h" 61ccd979bdSMark Fasheh #include "journal.h" 62ccd979bdSMark Fasheh #include "localalloc.h" 63ccd979bdSMark Fasheh #include "namei.h" 64ccd979bdSMark Fasheh #include "slot_map.h" 65ccd979bdSMark Fasheh #include "super.h" 66ccd979bdSMark Fasheh #include "sysfile.h" 67ccd979bdSMark Fasheh #include "uptodate.h" 68ccd979bdSMark Fasheh #include "ver.h" 69cf1d6c76STiger Yang #include "xattr.h" 709e33d69fSJan Kara #include "quota.h" 71ccd979bdSMark Fasheh 72ccd979bdSMark Fasheh #include "buffer_head_io.h" 73ccd979bdSMark Fasheh 74e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 759e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 769e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 77ccd979bdSMark Fasheh 78ccd979bdSMark Fasheh /* OCFS2 needs to schedule several differnt types of work which 79ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 80ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 81ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 82ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 83ccd979bdSMark Fasheh 84ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 85ccd979bdSMark Fasheh 86ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 87ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 88ccd979bdSMark Fasheh 89c0123adeSTiger Yang struct mount_options 90c0123adeSTiger Yang { 91d147b3d6SMark Fasheh unsigned long commit_interval; 92c0123adeSTiger Yang unsigned long mount_opt; 93c0123adeSTiger Yang unsigned int atime_quantum; 94c0123adeSTiger Yang signed short slot; 952fbe8d1eSSunil Mushran unsigned int localalloc_opt; 96b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 97c0123adeSTiger Yang }; 98c0123adeSTiger Yang 99ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 100c0123adeSTiger Yang struct mount_options *mopt, 101baf4661aSSunil Mushran int is_remount); 102d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 103ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 104ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 105ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 106ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 107ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 108ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 109ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 110ccd979bdSMark Fasheh 111726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 112ccd979bdSMark Fasheh 113ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 114ccd979bdSMark Fasheh 115ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 116ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 117bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 118ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 119ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 120ccd979bdSMark Fasheh struct buffer_head *bh, 121ccd979bdSMark Fasheh u32 sectsize); 122ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 123ccd979bdSMark Fasheh struct buffer_head *bh, 124ccd979bdSMark Fasheh int sector_size); 125ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 126ccd979bdSMark Fasheh struct buffer_head **bh, 127ccd979bdSMark Fasheh int block, 128ccd979bdSMark Fasheh int sect_size); 129ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 130ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 13119ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 13219ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 13319ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 134ccd979bdSMark Fasheh 135ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 136ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 137ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 138ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 139ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 140ccd979bdSMark Fasheh .clear_inode = ocfs2_clear_inode, 141ccd979bdSMark Fasheh .delete_inode = ocfs2_delete_inode, 142ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 143ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 144ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 145d550071cSSunil Mushran .show_options = ocfs2_show_options, 1469e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1479e33d69fSJan Kara .quota_write = ocfs2_quota_write, 148ccd979bdSMark Fasheh }; 149ccd979bdSMark Fasheh 150ccd979bdSMark Fasheh enum { 151ccd979bdSMark Fasheh Opt_barrier, 152ccd979bdSMark Fasheh Opt_err_panic, 153ccd979bdSMark Fasheh Opt_err_ro, 154ccd979bdSMark Fasheh Opt_intr, 155ccd979bdSMark Fasheh Opt_nointr, 156ccd979bdSMark Fasheh Opt_hb_none, 157ccd979bdSMark Fasheh Opt_hb_local, 158ccd979bdSMark Fasheh Opt_data_ordered, 159ccd979bdSMark Fasheh Opt_data_writeback, 1607f1a37e3STiger Yang Opt_atime_quantum, 161baf4661aSSunil Mushran Opt_slot, 162d147b3d6SMark Fasheh Opt_commit, 1632fbe8d1eSSunil Mushran Opt_localalloc, 16453fc622bSMark Fasheh Opt_localflocks, 165b61817e1SJoel Becker Opt_stack, 166cf1d6c76STiger Yang Opt_user_xattr, 167cf1d6c76STiger Yang Opt_nouser_xattr, 16812462f1dSJoel Becker Opt_inode64, 169a68979b8STiger Yang Opt_acl, 170a68979b8STiger Yang Opt_noacl, 17119ece546SJan Kara Opt_usrquota, 17219ece546SJan Kara Opt_grpquota, 173ccd979bdSMark Fasheh Opt_err, 174ccd979bdSMark Fasheh }; 175ccd979bdSMark Fasheh 176a447c093SSteven Whitehouse static const match_table_t tokens = { 177ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 178ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 179ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 180ccd979bdSMark Fasheh {Opt_intr, "intr"}, 181ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 182ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 183ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 184ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 185ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1867f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 187baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 188d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1892fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19053fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 191b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 192cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 193cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 19412462f1dSJoel Becker {Opt_inode64, "inode64"}, 195a68979b8STiger Yang {Opt_acl, "acl"}, 196a68979b8STiger Yang {Opt_noacl, "noacl"}, 19719ece546SJan Kara {Opt_usrquota, "usrquota"}, 19819ece546SJan Kara {Opt_grpquota, "grpquota"}, 199ccd979bdSMark Fasheh {Opt_err, NULL} 200ccd979bdSMark Fasheh }; 201ccd979bdSMark Fasheh 20250397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 20350397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 20450397507SSunil Mushran { 20550397507SSunil Mushran int out = 0; 20650397507SSunil Mushran int i; 20750397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 20850397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 20950397507SSunil Mushran 21050397507SSunil Mushran out += snprintf(buf + out, len - out, 21150397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 21250397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 21350397507SSunil Mushran osb->fs_generation, osb->vol_label); 21450397507SSunil Mushran 21550397507SSunil Mushran out += snprintf(buf + out, len - out, 21650397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 21750397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 21850397507SSunil Mushran 21950397507SSunil Mushran out += snprintf(buf + out, len - out, 22050397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 22150397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 22250397507SSunil Mushran 22350397507SSunil Mushran out += snprintf(buf + out, len - out, 22450397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 22550397507SSunil Mushran "ROcompat: 0x%X\n", 22650397507SSunil Mushran "Features", osb->s_feature_compat, 22750397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 22850397507SSunil Mushran 22950397507SSunil Mushran out += snprintf(buf + out, len - out, 23050397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 23150397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 23250397507SSunil Mushran 23350397507SSunil Mushran out += snprintf(buf + out, len - out, 23450397507SSunil Mushran "%10s => Stack: %s Name: %*s Version: %d.%d\n", 23550397507SSunil Mushran "Cluster", 23650397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 23750397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 23850397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 23950397507SSunil Mushran cconn->cc_version.pv_major, cconn->cc_version.pv_minor); 24050397507SSunil Mushran 24150397507SSunil Mushran spin_lock(&osb->dc_task_lock); 24250397507SSunil Mushran out += snprintf(buf + out, len - out, 24350397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 24450397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 24550397507SSunil Mushran task_pid_nr(osb->dc_task), osb->blocked_lock_count, 24650397507SSunil Mushran osb->dc_wake_sequence, osb->dc_work_sequence); 24750397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 24850397507SSunil Mushran 24950397507SSunil Mushran spin_lock(&osb->osb_lock); 25050397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 25150397507SSunil Mushran "Recovery", 25250397507SSunil Mushran (osb->recovery_thread_task ? 25350397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 25450397507SSunil Mushran if (rm->rm_used == 0) 25550397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 25650397507SSunil Mushran else { 25750397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 25850397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 25950397507SSunil Mushran rm->rm_entries[i]); 26050397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 26150397507SSunil Mushran } 26250397507SSunil Mushran spin_unlock(&osb->osb_lock); 26350397507SSunil Mushran 26450397507SSunil Mushran out += snprintf(buf + out, len - out, 26550397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 26650397507SSunil Mushran task_pid_nr(osb->commit_task), osb->osb_commit_interval, 26750397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 26850397507SSunil Mushran 26950397507SSunil Mushran out += snprintf(buf + out, len - out, 27050397507SSunil Mushran "%10s => State: %d NumTxns: %d TxnId: %lu\n", 27150397507SSunil Mushran "Journal", osb->journal->j_state, 27250397507SSunil Mushran atomic_read(&osb->journal->j_num_trans), 27350397507SSunil Mushran osb->journal->j_trans_id); 27450397507SSunil Mushran 27550397507SSunil Mushran out += snprintf(buf + out, len - out, 27650397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 27750397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 27850397507SSunil Mushran "Stats", 27950397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 28050397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 28150397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 28250397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 28350397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 28450397507SSunil Mushran 28550397507SSunil Mushran out += snprintf(buf + out, len - out, 28650397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 28750397507SSunil Mushran "Default: %u bits\n", 28850397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 28950397507SSunil Mushran (unsigned long long)osb->la_last_gd, 29050397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 29150397507SSunil Mushran 29250397507SSunil Mushran spin_lock(&osb->osb_lock); 29350397507SSunil Mushran out += snprintf(buf + out, len - out, 29450397507SSunil Mushran "%10s => Slot: %d NumStolen: %d\n", "Steal", 29550397507SSunil Mushran osb->s_inode_steal_slot, 29650397507SSunil Mushran atomic_read(&osb->s_num_inodes_stolen)); 29750397507SSunil Mushran spin_unlock(&osb->osb_lock); 29850397507SSunil Mushran 29950397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 30050397507SSunil Mushran "Slots", "Num", "RecoGen"); 30150397507SSunil Mushran 30250397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 30350397507SSunil Mushran out += snprintf(buf + out, len - out, 30450397507SSunil Mushran "%10s %c %3d %10d\n", 30550397507SSunil Mushran " ", 30650397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 30750397507SSunil Mushran i, osb->slot_recovery_generations[i]); 30850397507SSunil Mushran } 30950397507SSunil Mushran 31050397507SSunil Mushran return out; 31150397507SSunil Mushran } 31250397507SSunil Mushran 31350397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 31450397507SSunil Mushran { 31550397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 31650397507SSunil Mushran char *buf = NULL; 31750397507SSunil Mushran 31850397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 31950397507SSunil Mushran if (!buf) 32050397507SSunil Mushran goto bail; 32150397507SSunil Mushran 32250397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 32350397507SSunil Mushran 32450397507SSunil Mushran file->private_data = buf; 32550397507SSunil Mushran 32650397507SSunil Mushran return 0; 32750397507SSunil Mushran bail: 32850397507SSunil Mushran return -ENOMEM; 32950397507SSunil Mushran } 33050397507SSunil Mushran 33150397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 33250397507SSunil Mushran { 33350397507SSunil Mushran kfree(file->private_data); 33450397507SSunil Mushran return 0; 33550397507SSunil Mushran } 33650397507SSunil Mushran 33750397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 33850397507SSunil Mushran size_t nbytes, loff_t *ppos) 33950397507SSunil Mushran { 34050397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 34150397507SSunil Mushran i_size_read(file->f_mapping->host)); 34250397507SSunil Mushran } 34350397507SSunil Mushran #else 34450397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 34550397507SSunil Mushran { 34650397507SSunil Mushran return 0; 34750397507SSunil Mushran } 34850397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 34950397507SSunil Mushran { 35050397507SSunil Mushran return 0; 35150397507SSunil Mushran } 35250397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 35350397507SSunil Mushran size_t nbytes, loff_t *ppos) 35450397507SSunil Mushran { 35550397507SSunil Mushran return 0; 35650397507SSunil Mushran } 35750397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 35850397507SSunil Mushran 35950397507SSunil Mushran static struct file_operations ocfs2_osb_debug_fops = { 36050397507SSunil Mushran .open = ocfs2_osb_debug_open, 36150397507SSunil Mushran .release = ocfs2_debug_release, 36250397507SSunil Mushran .read = ocfs2_debug_read, 36350397507SSunil Mushran .llseek = generic_file_llseek, 36450397507SSunil Mushran }; 36550397507SSunil Mushran 366ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 367ccd979bdSMark Fasheh { 368bddb8eb3SDenis Cheng int status; 369ccd979bdSMark Fasheh tid_t target; 370ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 371ccd979bdSMark Fasheh 372ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 373ccd979bdSMark Fasheh return -EROFS; 374ccd979bdSMark Fasheh 375ccd979bdSMark Fasheh if (wait) { 376ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 377ccd979bdSMark Fasheh if (status < 0) 378ccd979bdSMark Fasheh mlog_errno(status); 379ccd979bdSMark Fasheh } else { 380ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 381ccd979bdSMark Fasheh } 382ccd979bdSMark Fasheh 3832b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 3842b4e30fbSJoel Becker &target)) { 385ccd979bdSMark Fasheh if (wait) 3862b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 387ccd979bdSMark Fasheh target); 388ccd979bdSMark Fasheh } 389ccd979bdSMark Fasheh return 0; 390ccd979bdSMark Fasheh } 391ccd979bdSMark Fasheh 3921a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 3931a224ad1SJan Kara { 3941a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 3951a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 3961a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 3971a224ad1SJan Kara return 0; 3981a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 3991a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4001a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4011a224ad1SJan Kara return 0; 4021a224ad1SJan Kara return 1; 4031a224ad1SJan Kara } 4041a224ad1SJan Kara 405ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 406ccd979bdSMark Fasheh { 407ccd979bdSMark Fasheh struct inode *new = NULL; 408ccd979bdSMark Fasheh int status = 0; 409ccd979bdSMark Fasheh int i; 410ccd979bdSMark Fasheh 411ccd979bdSMark Fasheh mlog_entry_void(); 412ccd979bdSMark Fasheh 4135fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 414ccd979bdSMark Fasheh if (IS_ERR(new)) { 415ccd979bdSMark Fasheh status = PTR_ERR(new); 416ccd979bdSMark Fasheh mlog_errno(status); 417ccd979bdSMark Fasheh goto bail; 418ccd979bdSMark Fasheh } 419ccd979bdSMark Fasheh osb->root_inode = new; 420ccd979bdSMark Fasheh 4215fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 422ccd979bdSMark Fasheh if (IS_ERR(new)) { 423ccd979bdSMark Fasheh status = PTR_ERR(new); 424ccd979bdSMark Fasheh mlog_errno(status); 425ccd979bdSMark Fasheh goto bail; 426ccd979bdSMark Fasheh } 427ccd979bdSMark Fasheh osb->sys_root_inode = new; 428ccd979bdSMark Fasheh 429ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 430ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4311a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4321a224ad1SJan Kara continue; 433ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 434ccd979bdSMark Fasheh if (!new) { 435ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 436ccd979bdSMark Fasheh status = -EINVAL; 437ccd979bdSMark Fasheh mlog_errno(status); 438ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 439ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 440ccd979bdSMark Fasheh "possibly corrupt fs?", i); 441ccd979bdSMark Fasheh goto bail; 442ccd979bdSMark Fasheh } 443ccd979bdSMark Fasheh // the array now has one ref, so drop this one 444ccd979bdSMark Fasheh iput(new); 445ccd979bdSMark Fasheh } 446ccd979bdSMark Fasheh 447ccd979bdSMark Fasheh bail: 448ccd979bdSMark Fasheh mlog_exit(status); 449ccd979bdSMark Fasheh return status; 450ccd979bdSMark Fasheh } 451ccd979bdSMark Fasheh 452ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 453ccd979bdSMark Fasheh { 454ccd979bdSMark Fasheh struct inode *new = NULL; 455ccd979bdSMark Fasheh int status = 0; 456ccd979bdSMark Fasheh int i; 457ccd979bdSMark Fasheh 458ccd979bdSMark Fasheh mlog_entry_void(); 459ccd979bdSMark Fasheh 460ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 461ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 462ccd979bdSMark Fasheh i++) { 4631a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4641a224ad1SJan Kara continue; 465ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 466ccd979bdSMark Fasheh if (!new) { 467ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 468ccd979bdSMark Fasheh status = -EINVAL; 469ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 470ccd979bdSMark Fasheh status, i, osb->slot_num); 471ccd979bdSMark Fasheh goto bail; 472ccd979bdSMark Fasheh } 473ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 474ccd979bdSMark Fasheh iput(new); 475ccd979bdSMark Fasheh } 476ccd979bdSMark Fasheh 477ccd979bdSMark Fasheh bail: 478ccd979bdSMark Fasheh mlog_exit(status); 479ccd979bdSMark Fasheh return status; 480ccd979bdSMark Fasheh } 481ccd979bdSMark Fasheh 482bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 483ccd979bdSMark Fasheh { 484bddb8eb3SDenis Cheng int i; 485ccd979bdSMark Fasheh struct inode *inode; 486ccd979bdSMark Fasheh 487ccd979bdSMark Fasheh mlog_entry_void(); 488ccd979bdSMark Fasheh 489ccd979bdSMark Fasheh for (i = 0; i < NUM_SYSTEM_INODES; i++) { 490ccd979bdSMark Fasheh inode = osb->system_inodes[i]; 491ccd979bdSMark Fasheh if (inode) { 492ccd979bdSMark Fasheh iput(inode); 493ccd979bdSMark Fasheh osb->system_inodes[i] = NULL; 494ccd979bdSMark Fasheh } 495ccd979bdSMark Fasheh } 496ccd979bdSMark Fasheh 497ccd979bdSMark Fasheh inode = osb->sys_root_inode; 498ccd979bdSMark Fasheh if (inode) { 499ccd979bdSMark Fasheh iput(inode); 500ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 501ccd979bdSMark Fasheh } 502ccd979bdSMark Fasheh 503ccd979bdSMark Fasheh inode = osb->root_inode; 504ccd979bdSMark Fasheh if (inode) { 505ccd979bdSMark Fasheh iput(inode); 506ccd979bdSMark Fasheh osb->root_inode = NULL; 507ccd979bdSMark Fasheh } 508ccd979bdSMark Fasheh 509bddb8eb3SDenis Cheng mlog_exit(0); 510ccd979bdSMark Fasheh } 511ccd979bdSMark Fasheh 512ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 513ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 514ccd979bdSMark Fasheh { 515ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 516ccd979bdSMark Fasheh 517e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 518ccd979bdSMark Fasheh if (!oi) 519ccd979bdSMark Fasheh return NULL; 520ccd979bdSMark Fasheh 5212b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 522ccd979bdSMark Fasheh return &oi->vfs_inode; 523ccd979bdSMark Fasheh } 524ccd979bdSMark Fasheh 525ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 526ccd979bdSMark Fasheh { 527ccd979bdSMark Fasheh kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 528ccd979bdSMark Fasheh } 529ccd979bdSMark Fasheh 5305a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5315a254031SMark Fasheh unsigned int cbits) 532ccd979bdSMark Fasheh { 5335a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5345a254031SMark Fasheh unsigned int trim = bytes; 5355a254031SMark Fasheh unsigned int bitshift = 32; 536ccd979bdSMark Fasheh 5375a254031SMark Fasheh /* 5385a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5395a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5405a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 541ccd979bdSMark Fasheh */ 542ccd979bdSMark Fasheh 543ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 544ccd979bdSMark Fasheh # if defined(CONFIG_LBD) 5452ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5465a254031SMark Fasheh /* 5475a254031SMark Fasheh * We might be limited by page cache size. 5485a254031SMark Fasheh */ 5495a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 5505a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 5515a254031SMark Fasheh trim = 1; 5525a254031SMark Fasheh /* 5535a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5545a254031SMark Fasheh * MAX_LFS_FILESIZE 5555a254031SMark Fasheh */ 5565a254031SMark Fasheh bitshift = 31; 5575a254031SMark Fasheh } 558ccd979bdSMark Fasheh # else 5595a254031SMark Fasheh /* 5605a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 5615a254031SMark Fasheh * that's what we expose to the VFS. 5625a254031SMark Fasheh */ 5635a254031SMark Fasheh bytes = 1 << bbits; 5645a254031SMark Fasheh trim = 1; 5655a254031SMark Fasheh bitshift = 31; 566ccd979bdSMark Fasheh # endif 567ccd979bdSMark Fasheh #endif 568ccd979bdSMark Fasheh 5695a254031SMark Fasheh /* 5705a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 5715a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 5725a254031SMark Fasheh * an extent start is at the max offset. 5735a254031SMark Fasheh */ 5745a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 575ccd979bdSMark Fasheh } 576ccd979bdSMark Fasheh 577ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 578ccd979bdSMark Fasheh { 579ccd979bdSMark Fasheh int incompat_features; 580ccd979bdSMark Fasheh int ret = 0; 581c0123adeSTiger Yang struct mount_options parsed_options; 582ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 583ccd979bdSMark Fasheh 584c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 1)) { 585ccd979bdSMark Fasheh ret = -EINVAL; 586ccd979bdSMark Fasheh goto out; 587ccd979bdSMark Fasheh } 588ccd979bdSMark Fasheh 589ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != 590c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 591ccd979bdSMark Fasheh ret = -EINVAL; 592ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 593ccd979bdSMark Fasheh goto out; 594ccd979bdSMark Fasheh } 595ccd979bdSMark Fasheh 596ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 597c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 598ccd979bdSMark Fasheh ret = -EINVAL; 599ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 600ccd979bdSMark Fasheh goto out; 601ccd979bdSMark Fasheh } 602ccd979bdSMark Fasheh 60312462f1dSJoel Becker /* Probably don't want this on remount; it might 60412462f1dSJoel Becker * mess with other nodes */ 60512462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 60612462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 60712462f1dSJoel Becker ret = -EINVAL; 60812462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 60912462f1dSJoel Becker goto out; 61012462f1dSJoel Becker } 61112462f1dSJoel Becker 612ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 613ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 61419ece546SJan Kara /* Disable quota accounting before remounting RO */ 61519ece546SJan Kara if (*flags & MS_RDONLY) { 61619ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 61719ece546SJan Kara if (ret < 0) 61819ece546SJan Kara goto out; 61919ece546SJan Kara } 620ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 621ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 622ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 623ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 624ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 625ccd979bdSMark Fasheh ret = -EROFS; 626ccd979bdSMark Fasheh goto unlock_osb; 627ccd979bdSMark Fasheh } 628ccd979bdSMark Fasheh 629ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 630ccd979bdSMark Fasheh mlog(0, "Going to ro mode.\n"); 631ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 632ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 633ccd979bdSMark Fasheh } else { 634ccd979bdSMark Fasheh mlog(0, "Making ro filesystem writeable.\n"); 635ccd979bdSMark Fasheh 636ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 637ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 638ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 639ccd979bdSMark Fasheh ret = -EROFS; 640ccd979bdSMark Fasheh goto unlock_osb; 641ccd979bdSMark Fasheh } 642ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 643ccd979bdSMark Fasheh if (incompat_features) { 644ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 645ccd979bdSMark Fasheh "of unsupported optional features " 646ccd979bdSMark Fasheh "(%x).\n", incompat_features); 647ccd979bdSMark Fasheh ret = -EINVAL; 648ccd979bdSMark Fasheh goto unlock_osb; 649ccd979bdSMark Fasheh } 650ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 651ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 652ccd979bdSMark Fasheh } 653ccd979bdSMark Fasheh unlock_osb: 654ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 65519ece546SJan Kara /* Enable quota accounting after remounting RW */ 65619ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 65719ece546SJan Kara if (sb_any_quota_suspended(sb)) 65819ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 65919ece546SJan Kara else 66019ece546SJan Kara ret = ocfs2_enable_quotas(osb); 66119ece546SJan Kara if (ret < 0) { 66219ece546SJan Kara /* Return back changes... */ 66319ece546SJan Kara spin_lock(&osb->osb_lock); 66419ece546SJan Kara sb->s_flags |= MS_RDONLY; 66519ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 66619ece546SJan Kara spin_unlock(&osb->osb_lock); 66719ece546SJan Kara goto out; 66819ece546SJan Kara } 66919ece546SJan Kara } 670ccd979bdSMark Fasheh } 671ccd979bdSMark Fasheh 672ccd979bdSMark Fasheh if (!ret) { 673ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 674ccd979bdSMark Fasheh * remount. */ 675a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 676a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 677c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 678c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 679c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 680d147b3d6SMark Fasheh if (parsed_options.commit_interval) 681d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 682e001e796SMark Fasheh 683e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 684e001e796SMark Fasheh ocfs2_set_journal_params(osb); 685ccd979bdSMark Fasheh } 686ccd979bdSMark Fasheh out: 687ccd979bdSMark Fasheh return ret; 688ccd979bdSMark Fasheh } 689ccd979bdSMark Fasheh 690ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 691ccd979bdSMark Fasheh struct buffer_head **bh, 692ccd979bdSMark Fasheh int *sector_size) 693ccd979bdSMark Fasheh { 694bddb8eb3SDenis Cheng int status, tmpstat; 695ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 696ccd979bdSMark Fasheh struct ocfs2_dinode *di; 697ccd979bdSMark Fasheh int blksize; 698ccd979bdSMark Fasheh 699ccd979bdSMark Fasheh *bh = NULL; 700ccd979bdSMark Fasheh 701ccd979bdSMark Fasheh /* may be > 512 */ 702e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 703ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 704ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 705ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 706ccd979bdSMark Fasheh status = -EINVAL; 707ccd979bdSMark Fasheh goto bail; 708ccd979bdSMark Fasheh } 709ccd979bdSMark Fasheh 710ccd979bdSMark Fasheh /* Can this really happen? */ 711ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 712ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 713ccd979bdSMark Fasheh 714ccd979bdSMark Fasheh /* check block zero for old format */ 715ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 716ccd979bdSMark Fasheh if (status < 0) { 717ccd979bdSMark Fasheh mlog_errno(status); 718ccd979bdSMark Fasheh goto bail; 719ccd979bdSMark Fasheh } 720ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 721ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 722ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 723ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 724ccd979bdSMark Fasheh status = -EINVAL; 725ccd979bdSMark Fasheh } 726ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 727ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 728ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 729ccd979bdSMark Fasheh hdr->signature); 730ccd979bdSMark Fasheh status = -EINVAL; 731ccd979bdSMark Fasheh } 732ccd979bdSMark Fasheh brelse(*bh); 733ccd979bdSMark Fasheh *bh = NULL; 734ccd979bdSMark Fasheh if (status < 0) { 735ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 736ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 737ccd979bdSMark Fasheh goto bail; 738ccd979bdSMark Fasheh } 739ccd979bdSMark Fasheh 740ccd979bdSMark Fasheh /* 741ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 742ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 743ccd979bdSMark Fasheh * the minimum clustersize. 744ccd979bdSMark Fasheh */ 745ccd979bdSMark Fasheh status = -EINVAL; 746ccd979bdSMark Fasheh for (blksize = *sector_size; 747ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 748ccd979bdSMark Fasheh blksize <<= 1) { 749ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 750ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 751ccd979bdSMark Fasheh blksize); 752ccd979bdSMark Fasheh if (tmpstat < 0) { 753ccd979bdSMark Fasheh status = tmpstat; 754ccd979bdSMark Fasheh mlog_errno(status); 755ccd979bdSMark Fasheh goto bail; 756ccd979bdSMark Fasheh } 757ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 758ccd979bdSMark Fasheh status = ocfs2_verify_volume(di, *bh, blksize); 759ccd979bdSMark Fasheh if (status >= 0) 760ccd979bdSMark Fasheh goto bail; 761ccd979bdSMark Fasheh brelse(*bh); 762ccd979bdSMark Fasheh *bh = NULL; 763ccd979bdSMark Fasheh if (status != -EAGAIN) 764ccd979bdSMark Fasheh break; 765ccd979bdSMark Fasheh } 766ccd979bdSMark Fasheh 767ccd979bdSMark Fasheh bail: 768ccd979bdSMark Fasheh return status; 769ccd979bdSMark Fasheh } 770ccd979bdSMark Fasheh 771c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 772c271c5c2SSunil Mushran { 773c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 774c271c5c2SSunil Mushran if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 775c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 776c271c5c2SSunil Mushran "mounted device.\n"); 777c271c5c2SSunil Mushran return -EINVAL; 778c271c5c2SSunil Mushran } 779c271c5c2SSunil Mushran } 780c271c5c2SSunil Mushran 781b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 782b61817e1SJoel Becker if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 783b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 784b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 785b61817e1SJoel Becker return -EINVAL; 786b61817e1SJoel Becker } 787b61817e1SJoel Becker } 788b61817e1SJoel Becker 789c271c5c2SSunil Mushran if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 790b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 791b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 792c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 793c271c5c2SSunil Mushran "a read-write clustered device.\n"); 794c271c5c2SSunil Mushran return -EINVAL; 795c271c5c2SSunil Mushran } 796c271c5c2SSunil Mushran } 797c271c5c2SSunil Mushran 798c271c5c2SSunil Mushran return 0; 799c271c5c2SSunil Mushran } 800c271c5c2SSunil Mushran 801b61817e1SJoel Becker /* 802b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 803b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 804b61817e1SJoel Becker * have passed a stack. 805b61817e1SJoel Becker */ 806b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 807b61817e1SJoel Becker struct mount_options *mopt) 808b61817e1SJoel Becker { 809b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 810b61817e1SJoel Becker mlog(ML_ERROR, 811b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 812b61817e1SJoel Becker "does not support it\n"); 813b61817e1SJoel Becker return -EINVAL; 814b61817e1SJoel Becker } 815b61817e1SJoel Becker 816b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 817b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 818b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 819b61817e1SJoel Becker mlog(ML_ERROR, 820b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 821b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 822b61817e1SJoel Becker mopt->cluster_stack, 823b61817e1SJoel Becker osb->osb_cluster_stack); 824b61817e1SJoel Becker return -EINVAL; 825b61817e1SJoel Becker } 826b61817e1SJoel Becker 827b61817e1SJoel Becker return 0; 828b61817e1SJoel Becker } 829b61817e1SJoel Becker 83019ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 83119ece546SJan Kara { 83219ece546SJan Kara int type; 83319ece546SJan Kara struct super_block *sb = osb->sb; 83419ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 83519ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 83619ece546SJan Kara int status = 0; 83719ece546SJan Kara 83819ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 83919ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 84019ece546SJan Kara continue; 84119ece546SJan Kara if (unsuspend) 84219ece546SJan Kara status = vfs_quota_enable( 84319ece546SJan Kara sb_dqopt(sb)->files[type], 84419ece546SJan Kara type, QFMT_OCFS2, 84519ece546SJan Kara DQUOT_SUSPENDED); 84619ece546SJan Kara else 84719ece546SJan Kara status = vfs_quota_disable(sb, type, 84819ece546SJan Kara DQUOT_SUSPENDED); 84919ece546SJan Kara if (status < 0) 85019ece546SJan Kara break; 85119ece546SJan Kara } 85219ece546SJan Kara if (status < 0) 85319ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 85419ece546SJan Kara "remount (error = %d).\n", status); 85519ece546SJan Kara return status; 85619ece546SJan Kara } 85719ece546SJan Kara 85819ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 85919ece546SJan Kara { 86019ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 86119ece546SJan Kara struct super_block *sb = osb->sb; 86219ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 86319ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 86419ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 86519ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 86619ece546SJan Kara int status; 86719ece546SJan Kara int type; 86819ece546SJan Kara 86919ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 87019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 87119ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 87219ece546SJan Kara continue; 87319ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 87419ece546SJan Kara osb->slot_num); 87519ece546SJan Kara if (!inode[type]) { 87619ece546SJan Kara status = -ENOENT; 87719ece546SJan Kara goto out_quota_off; 87819ece546SJan Kara } 87919ece546SJan Kara status = vfs_quota_enable(inode[type], type, QFMT_OCFS2, 88019ece546SJan Kara DQUOT_USAGE_ENABLED); 88119ece546SJan Kara if (status < 0) 88219ece546SJan Kara goto out_quota_off; 88319ece546SJan Kara } 88419ece546SJan Kara 88519ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 88619ece546SJan Kara iput(inode[type]); 88719ece546SJan Kara return 0; 88819ece546SJan Kara out_quota_off: 88919ece546SJan Kara ocfs2_disable_quotas(osb); 89019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 89119ece546SJan Kara iput(inode[type]); 89219ece546SJan Kara mlog_errno(status); 89319ece546SJan Kara return status; 89419ece546SJan Kara } 89519ece546SJan Kara 89619ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 89719ece546SJan Kara { 89819ece546SJan Kara int type; 89919ece546SJan Kara struct inode *inode; 90019ece546SJan Kara struct super_block *sb = osb->sb; 90119ece546SJan Kara 90219ece546SJan Kara /* We mostly ignore errors in this function because there's not much 90319ece546SJan Kara * we can do when we see them */ 90419ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 90519ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 90619ece546SJan Kara continue; 90719ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 90819ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 90919ece546SJan Kara * memory and so they will be automatically synced to global 91019ece546SJan Kara * quota files */ 91119ece546SJan Kara vfs_quota_disable(sb, type, DQUOT_USAGE_ENABLED | 91219ece546SJan Kara DQUOT_LIMITS_ENABLED); 91319ece546SJan Kara if (!inode) 91419ece546SJan Kara continue; 91519ece546SJan Kara iput(inode); 91619ece546SJan Kara } 91719ece546SJan Kara } 91819ece546SJan Kara 91919ece546SJan Kara /* Handle quota on quotactl */ 92019ece546SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id, 92119ece546SJan Kara char *path, int remount) 92219ece546SJan Kara { 92319ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 92419ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 92519ece546SJan Kara 92619ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 92719ece546SJan Kara return -EINVAL; 92819ece546SJan Kara 92919ece546SJan Kara if (remount) 93019ece546SJan Kara return 0; /* Just ignore it has been handled in 93119ece546SJan Kara * ocfs2_remount() */ 93219ece546SJan Kara return vfs_quota_enable(sb_dqopt(sb)->files[type], type, 93319ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 93419ece546SJan Kara } 93519ece546SJan Kara 93619ece546SJan Kara /* Handle quota off quotactl */ 93719ece546SJan Kara static int ocfs2_quota_off(struct super_block *sb, int type, int remount) 93819ece546SJan Kara { 93919ece546SJan Kara if (remount) 94019ece546SJan Kara return 0; /* Ignore now and handle later in 94119ece546SJan Kara * ocfs2_remount() */ 94219ece546SJan Kara return vfs_quota_disable(sb, type, DQUOT_LIMITS_ENABLED); 94319ece546SJan Kara } 94419ece546SJan Kara 94519ece546SJan Kara static struct quotactl_ops ocfs2_quotactl_ops = { 94619ece546SJan Kara .quota_on = ocfs2_quota_on, 94719ece546SJan Kara .quota_off = ocfs2_quota_off, 94819ece546SJan Kara .quota_sync = vfs_quota_sync, 94919ece546SJan Kara .get_info = vfs_get_dqinfo, 95019ece546SJan Kara .set_info = vfs_set_dqinfo, 95119ece546SJan Kara .get_dqblk = vfs_get_dqblk, 95219ece546SJan Kara .set_dqblk = vfs_set_dqblk, 95319ece546SJan Kara }; 95419ece546SJan Kara 955ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 956ccd979bdSMark Fasheh { 957ccd979bdSMark Fasheh struct dentry *root; 958ccd979bdSMark Fasheh int status, sector_size; 959c0123adeSTiger Yang struct mount_options parsed_options; 960ccd979bdSMark Fasheh struct inode *inode = NULL; 961ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 962ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 963c271c5c2SSunil Mushran char nodestr[8]; 964ccd979bdSMark Fasheh 965ccd979bdSMark Fasheh mlog_entry("%p, %p, %i", sb, data, silent); 966ccd979bdSMark Fasheh 967c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 968c271c5c2SSunil Mushran status = -EINVAL; 969c271c5c2SSunil Mushran goto read_super_error; 970c271c5c2SSunil Mushran } 971c271c5c2SSunil Mushran 972ccd979bdSMark Fasheh /* probe for superblock */ 973ccd979bdSMark Fasheh status = ocfs2_sb_probe(sb, &bh, §or_size); 974ccd979bdSMark Fasheh if (status < 0) { 975ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 976ccd979bdSMark Fasheh goto read_super_error; 977ccd979bdSMark Fasheh } 978ccd979bdSMark Fasheh 979ccd979bdSMark Fasheh status = ocfs2_initialize_super(sb, bh, sector_size); 980ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 981ccd979bdSMark Fasheh if (status < 0) { 982ccd979bdSMark Fasheh mlog_errno(status); 983ccd979bdSMark Fasheh goto read_super_error; 984ccd979bdSMark Fasheh } 985ccd979bdSMark Fasheh brelse(bh); 986ccd979bdSMark Fasheh bh = NULL; 987a68979b8STiger Yang 988a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 989a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 990a68979b8STiger Yang 991c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 992c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 993c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 994d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 9959c7af40bSMark Fasheh osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt); 9969c7af40bSMark Fasheh osb->local_alloc_bits = osb->local_alloc_default_bits; 99719ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_USRQUOTA && 99819ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 99919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 100019ece546SJan Kara status = -EINVAL; 100119ece546SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 100219ece546SJan Kara "filesystem does not have the feature enabled.\n"); 100319ece546SJan Kara goto read_super_error; 100419ece546SJan Kara } 100519ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_GRPQUOTA && 100619ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 100719ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 100819ece546SJan Kara status = -EINVAL; 100919ece546SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 101019ece546SJan Kara "filesystem does not have the feature enabled.\n"); 101119ece546SJan Kara goto read_super_error; 101219ece546SJan Kara } 1013ccd979bdSMark Fasheh 1014b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1015b61817e1SJoel Becker if (status) 1016b61817e1SJoel Becker goto read_super_error; 1017b61817e1SJoel Becker 1018ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1019ccd979bdSMark Fasheh 1020a68979b8STiger Yang sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 1021a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1022a68979b8STiger Yang 1023ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1024ccd979bdSMark Fasheh * heartbeat=none */ 1025ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1026ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1027ccd979bdSMark Fasheh status = -EACCES; 1028ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1029ccd979bdSMark Fasheh "mount was not specified.\n"); 1030ccd979bdSMark Fasheh goto read_super_error; 1031ccd979bdSMark Fasheh } 1032ccd979bdSMark Fasheh 1033ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1034ccd979bdSMark Fasheh * on a readonly device. */ 1035ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1036ccd979bdSMark Fasheh status = -EROFS; 1037ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1038ccd979bdSMark Fasheh "device.\n"); 1039ccd979bdSMark Fasheh goto read_super_error; 1040ccd979bdSMark Fasheh } 1041ccd979bdSMark Fasheh 1042ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1043ccd979bdSMark Fasheh if (status < 0) { 1044ccd979bdSMark Fasheh if (status == -EROFS) 1045ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1046ccd979bdSMark Fasheh "file system, but write access is " 1047ccd979bdSMark Fasheh "unavailable.\n"); 1048ccd979bdSMark Fasheh else 1049ccd979bdSMark Fasheh mlog_errno(status); 1050ccd979bdSMark Fasheh goto read_super_error; 1051ccd979bdSMark Fasheh } 1052ccd979bdSMark Fasheh 1053ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1054ccd979bdSMark Fasheh 1055ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 1056ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 1057ccd979bdSMark Fasheh "will be skipped.\n"); 1058ccd979bdSMark Fasheh } 1059ccd979bdSMark Fasheh 1060ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1061ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1062ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1063ccd979bdSMark Fasheh } 1064ccd979bdSMark Fasheh 1065c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1066c271c5c2SSunil Mushran if (status < 0) { 1067c271c5c2SSunil Mushran mlog_errno(status); 1068c271c5c2SSunil Mushran goto read_super_error; 1069c271c5c2SSunil Mushran } 1070c271c5c2SSunil Mushran 1071ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1072ccd979bdSMark Fasheh ocfs2_debugfs_root); 1073ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1074ccd979bdSMark Fasheh status = -EINVAL; 1075ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1076ccd979bdSMark Fasheh goto read_super_error; 1077ccd979bdSMark Fasheh } 1078ccd979bdSMark Fasheh 107950397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 108050397507SSunil Mushran osb->osb_debug_root, 108150397507SSunil Mushran osb, 108250397507SSunil Mushran &ocfs2_osb_debug_fops); 108350397507SSunil Mushran if (!osb->osb_ctxt) { 108450397507SSunil Mushran status = -EINVAL; 108550397507SSunil Mushran mlog_errno(status); 108650397507SSunil Mushran goto read_super_error; 108750397507SSunil Mushran } 108850397507SSunil Mushran 1089ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1090ccd979bdSMark Fasheh if (osb->root_inode) 1091ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 1092ccd979bdSMark Fasheh 1093ccd979bdSMark Fasheh if (status < 0) 1094ccd979bdSMark Fasheh goto read_super_error; 1095ccd979bdSMark Fasheh 1096ccd979bdSMark Fasheh if (!inode) { 1097ccd979bdSMark Fasheh status = -EIO; 1098ccd979bdSMark Fasheh mlog_errno(status); 1099ccd979bdSMark Fasheh goto read_super_error; 1100ccd979bdSMark Fasheh } 1101ccd979bdSMark Fasheh 1102ccd979bdSMark Fasheh root = d_alloc_root(inode); 1103ccd979bdSMark Fasheh if (!root) { 1104ccd979bdSMark Fasheh status = -ENOMEM; 1105ccd979bdSMark Fasheh mlog_errno(status); 1106ccd979bdSMark Fasheh goto read_super_error; 1107ccd979bdSMark Fasheh } 1108ccd979bdSMark Fasheh 1109ccd979bdSMark Fasheh sb->s_root = root; 1110ccd979bdSMark Fasheh 1111ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1112ccd979bdSMark Fasheh 1113c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1114c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1115c271c5c2SSunil Mushran else 111619fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1117c271c5c2SSunil Mushran 1118c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1119781ee3e2SSunil Mushran "with %s data mode.\n", 1120c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1121ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1122ccd979bdSMark Fasheh "ordered"); 1123ccd979bdSMark Fasheh 1124ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1125ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1126ccd979bdSMark Fasheh 112719ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 112819ece546SJan Kara * for cluster locks recovery now. That also means that truncation 112919ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 113019ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 113119ece546SJan Kara status = ocfs2_enable_quotas(osb); 113219ece546SJan Kara if (status < 0) { 113319ece546SJan Kara /* We have to err-out specially here because 113419ece546SJan Kara * s_root is already set */ 113519ece546SJan Kara mlog_errno(status); 113619ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 113719ece546SJan Kara wake_up(&osb->osb_mount_event); 113819ece546SJan Kara mlog_exit(status); 113919ece546SJan Kara return status; 114019ece546SJan Kara } 114119ece546SJan Kara } 114219ece546SJan Kara 114319ece546SJan Kara ocfs2_complete_quota_recovery(osb); 114419ece546SJan Kara 114519ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 114619ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 114719ece546SJan Kara wake_up(&osb->osb_mount_event); 114819ece546SJan Kara 1149ccd979bdSMark Fasheh mlog_exit(status); 1150ccd979bdSMark Fasheh return status; 1151ccd979bdSMark Fasheh 1152ccd979bdSMark Fasheh read_super_error: 1153ccd979bdSMark Fasheh brelse(bh); 1154ccd979bdSMark Fasheh 1155ccd979bdSMark Fasheh if (inode) 1156ccd979bdSMark Fasheh iput(inode); 1157ccd979bdSMark Fasheh 1158ccd979bdSMark Fasheh if (osb) { 1159ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1160ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1161ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1162ccd979bdSMark Fasheh } 1163ccd979bdSMark Fasheh 1164ccd979bdSMark Fasheh mlog_exit(status); 1165ccd979bdSMark Fasheh return status; 1166ccd979bdSMark Fasheh } 1167ccd979bdSMark Fasheh 1168454e2398SDavid Howells static int ocfs2_get_sb(struct file_system_type *fs_type, 1169ccd979bdSMark Fasheh int flags, 1170ccd979bdSMark Fasheh const char *dev_name, 1171454e2398SDavid Howells void *data, 1172454e2398SDavid Howells struct vfsmount *mnt) 1173ccd979bdSMark Fasheh { 1174454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, 1175454e2398SDavid Howells mnt); 1176ccd979bdSMark Fasheh } 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1179ccd979bdSMark Fasheh .owner = THIS_MODULE, 1180ccd979bdSMark Fasheh .name = "ocfs2", 1181ccd979bdSMark Fasheh .get_sb = ocfs2_get_sb, /* is this called when we mount 1182ccd979bdSMark Fasheh * the fs? */ 1183ccd979bdSMark Fasheh .kill_sb = kill_block_super, /* set to the generic one 1184ccd979bdSMark Fasheh * right now, but do we 1185ccd979bdSMark Fasheh * need to change that? */ 11861ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1187ccd979bdSMark Fasheh .next = NULL 1188ccd979bdSMark Fasheh }; 1189ccd979bdSMark Fasheh 1190ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1191ccd979bdSMark Fasheh char *options, 1192c0123adeSTiger Yang struct mount_options *mopt, 1193ccd979bdSMark Fasheh int is_remount) 1194ccd979bdSMark Fasheh { 1195ccd979bdSMark Fasheh int status; 1196ccd979bdSMark Fasheh char *p; 1197ccd979bdSMark Fasheh 1198ccd979bdSMark Fasheh mlog_entry("remount: %d, options: \"%s\"\n", is_remount, 1199ccd979bdSMark Fasheh options ? options : "(none)"); 1200ccd979bdSMark Fasheh 1201d147b3d6SMark Fasheh mopt->commit_interval = 0; 1202c0123adeSTiger Yang mopt->mount_opt = 0; 1203c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1204c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 12052fbe8d1eSSunil Mushran mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; 1206b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1207ccd979bdSMark Fasheh 1208ccd979bdSMark Fasheh if (!options) { 1209ccd979bdSMark Fasheh status = 1; 1210ccd979bdSMark Fasheh goto bail; 1211ccd979bdSMark Fasheh } 1212ccd979bdSMark Fasheh 1213ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1214ccd979bdSMark Fasheh int token, option; 1215ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1216ccd979bdSMark Fasheh 1217ccd979bdSMark Fasheh if (!*p) 1218ccd979bdSMark Fasheh continue; 1219ccd979bdSMark Fasheh 1220ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1221ccd979bdSMark Fasheh switch (token) { 1222ccd979bdSMark Fasheh case Opt_hb_local: 1223c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1224ccd979bdSMark Fasheh break; 1225ccd979bdSMark Fasheh case Opt_hb_none: 1226c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; 1227ccd979bdSMark Fasheh break; 1228ccd979bdSMark Fasheh case Opt_barrier: 1229ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1230ccd979bdSMark Fasheh status = 0; 1231ccd979bdSMark Fasheh goto bail; 1232ccd979bdSMark Fasheh } 1233ccd979bdSMark Fasheh if (option) 1234c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1235ccd979bdSMark Fasheh else 1236c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1237ccd979bdSMark Fasheh break; 1238ccd979bdSMark Fasheh case Opt_intr: 1239c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1240ccd979bdSMark Fasheh break; 1241ccd979bdSMark Fasheh case Opt_nointr: 1242c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1243ccd979bdSMark Fasheh break; 1244ccd979bdSMark Fasheh case Opt_err_panic: 1245c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1246ccd979bdSMark Fasheh break; 1247ccd979bdSMark Fasheh case Opt_err_ro: 1248c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1249ccd979bdSMark Fasheh break; 1250ccd979bdSMark Fasheh case Opt_data_ordered: 1251c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1252ccd979bdSMark Fasheh break; 1253ccd979bdSMark Fasheh case Opt_data_writeback: 1254c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1255ccd979bdSMark Fasheh break; 1256cf1d6c76STiger Yang case Opt_user_xattr: 1257cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1258cf1d6c76STiger Yang break; 1259cf1d6c76STiger Yang case Opt_nouser_xattr: 1260cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1261cf1d6c76STiger Yang break; 12627f1a37e3STiger Yang case Opt_atime_quantum: 12637f1a37e3STiger Yang if (match_int(&args[0], &option)) { 12647f1a37e3STiger Yang status = 0; 12657f1a37e3STiger Yang goto bail; 12667f1a37e3STiger Yang } 12677f1a37e3STiger Yang if (option >= 0) 1268c0123adeSTiger Yang mopt->atime_quantum = option; 12697f1a37e3STiger Yang break; 1270baf4661aSSunil Mushran case Opt_slot: 1271baf4661aSSunil Mushran option = 0; 1272baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1273baf4661aSSunil Mushran status = 0; 1274baf4661aSSunil Mushran goto bail; 1275baf4661aSSunil Mushran } 1276baf4661aSSunil Mushran if (option) 1277c0123adeSTiger Yang mopt->slot = (s16)option; 1278baf4661aSSunil Mushran break; 1279d147b3d6SMark Fasheh case Opt_commit: 1280d147b3d6SMark Fasheh option = 0; 1281d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1282d147b3d6SMark Fasheh status = 0; 1283d147b3d6SMark Fasheh goto bail; 1284d147b3d6SMark Fasheh } 1285d147b3d6SMark Fasheh if (option < 0) 1286d147b3d6SMark Fasheh return 0; 1287d147b3d6SMark Fasheh if (option == 0) 12882b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1289d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1290d147b3d6SMark Fasheh break; 12912fbe8d1eSSunil Mushran case Opt_localalloc: 12922fbe8d1eSSunil Mushran option = 0; 12932fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 12942fbe8d1eSSunil Mushran status = 0; 12952fbe8d1eSSunil Mushran goto bail; 12962fbe8d1eSSunil Mushran } 12972fbe8d1eSSunil Mushran if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8)) 12982fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 12992fbe8d1eSSunil Mushran break; 130053fc622bSMark Fasheh case Opt_localflocks: 130153fc622bSMark Fasheh /* 130253fc622bSMark Fasheh * Changing this during remount could race 130353fc622bSMark Fasheh * flock() requests, or "unbalance" existing 130453fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 130553fc622bSMark Fasheh * dropped in the other). If users care enough 130653fc622bSMark Fasheh * to flip locking modes during remount, we 130753fc622bSMark Fasheh * could add a "local" flag to individual 130853fc622bSMark Fasheh * flock structures for proper tracking of 130953fc622bSMark Fasheh * state. 131053fc622bSMark Fasheh */ 131153fc622bSMark Fasheh if (!is_remount) 131253fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 131353fc622bSMark Fasheh break; 1314b61817e1SJoel Becker case Opt_stack: 1315b61817e1SJoel Becker /* Check both that the option we were passed 1316b61817e1SJoel Becker * is of the right length and that it is a proper 1317b61817e1SJoel Becker * string of the right length. 1318b61817e1SJoel Becker */ 1319b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1320b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1321b61817e1SJoel Becker (strnlen(args[0].from, 1322b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1323b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1324b61817e1SJoel Becker mlog(ML_ERROR, 1325b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1326b61817e1SJoel Becker status = 0; 1327b61817e1SJoel Becker goto bail; 1328b61817e1SJoel Becker } 1329b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1330b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1331b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 1332b61817e1SJoel Becker break; 133312462f1dSJoel Becker case Opt_inode64: 133412462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 133512462f1dSJoel Becker break; 133619ece546SJan Kara case Opt_usrquota: 133719ece546SJan Kara /* We check only on remount, otherwise features 133819ece546SJan Kara * aren't yet initialized. */ 133919ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 134019ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 134119ece546SJan Kara mlog(ML_ERROR, "User quota requested but " 134219ece546SJan Kara "filesystem feature is not set\n"); 134319ece546SJan Kara status = 0; 134419ece546SJan Kara goto bail; 134519ece546SJan Kara } 134619ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 134719ece546SJan Kara break; 134819ece546SJan Kara case Opt_grpquota: 134919ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 135019ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 135119ece546SJan Kara mlog(ML_ERROR, "Group quota requested but " 135219ece546SJan Kara "filesystem feature is not set\n"); 135319ece546SJan Kara status = 0; 135419ece546SJan Kara goto bail; 135519ece546SJan Kara } 135619ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 135719ece546SJan Kara break; 1358a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1359a68979b8STiger Yang case Opt_acl: 1360a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 1361a68979b8STiger Yang break; 1362a68979b8STiger Yang case Opt_noacl: 1363a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1364a68979b8STiger Yang break; 1365a68979b8STiger Yang #else 1366a68979b8STiger Yang case Opt_acl: 1367a68979b8STiger Yang case Opt_noacl: 1368a68979b8STiger Yang printk(KERN_INFO "ocfs2 (no)acl options not supported\n"); 1369a68979b8STiger Yang break; 1370a68979b8STiger Yang #endif 1371ccd979bdSMark Fasheh default: 1372ccd979bdSMark Fasheh mlog(ML_ERROR, 1373ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1374ccd979bdSMark Fasheh "or missing value\n", p); 1375ccd979bdSMark Fasheh status = 0; 1376ccd979bdSMark Fasheh goto bail; 1377ccd979bdSMark Fasheh } 1378ccd979bdSMark Fasheh } 1379ccd979bdSMark Fasheh 1380ccd979bdSMark Fasheh status = 1; 1381ccd979bdSMark Fasheh 1382ccd979bdSMark Fasheh bail: 1383ccd979bdSMark Fasheh mlog_exit(status); 1384ccd979bdSMark Fasheh return status; 1385ccd979bdSMark Fasheh } 1386ccd979bdSMark Fasheh 1387d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1388d550071cSSunil Mushran { 1389d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1390d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1391ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1392d550071cSSunil Mushran 1393d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 1394d550071cSSunil Mushran seq_printf(s, ",_netdev,heartbeat=local"); 1395d550071cSSunil Mushran else 1396d550071cSSunil Mushran seq_printf(s, ",heartbeat=none"); 1397d550071cSSunil Mushran 1398d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1399d550071cSSunil Mushran seq_printf(s, ",nointr"); 1400d550071cSSunil Mushran 1401d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1402d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1403d550071cSSunil Mushran else 1404d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1405d550071cSSunil Mushran 1406d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1407d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1408d550071cSSunil Mushran 1409d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1410d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1411d550071cSSunil Mushran else 1412d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1413d550071cSSunil Mushran 1414d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1415d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1416d550071cSSunil Mushran 1417d550071cSSunil Mushran if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) 1418d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1419d550071cSSunil Mushran 1420d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1421d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1422d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1423d147b3d6SMark Fasheh 1424ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 1425ebcee4b5SMark Fasheh if (local_alloc_megs != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE) 1426ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 14272fbe8d1eSSunil Mushran 142853fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 142953fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 143053fc622bSMark Fasheh 1431b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1432b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1433b61817e1SJoel Becker osb->osb_cluster_stack); 143419ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 143519ece546SJan Kara seq_printf(s, ",usrquota"); 143619ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 143719ece546SJan Kara seq_printf(s, ",grpquota"); 1438b61817e1SJoel Becker 1439b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1440b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1441b0f73cfcSSunil Mushran else 1442b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1443b0f73cfcSSunil Mushran 144412462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 144512462f1dSJoel Becker seq_printf(s, ",inode64"); 144612462f1dSJoel Becker 1447a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1448a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1449a68979b8STiger Yang seq_printf(s, ",acl"); 1450a68979b8STiger Yang else 1451a68979b8STiger Yang seq_printf(s, ",noacl"); 1452a68979b8STiger Yang #endif 1453a68979b8STiger Yang 1454d550071cSSunil Mushran return 0; 1455d550071cSSunil Mushran } 1456d550071cSSunil Mushran 1457ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1458ccd979bdSMark Fasheh { 1459ccd979bdSMark Fasheh int status; 1460ccd979bdSMark Fasheh 1461ccd979bdSMark Fasheh mlog_entry_void(); 1462ccd979bdSMark Fasheh 1463ccd979bdSMark Fasheh ocfs2_print_version(); 1464ccd979bdSMark Fasheh 1465ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1466ccd979bdSMark Fasheh if (status < 0) { 1467ccd979bdSMark Fasheh mlog_errno(status); 1468ccd979bdSMark Fasheh goto leave; 1469ccd979bdSMark Fasheh } 1470ccd979bdSMark Fasheh 1471ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1472ccd979bdSMark Fasheh if (status < 0) { 1473ccd979bdSMark Fasheh mlog_errno(status); 1474ccd979bdSMark Fasheh goto leave; 1475ccd979bdSMark Fasheh } 1476ccd979bdSMark Fasheh 1477ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1478ccd979bdSMark Fasheh if (!ocfs2_wq) { 1479ccd979bdSMark Fasheh status = -ENOMEM; 1480ccd979bdSMark Fasheh goto leave; 1481ccd979bdSMark Fasheh } 1482ccd979bdSMark Fasheh 1483ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1484ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1485ccd979bdSMark Fasheh status = -EFAULT; 1486ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1487ccd979bdSMark Fasheh } 1488ccd979bdSMark Fasheh 1489171bf93cSMark Fasheh status = ocfs2_quota_setup(); 1490171bf93cSMark Fasheh if (status) 1491171bf93cSMark Fasheh goto leave; 1492171bf93cSMark Fasheh 149363e0c48aSJoel Becker ocfs2_set_locking_protocol(); 149463e0c48aSJoel Becker 14959e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1496ccd979bdSMark Fasheh leave: 1497ccd979bdSMark Fasheh if (status < 0) { 1498171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1499ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1500ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1501ccd979bdSMark Fasheh } 1502ccd979bdSMark Fasheh 1503ccd979bdSMark Fasheh mlog_exit(status); 1504ccd979bdSMark Fasheh 1505ccd979bdSMark Fasheh if (status >= 0) { 1506ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1507ccd979bdSMark Fasheh } else 1508ccd979bdSMark Fasheh return -1; 1509ccd979bdSMark Fasheh } 1510ccd979bdSMark Fasheh 1511ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1512ccd979bdSMark Fasheh { 1513ccd979bdSMark Fasheh mlog_entry_void(); 1514ccd979bdSMark Fasheh 1515171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1516171bf93cSMark Fasheh 1517ccd979bdSMark Fasheh if (ocfs2_wq) { 1518ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1519ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1520ccd979bdSMark Fasheh } 1521ccd979bdSMark Fasheh 15229e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 15239e33d69fSJan Kara 1524ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1525ccd979bdSMark Fasheh 1526ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1527ccd979bdSMark Fasheh 1528ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1529ccd979bdSMark Fasheh 1530ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1531ccd979bdSMark Fasheh 1532ccd979bdSMark Fasheh mlog_exit_void(); 1533ccd979bdSMark Fasheh } 1534ccd979bdSMark Fasheh 1535ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1536ccd979bdSMark Fasheh { 1537ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1538ccd979bdSMark Fasheh 15396cfd0148SChristoph Hellwig lock_kernel(); 15406cfd0148SChristoph Hellwig 1541ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1542ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1543ccd979bdSMark Fasheh 15446cfd0148SChristoph Hellwig unlock_kernel(); 15456cfd0148SChristoph Hellwig 1546ccd979bdSMark Fasheh mlog_exit_void(); 1547ccd979bdSMark Fasheh } 1548ccd979bdSMark Fasheh 1549726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1550ccd979bdSMark Fasheh { 1551ccd979bdSMark Fasheh struct ocfs2_super *osb; 1552ccd979bdSMark Fasheh u32 numbits, freebits; 1553ccd979bdSMark Fasheh int status; 1554ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1555ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1556ccd979bdSMark Fasheh struct inode *inode = NULL; 1557ccd979bdSMark Fasheh 1558726c3342SDavid Howells mlog_entry("(%p, %p)\n", dentry->d_sb, buf); 1559ccd979bdSMark Fasheh 1560726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1561ccd979bdSMark Fasheh 1562ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1563ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1564ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1565ccd979bdSMark Fasheh if (!inode) { 1566ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1567ccd979bdSMark Fasheh status = -EIO; 1568ccd979bdSMark Fasheh goto bail; 1569ccd979bdSMark Fasheh } 1570ccd979bdSMark Fasheh 1571e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1572ccd979bdSMark Fasheh if (status < 0) { 1573ccd979bdSMark Fasheh mlog_errno(status); 1574ccd979bdSMark Fasheh goto bail; 1575ccd979bdSMark Fasheh } 1576ccd979bdSMark Fasheh 1577ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1578ccd979bdSMark Fasheh 1579ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1580ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1581ccd979bdSMark Fasheh 1582ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1583726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1584ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1585ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1586ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1587ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1588ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1589ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1590ccd979bdSMark Fasheh buf->f_files = numbits; 1591ccd979bdSMark Fasheh buf->f_ffree = freebits; 1592ccd979bdSMark Fasheh 1593ccd979bdSMark Fasheh brelse(bh); 1594ccd979bdSMark Fasheh 1595e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1596ccd979bdSMark Fasheh status = 0; 1597ccd979bdSMark Fasheh bail: 1598ccd979bdSMark Fasheh if (inode) 1599ccd979bdSMark Fasheh iput(inode); 1600ccd979bdSMark Fasheh 1601ccd979bdSMark Fasheh mlog_exit(status); 1602ccd979bdSMark Fasheh 1603ccd979bdSMark Fasheh return status; 1604ccd979bdSMark Fasheh } 1605ccd979bdSMark Fasheh 160651cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1607ccd979bdSMark Fasheh { 1608ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1609ccd979bdSMark Fasheh 1610ccd979bdSMark Fasheh oi->ip_flags = 0; 1611ccd979bdSMark Fasheh oi->ip_open_count = 0; 1612ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 161383418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1614ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1615ccd979bdSMark Fasheh oi->ip_created_trans = 0; 1616ccd979bdSMark Fasheh oi->ip_last_trans = 0; 1617ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1618ccd979bdSMark Fasheh 1619ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1620cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1621251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1622ccd979bdSMark Fasheh 1623ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1624ccd979bdSMark Fasheh oi->ip_clusters = 0; 1625ccd979bdSMark Fasheh 1626ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1627e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 162850008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1629ccd979bdSMark Fasheh 1630ccd979bdSMark Fasheh ocfs2_metadata_cache_init(&oi->vfs_inode); 1631ccd979bdSMark Fasheh 1632ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1633ccd979bdSMark Fasheh } 1634ccd979bdSMark Fasheh 1635ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1636ccd979bdSMark Fasheh { 1637ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1638ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1639fffb60f9SPaul Jackson 0, 1640fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1641fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 164220c2df83SPaul Mundt ocfs2_inode_init_once); 16439e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 16449e33d69fSJan Kara sizeof(struct ocfs2_dquot), 16459e33d69fSJan Kara 0, 16469e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 16479e33d69fSJan Kara SLAB_MEM_SPREAD), 16489e33d69fSJan Kara NULL); 16499e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 16509e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 16519e33d69fSJan Kara 0, 16529e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 16539e33d69fSJan Kara NULL); 16549e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 16559e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 16569e33d69fSJan Kara if (ocfs2_inode_cachep) 16579e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 16589e33d69fSJan Kara if (ocfs2_dquot_cachep) 16599e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 16609e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 16619e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1662ccd979bdSMark Fasheh return -ENOMEM; 16639e33d69fSJan Kara } 1664ccd979bdSMark Fasheh 1665ccd979bdSMark Fasheh return 0; 1666ccd979bdSMark Fasheh } 1667ccd979bdSMark Fasheh 1668ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1669ccd979bdSMark Fasheh { 1670ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1671ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1672ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 16739e33d69fSJan Kara 16749e33d69fSJan Kara if (ocfs2_dquot_cachep) 16759e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 16769e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 16779e33d69fSJan Kara 16789e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 16799e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 16809e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1681ccd979bdSMark Fasheh } 1682ccd979bdSMark Fasheh 1683ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1684ccd979bdSMark Fasheh struct buffer_head **bh, 1685ccd979bdSMark Fasheh int block, 1686ccd979bdSMark Fasheh int sect_size) 1687ccd979bdSMark Fasheh { 1688ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1689ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1690ccd979bdSMark Fasheh return -EIO; 1691ccd979bdSMark Fasheh } 1692ccd979bdSMark Fasheh 1693ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1694ccd979bdSMark Fasheh if (!*bh) { 1695ccd979bdSMark Fasheh mlog_errno(-EIO); 1696ccd979bdSMark Fasheh return -EIO; 1697ccd979bdSMark Fasheh } 1698ccd979bdSMark Fasheh lock_buffer(*bh); 1699ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1700ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1701ccd979bdSMark Fasheh unlock_buffer(*bh); 1702ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1703ccd979bdSMark Fasheh wait_on_buffer(*bh); 170428d57d43Swengang wang if (!buffer_uptodate(*bh)) { 170528d57d43Swengang wang mlog_errno(-EIO); 170628d57d43Swengang wang brelse(*bh); 170728d57d43Swengang wang *bh = NULL; 170828d57d43Swengang wang return -EIO; 170928d57d43Swengang wang } 171028d57d43Swengang wang 1711ccd979bdSMark Fasheh return 0; 1712ccd979bdSMark Fasheh } 1713ccd979bdSMark Fasheh 1714ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1715ccd979bdSMark Fasheh { 1716ccd979bdSMark Fasheh int status = 0; 1717ccd979bdSMark Fasheh int unlock_super = 0; 1718ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1719ccd979bdSMark Fasheh 1720ccd979bdSMark Fasheh mlog_entry_void(); 1721ccd979bdSMark Fasheh 1722ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1723ccd979bdSMark Fasheh goto leave; 1724ccd979bdSMark Fasheh 1725ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1726ccd979bdSMark Fasheh if (status < 0) { 1727ccd979bdSMark Fasheh mlog_errno(status); 1728ccd979bdSMark Fasheh goto leave; 1729ccd979bdSMark Fasheh } 1730ccd979bdSMark Fasheh 1731ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1732ccd979bdSMark Fasheh if (status < 0) { 1733ccd979bdSMark Fasheh mlog_errno(status); 1734ccd979bdSMark Fasheh goto leave; 1735ccd979bdSMark Fasheh } 1736ccd979bdSMark Fasheh unlock_super = 1; 1737ccd979bdSMark Fasheh 1738ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1739ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1740ccd979bdSMark Fasheh if (status < 0) { 1741ccd979bdSMark Fasheh mlog_errno(status); 1742ccd979bdSMark Fasheh goto leave; 1743ccd979bdSMark Fasheh } 1744ccd979bdSMark Fasheh 1745ccd979bdSMark Fasheh /* load all node-local system inodes */ 1746ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1747ccd979bdSMark Fasheh if (status < 0) { 1748ccd979bdSMark Fasheh mlog_errno(status); 1749ccd979bdSMark Fasheh goto leave; 1750ccd979bdSMark Fasheh } 1751ccd979bdSMark Fasheh 1752ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1753ccd979bdSMark Fasheh if (status < 0) { 1754ccd979bdSMark Fasheh mlog_errno(status); 1755ccd979bdSMark Fasheh goto leave; 1756ccd979bdSMark Fasheh } 1757ccd979bdSMark Fasheh 1758ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 1759ccd979bdSMark Fasheh if (status < 0) { 1760ccd979bdSMark Fasheh mlog_errno(status); 1761ccd979bdSMark Fasheh goto leave; 1762ccd979bdSMark Fasheh } 1763ccd979bdSMark Fasheh 1764c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1765c271c5c2SSunil Mushran goto leave; 1766c271c5c2SSunil Mushran 1767ccd979bdSMark Fasheh leave: 1768ccd979bdSMark Fasheh if (unlock_super) 1769ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1770ccd979bdSMark Fasheh 1771ccd979bdSMark Fasheh mlog_exit(status); 1772ccd979bdSMark Fasheh return status; 1773ccd979bdSMark Fasheh } 1774ccd979bdSMark Fasheh 1775ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1776ccd979bdSMark Fasheh { 1777286eaa95SJoel Becker int tmp, hangup_needed = 0; 1778ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1779c271c5c2SSunil Mushran char nodestr[8]; 1780ccd979bdSMark Fasheh 1781ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1782ccd979bdSMark Fasheh 1783ccd979bdSMark Fasheh BUG_ON(!sb); 1784ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1785ccd979bdSMark Fasheh BUG_ON(!osb); 1786ccd979bdSMark Fasheh 178750397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 178850397507SSunil Mushran 178919ece546SJan Kara ocfs2_disable_quotas(osb); 179019ece546SJan Kara 1791ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1792ccd979bdSMark Fasheh 1793ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1794ccd979bdSMark Fasheh 1795553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1796553abd04SJoel Becker ocfs2_recovery_exit(osb); 1797ccd979bdSMark Fasheh 1798ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1799ccd979bdSMark Fasheh 1800ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1801ccd979bdSMark Fasheh 18024670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 18034670c46dSJoel Becker * all the steps which depended on that to complete. */ 18044670c46dSJoel Becker if (osb->cconn) { 1805ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1806ccd979bdSMark Fasheh if (tmp < 0) { 1807ccd979bdSMark Fasheh mlog_errno(tmp); 1808ccd979bdSMark Fasheh return; 1809ccd979bdSMark Fasheh } 181019b613d4SMark Fasheh } 1811ccd979bdSMark Fasheh 1812ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1813ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1814ccd979bdSMark Fasheh 18154670c46dSJoel Becker if (osb->cconn) 1816ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1817ccd979bdSMark Fasheh 1818ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1819ccd979bdSMark Fasheh 18206953b4c0SJoel Becker /* 18216953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 18226953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 18236953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 18246953b4c0SJoel Becker * heartbeat. Otherwise, do it. 18256953b4c0SJoel Becker */ 18266953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1827286eaa95SJoel Becker hangup_needed = 1; 1828286eaa95SJoel Becker 1829286eaa95SJoel Becker if (osb->cconn) 1830286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1831286eaa95SJoel Becker 1832286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1833286eaa95SJoel Becker 1834286eaa95SJoel Becker if (hangup_needed) 18356953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1836ccd979bdSMark Fasheh 1837ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1838ccd979bdSMark Fasheh 1839c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1840c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1841c271c5c2SSunil Mushran else 184219fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1843c271c5c2SSunil Mushran 1844c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1845c271c5c2SSunil Mushran osb->dev_str, nodestr); 1846ccd979bdSMark Fasheh 1847ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1848ccd979bdSMark Fasheh kfree(osb); 1849ccd979bdSMark Fasheh sb->s_dev = 0; 1850ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1851ccd979bdSMark Fasheh } 1852ccd979bdSMark Fasheh 1853ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1854ccd979bdSMark Fasheh unsigned uuid_bytes) 1855ccd979bdSMark Fasheh { 1856ccd979bdSMark Fasheh int i, ret; 1857ccd979bdSMark Fasheh char *ptr; 1858ccd979bdSMark Fasheh 1859ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1860ccd979bdSMark Fasheh 1861cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1862ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1863ccd979bdSMark Fasheh return -ENOMEM; 1864ccd979bdSMark Fasheh 1865ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1866ccd979bdSMark Fasheh /* print with null */ 1867ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1868ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1869ccd979bdSMark Fasheh return -EINVAL; 1870ccd979bdSMark Fasheh /* then only advance past the last char */ 1871ccd979bdSMark Fasheh ptr += 2; 1872ccd979bdSMark Fasheh } 1873ccd979bdSMark Fasheh 1874ccd979bdSMark Fasheh return 0; 1875ccd979bdSMark Fasheh } 1876ccd979bdSMark Fasheh 1877ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1878ccd979bdSMark Fasheh struct buffer_head *bh, 1879ccd979bdSMark Fasheh int sector_size) 1880ccd979bdSMark Fasheh { 1881bddb8eb3SDenis Cheng int status; 18825a254031SMark Fasheh int i, cbits, bbits; 18835a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 1884ccd979bdSMark Fasheh struct inode *inode = NULL; 1885ccd979bdSMark Fasheh struct ocfs2_journal *journal; 1886ccd979bdSMark Fasheh __le32 uuid_net_key; 1887ccd979bdSMark Fasheh struct ocfs2_super *osb; 1888ccd979bdSMark Fasheh 1889ccd979bdSMark Fasheh mlog_entry_void(); 1890ccd979bdSMark Fasheh 1891cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 1892ccd979bdSMark Fasheh if (!osb) { 1893ccd979bdSMark Fasheh status = -ENOMEM; 1894ccd979bdSMark Fasheh mlog_errno(status); 1895ccd979bdSMark Fasheh goto bail; 1896ccd979bdSMark Fasheh } 1897ccd979bdSMark Fasheh 1898ccd979bdSMark Fasheh sb->s_fs_info = osb; 1899ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 1900ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 190119ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 190219ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 1903cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 1904e0dceaf0SMark Fasheh sb->s_time_gran = 1; 1905ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 1906ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 19075a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 19085a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 19095a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 1910ccd979bdSMark Fasheh 19119b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 19129b7895efSMark Fasheh 19139b7895efSMark Fasheh for (i = 0; i < 3; i++) 19149b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 19159b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 19169b7895efSMark Fasheh 1917ccd979bdSMark Fasheh osb->sb = sb; 1918ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 1919ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 1920ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 1921ccd979bdSMark Fasheh 192234d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 192334d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 192434d024f8SMark Fasheh osb->dc_work_sequence = 0; 192534d024f8SMark Fasheh osb->dc_wake_sequence = 0; 1926ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 1927ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 1928ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 1929c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 19304d0ddb2cSTao Ma ocfs2_init_inode_steal_slot(osb); 1931ccd979bdSMark Fasheh 1932ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 1933ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 1934ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 1935ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 1936ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 1937ccd979bdSMark Fasheh 1938ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 1939ccd979bdSMark Fasheh 1940ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 1941ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1942ccd979bdSMark Fasheh 1943553abd04SJoel Becker status = ocfs2_recovery_init(osb); 1944553abd04SJoel Becker if (status) { 1945553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 1946553abd04SJoel Becker mlog_errno(status); 1947553abd04SJoel Becker goto bail; 1948553abd04SJoel Becker } 1949ccd979bdSMark Fasheh 1950ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 1951ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 1952ccd979bdSMark Fasheh 19537f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 19547f1a37e3STiger Yang 1955ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 1956ccd979bdSMark Fasheh 19578154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 19588154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 1959fdd77704STiger Yang 1960ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 1961ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 19629c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 1963ccd979bdSMark Fasheh 1964ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 1965ccd979bdSMark Fasheh 1966ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 1967ccd979bdSMark Fasheh if (!osb->vol_label) { 1968ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 1969ccd979bdSMark Fasheh status = -ENOMEM; 1970ccd979bdSMark Fasheh goto bail; 1971ccd979bdSMark Fasheh } 1972ccd979bdSMark Fasheh 1973ccd979bdSMark Fasheh osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 1974ccd979bdSMark Fasheh if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 1975ccd979bdSMark Fasheh mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 1976ccd979bdSMark Fasheh osb->max_slots); 1977ccd979bdSMark Fasheh status = -EINVAL; 1978ccd979bdSMark Fasheh goto bail; 1979ccd979bdSMark Fasheh } 1980781ee3e2SSunil Mushran mlog(0, "max_slots for this device: %u\n", osb->max_slots); 1981ccd979bdSMark Fasheh 1982539d8264SSunil Mushran osb->slot_recovery_generations = 1983539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 1984539d8264SSunil Mushran GFP_KERNEL); 1985539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 1986539d8264SSunil Mushran status = -ENOMEM; 1987539d8264SSunil Mushran mlog_errno(status); 1988539d8264SSunil Mushran goto bail; 1989539d8264SSunil Mushran } 1990539d8264SSunil Mushran 1991b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 1992b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 1993b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 1994b4df6ed8SMark Fasheh GFP_KERNEL); 1995b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 1996b4df6ed8SMark Fasheh status = -ENOMEM; 1997b4df6ed8SMark Fasheh mlog_errno(status); 1998b4df6ed8SMark Fasheh goto bail; 1999b4df6ed8SMark Fasheh } 2000b4df6ed8SMark Fasheh 2001ccd979bdSMark Fasheh osb->s_feature_compat = 2002ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2003ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2004ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2005ccd979bdSMark Fasheh osb->s_feature_incompat = 2006ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2007ccd979bdSMark Fasheh 2008ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2009ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2010ccd979bdSMark Fasheh "optional features (%x).\n", i); 2011ccd979bdSMark Fasheh status = -EINVAL; 2012ccd979bdSMark Fasheh goto bail; 2013ccd979bdSMark Fasheh } 2014ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2015ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2016ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2017ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2018ccd979bdSMark Fasheh status = -EINVAL; 2019ccd979bdSMark Fasheh goto bail; 2020ccd979bdSMark Fasheh } 2021ccd979bdSMark Fasheh 2022b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 2023b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2024b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2025b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2026b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2027b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2028b61817e1SJoel Becker mlog(ML_ERROR, 2029b61817e1SJoel Becker "couldn't mount because of an invalid " 2030b61817e1SJoel Becker "cluster stack label (%s) \n", 2031b61817e1SJoel Becker osb->osb_cluster_stack); 2032b61817e1SJoel Becker status = -EINVAL; 2033b61817e1SJoel Becker goto bail; 2034b61817e1SJoel Becker } 2035b61817e1SJoel Becker } else { 2036b61817e1SJoel Becker /* The empty string is identical with classic tools that 2037b61817e1SJoel Becker * don't know about s_cluster_info. */ 2038b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2039b61817e1SJoel Becker } 2040b61817e1SJoel Becker 2041ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2042ccd979bdSMark Fasheh 2043ccd979bdSMark Fasheh /* FIXME 2044ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2045ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2046ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2047ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2048ccd979bdSMark Fasheh * be my guest. 2049ccd979bdSMark Fasheh */ 2050ccd979bdSMark Fasheh /* initialize our journal structure */ 2051ccd979bdSMark Fasheh 2052cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2053ccd979bdSMark Fasheh if (!journal) { 2054ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2055ccd979bdSMark Fasheh status = -ENOMEM; 2056ccd979bdSMark Fasheh goto bail; 2057ccd979bdSMark Fasheh } 2058ccd979bdSMark Fasheh osb->journal = journal; 2059ccd979bdSMark Fasheh journal->j_osb = osb; 2060ccd979bdSMark Fasheh 2061ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2062ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2063ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2064ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2065ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2066ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2067c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2068ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2069ccd979bdSMark Fasheh 2070ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2071ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2072ea455f8aSJan Kara 2073ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2074ccd979bdSMark Fasheh osb->s_clustersize_bits = 2075ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2076ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2077ccd979bdSMark Fasheh mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); 2078ccd979bdSMark Fasheh 2079ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2080ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2081ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2082ccd979bdSMark Fasheh osb->s_clustersize); 2083ccd979bdSMark Fasheh status = -EINVAL; 2084ccd979bdSMark Fasheh goto bail; 2085ccd979bdSMark Fasheh } 2086ccd979bdSMark Fasheh 2087ccd979bdSMark Fasheh if (ocfs2_clusters_to_blocks(osb->sb, le32_to_cpu(di->i_clusters) - 1) 2088ccd979bdSMark Fasheh > (u32)~0UL) { 2089ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume might try to write to blocks beyond " 2090ccd979bdSMark Fasheh "what jbd can address in 32 bits.\n"); 2091ccd979bdSMark Fasheh status = -EINVAL; 2092ccd979bdSMark Fasheh goto bail; 2093ccd979bdSMark Fasheh } 2094ccd979bdSMark Fasheh 2095ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2096ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2097ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2098ccd979bdSMark Fasheh status = -ENOMEM; 2099ccd979bdSMark Fasheh goto bail; 2100ccd979bdSMark Fasheh } 2101ccd979bdSMark Fasheh 210278427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2103ccd979bdSMark Fasheh 2104ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2105ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2106ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2107ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2108ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2109ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2110ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2111cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 2112ccd979bdSMark Fasheh mlog(0, "vol_label: %s\n", osb->vol_label); 2113ccd979bdSMark Fasheh mlog(0, "uuid: %s\n", osb->uuid_str); 2114b0697053SMark Fasheh mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", 2115b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 2116b0697053SMark Fasheh (unsigned long long)osb->system_dir_blkno); 2117ccd979bdSMark Fasheh 2118ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2119ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2120ccd979bdSMark Fasheh status = -ENOMEM; 2121ccd979bdSMark Fasheh mlog_errno(status); 2122ccd979bdSMark Fasheh goto bail; 2123ccd979bdSMark Fasheh } 2124ccd979bdSMark Fasheh 2125ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2126ccd979bdSMark Fasheh 2127ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2128ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2129ccd979bdSMark Fasheh if (status < 0) { 2130ccd979bdSMark Fasheh mlog_errno(status); 2131ccd979bdSMark Fasheh goto bail; 2132ccd979bdSMark Fasheh } 2133ccd979bdSMark Fasheh 2134ccd979bdSMark Fasheh /* 2135ccd979bdSMark Fasheh * global bitmap 2136ccd979bdSMark Fasheh */ 2137ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2138ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2139ccd979bdSMark Fasheh if (!inode) { 2140ccd979bdSMark Fasheh status = -EINVAL; 2141ccd979bdSMark Fasheh mlog_errno(status); 2142ccd979bdSMark Fasheh goto bail; 2143ccd979bdSMark Fasheh } 2144ccd979bdSMark Fasheh 2145ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 2146ccd979bdSMark Fasheh iput(inode); 2147ccd979bdSMark Fasheh 2148e9d578a8STao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb) * 8; 2149ccd979bdSMark Fasheh 2150ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2151ccd979bdSMark Fasheh if (status < 0) { 2152ccd979bdSMark Fasheh mlog_errno(status); 2153ccd979bdSMark Fasheh goto bail; 2154ccd979bdSMark Fasheh } 2155ccd979bdSMark Fasheh 2156ccd979bdSMark Fasheh bail: 2157ccd979bdSMark Fasheh mlog_exit(status); 2158ccd979bdSMark Fasheh return status; 2159ccd979bdSMark Fasheh } 2160ccd979bdSMark Fasheh 2161ccd979bdSMark Fasheh /* 2162ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2163ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2164ccd979bdSMark Fasheh * 0 on success 2165ccd979bdSMark Fasheh */ 2166ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2167ccd979bdSMark Fasheh struct buffer_head *bh, 2168ccd979bdSMark Fasheh u32 blksz) 2169ccd979bdSMark Fasheh { 2170ccd979bdSMark Fasheh int status = -EAGAIN; 2171ccd979bdSMark Fasheh 2172ccd979bdSMark Fasheh mlog_entry_void(); 2173ccd979bdSMark Fasheh 2174ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2175ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2176d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2177d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2178d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2179d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2180d030cc97SJoel Becker bh->b_size, 2181d030cc97SJoel Becker &di->i_check); 2182d030cc97SJoel Becker if (status) 2183d030cc97SJoel Becker goto out; 2184d030cc97SJoel Becker } 2185ccd979bdSMark Fasheh status = -EINVAL; 2186ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2187ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2188ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2189ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2190ccd979bdSMark Fasheh blksz); 2191ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2192ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2193ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2194ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2195ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2196ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2197ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2198ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2199ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2200ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2201ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2202ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2203b0697053SMark Fasheh "found %llu, should be %llu\n", 22041ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2205b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2206ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2207ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2208ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2209ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2210ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2211ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2212ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2213ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2214ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2215ccd979bdSMark Fasheh mlog(ML_ERROR, 2216ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2217ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2218ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2219ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2220ccd979bdSMark Fasheh } else { 2221ccd979bdSMark Fasheh /* found it! */ 2222ccd979bdSMark Fasheh status = 0; 2223ccd979bdSMark Fasheh } 2224ccd979bdSMark Fasheh } 2225ccd979bdSMark Fasheh 2226d030cc97SJoel Becker out: 2227ccd979bdSMark Fasheh mlog_exit(status); 2228ccd979bdSMark Fasheh return status; 2229ccd979bdSMark Fasheh } 2230ccd979bdSMark Fasheh 2231ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2232ccd979bdSMark Fasheh { 2233bddb8eb3SDenis Cheng int status; 2234ccd979bdSMark Fasheh int dirty; 2235c271c5c2SSunil Mushran int local; 2236ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2237ccd979bdSMark Fasheh * recover 2238ccd979bdSMark Fasheh * ourselves. */ 2239ccd979bdSMark Fasheh 2240ccd979bdSMark Fasheh mlog_entry_void(); 2241ccd979bdSMark Fasheh 2242ccd979bdSMark Fasheh /* Init our journal object. */ 2243ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2244ccd979bdSMark Fasheh if (status < 0) { 2245ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2246ccd979bdSMark Fasheh goto finally; 2247ccd979bdSMark Fasheh } 2248ccd979bdSMark Fasheh 2249ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2250ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2251ccd979bdSMark Fasheh * dirty work for us :) */ 2252ccd979bdSMark Fasheh if (!dirty) { 2253ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2254ccd979bdSMark Fasheh if (status < 0) { 2255ccd979bdSMark Fasheh mlog_errno(status); 2256ccd979bdSMark Fasheh goto finally; 2257ccd979bdSMark Fasheh } 2258ccd979bdSMark Fasheh } else { 2259ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2260ccd979bdSMark Fasheh "recovering volume.\n"); 2261ccd979bdSMark Fasheh } 2262ccd979bdSMark Fasheh 2263c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2264c271c5c2SSunil Mushran 2265ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2266539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 226701af4820SWengang Wang if (status < 0) { 226801af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 226901af4820SWengang Wang goto finally; 227001af4820SWengang Wang } 2271ccd979bdSMark Fasheh 2272ccd979bdSMark Fasheh if (dirty) { 2273ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2274ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2275ccd979bdSMark Fasheh osb->slot_num, 2276ccd979bdSMark Fasheh &local_alloc); 2277ccd979bdSMark Fasheh if (status < 0) { 2278ccd979bdSMark Fasheh mlog_errno(status); 2279ccd979bdSMark Fasheh goto finally; 2280ccd979bdSMark Fasheh } 2281ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2282ccd979bdSMark Fasheh * ourselves as mounted. */ 2283ccd979bdSMark Fasheh } 2284ccd979bdSMark Fasheh 2285ccd979bdSMark Fasheh mlog(0, "Journal loaded.\n"); 2286ccd979bdSMark Fasheh 2287ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2288ccd979bdSMark Fasheh if (status < 0) { 2289ccd979bdSMark Fasheh mlog_errno(status); 2290ccd979bdSMark Fasheh goto finally; 2291ccd979bdSMark Fasheh } 2292ccd979bdSMark Fasheh 2293ccd979bdSMark Fasheh if (dirty) { 2294ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2295ccd979bdSMark Fasheh * rest of the volume. */ 2296ccd979bdSMark Fasheh osb->dirty = 1; 2297ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2298ccd979bdSMark Fasheh local_alloc = NULL; 2299ccd979bdSMark Fasheh } 2300ccd979bdSMark Fasheh 2301ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2302ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2303ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2304ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 23059140db04SSrinivas Eeda if (status < 0) { 23069140db04SSrinivas Eeda mlog_errno(status); 23079140db04SSrinivas Eeda goto finally; 23089140db04SSrinivas Eeda } 23099140db04SSrinivas Eeda 23109140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2311ccd979bdSMark Fasheh if (status < 0) 2312ccd979bdSMark Fasheh mlog_errno(status); 2313ccd979bdSMark Fasheh 2314ccd979bdSMark Fasheh finally: 2315ccd979bdSMark Fasheh if (local_alloc) 2316ccd979bdSMark Fasheh kfree(local_alloc); 2317ccd979bdSMark Fasheh 2318ccd979bdSMark Fasheh mlog_exit(status); 2319ccd979bdSMark Fasheh return status; 2320ccd979bdSMark Fasheh } 2321ccd979bdSMark Fasheh 2322ccd979bdSMark Fasheh /* 2323ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2324ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2325ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2326ccd979bdSMark Fasheh * initialized resources and fileobject. 2327ccd979bdSMark Fasheh */ 2328ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2329ccd979bdSMark Fasheh { 2330ccd979bdSMark Fasheh mlog_entry_void(); 2331ccd979bdSMark Fasheh 2332ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2333ccd979bdSMark Fasheh 23348e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2335ccd979bdSMark Fasheh 2336b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2337539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2338ccd979bdSMark Fasheh /* FIXME 2339ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2340ccd979bdSMark Fasheh * allocate osb->journal at the start of ocfs2_initalize_osb(), 2341ccd979bdSMark Fasheh * we free it here. 2342ccd979bdSMark Fasheh */ 2343ccd979bdSMark Fasheh kfree(osb->journal); 2344ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2345ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2346ccd979bdSMark Fasheh kfree(osb->uuid_str); 2347ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2348ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2349ccd979bdSMark Fasheh 2350ccd979bdSMark Fasheh mlog_exit_void(); 2351ccd979bdSMark Fasheh } 2352ccd979bdSMark Fasheh 2353ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2354ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2355ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2356ccd979bdSMark Fasheh { 2357ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2358ccd979bdSMark Fasheh 2359ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2360ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2361ccd979bdSMark Fasheh sb->s_id); 2362ccd979bdSMark Fasheh 2363ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2364ccd979bdSMark Fasheh 2365ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2366ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2367ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2368ccd979bdSMark Fasheh return; 2369ccd979bdSMark Fasheh 2370ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2371ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2372ccd979bdSMark Fasheh "system is unmounted.\n"); 2373ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2374ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2375ccd979bdSMark Fasheh } 2376ccd979bdSMark Fasheh 2377ccd979bdSMark Fasheh static char error_buf[1024]; 2378ccd979bdSMark Fasheh 2379ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2380ccd979bdSMark Fasheh const char *function, 2381ccd979bdSMark Fasheh const char *fmt, ...) 2382ccd979bdSMark Fasheh { 2383ccd979bdSMark Fasheh va_list args; 2384ccd979bdSMark Fasheh 2385ccd979bdSMark Fasheh va_start(args, fmt); 23864a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2387ccd979bdSMark Fasheh va_end(args); 2388ccd979bdSMark Fasheh 2389ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2390ccd979bdSMark Fasheh * function the error came from. */ 2391ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2392ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2393ccd979bdSMark Fasheh 2394ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2395ccd979bdSMark Fasheh } 2396ccd979bdSMark Fasheh 2397ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2398ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2399ccd979bdSMark Fasheh * etc. */ 2400ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2401ccd979bdSMark Fasheh const char *function, 2402ccd979bdSMark Fasheh const char *fmt, ...) 2403ccd979bdSMark Fasheh { 2404ccd979bdSMark Fasheh va_list args; 2405ccd979bdSMark Fasheh 2406ccd979bdSMark Fasheh va_start(args, fmt); 24074a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2408ccd979bdSMark Fasheh va_end(args); 2409ccd979bdSMark Fasheh 2410ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2411ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2412ccd979bdSMark Fasheh 2413ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2414ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2415ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2416ccd979bdSMark Fasheh * errors. 2417ccd979bdSMark Fasheh * 2418ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2419ccd979bdSMark Fasheh * that our slot needs recovery. */ 2420ccd979bdSMark Fasheh 2421ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2422ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2423ccd979bdSMark Fasheh * here. */ 2424ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2425ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2426ccd979bdSMark Fasheh } 2427ccd979bdSMark Fasheh 2428ccd979bdSMark Fasheh module_init(ocfs2_init); 2429ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2430