1ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 2ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 3ccd979bdSMark Fasheh * 4ccd979bdSMark Fasheh * super.c 5ccd979bdSMark Fasheh * 6ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 7ccd979bdSMark Fasheh * 8ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 9ccd979bdSMark Fasheh * 10ccd979bdSMark Fasheh * This program is free software; you can redistribute it and/or 11ccd979bdSMark Fasheh * modify it under the terms of the GNU General Public 12ccd979bdSMark Fasheh * License as published by the Free Software Foundation; either 13ccd979bdSMark Fasheh * version 2 of the License, or (at your option) any later version. 14ccd979bdSMark Fasheh * 15ccd979bdSMark Fasheh * This program is distributed in the hope that it will be useful, 16ccd979bdSMark Fasheh * but WITHOUT ANY WARRANTY; without even the implied warranty of 17ccd979bdSMark Fasheh * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18ccd979bdSMark Fasheh * General Public License for more details. 19ccd979bdSMark Fasheh * 20ccd979bdSMark Fasheh * You should have received a copy of the GNU General Public 21ccd979bdSMark Fasheh * License along with this program; if not, write to the 22ccd979bdSMark Fasheh * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23ccd979bdSMark Fasheh * Boston, MA 021110-1307, USA. 24ccd979bdSMark Fasheh */ 25ccd979bdSMark Fasheh 26ccd979bdSMark Fasheh #include <linux/module.h> 27ccd979bdSMark Fasheh #include <linux/fs.h> 28ccd979bdSMark Fasheh #include <linux/types.h> 29ccd979bdSMark Fasheh #include <linux/slab.h> 30ccd979bdSMark Fasheh #include <linux/highmem.h> 31ccd979bdSMark Fasheh #include <linux/init.h> 32ccd979bdSMark Fasheh #include <linux/random.h> 33ccd979bdSMark Fasheh #include <linux/statfs.h> 34ccd979bdSMark Fasheh #include <linux/moduleparam.h> 35ccd979bdSMark Fasheh #include <linux/blkdev.h> 36ccd979bdSMark Fasheh #include <linux/socket.h> 37ccd979bdSMark Fasheh #include <linux/inet.h> 38ccd979bdSMark Fasheh #include <linux/parser.h> 39ccd979bdSMark Fasheh #include <linux/crc32.h> 40ccd979bdSMark Fasheh #include <linux/debugfs.h> 41d550071cSSunil Mushran #include <linux/mount.h> 426953b4c0SJoel Becker #include <linux/seq_file.h> 4319ece546SJan Kara #include <linux/quotaops.h> 441cfd8bd0SDan Magenheimer #include <linux/cleancache.h> 45ccd979bdSMark Fasheh 4680a9a84dSWengang Wang #define CREATE_TRACE_POINTS 4780a9a84dSWengang Wang #include "ocfs2_trace.h" 4880a9a84dSWengang Wang 49ccd979bdSMark Fasheh #include <cluster/masklog.h> 50ccd979bdSMark Fasheh 51ccd979bdSMark Fasheh #include "ocfs2.h" 52ccd979bdSMark Fasheh 53ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 54ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 55ccd979bdSMark Fasheh 56ccd979bdSMark Fasheh #include "alloc.h" 57d030cc97SJoel Becker #include "blockcheck.h" 58ccd979bdSMark Fasheh #include "dlmglue.h" 59ccd979bdSMark Fasheh #include "export.h" 60ccd979bdSMark Fasheh #include "extent_map.h" 61ccd979bdSMark Fasheh #include "heartbeat.h" 62ccd979bdSMark Fasheh #include "inode.h" 63ccd979bdSMark Fasheh #include "journal.h" 64ccd979bdSMark Fasheh #include "localalloc.h" 65ccd979bdSMark Fasheh #include "namei.h" 66ccd979bdSMark Fasheh #include "slot_map.h" 67ccd979bdSMark Fasheh #include "super.h" 68ccd979bdSMark Fasheh #include "sysfile.h" 69ccd979bdSMark Fasheh #include "uptodate.h" 70ccd979bdSMark Fasheh #include "ver.h" 71cf1d6c76STiger Yang #include "xattr.h" 729e33d69fSJan Kara #include "quota.h" 73374a263eSTao Ma #include "refcounttree.h" 74b89c5428STiger Yang #include "suballoc.h" 75ccd979bdSMark Fasheh 76ccd979bdSMark Fasheh #include "buffer_head_io.h" 77ccd979bdSMark Fasheh 78e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 799e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 809e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 81ccd979bdSMark Fasheh 8225985edcSLucas De Marchi /* OCFS2 needs to schedule several different types of work which 83ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 84ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 85ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 86ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 87ccd979bdSMark Fasheh 88ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 89ccd979bdSMark Fasheh 90ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 91ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 92ccd979bdSMark Fasheh 93c0123adeSTiger Yang struct mount_options 94c0123adeSTiger Yang { 95d147b3d6SMark Fasheh unsigned long commit_interval; 96c0123adeSTiger Yang unsigned long mount_opt; 97c0123adeSTiger Yang unsigned int atime_quantum; 98c0123adeSTiger Yang signed short slot; 9973c8a800SMark Fasheh int localalloc_opt; 100d02f00ccSMark Fasheh unsigned int resv_level; 10183f92318SMark Fasheh int dir_resv_level; 102b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 103c0123adeSTiger Yang }; 104c0123adeSTiger Yang 105ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 106c0123adeSTiger Yang struct mount_options *mopt, 107baf4661aSSunil Mushran int is_remount); 1085297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 1095297aad8SJan Kara struct mount_options *options); 110d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 111ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 112ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 113ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 114ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 115ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 116ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 117ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 118ccd979bdSMark Fasheh 119726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 120ccd979bdSMark Fasheh 121ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 122ccd979bdSMark Fasheh 123ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 124ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 125bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 126ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 127ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 128ccd979bdSMark Fasheh struct buffer_head *bh, 12973be192bSJoel Becker u32 sectsize, 13073be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 131ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 132ccd979bdSMark Fasheh struct buffer_head *bh, 13373be192bSJoel Becker int sector_size, 13473be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 135ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 136ccd979bdSMark Fasheh struct buffer_head **bh, 137ccd979bdSMark Fasheh int block, 138ccd979bdSMark Fasheh int sect_size); 139ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 140ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 14119ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 14219ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 14319ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 144ccd979bdSMark Fasheh 145ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 146ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 147ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 148ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 149ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 150066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 151ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 152ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 153ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 154d550071cSSunil Mushran .show_options = ocfs2_show_options, 1559e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1569e33d69fSJan Kara .quota_write = ocfs2_quota_write, 157ccd979bdSMark Fasheh }; 158ccd979bdSMark Fasheh 159ccd979bdSMark Fasheh enum { 160ccd979bdSMark Fasheh Opt_barrier, 161ccd979bdSMark Fasheh Opt_err_panic, 162ccd979bdSMark Fasheh Opt_err_ro, 163ccd979bdSMark Fasheh Opt_intr, 164ccd979bdSMark Fasheh Opt_nointr, 165ccd979bdSMark Fasheh Opt_hb_none, 166ccd979bdSMark Fasheh Opt_hb_local, 1672c442719SSunil Mushran Opt_hb_global, 168ccd979bdSMark Fasheh Opt_data_ordered, 169ccd979bdSMark Fasheh Opt_data_writeback, 1707f1a37e3STiger Yang Opt_atime_quantum, 171baf4661aSSunil Mushran Opt_slot, 172d147b3d6SMark Fasheh Opt_commit, 1732fbe8d1eSSunil Mushran Opt_localalloc, 17453fc622bSMark Fasheh Opt_localflocks, 175b61817e1SJoel Becker Opt_stack, 176cf1d6c76STiger Yang Opt_user_xattr, 177cf1d6c76STiger Yang Opt_nouser_xattr, 17812462f1dSJoel Becker Opt_inode64, 179a68979b8STiger Yang Opt_acl, 180a68979b8STiger Yang Opt_noacl, 18119ece546SJan Kara Opt_usrquota, 18219ece546SJan Kara Opt_grpquota, 1837bdb0d18STristan Ye Opt_coherency_buffered, 1847bdb0d18STristan Ye Opt_coherency_full, 185d02f00ccSMark Fasheh Opt_resv_level, 18683f92318SMark Fasheh Opt_dir_resv_level, 187ccd979bdSMark Fasheh Opt_err, 188ccd979bdSMark Fasheh }; 189ccd979bdSMark Fasheh 190a447c093SSteven Whitehouse static const match_table_t tokens = { 191ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 192ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 193ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 194ccd979bdSMark Fasheh {Opt_intr, "intr"}, 195ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 196ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 197ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 1982c442719SSunil Mushran {Opt_hb_global, OCFS2_HB_GLOBAL}, 199ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 200ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 2017f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 202baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 203d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 2042fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 20553fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 206b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 207cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 208cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 20912462f1dSJoel Becker {Opt_inode64, "inode64"}, 210a68979b8STiger Yang {Opt_acl, "acl"}, 211a68979b8STiger Yang {Opt_noacl, "noacl"}, 21219ece546SJan Kara {Opt_usrquota, "usrquota"}, 21319ece546SJan Kara {Opt_grpquota, "grpquota"}, 2147bdb0d18STristan Ye {Opt_coherency_buffered, "coherency=buffered"}, 2157bdb0d18STristan Ye {Opt_coherency_full, "coherency=full"}, 216d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 21783f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 218ccd979bdSMark Fasheh {Opt_err, NULL} 219ccd979bdSMark Fasheh }; 220ccd979bdSMark Fasheh 22150397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 22250397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 22350397507SSunil Mushran { 22450397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 22550397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 226df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 227df152c24SSunil Mushran int i, out = 0; 22850397507SSunil Mushran 22950397507SSunil Mushran out += snprintf(buf + out, len - out, 23050397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 23150397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 23250397507SSunil Mushran osb->fs_generation, osb->vol_label); 23350397507SSunil Mushran 23450397507SSunil Mushran out += snprintf(buf + out, len - out, 23550397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 23650397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 23750397507SSunil Mushran 23850397507SSunil Mushran out += snprintf(buf + out, len - out, 23950397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 24050397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 24150397507SSunil Mushran 24250397507SSunil Mushran out += snprintf(buf + out, len - out, 24350397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 24450397507SSunil Mushran "ROcompat: 0x%X\n", 24550397507SSunil Mushran "Features", osb->s_feature_compat, 24650397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 24750397507SSunil Mushran 24850397507SSunil Mushran out += snprintf(buf + out, len - out, 24950397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 25050397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 25150397507SSunil Mushran 252c3d38840SSunil Mushran if (cconn) { 25350397507SSunil Mushran out += snprintf(buf + out, len - out, 254c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 255c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 25650397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 25750397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 25850397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 259c3d38840SSunil Mushran cconn->cc_version.pv_major, 260c3d38840SSunil Mushran cconn->cc_version.pv_minor); 261c3d38840SSunil Mushran } 26250397507SSunil Mushran 26350397507SSunil Mushran spin_lock(&osb->dc_task_lock); 26450397507SSunil Mushran out += snprintf(buf + out, len - out, 26550397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 26650397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 267c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 268c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 269c3d38840SSunil Mushran osb->dc_work_sequence); 27050397507SSunil Mushran spin_unlock(&osb->dc_task_lock); 27150397507SSunil Mushran 27250397507SSunil Mushran spin_lock(&osb->osb_lock); 27350397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 27450397507SSunil Mushran "Recovery", 27550397507SSunil Mushran (osb->recovery_thread_task ? 27650397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 27750397507SSunil Mushran if (rm->rm_used == 0) 27850397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 27950397507SSunil Mushran else { 28050397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 28150397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 28250397507SSunil Mushran rm->rm_entries[i]); 28350397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 28450397507SSunil Mushran } 28550397507SSunil Mushran spin_unlock(&osb->osb_lock); 28650397507SSunil Mushran 28750397507SSunil Mushran out += snprintf(buf + out, len - out, 28850397507SSunil Mushran "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", 289c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 290c3d38840SSunil Mushran osb->osb_commit_interval, 29150397507SSunil Mushran atomic_read(&osb->needs_checkpoint)); 29250397507SSunil Mushran 29350397507SSunil Mushran out += snprintf(buf + out, len - out, 294c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 29550397507SSunil Mushran "Journal", osb->journal->j_state, 296c3d38840SSunil Mushran osb->journal->j_trans_id, 297c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 29850397507SSunil Mushran 29950397507SSunil Mushran out += snprintf(buf + out, len - out, 30050397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 30150397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 30250397507SSunil Mushran "Stats", 30350397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 30450397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 30550397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 30650397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 30750397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 30850397507SSunil Mushran 30950397507SSunil Mushran out += snprintf(buf + out, len - out, 31050397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 31150397507SSunil Mushran "Default: %u bits\n", 31250397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 31350397507SSunil Mushran (unsigned long long)osb->la_last_gd, 31450397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 31550397507SSunil Mushran 31650397507SSunil Mushran spin_lock(&osb->osb_lock); 31750397507SSunil Mushran out += snprintf(buf + out, len - out, 318b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 319b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 32050397507SSunil Mushran osb->s_inode_steal_slot, 321b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 322b89c5428STiger Yang osb->s_meta_steal_slot, 323b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 32450397507SSunil Mushran spin_unlock(&osb->osb_lock); 32550397507SSunil Mushran 326df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 327df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 328df152c24SSunil Mushran os->os_count, os->os_seqno); 329df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 330df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 331df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 332df152c24SSunil Mushran else 333df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 334df152c24SSunil Mushran (get_seconds() - os->os_scantime.tv_sec)); 335df152c24SSunil Mushran 33650397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 33750397507SSunil Mushran "Slots", "Num", "RecoGen"); 33850397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 33950397507SSunil Mushran out += snprintf(buf + out, len - out, 34050397507SSunil Mushran "%10s %c %3d %10d\n", 34150397507SSunil Mushran " ", 34250397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 34350397507SSunil Mushran i, osb->slot_recovery_generations[i]); 34450397507SSunil Mushran } 34550397507SSunil Mushran 34650397507SSunil Mushran return out; 34750397507SSunil Mushran } 34850397507SSunil Mushran 34950397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 35050397507SSunil Mushran { 35150397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 35250397507SSunil Mushran char *buf = NULL; 35350397507SSunil Mushran 35450397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 35550397507SSunil Mushran if (!buf) 35650397507SSunil Mushran goto bail; 35750397507SSunil Mushran 35850397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 35950397507SSunil Mushran 36050397507SSunil Mushran file->private_data = buf; 36150397507SSunil Mushran 36250397507SSunil Mushran return 0; 36350397507SSunil Mushran bail: 36450397507SSunil Mushran return -ENOMEM; 36550397507SSunil Mushran } 36650397507SSunil Mushran 36750397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 36850397507SSunil Mushran { 36950397507SSunil Mushran kfree(file->private_data); 37050397507SSunil Mushran return 0; 37150397507SSunil Mushran } 37250397507SSunil Mushran 37350397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 37450397507SSunil Mushran size_t nbytes, loff_t *ppos) 37550397507SSunil Mushran { 37650397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 37750397507SSunil Mushran i_size_read(file->f_mapping->host)); 37850397507SSunil Mushran } 37950397507SSunil Mushran #else 38050397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 38150397507SSunil Mushran { 38250397507SSunil Mushran return 0; 38350397507SSunil Mushran } 38450397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 38550397507SSunil Mushran { 38650397507SSunil Mushran return 0; 38750397507SSunil Mushran } 38850397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 38950397507SSunil Mushran size_t nbytes, loff_t *ppos) 39050397507SSunil Mushran { 39150397507SSunil Mushran return 0; 39250397507SSunil Mushran } 39350397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 39450397507SSunil Mushran 395828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 39650397507SSunil Mushran .open = ocfs2_osb_debug_open, 39750397507SSunil Mushran .release = ocfs2_debug_release, 39850397507SSunil Mushran .read = ocfs2_debug_read, 39950397507SSunil Mushran .llseek = generic_file_llseek, 40050397507SSunil Mushran }; 40150397507SSunil Mushran 402ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 403ccd979bdSMark Fasheh { 404bddb8eb3SDenis Cheng int status; 405ccd979bdSMark Fasheh tid_t target; 406ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 407ccd979bdSMark Fasheh 408ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 409ccd979bdSMark Fasheh return -EROFS; 410ccd979bdSMark Fasheh 411ccd979bdSMark Fasheh if (wait) { 412ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 413ccd979bdSMark Fasheh if (status < 0) 414ccd979bdSMark Fasheh mlog_errno(status); 415ccd979bdSMark Fasheh } else { 416ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 417ccd979bdSMark Fasheh } 418ccd979bdSMark Fasheh 4192b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 4202b4e30fbSJoel Becker &target)) { 421ccd979bdSMark Fasheh if (wait) 4222b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 423ccd979bdSMark Fasheh target); 424ccd979bdSMark Fasheh } 425ccd979bdSMark Fasheh return 0; 426ccd979bdSMark Fasheh } 427ccd979bdSMark Fasheh 4281a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4291a224ad1SJan Kara { 4301a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4311a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4321a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4331a224ad1SJan Kara return 0; 4341a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4351a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4361a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4371a224ad1SJan Kara return 0; 4381a224ad1SJan Kara return 1; 4391a224ad1SJan Kara } 4401a224ad1SJan Kara 441ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 442ccd979bdSMark Fasheh { 443ccd979bdSMark Fasheh struct inode *new = NULL; 444ccd979bdSMark Fasheh int status = 0; 445ccd979bdSMark Fasheh int i; 446ccd979bdSMark Fasheh 4475fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 448ccd979bdSMark Fasheh if (IS_ERR(new)) { 449ccd979bdSMark Fasheh status = PTR_ERR(new); 450ccd979bdSMark Fasheh mlog_errno(status); 451ccd979bdSMark Fasheh goto bail; 452ccd979bdSMark Fasheh } 453ccd979bdSMark Fasheh osb->root_inode = new; 454ccd979bdSMark Fasheh 4555fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 456ccd979bdSMark Fasheh if (IS_ERR(new)) { 457ccd979bdSMark Fasheh status = PTR_ERR(new); 458ccd979bdSMark Fasheh mlog_errno(status); 459ccd979bdSMark Fasheh goto bail; 460ccd979bdSMark Fasheh } 461ccd979bdSMark Fasheh osb->sys_root_inode = new; 462ccd979bdSMark Fasheh 463ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 464ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4651a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4661a224ad1SJan Kara continue; 467ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 468ccd979bdSMark Fasheh if (!new) { 469ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 470ccd979bdSMark Fasheh status = -EINVAL; 471ccd979bdSMark Fasheh mlog_errno(status); 472ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 473ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 474ccd979bdSMark Fasheh "possibly corrupt fs?", i); 475ccd979bdSMark Fasheh goto bail; 476ccd979bdSMark Fasheh } 477ccd979bdSMark Fasheh // the array now has one ref, so drop this one 478ccd979bdSMark Fasheh iput(new); 479ccd979bdSMark Fasheh } 480ccd979bdSMark Fasheh 481ccd979bdSMark Fasheh bail: 482c1e8d35eSTao Ma if (status) 483c1e8d35eSTao Ma mlog_errno(status); 484ccd979bdSMark Fasheh return status; 485ccd979bdSMark Fasheh } 486ccd979bdSMark Fasheh 487ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 488ccd979bdSMark Fasheh { 489ccd979bdSMark Fasheh struct inode *new = NULL; 490ccd979bdSMark Fasheh int status = 0; 491ccd979bdSMark Fasheh int i; 492ccd979bdSMark Fasheh 493ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 494ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 495ccd979bdSMark Fasheh i++) { 4961a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4971a224ad1SJan Kara continue; 498ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 499ccd979bdSMark Fasheh if (!new) { 500ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 501ccd979bdSMark Fasheh status = -EINVAL; 502ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 503ccd979bdSMark Fasheh status, i, osb->slot_num); 504ccd979bdSMark Fasheh goto bail; 505ccd979bdSMark Fasheh } 506ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 507ccd979bdSMark Fasheh iput(new); 508ccd979bdSMark Fasheh } 509ccd979bdSMark Fasheh 510ccd979bdSMark Fasheh bail: 511c1e8d35eSTao Ma if (status) 512c1e8d35eSTao Ma mlog_errno(status); 513ccd979bdSMark Fasheh return status; 514ccd979bdSMark Fasheh } 515ccd979bdSMark Fasheh 516bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 517ccd979bdSMark Fasheh { 518bddb8eb3SDenis Cheng int i; 519ccd979bdSMark Fasheh struct inode *inode; 520ccd979bdSMark Fasheh 521b4d693fcSTao Ma for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { 522b4d693fcSTao Ma inode = osb->global_system_inodes[i]; 523ccd979bdSMark Fasheh if (inode) { 524ccd979bdSMark Fasheh iput(inode); 525b4d693fcSTao Ma osb->global_system_inodes[i] = NULL; 526ccd979bdSMark Fasheh } 527ccd979bdSMark Fasheh } 528ccd979bdSMark Fasheh 529ccd979bdSMark Fasheh inode = osb->sys_root_inode; 530ccd979bdSMark Fasheh if (inode) { 531ccd979bdSMark Fasheh iput(inode); 532ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 533ccd979bdSMark Fasheh } 534ccd979bdSMark Fasheh 535ccd979bdSMark Fasheh inode = osb->root_inode; 536ccd979bdSMark Fasheh if (inode) { 537ccd979bdSMark Fasheh iput(inode); 538ccd979bdSMark Fasheh osb->root_inode = NULL; 539ccd979bdSMark Fasheh } 540ccd979bdSMark Fasheh 541b4d693fcSTao Ma if (!osb->local_system_inodes) 542c1e8d35eSTao Ma return; 543b4d693fcSTao Ma 544b4d693fcSTao Ma for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { 545b4d693fcSTao Ma if (osb->local_system_inodes[i]) { 546b4d693fcSTao Ma iput(osb->local_system_inodes[i]); 547b4d693fcSTao Ma osb->local_system_inodes[i] = NULL; 548b4d693fcSTao Ma } 549b4d693fcSTao Ma } 550b4d693fcSTao Ma 551b4d693fcSTao Ma kfree(osb->local_system_inodes); 552b4d693fcSTao Ma osb->local_system_inodes = NULL; 553ccd979bdSMark Fasheh } 554ccd979bdSMark Fasheh 555ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 556ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 557ccd979bdSMark Fasheh { 558ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 559ccd979bdSMark Fasheh 560e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 561ccd979bdSMark Fasheh if (!oi) 562ccd979bdSMark Fasheh return NULL; 563ccd979bdSMark Fasheh 5642b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 565ccd979bdSMark Fasheh return &oi->vfs_inode; 566ccd979bdSMark Fasheh } 567ccd979bdSMark Fasheh 568fa0d7e3dSNick Piggin static void ocfs2_i_callback(struct rcu_head *head) 569fa0d7e3dSNick Piggin { 570fa0d7e3dSNick Piggin struct inode *inode = container_of(head, struct inode, i_rcu); 571fa0d7e3dSNick Piggin INIT_LIST_HEAD(&inode->i_dentry); 572fa0d7e3dSNick Piggin kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 573fa0d7e3dSNick Piggin } 574fa0d7e3dSNick Piggin 575ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 576ccd979bdSMark Fasheh { 577fa0d7e3dSNick Piggin call_rcu(&inode->i_rcu, ocfs2_i_callback); 578ccd979bdSMark Fasheh } 579ccd979bdSMark Fasheh 5805a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5815a254031SMark Fasheh unsigned int cbits) 582ccd979bdSMark Fasheh { 5835a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5845a254031SMark Fasheh unsigned int trim = bytes; 5855a254031SMark Fasheh unsigned int bitshift = 32; 586ccd979bdSMark Fasheh 5875a254031SMark Fasheh /* 5885a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5895a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5905a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 591ccd979bdSMark Fasheh */ 592ccd979bdSMark Fasheh 593ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 59490c699a9SBartlomiej Zolnierkiewicz # if defined(CONFIG_LBDAF) 5952ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5965a254031SMark Fasheh /* 5975a254031SMark Fasheh * We might be limited by page cache size. 5985a254031SMark Fasheh */ 5995a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 6005a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 6015a254031SMark Fasheh trim = 1; 6025a254031SMark Fasheh /* 6035a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 6045a254031SMark Fasheh * MAX_LFS_FILESIZE 6055a254031SMark Fasheh */ 6065a254031SMark Fasheh bitshift = 31; 6075a254031SMark Fasheh } 608ccd979bdSMark Fasheh # else 6095a254031SMark Fasheh /* 6105a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 6115a254031SMark Fasheh * that's what we expose to the VFS. 6125a254031SMark Fasheh */ 6135a254031SMark Fasheh bytes = 1 << bbits; 6145a254031SMark Fasheh trim = 1; 6155a254031SMark Fasheh bitshift = 31; 616ccd979bdSMark Fasheh # endif 617ccd979bdSMark Fasheh #endif 618ccd979bdSMark Fasheh 6195a254031SMark Fasheh /* 6205a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 6215a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 6225a254031SMark Fasheh * an extent start is at the max offset. 6235a254031SMark Fasheh */ 6245a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 625ccd979bdSMark Fasheh } 626ccd979bdSMark Fasheh 627ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 628ccd979bdSMark Fasheh { 629ccd979bdSMark Fasheh int incompat_features; 630ccd979bdSMark Fasheh int ret = 0; 631c0123adeSTiger Yang struct mount_options parsed_options; 632ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 6332c442719SSunil Mushran u32 tmp; 634ccd979bdSMark Fasheh 6355297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6365297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 637ccd979bdSMark Fasheh ret = -EINVAL; 638ccd979bdSMark Fasheh goto out; 639ccd979bdSMark Fasheh } 640ccd979bdSMark Fasheh 6412c442719SSunil Mushran tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | 6422c442719SSunil Mushran OCFS2_MOUNT_HB_NONE; 6432c442719SSunil Mushran if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 644ccd979bdSMark Fasheh ret = -EINVAL; 645ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 646ccd979bdSMark Fasheh goto out; 647ccd979bdSMark Fasheh } 648ccd979bdSMark Fasheh 649ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 650c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 651ccd979bdSMark Fasheh ret = -EINVAL; 652ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 653ccd979bdSMark Fasheh goto out; 654ccd979bdSMark Fasheh } 655ccd979bdSMark Fasheh 65612462f1dSJoel Becker /* Probably don't want this on remount; it might 65712462f1dSJoel Becker * mess with other nodes */ 65812462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 65912462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 66012462f1dSJoel Becker ret = -EINVAL; 66112462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 66212462f1dSJoel Becker goto out; 66312462f1dSJoel Becker } 66412462f1dSJoel Becker 665ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 666ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 66719ece546SJan Kara /* Disable quota accounting before remounting RO */ 66819ece546SJan Kara if (*flags & MS_RDONLY) { 66919ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 67019ece546SJan Kara if (ret < 0) 67119ece546SJan Kara goto out; 67219ece546SJan Kara } 673ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 674ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 675ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 676ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 677ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 678ccd979bdSMark Fasheh ret = -EROFS; 679ccd979bdSMark Fasheh goto unlock_osb; 680ccd979bdSMark Fasheh } 681ccd979bdSMark Fasheh 682ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 683ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 684ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 685ccd979bdSMark Fasheh } else { 686ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 687ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 688ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 689ccd979bdSMark Fasheh ret = -EROFS; 690ccd979bdSMark Fasheh goto unlock_osb; 691ccd979bdSMark Fasheh } 692ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 693ccd979bdSMark Fasheh if (incompat_features) { 694ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 695ccd979bdSMark Fasheh "of unsupported optional features " 696ccd979bdSMark Fasheh "(%x).\n", incompat_features); 697ccd979bdSMark Fasheh ret = -EINVAL; 698ccd979bdSMark Fasheh goto unlock_osb; 699ccd979bdSMark Fasheh } 700ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 701ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 702ccd979bdSMark Fasheh } 70332a42d39STao Ma trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); 704ccd979bdSMark Fasheh unlock_osb: 705ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 70619ece546SJan Kara /* Enable quota accounting after remounting RW */ 70719ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 70819ece546SJan Kara if (sb_any_quota_suspended(sb)) 70919ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 71019ece546SJan Kara else 71119ece546SJan Kara ret = ocfs2_enable_quotas(osb); 71219ece546SJan Kara if (ret < 0) { 71319ece546SJan Kara /* Return back changes... */ 71419ece546SJan Kara spin_lock(&osb->osb_lock); 71519ece546SJan Kara sb->s_flags |= MS_RDONLY; 71619ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 71719ece546SJan Kara spin_unlock(&osb->osb_lock); 71819ece546SJan Kara goto out; 71919ece546SJan Kara } 72019ece546SJan Kara } 721ccd979bdSMark Fasheh } 722ccd979bdSMark Fasheh 723ccd979bdSMark Fasheh if (!ret) { 724ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 725ccd979bdSMark Fasheh * remount. */ 726c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 727c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 728c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 729d147b3d6SMark Fasheh if (parsed_options.commit_interval) 730d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 731e001e796SMark Fasheh 732e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 733e001e796SMark Fasheh ocfs2_set_journal_params(osb); 73457b09bb5SJan Kara 73557b09bb5SJan Kara sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 73657b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 73757b09bb5SJan Kara MS_POSIXACL : 0); 738ccd979bdSMark Fasheh } 739ccd979bdSMark Fasheh out: 740ccd979bdSMark Fasheh return ret; 741ccd979bdSMark Fasheh } 742ccd979bdSMark Fasheh 743ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 744ccd979bdSMark Fasheh struct buffer_head **bh, 74573be192bSJoel Becker int *sector_size, 74673be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 747ccd979bdSMark Fasheh { 748bddb8eb3SDenis Cheng int status, tmpstat; 749ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 750ccd979bdSMark Fasheh struct ocfs2_dinode *di; 751ccd979bdSMark Fasheh int blksize; 752ccd979bdSMark Fasheh 753ccd979bdSMark Fasheh *bh = NULL; 754ccd979bdSMark Fasheh 755ccd979bdSMark Fasheh /* may be > 512 */ 756e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 757ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 758ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 759ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 760ccd979bdSMark Fasheh status = -EINVAL; 761ccd979bdSMark Fasheh goto bail; 762ccd979bdSMark Fasheh } 763ccd979bdSMark Fasheh 764ccd979bdSMark Fasheh /* Can this really happen? */ 765ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 766ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 767ccd979bdSMark Fasheh 768ccd979bdSMark Fasheh /* check block zero for old format */ 769ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 770ccd979bdSMark Fasheh if (status < 0) { 771ccd979bdSMark Fasheh mlog_errno(status); 772ccd979bdSMark Fasheh goto bail; 773ccd979bdSMark Fasheh } 774ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 775ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 776ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 777ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 778ccd979bdSMark Fasheh status = -EINVAL; 779ccd979bdSMark Fasheh } 780ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 781ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 782ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 783ccd979bdSMark Fasheh hdr->signature); 784ccd979bdSMark Fasheh status = -EINVAL; 785ccd979bdSMark Fasheh } 786ccd979bdSMark Fasheh brelse(*bh); 787ccd979bdSMark Fasheh *bh = NULL; 788ccd979bdSMark Fasheh if (status < 0) { 789ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 790ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 791ccd979bdSMark Fasheh goto bail; 792ccd979bdSMark Fasheh } 793ccd979bdSMark Fasheh 794ccd979bdSMark Fasheh /* 795ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 796ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 797ccd979bdSMark Fasheh * the minimum clustersize. 798ccd979bdSMark Fasheh */ 799ccd979bdSMark Fasheh status = -EINVAL; 800ccd979bdSMark Fasheh for (blksize = *sector_size; 801ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 802ccd979bdSMark Fasheh blksize <<= 1) { 803ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 804ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 805ccd979bdSMark Fasheh blksize); 806ccd979bdSMark Fasheh if (tmpstat < 0) { 807ccd979bdSMark Fasheh status = tmpstat; 808ccd979bdSMark Fasheh mlog_errno(status); 809fb5cbe9eSJoel Becker break; 810ccd979bdSMark Fasheh } 811ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 81273be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 8131c1d9793SJan Kara spin_lock_init(&stats->b_lock); 814fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 815fb5cbe9eSJoel Becker if (tmpstat < 0) { 816ccd979bdSMark Fasheh brelse(*bh); 817ccd979bdSMark Fasheh *bh = NULL; 818fb5cbe9eSJoel Becker } 819fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 820fb5cbe9eSJoel Becker status = tmpstat; 821ccd979bdSMark Fasheh break; 822ccd979bdSMark Fasheh } 823fb5cbe9eSJoel Becker } 824ccd979bdSMark Fasheh 825ccd979bdSMark Fasheh bail: 826ccd979bdSMark Fasheh return status; 827ccd979bdSMark Fasheh } 828ccd979bdSMark Fasheh 829c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 830c271c5c2SSunil Mushran { 8312c442719SSunil Mushran u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; 8322c442719SSunil Mushran 8332c442719SSunil Mushran if (osb->s_mount_opt & hb_enabled) { 834c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 835c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 836c271c5c2SSunil Mushran "mounted device.\n"); 837c271c5c2SSunil Mushran return -EINVAL; 838c271c5c2SSunil Mushran } 839b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 840b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 841b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 842b61817e1SJoel Becker return -EINVAL; 843b61817e1SJoel Becker } 8442c442719SSunil Mushran if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && 8452c442719SSunil Mushran !ocfs2_cluster_o2cb_global_heartbeat(osb)) || 8462c442719SSunil Mushran ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && 8472c442719SSunil Mushran ocfs2_cluster_o2cb_global_heartbeat(osb))) { 8482c442719SSunil Mushran mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); 8492c442719SSunil Mushran return -EINVAL; 8502c442719SSunil Mushran } 851b61817e1SJoel Becker } 852b61817e1SJoel Becker 8532c442719SSunil Mushran if (!(osb->s_mount_opt & hb_enabled)) { 854b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 855b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 856c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 857c271c5c2SSunil Mushran "a read-write clustered device.\n"); 858c271c5c2SSunil Mushran return -EINVAL; 859c271c5c2SSunil Mushran } 860c271c5c2SSunil Mushran } 861c271c5c2SSunil Mushran 862c271c5c2SSunil Mushran return 0; 863c271c5c2SSunil Mushran } 864c271c5c2SSunil Mushran 865b61817e1SJoel Becker /* 866b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 867b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 868b61817e1SJoel Becker * have passed a stack. 869b61817e1SJoel Becker */ 870b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 871b61817e1SJoel Becker struct mount_options *mopt) 872b61817e1SJoel Becker { 873b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 874b61817e1SJoel Becker mlog(ML_ERROR, 875b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 876b61817e1SJoel Becker "does not support it\n"); 877b61817e1SJoel Becker return -EINVAL; 878b61817e1SJoel Becker } 879b61817e1SJoel Becker 880b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 881b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 882b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 883b61817e1SJoel Becker mlog(ML_ERROR, 884b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 885b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 886b61817e1SJoel Becker mopt->cluster_stack, 887b61817e1SJoel Becker osb->osb_cluster_stack); 888b61817e1SJoel Becker return -EINVAL; 889b61817e1SJoel Becker } 890b61817e1SJoel Becker 891b61817e1SJoel Becker return 0; 892b61817e1SJoel Becker } 893b61817e1SJoel Becker 89419ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 89519ece546SJan Kara { 89619ece546SJan Kara int type; 89719ece546SJan Kara struct super_block *sb = osb->sb; 89819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 89919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 90019ece546SJan Kara int status = 0; 90119ece546SJan Kara 90219ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 90319ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 90419ece546SJan Kara continue; 90519ece546SJan Kara if (unsuspend) 9060f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 907eea7feb0SJan Kara else { 908eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 909eea7feb0SJan Kara 910eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 911eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 912eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 9130f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 914eea7feb0SJan Kara } 91519ece546SJan Kara if (status < 0) 91619ece546SJan Kara break; 91719ece546SJan Kara } 91819ece546SJan Kara if (status < 0) 91919ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 92019ece546SJan Kara "remount (error = %d).\n", status); 92119ece546SJan Kara return status; 92219ece546SJan Kara } 92319ece546SJan Kara 92419ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 92519ece546SJan Kara { 92619ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 92719ece546SJan Kara struct super_block *sb = osb->sb; 92819ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 92919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 93019ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 93119ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 93219ece546SJan Kara int status; 93319ece546SJan Kara int type; 93419ece546SJan Kara 93519ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 93619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 93719ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 93819ece546SJan Kara continue; 93919ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 94019ece546SJan Kara osb->slot_num); 94119ece546SJan Kara if (!inode[type]) { 94219ece546SJan Kara status = -ENOENT; 94319ece546SJan Kara goto out_quota_off; 94419ece546SJan Kara } 945287a8095SChristoph Hellwig status = dquot_enable(inode[type], type, QFMT_OCFS2, 94619ece546SJan Kara DQUOT_USAGE_ENABLED); 94719ece546SJan Kara if (status < 0) 94819ece546SJan Kara goto out_quota_off; 94919ece546SJan Kara } 95019ece546SJan Kara 95119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 95219ece546SJan Kara iput(inode[type]); 95319ece546SJan Kara return 0; 95419ece546SJan Kara out_quota_off: 95519ece546SJan Kara ocfs2_disable_quotas(osb); 95619ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 95719ece546SJan Kara iput(inode[type]); 95819ece546SJan Kara mlog_errno(status); 95919ece546SJan Kara return status; 96019ece546SJan Kara } 96119ece546SJan Kara 96219ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 96319ece546SJan Kara { 96419ece546SJan Kara int type; 96519ece546SJan Kara struct inode *inode; 96619ece546SJan Kara struct super_block *sb = osb->sb; 967c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 96819ece546SJan Kara 96919ece546SJan Kara /* We mostly ignore errors in this function because there's not much 97019ece546SJan Kara * we can do when we see them */ 97119ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 97219ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 97319ece546SJan Kara continue; 974c06bcbfaSJan Kara /* Cancel periodic syncing before we grab dqonoff_mutex */ 975c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 976c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 97719ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 97819ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 97919ece546SJan Kara * memory and so they will be automatically synced to global 98019ece546SJan Kara * quota files */ 9810f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 98219ece546SJan Kara DQUOT_LIMITS_ENABLED); 98319ece546SJan Kara if (!inode) 98419ece546SJan Kara continue; 98519ece546SJan Kara iput(inode); 98619ece546SJan Kara } 98719ece546SJan Kara } 98819ece546SJan Kara 98919ece546SJan Kara /* Handle quota on quotactl */ 990f00c9e44SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id) 99119ece546SJan Kara { 99219ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 99319ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 99419ece546SJan Kara 99519ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 99619ece546SJan Kara return -EINVAL; 99719ece546SJan Kara 998287a8095SChristoph Hellwig return dquot_enable(sb_dqopt(sb)->files[type], type, 99919ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 100019ece546SJan Kara } 100119ece546SJan Kara 100219ece546SJan Kara /* Handle quota off quotactl */ 1003307ae18aSChristoph Hellwig static int ocfs2_quota_off(struct super_block *sb, int type) 100419ece546SJan Kara { 10050f0dd62fSChristoph Hellwig return dquot_disable(sb, type, DQUOT_LIMITS_ENABLED); 100619ece546SJan Kara } 100719ece546SJan Kara 10080d54b217SAlexey Dobriyan static const struct quotactl_ops ocfs2_quotactl_ops = { 1009f00c9e44SJan Kara .quota_on_meta = ocfs2_quota_on, 101019ece546SJan Kara .quota_off = ocfs2_quota_off, 1011287a8095SChristoph Hellwig .quota_sync = dquot_quota_sync, 1012287a8095SChristoph Hellwig .get_info = dquot_get_dqinfo, 1013287a8095SChristoph Hellwig .set_info = dquot_set_dqinfo, 1014287a8095SChristoph Hellwig .get_dqblk = dquot_get_dqblk, 1015287a8095SChristoph Hellwig .set_dqblk = dquot_set_dqblk, 101619ece546SJan Kara }; 101719ece546SJan Kara 1018ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 1019ccd979bdSMark Fasheh { 1020ccd979bdSMark Fasheh struct dentry *root; 1021ccd979bdSMark Fasheh int status, sector_size; 1022c0123adeSTiger Yang struct mount_options parsed_options; 1023ccd979bdSMark Fasheh struct inode *inode = NULL; 1024ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1025ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1026c271c5c2SSunil Mushran char nodestr[8]; 102773be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 1028ccd979bdSMark Fasheh 102932a42d39STao Ma trace_ocfs2_fill_super(sb, data, silent); 1030ccd979bdSMark Fasheh 1031c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 1032c271c5c2SSunil Mushran status = -EINVAL; 1033c271c5c2SSunil Mushran goto read_super_error; 1034c271c5c2SSunil Mushran } 1035c271c5c2SSunil Mushran 1036ccd979bdSMark Fasheh /* probe for superblock */ 103773be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1038ccd979bdSMark Fasheh if (status < 0) { 1039ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1040ccd979bdSMark Fasheh goto read_super_error; 1041ccd979bdSMark Fasheh } 1042ccd979bdSMark Fasheh 104373be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1044ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1045ccd979bdSMark Fasheh if (status < 0) { 1046ccd979bdSMark Fasheh mlog_errno(status); 1047ccd979bdSMark Fasheh goto read_super_error; 1048ccd979bdSMark Fasheh } 1049ccd979bdSMark Fasheh brelse(bh); 1050ccd979bdSMark Fasheh bh = NULL; 1051a68979b8STiger Yang 10525297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10535297aad8SJan Kara status = -EINVAL; 10545297aad8SJan Kara goto read_super_error; 10555297aad8SJan Kara } 1056c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1057c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1058c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1059d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 106073c8a800SMark Fasheh 106173c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1062d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 106383f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 106483f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 106583f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 106683f92318SMark Fasheh else 106783f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1068ccd979bdSMark Fasheh 1069b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1070b61817e1SJoel Becker if (status) 1071b61817e1SJoel Becker goto read_super_error; 1072b61817e1SJoel Becker 1073ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1074ccd979bdSMark Fasheh 10759e1f1de0SAl Viro sb->s_flags = (sb->s_flags & ~(MS_POSIXACL | MS_NOSEC)) | 1076a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 1077a68979b8STiger Yang 1078ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 1079ccd979bdSMark Fasheh * heartbeat=none */ 1080ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1081ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 1082ccd979bdSMark Fasheh status = -EACCES; 1083ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1084ccd979bdSMark Fasheh "mount was not specified.\n"); 1085ccd979bdSMark Fasheh goto read_super_error; 1086ccd979bdSMark Fasheh } 1087ccd979bdSMark Fasheh 1088ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1089ccd979bdSMark Fasheh * on a readonly device. */ 1090ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1091ccd979bdSMark Fasheh status = -EROFS; 1092ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1093ccd979bdSMark Fasheh "device.\n"); 1094ccd979bdSMark Fasheh goto read_super_error; 1095ccd979bdSMark Fasheh } 1096ccd979bdSMark Fasheh 1097ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1098ccd979bdSMark Fasheh if (status < 0) { 1099ccd979bdSMark Fasheh if (status == -EROFS) 1100ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1101ccd979bdSMark Fasheh "file system, but write access is " 1102ccd979bdSMark Fasheh "unavailable.\n"); 1103ccd979bdSMark Fasheh else 1104ccd979bdSMark Fasheh mlog_errno(status); 1105ccd979bdSMark Fasheh goto read_super_error; 1106ccd979bdSMark Fasheh } 1107ccd979bdSMark Fasheh 1108ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1109ccd979bdSMark Fasheh 1110ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 1111ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 1112ccd979bdSMark Fasheh "will be skipped.\n"); 1113ccd979bdSMark Fasheh } 1114ccd979bdSMark Fasheh 1115ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1116ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 1117ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1118ccd979bdSMark Fasheh } 1119ccd979bdSMark Fasheh 1120c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1121c271c5c2SSunil Mushran if (status < 0) { 1122c271c5c2SSunil Mushran mlog_errno(status); 1123c271c5c2SSunil Mushran goto read_super_error; 1124c271c5c2SSunil Mushran } 1125c271c5c2SSunil Mushran 1126ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1127ccd979bdSMark Fasheh ocfs2_debugfs_root); 1128ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 1129ccd979bdSMark Fasheh status = -EINVAL; 1130ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1131ccd979bdSMark Fasheh goto read_super_error; 1132ccd979bdSMark Fasheh } 1133ccd979bdSMark Fasheh 113450397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 113550397507SSunil Mushran osb->osb_debug_root, 113650397507SSunil Mushran osb, 113750397507SSunil Mushran &ocfs2_osb_debug_fops); 113850397507SSunil Mushran if (!osb->osb_ctxt) { 113950397507SSunil Mushran status = -EINVAL; 114050397507SSunil Mushran mlog_errno(status); 114150397507SSunil Mushran goto read_super_error; 114250397507SSunil Mushran } 114350397507SSunil Mushran 114473be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 114573be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 114673be192bSJoel Becker &osb->osb_ecc_stats, 114773be192bSJoel Becker osb->osb_debug_root); 114873be192bSJoel Becker if (status) { 114973be192bSJoel Becker mlog(ML_ERROR, 115073be192bSJoel Becker "Unable to create blockcheck statistics " 115173be192bSJoel Becker "files\n"); 115273be192bSJoel Becker goto read_super_error; 115373be192bSJoel Becker } 115473be192bSJoel Becker } 115573be192bSJoel Becker 1156ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1157ccd979bdSMark Fasheh if (osb->root_inode) 1158ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 1159ccd979bdSMark Fasheh 1160ccd979bdSMark Fasheh if (status < 0) 1161ccd979bdSMark Fasheh goto read_super_error; 1162ccd979bdSMark Fasheh 1163ccd979bdSMark Fasheh if (!inode) { 1164ccd979bdSMark Fasheh status = -EIO; 1165ccd979bdSMark Fasheh mlog_errno(status); 1166ccd979bdSMark Fasheh goto read_super_error; 1167ccd979bdSMark Fasheh } 1168ccd979bdSMark Fasheh 1169ccd979bdSMark Fasheh root = d_alloc_root(inode); 1170ccd979bdSMark Fasheh if (!root) { 1171ccd979bdSMark Fasheh status = -ENOMEM; 1172ccd979bdSMark Fasheh mlog_errno(status); 1173ccd979bdSMark Fasheh goto read_super_error; 1174ccd979bdSMark Fasheh } 1175ccd979bdSMark Fasheh 1176ccd979bdSMark Fasheh sb->s_root = root; 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1179ccd979bdSMark Fasheh 1180c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1181c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1182c271c5c2SSunil Mushran else 118319fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1184c271c5c2SSunil Mushran 1185c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1186781ee3e2SSunil Mushran "with %s data mode.\n", 1187c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1188ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1189ccd979bdSMark Fasheh "ordered"); 1190ccd979bdSMark Fasheh 1191ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1192ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1193ccd979bdSMark Fasheh 119419ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 119519ece546SJan Kara * for cluster locks recovery now. That also means that truncation 119619ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 119719ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 119819ece546SJan Kara status = ocfs2_enable_quotas(osb); 119919ece546SJan Kara if (status < 0) { 120019ece546SJan Kara /* We have to err-out specially here because 120119ece546SJan Kara * s_root is already set */ 120219ece546SJan Kara mlog_errno(status); 120319ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 120419ece546SJan Kara wake_up(&osb->osb_mount_event); 120519ece546SJan Kara return status; 120619ece546SJan Kara } 120719ece546SJan Kara } 120819ece546SJan Kara 120919ece546SJan Kara ocfs2_complete_quota_recovery(osb); 121019ece546SJan Kara 121119ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 121219ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 121319ece546SJan Kara wake_up(&osb->osb_mount_event); 121419ece546SJan Kara 1215df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 12168b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1217df152c24SSunil Mushran 1218ccd979bdSMark Fasheh return status; 1219ccd979bdSMark Fasheh 1220ccd979bdSMark Fasheh read_super_error: 1221ccd979bdSMark Fasheh brelse(bh); 1222ccd979bdSMark Fasheh 1223ccd979bdSMark Fasheh if (inode) 1224ccd979bdSMark Fasheh iput(inode); 1225ccd979bdSMark Fasheh 1226ccd979bdSMark Fasheh if (osb) { 1227ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1228ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1229ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1230ccd979bdSMark Fasheh } 1231ccd979bdSMark Fasheh 1232c1e8d35eSTao Ma if (status) 1233c1e8d35eSTao Ma mlog_errno(status); 1234ccd979bdSMark Fasheh return status; 1235ccd979bdSMark Fasheh } 1236ccd979bdSMark Fasheh 1237152a0836SAl Viro static struct dentry *ocfs2_mount(struct file_system_type *fs_type, 1238ccd979bdSMark Fasheh int flags, 1239ccd979bdSMark Fasheh const char *dev_name, 1240152a0836SAl Viro void *data) 1241ccd979bdSMark Fasheh { 1242152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); 1243ccd979bdSMark Fasheh } 1244ccd979bdSMark Fasheh 1245f7b1aa69SJan Kara static void ocfs2_kill_sb(struct super_block *sb) 1246f7b1aa69SJan Kara { 1247f7b1aa69SJan Kara struct ocfs2_super *osb = OCFS2_SB(sb); 1248f7b1aa69SJan Kara 12495fd13189SJan Kara /* Failed mount? */ 12505fd13189SJan Kara if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) 12515fd13189SJan Kara goto out; 12525fd13189SJan Kara 1253f7b1aa69SJan Kara /* Prevent further queueing of inode drop events */ 1254f7b1aa69SJan Kara spin_lock(&dentry_list_lock); 1255f7b1aa69SJan Kara ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); 1256f7b1aa69SJan Kara spin_unlock(&dentry_list_lock); 1257f7b1aa69SJan Kara /* Wait for work to finish and/or remove it */ 1258f7b1aa69SJan Kara cancel_work_sync(&osb->dentry_lock_work); 12595fd13189SJan Kara out: 1260f7b1aa69SJan Kara kill_block_super(sb); 1261f7b1aa69SJan Kara } 1262f7b1aa69SJan Kara 1263ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1264ccd979bdSMark Fasheh .owner = THIS_MODULE, 1265ccd979bdSMark Fasheh .name = "ocfs2", 1266152a0836SAl Viro .mount = ocfs2_mount, 1267f7b1aa69SJan Kara .kill_sb = ocfs2_kill_sb, 1268f7b1aa69SJan Kara 12691ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1270ccd979bdSMark Fasheh .next = NULL 1271ccd979bdSMark Fasheh }; 1272ccd979bdSMark Fasheh 12735297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12745297aad8SJan Kara struct mount_options *options) 12755297aad8SJan Kara { 12765297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12775297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12785297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12795297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12805297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12815297aad8SJan Kara return 0; 12825297aad8SJan Kara } 12835297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12845297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12855297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12865297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12875297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12885297aad8SJan Kara return 0; 12895297aad8SJan Kara } 12905297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12915297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12925297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12935297aad8SJan Kara "feature is not enabled\n"); 12945297aad8SJan Kara return 0; 12955297aad8SJan Kara } 12965297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12975297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12985297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12995297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 13005297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 13015297aad8SJan Kara else 13025297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 13035297aad8SJan Kara } 13045297aad8SJan Kara return 1; 13055297aad8SJan Kara } 13065297aad8SJan Kara 1307ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1308ccd979bdSMark Fasheh char *options, 1309c0123adeSTiger Yang struct mount_options *mopt, 1310ccd979bdSMark Fasheh int is_remount) 1311ccd979bdSMark Fasheh { 131252c303c5SMark Fasheh int status, user_stack = 0; 1313ccd979bdSMark Fasheh char *p; 13142c442719SSunil Mushran u32 tmp; 1315ccd979bdSMark Fasheh 131632a42d39STao Ma trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); 1317ccd979bdSMark Fasheh 1318d147b3d6SMark Fasheh mopt->commit_interval = 0; 13194b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1320c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1321c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 132273c8a800SMark Fasheh mopt->localalloc_opt = -1; 1323b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1324d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 132583f92318SMark Fasheh mopt->dir_resv_level = -1; 1326ccd979bdSMark Fasheh 1327ccd979bdSMark Fasheh if (!options) { 1328ccd979bdSMark Fasheh status = 1; 1329ccd979bdSMark Fasheh goto bail; 1330ccd979bdSMark Fasheh } 1331ccd979bdSMark Fasheh 1332ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1333ccd979bdSMark Fasheh int token, option; 1334ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1335ccd979bdSMark Fasheh 1336ccd979bdSMark Fasheh if (!*p) 1337ccd979bdSMark Fasheh continue; 1338ccd979bdSMark Fasheh 1339ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1340ccd979bdSMark Fasheh switch (token) { 1341ccd979bdSMark Fasheh case Opt_hb_local: 1342c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1343ccd979bdSMark Fasheh break; 1344ccd979bdSMark Fasheh case Opt_hb_none: 13452c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; 13462c442719SSunil Mushran break; 13472c442719SSunil Mushran case Opt_hb_global: 13482c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; 1349ccd979bdSMark Fasheh break; 1350ccd979bdSMark Fasheh case Opt_barrier: 1351ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1352ccd979bdSMark Fasheh status = 0; 1353ccd979bdSMark Fasheh goto bail; 1354ccd979bdSMark Fasheh } 1355ccd979bdSMark Fasheh if (option) 1356c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1357ccd979bdSMark Fasheh else 1358c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1359ccd979bdSMark Fasheh break; 1360ccd979bdSMark Fasheh case Opt_intr: 1361c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1362ccd979bdSMark Fasheh break; 1363ccd979bdSMark Fasheh case Opt_nointr: 1364c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1365ccd979bdSMark Fasheh break; 1366ccd979bdSMark Fasheh case Opt_err_panic: 1367c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1368ccd979bdSMark Fasheh break; 1369ccd979bdSMark Fasheh case Opt_err_ro: 1370c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1371ccd979bdSMark Fasheh break; 1372ccd979bdSMark Fasheh case Opt_data_ordered: 1373c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1374ccd979bdSMark Fasheh break; 1375ccd979bdSMark Fasheh case Opt_data_writeback: 1376c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1377ccd979bdSMark Fasheh break; 1378cf1d6c76STiger Yang case Opt_user_xattr: 1379cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1380cf1d6c76STiger Yang break; 1381cf1d6c76STiger Yang case Opt_nouser_xattr: 1382cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1383cf1d6c76STiger Yang break; 13847f1a37e3STiger Yang case Opt_atime_quantum: 13857f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13867f1a37e3STiger Yang status = 0; 13877f1a37e3STiger Yang goto bail; 13887f1a37e3STiger Yang } 13897f1a37e3STiger Yang if (option >= 0) 1390c0123adeSTiger Yang mopt->atime_quantum = option; 13917f1a37e3STiger Yang break; 1392baf4661aSSunil Mushran case Opt_slot: 1393baf4661aSSunil Mushran option = 0; 1394baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1395baf4661aSSunil Mushran status = 0; 1396baf4661aSSunil Mushran goto bail; 1397baf4661aSSunil Mushran } 1398baf4661aSSunil Mushran if (option) 1399c0123adeSTiger Yang mopt->slot = (s16)option; 1400baf4661aSSunil Mushran break; 1401d147b3d6SMark Fasheh case Opt_commit: 1402d147b3d6SMark Fasheh option = 0; 1403d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1404d147b3d6SMark Fasheh status = 0; 1405d147b3d6SMark Fasheh goto bail; 1406d147b3d6SMark Fasheh } 1407d147b3d6SMark Fasheh if (option < 0) 1408d147b3d6SMark Fasheh return 0; 1409d147b3d6SMark Fasheh if (option == 0) 14102b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1411d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1412d147b3d6SMark Fasheh break; 14132fbe8d1eSSunil Mushran case Opt_localalloc: 14142fbe8d1eSSunil Mushran option = 0; 14152fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 14162fbe8d1eSSunil Mushran status = 0; 14172fbe8d1eSSunil Mushran goto bail; 14182fbe8d1eSSunil Mushran } 141973c8a800SMark Fasheh if (option >= 0) 14202fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 14212fbe8d1eSSunil Mushran break; 142253fc622bSMark Fasheh case Opt_localflocks: 142353fc622bSMark Fasheh /* 142453fc622bSMark Fasheh * Changing this during remount could race 142553fc622bSMark Fasheh * flock() requests, or "unbalance" existing 142653fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 142753fc622bSMark Fasheh * dropped in the other). If users care enough 142853fc622bSMark Fasheh * to flip locking modes during remount, we 142953fc622bSMark Fasheh * could add a "local" flag to individual 143053fc622bSMark Fasheh * flock structures for proper tracking of 143153fc622bSMark Fasheh * state. 143253fc622bSMark Fasheh */ 143353fc622bSMark Fasheh if (!is_remount) 143453fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 143553fc622bSMark Fasheh break; 1436b61817e1SJoel Becker case Opt_stack: 1437b61817e1SJoel Becker /* Check both that the option we were passed 1438b61817e1SJoel Becker * is of the right length and that it is a proper 1439b61817e1SJoel Becker * string of the right length. 1440b61817e1SJoel Becker */ 1441b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1442b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1443b61817e1SJoel Becker (strnlen(args[0].from, 1444b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1445b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1446b61817e1SJoel Becker mlog(ML_ERROR, 1447b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1448b61817e1SJoel Becker status = 0; 1449b61817e1SJoel Becker goto bail; 1450b61817e1SJoel Becker } 1451b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1452b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1453b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 145452c303c5SMark Fasheh /* 145552c303c5SMark Fasheh * Open code the memcmp here as we don't have 145652c303c5SMark Fasheh * an osb to pass to 145752c303c5SMark Fasheh * ocfs2_userspace_stack(). 145852c303c5SMark Fasheh */ 145952c303c5SMark Fasheh if (memcmp(mopt->cluster_stack, 146052c303c5SMark Fasheh OCFS2_CLASSIC_CLUSTER_STACK, 146152c303c5SMark Fasheh OCFS2_STACK_LABEL_LEN)) 146252c303c5SMark Fasheh user_stack = 1; 1463b61817e1SJoel Becker break; 146412462f1dSJoel Becker case Opt_inode64: 146512462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 146612462f1dSJoel Becker break; 146719ece546SJan Kara case Opt_usrquota: 146819ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 146919ece546SJan Kara break; 147019ece546SJan Kara case Opt_grpquota: 147119ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 147219ece546SJan Kara break; 14737bdb0d18STristan Ye case Opt_coherency_buffered: 14747bdb0d18STristan Ye mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; 14757bdb0d18STristan Ye break; 14767bdb0d18STristan Ye case Opt_coherency_full: 14777bdb0d18STristan Ye mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; 14787bdb0d18STristan Ye break; 1479a68979b8STiger Yang case Opt_acl: 1480a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14815297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1482a68979b8STiger Yang break; 1483a68979b8STiger Yang case Opt_noacl: 14845297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1485a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1486a68979b8STiger Yang break; 1487d02f00ccSMark Fasheh case Opt_resv_level: 1488d02f00ccSMark Fasheh if (is_remount) 1489d02f00ccSMark Fasheh break; 1490d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1491d02f00ccSMark Fasheh status = 0; 1492d02f00ccSMark Fasheh goto bail; 1493d02f00ccSMark Fasheh } 1494d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1495d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1496d02f00ccSMark Fasheh mopt->resv_level = option; 1497d02f00ccSMark Fasheh break; 149883f92318SMark Fasheh case Opt_dir_resv_level: 149983f92318SMark Fasheh if (is_remount) 150083f92318SMark Fasheh break; 150183f92318SMark Fasheh if (match_int(&args[0], &option)) { 150283f92318SMark Fasheh status = 0; 150383f92318SMark Fasheh goto bail; 150483f92318SMark Fasheh } 150583f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 150683f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 150783f92318SMark Fasheh mopt->dir_resv_level = option; 150883f92318SMark Fasheh break; 1509ccd979bdSMark Fasheh default: 1510ccd979bdSMark Fasheh mlog(ML_ERROR, 1511ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1512ccd979bdSMark Fasheh "or missing value\n", p); 1513ccd979bdSMark Fasheh status = 0; 1514ccd979bdSMark Fasheh goto bail; 1515ccd979bdSMark Fasheh } 1516ccd979bdSMark Fasheh } 1517ccd979bdSMark Fasheh 151852c303c5SMark Fasheh if (user_stack == 0) { 15192c442719SSunil Mushran /* Ensure only one heartbeat mode */ 152052c303c5SMark Fasheh tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | 152152c303c5SMark Fasheh OCFS2_MOUNT_HB_GLOBAL | 15222c442719SSunil Mushran OCFS2_MOUNT_HB_NONE); 15232c442719SSunil Mushran if (hweight32(tmp) != 1) { 15242c442719SSunil Mushran mlog(ML_ERROR, "Invalid heartbeat mount options\n"); 15252c442719SSunil Mushran status = 0; 15262c442719SSunil Mushran goto bail; 15272c442719SSunil Mushran } 152852c303c5SMark Fasheh } 15292c442719SSunil Mushran 1530ccd979bdSMark Fasheh status = 1; 1531ccd979bdSMark Fasheh 1532ccd979bdSMark Fasheh bail: 1533ccd979bdSMark Fasheh return status; 1534ccd979bdSMark Fasheh } 1535ccd979bdSMark Fasheh 1536d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1537d550071cSSunil Mushran { 1538d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1539d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1540ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1541d550071cSSunil Mushran 15422c442719SSunil Mushran if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { 15432c442719SSunil Mushran seq_printf(s, ",_netdev"); 1544d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 15452c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_LOCAL); 1546d550071cSSunil Mushran else 15472c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_GLOBAL); 15482c442719SSunil Mushran } else 15492c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_NONE); 1550d550071cSSunil Mushran 1551d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1552d550071cSSunil Mushran seq_printf(s, ",nointr"); 1553d550071cSSunil Mushran 1554d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1555d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1556d550071cSSunil Mushran else 1557d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1558d550071cSSunil Mushran 1559d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1560d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1561d550071cSSunil Mushran 1562d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1563d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1564d550071cSSunil Mushran else 1565d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1566d550071cSSunil Mushran 1567d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1568d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1569d550071cSSunil Mushran 1570e2b0c215STiger Yang if (!(mnt->mnt_flags & MNT_NOATIME) && !(mnt->mnt_flags & MNT_RELATIME)) 1571d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1572d550071cSSunil Mushran 1573d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1574d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1575d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1576d147b3d6SMark Fasheh 1577ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15786b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1579ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15802fbe8d1eSSunil Mushran 158153fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 158253fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 158353fc622bSMark Fasheh 1584b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1585b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1586b61817e1SJoel Becker osb->osb_cluster_stack); 158719ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 158819ece546SJan Kara seq_printf(s, ",usrquota"); 158919ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 159019ece546SJan Kara seq_printf(s, ",grpquota"); 1591b61817e1SJoel Becker 15927bdb0d18STristan Ye if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) 15937bdb0d18STristan Ye seq_printf(s, ",coherency=buffered"); 15947bdb0d18STristan Ye else 15957bdb0d18STristan Ye seq_printf(s, ",coherency=full"); 15967bdb0d18STristan Ye 1597b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1598b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1599b0f73cfcSSunil Mushran else 1600b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1601b0f73cfcSSunil Mushran 160212462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 160312462f1dSJoel Becker seq_printf(s, ",inode64"); 160412462f1dSJoel Becker 1605a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1606a68979b8STiger Yang seq_printf(s, ",acl"); 1607a68979b8STiger Yang else 1608a68979b8STiger Yang seq_printf(s, ",noacl"); 1609a68979b8STiger Yang 1610d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1611d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1612d02f00ccSMark Fasheh 161383f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 161483f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 161583f92318SMark Fasheh 1616d550071cSSunil Mushran return 0; 1617d550071cSSunil Mushran } 1618d550071cSSunil Mushran 1619ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1620ccd979bdSMark Fasheh { 1621ccd979bdSMark Fasheh int status; 1622ccd979bdSMark Fasheh 1623ccd979bdSMark Fasheh ocfs2_print_version(); 1624ccd979bdSMark Fasheh 1625ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1626ccd979bdSMark Fasheh if (status < 0) { 1627ccd979bdSMark Fasheh mlog_errno(status); 1628ccd979bdSMark Fasheh goto leave; 1629ccd979bdSMark Fasheh } 1630ccd979bdSMark Fasheh 1631ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1632ccd979bdSMark Fasheh if (status < 0) { 1633ccd979bdSMark Fasheh mlog_errno(status); 1634ccd979bdSMark Fasheh goto leave; 1635ccd979bdSMark Fasheh } 1636ccd979bdSMark Fasheh 1637ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1638ccd979bdSMark Fasheh if (!ocfs2_wq) { 1639ccd979bdSMark Fasheh status = -ENOMEM; 1640ccd979bdSMark Fasheh goto leave; 1641ccd979bdSMark Fasheh } 1642ccd979bdSMark Fasheh 1643ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1644ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1645ccd979bdSMark Fasheh status = -EFAULT; 1646ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1647ccd979bdSMark Fasheh } 1648ccd979bdSMark Fasheh 164963e0c48aSJoel Becker ocfs2_set_locking_protocol(); 165063e0c48aSJoel Becker 16519e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1652ccd979bdSMark Fasheh leave: 1653ccd979bdSMark Fasheh if (status < 0) { 1654ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1655ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1656c1e8d35eSTao Ma mlog_errno(status); 1657ccd979bdSMark Fasheh } 1658ccd979bdSMark Fasheh 1659ccd979bdSMark Fasheh if (status >= 0) { 1660ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1661ccd979bdSMark Fasheh } else 1662ccd979bdSMark Fasheh return -1; 1663ccd979bdSMark Fasheh } 1664ccd979bdSMark Fasheh 1665ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1666ccd979bdSMark Fasheh { 1667ccd979bdSMark Fasheh if (ocfs2_wq) { 1668ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1669ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1670ccd979bdSMark Fasheh } 1671ccd979bdSMark Fasheh 16729e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 16739e33d69fSJan Kara 1674ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1675ccd979bdSMark Fasheh 1676ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1677ccd979bdSMark Fasheh 1678ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1679ccd979bdSMark Fasheh 1680ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1681ccd979bdSMark Fasheh } 1682ccd979bdSMark Fasheh 1683ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1684ccd979bdSMark Fasheh { 168532a42d39STao Ma trace_ocfs2_put_super(sb); 1686ccd979bdSMark Fasheh 1687ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1688ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1689ccd979bdSMark Fasheh } 1690ccd979bdSMark Fasheh 1691726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1692ccd979bdSMark Fasheh { 1693ccd979bdSMark Fasheh struct ocfs2_super *osb; 1694ccd979bdSMark Fasheh u32 numbits, freebits; 1695ccd979bdSMark Fasheh int status; 1696ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1697ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1698ccd979bdSMark Fasheh struct inode *inode = NULL; 1699ccd979bdSMark Fasheh 170032a42d39STao Ma trace_ocfs2_statfs(dentry->d_sb, buf); 1701ccd979bdSMark Fasheh 1702726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1703ccd979bdSMark Fasheh 1704ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1705ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1706ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1707ccd979bdSMark Fasheh if (!inode) { 1708ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1709ccd979bdSMark Fasheh status = -EIO; 1710ccd979bdSMark Fasheh goto bail; 1711ccd979bdSMark Fasheh } 1712ccd979bdSMark Fasheh 1713e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1714ccd979bdSMark Fasheh if (status < 0) { 1715ccd979bdSMark Fasheh mlog_errno(status); 1716ccd979bdSMark Fasheh goto bail; 1717ccd979bdSMark Fasheh } 1718ccd979bdSMark Fasheh 1719ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1720ccd979bdSMark Fasheh 1721ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1722ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1723ccd979bdSMark Fasheh 1724ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1725726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1726ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1727ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1728ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1729ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1730ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1731ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1732ccd979bdSMark Fasheh buf->f_files = numbits; 1733ccd979bdSMark Fasheh buf->f_ffree = freebits; 1734837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1735837711f8SColy Li & 0xFFFFFFFFUL; 1736837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1737837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1738ccd979bdSMark Fasheh 1739ccd979bdSMark Fasheh brelse(bh); 1740ccd979bdSMark Fasheh 1741e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1742ccd979bdSMark Fasheh status = 0; 1743ccd979bdSMark Fasheh bail: 1744ccd979bdSMark Fasheh if (inode) 1745ccd979bdSMark Fasheh iput(inode); 1746ccd979bdSMark Fasheh 1747c1e8d35eSTao Ma if (status) 1748c1e8d35eSTao Ma mlog_errno(status); 1749ccd979bdSMark Fasheh 1750ccd979bdSMark Fasheh return status; 1751ccd979bdSMark Fasheh } 1752ccd979bdSMark Fasheh 175351cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1754ccd979bdSMark Fasheh { 1755ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1756ccd979bdSMark Fasheh 1757ccd979bdSMark Fasheh oi->ip_flags = 0; 1758ccd979bdSMark Fasheh oi->ip_open_count = 0; 1759ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 176083418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1761ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1762ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1763ccd979bdSMark Fasheh 1764ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1765cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1766251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1767ccd979bdSMark Fasheh 1768ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1769ccd979bdSMark Fasheh oi->ip_clusters = 0; 1770ccd979bdSMark Fasheh 17714fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 17724fe370afSMark Fasheh 1773ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1774e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 177550008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1776ccd979bdSMark Fasheh 17778cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 17786e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1779ccd979bdSMark Fasheh 1780ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1781ccd979bdSMark Fasheh } 1782ccd979bdSMark Fasheh 1783ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1784ccd979bdSMark Fasheh { 1785ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1786ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1787fffb60f9SPaul Jackson 0, 1788fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1789fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 179020c2df83SPaul Mundt ocfs2_inode_init_once); 17919e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17929e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17939e33d69fSJan Kara 0, 17949e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17959e33d69fSJan Kara SLAB_MEM_SPREAD), 17969e33d69fSJan Kara NULL); 17979e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17989e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17999e33d69fSJan Kara 0, 18009e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 18019e33d69fSJan Kara NULL); 18029e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 18039e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 18049e33d69fSJan Kara if (ocfs2_inode_cachep) 18059e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 18069e33d69fSJan Kara if (ocfs2_dquot_cachep) 18079e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 18089e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 18099e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1810ccd979bdSMark Fasheh return -ENOMEM; 18119e33d69fSJan Kara } 1812ccd979bdSMark Fasheh 1813ccd979bdSMark Fasheh return 0; 1814ccd979bdSMark Fasheh } 1815ccd979bdSMark Fasheh 1816ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1817ccd979bdSMark Fasheh { 1818ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1819ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1820ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 18219e33d69fSJan Kara 18229e33d69fSJan Kara if (ocfs2_dquot_cachep) 18239e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 18249e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 18259e33d69fSJan Kara 18269e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 18279e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 18289e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1829ccd979bdSMark Fasheh } 1830ccd979bdSMark Fasheh 1831ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1832ccd979bdSMark Fasheh struct buffer_head **bh, 1833ccd979bdSMark Fasheh int block, 1834ccd979bdSMark Fasheh int sect_size) 1835ccd979bdSMark Fasheh { 1836ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1837ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1838ccd979bdSMark Fasheh return -EIO; 1839ccd979bdSMark Fasheh } 1840ccd979bdSMark Fasheh 1841ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1842ccd979bdSMark Fasheh if (!*bh) { 1843ccd979bdSMark Fasheh mlog_errno(-EIO); 1844ccd979bdSMark Fasheh return -EIO; 1845ccd979bdSMark Fasheh } 1846ccd979bdSMark Fasheh lock_buffer(*bh); 1847ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1848ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1849ccd979bdSMark Fasheh unlock_buffer(*bh); 1850ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1851ccd979bdSMark Fasheh wait_on_buffer(*bh); 185228d57d43Swengang wang if (!buffer_uptodate(*bh)) { 185328d57d43Swengang wang mlog_errno(-EIO); 185428d57d43Swengang wang brelse(*bh); 185528d57d43Swengang wang *bh = NULL; 185628d57d43Swengang wang return -EIO; 185728d57d43Swengang wang } 185828d57d43Swengang wang 1859ccd979bdSMark Fasheh return 0; 1860ccd979bdSMark Fasheh } 1861ccd979bdSMark Fasheh 1862ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1863ccd979bdSMark Fasheh { 1864ccd979bdSMark Fasheh int status = 0; 1865ccd979bdSMark Fasheh int unlock_super = 0; 1866ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1867ccd979bdSMark Fasheh 1868ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1869ccd979bdSMark Fasheh goto leave; 1870ccd979bdSMark Fasheh 1871ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1872ccd979bdSMark Fasheh if (status < 0) { 1873ccd979bdSMark Fasheh mlog_errno(status); 1874ccd979bdSMark Fasheh goto leave; 1875ccd979bdSMark Fasheh } 1876ccd979bdSMark Fasheh 1877ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1878ccd979bdSMark Fasheh if (status < 0) { 1879ccd979bdSMark Fasheh mlog_errno(status); 1880ccd979bdSMark Fasheh goto leave; 1881ccd979bdSMark Fasheh } 1882ccd979bdSMark Fasheh unlock_super = 1; 1883ccd979bdSMark Fasheh 1884ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1885ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1886ccd979bdSMark Fasheh if (status < 0) { 1887ccd979bdSMark Fasheh mlog_errno(status); 1888ccd979bdSMark Fasheh goto leave; 1889ccd979bdSMark Fasheh } 1890ccd979bdSMark Fasheh 1891ccd979bdSMark Fasheh /* load all node-local system inodes */ 1892ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1893ccd979bdSMark Fasheh if (status < 0) { 1894ccd979bdSMark Fasheh mlog_errno(status); 1895ccd979bdSMark Fasheh goto leave; 1896ccd979bdSMark Fasheh } 1897ccd979bdSMark Fasheh 1898ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1899ccd979bdSMark Fasheh if (status < 0) { 1900ccd979bdSMark Fasheh mlog_errno(status); 1901ccd979bdSMark Fasheh goto leave; 1902ccd979bdSMark Fasheh } 1903ccd979bdSMark Fasheh 1904ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 190506c59bb8STao Ma if (status < 0) 1906ccd979bdSMark Fasheh mlog_errno(status); 1907c271c5c2SSunil Mushran 1908ccd979bdSMark Fasheh leave: 1909ccd979bdSMark Fasheh if (unlock_super) 1910ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1911ccd979bdSMark Fasheh 1912ccd979bdSMark Fasheh return status; 1913ccd979bdSMark Fasheh } 1914ccd979bdSMark Fasheh 1915ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1916ccd979bdSMark Fasheh { 1917286eaa95SJoel Becker int tmp, hangup_needed = 0; 1918ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1919c271c5c2SSunil Mushran char nodestr[8]; 1920ccd979bdSMark Fasheh 192132a42d39STao Ma trace_ocfs2_dismount_volume(sb); 1922ccd979bdSMark Fasheh 1923ccd979bdSMark Fasheh BUG_ON(!sb); 1924ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1925ccd979bdSMark Fasheh BUG_ON(!osb); 1926ccd979bdSMark Fasheh 192750397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 192850397507SSunil Mushran 1929f7b1aa69SJan Kara /* 1930f7b1aa69SJan Kara * Flush inode dropping work queue so that deletes are 1931f7b1aa69SJan Kara * performed while the filesystem is still working 1932f7b1aa69SJan Kara */ 1933f7b1aa69SJan Kara ocfs2_drop_all_dl_inodes(osb); 1934f7b1aa69SJan Kara 1935692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1936692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1937692684e1SSunil Mushran 193819ece546SJan Kara ocfs2_disable_quotas(osb); 193919ece546SJan Kara 1940ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1941ccd979bdSMark Fasheh 1942ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1943ccd979bdSMark Fasheh 1944553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1945553abd04SJoel Becker ocfs2_recovery_exit(osb); 1946ccd979bdSMark Fasheh 1947ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1948ccd979bdSMark Fasheh 1949ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1950ccd979bdSMark Fasheh 1951374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1952374a263eSTao Ma 19534670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 19544670c46dSJoel Becker * all the steps which depended on that to complete. */ 19554670c46dSJoel Becker if (osb->cconn) { 1956ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1957ccd979bdSMark Fasheh if (tmp < 0) { 1958ccd979bdSMark Fasheh mlog_errno(tmp); 1959ccd979bdSMark Fasheh return; 1960ccd979bdSMark Fasheh } 196119b613d4SMark Fasheh } 1962ccd979bdSMark Fasheh 1963ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1964ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1965ccd979bdSMark Fasheh 19664670c46dSJoel Becker if (osb->cconn) 1967ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1968ccd979bdSMark Fasheh 1969ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1970ccd979bdSMark Fasheh 19716953b4c0SJoel Becker /* 19726953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19736953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19746953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19756953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19766953b4c0SJoel Becker */ 19776953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1978286eaa95SJoel Becker hangup_needed = 1; 1979286eaa95SJoel Becker 1980286eaa95SJoel Becker if (osb->cconn) 1981286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1982286eaa95SJoel Becker 198373be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1984286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1985286eaa95SJoel Becker 1986286eaa95SJoel Becker if (hangup_needed) 19876953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1988ccd979bdSMark Fasheh 1989ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1990ccd979bdSMark Fasheh 1991c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1992c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1993c271c5c2SSunil Mushran else 199419fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1995c271c5c2SSunil Mushran 1996c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1997c271c5c2SSunil Mushran osb->dev_str, nodestr); 1998ccd979bdSMark Fasheh 1999ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 2000ccd979bdSMark Fasheh kfree(osb); 2001ccd979bdSMark Fasheh sb->s_dev = 0; 2002ccd979bdSMark Fasheh sb->s_fs_info = NULL; 2003ccd979bdSMark Fasheh } 2004ccd979bdSMark Fasheh 2005ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 2006ccd979bdSMark Fasheh unsigned uuid_bytes) 2007ccd979bdSMark Fasheh { 2008ccd979bdSMark Fasheh int i, ret; 2009ccd979bdSMark Fasheh char *ptr; 2010ccd979bdSMark Fasheh 2011ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 2012ccd979bdSMark Fasheh 2013cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 2014ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 2015ccd979bdSMark Fasheh return -ENOMEM; 2016ccd979bdSMark Fasheh 2017ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 2018ccd979bdSMark Fasheh /* print with null */ 2019ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 2020ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 2021ccd979bdSMark Fasheh return -EINVAL; 2022ccd979bdSMark Fasheh /* then only advance past the last char */ 2023ccd979bdSMark Fasheh ptr += 2; 2024ccd979bdSMark Fasheh } 2025ccd979bdSMark Fasheh 2026ccd979bdSMark Fasheh return 0; 2027ccd979bdSMark Fasheh } 2028ccd979bdSMark Fasheh 20293bdb8efdSPatrick J. LoPresti /* Make sure entire volume is addressable by our journal. Requires 20303bdb8efdSPatrick J. LoPresti osb_clusters_at_boot to be valid and for the journal to have been 20313bdb8efdSPatrick J. LoPresti initialized by ocfs2_journal_init(). */ 20323bdb8efdSPatrick J. LoPresti static int ocfs2_journal_addressable(struct ocfs2_super *osb) 20333bdb8efdSPatrick J. LoPresti { 20343bdb8efdSPatrick J. LoPresti int status = 0; 20353bdb8efdSPatrick J. LoPresti u64 max_block = 20363bdb8efdSPatrick J. LoPresti ocfs2_clusters_to_blocks(osb->sb, 20373bdb8efdSPatrick J. LoPresti osb->osb_clusters_at_boot) - 1; 20383bdb8efdSPatrick J. LoPresti 20393bdb8efdSPatrick J. LoPresti /* 32-bit block number is always OK. */ 20403bdb8efdSPatrick J. LoPresti if (max_block <= (u32)~0ULL) 20413bdb8efdSPatrick J. LoPresti goto out; 20423bdb8efdSPatrick J. LoPresti 20433bdb8efdSPatrick J. LoPresti /* Volume is "huge", so see if our journal is new enough to 20443bdb8efdSPatrick J. LoPresti support it. */ 20453bdb8efdSPatrick J. LoPresti if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, 20463bdb8efdSPatrick J. LoPresti OCFS2_FEATURE_COMPAT_JBD2_SB) && 20473bdb8efdSPatrick J. LoPresti jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, 20483bdb8efdSPatrick J. LoPresti JBD2_FEATURE_INCOMPAT_64BIT))) { 20493bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "The journal cannot address the entire volume. " 20503bdb8efdSPatrick J. LoPresti "Enable the 'block64' journal option with tunefs.ocfs2"); 20513bdb8efdSPatrick J. LoPresti status = -EFBIG; 20523bdb8efdSPatrick J. LoPresti goto out; 20533bdb8efdSPatrick J. LoPresti } 20543bdb8efdSPatrick J. LoPresti 20553bdb8efdSPatrick J. LoPresti out: 20563bdb8efdSPatrick J. LoPresti return status; 20573bdb8efdSPatrick J. LoPresti } 20583bdb8efdSPatrick J. LoPresti 2059ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 2060ccd979bdSMark Fasheh struct buffer_head *bh, 206173be192bSJoel Becker int sector_size, 206273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2063ccd979bdSMark Fasheh { 2064bddb8eb3SDenis Cheng int status; 20655a254031SMark Fasheh int i, cbits, bbits; 20665a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2067ccd979bdSMark Fasheh struct inode *inode = NULL; 2068ccd979bdSMark Fasheh struct ocfs2_journal *journal; 2069ccd979bdSMark Fasheh __le32 uuid_net_key; 2070ccd979bdSMark Fasheh struct ocfs2_super *osb; 20713bdb8efdSPatrick J. LoPresti u64 total_blocks; 2072ccd979bdSMark Fasheh 2073cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2074ccd979bdSMark Fasheh if (!osb) { 2075ccd979bdSMark Fasheh status = -ENOMEM; 2076ccd979bdSMark Fasheh mlog_errno(status); 2077ccd979bdSMark Fasheh goto bail; 2078ccd979bdSMark Fasheh } 2079ccd979bdSMark Fasheh 2080ccd979bdSMark Fasheh sb->s_fs_info = osb; 2081ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2082ba87167cSAl Viro sb->s_d_op = &ocfs2_dentry_ops; 2083ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 208419ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 208519ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 2086cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2087e0dceaf0SMark Fasheh sb->s_time_gran = 1; 2088ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 2089ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20905a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20915a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20925a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 2093ccd979bdSMark Fasheh 20949b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20959b7895efSMark Fasheh 20969b7895efSMark Fasheh for (i = 0; i < 3; i++) 20979b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 20989b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 20999b7895efSMark Fasheh 2100ccd979bdSMark Fasheh osb->sb = sb; 2101ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 2102ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2103ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2104ccd979bdSMark Fasheh 210534d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 210634d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 210734d024f8SMark Fasheh osb->dc_work_sequence = 0; 210834d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2109ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2110ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2111ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2112c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2113b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2114ccd979bdSMark Fasheh 2115ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2116ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2117ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2118ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2119ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2120ccd979bdSMark Fasheh 212173be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 212273be192bSJoel Becker osb->osb_ecc_stats = *stats; 212373be192bSJoel Becker 2124ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2125ccd979bdSMark Fasheh 2126ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2127ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2128ccd979bdSMark Fasheh 212975d9bbc7SGoldwyn Rodrigues osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 213075d9bbc7SGoldwyn Rodrigues if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 213175d9bbc7SGoldwyn Rodrigues mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 213275d9bbc7SGoldwyn Rodrigues osb->max_slots); 213375d9bbc7SGoldwyn Rodrigues status = -EINVAL; 213475d9bbc7SGoldwyn Rodrigues goto bail; 213575d9bbc7SGoldwyn Rodrigues } 213675d9bbc7SGoldwyn Rodrigues 21378b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 21388b712cd5SJeff Mahoney 2139553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2140553abd04SJoel Becker if (status) { 2141553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2142553abd04SJoel Becker mlog_errno(status); 2143553abd04SJoel Becker goto bail; 2144553abd04SJoel Becker } 2145ccd979bdSMark Fasheh 2146ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2147ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 2148ccd979bdSMark Fasheh 21497f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 21507f1a37e3STiger Yang 2151ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2152ccd979bdSMark Fasheh 21538154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 21548154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2155fdd77704STiger Yang 2156ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2157ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 21589c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2159ccd979bdSMark Fasheh 2160ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2161ccd979bdSMark Fasheh 2162d02f00ccSMark Fasheh status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2163d02f00ccSMark Fasheh if (status) { 2164d02f00ccSMark Fasheh mlog_errno(status); 2165d02f00ccSMark Fasheh goto bail; 2166d02f00ccSMark Fasheh } 2167d02f00ccSMark Fasheh 2168ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2169ccd979bdSMark Fasheh if (!osb->vol_label) { 2170ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2171ccd979bdSMark Fasheh status = -ENOMEM; 2172ccd979bdSMark Fasheh goto bail; 2173ccd979bdSMark Fasheh } 2174ccd979bdSMark Fasheh 2175539d8264SSunil Mushran osb->slot_recovery_generations = 2176539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2177539d8264SSunil Mushran GFP_KERNEL); 2178539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2179539d8264SSunil Mushran status = -ENOMEM; 2180539d8264SSunil Mushran mlog_errno(status); 2181539d8264SSunil Mushran goto bail; 2182539d8264SSunil Mushran } 2183539d8264SSunil Mushran 2184b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2185b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2186b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2187b4df6ed8SMark Fasheh GFP_KERNEL); 2188b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2189b4df6ed8SMark Fasheh status = -ENOMEM; 2190b4df6ed8SMark Fasheh mlog_errno(status); 2191b4df6ed8SMark Fasheh goto bail; 2192b4df6ed8SMark Fasheh } 2193b4df6ed8SMark Fasheh 2194374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2195374a263eSTao Ma 2196ccd979bdSMark Fasheh osb->s_feature_compat = 2197ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2198ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2199ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2200ccd979bdSMark Fasheh osb->s_feature_incompat = 2201ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2202ccd979bdSMark Fasheh 2203ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2204ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2205ccd979bdSMark Fasheh "optional features (%x).\n", i); 2206ccd979bdSMark Fasheh status = -EINVAL; 2207ccd979bdSMark Fasheh goto bail; 2208ccd979bdSMark Fasheh } 2209ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 2210ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2211ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2212ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2213ccd979bdSMark Fasheh status = -EINVAL; 2214ccd979bdSMark Fasheh goto bail; 2215ccd979bdSMark Fasheh } 2216ccd979bdSMark Fasheh 221798f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 221898f486f2SSunil Mushran osb->osb_stackflags = 221998f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2220b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 2221b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2222b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 2223b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 2224b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2225b61817e1SJoel Becker mlog(ML_ERROR, 2226b61817e1SJoel Becker "couldn't mount because of an invalid " 2227b61817e1SJoel Becker "cluster stack label (%s) \n", 2228b61817e1SJoel Becker osb->osb_cluster_stack); 2229b61817e1SJoel Becker status = -EINVAL; 2230b61817e1SJoel Becker goto bail; 2231b61817e1SJoel Becker } 2232b61817e1SJoel Becker } else { 2233b61817e1SJoel Becker /* The empty string is identical with classic tools that 2234b61817e1SJoel Becker * don't know about s_cluster_info. */ 2235b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2236b61817e1SJoel Becker } 2237b61817e1SJoel Becker 2238ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2239ccd979bdSMark Fasheh 2240ccd979bdSMark Fasheh /* FIXME 2241ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2242ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2243ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2244ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2245ccd979bdSMark Fasheh * be my guest. 2246ccd979bdSMark Fasheh */ 2247ccd979bdSMark Fasheh /* initialize our journal structure */ 2248ccd979bdSMark Fasheh 2249cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2250ccd979bdSMark Fasheh if (!journal) { 2251ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2252ccd979bdSMark Fasheh status = -ENOMEM; 2253ccd979bdSMark Fasheh goto bail; 2254ccd979bdSMark Fasheh } 2255ccd979bdSMark Fasheh osb->journal = journal; 2256ccd979bdSMark Fasheh journal->j_osb = osb; 2257ccd979bdSMark Fasheh 2258ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2259ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2260ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2261ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2262ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2263ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2264c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2265ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2266ccd979bdSMark Fasheh 2267ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 2268ea455f8aSJan Kara osb->dentry_lock_list = NULL; 2269ea455f8aSJan Kara 2270ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2271ccd979bdSMark Fasheh osb->s_clustersize_bits = 2272ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2273ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2274ccd979bdSMark Fasheh 2275ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2276ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2277ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2278ccd979bdSMark Fasheh osb->s_clustersize); 2279ccd979bdSMark Fasheh status = -EINVAL; 2280ccd979bdSMark Fasheh goto bail; 2281ccd979bdSMark Fasheh } 2282ccd979bdSMark Fasheh 22833bdb8efdSPatrick J. LoPresti total_blocks = ocfs2_clusters_to_blocks(osb->sb, 22843bdb8efdSPatrick J. LoPresti le32_to_cpu(di->i_clusters)); 22853bdb8efdSPatrick J. LoPresti 22863bdb8efdSPatrick J. LoPresti status = generic_check_addressable(osb->sb->s_blocksize_bits, 22873bdb8efdSPatrick J. LoPresti total_blocks); 22883bdb8efdSPatrick J. LoPresti if (status) { 22893bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "Volume too large " 22903bdb8efdSPatrick J. LoPresti "to mount safely on this system"); 22913bdb8efdSPatrick J. LoPresti status = -EFBIG; 2292ccd979bdSMark Fasheh goto bail; 2293ccd979bdSMark Fasheh } 2294ccd979bdSMark Fasheh 2295ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2296ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2297ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2298ccd979bdSMark Fasheh status = -ENOMEM; 2299ccd979bdSMark Fasheh goto bail; 2300ccd979bdSMark Fasheh } 2301ccd979bdSMark Fasheh 230278427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 2303ccd979bdSMark Fasheh 2304ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 2305ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 2306ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2307ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2308ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2309ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2310ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2311cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 231232a42d39STao Ma trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, 2313b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 231432a42d39STao Ma (unsigned long long)osb->system_dir_blkno, 231532a42d39STao Ma osb->s_clustersize_bits); 2316ccd979bdSMark Fasheh 2317ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2318ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2319ccd979bdSMark Fasheh status = -ENOMEM; 2320ccd979bdSMark Fasheh mlog_errno(status); 2321ccd979bdSMark Fasheh goto bail; 2322ccd979bdSMark Fasheh } 2323ccd979bdSMark Fasheh 2324ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2325ccd979bdSMark Fasheh 2326ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2327ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2328ccd979bdSMark Fasheh if (status < 0) { 2329ccd979bdSMark Fasheh mlog_errno(status); 2330ccd979bdSMark Fasheh goto bail; 2331ccd979bdSMark Fasheh } 2332ccd979bdSMark Fasheh 2333ccd979bdSMark Fasheh /* 2334ccd979bdSMark Fasheh * global bitmap 2335ccd979bdSMark Fasheh */ 2336ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2337ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2338ccd979bdSMark Fasheh if (!inode) { 2339ccd979bdSMark Fasheh status = -EINVAL; 2340ccd979bdSMark Fasheh mlog_errno(status); 2341ccd979bdSMark Fasheh goto bail; 2342ccd979bdSMark Fasheh } 2343ccd979bdSMark Fasheh 2344ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 23456b82021bSMark Fasheh osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; 2346ccd979bdSMark Fasheh iput(inode); 2347ccd979bdSMark Fasheh 23488571882cSTao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, 23498571882cSTao Ma osb->s_feature_incompat) * 8; 2350ccd979bdSMark Fasheh 2351ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2352ccd979bdSMark Fasheh if (status < 0) { 2353ccd979bdSMark Fasheh mlog_errno(status); 2354ccd979bdSMark Fasheh goto bail; 2355ccd979bdSMark Fasheh } 23561cfd8bd0SDan Magenheimer cleancache_init_shared_fs((char *)&uuid_net_key, sb); 2357ccd979bdSMark Fasheh 2358ccd979bdSMark Fasheh bail: 2359ccd979bdSMark Fasheh return status; 2360ccd979bdSMark Fasheh } 2361ccd979bdSMark Fasheh 2362ccd979bdSMark Fasheh /* 2363ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2364ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2365ccd979bdSMark Fasheh * 0 on success 2366ccd979bdSMark Fasheh */ 2367ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2368ccd979bdSMark Fasheh struct buffer_head *bh, 236973be192bSJoel Becker u32 blksz, 237073be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2371ccd979bdSMark Fasheh { 2372ccd979bdSMark Fasheh int status = -EAGAIN; 2373ccd979bdSMark Fasheh 2374ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2375ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2376d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2377d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2378d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2379d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2380d030cc97SJoel Becker bh->b_size, 238173be192bSJoel Becker &di->i_check, 238273be192bSJoel Becker stats); 2383d030cc97SJoel Becker if (status) 2384d030cc97SJoel Becker goto out; 2385d030cc97SJoel Becker } 2386ccd979bdSMark Fasheh status = -EINVAL; 2387ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2388ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2389ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2390ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2391ccd979bdSMark Fasheh blksz); 2392ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2393ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2394ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2395ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2396ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2397ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2398ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2399ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2400ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2401ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2402ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2403ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2404b0697053SMark Fasheh "found %llu, should be %llu\n", 24051ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2406b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2407ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2408ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2409ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2410ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2411ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2412ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2413ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2414ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2415ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2416ccd979bdSMark Fasheh mlog(ML_ERROR, 2417ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2418ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2419ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2420ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2421ccd979bdSMark Fasheh } else { 2422ccd979bdSMark Fasheh /* found it! */ 2423ccd979bdSMark Fasheh status = 0; 2424ccd979bdSMark Fasheh } 2425ccd979bdSMark Fasheh } 2426ccd979bdSMark Fasheh 2427d030cc97SJoel Becker out: 2428c1e8d35eSTao Ma if (status && status != -EAGAIN) 2429c1e8d35eSTao Ma mlog_errno(status); 2430ccd979bdSMark Fasheh return status; 2431ccd979bdSMark Fasheh } 2432ccd979bdSMark Fasheh 2433ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2434ccd979bdSMark Fasheh { 2435bddb8eb3SDenis Cheng int status; 2436ccd979bdSMark Fasheh int dirty; 2437c271c5c2SSunil Mushran int local; 2438ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2439ccd979bdSMark Fasheh * recover 2440ccd979bdSMark Fasheh * ourselves. */ 2441ccd979bdSMark Fasheh 2442ccd979bdSMark Fasheh /* Init our journal object. */ 2443ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2444ccd979bdSMark Fasheh if (status < 0) { 2445ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2446ccd979bdSMark Fasheh goto finally; 2447ccd979bdSMark Fasheh } 2448ccd979bdSMark Fasheh 24493bdb8efdSPatrick J. LoPresti /* Now that journal has been initialized, check to make sure 24503bdb8efdSPatrick J. LoPresti entire volume is addressable. */ 24513bdb8efdSPatrick J. LoPresti status = ocfs2_journal_addressable(osb); 24523bdb8efdSPatrick J. LoPresti if (status) 24533bdb8efdSPatrick J. LoPresti goto finally; 24543bdb8efdSPatrick J. LoPresti 2455ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2456ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2457ccd979bdSMark Fasheh * dirty work for us :) */ 2458ccd979bdSMark Fasheh if (!dirty) { 2459ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2460ccd979bdSMark Fasheh if (status < 0) { 2461ccd979bdSMark Fasheh mlog_errno(status); 2462ccd979bdSMark Fasheh goto finally; 2463ccd979bdSMark Fasheh } 2464ccd979bdSMark Fasheh } else { 2465ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2466ccd979bdSMark Fasheh "recovering volume.\n"); 2467ccd979bdSMark Fasheh } 2468ccd979bdSMark Fasheh 2469c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2470c271c5c2SSunil Mushran 2471ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2472539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 247301af4820SWengang Wang if (status < 0) { 247401af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 247501af4820SWengang Wang goto finally; 247601af4820SWengang Wang } 2477ccd979bdSMark Fasheh 2478ccd979bdSMark Fasheh if (dirty) { 2479ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2480ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2481ccd979bdSMark Fasheh osb->slot_num, 2482ccd979bdSMark Fasheh &local_alloc); 2483ccd979bdSMark Fasheh if (status < 0) { 2484ccd979bdSMark Fasheh mlog_errno(status); 2485ccd979bdSMark Fasheh goto finally; 2486ccd979bdSMark Fasheh } 2487ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2488ccd979bdSMark Fasheh * ourselves as mounted. */ 2489ccd979bdSMark Fasheh } 2490ccd979bdSMark Fasheh 2491ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2492ccd979bdSMark Fasheh if (status < 0) { 2493ccd979bdSMark Fasheh mlog_errno(status); 2494ccd979bdSMark Fasheh goto finally; 2495ccd979bdSMark Fasheh } 2496ccd979bdSMark Fasheh 2497ccd979bdSMark Fasheh if (dirty) { 2498ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2499ccd979bdSMark Fasheh * rest of the volume. */ 2500ccd979bdSMark Fasheh osb->dirty = 1; 2501ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2502ccd979bdSMark Fasheh local_alloc = NULL; 2503ccd979bdSMark Fasheh } 2504ccd979bdSMark Fasheh 2505ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2506ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2507ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2508ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 25099140db04SSrinivas Eeda if (status < 0) { 25109140db04SSrinivas Eeda mlog_errno(status); 25119140db04SSrinivas Eeda goto finally; 25129140db04SSrinivas Eeda } 25139140db04SSrinivas Eeda 25149140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2515ccd979bdSMark Fasheh if (status < 0) 2516ccd979bdSMark Fasheh mlog_errno(status); 2517ccd979bdSMark Fasheh 2518ccd979bdSMark Fasheh finally: 2519ccd979bdSMark Fasheh if (local_alloc) 2520ccd979bdSMark Fasheh kfree(local_alloc); 2521ccd979bdSMark Fasheh 2522c1e8d35eSTao Ma if (status) 2523c1e8d35eSTao Ma mlog_errno(status); 2524ccd979bdSMark Fasheh return status; 2525ccd979bdSMark Fasheh } 2526ccd979bdSMark Fasheh 2527ccd979bdSMark Fasheh /* 2528ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2529ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2530ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2531ccd979bdSMark Fasheh * initialized resources and fileobject. 2532ccd979bdSMark Fasheh */ 2533ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2534ccd979bdSMark Fasheh { 2535ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2536ccd979bdSMark Fasheh 25378e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2538ccd979bdSMark Fasheh 2539b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2540539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2541ccd979bdSMark Fasheh /* FIXME 2542ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2543421f91d2SUwe Kleine-König * allocate osb->journal at the start of ocfs2_initialize_osb(), 2544ccd979bdSMark Fasheh * we free it here. 2545ccd979bdSMark Fasheh */ 2546ccd979bdSMark Fasheh kfree(osb->journal); 2547ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2548ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2549ccd979bdSMark Fasheh kfree(osb->uuid_str); 2550ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2551ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2552ccd979bdSMark Fasheh } 2553ccd979bdSMark Fasheh 2554ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2555ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2556ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2557ccd979bdSMark Fasheh { 2558ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2559ccd979bdSMark Fasheh 2560ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2561ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2562ccd979bdSMark Fasheh sb->s_id); 2563ccd979bdSMark Fasheh 2564ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2565ccd979bdSMark Fasheh 2566ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2567ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2568ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2569ccd979bdSMark Fasheh return; 2570ccd979bdSMark Fasheh 2571ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2572ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2573ccd979bdSMark Fasheh "system is unmounted.\n"); 2574ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2575ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2576ccd979bdSMark Fasheh } 2577ccd979bdSMark Fasheh 2578ccd979bdSMark Fasheh static char error_buf[1024]; 2579ccd979bdSMark Fasheh 2580ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2581ccd979bdSMark Fasheh const char *function, 2582ccd979bdSMark Fasheh const char *fmt, ...) 2583ccd979bdSMark Fasheh { 2584ccd979bdSMark Fasheh va_list args; 2585ccd979bdSMark Fasheh 2586ccd979bdSMark Fasheh va_start(args, fmt); 25874a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2588ccd979bdSMark Fasheh va_end(args); 2589ccd979bdSMark Fasheh 2590ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2591ccd979bdSMark Fasheh * function the error came from. */ 2592ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2593ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2594ccd979bdSMark Fasheh 2595ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2596ccd979bdSMark Fasheh } 2597ccd979bdSMark Fasheh 2598ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2599ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2600ccd979bdSMark Fasheh * etc. */ 2601ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2602ccd979bdSMark Fasheh const char *function, 2603ccd979bdSMark Fasheh const char *fmt, ...) 2604ccd979bdSMark Fasheh { 2605ccd979bdSMark Fasheh va_list args; 2606ccd979bdSMark Fasheh 2607ccd979bdSMark Fasheh va_start(args, fmt); 26084a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2609ccd979bdSMark Fasheh va_end(args); 2610ccd979bdSMark Fasheh 2611ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2612ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2613ccd979bdSMark Fasheh 2614ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2615ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2616ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2617ccd979bdSMark Fasheh * errors. 2618ccd979bdSMark Fasheh * 2619ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2620ccd979bdSMark Fasheh * that our slot needs recovery. */ 2621ccd979bdSMark Fasheh 2622ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2623ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2624ccd979bdSMark Fasheh * here. */ 2625a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2626ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2627ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2628ccd979bdSMark Fasheh } 2629ccd979bdSMark Fasheh 2630e4b963f1SJoel Becker /* 2631e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2632e4b963f1SJoel Becker * when SIG_* is wrong. 2633e4b963f1SJoel Becker */ 2634e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2635e4b963f1SJoel Becker { 2636e4b963f1SJoel Becker int rc; 2637e4b963f1SJoel Becker sigset_t blocked; 2638e4b963f1SJoel Becker 2639e4b963f1SJoel Becker sigfillset(&blocked); 2640e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2641e4b963f1SJoel Becker BUG_ON(rc); 2642e4b963f1SJoel Becker } 2643e4b963f1SJoel Becker 2644e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2645e4b963f1SJoel Becker { 2646e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2647e4b963f1SJoel Becker BUG_ON(rc); 2648e4b963f1SJoel Becker } 2649e4b963f1SJoel Becker 2650ccd979bdSMark Fasheh module_init(ocfs2_init); 2651ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2652