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> 45f361bf4aSIngo Molnar #include <linux/signal.h> 46ccd979bdSMark Fasheh 4780a9a84dSWengang Wang #define CREATE_TRACE_POINTS 4880a9a84dSWengang Wang #include "ocfs2_trace.h" 4980a9a84dSWengang Wang 50ccd979bdSMark Fasheh #include <cluster/masklog.h> 51ccd979bdSMark Fasheh 52ccd979bdSMark Fasheh #include "ocfs2.h" 53ccd979bdSMark Fasheh 54ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 55ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 56ccd979bdSMark Fasheh 57ccd979bdSMark Fasheh #include "alloc.h" 58a11f7e63SMark Fasheh #include "aops.h" 59d030cc97SJoel Becker #include "blockcheck.h" 60ccd979bdSMark Fasheh #include "dlmglue.h" 61ccd979bdSMark Fasheh #include "export.h" 62ccd979bdSMark Fasheh #include "extent_map.h" 63ccd979bdSMark Fasheh #include "heartbeat.h" 64ccd979bdSMark Fasheh #include "inode.h" 65ccd979bdSMark Fasheh #include "journal.h" 66ccd979bdSMark Fasheh #include "localalloc.h" 67ccd979bdSMark Fasheh #include "namei.h" 68ccd979bdSMark Fasheh #include "slot_map.h" 69ccd979bdSMark Fasheh #include "super.h" 70ccd979bdSMark Fasheh #include "sysfile.h" 71ccd979bdSMark Fasheh #include "uptodate.h" 72cf1d6c76STiger Yang #include "xattr.h" 739e33d69fSJan Kara #include "quota.h" 74374a263eSTao Ma #include "refcounttree.h" 75b89c5428STiger Yang #include "suballoc.h" 76ccd979bdSMark Fasheh 77ccd979bdSMark Fasheh #include "buffer_head_io.h" 78a849d468SGang He #include "filecheck.h" 79ccd979bdSMark Fasheh 801a5c4e2aSFabian Frederick static struct kmem_cache *ocfs2_inode_cachep; 819e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 829e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 83ccd979bdSMark Fasheh 841a5c4e2aSFabian Frederick static struct dentry *ocfs2_debugfs_root; 85ccd979bdSMark Fasheh 86ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 87ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 88ff8fb335SGoldwyn Rodrigues MODULE_DESCRIPTION("OCFS2 cluster file system"); 89ccd979bdSMark Fasheh 90c0123adeSTiger Yang struct mount_options 91c0123adeSTiger Yang { 92d147b3d6SMark Fasheh unsigned long commit_interval; 93c0123adeSTiger Yang unsigned long mount_opt; 94c0123adeSTiger Yang unsigned int atime_quantum; 95c0123adeSTiger Yang signed short slot; 9673c8a800SMark Fasheh int localalloc_opt; 97d02f00ccSMark Fasheh unsigned int resv_level; 9883f92318SMark Fasheh int dir_resv_level; 99b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 100c0123adeSTiger Yang }; 101c0123adeSTiger Yang 102ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 103c0123adeSTiger Yang struct mount_options *mopt, 104baf4661aSSunil Mushran int is_remount); 1055297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 1065297aad8SJan Kara struct mount_options *options); 10734c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root); 108ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 109ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 110ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 111ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 112ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 113ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 114ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 115ccd979bdSMark Fasheh 116726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 117ccd979bdSMark Fasheh 118ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 119ccd979bdSMark Fasheh 120ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 121ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 122bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 123ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 124ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 125ccd979bdSMark Fasheh struct buffer_head *bh, 12673be192bSJoel Becker u32 sectsize, 12773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 128ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 129ccd979bdSMark Fasheh struct buffer_head *bh, 13073be192bSJoel Becker int sector_size, 13173be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 132ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 133ccd979bdSMark Fasheh struct buffer_head **bh, 134ccd979bdSMark Fasheh int block, 135ccd979bdSMark Fasheh int sect_size); 136ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 137ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 13819ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 13919ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 14019ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 141ccd979bdSMark Fasheh 1421c92ec67SJan Kara static struct dquot **ocfs2_get_dquots(struct inode *inode) 1431c92ec67SJan Kara { 1441c92ec67SJan Kara return OCFS2_I(inode)->i_dquot; 1451c92ec67SJan Kara } 1461c92ec67SJan Kara 147ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 148ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 149ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 150ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 151ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 152066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 153ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 154ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 155ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 156d550071cSSunil Mushran .show_options = ocfs2_show_options, 1579e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1589e33d69fSJan Kara .quota_write = ocfs2_quota_write, 1591c92ec67SJan Kara .get_dquots = ocfs2_get_dquots, 160ccd979bdSMark Fasheh }; 161ccd979bdSMark Fasheh 162ccd979bdSMark Fasheh enum { 163ccd979bdSMark Fasheh Opt_barrier, 164ccd979bdSMark Fasheh Opt_err_panic, 165ccd979bdSMark Fasheh Opt_err_ro, 166ccd979bdSMark Fasheh Opt_intr, 167ccd979bdSMark Fasheh Opt_nointr, 168ccd979bdSMark Fasheh Opt_hb_none, 169ccd979bdSMark Fasheh Opt_hb_local, 1702c442719SSunil Mushran Opt_hb_global, 171ccd979bdSMark Fasheh Opt_data_ordered, 172ccd979bdSMark Fasheh Opt_data_writeback, 1737f1a37e3STiger Yang Opt_atime_quantum, 174baf4661aSSunil Mushran Opt_slot, 175d147b3d6SMark Fasheh Opt_commit, 1762fbe8d1eSSunil Mushran Opt_localalloc, 17753fc622bSMark Fasheh Opt_localflocks, 178b61817e1SJoel Becker Opt_stack, 179cf1d6c76STiger Yang Opt_user_xattr, 180cf1d6c76STiger Yang Opt_nouser_xattr, 18112462f1dSJoel Becker Opt_inode64, 182a68979b8STiger Yang Opt_acl, 183a68979b8STiger Yang Opt_noacl, 18419ece546SJan Kara Opt_usrquota, 18519ece546SJan Kara Opt_grpquota, 1867bdb0d18STristan Ye Opt_coherency_buffered, 1877bdb0d18STristan Ye Opt_coherency_full, 188d02f00ccSMark Fasheh Opt_resv_level, 18983f92318SMark Fasheh Opt_dir_resv_level, 1901dfeb768Salex chen Opt_journal_async_commit, 1917d0fb914SGoldwyn Rodrigues Opt_err_cont, 192ccd979bdSMark Fasheh Opt_err, 193ccd979bdSMark Fasheh }; 194ccd979bdSMark Fasheh 195a447c093SSteven Whitehouse static const match_table_t tokens = { 196ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 197ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 198ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 199ccd979bdSMark Fasheh {Opt_intr, "intr"}, 200ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 201ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 202ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 2032c442719SSunil Mushran {Opt_hb_global, OCFS2_HB_GLOBAL}, 204ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 205ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 2067f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 207baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 208d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 2092fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 21053fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 211b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 212cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 213cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 21412462f1dSJoel Becker {Opt_inode64, "inode64"}, 215a68979b8STiger Yang {Opt_acl, "acl"}, 216a68979b8STiger Yang {Opt_noacl, "noacl"}, 21719ece546SJan Kara {Opt_usrquota, "usrquota"}, 21819ece546SJan Kara {Opt_grpquota, "grpquota"}, 2197bdb0d18STristan Ye {Opt_coherency_buffered, "coherency=buffered"}, 2207bdb0d18STristan Ye {Opt_coherency_full, "coherency=full"}, 221d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 22283f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 2231dfeb768Salex chen {Opt_journal_async_commit, "journal_async_commit"}, 2247d0fb914SGoldwyn Rodrigues {Opt_err_cont, "errors=continue"}, 225ccd979bdSMark Fasheh {Opt_err, NULL} 226ccd979bdSMark Fasheh }; 227ccd979bdSMark Fasheh 22850397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 22950397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 23050397507SSunil Mushran { 23150397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 23250397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 233df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 234df152c24SSunil Mushran int i, out = 0; 235bfd97a03Sjiangyiwen unsigned long flags; 23650397507SSunil Mushran 23750397507SSunil Mushran out += snprintf(buf + out, len - out, 23850397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 23950397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 24050397507SSunil Mushran osb->fs_generation, osb->vol_label); 24150397507SSunil Mushran 24250397507SSunil Mushran out += snprintf(buf + out, len - out, 24350397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 24450397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 24550397507SSunil Mushran 24650397507SSunil Mushran out += snprintf(buf + out, len - out, 24750397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 24850397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 24950397507SSunil Mushran 25050397507SSunil Mushran out += snprintf(buf + out, len - out, 25150397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 25250397507SSunil Mushran "ROcompat: 0x%X\n", 25350397507SSunil Mushran "Features", osb->s_feature_compat, 25450397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 25550397507SSunil Mushran 25650397507SSunil Mushran out += snprintf(buf + out, len - out, 25750397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 25850397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 25950397507SSunil Mushran 260c3d38840SSunil Mushran if (cconn) { 26150397507SSunil Mushran out += snprintf(buf + out, len - out, 262c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 263c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 26450397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 26550397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 26650397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 267c3d38840SSunil Mushran cconn->cc_version.pv_major, 268c3d38840SSunil Mushran cconn->cc_version.pv_minor); 269c3d38840SSunil Mushran } 27050397507SSunil Mushran 271bfd97a03Sjiangyiwen spin_lock_irqsave(&osb->dc_task_lock, flags); 27250397507SSunil Mushran out += snprintf(buf + out, len - out, 27350397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 27450397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 275c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 276c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 277c3d38840SSunil Mushran osb->dc_work_sequence); 278bfd97a03Sjiangyiwen spin_unlock_irqrestore(&osb->dc_task_lock, flags); 27950397507SSunil Mushran 28050397507SSunil Mushran spin_lock(&osb->osb_lock); 28150397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 28250397507SSunil Mushran "Recovery", 28350397507SSunil Mushran (osb->recovery_thread_task ? 28450397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 28550397507SSunil Mushran if (rm->rm_used == 0) 28650397507SSunil Mushran out += snprintf(buf + out, len - out, " None\n"); 28750397507SSunil Mushran else { 28850397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 28950397507SSunil Mushran out += snprintf(buf + out, len - out, " %d", 29050397507SSunil Mushran rm->rm_entries[i]); 29150397507SSunil Mushran out += snprintf(buf + out, len - out, "\n"); 29250397507SSunil Mushran } 29350397507SSunil Mushran spin_unlock(&osb->osb_lock); 29450397507SSunil Mushran 29550397507SSunil Mushran out += snprintf(buf + out, len - out, 2968fa9d17fSGoldwyn Rodrigues "%10s => Pid: %d Interval: %lu\n", "Commit", 297c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 2988fa9d17fSGoldwyn Rodrigues osb->osb_commit_interval); 29950397507SSunil Mushran 30050397507SSunil Mushran out += snprintf(buf + out, len - out, 301c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 30250397507SSunil Mushran "Journal", osb->journal->j_state, 303c3d38840SSunil Mushran osb->journal->j_trans_id, 304c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 30550397507SSunil Mushran 30650397507SSunil Mushran out += snprintf(buf + out, len - out, 30750397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 30850397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 30950397507SSunil Mushran "Stats", 31050397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 31150397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 31250397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 31350397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 31450397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 31550397507SSunil Mushran 31650397507SSunil Mushran out += snprintf(buf + out, len - out, 31750397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 31850397507SSunil Mushran "Default: %u bits\n", 31950397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 32050397507SSunil Mushran (unsigned long long)osb->la_last_gd, 32150397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 32250397507SSunil Mushran 32350397507SSunil Mushran spin_lock(&osb->osb_lock); 32450397507SSunil Mushran out += snprintf(buf + out, len - out, 325b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 326b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 32750397507SSunil Mushran osb->s_inode_steal_slot, 328b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 329b89c5428STiger Yang osb->s_meta_steal_slot, 330b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 33150397507SSunil Mushran spin_unlock(&osb->osb_lock); 33250397507SSunil Mushran 333df152c24SSunil Mushran out += snprintf(buf + out, len - out, "OrphanScan => "); 334df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Local: %u Global: %u ", 335df152c24SSunil Mushran os->os_count, os->os_seqno); 336df152c24SSunil Mushran out += snprintf(buf + out, len - out, " Last Scan: "); 337df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 338df152c24SSunil Mushran out += snprintf(buf + out, len - out, "Disabled\n"); 339df152c24SSunil Mushran else 340df152c24SSunil Mushran out += snprintf(buf + out, len - out, "%lu seconds ago\n", 341395627b0SDeepa Dinamani (unsigned long)(ktime_get_seconds() - os->os_scantime)); 342df152c24SSunil Mushran 34350397507SSunil Mushran out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", 34450397507SSunil Mushran "Slots", "Num", "RecoGen"); 34550397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 34650397507SSunil Mushran out += snprintf(buf + out, len - out, 34750397507SSunil Mushran "%10s %c %3d %10d\n", 34850397507SSunil Mushran " ", 34950397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 35050397507SSunil Mushran i, osb->slot_recovery_generations[i]); 35150397507SSunil Mushran } 35250397507SSunil Mushran 35350397507SSunil Mushran return out; 35450397507SSunil Mushran } 35550397507SSunil Mushran 35650397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 35750397507SSunil Mushran { 35850397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 35950397507SSunil Mushran char *buf = NULL; 36050397507SSunil Mushran 36150397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 36250397507SSunil Mushran if (!buf) 36350397507SSunil Mushran goto bail; 36450397507SSunil Mushran 36550397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 36650397507SSunil Mushran 36750397507SSunil Mushran file->private_data = buf; 36850397507SSunil Mushran 36950397507SSunil Mushran return 0; 37050397507SSunil Mushran bail: 37150397507SSunil Mushran return -ENOMEM; 37250397507SSunil Mushran } 37350397507SSunil Mushran 37450397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 37550397507SSunil Mushran { 37650397507SSunil Mushran kfree(file->private_data); 37750397507SSunil Mushran return 0; 37850397507SSunil Mushran } 37950397507SSunil Mushran 38050397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 38150397507SSunil Mushran size_t nbytes, loff_t *ppos) 38250397507SSunil Mushran { 38350397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 38450397507SSunil Mushran i_size_read(file->f_mapping->host)); 38550397507SSunil Mushran } 38650397507SSunil Mushran #else 38750397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 38850397507SSunil Mushran { 38950397507SSunil Mushran return 0; 39050397507SSunil Mushran } 39150397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 39250397507SSunil Mushran { 39350397507SSunil Mushran return 0; 39450397507SSunil Mushran } 39550397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 39650397507SSunil Mushran size_t nbytes, loff_t *ppos) 39750397507SSunil Mushran { 39850397507SSunil Mushran return 0; 39950397507SSunil Mushran } 40050397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 40150397507SSunil Mushran 402828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 40350397507SSunil Mushran .open = ocfs2_osb_debug_open, 40450397507SSunil Mushran .release = ocfs2_debug_release, 40550397507SSunil Mushran .read = ocfs2_debug_read, 40650397507SSunil Mushran .llseek = generic_file_llseek, 40750397507SSunil Mushran }; 40850397507SSunil Mushran 409ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 410ccd979bdSMark Fasheh { 411bddb8eb3SDenis Cheng int status; 412ccd979bdSMark Fasheh tid_t target; 413ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 414ccd979bdSMark Fasheh 415ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 416ccd979bdSMark Fasheh return -EROFS; 417ccd979bdSMark Fasheh 418ccd979bdSMark Fasheh if (wait) { 419ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 420ccd979bdSMark Fasheh if (status < 0) 421ccd979bdSMark Fasheh mlog_errno(status); 422ccd979bdSMark Fasheh } else { 423ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 424ccd979bdSMark Fasheh } 425ccd979bdSMark Fasheh 4261119d3c0Spiaojun if (jbd2_journal_start_commit(osb->journal->j_journal, 4272b4e30fbSJoel Becker &target)) { 428ccd979bdSMark Fasheh if (wait) 4291119d3c0Spiaojun jbd2_log_wait_commit(osb->journal->j_journal, 430ccd979bdSMark Fasheh target); 431ccd979bdSMark Fasheh } 432ccd979bdSMark Fasheh return 0; 433ccd979bdSMark Fasheh } 434ccd979bdSMark Fasheh 4351a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4361a224ad1SJan Kara { 4371a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4381a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4391a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4401a224ad1SJan Kara return 0; 4411a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4421a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4431a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4441a224ad1SJan Kara return 0; 4451a224ad1SJan Kara return 1; 4461a224ad1SJan Kara } 4471a224ad1SJan Kara 448ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 449ccd979bdSMark Fasheh { 450ccd979bdSMark Fasheh struct inode *new = NULL; 451ccd979bdSMark Fasheh int status = 0; 452ccd979bdSMark Fasheh int i; 453ccd979bdSMark Fasheh 4545fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 455ccd979bdSMark Fasheh if (IS_ERR(new)) { 456ccd979bdSMark Fasheh status = PTR_ERR(new); 457ccd979bdSMark Fasheh mlog_errno(status); 458ccd979bdSMark Fasheh goto bail; 459ccd979bdSMark Fasheh } 460ccd979bdSMark Fasheh osb->root_inode = new; 461ccd979bdSMark Fasheh 4625fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 463ccd979bdSMark Fasheh if (IS_ERR(new)) { 464ccd979bdSMark Fasheh status = PTR_ERR(new); 465ccd979bdSMark Fasheh mlog_errno(status); 466ccd979bdSMark Fasheh goto bail; 467ccd979bdSMark Fasheh } 468ccd979bdSMark Fasheh osb->sys_root_inode = new; 469ccd979bdSMark Fasheh 470ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 471ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4721a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4731a224ad1SJan Kara continue; 474ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 475ccd979bdSMark Fasheh if (!new) { 476ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 477025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 478ccd979bdSMark Fasheh mlog_errno(status); 479ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 480ccd979bdSMark Fasheh "possibly corrupt fs?", i); 481ccd979bdSMark Fasheh goto bail; 482ccd979bdSMark Fasheh } 483ccd979bdSMark Fasheh // the array now has one ref, so drop this one 484ccd979bdSMark Fasheh iput(new); 485ccd979bdSMark Fasheh } 486ccd979bdSMark Fasheh 487ccd979bdSMark Fasheh bail: 488c1e8d35eSTao Ma if (status) 489c1e8d35eSTao Ma mlog_errno(status); 490ccd979bdSMark Fasheh return status; 491ccd979bdSMark Fasheh } 492ccd979bdSMark Fasheh 493ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 494ccd979bdSMark Fasheh { 495ccd979bdSMark Fasheh struct inode *new = NULL; 496ccd979bdSMark Fasheh int status = 0; 497ccd979bdSMark Fasheh int i; 498ccd979bdSMark Fasheh 499ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 500ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 501ccd979bdSMark Fasheh i++) { 5021a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 5031a224ad1SJan Kara continue; 504ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 505ccd979bdSMark Fasheh if (!new) { 506ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 507025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 508ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 509ccd979bdSMark Fasheh status, i, osb->slot_num); 510ccd979bdSMark Fasheh goto bail; 511ccd979bdSMark Fasheh } 512ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 513ccd979bdSMark Fasheh iput(new); 514ccd979bdSMark Fasheh } 515ccd979bdSMark Fasheh 516ccd979bdSMark Fasheh bail: 517c1e8d35eSTao Ma if (status) 518c1e8d35eSTao Ma mlog_errno(status); 519ccd979bdSMark Fasheh return status; 520ccd979bdSMark Fasheh } 521ccd979bdSMark Fasheh 522bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 523ccd979bdSMark Fasheh { 524bddb8eb3SDenis Cheng int i; 525ccd979bdSMark Fasheh struct inode *inode; 526ccd979bdSMark Fasheh 527b4d693fcSTao Ma for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { 528b4d693fcSTao Ma inode = osb->global_system_inodes[i]; 529ccd979bdSMark Fasheh if (inode) { 530ccd979bdSMark Fasheh iput(inode); 531b4d693fcSTao Ma osb->global_system_inodes[i] = NULL; 532ccd979bdSMark Fasheh } 533ccd979bdSMark Fasheh } 534ccd979bdSMark Fasheh 535ccd979bdSMark Fasheh inode = osb->sys_root_inode; 536ccd979bdSMark Fasheh if (inode) { 537ccd979bdSMark Fasheh iput(inode); 538ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 539ccd979bdSMark Fasheh } 540ccd979bdSMark Fasheh 541ccd979bdSMark Fasheh inode = osb->root_inode; 542ccd979bdSMark Fasheh if (inode) { 543ccd979bdSMark Fasheh iput(inode); 544ccd979bdSMark Fasheh osb->root_inode = NULL; 545ccd979bdSMark Fasheh } 546ccd979bdSMark Fasheh 547b4d693fcSTao Ma if (!osb->local_system_inodes) 548c1e8d35eSTao Ma return; 549b4d693fcSTao Ma 550b4d693fcSTao Ma for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { 551b4d693fcSTao Ma if (osb->local_system_inodes[i]) { 552b4d693fcSTao Ma iput(osb->local_system_inodes[i]); 553b4d693fcSTao Ma osb->local_system_inodes[i] = NULL; 554b4d693fcSTao Ma } 555b4d693fcSTao Ma } 556b4d693fcSTao Ma 557b4d693fcSTao Ma kfree(osb->local_system_inodes); 558b4d693fcSTao Ma osb->local_system_inodes = NULL; 559ccd979bdSMark Fasheh } 560ccd979bdSMark Fasheh 561ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 562ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 563ccd979bdSMark Fasheh { 564ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 565ccd979bdSMark Fasheh 566e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 567ccd979bdSMark Fasheh if (!oi) 568ccd979bdSMark Fasheh return NULL; 569ccd979bdSMark Fasheh 5702931cdcbSDarrick J. Wong oi->i_sync_tid = 0; 5712931cdcbSDarrick J. Wong oi->i_datasync_tid = 0; 5721c92ec67SJan Kara memset(&oi->i_dquot, 0, sizeof(oi->i_dquot)); 5732931cdcbSDarrick J. Wong 5742b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 575ccd979bdSMark Fasheh return &oi->vfs_inode; 576ccd979bdSMark Fasheh } 577ccd979bdSMark Fasheh 578fa0d7e3dSNick Piggin static void ocfs2_i_callback(struct rcu_head *head) 579fa0d7e3dSNick Piggin { 580fa0d7e3dSNick Piggin struct inode *inode = container_of(head, struct inode, i_rcu); 581fa0d7e3dSNick Piggin kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 582fa0d7e3dSNick Piggin } 583fa0d7e3dSNick Piggin 584ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 585ccd979bdSMark Fasheh { 586fa0d7e3dSNick Piggin call_rcu(&inode->i_rcu, ocfs2_i_callback); 587ccd979bdSMark Fasheh } 588ccd979bdSMark Fasheh 5895a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5905a254031SMark Fasheh unsigned int cbits) 591ccd979bdSMark Fasheh { 5925a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5935a254031SMark Fasheh unsigned int trim = bytes; 5945a254031SMark Fasheh unsigned int bitshift = 32; 595ccd979bdSMark Fasheh 5965a254031SMark Fasheh /* 5975a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5985a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5995a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 600ccd979bdSMark Fasheh */ 601ccd979bdSMark Fasheh 602ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 60390c699a9SBartlomiej Zolnierkiewicz # if defined(CONFIG_LBDAF) 6042ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 6055a254031SMark Fasheh /* 6065a254031SMark Fasheh * We might be limited by page cache size. 6075a254031SMark Fasheh */ 60809cbfeafSKirill A. Shutemov if (bytes > PAGE_SIZE) { 60909cbfeafSKirill A. Shutemov bytes = PAGE_SIZE; 6105a254031SMark Fasheh trim = 1; 6115a254031SMark Fasheh /* 6125a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 6135a254031SMark Fasheh * MAX_LFS_FILESIZE 6145a254031SMark Fasheh */ 6155a254031SMark Fasheh bitshift = 31; 6165a254031SMark Fasheh } 617ccd979bdSMark Fasheh # else 6185a254031SMark Fasheh /* 6195a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 6205a254031SMark Fasheh * that's what we expose to the VFS. 6215a254031SMark Fasheh */ 6225a254031SMark Fasheh bytes = 1 << bbits; 6235a254031SMark Fasheh trim = 1; 6245a254031SMark Fasheh bitshift = 31; 625ccd979bdSMark Fasheh # endif 626ccd979bdSMark Fasheh #endif 627ccd979bdSMark Fasheh 6285a254031SMark Fasheh /* 6295a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 6305a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 6315a254031SMark Fasheh * an extent start is at the max offset. 6325a254031SMark Fasheh */ 6335a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 634ccd979bdSMark Fasheh } 635ccd979bdSMark Fasheh 636ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 637ccd979bdSMark Fasheh { 638ccd979bdSMark Fasheh int incompat_features; 639ccd979bdSMark Fasheh int ret = 0; 640c0123adeSTiger Yang struct mount_options parsed_options; 641ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 6422c442719SSunil Mushran u32 tmp; 643ccd979bdSMark Fasheh 64402b9984dSTheodore Ts'o sync_filesystem(sb); 64502b9984dSTheodore Ts'o 6465297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6475297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 648ccd979bdSMark Fasheh ret = -EINVAL; 649ccd979bdSMark Fasheh goto out; 650ccd979bdSMark Fasheh } 651ccd979bdSMark Fasheh 6522c442719SSunil Mushran tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | 6532c442719SSunil Mushran OCFS2_MOUNT_HB_NONE; 6542c442719SSunil Mushran if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 655ccd979bdSMark Fasheh ret = -EINVAL; 656ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 657ccd979bdSMark Fasheh goto out; 658ccd979bdSMark Fasheh } 659ccd979bdSMark Fasheh 660ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 661c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 662ccd979bdSMark Fasheh ret = -EINVAL; 663ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 664ccd979bdSMark Fasheh goto out; 665ccd979bdSMark Fasheh } 666ccd979bdSMark Fasheh 66712462f1dSJoel Becker /* Probably don't want this on remount; it might 66812462f1dSJoel Becker * mess with other nodes */ 66912462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 67012462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 67112462f1dSJoel Becker ret = -EINVAL; 67212462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 67312462f1dSJoel Becker goto out; 67412462f1dSJoel Becker } 67512462f1dSJoel Becker 676ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 6771751e8a6SLinus Torvalds if ((bool)(*flags & SB_RDONLY) != sb_rdonly(sb)) { 67819ece546SJan Kara /* Disable quota accounting before remounting RO */ 6791751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 68019ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 68119ece546SJan Kara if (ret < 0) 68219ece546SJan Kara goto out; 68319ece546SJan Kara } 684ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 685ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 686ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 687ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 688ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 689ccd979bdSMark Fasheh ret = -EROFS; 690ccd979bdSMark Fasheh goto unlock_osb; 691ccd979bdSMark Fasheh } 692ccd979bdSMark Fasheh 6931751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 6941751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 695ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 696ccd979bdSMark Fasheh } else { 697ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 698ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 699ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 700ccd979bdSMark Fasheh ret = -EROFS; 701ccd979bdSMark Fasheh goto unlock_osb; 702ccd979bdSMark Fasheh } 703ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 704ccd979bdSMark Fasheh if (incompat_features) { 705ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 706ccd979bdSMark Fasheh "of unsupported optional features " 707ccd979bdSMark Fasheh "(%x).\n", incompat_features); 708ccd979bdSMark Fasheh ret = -EINVAL; 709ccd979bdSMark Fasheh goto unlock_osb; 710ccd979bdSMark Fasheh } 7111751e8a6SLinus Torvalds sb->s_flags &= ~SB_RDONLY; 712ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 713ccd979bdSMark Fasheh } 71432a42d39STao Ma trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); 715ccd979bdSMark Fasheh unlock_osb: 716ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 71719ece546SJan Kara /* Enable quota accounting after remounting RW */ 7181751e8a6SLinus Torvalds if (!ret && !(*flags & SB_RDONLY)) { 71919ece546SJan Kara if (sb_any_quota_suspended(sb)) 72019ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 72119ece546SJan Kara else 72219ece546SJan Kara ret = ocfs2_enable_quotas(osb); 72319ece546SJan Kara if (ret < 0) { 72419ece546SJan Kara /* Return back changes... */ 72519ece546SJan Kara spin_lock(&osb->osb_lock); 7261751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 72719ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 72819ece546SJan Kara spin_unlock(&osb->osb_lock); 72919ece546SJan Kara goto out; 73019ece546SJan Kara } 73119ece546SJan Kara } 732ccd979bdSMark Fasheh } 733ccd979bdSMark Fasheh 734ccd979bdSMark Fasheh if (!ret) { 735ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 736ccd979bdSMark Fasheh * remount. */ 737c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 738c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 739c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 740d147b3d6SMark Fasheh if (parsed_options.commit_interval) 741d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 742e001e796SMark Fasheh 743e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 744e001e796SMark Fasheh ocfs2_set_journal_params(osb); 74557b09bb5SJan Kara 7461751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | 74757b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 7481751e8a6SLinus Torvalds SB_POSIXACL : 0); 749ccd979bdSMark Fasheh } 750ccd979bdSMark Fasheh out: 751ccd979bdSMark Fasheh return ret; 752ccd979bdSMark Fasheh } 753ccd979bdSMark Fasheh 754ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 755ccd979bdSMark Fasheh struct buffer_head **bh, 75673be192bSJoel Becker int *sector_size, 75773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 758ccd979bdSMark Fasheh { 759bddb8eb3SDenis Cheng int status, tmpstat; 760ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 761ccd979bdSMark Fasheh struct ocfs2_dinode *di; 762ccd979bdSMark Fasheh int blksize; 763ccd979bdSMark Fasheh 764ccd979bdSMark Fasheh *bh = NULL; 765ccd979bdSMark Fasheh 766ccd979bdSMark Fasheh /* may be > 512 */ 767e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 768ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 769ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 770ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 771ccd979bdSMark Fasheh status = -EINVAL; 772ccd979bdSMark Fasheh goto bail; 773ccd979bdSMark Fasheh } 774ccd979bdSMark Fasheh 775ccd979bdSMark Fasheh /* Can this really happen? */ 776ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 777ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 778ccd979bdSMark Fasheh 779ccd979bdSMark Fasheh /* check block zero for old format */ 780ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 781ccd979bdSMark Fasheh if (status < 0) { 782ccd979bdSMark Fasheh mlog_errno(status); 783ccd979bdSMark Fasheh goto bail; 784ccd979bdSMark Fasheh } 785ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 786ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 787ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 788ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 789ccd979bdSMark Fasheh status = -EINVAL; 790ccd979bdSMark Fasheh } 791ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 792ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 793ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 794ccd979bdSMark Fasheh hdr->signature); 795ccd979bdSMark Fasheh status = -EINVAL; 796ccd979bdSMark Fasheh } 797ccd979bdSMark Fasheh brelse(*bh); 798ccd979bdSMark Fasheh *bh = NULL; 799ccd979bdSMark Fasheh if (status < 0) { 800ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 801ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 802ccd979bdSMark Fasheh goto bail; 803ccd979bdSMark Fasheh } 804ccd979bdSMark Fasheh 805ccd979bdSMark Fasheh /* 806ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 807ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 808ccd979bdSMark Fasheh * the minimum clustersize. 809ccd979bdSMark Fasheh */ 810ccd979bdSMark Fasheh status = -EINVAL; 811ccd979bdSMark Fasheh for (blksize = *sector_size; 812ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 813ccd979bdSMark Fasheh blksize <<= 1) { 814ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 815ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 816ccd979bdSMark Fasheh blksize); 817ccd979bdSMark Fasheh if (tmpstat < 0) { 818ccd979bdSMark Fasheh status = tmpstat; 819ccd979bdSMark Fasheh mlog_errno(status); 820fb5cbe9eSJoel Becker break; 821ccd979bdSMark Fasheh } 822ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 82373be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 8241c1d9793SJan Kara spin_lock_init(&stats->b_lock); 825fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 826fb5cbe9eSJoel Becker if (tmpstat < 0) { 827ccd979bdSMark Fasheh brelse(*bh); 828ccd979bdSMark Fasheh *bh = NULL; 829fb5cbe9eSJoel Becker } 830fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 831fb5cbe9eSJoel Becker status = tmpstat; 832ccd979bdSMark Fasheh break; 833ccd979bdSMark Fasheh } 834fb5cbe9eSJoel Becker } 835ccd979bdSMark Fasheh 836ccd979bdSMark Fasheh bail: 837ccd979bdSMark Fasheh return status; 838ccd979bdSMark Fasheh } 839ccd979bdSMark Fasheh 840c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 841c271c5c2SSunil Mushran { 8422c442719SSunil Mushran u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; 8432c442719SSunil Mushran 8442c442719SSunil Mushran if (osb->s_mount_opt & hb_enabled) { 845c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 846c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 847c271c5c2SSunil Mushran "mounted device.\n"); 848c271c5c2SSunil Mushran return -EINVAL; 849c271c5c2SSunil Mushran } 850b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 851b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 852b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 853b61817e1SJoel Becker return -EINVAL; 854b61817e1SJoel Becker } 8552c442719SSunil Mushran if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && 8562c442719SSunil Mushran !ocfs2_cluster_o2cb_global_heartbeat(osb)) || 8572c442719SSunil Mushran ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && 8582c442719SSunil Mushran ocfs2_cluster_o2cb_global_heartbeat(osb))) { 8592c442719SSunil Mushran mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); 8602c442719SSunil Mushran return -EINVAL; 8612c442719SSunil Mushran } 862b61817e1SJoel Becker } 863b61817e1SJoel Becker 8642c442719SSunil Mushran if (!(osb->s_mount_opt & hb_enabled)) { 865b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 866b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 867c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 868c271c5c2SSunil Mushran "a read-write clustered device.\n"); 869c271c5c2SSunil Mushran return -EINVAL; 870c271c5c2SSunil Mushran } 871c271c5c2SSunil Mushran } 872c271c5c2SSunil Mushran 873c271c5c2SSunil Mushran return 0; 874c271c5c2SSunil Mushran } 875c271c5c2SSunil Mushran 876b61817e1SJoel Becker /* 877b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 878b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 879b61817e1SJoel Becker * have passed a stack. 880b61817e1SJoel Becker */ 881b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 882b61817e1SJoel Becker struct mount_options *mopt) 883b61817e1SJoel Becker { 884b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 885b61817e1SJoel Becker mlog(ML_ERROR, 886b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 887b61817e1SJoel Becker "does not support it\n"); 888b61817e1SJoel Becker return -EINVAL; 889b61817e1SJoel Becker } 890b61817e1SJoel Becker 891b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 892b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 893b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 894b61817e1SJoel Becker mlog(ML_ERROR, 895b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 896b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 897b61817e1SJoel Becker mopt->cluster_stack, 898b61817e1SJoel Becker osb->osb_cluster_stack); 899b61817e1SJoel Becker return -EINVAL; 900b61817e1SJoel Becker } 901b61817e1SJoel Becker 902b61817e1SJoel Becker return 0; 903b61817e1SJoel Becker } 904b61817e1SJoel Becker 90519ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 90619ece546SJan Kara { 90719ece546SJan Kara int type; 90819ece546SJan Kara struct super_block *sb = osb->sb; 90952362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 91052362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 91119ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 91219ece546SJan Kara int status = 0; 91319ece546SJan Kara 91452362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 91519ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 91619ece546SJan Kara continue; 91719ece546SJan Kara if (unsuspend) 9180f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 919eea7feb0SJan Kara else { 920eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 921eea7feb0SJan Kara 922eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 923eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 924eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 9250f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 926eea7feb0SJan Kara } 92719ece546SJan Kara if (status < 0) 92819ece546SJan Kara break; 92919ece546SJan Kara } 93019ece546SJan Kara if (status < 0) 93119ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 93219ece546SJan Kara "remount (error = %d).\n", status); 93319ece546SJan Kara return status; 93419ece546SJan Kara } 93519ece546SJan Kara 93619ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 93719ece546SJan Kara { 93852362810SJan Kara struct inode *inode[OCFS2_MAXQUOTAS] = { NULL, NULL }; 93919ece546SJan Kara struct super_block *sb = osb->sb; 94052362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 94152362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 94219ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 94352362810SJan Kara unsigned int ino[OCFS2_MAXQUOTAS] = { 94452362810SJan Kara LOCAL_USER_QUOTA_SYSTEM_INODE, 94519ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 94619ece546SJan Kara int status; 94719ece546SJan Kara int type; 94819ece546SJan Kara 94919ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 95052362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 95119ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 95219ece546SJan Kara continue; 95319ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 95419ece546SJan Kara osb->slot_num); 95519ece546SJan Kara if (!inode[type]) { 95619ece546SJan Kara status = -ENOENT; 95719ece546SJan Kara goto out_quota_off; 95819ece546SJan Kara } 959287a8095SChristoph Hellwig status = dquot_enable(inode[type], type, QFMT_OCFS2, 96019ece546SJan Kara DQUOT_USAGE_ENABLED); 96119ece546SJan Kara if (status < 0) 96219ece546SJan Kara goto out_quota_off; 96319ece546SJan Kara } 96419ece546SJan Kara 96552362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 96619ece546SJan Kara iput(inode[type]); 96719ece546SJan Kara return 0; 96819ece546SJan Kara out_quota_off: 96919ece546SJan Kara ocfs2_disable_quotas(osb); 97052362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 97119ece546SJan Kara iput(inode[type]); 97219ece546SJan Kara mlog_errno(status); 97319ece546SJan Kara return status; 97419ece546SJan Kara } 97519ece546SJan Kara 97619ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 97719ece546SJan Kara { 97819ece546SJan Kara int type; 97919ece546SJan Kara struct inode *inode; 98019ece546SJan Kara struct super_block *sb = osb->sb; 981c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 98219ece546SJan Kara 98319ece546SJan Kara /* We mostly ignore errors in this function because there's not much 98419ece546SJan Kara * we can do when we see them */ 98552362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 98619ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 98719ece546SJan Kara continue; 988c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 989c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 99019ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 99119ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 99219ece546SJan Kara * memory and so they will be automatically synced to global 99319ece546SJan Kara * quota files */ 9940f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 99519ece546SJan Kara DQUOT_LIMITS_ENABLED); 99619ece546SJan Kara if (!inode) 99719ece546SJan Kara continue; 99819ece546SJan Kara iput(inode); 99919ece546SJan Kara } 100019ece546SJan Kara } 100119ece546SJan Kara 1002ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 1003ccd979bdSMark Fasheh { 1004ccd979bdSMark Fasheh struct dentry *root; 1005ccd979bdSMark Fasheh int status, sector_size; 1006c0123adeSTiger Yang struct mount_options parsed_options; 1007ccd979bdSMark Fasheh struct inode *inode = NULL; 1008ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1009ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 101049fa8140SGoldwyn Rodrigues char nodestr[12]; 101173be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 1012ccd979bdSMark Fasheh 101332a42d39STao Ma trace_ocfs2_fill_super(sb, data, silent); 1014ccd979bdSMark Fasheh 1015c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 1016c271c5c2SSunil Mushran status = -EINVAL; 1017c271c5c2SSunil Mushran goto read_super_error; 1018c271c5c2SSunil Mushran } 1019c271c5c2SSunil Mushran 1020ccd979bdSMark Fasheh /* probe for superblock */ 102173be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 1022ccd979bdSMark Fasheh if (status < 0) { 1023ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 1024ccd979bdSMark Fasheh goto read_super_error; 1025ccd979bdSMark Fasheh } 1026ccd979bdSMark Fasheh 102773be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 1028ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1029ccd979bdSMark Fasheh if (status < 0) { 1030ccd979bdSMark Fasheh mlog_errno(status); 1031ccd979bdSMark Fasheh goto read_super_error; 1032ccd979bdSMark Fasheh } 1033ccd979bdSMark Fasheh brelse(bh); 1034ccd979bdSMark Fasheh bh = NULL; 1035a68979b8STiger Yang 10365297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10375297aad8SJan Kara status = -EINVAL; 10385297aad8SJan Kara goto read_super_error; 10395297aad8SJan Kara } 1040c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1041c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1042c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1043d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 104473c8a800SMark Fasheh 104573c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1046d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 104783f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 104883f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 104983f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 105083f92318SMark Fasheh else 105183f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1052ccd979bdSMark Fasheh 1053b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1054b61817e1SJoel Becker if (status) 1055b61817e1SJoel Becker goto read_super_error; 1056b61817e1SJoel Becker 1057ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1058ccd979bdSMark Fasheh 10591751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~(SB_POSIXACL | SB_NOSEC)) | 10601751e8a6SLinus Torvalds ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? SB_POSIXACL : 0); 1061a68979b8STiger Yang 10621751e8a6SLinus Torvalds /* Hard readonly mode only if: bdev_read_only, SB_RDONLY, 1063ccd979bdSMark Fasheh * heartbeat=none */ 1064ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1065bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 1066ccd979bdSMark Fasheh status = -EACCES; 1067ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1068ccd979bdSMark Fasheh "mount was not specified.\n"); 1069ccd979bdSMark Fasheh goto read_super_error; 1070ccd979bdSMark Fasheh } 1071ccd979bdSMark Fasheh 1072ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1073ccd979bdSMark Fasheh * on a readonly device. */ 1074ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1075ccd979bdSMark Fasheh status = -EROFS; 1076ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1077ccd979bdSMark Fasheh "device.\n"); 1078ccd979bdSMark Fasheh goto read_super_error; 1079ccd979bdSMark Fasheh } 1080ccd979bdSMark Fasheh 1081ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1082ccd979bdSMark Fasheh if (status < 0) { 1083ccd979bdSMark Fasheh if (status == -EROFS) 1084ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1085ccd979bdSMark Fasheh "file system, but write access is " 1086ccd979bdSMark Fasheh "unavailable.\n"); 1087ccd979bdSMark Fasheh else 1088ccd979bdSMark Fasheh mlog_errno(status); 1089ccd979bdSMark Fasheh goto read_super_error; 1090ccd979bdSMark Fasheh } 1091ccd979bdSMark Fasheh 1092ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1093ccd979bdSMark Fasheh 1094619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Readonly device (%s) detected. " 1095619c200dSSunil Mushran "Cluster services will not be used for this mount. " 1096619c200dSSunil Mushran "Recovery will be skipped.\n", osb->dev_str); 1097ccd979bdSMark Fasheh } 1098ccd979bdSMark Fasheh 1099ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1100bc98a42cSDavid Howells if (sb_rdonly(sb)) 1101ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1102ccd979bdSMark Fasheh } 1103ccd979bdSMark Fasheh 1104c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1105c271c5c2SSunil Mushran if (status < 0) { 1106c271c5c2SSunil Mushran mlog_errno(status); 1107c271c5c2SSunil Mushran goto read_super_error; 1108c271c5c2SSunil Mushran } 1109c271c5c2SSunil Mushran 1110ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1111ccd979bdSMark Fasheh ocfs2_debugfs_root); 11128f443e23SLinus Torvalds if (!osb->osb_debug_root) { 1113ccd979bdSMark Fasheh status = -EINVAL; 1114ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 1115ccd979bdSMark Fasheh goto read_super_error; 1116ccd979bdSMark Fasheh } 1117ccd979bdSMark Fasheh 111850397507SSunil Mushran osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, 111950397507SSunil Mushran osb->osb_debug_root, 112050397507SSunil Mushran osb, 112150397507SSunil Mushran &ocfs2_osb_debug_fops); 11228f443e23SLinus Torvalds if (!osb->osb_ctxt) { 112350397507SSunil Mushran status = -EINVAL; 112450397507SSunil Mushran mlog_errno(status); 112550397507SSunil Mushran goto read_super_error; 112650397507SSunil Mushran } 112750397507SSunil Mushran 112873be192bSJoel Becker if (ocfs2_meta_ecc(osb)) { 112973be192bSJoel Becker status = ocfs2_blockcheck_stats_debugfs_install( 113073be192bSJoel Becker &osb->osb_ecc_stats, 113173be192bSJoel Becker osb->osb_debug_root); 113273be192bSJoel Becker if (status) { 113373be192bSJoel Becker mlog(ML_ERROR, 113473be192bSJoel Becker "Unable to create blockcheck statistics " 113573be192bSJoel Becker "files\n"); 113673be192bSJoel Becker goto read_super_error; 113773be192bSJoel Becker } 113873be192bSJoel Becker } 113973be192bSJoel Becker 1140ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1141ccd979bdSMark Fasheh if (status < 0) 1142ccd979bdSMark Fasheh goto read_super_error; 1143ccd979bdSMark Fasheh 1144be0d93f0SAl Viro if (osb->root_inode) 1145be0d93f0SAl Viro inode = igrab(osb->root_inode); 1146be0d93f0SAl Viro 1147ccd979bdSMark Fasheh if (!inode) { 1148ccd979bdSMark Fasheh status = -EIO; 1149ccd979bdSMark Fasheh mlog_errno(status); 1150ccd979bdSMark Fasheh goto read_super_error; 1151ccd979bdSMark Fasheh } 1152ccd979bdSMark Fasheh 115348fde701SAl Viro root = d_make_root(inode); 1154ccd979bdSMark Fasheh if (!root) { 1155ccd979bdSMark Fasheh status = -ENOMEM; 1156ccd979bdSMark Fasheh mlog_errno(status); 1157ccd979bdSMark Fasheh goto read_super_error; 1158ccd979bdSMark Fasheh } 1159ccd979bdSMark Fasheh 1160ccd979bdSMark Fasheh sb->s_root = root; 1161ccd979bdSMark Fasheh 1162ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 1163ccd979bdSMark Fasheh 11645f483c4aSGang He osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL, 11655f483c4aSGang He &ocfs2_kset->kobj); 11665f483c4aSGang He if (!osb->osb_dev_kset) { 11675f483c4aSGang He status = -ENOMEM; 11685f483c4aSGang He mlog(ML_ERROR, "Unable to create device kset %s.\n", sb->s_id); 11695f483c4aSGang He goto read_super_error; 11705f483c4aSGang He } 11715f483c4aSGang He 11725f483c4aSGang He /* Create filecheck sysfs related directories/files at 11735f483c4aSGang He * /sys/fs/ocfs2/<devname>/filecheck */ 11745f483c4aSGang He if (ocfs2_filecheck_create_sysfs(osb)) { 11755f483c4aSGang He status = -ENOMEM; 11765f483c4aSGang He mlog(ML_ERROR, "Unable to create filecheck sysfs directory at " 11775f483c4aSGang He "/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id); 11785f483c4aSGang He goto read_super_error; 11795f483c4aSGang He } 11805f483c4aSGang He 1181c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1182c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1183c271c5c2SSunil Mushran else 118419fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1185c271c5c2SSunil Mushran 1186c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1187781ee3e2SSunil Mushran "with %s data mode.\n", 1188c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1189ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1190ccd979bdSMark Fasheh "ordered"); 1191ccd979bdSMark Fasheh 1192ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1193ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1194ccd979bdSMark Fasheh 119519ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 119619ece546SJan Kara * for cluster locks recovery now. That also means that truncation 119719ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 1198bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 119919ece546SJan Kara status = ocfs2_enable_quotas(osb); 120019ece546SJan Kara if (status < 0) { 120119ece546SJan Kara /* We have to err-out specially here because 120219ece546SJan Kara * s_root is already set */ 120319ece546SJan Kara mlog_errno(status); 120419ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 120519ece546SJan Kara wake_up(&osb->osb_mount_event); 120619ece546SJan Kara return status; 120719ece546SJan Kara } 120819ece546SJan Kara } 120919ece546SJan Kara 121019ece546SJan Kara ocfs2_complete_quota_recovery(osb); 121119ece546SJan Kara 121219ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 121319ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 121419ece546SJan Kara wake_up(&osb->osb_mount_event); 121519ece546SJan Kara 1216df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 12178b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1218df152c24SSunil Mushran 1219ccd979bdSMark Fasheh return status; 1220ccd979bdSMark Fasheh 1221ccd979bdSMark Fasheh read_super_error: 1222ccd979bdSMark Fasheh brelse(bh); 1223ccd979bdSMark Fasheh 1224a52370b3SGang He if (status) 1225a52370b3SGang He mlog_errno(status); 1226a52370b3SGang He 1227ccd979bdSMark Fasheh if (osb) { 1228ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1229ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1230ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1231ccd979bdSMark Fasheh } 1232ccd979bdSMark Fasheh 1233ccd979bdSMark Fasheh return status; 1234ccd979bdSMark Fasheh } 1235ccd979bdSMark Fasheh 1236152a0836SAl Viro static struct dentry *ocfs2_mount(struct file_system_type *fs_type, 1237ccd979bdSMark Fasheh int flags, 1238ccd979bdSMark Fasheh const char *dev_name, 1239152a0836SAl Viro void *data) 1240ccd979bdSMark Fasheh { 1241152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); 1242ccd979bdSMark Fasheh } 1243ccd979bdSMark Fasheh 1244ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1245ccd979bdSMark Fasheh .owner = THIS_MODULE, 1246ccd979bdSMark Fasheh .name = "ocfs2", 1247152a0836SAl Viro .mount = ocfs2_mount, 12488ed6b237SGoldwyn Rodrigues .kill_sb = kill_block_super, 12491ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1250ccd979bdSMark Fasheh .next = NULL 1251ccd979bdSMark Fasheh }; 125291417705SEric W. Biederman MODULE_ALIAS_FS("ocfs2"); 1253ccd979bdSMark Fasheh 12545297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12555297aad8SJan Kara struct mount_options *options) 12565297aad8SJan Kara { 12575297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12585297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12595297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12605297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12615297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12625297aad8SJan Kara return 0; 12635297aad8SJan Kara } 12645297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12655297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12665297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12675297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12685297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12695297aad8SJan Kara return 0; 12705297aad8SJan Kara } 12715297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12725297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12735297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12745297aad8SJan Kara "feature is not enabled\n"); 12755297aad8SJan Kara return 0; 12765297aad8SJan Kara } 12775297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12785297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12795297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12805297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12815297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 12825297aad8SJan Kara else 12835297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 12845297aad8SJan Kara } 12855297aad8SJan Kara return 1; 12865297aad8SJan Kara } 12875297aad8SJan Kara 1288ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1289ccd979bdSMark Fasheh char *options, 1290c0123adeSTiger Yang struct mount_options *mopt, 1291ccd979bdSMark Fasheh int is_remount) 1292ccd979bdSMark Fasheh { 129352c303c5SMark Fasheh int status, user_stack = 0; 1294ccd979bdSMark Fasheh char *p; 12952c442719SSunil Mushran u32 tmp; 12963eb5bdf0SNorton.Zhu int token, option; 12973eb5bdf0SNorton.Zhu substring_t args[MAX_OPT_ARGS]; 1298ccd979bdSMark Fasheh 129932a42d39STao Ma trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); 1300ccd979bdSMark Fasheh 1301d147b3d6SMark Fasheh mopt->commit_interval = 0; 13024b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1303c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1304c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 130573c8a800SMark Fasheh mopt->localalloc_opt = -1; 1306b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1307d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 130883f92318SMark Fasheh mopt->dir_resv_level = -1; 1309ccd979bdSMark Fasheh 1310ccd979bdSMark Fasheh if (!options) { 1311ccd979bdSMark Fasheh status = 1; 1312ccd979bdSMark Fasheh goto bail; 1313ccd979bdSMark Fasheh } 1314ccd979bdSMark Fasheh 1315ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1316ccd979bdSMark Fasheh if (!*p) 1317ccd979bdSMark Fasheh continue; 1318ccd979bdSMark Fasheh 1319ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1320ccd979bdSMark Fasheh switch (token) { 1321ccd979bdSMark Fasheh case Opt_hb_local: 1322c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1323ccd979bdSMark Fasheh break; 1324ccd979bdSMark Fasheh case Opt_hb_none: 13252c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; 13262c442719SSunil Mushran break; 13272c442719SSunil Mushran case Opt_hb_global: 13282c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; 1329ccd979bdSMark Fasheh break; 1330ccd979bdSMark Fasheh case Opt_barrier: 1331ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1332ccd979bdSMark Fasheh status = 0; 1333ccd979bdSMark Fasheh goto bail; 1334ccd979bdSMark Fasheh } 1335ccd979bdSMark Fasheh if (option) 1336c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1337ccd979bdSMark Fasheh else 1338c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1339ccd979bdSMark Fasheh break; 1340ccd979bdSMark Fasheh case Opt_intr: 1341c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1342ccd979bdSMark Fasheh break; 1343ccd979bdSMark Fasheh case Opt_nointr: 1344c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1345ccd979bdSMark Fasheh break; 1346ccd979bdSMark Fasheh case Opt_err_panic: 13477d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 13487d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 1349c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1350ccd979bdSMark Fasheh break; 1351ccd979bdSMark Fasheh case Opt_err_ro: 13527d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 1353c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 13547d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_ROFS; 13557d0fb914SGoldwyn Rodrigues break; 13567d0fb914SGoldwyn Rodrigues case Opt_err_cont: 13577d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 13587d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 13597d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_CONT; 1360ccd979bdSMark Fasheh break; 1361ccd979bdSMark Fasheh case Opt_data_ordered: 1362c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1363ccd979bdSMark Fasheh break; 1364ccd979bdSMark Fasheh case Opt_data_writeback: 1365c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1366ccd979bdSMark Fasheh break; 1367cf1d6c76STiger Yang case Opt_user_xattr: 1368cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1369cf1d6c76STiger Yang break; 1370cf1d6c76STiger Yang case Opt_nouser_xattr: 1371cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1372cf1d6c76STiger Yang break; 13737f1a37e3STiger Yang case Opt_atime_quantum: 13747f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13757f1a37e3STiger Yang status = 0; 13767f1a37e3STiger Yang goto bail; 13777f1a37e3STiger Yang } 13787f1a37e3STiger Yang if (option >= 0) 1379c0123adeSTiger Yang mopt->atime_quantum = option; 13807f1a37e3STiger Yang break; 1381baf4661aSSunil Mushran case Opt_slot: 1382baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1383baf4661aSSunil Mushran status = 0; 1384baf4661aSSunil Mushran goto bail; 1385baf4661aSSunil Mushran } 1386baf4661aSSunil Mushran if (option) 1387c0123adeSTiger Yang mopt->slot = (s16)option; 1388baf4661aSSunil Mushran break; 1389d147b3d6SMark Fasheh case Opt_commit: 1390d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1391d147b3d6SMark Fasheh status = 0; 1392d147b3d6SMark Fasheh goto bail; 1393d147b3d6SMark Fasheh } 1394d147b3d6SMark Fasheh if (option < 0) 1395d147b3d6SMark Fasheh return 0; 1396d147b3d6SMark Fasheh if (option == 0) 13972b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1398d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1399d147b3d6SMark Fasheh break; 14002fbe8d1eSSunil Mushran case Opt_localalloc: 14012fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 14022fbe8d1eSSunil Mushran status = 0; 14032fbe8d1eSSunil Mushran goto bail; 14042fbe8d1eSSunil Mushran } 140573c8a800SMark Fasheh if (option >= 0) 14062fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 14072fbe8d1eSSunil Mushran break; 140853fc622bSMark Fasheh case Opt_localflocks: 140953fc622bSMark Fasheh /* 141053fc622bSMark Fasheh * Changing this during remount could race 141153fc622bSMark Fasheh * flock() requests, or "unbalance" existing 141253fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 141353fc622bSMark Fasheh * dropped in the other). If users care enough 141453fc622bSMark Fasheh * to flip locking modes during remount, we 141553fc622bSMark Fasheh * could add a "local" flag to individual 141653fc622bSMark Fasheh * flock structures for proper tracking of 141753fc622bSMark Fasheh * state. 141853fc622bSMark Fasheh */ 141953fc622bSMark Fasheh if (!is_remount) 142053fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 142153fc622bSMark Fasheh break; 1422b61817e1SJoel Becker case Opt_stack: 1423b61817e1SJoel Becker /* Check both that the option we were passed 1424b61817e1SJoel Becker * is of the right length and that it is a proper 1425b61817e1SJoel Becker * string of the right length. 1426b61817e1SJoel Becker */ 1427b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1428b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1429b61817e1SJoel Becker (strnlen(args[0].from, 1430b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1431b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1432b61817e1SJoel Becker mlog(ML_ERROR, 1433b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1434b61817e1SJoel Becker status = 0; 1435b61817e1SJoel Becker goto bail; 1436b61817e1SJoel Becker } 1437b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1438b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1439b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 144052c303c5SMark Fasheh /* 144152c303c5SMark Fasheh * Open code the memcmp here as we don't have 144252c303c5SMark Fasheh * an osb to pass to 144352c303c5SMark Fasheh * ocfs2_userspace_stack(). 144452c303c5SMark Fasheh */ 144552c303c5SMark Fasheh if (memcmp(mopt->cluster_stack, 144652c303c5SMark Fasheh OCFS2_CLASSIC_CLUSTER_STACK, 144752c303c5SMark Fasheh OCFS2_STACK_LABEL_LEN)) 144852c303c5SMark Fasheh user_stack = 1; 1449b61817e1SJoel Becker break; 145012462f1dSJoel Becker case Opt_inode64: 145112462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 145212462f1dSJoel Becker break; 145319ece546SJan Kara case Opt_usrquota: 145419ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 145519ece546SJan Kara break; 145619ece546SJan Kara case Opt_grpquota: 145719ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 145819ece546SJan Kara break; 14597bdb0d18STristan Ye case Opt_coherency_buffered: 14607bdb0d18STristan Ye mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; 14617bdb0d18STristan Ye break; 14627bdb0d18STristan Ye case Opt_coherency_full: 14637bdb0d18STristan Ye mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; 14647bdb0d18STristan Ye break; 1465a68979b8STiger Yang case Opt_acl: 1466a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14675297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1468a68979b8STiger Yang break; 1469a68979b8STiger Yang case Opt_noacl: 14705297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1471a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1472a68979b8STiger Yang break; 1473d02f00ccSMark Fasheh case Opt_resv_level: 1474d02f00ccSMark Fasheh if (is_remount) 1475d02f00ccSMark Fasheh break; 1476d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1477d02f00ccSMark Fasheh status = 0; 1478d02f00ccSMark Fasheh goto bail; 1479d02f00ccSMark Fasheh } 1480d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1481d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1482d02f00ccSMark Fasheh mopt->resv_level = option; 1483d02f00ccSMark Fasheh break; 148483f92318SMark Fasheh case Opt_dir_resv_level: 148583f92318SMark Fasheh if (is_remount) 148683f92318SMark Fasheh break; 148783f92318SMark Fasheh if (match_int(&args[0], &option)) { 148883f92318SMark Fasheh status = 0; 148983f92318SMark Fasheh goto bail; 149083f92318SMark Fasheh } 149183f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 149283f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 149383f92318SMark Fasheh mopt->dir_resv_level = option; 149483f92318SMark Fasheh break; 14951dfeb768Salex chen case Opt_journal_async_commit: 14961dfeb768Salex chen mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT; 14971dfeb768Salex chen break; 1498ccd979bdSMark Fasheh default: 1499ccd979bdSMark Fasheh mlog(ML_ERROR, 1500ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1501ccd979bdSMark Fasheh "or missing value\n", p); 1502ccd979bdSMark Fasheh status = 0; 1503ccd979bdSMark Fasheh goto bail; 1504ccd979bdSMark Fasheh } 1505ccd979bdSMark Fasheh } 1506ccd979bdSMark Fasheh 150752c303c5SMark Fasheh if (user_stack == 0) { 15082c442719SSunil Mushran /* Ensure only one heartbeat mode */ 150952c303c5SMark Fasheh tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | 151052c303c5SMark Fasheh OCFS2_MOUNT_HB_GLOBAL | 15112c442719SSunil Mushran OCFS2_MOUNT_HB_NONE); 15122c442719SSunil Mushran if (hweight32(tmp) != 1) { 15132c442719SSunil Mushran mlog(ML_ERROR, "Invalid heartbeat mount options\n"); 15142c442719SSunil Mushran status = 0; 15152c442719SSunil Mushran goto bail; 15162c442719SSunil Mushran } 151752c303c5SMark Fasheh } 15182c442719SSunil Mushran 1519ccd979bdSMark Fasheh status = 1; 1520ccd979bdSMark Fasheh 1521ccd979bdSMark Fasheh bail: 1522ccd979bdSMark Fasheh return status; 1523ccd979bdSMark Fasheh } 1524ccd979bdSMark Fasheh 152534c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root) 1526d550071cSSunil Mushran { 152734c80b1dSAl Viro struct ocfs2_super *osb = OCFS2_SB(root->d_sb); 1528d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1529ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1530d550071cSSunil Mushran 15312c442719SSunil Mushran if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { 15322c442719SSunil Mushran seq_printf(s, ",_netdev"); 1533d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 15342c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_LOCAL); 1535d550071cSSunil Mushran else 15362c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_GLOBAL); 15372c442719SSunil Mushran } else 15382c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_NONE); 1539d550071cSSunil Mushran 1540d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1541d550071cSSunil Mushran seq_printf(s, ",nointr"); 1542d550071cSSunil Mushran 1543d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1544d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1545d550071cSSunil Mushran else 1546d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1547d550071cSSunil Mushran 1548d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1549d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1550d550071cSSunil Mushran 1551d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1552d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 15537d0fb914SGoldwyn Rodrigues else if (opts & OCFS2_MOUNT_ERRORS_CONT) 15547d0fb914SGoldwyn Rodrigues seq_printf(s, ",errors=continue"); 1555d550071cSSunil Mushran else 1556d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1557d550071cSSunil Mushran 1558d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1559d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1560d550071cSSunil Mushran 1561d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1562d550071cSSunil Mushran 1563d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1564d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1565d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1566d147b3d6SMark Fasheh 1567ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15686b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1569ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15702fbe8d1eSSunil Mushran 157153fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 157253fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 157353fc622bSMark Fasheh 1574b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1575a068acf2SKees Cook seq_show_option_n(s, "cluster_stack", osb->osb_cluster_stack, 1576a068acf2SKees Cook OCFS2_STACK_LABEL_LEN); 157719ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 157819ece546SJan Kara seq_printf(s, ",usrquota"); 157919ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 158019ece546SJan Kara seq_printf(s, ",grpquota"); 1581b61817e1SJoel Becker 15827bdb0d18STristan Ye if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) 15837bdb0d18STristan Ye seq_printf(s, ",coherency=buffered"); 15847bdb0d18STristan Ye else 15857bdb0d18STristan Ye seq_printf(s, ",coherency=full"); 15867bdb0d18STristan Ye 1587b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1588b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1589b0f73cfcSSunil Mushran else 1590b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1591b0f73cfcSSunil Mushran 159212462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 159312462f1dSJoel Becker seq_printf(s, ",inode64"); 159412462f1dSJoel Becker 1595a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1596a68979b8STiger Yang seq_printf(s, ",acl"); 1597a68979b8STiger Yang else 1598a68979b8STiger Yang seq_printf(s, ",noacl"); 1599a68979b8STiger Yang 1600d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1601d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1602d02f00ccSMark Fasheh 160383f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 160483f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 160583f92318SMark Fasheh 16061dfeb768Salex chen if (opts & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 16071dfeb768Salex chen seq_printf(s, ",journal_async_commit"); 16081dfeb768Salex chen 1609d550071cSSunil Mushran return 0; 1610d550071cSSunil Mushran } 1611d550071cSSunil Mushran 1612ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1613ccd979bdSMark Fasheh { 1614c18ceab0SWengang Wang int status; 1615a11f7e63SMark Fasheh 1616ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1617342827d7SAl Viro if (status < 0) 1618342827d7SAl Viro goto out1; 1619ccd979bdSMark Fasheh 1620ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1621342827d7SAl Viro if (status < 0) 1622342827d7SAl Viro goto out2; 1623ccd979bdSMark Fasheh 1624ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 16258f443e23SLinus Torvalds if (!ocfs2_debugfs_root) { 16268f443e23SLinus Torvalds status = -ENOMEM; 1627ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 162835ddf78eSjiangyiwen goto out3; 1629ccd979bdSMark Fasheh } 1630ccd979bdSMark Fasheh 163163e0c48aSJoel Becker ocfs2_set_locking_protocol(); 163263e0c48aSJoel Becker 16339e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1634342827d7SAl Viro if (status < 0) 163535ddf78eSjiangyiwen goto out3; 1636342827d7SAl Viro status = register_filesystem(&ocfs2_fs_type); 1637342827d7SAl Viro if (!status) 1638342827d7SAl Viro return 0; 1639ccd979bdSMark Fasheh 1640342827d7SAl Viro unregister_quota_format(&ocfs2_quota_format); 1641342827d7SAl Viro out3: 164235ddf78eSjiangyiwen debugfs_remove(ocfs2_debugfs_root); 1643342827d7SAl Viro ocfs2_free_mem_caches(); 1644342827d7SAl Viro out2: 1645342827d7SAl Viro exit_ocfs2_uptodate_cache(); 1646342827d7SAl Viro out1: 1647342827d7SAl Viro mlog_errno(status); 1648342827d7SAl Viro return status; 1649ccd979bdSMark Fasheh } 1650ccd979bdSMark Fasheh 1651ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1652ccd979bdSMark Fasheh { 16539e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 16549e33d69fSJan Kara 1655ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1656ccd979bdSMark Fasheh 1657ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1658ccd979bdSMark Fasheh 1659ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1660ccd979bdSMark Fasheh 1661ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1662ccd979bdSMark Fasheh } 1663ccd979bdSMark Fasheh 1664ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1665ccd979bdSMark Fasheh { 166632a42d39STao Ma trace_ocfs2_put_super(sb); 1667ccd979bdSMark Fasheh 1668ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1669ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1670ccd979bdSMark Fasheh } 1671ccd979bdSMark Fasheh 1672726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1673ccd979bdSMark Fasheh { 1674ccd979bdSMark Fasheh struct ocfs2_super *osb; 1675ccd979bdSMark Fasheh u32 numbits, freebits; 1676ccd979bdSMark Fasheh int status; 1677ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1678ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1679ccd979bdSMark Fasheh struct inode *inode = NULL; 1680ccd979bdSMark Fasheh 168132a42d39STao Ma trace_ocfs2_statfs(dentry->d_sb, buf); 1682ccd979bdSMark Fasheh 1683726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1684ccd979bdSMark Fasheh 1685ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1686ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1687ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1688ccd979bdSMark Fasheh if (!inode) { 1689ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1690ccd979bdSMark Fasheh status = -EIO; 1691ccd979bdSMark Fasheh goto bail; 1692ccd979bdSMark Fasheh } 1693ccd979bdSMark Fasheh 1694e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1695ccd979bdSMark Fasheh if (status < 0) { 1696ccd979bdSMark Fasheh mlog_errno(status); 1697ccd979bdSMark Fasheh goto bail; 1698ccd979bdSMark Fasheh } 1699ccd979bdSMark Fasheh 1700ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1701ccd979bdSMark Fasheh 1702ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1703ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1704ccd979bdSMark Fasheh 1705ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1706726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1707ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1708ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1709ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1710ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1711ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1712ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1713ccd979bdSMark Fasheh buf->f_files = numbits; 1714ccd979bdSMark Fasheh buf->f_ffree = freebits; 1715837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1716837711f8SColy Li & 0xFFFFFFFFUL; 1717837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1718837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1719ccd979bdSMark Fasheh 1720ccd979bdSMark Fasheh brelse(bh); 1721ccd979bdSMark Fasheh 1722e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1723ccd979bdSMark Fasheh status = 0; 1724ccd979bdSMark Fasheh bail: 1725ccd979bdSMark Fasheh iput(inode); 1726ccd979bdSMark Fasheh 1727c1e8d35eSTao Ma if (status) 1728c1e8d35eSTao Ma mlog_errno(status); 1729ccd979bdSMark Fasheh 1730ccd979bdSMark Fasheh return status; 1731ccd979bdSMark Fasheh } 1732ccd979bdSMark Fasheh 173351cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1734ccd979bdSMark Fasheh { 1735ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1736ccd979bdSMark Fasheh 1737ccd979bdSMark Fasheh oi->ip_flags = 0; 1738ccd979bdSMark Fasheh oi->ip_open_count = 0; 1739ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 174083418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1741ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 17424506cfb6SRyan Ding INIT_LIST_HEAD(&oi->ip_unwritten_list); 1743ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1744ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1745cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1746251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1747ccd979bdSMark Fasheh 1748ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1749ccd979bdSMark Fasheh oi->ip_clusters = 0; 1750ccd979bdSMark Fasheh 17514fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 17524fe370afSMark Fasheh 1753ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1754e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 175550008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1756ccd979bdSMark Fasheh 17578cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 17586e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1759ccd979bdSMark Fasheh 1760ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1761ccd979bdSMark Fasheh } 1762ccd979bdSMark Fasheh 1763ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1764ccd979bdSMark Fasheh { 1765ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1766ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1767fffb60f9SPaul Jackson 0, 1768fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17695d097056SVladimir Davydov SLAB_MEM_SPREAD|SLAB_ACCOUNT), 177020c2df83SPaul Mundt ocfs2_inode_init_once); 17719e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17729e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17739e33d69fSJan Kara 0, 17749e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17759e33d69fSJan Kara SLAB_MEM_SPREAD), 17769e33d69fSJan Kara NULL); 17779e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17789e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17799e33d69fSJan Kara 0, 17809e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 17819e33d69fSJan Kara NULL); 17829e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 17839e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 17849e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 17859e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17869e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1787ccd979bdSMark Fasheh return -ENOMEM; 17889e33d69fSJan Kara } 1789ccd979bdSMark Fasheh 1790ccd979bdSMark Fasheh return 0; 1791ccd979bdSMark Fasheh } 1792ccd979bdSMark Fasheh 1793ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1794ccd979bdSMark Fasheh { 17958c0a8537SKirill A. Shutemov /* 17968c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 17978c0a8537SKirill A. Shutemov * destroy cache. 17988c0a8537SKirill A. Shutemov */ 17998c0a8537SKirill A. Shutemov rcu_barrier(); 1800ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1801ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 18029e33d69fSJan Kara 18039e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 18049e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 18059e33d69fSJan Kara 18069e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 18079e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1808ccd979bdSMark Fasheh } 1809ccd979bdSMark Fasheh 1810ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1811ccd979bdSMark Fasheh struct buffer_head **bh, 1812ccd979bdSMark Fasheh int block, 1813ccd979bdSMark Fasheh int sect_size) 1814ccd979bdSMark Fasheh { 1815ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1816ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1817ccd979bdSMark Fasheh return -EIO; 1818ccd979bdSMark Fasheh } 1819ccd979bdSMark Fasheh 1820ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1821ccd979bdSMark Fasheh if (!*bh) { 18227391a294SRui Xiang mlog_errno(-ENOMEM); 18237391a294SRui Xiang return -ENOMEM; 1824ccd979bdSMark Fasheh } 1825ccd979bdSMark Fasheh lock_buffer(*bh); 1826ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1827ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1828ccd979bdSMark Fasheh unlock_buffer(*bh); 1829dfec8a14SMike Christie ll_rw_block(REQ_OP_READ, 0, 1, bh); 1830ccd979bdSMark Fasheh wait_on_buffer(*bh); 183128d57d43Swengang wang if (!buffer_uptodate(*bh)) { 183228d57d43Swengang wang mlog_errno(-EIO); 183328d57d43Swengang wang brelse(*bh); 183428d57d43Swengang wang *bh = NULL; 183528d57d43Swengang wang return -EIO; 183628d57d43Swengang wang } 183728d57d43Swengang wang 1838ccd979bdSMark Fasheh return 0; 1839ccd979bdSMark Fasheh } 1840ccd979bdSMark Fasheh 1841ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1842ccd979bdSMark Fasheh { 1843ccd979bdSMark Fasheh int status = 0; 1844ccd979bdSMark Fasheh int unlock_super = 0; 1845ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1846ccd979bdSMark Fasheh 1847ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1848ccd979bdSMark Fasheh goto leave; 1849ccd979bdSMark Fasheh 18505500ab4eSGang He mutex_init(&osb->obs_trim_fs_mutex); 18515500ab4eSGang He 1852ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1853ccd979bdSMark Fasheh if (status < 0) { 1854ccd979bdSMark Fasheh mlog_errno(status); 1855a52370b3SGang He if (status == -EBADR && ocfs2_userspace_stack(osb)) 1856a52370b3SGang He mlog(ML_ERROR, "couldn't mount because cluster name on" 1857a52370b3SGang He " disk does not match the running cluster name.\n"); 1858ccd979bdSMark Fasheh goto leave; 1859ccd979bdSMark Fasheh } 1860ccd979bdSMark Fasheh 1861ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1862ccd979bdSMark Fasheh if (status < 0) { 1863ccd979bdSMark Fasheh mlog_errno(status); 1864ccd979bdSMark Fasheh goto leave; 1865ccd979bdSMark Fasheh } 1866ccd979bdSMark Fasheh unlock_super = 1; 1867ccd979bdSMark Fasheh 1868ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1869ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1870ccd979bdSMark Fasheh if (status < 0) { 1871ccd979bdSMark Fasheh mlog_errno(status); 1872ccd979bdSMark Fasheh goto leave; 1873ccd979bdSMark Fasheh } 1874ccd979bdSMark Fasheh 1875ccd979bdSMark Fasheh /* load all node-local system inodes */ 1876ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1877ccd979bdSMark Fasheh if (status < 0) { 1878ccd979bdSMark Fasheh mlog_errno(status); 1879ccd979bdSMark Fasheh goto leave; 1880ccd979bdSMark Fasheh } 1881ccd979bdSMark Fasheh 1882ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1883ccd979bdSMark Fasheh if (status < 0) { 1884ccd979bdSMark Fasheh mlog_errno(status); 1885ccd979bdSMark Fasheh goto leave; 1886ccd979bdSMark Fasheh } 1887ccd979bdSMark Fasheh 1888ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 188906c59bb8STao Ma if (status < 0) 1890ccd979bdSMark Fasheh mlog_errno(status); 1891c271c5c2SSunil Mushran 1892ccd979bdSMark Fasheh leave: 1893ccd979bdSMark Fasheh if (unlock_super) 1894ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1895ccd979bdSMark Fasheh 1896ccd979bdSMark Fasheh return status; 1897ccd979bdSMark Fasheh } 1898ccd979bdSMark Fasheh 1899ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1900ccd979bdSMark Fasheh { 1901286eaa95SJoel Becker int tmp, hangup_needed = 0; 1902ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 190399d7a882SGoldwyn Rodrigues char nodestr[12]; 1904ccd979bdSMark Fasheh 190532a42d39STao Ma trace_ocfs2_dismount_volume(sb); 1906ccd979bdSMark Fasheh 1907ccd979bdSMark Fasheh BUG_ON(!sb); 1908ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1909ccd979bdSMark Fasheh BUG_ON(!osb); 1910ccd979bdSMark Fasheh 19115f483c4aSGang He /* Remove file check sysfs related directores/files, 19125f483c4aSGang He * and wait for the pending file check operations */ 19135f483c4aSGang He ocfs2_filecheck_remove_sysfs(osb); 19145f483c4aSGang He 19155f483c4aSGang He kset_unregister(osb->osb_dev_kset); 19165f483c4aSGang He 191750397507SSunil Mushran debugfs_remove(osb->osb_ctxt); 191850397507SSunil Mushran 1919692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1920692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1921692684e1SSunil Mushran 192219ece546SJan Kara ocfs2_disable_quotas(osb); 192319ece546SJan Kara 1924e3a767b6SJan Kara /* All dquots should be freed by now */ 1925e3a767b6SJan Kara WARN_ON(!llist_empty(&osb->dquot_drop_list)); 1926e3a767b6SJan Kara /* Wait for worker to be done with the work structure in osb */ 1927e3a767b6SJan Kara cancel_work_sync(&osb->dquot_drop_work); 1928e3a767b6SJan Kara 1929ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1930ccd979bdSMark Fasheh 1931b253bfd8SXue jiufei ocfs2_truncate_log_shutdown(osb); 1932b253bfd8SXue jiufei 1933553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1934553abd04SJoel Becker ocfs2_recovery_exit(osb); 1935ccd979bdSMark Fasheh 1936ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1937ccd979bdSMark Fasheh 1938ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1939ccd979bdSMark Fasheh 1940374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1941374a263eSTao Ma 19424670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 19434670c46dSJoel Becker * all the steps which depended on that to complete. */ 19444670c46dSJoel Becker if (osb->cconn) { 1945ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1946ccd979bdSMark Fasheh if (tmp < 0) { 1947ccd979bdSMark Fasheh mlog_errno(tmp); 1948ccd979bdSMark Fasheh return; 1949ccd979bdSMark Fasheh } 195019b613d4SMark Fasheh } 1951ccd979bdSMark Fasheh 1952ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1953ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1954ccd979bdSMark Fasheh 19554670c46dSJoel Becker if (osb->cconn) 1956ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1957ccd979bdSMark Fasheh 1958ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1959ccd979bdSMark Fasheh 19606953b4c0SJoel Becker /* 19616953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19626953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19636953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19646953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19656953b4c0SJoel Becker */ 196603efed8aSTiger Yang if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str && 196703efed8aSTiger Yang !ocfs2_is_hard_readonly(osb)) 1968286eaa95SJoel Becker hangup_needed = 1; 1969286eaa95SJoel Becker 1970286eaa95SJoel Becker if (osb->cconn) 1971286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1972286eaa95SJoel Becker 197373be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 1974286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1975286eaa95SJoel Becker 1976286eaa95SJoel Becker if (hangup_needed) 19776953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1978ccd979bdSMark Fasheh 1979ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1980ccd979bdSMark Fasheh 1981c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1982c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1983c271c5c2SSunil Mushran else 198419fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1985c271c5c2SSunil Mushran 1986c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1987c271c5c2SSunil Mushran osb->dev_str, nodestr); 1988ccd979bdSMark Fasheh 1989ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1990ccd979bdSMark Fasheh kfree(osb); 1991ccd979bdSMark Fasheh sb->s_dev = 0; 1992ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1993ccd979bdSMark Fasheh } 1994ccd979bdSMark Fasheh 1995ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1996ccd979bdSMark Fasheh unsigned uuid_bytes) 1997ccd979bdSMark Fasheh { 1998ccd979bdSMark Fasheh int i, ret; 1999ccd979bdSMark Fasheh char *ptr; 2000ccd979bdSMark Fasheh 2001ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 2002ccd979bdSMark Fasheh 2003cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 2004ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 2005ccd979bdSMark Fasheh return -ENOMEM; 2006ccd979bdSMark Fasheh 2007ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 2008ccd979bdSMark Fasheh /* print with null */ 2009ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 2010ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 2011ccd979bdSMark Fasheh return -EINVAL; 2012ccd979bdSMark Fasheh /* then only advance past the last char */ 2013ccd979bdSMark Fasheh ptr += 2; 2014ccd979bdSMark Fasheh } 2015ccd979bdSMark Fasheh 2016ccd979bdSMark Fasheh return 0; 2017ccd979bdSMark Fasheh } 2018ccd979bdSMark Fasheh 20193bdb8efdSPatrick J. LoPresti /* Make sure entire volume is addressable by our journal. Requires 20203bdb8efdSPatrick J. LoPresti osb_clusters_at_boot to be valid and for the journal to have been 20213bdb8efdSPatrick J. LoPresti initialized by ocfs2_journal_init(). */ 20223bdb8efdSPatrick J. LoPresti static int ocfs2_journal_addressable(struct ocfs2_super *osb) 20233bdb8efdSPatrick J. LoPresti { 20243bdb8efdSPatrick J. LoPresti int status = 0; 20253bdb8efdSPatrick J. LoPresti u64 max_block = 20263bdb8efdSPatrick J. LoPresti ocfs2_clusters_to_blocks(osb->sb, 20273bdb8efdSPatrick J. LoPresti osb->osb_clusters_at_boot) - 1; 20283bdb8efdSPatrick J. LoPresti 20293bdb8efdSPatrick J. LoPresti /* 32-bit block number is always OK. */ 20303bdb8efdSPatrick J. LoPresti if (max_block <= (u32)~0ULL) 20313bdb8efdSPatrick J. LoPresti goto out; 20323bdb8efdSPatrick J. LoPresti 20333bdb8efdSPatrick J. LoPresti /* Volume is "huge", so see if our journal is new enough to 20343bdb8efdSPatrick J. LoPresti support it. */ 20353bdb8efdSPatrick J. LoPresti if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, 20363bdb8efdSPatrick J. LoPresti OCFS2_FEATURE_COMPAT_JBD2_SB) && 20373bdb8efdSPatrick J. LoPresti jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, 20383bdb8efdSPatrick J. LoPresti JBD2_FEATURE_INCOMPAT_64BIT))) { 20393bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "The journal cannot address the entire volume. " 20403bdb8efdSPatrick J. LoPresti "Enable the 'block64' journal option with tunefs.ocfs2"); 20413bdb8efdSPatrick J. LoPresti status = -EFBIG; 20423bdb8efdSPatrick J. LoPresti goto out; 20433bdb8efdSPatrick J. LoPresti } 20443bdb8efdSPatrick J. LoPresti 20453bdb8efdSPatrick J. LoPresti out: 20463bdb8efdSPatrick J. LoPresti return status; 20473bdb8efdSPatrick J. LoPresti } 20483bdb8efdSPatrick J. LoPresti 2049ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 2050ccd979bdSMark Fasheh struct buffer_head *bh, 205173be192bSJoel Becker int sector_size, 205273be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2053ccd979bdSMark Fasheh { 2054bddb8eb3SDenis Cheng int status; 20555a254031SMark Fasheh int i, cbits, bbits; 20565a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2057ccd979bdSMark Fasheh struct inode *inode = NULL; 2058ccd979bdSMark Fasheh struct ocfs2_journal *journal; 2059ccd979bdSMark Fasheh struct ocfs2_super *osb; 20603bdb8efdSPatrick J. LoPresti u64 total_blocks; 2061ccd979bdSMark Fasheh 2062cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2063ccd979bdSMark Fasheh if (!osb) { 2064ccd979bdSMark Fasheh status = -ENOMEM; 2065ccd979bdSMark Fasheh mlog_errno(status); 2066ccd979bdSMark Fasheh goto bail; 2067ccd979bdSMark Fasheh } 2068ccd979bdSMark Fasheh 2069ccd979bdSMark Fasheh sb->s_fs_info = osb; 2070ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2071ba87167cSAl Viro sb->s_d_op = &ocfs2_dentry_ops; 2072ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 2073664dbd5fSJan Kara sb->s_qcop = &dquot_quotactl_sysfile_ops; 207419ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 20751c92ec67SJan Kara sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP; 2076cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2077e0dceaf0SMark Fasheh sb->s_time_gran = 1; 20781751e8a6SLinus Torvalds sb->s_flags |= SB_NOATIME; 2079ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20805a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20815a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20825a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 208385787090SChristoph Hellwig memcpy(&sb->s_uuid, di->id2.i_super.s_uuid, 208458be19dcSVladimir Davydov sizeof(di->id2.i_super.s_uuid)); 2085ccd979bdSMark Fasheh 20869b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20879b7895efSMark Fasheh 20889b7895efSMark Fasheh for (i = 0; i < 3; i++) 20899b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 20909b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 20919b7895efSMark Fasheh 2092ccd979bdSMark Fasheh osb->sb = sb; 2093ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2094ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2095ccd979bdSMark Fasheh 209634d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 209734d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 209834d024f8SMark Fasheh osb->dc_work_sequence = 0; 209934d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2100ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2101ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2102ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2103c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2104b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2105ccd979bdSMark Fasheh 210643b10a20Sjiangyiwen mutex_init(&osb->system_file_mutex); 210743b10a20Sjiangyiwen 2108ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2109ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2110ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2111ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2112ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2113ccd979bdSMark Fasheh 211473be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 211573be192bSJoel Becker osb->osb_ecc_stats = *stats; 211673be192bSJoel Becker 2117ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2118ccd979bdSMark Fasheh 2119ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2120ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2121ccd979bdSMark Fasheh 212275d9bbc7SGoldwyn Rodrigues osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 212375d9bbc7SGoldwyn Rodrigues if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 212475d9bbc7SGoldwyn Rodrigues mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 212575d9bbc7SGoldwyn Rodrigues osb->max_slots); 212675d9bbc7SGoldwyn Rodrigues status = -EINVAL; 212775d9bbc7SGoldwyn Rodrigues goto bail; 212875d9bbc7SGoldwyn Rodrigues } 212975d9bbc7SGoldwyn Rodrigues 21308b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 21318b712cd5SJeff Mahoney 2132553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2133553abd04SJoel Becker if (status) { 2134553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2135553abd04SJoel Becker mlog_errno(status); 2136553abd04SJoel Becker goto bail; 2137553abd04SJoel Becker } 2138ccd979bdSMark Fasheh 2139ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2140ccd979bdSMark Fasheh 21417f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 21427f1a37e3STiger Yang 2143ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2144ccd979bdSMark Fasheh 21458154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 21468154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2147fdd77704STiger Yang 2148ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2149ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 21509c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2151ccd979bdSMark Fasheh 2152ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2153ccd979bdSMark Fasheh 2154d02f00ccSMark Fasheh status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2155d02f00ccSMark Fasheh if (status) { 2156d02f00ccSMark Fasheh mlog_errno(status); 2157d02f00ccSMark Fasheh goto bail; 2158d02f00ccSMark Fasheh } 2159d02f00ccSMark Fasheh 2160ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2161ccd979bdSMark Fasheh if (!osb->vol_label) { 2162ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2163ccd979bdSMark Fasheh status = -ENOMEM; 2164ccd979bdSMark Fasheh goto bail; 2165ccd979bdSMark Fasheh } 2166ccd979bdSMark Fasheh 2167539d8264SSunil Mushran osb->slot_recovery_generations = 2168539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2169539d8264SSunil Mushran GFP_KERNEL); 2170539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2171539d8264SSunil Mushran status = -ENOMEM; 2172539d8264SSunil Mushran mlog_errno(status); 2173539d8264SSunil Mushran goto bail; 2174539d8264SSunil Mushran } 2175539d8264SSunil Mushran 2176b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2177b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2178b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2179b4df6ed8SMark Fasheh GFP_KERNEL); 2180b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2181b4df6ed8SMark Fasheh status = -ENOMEM; 2182b4df6ed8SMark Fasheh mlog_errno(status); 2183b4df6ed8SMark Fasheh goto bail; 2184b4df6ed8SMark Fasheh } 2185b4df6ed8SMark Fasheh 2186374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2187374a263eSTao Ma 2188ccd979bdSMark Fasheh osb->s_feature_compat = 2189ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2190ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2191ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2192ccd979bdSMark Fasheh osb->s_feature_incompat = 2193ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2194ccd979bdSMark Fasheh 2195ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2196ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2197ccd979bdSMark Fasheh "optional features (%x).\n", i); 2198ccd979bdSMark Fasheh status = -EINVAL; 2199ccd979bdSMark Fasheh goto bail; 2200ccd979bdSMark Fasheh } 2201bc98a42cSDavid Howells if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2202ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2203ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2204ccd979bdSMark Fasheh status = -EINVAL; 2205ccd979bdSMark Fasheh goto bail; 2206ccd979bdSMark Fasheh } 2207ccd979bdSMark Fasheh 220898f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 220998f486f2SSunil Mushran osb->osb_stackflags = 221098f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2211c74a3bddSGoldwyn Rodrigues strlcpy(osb->osb_cluster_stack, 2212b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2213c74a3bddSGoldwyn Rodrigues OCFS2_STACK_LABEL_LEN + 1); 2214b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2215b61817e1SJoel Becker mlog(ML_ERROR, 2216b61817e1SJoel Becker "couldn't mount because of an invalid " 2217b61817e1SJoel Becker "cluster stack label (%s) \n", 2218b61817e1SJoel Becker osb->osb_cluster_stack); 2219b61817e1SJoel Becker status = -EINVAL; 2220b61817e1SJoel Becker goto bail; 2221b61817e1SJoel Becker } 2222c74a3bddSGoldwyn Rodrigues strlcpy(osb->osb_cluster_name, 2223c74a3bddSGoldwyn Rodrigues OCFS2_RAW_SB(di)->s_cluster_info.ci_cluster, 2224c74a3bddSGoldwyn Rodrigues OCFS2_CLUSTER_NAME_LEN + 1); 2225b61817e1SJoel Becker } else { 2226b61817e1SJoel Becker /* The empty string is identical with classic tools that 2227b61817e1SJoel Becker * don't know about s_cluster_info. */ 2228b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2229b61817e1SJoel Becker } 2230b61817e1SJoel Becker 2231ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2232ccd979bdSMark Fasheh 2233ccd979bdSMark Fasheh /* FIXME 2234ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 2235ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 2236ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 2237ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 2238ccd979bdSMark Fasheh * be my guest. 2239ccd979bdSMark Fasheh */ 2240ccd979bdSMark Fasheh /* initialize our journal structure */ 2241ccd979bdSMark Fasheh 2242cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 2243ccd979bdSMark Fasheh if (!journal) { 2244ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 2245ccd979bdSMark Fasheh status = -ENOMEM; 2246ccd979bdSMark Fasheh goto bail; 2247ccd979bdSMark Fasheh } 2248ccd979bdSMark Fasheh osb->journal = journal; 2249ccd979bdSMark Fasheh journal->j_osb = osb; 2250ccd979bdSMark Fasheh 2251ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 2252ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 2253ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 2254ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 2255ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 2256ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 2257c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 2258ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 2259ccd979bdSMark Fasheh 2260e3a767b6SJan Kara INIT_WORK(&osb->dquot_drop_work, ocfs2_drop_dquot_refs); 2261e3a767b6SJan Kara init_llist_head(&osb->dquot_drop_list); 2262e3a767b6SJan Kara 2263ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2264ccd979bdSMark Fasheh osb->s_clustersize_bits = 2265ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2266ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2267ccd979bdSMark Fasheh 2268ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2269ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2270ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2271ccd979bdSMark Fasheh osb->s_clustersize); 2272ccd979bdSMark Fasheh status = -EINVAL; 2273ccd979bdSMark Fasheh goto bail; 2274ccd979bdSMark Fasheh } 2275ccd979bdSMark Fasheh 22763bdb8efdSPatrick J. LoPresti total_blocks = ocfs2_clusters_to_blocks(osb->sb, 22773bdb8efdSPatrick J. LoPresti le32_to_cpu(di->i_clusters)); 22783bdb8efdSPatrick J. LoPresti 22793bdb8efdSPatrick J. LoPresti status = generic_check_addressable(osb->sb->s_blocksize_bits, 22803bdb8efdSPatrick J. LoPresti total_blocks); 22813bdb8efdSPatrick J. LoPresti if (status) { 22823bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "Volume too large " 22833bdb8efdSPatrick J. LoPresti "to mount safely on this system"); 22843bdb8efdSPatrick J. LoPresti status = -EFBIG; 2285ccd979bdSMark Fasheh goto bail; 2286ccd979bdSMark Fasheh } 2287ccd979bdSMark Fasheh 2288ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2289ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2290ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2291ccd979bdSMark Fasheh status = -ENOMEM; 2292ccd979bdSMark Fasheh goto bail; 2293ccd979bdSMark Fasheh } 2294ccd979bdSMark Fasheh 229569201bb1SFabian Frederick strlcpy(osb->vol_label, di->id2.i_super.s_label, 229669201bb1SFabian Frederick OCFS2_MAX_VOL_LABEL_LEN); 2297ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2298ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2299ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2300ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2301ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2302cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 230332a42d39STao Ma trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, 2304b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 230532a42d39STao Ma (unsigned long long)osb->system_dir_blkno, 230632a42d39STao Ma osb->s_clustersize_bits); 2307ccd979bdSMark Fasheh 2308ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2309ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2310ccd979bdSMark Fasheh status = -ENOMEM; 2311ccd979bdSMark Fasheh mlog_errno(status); 2312ccd979bdSMark Fasheh goto bail; 2313ccd979bdSMark Fasheh } 2314ccd979bdSMark Fasheh 2315ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2316ccd979bdSMark Fasheh 2317ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2318ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2319ccd979bdSMark Fasheh if (status < 0) { 2320ccd979bdSMark Fasheh mlog_errno(status); 2321ccd979bdSMark Fasheh goto bail; 2322ccd979bdSMark Fasheh } 2323ccd979bdSMark Fasheh 2324ccd979bdSMark Fasheh /* 2325ccd979bdSMark Fasheh * global bitmap 2326ccd979bdSMark Fasheh */ 2327ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2328ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2329ccd979bdSMark Fasheh if (!inode) { 2330ccd979bdSMark Fasheh status = -EINVAL; 2331ccd979bdSMark Fasheh mlog_errno(status); 2332ccd979bdSMark Fasheh goto bail; 2333ccd979bdSMark Fasheh } 2334ccd979bdSMark Fasheh 2335ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 23366b82021bSMark Fasheh osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; 2337ccd979bdSMark Fasheh iput(inode); 2338ccd979bdSMark Fasheh 23398571882cSTao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, 23408571882cSTao Ma osb->s_feature_incompat) * 8; 2341ccd979bdSMark Fasheh 2342ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2343ccd979bdSMark Fasheh if (status < 0) { 2344ccd979bdSMark Fasheh mlog_errno(status); 2345ccd979bdSMark Fasheh goto bail; 2346ccd979bdSMark Fasheh } 23479de16262SVladimir Davydov cleancache_init_shared_fs(sb); 2348ccd979bdSMark Fasheh 234944be9756SBhaktipriya Shridhar osb->ocfs2_wq = alloc_ordered_workqueue("ocfs2_wq", WQ_MEM_RECLAIM); 235035ddf78eSjiangyiwen if (!osb->ocfs2_wq) { 235135ddf78eSjiangyiwen status = -ENOMEM; 235235ddf78eSjiangyiwen mlog_errno(status); 235335ddf78eSjiangyiwen } 235435ddf78eSjiangyiwen 2355ccd979bdSMark Fasheh bail: 2356ccd979bdSMark Fasheh return status; 2357ccd979bdSMark Fasheh } 2358ccd979bdSMark Fasheh 2359ccd979bdSMark Fasheh /* 2360ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2361ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2362ccd979bdSMark Fasheh * 0 on success 2363ccd979bdSMark Fasheh */ 2364ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2365ccd979bdSMark Fasheh struct buffer_head *bh, 236673be192bSJoel Becker u32 blksz, 236773be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2368ccd979bdSMark Fasheh { 2369ccd979bdSMark Fasheh int status = -EAGAIN; 2370ccd979bdSMark Fasheh 2371ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2372ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2373d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2374d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2375d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2376d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2377d030cc97SJoel Becker bh->b_size, 237873be192bSJoel Becker &di->i_check, 237973be192bSJoel Becker stats); 2380d030cc97SJoel Becker if (status) 2381d030cc97SJoel Becker goto out; 2382d030cc97SJoel Becker } 2383ccd979bdSMark Fasheh status = -EINVAL; 2384ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2385ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2386ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2387ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2388ccd979bdSMark Fasheh blksz); 2389ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2390ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2391ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2392ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2393ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2394ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2395ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2396ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2397ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2398ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2399ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2400ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2401b0697053SMark Fasheh "found %llu, should be %llu\n", 24021ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2403b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2404ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2405ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2406ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2407ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2408ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2409ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2410ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2411ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2412ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2413ccd979bdSMark Fasheh mlog(ML_ERROR, 2414ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2415ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2416ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2417ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2418ccd979bdSMark Fasheh } else { 2419ccd979bdSMark Fasheh /* found it! */ 2420ccd979bdSMark Fasheh status = 0; 2421ccd979bdSMark Fasheh } 2422ccd979bdSMark Fasheh } 2423ccd979bdSMark Fasheh 2424d030cc97SJoel Becker out: 2425c1e8d35eSTao Ma if (status && status != -EAGAIN) 2426c1e8d35eSTao Ma mlog_errno(status); 2427ccd979bdSMark Fasheh return status; 2428ccd979bdSMark Fasheh } 2429ccd979bdSMark Fasheh 2430ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2431ccd979bdSMark Fasheh { 2432bddb8eb3SDenis Cheng int status; 2433ccd979bdSMark Fasheh int dirty; 2434c271c5c2SSunil Mushran int local; 2435ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2436ccd979bdSMark Fasheh * recover 2437ccd979bdSMark Fasheh * ourselves. */ 2438ccd979bdSMark Fasheh 2439ccd979bdSMark Fasheh /* Init our journal object. */ 2440ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2441ccd979bdSMark Fasheh if (status < 0) { 2442ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2443ccd979bdSMark Fasheh goto finally; 2444ccd979bdSMark Fasheh } 2445ccd979bdSMark Fasheh 24463bdb8efdSPatrick J. LoPresti /* Now that journal has been initialized, check to make sure 24473bdb8efdSPatrick J. LoPresti entire volume is addressable. */ 24483bdb8efdSPatrick J. LoPresti status = ocfs2_journal_addressable(osb); 24493bdb8efdSPatrick J. LoPresti if (status) 24503bdb8efdSPatrick J. LoPresti goto finally; 24513bdb8efdSPatrick J. LoPresti 2452ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2453ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2454ccd979bdSMark Fasheh * dirty work for us :) */ 2455ccd979bdSMark Fasheh if (!dirty) { 2456ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2457ccd979bdSMark Fasheh if (status < 0) { 2458ccd979bdSMark Fasheh mlog_errno(status); 2459ccd979bdSMark Fasheh goto finally; 2460ccd979bdSMark Fasheh } 2461ccd979bdSMark Fasheh } else { 2462619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: File system on device (%s) was not " 2463619c200dSSunil Mushran "unmounted cleanly, recovering it.\n", osb->dev_str); 2464ccd979bdSMark Fasheh } 2465ccd979bdSMark Fasheh 2466c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2467c271c5c2SSunil Mushran 2468ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2469539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 247001af4820SWengang Wang if (status < 0) { 247101af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 247201af4820SWengang Wang goto finally; 247301af4820SWengang Wang } 2474ccd979bdSMark Fasheh 24751dfeb768Salex chen if (osb->s_mount_opt & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 24761dfeb768Salex chen jbd2_journal_set_features(osb->journal->j_journal, 24771dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24781dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24791dfeb768Salex chen else 24801dfeb768Salex chen jbd2_journal_clear_features(osb->journal->j_journal, 24811dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24821dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24831dfeb768Salex chen 2484ccd979bdSMark Fasheh if (dirty) { 2485ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2486ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2487ccd979bdSMark Fasheh osb->slot_num, 2488ccd979bdSMark Fasheh &local_alloc); 2489ccd979bdSMark Fasheh if (status < 0) { 2490ccd979bdSMark Fasheh mlog_errno(status); 2491ccd979bdSMark Fasheh goto finally; 2492ccd979bdSMark Fasheh } 2493ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2494ccd979bdSMark Fasheh * ourselves as mounted. */ 2495ccd979bdSMark Fasheh } 2496ccd979bdSMark Fasheh 2497ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2498ccd979bdSMark Fasheh if (status < 0) { 2499ccd979bdSMark Fasheh mlog_errno(status); 2500ccd979bdSMark Fasheh goto finally; 2501ccd979bdSMark Fasheh } 2502ccd979bdSMark Fasheh 2503ccd979bdSMark Fasheh if (dirty) { 2504ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2505ccd979bdSMark Fasheh * rest of the volume. */ 2506ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2507ccd979bdSMark Fasheh local_alloc = NULL; 2508ccd979bdSMark Fasheh } 2509ccd979bdSMark Fasheh 2510ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2511ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2512ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2513ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 25149140db04SSrinivas Eeda if (status < 0) { 25159140db04SSrinivas Eeda mlog_errno(status); 25169140db04SSrinivas Eeda goto finally; 25179140db04SSrinivas Eeda } 25189140db04SSrinivas Eeda 25199140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2520ccd979bdSMark Fasheh if (status < 0) 2521ccd979bdSMark Fasheh mlog_errno(status); 2522ccd979bdSMark Fasheh 2523ccd979bdSMark Fasheh finally: 2524ccd979bdSMark Fasheh kfree(local_alloc); 2525ccd979bdSMark Fasheh 2526c1e8d35eSTao Ma if (status) 2527c1e8d35eSTao Ma mlog_errno(status); 2528ccd979bdSMark Fasheh return status; 2529ccd979bdSMark Fasheh } 2530ccd979bdSMark Fasheh 2531ccd979bdSMark Fasheh /* 2532ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2533ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2534ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2535ccd979bdSMark Fasheh * initialized resources and fileobject. 2536ccd979bdSMark Fasheh */ 2537ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2538ccd979bdSMark Fasheh { 2539ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2540ccd979bdSMark Fasheh 254135ddf78eSjiangyiwen /* ocfs2_initializer_super have already created this workqueue */ 254223e0813aSpiaojun if (osb->ocfs2_wq) 254335ddf78eSjiangyiwen destroy_workqueue(osb->ocfs2_wq); 254435ddf78eSjiangyiwen 25458e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2546ccd979bdSMark Fasheh 2547b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2548539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2549ccd979bdSMark Fasheh /* FIXME 2550ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2551421f91d2SUwe Kleine-König * allocate osb->journal at the start of ocfs2_initialize_osb(), 2552ccd979bdSMark Fasheh * we free it here. 2553ccd979bdSMark Fasheh */ 2554ccd979bdSMark Fasheh kfree(osb->journal); 2555ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2556ccd979bdSMark Fasheh kfree(osb->uuid_str); 2557f13a568eSJoseph Qi kfree(osb->vol_label); 2558ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2559ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2560ccd979bdSMark Fasheh } 2561ccd979bdSMark Fasheh 25627d0fb914SGoldwyn Rodrigues /* Depending on the mount option passed, perform one of the following: 25637d0fb914SGoldwyn Rodrigues * Put OCFS2 into a readonly state (default) 25647d0fb914SGoldwyn Rodrigues * Return EIO so that only the process errs 25657d0fb914SGoldwyn Rodrigues * Fix the error as if fsck.ocfs2 -y 25667d0fb914SGoldwyn Rodrigues * panic 25677d0fb914SGoldwyn Rodrigues */ 25687d0fb914SGoldwyn Rodrigues static int ocfs2_handle_error(struct super_block *sb) 2569ccd979bdSMark Fasheh { 2570ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 25717d0fb914SGoldwyn Rodrigues int rv = 0; 2572ccd979bdSMark Fasheh 2573ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 25747d0fb914SGoldwyn Rodrigues pr_crit("On-disk corruption discovered. " 25757d0fb914SGoldwyn Rodrigues "Please run fsck.ocfs2 once the filesystem is unmounted.\n"); 2576ccd979bdSMark Fasheh 25777d0fb914SGoldwyn Rodrigues if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) { 25787d0fb914SGoldwyn Rodrigues panic("OCFS2: (device %s): panic forced after error\n", 25797d0fb914SGoldwyn Rodrigues sb->s_id); 25807d0fb914SGoldwyn Rodrigues } else if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_CONT) { 25817d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: Returning error to the calling process.\n"); 25827d0fb914SGoldwyn Rodrigues rv = -EIO; 25837d0fb914SGoldwyn Rodrigues } else { /* default option */ 25847d0fb914SGoldwyn Rodrigues rv = -EROFS; 2585bc98a42cSDavid Howells if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb))) 25867d0fb914SGoldwyn Rodrigues return rv; 2587ccd979bdSMark Fasheh 25887d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: File system is now read-only.\n"); 25891751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 2590ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2591ccd979bdSMark Fasheh } 2592ccd979bdSMark Fasheh 25937d0fb914SGoldwyn Rodrigues return rv; 25947d0fb914SGoldwyn Rodrigues } 25957d0fb914SGoldwyn Rodrigues 25967d0fb914SGoldwyn Rodrigues int __ocfs2_error(struct super_block *sb, const char *function, 2597ccd979bdSMark Fasheh const char *fmt, ...) 2598ccd979bdSMark Fasheh { 25991543306eSJoe Perches struct va_format vaf; 2600ccd979bdSMark Fasheh va_list args; 2601ccd979bdSMark Fasheh 2602ccd979bdSMark Fasheh va_start(args, fmt); 26031543306eSJoe Perches vaf.fmt = fmt; 26041543306eSJoe Perches vaf.va = &args; 2605ccd979bdSMark Fasheh 2606ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2607ccd979bdSMark Fasheh * function the error came from. */ 26087ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %pV", 26091543306eSJoe Perches sb->s_id, function, &vaf); 26101543306eSJoe Perches 26111543306eSJoe Perches va_end(args); 2612ccd979bdSMark Fasheh 26137d0fb914SGoldwyn Rodrigues return ocfs2_handle_error(sb); 2614ccd979bdSMark Fasheh } 2615ccd979bdSMark Fasheh 2616ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2617ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2618ccd979bdSMark Fasheh * etc. */ 26191543306eSJoe Perches void __ocfs2_abort(struct super_block *sb, const char *function, 2620ccd979bdSMark Fasheh const char *fmt, ...) 2621ccd979bdSMark Fasheh { 26221543306eSJoe Perches struct va_format vaf; 2623ccd979bdSMark Fasheh va_list args; 2624ccd979bdSMark Fasheh 2625ccd979bdSMark Fasheh va_start(args, fmt); 2626ccd979bdSMark Fasheh 26271543306eSJoe Perches vaf.fmt = fmt; 26281543306eSJoe Perches vaf.va = &args; 26291543306eSJoe Perches 26307ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: abort (device %s): %s: %pV", 26311543306eSJoe Perches sb->s_id, function, &vaf); 26321543306eSJoe Perches 26331543306eSJoe Perches va_end(args); 2634ccd979bdSMark Fasheh 2635ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2636ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2637ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2638ccd979bdSMark Fasheh * errors. 2639ccd979bdSMark Fasheh * 2640ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2641ccd979bdSMark Fasheh * that our slot needs recovery. */ 2642ccd979bdSMark Fasheh 2643ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2644ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2645ccd979bdSMark Fasheh * here. */ 2646a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2647ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2648ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2649ccd979bdSMark Fasheh } 2650ccd979bdSMark Fasheh 2651e4b963f1SJoel Becker /* 2652e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2653e4b963f1SJoel Becker * when SIG_* is wrong. 2654e4b963f1SJoel Becker */ 2655e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2656e4b963f1SJoel Becker { 2657e4b963f1SJoel Becker int rc; 2658e4b963f1SJoel Becker sigset_t blocked; 2659e4b963f1SJoel Becker 2660e4b963f1SJoel Becker sigfillset(&blocked); 2661e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2662e4b963f1SJoel Becker BUG_ON(rc); 2663e4b963f1SJoel Becker } 2664e4b963f1SJoel Becker 2665e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2666e4b963f1SJoel Becker { 2667e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2668e4b963f1SJoel Becker BUG_ON(rc); 2669e4b963f1SJoel Becker } 2670e4b963f1SJoel Becker 2671ccd979bdSMark Fasheh module_init(ocfs2_init); 2672ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2673