1ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 2ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 3ccd979bdSMark Fasheh * 4ccd979bdSMark Fasheh * super.c 5ccd979bdSMark Fasheh * 6ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 7ccd979bdSMark Fasheh * 8ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 9ccd979bdSMark Fasheh * 10ccd979bdSMark Fasheh * This program is free software; you can redistribute it and/or 11ccd979bdSMark Fasheh * modify it under the terms of the GNU General Public 12ccd979bdSMark Fasheh * License as published by the Free Software Foundation; either 13ccd979bdSMark Fasheh * version 2 of the License, or (at your option) any later version. 14ccd979bdSMark Fasheh * 15ccd979bdSMark Fasheh * This program is distributed in the hope that it will be useful, 16ccd979bdSMark Fasheh * but WITHOUT ANY WARRANTY; without even the implied warranty of 17ccd979bdSMark Fasheh * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18ccd979bdSMark Fasheh * General Public License for more details. 19ccd979bdSMark Fasheh * 20ccd979bdSMark Fasheh * You should have received a copy of the GNU General Public 21ccd979bdSMark Fasheh * License along with this program; if not, write to the 22ccd979bdSMark Fasheh * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23ccd979bdSMark Fasheh * Boston, MA 021110-1307, USA. 24ccd979bdSMark Fasheh */ 25ccd979bdSMark Fasheh 26ccd979bdSMark Fasheh #include <linux/module.h> 27ccd979bdSMark Fasheh #include <linux/fs.h> 28ccd979bdSMark Fasheh #include <linux/types.h> 29ccd979bdSMark Fasheh #include <linux/slab.h> 30ccd979bdSMark Fasheh #include <linux/highmem.h> 31ccd979bdSMark Fasheh #include <linux/utsname.h> 32ccd979bdSMark Fasheh #include <linux/init.h> 33ccd979bdSMark Fasheh #include <linux/random.h> 34ccd979bdSMark Fasheh #include <linux/statfs.h> 35ccd979bdSMark Fasheh #include <linux/moduleparam.h> 36ccd979bdSMark Fasheh #include <linux/blkdev.h> 37ccd979bdSMark Fasheh #include <linux/socket.h> 38ccd979bdSMark Fasheh #include <linux/inet.h> 39ccd979bdSMark Fasheh #include <linux/parser.h> 40ccd979bdSMark Fasheh #include <linux/crc32.h> 41ccd979bdSMark Fasheh #include <linux/debugfs.h> 42d550071cSSunil Mushran #include <linux/mount.h> 436953b4c0SJoel Becker #include <linux/seq_file.h> 4419ece546SJan Kara #include <linux/quotaops.h> 45ccd979bdSMark Fasheh 46ccd979bdSMark Fasheh #define MLOG_MASK_PREFIX ML_SUPER 47ccd979bdSMark Fasheh #include <cluster/masklog.h> 48ccd979bdSMark Fasheh 49ccd979bdSMark Fasheh #include "ocfs2.h" 50ccd979bdSMark Fasheh 51ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 52ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 53ccd979bdSMark Fasheh 54ccd979bdSMark Fasheh #include "alloc.h" 55d030cc97SJoel Becker #include "blockcheck.h" 56ccd979bdSMark Fasheh #include "dlmglue.h" 57ccd979bdSMark Fasheh #include "export.h" 58ccd979bdSMark Fasheh #include "extent_map.h" 59ccd979bdSMark Fasheh #include "heartbeat.h" 60ccd979bdSMark Fasheh #include "inode.h" 61ccd979bdSMark Fasheh #include "journal.h" 62ccd979bdSMark Fasheh #include "localalloc.h" 63ccd979bdSMark Fasheh #include "namei.h" 64ccd979bdSMark Fasheh #include "slot_map.h" 65ccd979bdSMark Fasheh #include "super.h" 66ccd979bdSMark Fasheh #include "sysfile.h" 67ccd979bdSMark Fasheh #include "uptodate.h" 68ccd979bdSMark Fasheh #include "ver.h" 69cf1d6c76STiger Yang #include "xattr.h" 709e33d69fSJan Kara #include "quota.h" 71ccd979bdSMark Fasheh 72ccd979bdSMark Fasheh #include "buffer_head_io.h" 73ccd979bdSMark Fasheh 74e18b890bSChristoph Lameter static struct kmem_cache *ocfs2_inode_cachep = NULL; 759e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 769e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 77ccd979bdSMark Fasheh 78ccd979bdSMark Fasheh /* OCFS2 needs to schedule several differnt types of work which 79ccd979bdSMark Fasheh * require cluster locking, disk I/O, recovery waits, etc. Since these 80ccd979bdSMark Fasheh * types of work tend to be heavy we avoid using the kernel events 81ccd979bdSMark Fasheh * workqueue and schedule on our own. */ 82ccd979bdSMark Fasheh struct workqueue_struct *ocfs2_wq = NULL; 83ccd979bdSMark Fasheh 84ccd979bdSMark Fasheh static struct dentry *ocfs2_debugfs_root = NULL; 85ccd979bdSMark Fasheh 86ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 87ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 88ccd979bdSMark Fasheh 89c0123adeSTiger Yang struct mount_options 90c0123adeSTiger Yang { 91d147b3d6SMark Fasheh unsigned long commit_interval; 92c0123adeSTiger Yang unsigned long mount_opt; 93c0123adeSTiger Yang unsigned int atime_quantum; 94c0123adeSTiger Yang signed short slot; 952fbe8d1eSSunil Mushran unsigned int localalloc_opt; 96b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 97c0123adeSTiger Yang }; 98c0123adeSTiger Yang 99ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 100c0123adeSTiger Yang struct mount_options *mopt, 101baf4661aSSunil Mushran int is_remount); 102d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); 103ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 104ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 105ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 106ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 107ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 108ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 109ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 110ccd979bdSMark Fasheh 111726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 112ccd979bdSMark Fasheh 113ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 114ccd979bdSMark Fasheh 115ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 116ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 117bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 118ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 119ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 120ccd979bdSMark Fasheh struct buffer_head *bh, 121ccd979bdSMark Fasheh u32 sectsize); 122ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 123ccd979bdSMark Fasheh struct buffer_head *bh, 124ccd979bdSMark Fasheh int sector_size); 125ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 126ccd979bdSMark Fasheh struct buffer_head **bh, 127ccd979bdSMark Fasheh int block, 128ccd979bdSMark Fasheh int sect_size); 129ccd979bdSMark Fasheh static void ocfs2_write_super(struct super_block *sb); 130ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 131ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode); 13219ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 13319ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 13419ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 135ccd979bdSMark Fasheh 136ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 137ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 138ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 139ccd979bdSMark Fasheh .destroy_inode = ocfs2_destroy_inode, 140ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 141ccd979bdSMark Fasheh .clear_inode = ocfs2_clear_inode, 142ccd979bdSMark Fasheh .delete_inode = ocfs2_delete_inode, 143ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 144ccd979bdSMark Fasheh .write_super = ocfs2_write_super, 145ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 146ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 147d550071cSSunil Mushran .show_options = ocfs2_show_options, 1489e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1499e33d69fSJan Kara .quota_write = ocfs2_quota_write, 150ccd979bdSMark Fasheh }; 151ccd979bdSMark Fasheh 152ccd979bdSMark Fasheh enum { 153ccd979bdSMark Fasheh Opt_barrier, 154ccd979bdSMark Fasheh Opt_err_panic, 155ccd979bdSMark Fasheh Opt_err_ro, 156ccd979bdSMark Fasheh Opt_intr, 157ccd979bdSMark Fasheh Opt_nointr, 158ccd979bdSMark Fasheh Opt_hb_none, 159ccd979bdSMark Fasheh Opt_hb_local, 160ccd979bdSMark Fasheh Opt_data_ordered, 161ccd979bdSMark Fasheh Opt_data_writeback, 1627f1a37e3STiger Yang Opt_atime_quantum, 163baf4661aSSunil Mushran Opt_slot, 164d147b3d6SMark Fasheh Opt_commit, 1652fbe8d1eSSunil Mushran Opt_localalloc, 16653fc622bSMark Fasheh Opt_localflocks, 167b61817e1SJoel Becker Opt_stack, 168cf1d6c76STiger Yang Opt_user_xattr, 169cf1d6c76STiger Yang Opt_nouser_xattr, 17012462f1dSJoel Becker Opt_inode64, 171a68979b8STiger Yang Opt_acl, 172a68979b8STiger Yang Opt_noacl, 17319ece546SJan Kara Opt_usrquota, 17419ece546SJan Kara Opt_grpquota, 175ccd979bdSMark Fasheh Opt_err, 176ccd979bdSMark Fasheh }; 177ccd979bdSMark Fasheh 178a447c093SSteven Whitehouse static const match_table_t tokens = { 179ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 180ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 181ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 182ccd979bdSMark Fasheh {Opt_intr, "intr"}, 183ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 184ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 185ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 186ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 187ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1887f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 189baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 190d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1912fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19253fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 193b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 194cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 195cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 19612462f1dSJoel Becker {Opt_inode64, "inode64"}, 197a68979b8STiger Yang {Opt_acl, "acl"}, 198a68979b8STiger Yang {Opt_noacl, "noacl"}, 19919ece546SJan Kara {Opt_usrquota, "usrquota"}, 20019ece546SJan Kara {Opt_grpquota, "grpquota"}, 201ccd979bdSMark Fasheh {Opt_err, NULL} 202ccd979bdSMark Fasheh }; 203ccd979bdSMark Fasheh 204ccd979bdSMark Fasheh /* 205ccd979bdSMark Fasheh * write_super and sync_fs ripped right out of ext3. 206ccd979bdSMark Fasheh */ 207ccd979bdSMark Fasheh static void ocfs2_write_super(struct super_block *sb) 208ccd979bdSMark Fasheh { 2097892f2f4SIngo Molnar if (mutex_trylock(&sb->s_lock) != 0) 210ccd979bdSMark Fasheh BUG(); 211ccd979bdSMark Fasheh sb->s_dirt = 0; 212ccd979bdSMark Fasheh } 213ccd979bdSMark Fasheh 214ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 215ccd979bdSMark Fasheh { 216bddb8eb3SDenis Cheng int status; 217ccd979bdSMark Fasheh tid_t target; 218ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 219ccd979bdSMark Fasheh 220ccd979bdSMark Fasheh sb->s_dirt = 0; 221ccd979bdSMark Fasheh 222ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 223ccd979bdSMark Fasheh return -EROFS; 224ccd979bdSMark Fasheh 225ccd979bdSMark Fasheh if (wait) { 226ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 227ccd979bdSMark Fasheh if (status < 0) 228ccd979bdSMark Fasheh mlog_errno(status); 229ccd979bdSMark Fasheh } else { 230ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 231ccd979bdSMark Fasheh } 232ccd979bdSMark Fasheh 2332b4e30fbSJoel Becker if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, 2342b4e30fbSJoel Becker &target)) { 235ccd979bdSMark Fasheh if (wait) 2362b4e30fbSJoel Becker jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, 237ccd979bdSMark Fasheh target); 238ccd979bdSMark Fasheh } 239ccd979bdSMark Fasheh return 0; 240ccd979bdSMark Fasheh } 241ccd979bdSMark Fasheh 2421a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 2431a224ad1SJan Kara { 2441a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 2451a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 2461a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 2471a224ad1SJan Kara return 0; 2481a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 2491a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 2501a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 2511a224ad1SJan Kara return 0; 2521a224ad1SJan Kara return 1; 2531a224ad1SJan Kara } 2541a224ad1SJan Kara 255ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 256ccd979bdSMark Fasheh { 257ccd979bdSMark Fasheh struct inode *new = NULL; 258ccd979bdSMark Fasheh int status = 0; 259ccd979bdSMark Fasheh int i; 260ccd979bdSMark Fasheh 261ccd979bdSMark Fasheh mlog_entry_void(); 262ccd979bdSMark Fasheh 2635fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 264ccd979bdSMark Fasheh if (IS_ERR(new)) { 265ccd979bdSMark Fasheh status = PTR_ERR(new); 266ccd979bdSMark Fasheh mlog_errno(status); 267ccd979bdSMark Fasheh goto bail; 268ccd979bdSMark Fasheh } 269ccd979bdSMark Fasheh osb->root_inode = new; 270ccd979bdSMark Fasheh 2715fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 272ccd979bdSMark Fasheh if (IS_ERR(new)) { 273ccd979bdSMark Fasheh status = PTR_ERR(new); 274ccd979bdSMark Fasheh mlog_errno(status); 275ccd979bdSMark Fasheh goto bail; 276ccd979bdSMark Fasheh } 277ccd979bdSMark Fasheh osb->sys_root_inode = new; 278ccd979bdSMark Fasheh 279ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 280ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 2811a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 2821a224ad1SJan Kara continue; 283ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 284ccd979bdSMark Fasheh if (!new) { 285ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 286ccd979bdSMark Fasheh status = -EINVAL; 287ccd979bdSMark Fasheh mlog_errno(status); 288ccd979bdSMark Fasheh /* FIXME: Should ERROR_RO_FS */ 289ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 290ccd979bdSMark Fasheh "possibly corrupt fs?", i); 291ccd979bdSMark Fasheh goto bail; 292ccd979bdSMark Fasheh } 293ccd979bdSMark Fasheh // the array now has one ref, so drop this one 294ccd979bdSMark Fasheh iput(new); 295ccd979bdSMark Fasheh } 296ccd979bdSMark Fasheh 297ccd979bdSMark Fasheh bail: 298ccd979bdSMark Fasheh mlog_exit(status); 299ccd979bdSMark Fasheh return status; 300ccd979bdSMark Fasheh } 301ccd979bdSMark Fasheh 302ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 303ccd979bdSMark Fasheh { 304ccd979bdSMark Fasheh struct inode *new = NULL; 305ccd979bdSMark Fasheh int status = 0; 306ccd979bdSMark Fasheh int i; 307ccd979bdSMark Fasheh 308ccd979bdSMark Fasheh mlog_entry_void(); 309ccd979bdSMark Fasheh 310ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 311ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 312ccd979bdSMark Fasheh i++) { 3131a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 3141a224ad1SJan Kara continue; 315ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 316ccd979bdSMark Fasheh if (!new) { 317ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 318ccd979bdSMark Fasheh status = -EINVAL; 319ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 320ccd979bdSMark Fasheh status, i, osb->slot_num); 321ccd979bdSMark Fasheh goto bail; 322ccd979bdSMark Fasheh } 323ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 324ccd979bdSMark Fasheh iput(new); 325ccd979bdSMark Fasheh } 326ccd979bdSMark Fasheh 327ccd979bdSMark Fasheh bail: 328ccd979bdSMark Fasheh mlog_exit(status); 329ccd979bdSMark Fasheh return status; 330ccd979bdSMark Fasheh } 331ccd979bdSMark Fasheh 332bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 333ccd979bdSMark Fasheh { 334bddb8eb3SDenis Cheng int i; 335ccd979bdSMark Fasheh struct inode *inode; 336ccd979bdSMark Fasheh 337ccd979bdSMark Fasheh mlog_entry_void(); 338ccd979bdSMark Fasheh 339ccd979bdSMark Fasheh for (i = 0; i < NUM_SYSTEM_INODES; i++) { 340ccd979bdSMark Fasheh inode = osb->system_inodes[i]; 341ccd979bdSMark Fasheh if (inode) { 342ccd979bdSMark Fasheh iput(inode); 343ccd979bdSMark Fasheh osb->system_inodes[i] = NULL; 344ccd979bdSMark Fasheh } 345ccd979bdSMark Fasheh } 346ccd979bdSMark Fasheh 347ccd979bdSMark Fasheh inode = osb->sys_root_inode; 348ccd979bdSMark Fasheh if (inode) { 349ccd979bdSMark Fasheh iput(inode); 350ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 351ccd979bdSMark Fasheh } 352ccd979bdSMark Fasheh 353ccd979bdSMark Fasheh inode = osb->root_inode; 354ccd979bdSMark Fasheh if (inode) { 355ccd979bdSMark Fasheh iput(inode); 356ccd979bdSMark Fasheh osb->root_inode = NULL; 357ccd979bdSMark Fasheh } 358ccd979bdSMark Fasheh 359bddb8eb3SDenis Cheng mlog_exit(0); 360ccd979bdSMark Fasheh } 361ccd979bdSMark Fasheh 362ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 363ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 364ccd979bdSMark Fasheh { 365ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 366ccd979bdSMark Fasheh 367e6b4f8daSChristoph Lameter oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); 368ccd979bdSMark Fasheh if (!oi) 369ccd979bdSMark Fasheh return NULL; 370ccd979bdSMark Fasheh 3712b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 372ccd979bdSMark Fasheh return &oi->vfs_inode; 373ccd979bdSMark Fasheh } 374ccd979bdSMark Fasheh 375ccd979bdSMark Fasheh static void ocfs2_destroy_inode(struct inode *inode) 376ccd979bdSMark Fasheh { 377ccd979bdSMark Fasheh kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 378ccd979bdSMark Fasheh } 379ccd979bdSMark Fasheh 3805a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 3815a254031SMark Fasheh unsigned int cbits) 382ccd979bdSMark Fasheh { 3835a254031SMark Fasheh unsigned int bytes = 1 << cbits; 3845a254031SMark Fasheh unsigned int trim = bytes; 3855a254031SMark Fasheh unsigned int bitshift = 32; 386ccd979bdSMark Fasheh 3875a254031SMark Fasheh /* 3885a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 3895a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 3905a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 391ccd979bdSMark Fasheh */ 392ccd979bdSMark Fasheh 393ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 394ccd979bdSMark Fasheh # if defined(CONFIG_LBD) 3952ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 3965a254031SMark Fasheh /* 3975a254031SMark Fasheh * We might be limited by page cache size. 3985a254031SMark Fasheh */ 3995a254031SMark Fasheh if (bytes > PAGE_CACHE_SIZE) { 4005a254031SMark Fasheh bytes = PAGE_CACHE_SIZE; 4015a254031SMark Fasheh trim = 1; 4025a254031SMark Fasheh /* 4035a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 4045a254031SMark Fasheh * MAX_LFS_FILESIZE 4055a254031SMark Fasheh */ 4065a254031SMark Fasheh bitshift = 31; 4075a254031SMark Fasheh } 408ccd979bdSMark Fasheh # else 4095a254031SMark Fasheh /* 4105a254031SMark Fasheh * We are limited by the size of sector_t. Use block size, as 4115a254031SMark Fasheh * that's what we expose to the VFS. 4125a254031SMark Fasheh */ 4135a254031SMark Fasheh bytes = 1 << bbits; 4145a254031SMark Fasheh trim = 1; 4155a254031SMark Fasheh bitshift = 31; 416ccd979bdSMark Fasheh # endif 417ccd979bdSMark Fasheh #endif 418ccd979bdSMark Fasheh 4195a254031SMark Fasheh /* 4205a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 4215a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 4225a254031SMark Fasheh * an extent start is at the max offset. 4235a254031SMark Fasheh */ 4245a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 425ccd979bdSMark Fasheh } 426ccd979bdSMark Fasheh 427ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 428ccd979bdSMark Fasheh { 429ccd979bdSMark Fasheh int incompat_features; 430ccd979bdSMark Fasheh int ret = 0; 431c0123adeSTiger Yang struct mount_options parsed_options; 432ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 433ccd979bdSMark Fasheh 434c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 1)) { 435ccd979bdSMark Fasheh ret = -EINVAL; 436ccd979bdSMark Fasheh goto out; 437ccd979bdSMark Fasheh } 438ccd979bdSMark Fasheh 439ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != 440c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 441ccd979bdSMark Fasheh ret = -EINVAL; 442ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 443ccd979bdSMark Fasheh goto out; 444ccd979bdSMark Fasheh } 445ccd979bdSMark Fasheh 446ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 447c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 448ccd979bdSMark Fasheh ret = -EINVAL; 449ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 450ccd979bdSMark Fasheh goto out; 451ccd979bdSMark Fasheh } 452ccd979bdSMark Fasheh 45312462f1dSJoel Becker /* Probably don't want this on remount; it might 45412462f1dSJoel Becker * mess with other nodes */ 45512462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 45612462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 45712462f1dSJoel Becker ret = -EINVAL; 45812462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 45912462f1dSJoel Becker goto out; 46012462f1dSJoel Becker } 46112462f1dSJoel Becker 462ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 463ccd979bdSMark Fasheh if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { 46419ece546SJan Kara /* Disable quota accounting before remounting RO */ 46519ece546SJan Kara if (*flags & MS_RDONLY) { 46619ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 46719ece546SJan Kara if (ret < 0) 46819ece546SJan Kara goto out; 46919ece546SJan Kara } 470ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 471ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 472ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 473ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 474ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 475ccd979bdSMark Fasheh ret = -EROFS; 476ccd979bdSMark Fasheh goto unlock_osb; 477ccd979bdSMark Fasheh } 478ccd979bdSMark Fasheh 479ccd979bdSMark Fasheh if (*flags & MS_RDONLY) { 480ccd979bdSMark Fasheh mlog(0, "Going to ro mode.\n"); 481ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 482ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 483ccd979bdSMark Fasheh } else { 484ccd979bdSMark Fasheh mlog(0, "Making ro filesystem writeable.\n"); 485ccd979bdSMark Fasheh 486ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 487ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 488ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 489ccd979bdSMark Fasheh ret = -EROFS; 490ccd979bdSMark Fasheh goto unlock_osb; 491ccd979bdSMark Fasheh } 492ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 493ccd979bdSMark Fasheh if (incompat_features) { 494ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 495ccd979bdSMark Fasheh "of unsupported optional features " 496ccd979bdSMark Fasheh "(%x).\n", incompat_features); 497ccd979bdSMark Fasheh ret = -EINVAL; 498ccd979bdSMark Fasheh goto unlock_osb; 499ccd979bdSMark Fasheh } 500ccd979bdSMark Fasheh sb->s_flags &= ~MS_RDONLY; 501ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 502ccd979bdSMark Fasheh } 503ccd979bdSMark Fasheh unlock_osb: 504ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 50519ece546SJan Kara /* Enable quota accounting after remounting RW */ 50619ece546SJan Kara if (!ret && !(*flags & MS_RDONLY)) { 50719ece546SJan Kara if (sb_any_quota_suspended(sb)) 50819ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 50919ece546SJan Kara else 51019ece546SJan Kara ret = ocfs2_enable_quotas(osb); 51119ece546SJan Kara if (ret < 0) { 51219ece546SJan Kara /* Return back changes... */ 51319ece546SJan Kara spin_lock(&osb->osb_lock); 51419ece546SJan Kara sb->s_flags |= MS_RDONLY; 51519ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 51619ece546SJan Kara spin_unlock(&osb->osb_lock); 51719ece546SJan Kara goto out; 51819ece546SJan Kara } 51919ece546SJan Kara } 520ccd979bdSMark Fasheh } 521ccd979bdSMark Fasheh 522ccd979bdSMark Fasheh if (!ret) { 523ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 524ccd979bdSMark Fasheh * remount. */ 525a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 526a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 527c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 528c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 529c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 530d147b3d6SMark Fasheh if (parsed_options.commit_interval) 531d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 532e001e796SMark Fasheh 533e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 534e001e796SMark Fasheh ocfs2_set_journal_params(osb); 535ccd979bdSMark Fasheh } 536ccd979bdSMark Fasheh out: 537ccd979bdSMark Fasheh return ret; 538ccd979bdSMark Fasheh } 539ccd979bdSMark Fasheh 540ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 541ccd979bdSMark Fasheh struct buffer_head **bh, 542ccd979bdSMark Fasheh int *sector_size) 543ccd979bdSMark Fasheh { 544bddb8eb3SDenis Cheng int status, tmpstat; 545ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 546ccd979bdSMark Fasheh struct ocfs2_dinode *di; 547ccd979bdSMark Fasheh int blksize; 548ccd979bdSMark Fasheh 549ccd979bdSMark Fasheh *bh = NULL; 550ccd979bdSMark Fasheh 551ccd979bdSMark Fasheh /* may be > 512 */ 552ccd979bdSMark Fasheh *sector_size = bdev_hardsect_size(sb->s_bdev); 553ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 554ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 555ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 556ccd979bdSMark Fasheh status = -EINVAL; 557ccd979bdSMark Fasheh goto bail; 558ccd979bdSMark Fasheh } 559ccd979bdSMark Fasheh 560ccd979bdSMark Fasheh /* Can this really happen? */ 561ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 562ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 563ccd979bdSMark Fasheh 564ccd979bdSMark Fasheh /* check block zero for old format */ 565ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 566ccd979bdSMark Fasheh if (status < 0) { 567ccd979bdSMark Fasheh mlog_errno(status); 568ccd979bdSMark Fasheh goto bail; 569ccd979bdSMark Fasheh } 570ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 571ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 572ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 573ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 574ccd979bdSMark Fasheh status = -EINVAL; 575ccd979bdSMark Fasheh } 576ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 577ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 578ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 579ccd979bdSMark Fasheh hdr->signature); 580ccd979bdSMark Fasheh status = -EINVAL; 581ccd979bdSMark Fasheh } 582ccd979bdSMark Fasheh brelse(*bh); 583ccd979bdSMark Fasheh *bh = NULL; 584ccd979bdSMark Fasheh if (status < 0) { 585ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 586ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 587ccd979bdSMark Fasheh goto bail; 588ccd979bdSMark Fasheh } 589ccd979bdSMark Fasheh 590ccd979bdSMark Fasheh /* 591ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 592ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 593ccd979bdSMark Fasheh * the minimum clustersize. 594ccd979bdSMark Fasheh */ 595ccd979bdSMark Fasheh status = -EINVAL; 596ccd979bdSMark Fasheh for (blksize = *sector_size; 597ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 598ccd979bdSMark Fasheh blksize <<= 1) { 599ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 600ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 601ccd979bdSMark Fasheh blksize); 602ccd979bdSMark Fasheh if (tmpstat < 0) { 603ccd979bdSMark Fasheh status = tmpstat; 604ccd979bdSMark Fasheh mlog_errno(status); 605ccd979bdSMark Fasheh goto bail; 606ccd979bdSMark Fasheh } 607ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 608ccd979bdSMark Fasheh status = ocfs2_verify_volume(di, *bh, blksize); 609ccd979bdSMark Fasheh if (status >= 0) 610ccd979bdSMark Fasheh goto bail; 611ccd979bdSMark Fasheh brelse(*bh); 612ccd979bdSMark Fasheh *bh = NULL; 613ccd979bdSMark Fasheh if (status != -EAGAIN) 614ccd979bdSMark Fasheh break; 615ccd979bdSMark Fasheh } 616ccd979bdSMark Fasheh 617ccd979bdSMark Fasheh bail: 618ccd979bdSMark Fasheh return status; 619ccd979bdSMark Fasheh } 620ccd979bdSMark Fasheh 621c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 622c271c5c2SSunil Mushran { 623c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 624c271c5c2SSunil Mushran if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 625c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 626c271c5c2SSunil Mushran "mounted device.\n"); 627c271c5c2SSunil Mushran return -EINVAL; 628c271c5c2SSunil Mushran } 629c271c5c2SSunil Mushran } 630c271c5c2SSunil Mushran 631b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 632b61817e1SJoel Becker if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 633b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 634b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 635b61817e1SJoel Becker return -EINVAL; 636b61817e1SJoel Becker } 637b61817e1SJoel Becker } 638b61817e1SJoel Becker 639c271c5c2SSunil Mushran if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { 640b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 641b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 642c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 643c271c5c2SSunil Mushran "a read-write clustered device.\n"); 644c271c5c2SSunil Mushran return -EINVAL; 645c271c5c2SSunil Mushran } 646c271c5c2SSunil Mushran } 647c271c5c2SSunil Mushran 648c271c5c2SSunil Mushran return 0; 649c271c5c2SSunil Mushran } 650c271c5c2SSunil Mushran 651b61817e1SJoel Becker /* 652b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 653b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 654b61817e1SJoel Becker * have passed a stack. 655b61817e1SJoel Becker */ 656b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 657b61817e1SJoel Becker struct mount_options *mopt) 658b61817e1SJoel Becker { 659b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 660b61817e1SJoel Becker mlog(ML_ERROR, 661b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 662b61817e1SJoel Becker "does not support it\n"); 663b61817e1SJoel Becker return -EINVAL; 664b61817e1SJoel Becker } 665b61817e1SJoel Becker 666b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 667b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 668b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 669b61817e1SJoel Becker mlog(ML_ERROR, 670b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 671b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 672b61817e1SJoel Becker mopt->cluster_stack, 673b61817e1SJoel Becker osb->osb_cluster_stack); 674b61817e1SJoel Becker return -EINVAL; 675b61817e1SJoel Becker } 676b61817e1SJoel Becker 677b61817e1SJoel Becker return 0; 678b61817e1SJoel Becker } 679b61817e1SJoel Becker 68019ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 68119ece546SJan Kara { 68219ece546SJan Kara int type; 68319ece546SJan Kara struct super_block *sb = osb->sb; 68419ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 68519ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 68619ece546SJan Kara int status = 0; 68719ece546SJan Kara 68819ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 68919ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 69019ece546SJan Kara continue; 69119ece546SJan Kara if (unsuspend) 69219ece546SJan Kara status = vfs_quota_enable( 69319ece546SJan Kara sb_dqopt(sb)->files[type], 69419ece546SJan Kara type, QFMT_OCFS2, 69519ece546SJan Kara DQUOT_SUSPENDED); 69619ece546SJan Kara else 69719ece546SJan Kara status = vfs_quota_disable(sb, type, 69819ece546SJan Kara DQUOT_SUSPENDED); 69919ece546SJan Kara if (status < 0) 70019ece546SJan Kara break; 70119ece546SJan Kara } 70219ece546SJan Kara if (status < 0) 70319ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 70419ece546SJan Kara "remount (error = %d).\n", status); 70519ece546SJan Kara return status; 70619ece546SJan Kara } 70719ece546SJan Kara 70819ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 70919ece546SJan Kara { 71019ece546SJan Kara struct inode *inode[MAXQUOTAS] = { NULL, NULL }; 71119ece546SJan Kara struct super_block *sb = osb->sb; 71219ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 71319ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 71419ece546SJan Kara unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, 71519ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 71619ece546SJan Kara int status; 71719ece546SJan Kara int type; 71819ece546SJan Kara 71919ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 72019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 72119ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 72219ece546SJan Kara continue; 72319ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 72419ece546SJan Kara osb->slot_num); 72519ece546SJan Kara if (!inode[type]) { 72619ece546SJan Kara status = -ENOENT; 72719ece546SJan Kara goto out_quota_off; 72819ece546SJan Kara } 72919ece546SJan Kara status = vfs_quota_enable(inode[type], type, QFMT_OCFS2, 73019ece546SJan Kara DQUOT_USAGE_ENABLED); 73119ece546SJan Kara if (status < 0) 73219ece546SJan Kara goto out_quota_off; 73319ece546SJan Kara } 73419ece546SJan Kara 73519ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 73619ece546SJan Kara iput(inode[type]); 73719ece546SJan Kara return 0; 73819ece546SJan Kara out_quota_off: 73919ece546SJan Kara ocfs2_disable_quotas(osb); 74019ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) 74119ece546SJan Kara iput(inode[type]); 74219ece546SJan Kara mlog_errno(status); 74319ece546SJan Kara return status; 74419ece546SJan Kara } 74519ece546SJan Kara 74619ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 74719ece546SJan Kara { 74819ece546SJan Kara int type; 74919ece546SJan Kara struct inode *inode; 75019ece546SJan Kara struct super_block *sb = osb->sb; 75119ece546SJan Kara 75219ece546SJan Kara /* We mostly ignore errors in this function because there's not much 75319ece546SJan Kara * we can do when we see them */ 75419ece546SJan Kara for (type = 0; type < MAXQUOTAS; type++) { 75519ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 75619ece546SJan Kara continue; 75719ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 75819ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 75919ece546SJan Kara * memory and so they will be automatically synced to global 76019ece546SJan Kara * quota files */ 76119ece546SJan Kara vfs_quota_disable(sb, type, DQUOT_USAGE_ENABLED | 76219ece546SJan Kara DQUOT_LIMITS_ENABLED); 76319ece546SJan Kara if (!inode) 76419ece546SJan Kara continue; 76519ece546SJan Kara iput(inode); 76619ece546SJan Kara } 76719ece546SJan Kara } 76819ece546SJan Kara 76919ece546SJan Kara /* Handle quota on quotactl */ 77019ece546SJan Kara static int ocfs2_quota_on(struct super_block *sb, int type, int format_id, 77119ece546SJan Kara char *path, int remount) 77219ece546SJan Kara { 77319ece546SJan Kara unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 77419ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 77519ece546SJan Kara 77619ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 77719ece546SJan Kara return -EINVAL; 77819ece546SJan Kara 77919ece546SJan Kara if (remount) 78019ece546SJan Kara return 0; /* Just ignore it has been handled in 78119ece546SJan Kara * ocfs2_remount() */ 78219ece546SJan Kara return vfs_quota_enable(sb_dqopt(sb)->files[type], type, 78319ece546SJan Kara format_id, DQUOT_LIMITS_ENABLED); 78419ece546SJan Kara } 78519ece546SJan Kara 78619ece546SJan Kara /* Handle quota off quotactl */ 78719ece546SJan Kara static int ocfs2_quota_off(struct super_block *sb, int type, int remount) 78819ece546SJan Kara { 78919ece546SJan Kara if (remount) 79019ece546SJan Kara return 0; /* Ignore now and handle later in 79119ece546SJan Kara * ocfs2_remount() */ 79219ece546SJan Kara return vfs_quota_disable(sb, type, DQUOT_LIMITS_ENABLED); 79319ece546SJan Kara } 79419ece546SJan Kara 79519ece546SJan Kara static struct quotactl_ops ocfs2_quotactl_ops = { 79619ece546SJan Kara .quota_on = ocfs2_quota_on, 79719ece546SJan Kara .quota_off = ocfs2_quota_off, 79819ece546SJan Kara .quota_sync = vfs_quota_sync, 79919ece546SJan Kara .get_info = vfs_get_dqinfo, 80019ece546SJan Kara .set_info = vfs_set_dqinfo, 80119ece546SJan Kara .get_dqblk = vfs_get_dqblk, 80219ece546SJan Kara .set_dqblk = vfs_set_dqblk, 80319ece546SJan Kara }; 80419ece546SJan Kara 805ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 806ccd979bdSMark Fasheh { 807ccd979bdSMark Fasheh struct dentry *root; 808ccd979bdSMark Fasheh int status, sector_size; 809c0123adeSTiger Yang struct mount_options parsed_options; 810ccd979bdSMark Fasheh struct inode *inode = NULL; 811ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 812ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 813c271c5c2SSunil Mushran char nodestr[8]; 814ccd979bdSMark Fasheh 815ccd979bdSMark Fasheh mlog_entry("%p, %p, %i", sb, data, silent); 816ccd979bdSMark Fasheh 817c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 818c271c5c2SSunil Mushran status = -EINVAL; 819c271c5c2SSunil Mushran goto read_super_error; 820c271c5c2SSunil Mushran } 821c271c5c2SSunil Mushran 822ccd979bdSMark Fasheh /* probe for superblock */ 823ccd979bdSMark Fasheh status = ocfs2_sb_probe(sb, &bh, §or_size); 824ccd979bdSMark Fasheh if (status < 0) { 825ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 826ccd979bdSMark Fasheh goto read_super_error; 827ccd979bdSMark Fasheh } 828ccd979bdSMark Fasheh 829ccd979bdSMark Fasheh status = ocfs2_initialize_super(sb, bh, sector_size); 830ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 831ccd979bdSMark Fasheh if (status < 0) { 832ccd979bdSMark Fasheh mlog_errno(status); 833ccd979bdSMark Fasheh goto read_super_error; 834ccd979bdSMark Fasheh } 835ccd979bdSMark Fasheh brelse(bh); 836ccd979bdSMark Fasheh bh = NULL; 837a68979b8STiger Yang 838a68979b8STiger Yang if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) 839a68979b8STiger Yang parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 840a68979b8STiger Yang 841c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 842c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 843c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 844d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 8459c7af40bSMark Fasheh osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt); 8469c7af40bSMark Fasheh osb->local_alloc_bits = osb->local_alloc_default_bits; 84719ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_USRQUOTA && 84819ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 84919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 85019ece546SJan Kara status = -EINVAL; 85119ece546SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 85219ece546SJan Kara "filesystem does not have the feature enabled.\n"); 85319ece546SJan Kara goto read_super_error; 85419ece546SJan Kara } 85519ece546SJan Kara if (osb->s_mount_opt & OCFS2_MOUNT_GRPQUOTA && 85619ece546SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 85719ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 85819ece546SJan Kara status = -EINVAL; 85919ece546SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 86019ece546SJan Kara "filesystem does not have the feature enabled.\n"); 86119ece546SJan Kara goto read_super_error; 86219ece546SJan Kara } 863ccd979bdSMark Fasheh 864b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 865b61817e1SJoel Becker if (status) 866b61817e1SJoel Becker goto read_super_error; 867b61817e1SJoel Becker 868ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 869ccd979bdSMark Fasheh 870a68979b8STiger Yang sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 871a68979b8STiger Yang ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 872a68979b8STiger Yang 873ccd979bdSMark Fasheh /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, 874ccd979bdSMark Fasheh * heartbeat=none */ 875ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 876ccd979bdSMark Fasheh if (!(sb->s_flags & MS_RDONLY)) { 877ccd979bdSMark Fasheh status = -EACCES; 878ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 879ccd979bdSMark Fasheh "mount was not specified.\n"); 880ccd979bdSMark Fasheh goto read_super_error; 881ccd979bdSMark Fasheh } 882ccd979bdSMark Fasheh 883ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 884ccd979bdSMark Fasheh * on a readonly device. */ 885ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 886ccd979bdSMark Fasheh status = -EROFS; 887ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 888ccd979bdSMark Fasheh "device.\n"); 889ccd979bdSMark Fasheh goto read_super_error; 890ccd979bdSMark Fasheh } 891ccd979bdSMark Fasheh 892ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 893ccd979bdSMark Fasheh if (status < 0) { 894ccd979bdSMark Fasheh if (status == -EROFS) 895ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 896ccd979bdSMark Fasheh "file system, but write access is " 897ccd979bdSMark Fasheh "unavailable.\n"); 898ccd979bdSMark Fasheh else 899ccd979bdSMark Fasheh mlog_errno(status); 900ccd979bdSMark Fasheh goto read_super_error; 901ccd979bdSMark Fasheh } 902ccd979bdSMark Fasheh 903ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 904ccd979bdSMark Fasheh 905ccd979bdSMark Fasheh printk(KERN_NOTICE "Readonly device detected. No cluster " 906ccd979bdSMark Fasheh "services will be utilized for this mount. Recovery " 907ccd979bdSMark Fasheh "will be skipped.\n"); 908ccd979bdSMark Fasheh } 909ccd979bdSMark Fasheh 910ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 911ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY) 912ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 913ccd979bdSMark Fasheh } 914ccd979bdSMark Fasheh 915c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 916c271c5c2SSunil Mushran if (status < 0) { 917c271c5c2SSunil Mushran mlog_errno(status); 918c271c5c2SSunil Mushran goto read_super_error; 919c271c5c2SSunil Mushran } 920c271c5c2SSunil Mushran 921ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 922ccd979bdSMark Fasheh ocfs2_debugfs_root); 923ccd979bdSMark Fasheh if (!osb->osb_debug_root) { 924ccd979bdSMark Fasheh status = -EINVAL; 925ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); 926ccd979bdSMark Fasheh goto read_super_error; 927ccd979bdSMark Fasheh } 928ccd979bdSMark Fasheh 929ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 930ccd979bdSMark Fasheh if (osb->root_inode) 931ccd979bdSMark Fasheh inode = igrab(osb->root_inode); 932ccd979bdSMark Fasheh 933ccd979bdSMark Fasheh if (status < 0) 934ccd979bdSMark Fasheh goto read_super_error; 935ccd979bdSMark Fasheh 936ccd979bdSMark Fasheh if (!inode) { 937ccd979bdSMark Fasheh status = -EIO; 938ccd979bdSMark Fasheh mlog_errno(status); 939ccd979bdSMark Fasheh goto read_super_error; 940ccd979bdSMark Fasheh } 941ccd979bdSMark Fasheh 942ccd979bdSMark Fasheh root = d_alloc_root(inode); 943ccd979bdSMark Fasheh if (!root) { 944ccd979bdSMark Fasheh status = -ENOMEM; 945ccd979bdSMark Fasheh mlog_errno(status); 946ccd979bdSMark Fasheh goto read_super_error; 947ccd979bdSMark Fasheh } 948ccd979bdSMark Fasheh 949ccd979bdSMark Fasheh sb->s_root = root; 950ccd979bdSMark Fasheh 951ccd979bdSMark Fasheh ocfs2_complete_mount_recovery(osb); 952ccd979bdSMark Fasheh 953c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 954c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 955c271c5c2SSunil Mushran else 95619fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 957c271c5c2SSunil Mushran 958c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 959781ee3e2SSunil Mushran "with %s data mode.\n", 960c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 961ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 962ccd979bdSMark Fasheh "ordered"); 963ccd979bdSMark Fasheh 964ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 965ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 966ccd979bdSMark Fasheh 96719ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 96819ece546SJan Kara * for cluster locks recovery now. That also means that truncation 96919ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 97019ece546SJan Kara if (!(sb->s_flags & MS_RDONLY)) { 97119ece546SJan Kara status = ocfs2_enable_quotas(osb); 97219ece546SJan Kara if (status < 0) { 97319ece546SJan Kara /* We have to err-out specially here because 97419ece546SJan Kara * s_root is already set */ 97519ece546SJan Kara mlog_errno(status); 97619ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 97719ece546SJan Kara wake_up(&osb->osb_mount_event); 97819ece546SJan Kara mlog_exit(status); 97919ece546SJan Kara return status; 98019ece546SJan Kara } 98119ece546SJan Kara } 98219ece546SJan Kara 98319ece546SJan Kara ocfs2_complete_quota_recovery(osb); 98419ece546SJan Kara 98519ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 98619ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 98719ece546SJan Kara wake_up(&osb->osb_mount_event); 98819ece546SJan Kara 989ccd979bdSMark Fasheh mlog_exit(status); 990ccd979bdSMark Fasheh return status; 991ccd979bdSMark Fasheh 992ccd979bdSMark Fasheh read_super_error: 993ccd979bdSMark Fasheh brelse(bh); 994ccd979bdSMark Fasheh 995ccd979bdSMark Fasheh if (inode) 996ccd979bdSMark Fasheh iput(inode); 997ccd979bdSMark Fasheh 998ccd979bdSMark Fasheh if (osb) { 999ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1000ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1001ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1002ccd979bdSMark Fasheh } 1003ccd979bdSMark Fasheh 1004ccd979bdSMark Fasheh mlog_exit(status); 1005ccd979bdSMark Fasheh return status; 1006ccd979bdSMark Fasheh } 1007ccd979bdSMark Fasheh 1008454e2398SDavid Howells static int ocfs2_get_sb(struct file_system_type *fs_type, 1009ccd979bdSMark Fasheh int flags, 1010ccd979bdSMark Fasheh const char *dev_name, 1011454e2398SDavid Howells void *data, 1012454e2398SDavid Howells struct vfsmount *mnt) 1013ccd979bdSMark Fasheh { 1014454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, 1015454e2398SDavid Howells mnt); 1016ccd979bdSMark Fasheh } 1017ccd979bdSMark Fasheh 1018ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1019ccd979bdSMark Fasheh .owner = THIS_MODULE, 1020ccd979bdSMark Fasheh .name = "ocfs2", 1021ccd979bdSMark Fasheh .get_sb = ocfs2_get_sb, /* is this called when we mount 1022ccd979bdSMark Fasheh * the fs? */ 1023ccd979bdSMark Fasheh .kill_sb = kill_block_super, /* set to the generic one 1024ccd979bdSMark Fasheh * right now, but do we 1025ccd979bdSMark Fasheh * need to change that? */ 10261ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1027ccd979bdSMark Fasheh .next = NULL 1028ccd979bdSMark Fasheh }; 1029ccd979bdSMark Fasheh 1030ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1031ccd979bdSMark Fasheh char *options, 1032c0123adeSTiger Yang struct mount_options *mopt, 1033ccd979bdSMark Fasheh int is_remount) 1034ccd979bdSMark Fasheh { 1035ccd979bdSMark Fasheh int status; 1036ccd979bdSMark Fasheh char *p; 1037ccd979bdSMark Fasheh 1038ccd979bdSMark Fasheh mlog_entry("remount: %d, options: \"%s\"\n", is_remount, 1039ccd979bdSMark Fasheh options ? options : "(none)"); 1040ccd979bdSMark Fasheh 1041d147b3d6SMark Fasheh mopt->commit_interval = 0; 1042c0123adeSTiger Yang mopt->mount_opt = 0; 1043c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1044c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 10452fbe8d1eSSunil Mushran mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; 1046b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1047ccd979bdSMark Fasheh 1048ccd979bdSMark Fasheh if (!options) { 1049ccd979bdSMark Fasheh status = 1; 1050ccd979bdSMark Fasheh goto bail; 1051ccd979bdSMark Fasheh } 1052ccd979bdSMark Fasheh 1053ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1054ccd979bdSMark Fasheh int token, option; 1055ccd979bdSMark Fasheh substring_t args[MAX_OPT_ARGS]; 1056ccd979bdSMark Fasheh 1057ccd979bdSMark Fasheh if (!*p) 1058ccd979bdSMark Fasheh continue; 1059ccd979bdSMark Fasheh 1060ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1061ccd979bdSMark Fasheh switch (token) { 1062ccd979bdSMark Fasheh case Opt_hb_local: 1063c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1064ccd979bdSMark Fasheh break; 1065ccd979bdSMark Fasheh case Opt_hb_none: 1066c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; 1067ccd979bdSMark Fasheh break; 1068ccd979bdSMark Fasheh case Opt_barrier: 1069ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1070ccd979bdSMark Fasheh status = 0; 1071ccd979bdSMark Fasheh goto bail; 1072ccd979bdSMark Fasheh } 1073ccd979bdSMark Fasheh if (option) 1074c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1075ccd979bdSMark Fasheh else 1076c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1077ccd979bdSMark Fasheh break; 1078ccd979bdSMark Fasheh case Opt_intr: 1079c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1080ccd979bdSMark Fasheh break; 1081ccd979bdSMark Fasheh case Opt_nointr: 1082c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1083ccd979bdSMark Fasheh break; 1084ccd979bdSMark Fasheh case Opt_err_panic: 1085c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1086ccd979bdSMark Fasheh break; 1087ccd979bdSMark Fasheh case Opt_err_ro: 1088c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 1089ccd979bdSMark Fasheh break; 1090ccd979bdSMark Fasheh case Opt_data_ordered: 1091c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1092ccd979bdSMark Fasheh break; 1093ccd979bdSMark Fasheh case Opt_data_writeback: 1094c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1095ccd979bdSMark Fasheh break; 1096cf1d6c76STiger Yang case Opt_user_xattr: 1097cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1098cf1d6c76STiger Yang break; 1099cf1d6c76STiger Yang case Opt_nouser_xattr: 1100cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1101cf1d6c76STiger Yang break; 11027f1a37e3STiger Yang case Opt_atime_quantum: 11037f1a37e3STiger Yang if (match_int(&args[0], &option)) { 11047f1a37e3STiger Yang status = 0; 11057f1a37e3STiger Yang goto bail; 11067f1a37e3STiger Yang } 11077f1a37e3STiger Yang if (option >= 0) 1108c0123adeSTiger Yang mopt->atime_quantum = option; 11097f1a37e3STiger Yang break; 1110baf4661aSSunil Mushran case Opt_slot: 1111baf4661aSSunil Mushran option = 0; 1112baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1113baf4661aSSunil Mushran status = 0; 1114baf4661aSSunil Mushran goto bail; 1115baf4661aSSunil Mushran } 1116baf4661aSSunil Mushran if (option) 1117c0123adeSTiger Yang mopt->slot = (s16)option; 1118baf4661aSSunil Mushran break; 1119d147b3d6SMark Fasheh case Opt_commit: 1120d147b3d6SMark Fasheh option = 0; 1121d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1122d147b3d6SMark Fasheh status = 0; 1123d147b3d6SMark Fasheh goto bail; 1124d147b3d6SMark Fasheh } 1125d147b3d6SMark Fasheh if (option < 0) 1126d147b3d6SMark Fasheh return 0; 1127d147b3d6SMark Fasheh if (option == 0) 11282b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1129d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1130d147b3d6SMark Fasheh break; 11312fbe8d1eSSunil Mushran case Opt_localalloc: 11322fbe8d1eSSunil Mushran option = 0; 11332fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 11342fbe8d1eSSunil Mushran status = 0; 11352fbe8d1eSSunil Mushran goto bail; 11362fbe8d1eSSunil Mushran } 11372fbe8d1eSSunil Mushran if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8)) 11382fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 11392fbe8d1eSSunil Mushran break; 114053fc622bSMark Fasheh case Opt_localflocks: 114153fc622bSMark Fasheh /* 114253fc622bSMark Fasheh * Changing this during remount could race 114353fc622bSMark Fasheh * flock() requests, or "unbalance" existing 114453fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 114553fc622bSMark Fasheh * dropped in the other). If users care enough 114653fc622bSMark Fasheh * to flip locking modes during remount, we 114753fc622bSMark Fasheh * could add a "local" flag to individual 114853fc622bSMark Fasheh * flock structures for proper tracking of 114953fc622bSMark Fasheh * state. 115053fc622bSMark Fasheh */ 115153fc622bSMark Fasheh if (!is_remount) 115253fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 115353fc622bSMark Fasheh break; 1154b61817e1SJoel Becker case Opt_stack: 1155b61817e1SJoel Becker /* Check both that the option we were passed 1156b61817e1SJoel Becker * is of the right length and that it is a proper 1157b61817e1SJoel Becker * string of the right length. 1158b61817e1SJoel Becker */ 1159b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1160b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1161b61817e1SJoel Becker (strnlen(args[0].from, 1162b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1163b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1164b61817e1SJoel Becker mlog(ML_ERROR, 1165b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1166b61817e1SJoel Becker status = 0; 1167b61817e1SJoel Becker goto bail; 1168b61817e1SJoel Becker } 1169b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1170b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1171b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 1172b61817e1SJoel Becker break; 117312462f1dSJoel Becker case Opt_inode64: 117412462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 117512462f1dSJoel Becker break; 117619ece546SJan Kara case Opt_usrquota: 117719ece546SJan Kara /* We check only on remount, otherwise features 117819ece546SJan Kara * aren't yet initialized. */ 117919ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 118019ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 118119ece546SJan Kara mlog(ML_ERROR, "User quota requested but " 118219ece546SJan Kara "filesystem feature is not set\n"); 118319ece546SJan Kara status = 0; 118419ece546SJan Kara goto bail; 118519ece546SJan Kara } 118619ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 118719ece546SJan Kara break; 118819ece546SJan Kara case Opt_grpquota: 118919ece546SJan Kara if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 119019ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 119119ece546SJan Kara mlog(ML_ERROR, "Group quota requested but " 119219ece546SJan Kara "filesystem feature is not set\n"); 119319ece546SJan Kara status = 0; 119419ece546SJan Kara goto bail; 119519ece546SJan Kara } 119619ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 119719ece546SJan Kara break; 1198a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1199a68979b8STiger Yang case Opt_acl: 1200a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 1201a68979b8STiger Yang break; 1202a68979b8STiger Yang case Opt_noacl: 1203a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1204a68979b8STiger Yang break; 1205a68979b8STiger Yang #else 1206a68979b8STiger Yang case Opt_acl: 1207a68979b8STiger Yang case Opt_noacl: 1208a68979b8STiger Yang printk(KERN_INFO "ocfs2 (no)acl options not supported\n"); 1209a68979b8STiger Yang break; 1210a68979b8STiger Yang #endif 1211ccd979bdSMark Fasheh default: 1212ccd979bdSMark Fasheh mlog(ML_ERROR, 1213ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1214ccd979bdSMark Fasheh "or missing value\n", p); 1215ccd979bdSMark Fasheh status = 0; 1216ccd979bdSMark Fasheh goto bail; 1217ccd979bdSMark Fasheh } 1218ccd979bdSMark Fasheh } 1219ccd979bdSMark Fasheh 1220ccd979bdSMark Fasheh status = 1; 1221ccd979bdSMark Fasheh 1222ccd979bdSMark Fasheh bail: 1223ccd979bdSMark Fasheh mlog_exit(status); 1224ccd979bdSMark Fasheh return status; 1225ccd979bdSMark Fasheh } 1226ccd979bdSMark Fasheh 1227d550071cSSunil Mushran static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 1228d550071cSSunil Mushran { 1229d550071cSSunil Mushran struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); 1230d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1231ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1232d550071cSSunil Mushran 1233d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 1234d550071cSSunil Mushran seq_printf(s, ",_netdev,heartbeat=local"); 1235d550071cSSunil Mushran else 1236d550071cSSunil Mushran seq_printf(s, ",heartbeat=none"); 1237d550071cSSunil Mushran 1238d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1239d550071cSSunil Mushran seq_printf(s, ",nointr"); 1240d550071cSSunil Mushran 1241d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1242d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1243d550071cSSunil Mushran else 1244d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1245d550071cSSunil Mushran 1246d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1247d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1248d550071cSSunil Mushran 1249d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1250d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 1251d550071cSSunil Mushran else 1252d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1253d550071cSSunil Mushran 1254d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1255d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1256d550071cSSunil Mushran 1257d550071cSSunil Mushran if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) 1258d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1259d550071cSSunil Mushran 1260d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1261d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1262d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1263d147b3d6SMark Fasheh 1264ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 1265ebcee4b5SMark Fasheh if (local_alloc_megs != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE) 1266ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 12672fbe8d1eSSunil Mushran 126853fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 126953fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 127053fc622bSMark Fasheh 1271b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1272b61817e1SJoel Becker seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, 1273b61817e1SJoel Becker osb->osb_cluster_stack); 127419ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 127519ece546SJan Kara seq_printf(s, ",usrquota"); 127619ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 127719ece546SJan Kara seq_printf(s, ",grpquota"); 1278b61817e1SJoel Becker 1279b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1280b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1281b0f73cfcSSunil Mushran else 1282b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1283b0f73cfcSSunil Mushran 128412462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 128512462f1dSJoel Becker seq_printf(s, ",inode64"); 128612462f1dSJoel Becker 1287a68979b8STiger Yang #ifdef CONFIG_OCFS2_FS_POSIX_ACL 1288a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1289a68979b8STiger Yang seq_printf(s, ",acl"); 1290a68979b8STiger Yang else 1291a68979b8STiger Yang seq_printf(s, ",noacl"); 1292a68979b8STiger Yang #endif 1293a68979b8STiger Yang 1294d550071cSSunil Mushran return 0; 1295d550071cSSunil Mushran } 1296d550071cSSunil Mushran 1297ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1298ccd979bdSMark Fasheh { 1299ccd979bdSMark Fasheh int status; 1300ccd979bdSMark Fasheh 1301ccd979bdSMark Fasheh mlog_entry_void(); 1302ccd979bdSMark Fasheh 1303ccd979bdSMark Fasheh ocfs2_print_version(); 1304ccd979bdSMark Fasheh 1305ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1306ccd979bdSMark Fasheh if (status < 0) { 1307ccd979bdSMark Fasheh mlog_errno(status); 1308ccd979bdSMark Fasheh goto leave; 1309ccd979bdSMark Fasheh } 1310ccd979bdSMark Fasheh 1311ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1312ccd979bdSMark Fasheh if (status < 0) { 1313ccd979bdSMark Fasheh mlog_errno(status); 1314ccd979bdSMark Fasheh goto leave; 1315ccd979bdSMark Fasheh } 1316ccd979bdSMark Fasheh 1317ccd979bdSMark Fasheh ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); 1318ccd979bdSMark Fasheh if (!ocfs2_wq) { 1319ccd979bdSMark Fasheh status = -ENOMEM; 1320ccd979bdSMark Fasheh goto leave; 1321ccd979bdSMark Fasheh } 1322ccd979bdSMark Fasheh 1323ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1324ccd979bdSMark Fasheh if (!ocfs2_debugfs_root) { 1325ccd979bdSMark Fasheh status = -EFAULT; 1326ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); 1327ccd979bdSMark Fasheh } 1328ccd979bdSMark Fasheh 1329171bf93cSMark Fasheh status = ocfs2_quota_setup(); 1330171bf93cSMark Fasheh if (status) 1331171bf93cSMark Fasheh goto leave; 1332171bf93cSMark Fasheh 133363e0c48aSJoel Becker ocfs2_set_locking_protocol(); 133463e0c48aSJoel Becker 13359e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1336ccd979bdSMark Fasheh leave: 1337ccd979bdSMark Fasheh if (status < 0) { 1338171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1339ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1340ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1341ccd979bdSMark Fasheh } 1342ccd979bdSMark Fasheh 1343ccd979bdSMark Fasheh mlog_exit(status); 1344ccd979bdSMark Fasheh 1345ccd979bdSMark Fasheh if (status >= 0) { 1346ccd979bdSMark Fasheh return register_filesystem(&ocfs2_fs_type); 1347ccd979bdSMark Fasheh } else 1348ccd979bdSMark Fasheh return -1; 1349ccd979bdSMark Fasheh } 1350ccd979bdSMark Fasheh 1351ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1352ccd979bdSMark Fasheh { 1353ccd979bdSMark Fasheh mlog_entry_void(); 1354ccd979bdSMark Fasheh 1355171bf93cSMark Fasheh ocfs2_quota_shutdown(); 1356171bf93cSMark Fasheh 1357ccd979bdSMark Fasheh if (ocfs2_wq) { 1358ccd979bdSMark Fasheh flush_workqueue(ocfs2_wq); 1359ccd979bdSMark Fasheh destroy_workqueue(ocfs2_wq); 1360ccd979bdSMark Fasheh } 1361ccd979bdSMark Fasheh 13629e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 13639e33d69fSJan Kara 1364ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1365ccd979bdSMark Fasheh 1366ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1367ccd979bdSMark Fasheh 1368ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1369ccd979bdSMark Fasheh 1370ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1371ccd979bdSMark Fasheh 1372ccd979bdSMark Fasheh mlog_exit_void(); 1373ccd979bdSMark Fasheh } 1374ccd979bdSMark Fasheh 1375ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1376ccd979bdSMark Fasheh { 1377ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1378ccd979bdSMark Fasheh 1379ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1380ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1381ccd979bdSMark Fasheh 1382ccd979bdSMark Fasheh mlog_exit_void(); 1383ccd979bdSMark Fasheh } 1384ccd979bdSMark Fasheh 1385726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1386ccd979bdSMark Fasheh { 1387ccd979bdSMark Fasheh struct ocfs2_super *osb; 1388ccd979bdSMark Fasheh u32 numbits, freebits; 1389ccd979bdSMark Fasheh int status; 1390ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1391ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1392ccd979bdSMark Fasheh struct inode *inode = NULL; 1393ccd979bdSMark Fasheh 1394726c3342SDavid Howells mlog_entry("(%p, %p)\n", dentry->d_sb, buf); 1395ccd979bdSMark Fasheh 1396726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1397ccd979bdSMark Fasheh 1398ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1399ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1400ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1401ccd979bdSMark Fasheh if (!inode) { 1402ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1403ccd979bdSMark Fasheh status = -EIO; 1404ccd979bdSMark Fasheh goto bail; 1405ccd979bdSMark Fasheh } 1406ccd979bdSMark Fasheh 1407e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1408ccd979bdSMark Fasheh if (status < 0) { 1409ccd979bdSMark Fasheh mlog_errno(status); 1410ccd979bdSMark Fasheh goto bail; 1411ccd979bdSMark Fasheh } 1412ccd979bdSMark Fasheh 1413ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1414ccd979bdSMark Fasheh 1415ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1416ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1417ccd979bdSMark Fasheh 1418ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1419726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1420ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1421ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1422ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1423ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1424ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1425ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1426ccd979bdSMark Fasheh buf->f_files = numbits; 1427ccd979bdSMark Fasheh buf->f_ffree = freebits; 1428ccd979bdSMark Fasheh 1429ccd979bdSMark Fasheh brelse(bh); 1430ccd979bdSMark Fasheh 1431e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1432ccd979bdSMark Fasheh status = 0; 1433ccd979bdSMark Fasheh bail: 1434ccd979bdSMark Fasheh if (inode) 1435ccd979bdSMark Fasheh iput(inode); 1436ccd979bdSMark Fasheh 1437ccd979bdSMark Fasheh mlog_exit(status); 1438ccd979bdSMark Fasheh 1439ccd979bdSMark Fasheh return status; 1440ccd979bdSMark Fasheh } 1441ccd979bdSMark Fasheh 144251cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1443ccd979bdSMark Fasheh { 1444ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1445ccd979bdSMark Fasheh 1446ccd979bdSMark Fasheh oi->ip_flags = 0; 1447ccd979bdSMark Fasheh oi->ip_open_count = 0; 1448ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 144983418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1450ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 1451ccd979bdSMark Fasheh oi->ip_created_trans = 0; 1452ccd979bdSMark Fasheh oi->ip_last_trans = 0; 1453ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1454ccd979bdSMark Fasheh 1455ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1456cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1457251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1458ccd979bdSMark Fasheh 1459ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1460ccd979bdSMark Fasheh oi->ip_clusters = 0; 1461ccd979bdSMark Fasheh 1462ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1463e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 146450008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1465ccd979bdSMark Fasheh 1466ccd979bdSMark Fasheh ocfs2_metadata_cache_init(&oi->vfs_inode); 1467ccd979bdSMark Fasheh 1468ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1469ccd979bdSMark Fasheh } 1470ccd979bdSMark Fasheh 1471ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1472ccd979bdSMark Fasheh { 1473ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1474ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1475fffb60f9SPaul Jackson 0, 1476fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 1477fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 147820c2df83SPaul Mundt ocfs2_inode_init_once); 14799e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 14809e33d69fSJan Kara sizeof(struct ocfs2_dquot), 14819e33d69fSJan Kara 0, 14829e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 14839e33d69fSJan Kara SLAB_MEM_SPREAD), 14849e33d69fSJan Kara NULL); 14859e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 14869e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 14879e33d69fSJan Kara 0, 14889e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 14899e33d69fSJan Kara NULL); 14909e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 14919e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 14929e33d69fSJan Kara if (ocfs2_inode_cachep) 14939e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 14949e33d69fSJan Kara if (ocfs2_dquot_cachep) 14959e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 14969e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 14979e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1498ccd979bdSMark Fasheh return -ENOMEM; 14999e33d69fSJan Kara } 1500ccd979bdSMark Fasheh 1501ccd979bdSMark Fasheh return 0; 1502ccd979bdSMark Fasheh } 1503ccd979bdSMark Fasheh 1504ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1505ccd979bdSMark Fasheh { 1506ccd979bdSMark Fasheh if (ocfs2_inode_cachep) 1507ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1508ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 15099e33d69fSJan Kara 15109e33d69fSJan Kara if (ocfs2_dquot_cachep) 15119e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 15129e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 15139e33d69fSJan Kara 15149e33d69fSJan Kara if (ocfs2_qf_chunk_cachep) 15159e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 15169e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1517ccd979bdSMark Fasheh } 1518ccd979bdSMark Fasheh 1519ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1520ccd979bdSMark Fasheh struct buffer_head **bh, 1521ccd979bdSMark Fasheh int block, 1522ccd979bdSMark Fasheh int sect_size) 1523ccd979bdSMark Fasheh { 1524ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1525ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1526ccd979bdSMark Fasheh return -EIO; 1527ccd979bdSMark Fasheh } 1528ccd979bdSMark Fasheh 1529ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1530ccd979bdSMark Fasheh if (!*bh) { 1531ccd979bdSMark Fasheh mlog_errno(-EIO); 1532ccd979bdSMark Fasheh return -EIO; 1533ccd979bdSMark Fasheh } 1534ccd979bdSMark Fasheh lock_buffer(*bh); 1535ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1536ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1537ccd979bdSMark Fasheh unlock_buffer(*bh); 1538ccd979bdSMark Fasheh ll_rw_block(READ, 1, bh); 1539ccd979bdSMark Fasheh wait_on_buffer(*bh); 1540ccd979bdSMark Fasheh return 0; 1541ccd979bdSMark Fasheh } 1542ccd979bdSMark Fasheh 1543ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1544ccd979bdSMark Fasheh { 1545ccd979bdSMark Fasheh int status = 0; 1546ccd979bdSMark Fasheh int unlock_super = 0; 1547ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1548ccd979bdSMark Fasheh 1549ccd979bdSMark Fasheh mlog_entry_void(); 1550ccd979bdSMark Fasheh 1551ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 1552ccd979bdSMark Fasheh goto leave; 1553ccd979bdSMark Fasheh 1554ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1555ccd979bdSMark Fasheh if (status < 0) { 1556ccd979bdSMark Fasheh mlog_errno(status); 1557ccd979bdSMark Fasheh goto leave; 1558ccd979bdSMark Fasheh } 1559ccd979bdSMark Fasheh 1560ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1561ccd979bdSMark Fasheh if (status < 0) { 1562ccd979bdSMark Fasheh mlog_errno(status); 1563ccd979bdSMark Fasheh goto leave; 1564ccd979bdSMark Fasheh } 1565ccd979bdSMark Fasheh unlock_super = 1; 1566ccd979bdSMark Fasheh 1567ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1568ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1569ccd979bdSMark Fasheh if (status < 0) { 1570ccd979bdSMark Fasheh mlog_errno(status); 1571ccd979bdSMark Fasheh goto leave; 1572ccd979bdSMark Fasheh } 1573ccd979bdSMark Fasheh 1574ccd979bdSMark Fasheh /* load all node-local system inodes */ 1575ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1576ccd979bdSMark Fasheh if (status < 0) { 1577ccd979bdSMark Fasheh mlog_errno(status); 1578ccd979bdSMark Fasheh goto leave; 1579ccd979bdSMark Fasheh } 1580ccd979bdSMark Fasheh 1581ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1582ccd979bdSMark Fasheh if (status < 0) { 1583ccd979bdSMark Fasheh mlog_errno(status); 1584ccd979bdSMark Fasheh goto leave; 1585ccd979bdSMark Fasheh } 1586ccd979bdSMark Fasheh 1587ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 1588ccd979bdSMark Fasheh if (status < 0) { 1589ccd979bdSMark Fasheh mlog_errno(status); 1590ccd979bdSMark Fasheh goto leave; 1591ccd979bdSMark Fasheh } 1592ccd979bdSMark Fasheh 1593c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1594c271c5c2SSunil Mushran goto leave; 1595c271c5c2SSunil Mushran 1596ccd979bdSMark Fasheh leave: 1597ccd979bdSMark Fasheh if (unlock_super) 1598ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1599ccd979bdSMark Fasheh 1600ccd979bdSMark Fasheh mlog_exit(status); 1601ccd979bdSMark Fasheh return status; 1602ccd979bdSMark Fasheh } 1603ccd979bdSMark Fasheh 1604ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1605ccd979bdSMark Fasheh { 1606286eaa95SJoel Becker int tmp, hangup_needed = 0; 1607ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 1608c271c5c2SSunil Mushran char nodestr[8]; 1609ccd979bdSMark Fasheh 1610ccd979bdSMark Fasheh mlog_entry("(0x%p)\n", sb); 1611ccd979bdSMark Fasheh 1612ccd979bdSMark Fasheh BUG_ON(!sb); 1613ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1614ccd979bdSMark Fasheh BUG_ON(!osb); 1615ccd979bdSMark Fasheh 161619ece546SJan Kara ocfs2_disable_quotas(osb); 161719ece546SJan Kara 1618ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1619ccd979bdSMark Fasheh 1620ccd979bdSMark Fasheh ocfs2_truncate_log_shutdown(osb); 1621ccd979bdSMark Fasheh 1622553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1623553abd04SJoel Becker ocfs2_recovery_exit(osb); 1624ccd979bdSMark Fasheh 1625ccd979bdSMark Fasheh ocfs2_journal_shutdown(osb); 1626ccd979bdSMark Fasheh 1627ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1628ccd979bdSMark Fasheh 16294670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 16304670c46dSJoel Becker * all the steps which depended on that to complete. */ 16314670c46dSJoel Becker if (osb->cconn) { 1632ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1633ccd979bdSMark Fasheh if (tmp < 0) { 1634ccd979bdSMark Fasheh mlog_errno(tmp); 1635ccd979bdSMark Fasheh return; 1636ccd979bdSMark Fasheh } 163719b613d4SMark Fasheh } 1638ccd979bdSMark Fasheh 1639ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1640ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1641ccd979bdSMark Fasheh 16424670c46dSJoel Becker if (osb->cconn) 1643ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1644ccd979bdSMark Fasheh 1645ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1646ccd979bdSMark Fasheh 16476953b4c0SJoel Becker /* 16486953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 16496953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 16506953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 16516953b4c0SJoel Becker * heartbeat. Otherwise, do it. 16526953b4c0SJoel Becker */ 16536953b4c0SJoel Becker if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) 1654286eaa95SJoel Becker hangup_needed = 1; 1655286eaa95SJoel Becker 1656286eaa95SJoel Becker if (osb->cconn) 1657286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1658286eaa95SJoel Becker 1659286eaa95SJoel Becker debugfs_remove(osb->osb_debug_root); 1660286eaa95SJoel Becker 1661286eaa95SJoel Becker if (hangup_needed) 16626953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1663ccd979bdSMark Fasheh 1664ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1665ccd979bdSMark Fasheh 1666c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1667c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1668c271c5c2SSunil Mushran else 166919fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1670c271c5c2SSunil Mushran 1671c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1672c271c5c2SSunil Mushran osb->dev_str, nodestr); 1673ccd979bdSMark Fasheh 1674ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1675ccd979bdSMark Fasheh kfree(osb); 1676ccd979bdSMark Fasheh sb->s_dev = 0; 1677ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1678ccd979bdSMark Fasheh } 1679ccd979bdSMark Fasheh 1680ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1681ccd979bdSMark Fasheh unsigned uuid_bytes) 1682ccd979bdSMark Fasheh { 1683ccd979bdSMark Fasheh int i, ret; 1684ccd979bdSMark Fasheh char *ptr; 1685ccd979bdSMark Fasheh 1686ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1687ccd979bdSMark Fasheh 1688cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1689ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1690ccd979bdSMark Fasheh return -ENOMEM; 1691ccd979bdSMark Fasheh 1692ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1693ccd979bdSMark Fasheh /* print with null */ 1694ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1695ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1696ccd979bdSMark Fasheh return -EINVAL; 1697ccd979bdSMark Fasheh /* then only advance past the last char */ 1698ccd979bdSMark Fasheh ptr += 2; 1699ccd979bdSMark Fasheh } 1700ccd979bdSMark Fasheh 1701ccd979bdSMark Fasheh return 0; 1702ccd979bdSMark Fasheh } 1703ccd979bdSMark Fasheh 1704ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1705ccd979bdSMark Fasheh struct buffer_head *bh, 1706ccd979bdSMark Fasheh int sector_size) 1707ccd979bdSMark Fasheh { 1708bddb8eb3SDenis Cheng int status; 17095a254031SMark Fasheh int i, cbits, bbits; 17105a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 1711ccd979bdSMark Fasheh struct inode *inode = NULL; 1712ccd979bdSMark Fasheh struct ocfs2_journal *journal; 1713ccd979bdSMark Fasheh __le32 uuid_net_key; 1714ccd979bdSMark Fasheh struct ocfs2_super *osb; 1715ccd979bdSMark Fasheh 1716ccd979bdSMark Fasheh mlog_entry_void(); 1717ccd979bdSMark Fasheh 1718cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 1719ccd979bdSMark Fasheh if (!osb) { 1720ccd979bdSMark Fasheh status = -ENOMEM; 1721ccd979bdSMark Fasheh mlog_errno(status); 1722ccd979bdSMark Fasheh goto bail; 1723ccd979bdSMark Fasheh } 1724ccd979bdSMark Fasheh 1725ccd979bdSMark Fasheh sb->s_fs_info = osb; 1726ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 1727ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 172819ece546SJan Kara sb->s_qcop = &ocfs2_quotactl_ops; 172919ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 1730cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 1731e0dceaf0SMark Fasheh sb->s_time_gran = 1; 1732ccd979bdSMark Fasheh sb->s_flags |= MS_NOATIME; 1733ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 17345a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 17355a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 17365a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 1737ccd979bdSMark Fasheh 1738ccd979bdSMark Fasheh osb->sb = sb; 1739ccd979bdSMark Fasheh /* Save off for ocfs2_rw_direct */ 1740ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 1741ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 1742ccd979bdSMark Fasheh 174334d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 174434d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 174534d024f8SMark Fasheh osb->dc_work_sequence = 0; 174634d024f8SMark Fasheh osb->dc_wake_sequence = 0; 1747ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 1748ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 1749ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 1750c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 17514d0ddb2cSTao Ma ocfs2_init_inode_steal_slot(osb); 1752ccd979bdSMark Fasheh 1753ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 1754ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 1755ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 1756ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 1757ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 1758ccd979bdSMark Fasheh 1759ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 1760ccd979bdSMark Fasheh 1761ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 1762ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1763ccd979bdSMark Fasheh 1764553abd04SJoel Becker status = ocfs2_recovery_init(osb); 1765553abd04SJoel Becker if (status) { 1766553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 1767553abd04SJoel Becker mlog_errno(status); 1768553abd04SJoel Becker goto bail; 1769553abd04SJoel Becker } 1770ccd979bdSMark Fasheh 1771ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 1772ccd979bdSMark Fasheh atomic_set(&osb->needs_checkpoint, 0); 1773ccd979bdSMark Fasheh 17747f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 17757f1a37e3STiger Yang 1776ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 1777ccd979bdSMark Fasheh 17788154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 17798154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 1780fdd77704STiger Yang 1781ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 1782ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 17839c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 1784ccd979bdSMark Fasheh 1785ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 1786ccd979bdSMark Fasheh 1787ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 1788ccd979bdSMark Fasheh if (!osb->vol_label) { 1789ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 1790ccd979bdSMark Fasheh status = -ENOMEM; 1791ccd979bdSMark Fasheh goto bail; 1792ccd979bdSMark Fasheh } 1793ccd979bdSMark Fasheh 1794ccd979bdSMark Fasheh osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 1795ccd979bdSMark Fasheh if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 1796ccd979bdSMark Fasheh mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 1797ccd979bdSMark Fasheh osb->max_slots); 1798ccd979bdSMark Fasheh status = -EINVAL; 1799ccd979bdSMark Fasheh goto bail; 1800ccd979bdSMark Fasheh } 1801781ee3e2SSunil Mushran mlog(0, "max_slots for this device: %u\n", osb->max_slots); 1802ccd979bdSMark Fasheh 1803539d8264SSunil Mushran osb->slot_recovery_generations = 1804539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 1805539d8264SSunil Mushran GFP_KERNEL); 1806539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 1807539d8264SSunil Mushran status = -ENOMEM; 1808539d8264SSunil Mushran mlog_errno(status); 1809539d8264SSunil Mushran goto bail; 1810539d8264SSunil Mushran } 1811539d8264SSunil Mushran 1812b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 1813b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 1814b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 1815b4df6ed8SMark Fasheh GFP_KERNEL); 1816b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 1817b4df6ed8SMark Fasheh status = -ENOMEM; 1818b4df6ed8SMark Fasheh mlog_errno(status); 1819b4df6ed8SMark Fasheh goto bail; 1820b4df6ed8SMark Fasheh } 1821b4df6ed8SMark Fasheh 1822ccd979bdSMark Fasheh osb->s_feature_compat = 1823ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 1824ccd979bdSMark Fasheh osb->s_feature_ro_compat = 1825ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 1826ccd979bdSMark Fasheh osb->s_feature_incompat = 1827ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 1828ccd979bdSMark Fasheh 1829ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 1830ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 1831ccd979bdSMark Fasheh "optional features (%x).\n", i); 1832ccd979bdSMark Fasheh status = -EINVAL; 1833ccd979bdSMark Fasheh goto bail; 1834ccd979bdSMark Fasheh } 1835ccd979bdSMark Fasheh if (!(osb->sb->s_flags & MS_RDONLY) && 1836ccd979bdSMark Fasheh (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 1837ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 1838ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 1839ccd979bdSMark Fasheh status = -EINVAL; 1840ccd979bdSMark Fasheh goto bail; 1841ccd979bdSMark Fasheh } 1842ccd979bdSMark Fasheh 1843b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 1844b61817e1SJoel Becker memcpy(osb->osb_cluster_stack, 1845b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 1846b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1847b61817e1SJoel Becker osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 1848b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 1849b61817e1SJoel Becker mlog(ML_ERROR, 1850b61817e1SJoel Becker "couldn't mount because of an invalid " 1851b61817e1SJoel Becker "cluster stack label (%s) \n", 1852b61817e1SJoel Becker osb->osb_cluster_stack); 1853b61817e1SJoel Becker status = -EINVAL; 1854b61817e1SJoel Becker goto bail; 1855b61817e1SJoel Becker } 1856b61817e1SJoel Becker } else { 1857b61817e1SJoel Becker /* The empty string is identical with classic tools that 1858b61817e1SJoel Becker * don't know about s_cluster_info. */ 1859b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 1860b61817e1SJoel Becker } 1861b61817e1SJoel Becker 1862ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 1863ccd979bdSMark Fasheh 1864ccd979bdSMark Fasheh /* FIXME 1865ccd979bdSMark Fasheh * This should be done in ocfs2_journal_init(), but unknown 1866ccd979bdSMark Fasheh * ordering issues will cause the filesystem to crash. 1867ccd979bdSMark Fasheh * If anyone wants to figure out what part of the code 1868ccd979bdSMark Fasheh * refers to osb->journal before ocfs2_journal_init() is run, 1869ccd979bdSMark Fasheh * be my guest. 1870ccd979bdSMark Fasheh */ 1871ccd979bdSMark Fasheh /* initialize our journal structure */ 1872ccd979bdSMark Fasheh 1873cd861280SRobert P. J. Day journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); 1874ccd979bdSMark Fasheh if (!journal) { 1875ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc journal\n"); 1876ccd979bdSMark Fasheh status = -ENOMEM; 1877ccd979bdSMark Fasheh goto bail; 1878ccd979bdSMark Fasheh } 1879ccd979bdSMark Fasheh osb->journal = journal; 1880ccd979bdSMark Fasheh journal->j_osb = osb; 1881ccd979bdSMark Fasheh 1882ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 1883ccd979bdSMark Fasheh init_rwsem(&journal->j_trans_barrier); 1884ccd979bdSMark Fasheh init_waitqueue_head(&journal->j_checkpointed); 1885ccd979bdSMark Fasheh spin_lock_init(&journal->j_lock); 1886ccd979bdSMark Fasheh journal->j_trans_id = (unsigned long) 1; 1887ccd979bdSMark Fasheh INIT_LIST_HEAD(&journal->j_la_cleanups); 1888c4028958SDavid Howells INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); 1889ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 1890ccd979bdSMark Fasheh 1891ea455f8aSJan Kara INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); 1892ea455f8aSJan Kara osb->dentry_lock_list = NULL; 1893ea455f8aSJan Kara 1894ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 1895ccd979bdSMark Fasheh osb->s_clustersize_bits = 1896ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 1897ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 1898ccd979bdSMark Fasheh mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); 1899ccd979bdSMark Fasheh 1900ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 1901ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 1902ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 1903ccd979bdSMark Fasheh osb->s_clustersize); 1904ccd979bdSMark Fasheh status = -EINVAL; 1905ccd979bdSMark Fasheh goto bail; 1906ccd979bdSMark Fasheh } 1907ccd979bdSMark Fasheh 1908ccd979bdSMark Fasheh if (ocfs2_clusters_to_blocks(osb->sb, le32_to_cpu(di->i_clusters) - 1) 1909ccd979bdSMark Fasheh > (u32)~0UL) { 1910ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume might try to write to blocks beyond " 1911ccd979bdSMark Fasheh "what jbd can address in 32 bits.\n"); 1912ccd979bdSMark Fasheh status = -EINVAL; 1913ccd979bdSMark Fasheh goto bail; 1914ccd979bdSMark Fasheh } 1915ccd979bdSMark Fasheh 1916ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 1917ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 1918ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 1919ccd979bdSMark Fasheh status = -ENOMEM; 1920ccd979bdSMark Fasheh goto bail; 1921ccd979bdSMark Fasheh } 1922ccd979bdSMark Fasheh 192378427043SMark Fasheh memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); 1924ccd979bdSMark Fasheh 1925ccd979bdSMark Fasheh strncpy(osb->vol_label, di->id2.i_super.s_label, 63); 1926ccd979bdSMark Fasheh osb->vol_label[63] = '\0'; 1927ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 1928ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 1929ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 1930ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 1931ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 1932cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 1933ccd979bdSMark Fasheh mlog(0, "vol_label: %s\n", osb->vol_label); 1934ccd979bdSMark Fasheh mlog(0, "uuid: %s\n", osb->uuid_str); 1935b0697053SMark Fasheh mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", 1936b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 1937b0697053SMark Fasheh (unsigned long long)osb->system_dir_blkno); 1938ccd979bdSMark Fasheh 1939ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 1940ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 1941ccd979bdSMark Fasheh status = -ENOMEM; 1942ccd979bdSMark Fasheh mlog_errno(status); 1943ccd979bdSMark Fasheh goto bail; 1944ccd979bdSMark Fasheh } 1945ccd979bdSMark Fasheh 1946ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 1947ccd979bdSMark Fasheh 1948ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 1949ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 1950ccd979bdSMark Fasheh if (status < 0) { 1951ccd979bdSMark Fasheh mlog_errno(status); 1952ccd979bdSMark Fasheh goto bail; 1953ccd979bdSMark Fasheh } 1954ccd979bdSMark Fasheh 1955ccd979bdSMark Fasheh /* 1956ccd979bdSMark Fasheh * global bitmap 1957ccd979bdSMark Fasheh */ 1958ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 1959ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1960ccd979bdSMark Fasheh if (!inode) { 1961ccd979bdSMark Fasheh status = -EINVAL; 1962ccd979bdSMark Fasheh mlog_errno(status); 1963ccd979bdSMark Fasheh goto bail; 1964ccd979bdSMark Fasheh } 1965ccd979bdSMark Fasheh 1966ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 1967ccd979bdSMark Fasheh iput(inode); 1968ccd979bdSMark Fasheh 1969e9d578a8STao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb) * 8; 1970ccd979bdSMark Fasheh 1971ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 1972ccd979bdSMark Fasheh if (status < 0) { 1973ccd979bdSMark Fasheh mlog_errno(status); 1974ccd979bdSMark Fasheh goto bail; 1975ccd979bdSMark Fasheh } 1976ccd979bdSMark Fasheh 1977ccd979bdSMark Fasheh bail: 1978ccd979bdSMark Fasheh mlog_exit(status); 1979ccd979bdSMark Fasheh return status; 1980ccd979bdSMark Fasheh } 1981ccd979bdSMark Fasheh 1982ccd979bdSMark Fasheh /* 1983ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 1984ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 1985ccd979bdSMark Fasheh * 0 on success 1986ccd979bdSMark Fasheh */ 1987ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 1988ccd979bdSMark Fasheh struct buffer_head *bh, 1989ccd979bdSMark Fasheh u32 blksz) 1990ccd979bdSMark Fasheh { 1991ccd979bdSMark Fasheh int status = -EAGAIN; 1992ccd979bdSMark Fasheh 1993ccd979bdSMark Fasheh mlog_entry_void(); 1994ccd979bdSMark Fasheh 1995ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 1996ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 1997d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 1998d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 1999d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2000d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2001d030cc97SJoel Becker bh->b_size, 2002d030cc97SJoel Becker &di->i_check); 2003d030cc97SJoel Becker if (status) 2004d030cc97SJoel Becker goto out; 2005d030cc97SJoel Becker } 2006ccd979bdSMark Fasheh status = -EINVAL; 2007ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2008ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2009ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2010ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2011ccd979bdSMark Fasheh blksz); 2012ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2013ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2014ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2015ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2016ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2017ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2018ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2019ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2020ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2021ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2022ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2023ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2024b0697053SMark Fasheh "found %llu, should be %llu\n", 20251ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2026b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2027ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2028ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2029ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2030ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2031ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2032ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2033ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2034ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2035ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2036ccd979bdSMark Fasheh mlog(ML_ERROR, 2037ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2038ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2039ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2040ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2041ccd979bdSMark Fasheh } else { 2042ccd979bdSMark Fasheh /* found it! */ 2043ccd979bdSMark Fasheh status = 0; 2044ccd979bdSMark Fasheh } 2045ccd979bdSMark Fasheh } 2046ccd979bdSMark Fasheh 2047d030cc97SJoel Becker out: 2048ccd979bdSMark Fasheh mlog_exit(status); 2049ccd979bdSMark Fasheh return status; 2050ccd979bdSMark Fasheh } 2051ccd979bdSMark Fasheh 2052ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2053ccd979bdSMark Fasheh { 2054bddb8eb3SDenis Cheng int status; 2055ccd979bdSMark Fasheh int dirty; 2056c271c5c2SSunil Mushran int local; 2057ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2058ccd979bdSMark Fasheh * recover 2059ccd979bdSMark Fasheh * ourselves. */ 2060ccd979bdSMark Fasheh 2061ccd979bdSMark Fasheh mlog_entry_void(); 2062ccd979bdSMark Fasheh 2063ccd979bdSMark Fasheh /* Init our journal object. */ 2064ccd979bdSMark Fasheh status = ocfs2_journal_init(osb->journal, &dirty); 2065ccd979bdSMark Fasheh if (status < 0) { 2066ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2067ccd979bdSMark Fasheh goto finally; 2068ccd979bdSMark Fasheh } 2069ccd979bdSMark Fasheh 2070ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2071ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2072ccd979bdSMark Fasheh * dirty work for us :) */ 2073ccd979bdSMark Fasheh if (!dirty) { 2074ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2075ccd979bdSMark Fasheh if (status < 0) { 2076ccd979bdSMark Fasheh mlog_errno(status); 2077ccd979bdSMark Fasheh goto finally; 2078ccd979bdSMark Fasheh } 2079ccd979bdSMark Fasheh } else { 2080ccd979bdSMark Fasheh mlog(ML_NOTICE, "File system was not unmounted cleanly, " 2081ccd979bdSMark Fasheh "recovering volume.\n"); 2082ccd979bdSMark Fasheh } 2083ccd979bdSMark Fasheh 2084c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2085c271c5c2SSunil Mushran 2086ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2087539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 208801af4820SWengang Wang if (status < 0) { 208901af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 209001af4820SWengang Wang goto finally; 209101af4820SWengang Wang } 2092ccd979bdSMark Fasheh 2093ccd979bdSMark Fasheh if (dirty) { 2094ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2095ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2096ccd979bdSMark Fasheh osb->slot_num, 2097ccd979bdSMark Fasheh &local_alloc); 2098ccd979bdSMark Fasheh if (status < 0) { 2099ccd979bdSMark Fasheh mlog_errno(status); 2100ccd979bdSMark Fasheh goto finally; 2101ccd979bdSMark Fasheh } 2102ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2103ccd979bdSMark Fasheh * ourselves as mounted. */ 2104ccd979bdSMark Fasheh } 2105ccd979bdSMark Fasheh 2106ccd979bdSMark Fasheh mlog(0, "Journal loaded.\n"); 2107ccd979bdSMark Fasheh 2108ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2109ccd979bdSMark Fasheh if (status < 0) { 2110ccd979bdSMark Fasheh mlog_errno(status); 2111ccd979bdSMark Fasheh goto finally; 2112ccd979bdSMark Fasheh } 2113ccd979bdSMark Fasheh 2114ccd979bdSMark Fasheh if (dirty) { 2115ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2116ccd979bdSMark Fasheh * rest of the volume. */ 2117ccd979bdSMark Fasheh osb->dirty = 1; 2118ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2119ccd979bdSMark Fasheh local_alloc = NULL; 2120ccd979bdSMark Fasheh } 2121ccd979bdSMark Fasheh 2122ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2123ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2124ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2125ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 2126ccd979bdSMark Fasheh if (status < 0) 2127ccd979bdSMark Fasheh mlog_errno(status); 2128ccd979bdSMark Fasheh 2129ccd979bdSMark Fasheh finally: 2130ccd979bdSMark Fasheh if (local_alloc) 2131ccd979bdSMark Fasheh kfree(local_alloc); 2132ccd979bdSMark Fasheh 2133ccd979bdSMark Fasheh mlog_exit(status); 2134ccd979bdSMark Fasheh return status; 2135ccd979bdSMark Fasheh } 2136ccd979bdSMark Fasheh 2137ccd979bdSMark Fasheh /* 2138ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2139ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2140ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2141ccd979bdSMark Fasheh * initialized resources and fileobject. 2142ccd979bdSMark Fasheh */ 2143ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2144ccd979bdSMark Fasheh { 2145ccd979bdSMark Fasheh mlog_entry_void(); 2146ccd979bdSMark Fasheh 2147ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2148ccd979bdSMark Fasheh 21498e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2150ccd979bdSMark Fasheh 2151b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2152539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2153ccd979bdSMark Fasheh /* FIXME 2154ccd979bdSMark Fasheh * This belongs in journal shutdown, but because we have to 2155ccd979bdSMark Fasheh * allocate osb->journal at the start of ocfs2_initalize_osb(), 2156ccd979bdSMark Fasheh * we free it here. 2157ccd979bdSMark Fasheh */ 2158ccd979bdSMark Fasheh kfree(osb->journal); 2159ccd979bdSMark Fasheh if (osb->local_alloc_copy) 2160ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2161ccd979bdSMark Fasheh kfree(osb->uuid_str); 2162ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2163ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2164ccd979bdSMark Fasheh 2165ccd979bdSMark Fasheh mlog_exit_void(); 2166ccd979bdSMark Fasheh } 2167ccd979bdSMark Fasheh 2168ccd979bdSMark Fasheh /* Put OCFS2 into a readonly state, or (if the user specifies it), 2169ccd979bdSMark Fasheh * panic(). We do not support continue-on-error operation. */ 2170ccd979bdSMark Fasheh static void ocfs2_handle_error(struct super_block *sb) 2171ccd979bdSMark Fasheh { 2172ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 2173ccd979bdSMark Fasheh 2174ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) 2175ccd979bdSMark Fasheh panic("OCFS2: (device %s): panic forced after error\n", 2176ccd979bdSMark Fasheh sb->s_id); 2177ccd979bdSMark Fasheh 2178ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 2179ccd979bdSMark Fasheh 2180ccd979bdSMark Fasheh if (sb->s_flags & MS_RDONLY && 2181ccd979bdSMark Fasheh (ocfs2_is_soft_readonly(osb) || 2182ccd979bdSMark Fasheh ocfs2_is_hard_readonly(osb))) 2183ccd979bdSMark Fasheh return; 2184ccd979bdSMark Fasheh 2185ccd979bdSMark Fasheh printk(KERN_CRIT "File system is now read-only due to the potential " 2186ccd979bdSMark Fasheh "of on-disk corruption. Please run fsck.ocfs2 once the file " 2187ccd979bdSMark Fasheh "system is unmounted.\n"); 2188ccd979bdSMark Fasheh sb->s_flags |= MS_RDONLY; 2189ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2190ccd979bdSMark Fasheh } 2191ccd979bdSMark Fasheh 2192ccd979bdSMark Fasheh static char error_buf[1024]; 2193ccd979bdSMark Fasheh 2194ccd979bdSMark Fasheh void __ocfs2_error(struct super_block *sb, 2195ccd979bdSMark Fasheh const char *function, 2196ccd979bdSMark Fasheh const char *fmt, ...) 2197ccd979bdSMark Fasheh { 2198ccd979bdSMark Fasheh va_list args; 2199ccd979bdSMark Fasheh 2200ccd979bdSMark Fasheh va_start(args, fmt); 22014a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2202ccd979bdSMark Fasheh va_end(args); 2203ccd979bdSMark Fasheh 2204ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2205ccd979bdSMark Fasheh * function the error came from. */ 2206ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", 2207ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2208ccd979bdSMark Fasheh 2209ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2210ccd979bdSMark Fasheh } 2211ccd979bdSMark Fasheh 2212ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2213ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2214ccd979bdSMark Fasheh * etc. */ 2215ccd979bdSMark Fasheh void __ocfs2_abort(struct super_block* sb, 2216ccd979bdSMark Fasheh const char *function, 2217ccd979bdSMark Fasheh const char *fmt, ...) 2218ccd979bdSMark Fasheh { 2219ccd979bdSMark Fasheh va_list args; 2220ccd979bdSMark Fasheh 2221ccd979bdSMark Fasheh va_start(args, fmt); 22224a6e617aSAlexey Dobriyan vsnprintf(error_buf, sizeof(error_buf), fmt, args); 2223ccd979bdSMark Fasheh va_end(args); 2224ccd979bdSMark Fasheh 2225ccd979bdSMark Fasheh printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", 2226ccd979bdSMark Fasheh sb->s_id, function, error_buf); 2227ccd979bdSMark Fasheh 2228ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2229ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2230ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2231ccd979bdSMark Fasheh * errors. 2232ccd979bdSMark Fasheh * 2233ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2234ccd979bdSMark Fasheh * that our slot needs recovery. */ 2235ccd979bdSMark Fasheh 2236ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2237ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2238ccd979bdSMark Fasheh * here. */ 2239ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2240ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2241ccd979bdSMark Fasheh } 2242ccd979bdSMark Fasheh 2243ccd979bdSMark Fasheh module_init(ocfs2_init); 2244ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2245