1ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 2ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 3ccd979bdSMark Fasheh * 4ccd979bdSMark Fasheh * journal.c 5ccd979bdSMark Fasheh * 6ccd979bdSMark Fasheh * Defines functions of journalling api 7ccd979bdSMark Fasheh * 8ccd979bdSMark Fasheh * Copyright (C) 2003, 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/fs.h> 27ccd979bdSMark Fasheh #include <linux/types.h> 28ccd979bdSMark Fasheh #include <linux/slab.h> 29ccd979bdSMark Fasheh #include <linux/highmem.h> 30ccd979bdSMark Fasheh #include <linux/kthread.h> 31ccd979bdSMark Fasheh 32ccd979bdSMark Fasheh #define MLOG_MASK_PREFIX ML_JOURNAL 33ccd979bdSMark Fasheh #include <cluster/masklog.h> 34ccd979bdSMark Fasheh 35ccd979bdSMark Fasheh #include "ocfs2.h" 36ccd979bdSMark Fasheh 37ccd979bdSMark Fasheh #include "alloc.h" 3850655ae9SJoel Becker #include "blockcheck.h" 39316f4b9fSMark Fasheh #include "dir.h" 40ccd979bdSMark Fasheh #include "dlmglue.h" 41ccd979bdSMark Fasheh #include "extent_map.h" 42ccd979bdSMark Fasheh #include "heartbeat.h" 43ccd979bdSMark Fasheh #include "inode.h" 44ccd979bdSMark Fasheh #include "journal.h" 45ccd979bdSMark Fasheh #include "localalloc.h" 46ccd979bdSMark Fasheh #include "slot_map.h" 47ccd979bdSMark Fasheh #include "super.h" 48ccd979bdSMark Fasheh #include "sysfile.h" 492205363dSJan Kara #include "quota.h" 50ccd979bdSMark Fasheh 51ccd979bdSMark Fasheh #include "buffer_head_io.h" 52ccd979bdSMark Fasheh 5334af946aSIngo Molnar DEFINE_SPINLOCK(trans_inc_lock); 54ccd979bdSMark Fasheh 55ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode); 56ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 572205363dSJan Kara int node_num, int slot_num); 58ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg); 59ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb); 6019ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota); 61ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 62539d8264SSunil Mushran int dirty, int replayed); 63ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 64ccd979bdSMark Fasheh int slot_num); 65ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 66ccd979bdSMark Fasheh int slot); 67ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg); 689140db04SSrinivas Eeda static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 699140db04SSrinivas Eeda int slot_num, 709140db04SSrinivas Eeda struct ocfs2_dinode *la_dinode, 719140db04SSrinivas Eeda struct ocfs2_dinode *tl_dinode, 729140db04SSrinivas Eeda struct ocfs2_quota_recovery *qrec); 73ccd979bdSMark Fasheh 7419ece546SJan Kara static inline int ocfs2_wait_on_mount(struct ocfs2_super *osb) 7519ece546SJan Kara { 7619ece546SJan Kara return __ocfs2_wait_on_mount(osb, 0); 7719ece546SJan Kara } 7819ece546SJan Kara 7919ece546SJan Kara static inline int ocfs2_wait_on_quotas(struct ocfs2_super *osb) 8019ece546SJan Kara { 8119ece546SJan Kara return __ocfs2_wait_on_mount(osb, 1); 8219ece546SJan Kara } 8319ece546SJan Kara 849140db04SSrinivas Eeda /* 859140db04SSrinivas Eeda * This replay_map is to track online/offline slots, so we could recover 869140db04SSrinivas Eeda * offline slots during recovery and mount 879140db04SSrinivas Eeda */ 889140db04SSrinivas Eeda 899140db04SSrinivas Eeda enum ocfs2_replay_state { 909140db04SSrinivas Eeda REPLAY_UNNEEDED = 0, /* Replay is not needed, so ignore this map */ 919140db04SSrinivas Eeda REPLAY_NEEDED, /* Replay slots marked in rm_replay_slots */ 929140db04SSrinivas Eeda REPLAY_DONE /* Replay was already queued */ 939140db04SSrinivas Eeda }; 949140db04SSrinivas Eeda 959140db04SSrinivas Eeda struct ocfs2_replay_map { 969140db04SSrinivas Eeda unsigned int rm_slots; 979140db04SSrinivas Eeda enum ocfs2_replay_state rm_state; 989140db04SSrinivas Eeda unsigned char rm_replay_slots[0]; 999140db04SSrinivas Eeda }; 1009140db04SSrinivas Eeda 1019140db04SSrinivas Eeda void ocfs2_replay_map_set_state(struct ocfs2_super *osb, int state) 1029140db04SSrinivas Eeda { 1039140db04SSrinivas Eeda if (!osb->replay_map) 1049140db04SSrinivas Eeda return; 1059140db04SSrinivas Eeda 1069140db04SSrinivas Eeda /* If we've already queued the replay, we don't have any more to do */ 1079140db04SSrinivas Eeda if (osb->replay_map->rm_state == REPLAY_DONE) 1089140db04SSrinivas Eeda return; 1099140db04SSrinivas Eeda 1109140db04SSrinivas Eeda osb->replay_map->rm_state = state; 1119140db04SSrinivas Eeda } 1129140db04SSrinivas Eeda 1139140db04SSrinivas Eeda int ocfs2_compute_replay_slots(struct ocfs2_super *osb) 1149140db04SSrinivas Eeda { 1159140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map; 1169140db04SSrinivas Eeda int i, node_num; 1179140db04SSrinivas Eeda 1189140db04SSrinivas Eeda /* If replay map is already set, we don't do it again */ 1199140db04SSrinivas Eeda if (osb->replay_map) 1209140db04SSrinivas Eeda return 0; 1219140db04SSrinivas Eeda 1229140db04SSrinivas Eeda replay_map = kzalloc(sizeof(struct ocfs2_replay_map) + 1239140db04SSrinivas Eeda (osb->max_slots * sizeof(char)), GFP_KERNEL); 1249140db04SSrinivas Eeda 1259140db04SSrinivas Eeda if (!replay_map) { 1269140db04SSrinivas Eeda mlog_errno(-ENOMEM); 1279140db04SSrinivas Eeda return -ENOMEM; 1289140db04SSrinivas Eeda } 1299140db04SSrinivas Eeda 1309140db04SSrinivas Eeda spin_lock(&osb->osb_lock); 1319140db04SSrinivas Eeda 1329140db04SSrinivas Eeda replay_map->rm_slots = osb->max_slots; 1339140db04SSrinivas Eeda replay_map->rm_state = REPLAY_UNNEEDED; 1349140db04SSrinivas Eeda 1359140db04SSrinivas Eeda /* set rm_replay_slots for offline slot(s) */ 1369140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) { 1379140db04SSrinivas Eeda if (ocfs2_slot_to_node_num_locked(osb, i, &node_num) == -ENOENT) 1389140db04SSrinivas Eeda replay_map->rm_replay_slots[i] = 1; 1399140db04SSrinivas Eeda } 1409140db04SSrinivas Eeda 1419140db04SSrinivas Eeda osb->replay_map = replay_map; 1429140db04SSrinivas Eeda spin_unlock(&osb->osb_lock); 1439140db04SSrinivas Eeda return 0; 1449140db04SSrinivas Eeda } 1459140db04SSrinivas Eeda 1469140db04SSrinivas Eeda void ocfs2_queue_replay_slots(struct ocfs2_super *osb) 1479140db04SSrinivas Eeda { 1489140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1499140db04SSrinivas Eeda int i; 1509140db04SSrinivas Eeda 1519140db04SSrinivas Eeda if (!replay_map) 1529140db04SSrinivas Eeda return; 1539140db04SSrinivas Eeda 1549140db04SSrinivas Eeda if (replay_map->rm_state != REPLAY_NEEDED) 1559140db04SSrinivas Eeda return; 1569140db04SSrinivas Eeda 1579140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) 1589140db04SSrinivas Eeda if (replay_map->rm_replay_slots[i]) 1599140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, i, NULL, 1609140db04SSrinivas Eeda NULL, NULL); 1619140db04SSrinivas Eeda replay_map->rm_state = REPLAY_DONE; 1629140db04SSrinivas Eeda } 1639140db04SSrinivas Eeda 1649140db04SSrinivas Eeda void ocfs2_free_replay_slots(struct ocfs2_super *osb) 1659140db04SSrinivas Eeda { 1669140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1679140db04SSrinivas Eeda 1689140db04SSrinivas Eeda if (!osb->replay_map) 1699140db04SSrinivas Eeda return; 1709140db04SSrinivas Eeda 1719140db04SSrinivas Eeda kfree(replay_map); 1729140db04SSrinivas Eeda osb->replay_map = NULL; 1739140db04SSrinivas Eeda } 1749140db04SSrinivas Eeda 175553abd04SJoel Becker int ocfs2_recovery_init(struct ocfs2_super *osb) 176553abd04SJoel Becker { 177553abd04SJoel Becker struct ocfs2_recovery_map *rm; 178553abd04SJoel Becker 179553abd04SJoel Becker mutex_init(&osb->recovery_lock); 180553abd04SJoel Becker osb->disable_recovery = 0; 181553abd04SJoel Becker osb->recovery_thread_task = NULL; 182553abd04SJoel Becker init_waitqueue_head(&osb->recovery_event); 183553abd04SJoel Becker 184553abd04SJoel Becker rm = kzalloc(sizeof(struct ocfs2_recovery_map) + 185553abd04SJoel Becker osb->max_slots * sizeof(unsigned int), 186553abd04SJoel Becker GFP_KERNEL); 187553abd04SJoel Becker if (!rm) { 188553abd04SJoel Becker mlog_errno(-ENOMEM); 189553abd04SJoel Becker return -ENOMEM; 190553abd04SJoel Becker } 191553abd04SJoel Becker 192553abd04SJoel Becker rm->rm_entries = (unsigned int *)((char *)rm + 193553abd04SJoel Becker sizeof(struct ocfs2_recovery_map)); 194553abd04SJoel Becker osb->recovery_map = rm; 195553abd04SJoel Becker 196553abd04SJoel Becker return 0; 197553abd04SJoel Becker } 198553abd04SJoel Becker 199553abd04SJoel Becker /* we can't grab the goofy sem lock from inside wait_event, so we use 200553abd04SJoel Becker * memory barriers to make sure that we'll see the null task before 201553abd04SJoel Becker * being woken up */ 202553abd04SJoel Becker static int ocfs2_recovery_thread_running(struct ocfs2_super *osb) 203553abd04SJoel Becker { 204553abd04SJoel Becker mb(); 205553abd04SJoel Becker return osb->recovery_thread_task != NULL; 206553abd04SJoel Becker } 207553abd04SJoel Becker 208553abd04SJoel Becker void ocfs2_recovery_exit(struct ocfs2_super *osb) 209553abd04SJoel Becker { 210553abd04SJoel Becker struct ocfs2_recovery_map *rm; 211553abd04SJoel Becker 212553abd04SJoel Becker /* disable any new recovery threads and wait for any currently 213553abd04SJoel Becker * running ones to exit. Do this before setting the vol_state. */ 214553abd04SJoel Becker mutex_lock(&osb->recovery_lock); 215553abd04SJoel Becker osb->disable_recovery = 1; 216553abd04SJoel Becker mutex_unlock(&osb->recovery_lock); 217553abd04SJoel Becker wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); 218553abd04SJoel Becker 219553abd04SJoel Becker /* At this point, we know that no more recovery threads can be 220553abd04SJoel Becker * launched, so wait for any recovery completion work to 221553abd04SJoel Becker * complete. */ 222553abd04SJoel Becker flush_workqueue(ocfs2_wq); 223553abd04SJoel Becker 224553abd04SJoel Becker /* 225553abd04SJoel Becker * Now that recovery is shut down, and the osb is about to be 226553abd04SJoel Becker * freed, the osb_lock is not taken here. 227553abd04SJoel Becker */ 228553abd04SJoel Becker rm = osb->recovery_map; 229553abd04SJoel Becker /* XXX: Should we bug if there are dirty entries? */ 230553abd04SJoel Becker 231553abd04SJoel Becker kfree(rm); 232553abd04SJoel Becker } 233553abd04SJoel Becker 234553abd04SJoel Becker static int __ocfs2_recovery_map_test(struct ocfs2_super *osb, 235553abd04SJoel Becker unsigned int node_num) 236553abd04SJoel Becker { 237553abd04SJoel Becker int i; 238553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 239553abd04SJoel Becker 240553abd04SJoel Becker assert_spin_locked(&osb->osb_lock); 241553abd04SJoel Becker 242553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 243553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 244553abd04SJoel Becker return 1; 245553abd04SJoel Becker } 246553abd04SJoel Becker 247553abd04SJoel Becker return 0; 248553abd04SJoel Becker } 249553abd04SJoel Becker 250553abd04SJoel Becker /* Behaves like test-and-set. Returns the previous value */ 251553abd04SJoel Becker static int ocfs2_recovery_map_set(struct ocfs2_super *osb, 252553abd04SJoel Becker unsigned int node_num) 253553abd04SJoel Becker { 254553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 255553abd04SJoel Becker 256553abd04SJoel Becker spin_lock(&osb->osb_lock); 257553abd04SJoel Becker if (__ocfs2_recovery_map_test(osb, node_num)) { 258553abd04SJoel Becker spin_unlock(&osb->osb_lock); 259553abd04SJoel Becker return 1; 260553abd04SJoel Becker } 261553abd04SJoel Becker 262553abd04SJoel Becker /* XXX: Can this be exploited? Not from o2dlm... */ 263553abd04SJoel Becker BUG_ON(rm->rm_used >= osb->max_slots); 264553abd04SJoel Becker 265553abd04SJoel Becker rm->rm_entries[rm->rm_used] = node_num; 266553abd04SJoel Becker rm->rm_used++; 267553abd04SJoel Becker spin_unlock(&osb->osb_lock); 268553abd04SJoel Becker 269553abd04SJoel Becker return 0; 270553abd04SJoel Becker } 271553abd04SJoel Becker 272553abd04SJoel Becker static void ocfs2_recovery_map_clear(struct ocfs2_super *osb, 273553abd04SJoel Becker unsigned int node_num) 274553abd04SJoel Becker { 275553abd04SJoel Becker int i; 276553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 277553abd04SJoel Becker 278553abd04SJoel Becker spin_lock(&osb->osb_lock); 279553abd04SJoel Becker 280553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 281553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 282553abd04SJoel Becker break; 283553abd04SJoel Becker } 284553abd04SJoel Becker 285553abd04SJoel Becker if (i < rm->rm_used) { 286553abd04SJoel Becker /* XXX: be careful with the pointer math */ 287553abd04SJoel Becker memmove(&(rm->rm_entries[i]), &(rm->rm_entries[i + 1]), 288553abd04SJoel Becker (rm->rm_used - i - 1) * sizeof(unsigned int)); 289553abd04SJoel Becker rm->rm_used--; 290553abd04SJoel Becker } 291553abd04SJoel Becker 292553abd04SJoel Becker spin_unlock(&osb->osb_lock); 293553abd04SJoel Becker } 294553abd04SJoel Becker 295ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb) 296ccd979bdSMark Fasheh { 297ccd979bdSMark Fasheh int status = 0; 298ccd979bdSMark Fasheh unsigned int flushed; 299ccd979bdSMark Fasheh unsigned long old_id; 300ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 301ccd979bdSMark Fasheh 302ccd979bdSMark Fasheh mlog_entry_void(); 303ccd979bdSMark Fasheh 304ccd979bdSMark Fasheh journal = osb->journal; 305ccd979bdSMark Fasheh 306ccd979bdSMark Fasheh /* Flush all pending commits and checkpoint the journal. */ 307ccd979bdSMark Fasheh down_write(&journal->j_trans_barrier); 308ccd979bdSMark Fasheh 309ccd979bdSMark Fasheh if (atomic_read(&journal->j_num_trans) == 0) { 310ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 311ccd979bdSMark Fasheh mlog(0, "No transactions for me to flush!\n"); 312ccd979bdSMark Fasheh goto finally; 313ccd979bdSMark Fasheh } 314ccd979bdSMark Fasheh 3152b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 3162b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 3172b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 318ccd979bdSMark Fasheh if (status < 0) { 319ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 320ccd979bdSMark Fasheh mlog_errno(status); 321ccd979bdSMark Fasheh goto finally; 322ccd979bdSMark Fasheh } 323ccd979bdSMark Fasheh 324ccd979bdSMark Fasheh old_id = ocfs2_inc_trans_id(journal); 325ccd979bdSMark Fasheh 326ccd979bdSMark Fasheh flushed = atomic_read(&journal->j_num_trans); 327ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 328ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 329ccd979bdSMark Fasheh 330ccd979bdSMark Fasheh mlog(0, "commit_thread: flushed transaction %lu (%u handles)\n", 331ccd979bdSMark Fasheh journal->j_trans_id, flushed); 332ccd979bdSMark Fasheh 33334d024f8SMark Fasheh ocfs2_wake_downconvert_thread(osb); 334ccd979bdSMark Fasheh wake_up(&journal->j_checkpointed); 335ccd979bdSMark Fasheh finally: 336ccd979bdSMark Fasheh mlog_exit(status); 337ccd979bdSMark Fasheh return status; 338ccd979bdSMark Fasheh } 339ccd979bdSMark Fasheh 340ccd979bdSMark Fasheh /* pass it NULL and it will allocate a new handle object for you. If 341ccd979bdSMark Fasheh * you pass it a handle however, it may still return error, in which 342ccd979bdSMark Fasheh * case it has free'd the passed handle for you. */ 3431fabe148SMark Fasheh handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs) 344ccd979bdSMark Fasheh { 345ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 3461fabe148SMark Fasheh handle_t *handle; 347ccd979bdSMark Fasheh 348ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb || !osb->journal->j_journal); 349ccd979bdSMark Fasheh 35065eff9ccSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 35165eff9ccSMark Fasheh return ERR_PTR(-EROFS); 352ccd979bdSMark Fasheh 353ccd979bdSMark Fasheh BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); 354ccd979bdSMark Fasheh BUG_ON(max_buffs <= 0); 355ccd979bdSMark Fasheh 35690e86a63SJan Kara /* Nested transaction? Just return the handle... */ 35790e86a63SJan Kara if (journal_current_handle()) 35890e86a63SJan Kara return jbd2_journal_start(journal, max_buffs); 359ccd979bdSMark Fasheh 360ccd979bdSMark Fasheh down_read(&osb->journal->j_trans_barrier); 361ccd979bdSMark Fasheh 3622b4e30fbSJoel Becker handle = jbd2_journal_start(journal, max_buffs); 3631fabe148SMark Fasheh if (IS_ERR(handle)) { 364ccd979bdSMark Fasheh up_read(&osb->journal->j_trans_barrier); 365ccd979bdSMark Fasheh 3661fabe148SMark Fasheh mlog_errno(PTR_ERR(handle)); 367ccd979bdSMark Fasheh 368ccd979bdSMark Fasheh if (is_journal_aborted(journal)) { 369ccd979bdSMark Fasheh ocfs2_abort(osb->sb, "Detected aborted journal"); 3701fabe148SMark Fasheh handle = ERR_PTR(-EROFS); 371ccd979bdSMark Fasheh } 372c271c5c2SSunil Mushran } else { 373c271c5c2SSunil Mushran if (!ocfs2_mount_local(osb)) 374ccd979bdSMark Fasheh atomic_inc(&(osb->journal->j_num_trans)); 375c271c5c2SSunil Mushran } 376ccd979bdSMark Fasheh 377ccd979bdSMark Fasheh return handle; 378ccd979bdSMark Fasheh } 379ccd979bdSMark Fasheh 3801fabe148SMark Fasheh int ocfs2_commit_trans(struct ocfs2_super *osb, 3811fabe148SMark Fasheh handle_t *handle) 382ccd979bdSMark Fasheh { 38390e86a63SJan Kara int ret, nested; 38402dc1af4SMark Fasheh struct ocfs2_journal *journal = osb->journal; 385ccd979bdSMark Fasheh 386ccd979bdSMark Fasheh BUG_ON(!handle); 387ccd979bdSMark Fasheh 38890e86a63SJan Kara nested = handle->h_ref > 1; 3892b4e30fbSJoel Becker ret = jbd2_journal_stop(handle); 3901fabe148SMark Fasheh if (ret < 0) 3911fabe148SMark Fasheh mlog_errno(ret); 392ccd979bdSMark Fasheh 39390e86a63SJan Kara if (!nested) 394ccd979bdSMark Fasheh up_read(&journal->j_trans_barrier); 395ccd979bdSMark Fasheh 3961fabe148SMark Fasheh return ret; 397ccd979bdSMark Fasheh } 398ccd979bdSMark Fasheh 399ccd979bdSMark Fasheh /* 400ccd979bdSMark Fasheh * 'nblocks' is what you want to add to the current 401ccd979bdSMark Fasheh * transaction. extend_trans will either extend the current handle by 402ccd979bdSMark Fasheh * nblocks, or commit it and start a new one with nblocks credits. 403ccd979bdSMark Fasheh * 4042b4e30fbSJoel Becker * This might call jbd2_journal_restart() which will commit dirty buffers 405e8aed345SMark Fasheh * and then restart the transaction. Before calling 406e8aed345SMark Fasheh * ocfs2_extend_trans(), any changed blocks should have been 407e8aed345SMark Fasheh * dirtied. After calling it, all blocks which need to be changed must 408e8aed345SMark Fasheh * go through another set of journal_access/journal_dirty calls. 409e8aed345SMark Fasheh * 410ccd979bdSMark Fasheh * WARNING: This will not release any semaphores or disk locks taken 411ccd979bdSMark Fasheh * during the transaction, so make sure they were taken *before* 412ccd979bdSMark Fasheh * start_trans or we'll have ordering deadlocks. 413ccd979bdSMark Fasheh * 414ccd979bdSMark Fasheh * WARNING2: Note that we do *not* drop j_trans_barrier here. This is 415ccd979bdSMark Fasheh * good because transaction ids haven't yet been recorded on the 416ccd979bdSMark Fasheh * cluster locks associated with this handle. 417ccd979bdSMark Fasheh */ 4181fc58146SMark Fasheh int ocfs2_extend_trans(handle_t *handle, int nblocks) 419ccd979bdSMark Fasheh { 420ccd979bdSMark Fasheh int status; 421ccd979bdSMark Fasheh 422ccd979bdSMark Fasheh BUG_ON(!handle); 423ccd979bdSMark Fasheh BUG_ON(!nblocks); 424ccd979bdSMark Fasheh 425ccd979bdSMark Fasheh mlog_entry_void(); 426ccd979bdSMark Fasheh 427ccd979bdSMark Fasheh mlog(0, "Trying to extend transaction by %d blocks\n", nblocks); 428ccd979bdSMark Fasheh 429e407e397SJoel Becker #ifdef CONFIG_OCFS2_DEBUG_FS 4300879c584SMark Fasheh status = 1; 4310879c584SMark Fasheh #else 4322b4e30fbSJoel Becker status = jbd2_journal_extend(handle, nblocks); 433ccd979bdSMark Fasheh if (status < 0) { 434ccd979bdSMark Fasheh mlog_errno(status); 435ccd979bdSMark Fasheh goto bail; 436ccd979bdSMark Fasheh } 4370879c584SMark Fasheh #endif 438ccd979bdSMark Fasheh 439ccd979bdSMark Fasheh if (status > 0) { 4402b4e30fbSJoel Becker mlog(0, 4412b4e30fbSJoel Becker "jbd2_journal_extend failed, trying " 4422b4e30fbSJoel Becker "jbd2_journal_restart\n"); 4432b4e30fbSJoel Becker status = jbd2_journal_restart(handle, nblocks); 444ccd979bdSMark Fasheh if (status < 0) { 445ccd979bdSMark Fasheh mlog_errno(status); 446ccd979bdSMark Fasheh goto bail; 447ccd979bdSMark Fasheh } 44801ddf1e1SMark Fasheh } 449ccd979bdSMark Fasheh 450ccd979bdSMark Fasheh status = 0; 451ccd979bdSMark Fasheh bail: 452ccd979bdSMark Fasheh 453ccd979bdSMark Fasheh mlog_exit(status); 454ccd979bdSMark Fasheh return status; 455ccd979bdSMark Fasheh } 456ccd979bdSMark Fasheh 45750655ae9SJoel Becker struct ocfs2_triggers { 45850655ae9SJoel Becker struct jbd2_buffer_trigger_type ot_triggers; 45950655ae9SJoel Becker int ot_offset; 46050655ae9SJoel Becker }; 46150655ae9SJoel Becker 46250655ae9SJoel Becker static inline struct ocfs2_triggers *to_ocfs2_trigger(struct jbd2_buffer_trigger_type *triggers) 46350655ae9SJoel Becker { 46450655ae9SJoel Becker return container_of(triggers, struct ocfs2_triggers, ot_triggers); 46550655ae9SJoel Becker } 46650655ae9SJoel Becker 46750655ae9SJoel Becker static void ocfs2_commit_trigger(struct jbd2_buffer_trigger_type *triggers, 46850655ae9SJoel Becker struct buffer_head *bh, 46950655ae9SJoel Becker void *data, size_t size) 47050655ae9SJoel Becker { 47150655ae9SJoel Becker struct ocfs2_triggers *ot = to_ocfs2_trigger(triggers); 47250655ae9SJoel Becker 47350655ae9SJoel Becker /* 47450655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 47550655ae9SJoel Becker * must unconditionally compute the ecc data. 47650655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 47750655ae9SJoel Becker * metaecc is enabled. 47850655ae9SJoel Becker */ 47950655ae9SJoel Becker ocfs2_block_check_compute(data, size, data + ot->ot_offset); 48050655ae9SJoel Becker } 48150655ae9SJoel Becker 48250655ae9SJoel Becker /* 48350655ae9SJoel Becker * Quota blocks have their own trigger because the struct ocfs2_block_check 48450655ae9SJoel Becker * offset depends on the blocksize. 48550655ae9SJoel Becker */ 48650655ae9SJoel Becker static void ocfs2_dq_commit_trigger(struct jbd2_buffer_trigger_type *triggers, 48750655ae9SJoel Becker struct buffer_head *bh, 48850655ae9SJoel Becker void *data, size_t size) 48950655ae9SJoel Becker { 49050655ae9SJoel Becker struct ocfs2_disk_dqtrailer *dqt = 49150655ae9SJoel Becker ocfs2_block_dqtrailer(size, data); 49250655ae9SJoel Becker 49350655ae9SJoel Becker /* 49450655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 49550655ae9SJoel Becker * must unconditionally compute the ecc data. 49650655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 49750655ae9SJoel Becker * metaecc is enabled. 49850655ae9SJoel Becker */ 49950655ae9SJoel Becker ocfs2_block_check_compute(data, size, &dqt->dq_check); 50050655ae9SJoel Becker } 50150655ae9SJoel Becker 502c175a518SJoel Becker /* 503c175a518SJoel Becker * Directory blocks also have their own trigger because the 504c175a518SJoel Becker * struct ocfs2_block_check offset depends on the blocksize. 505c175a518SJoel Becker */ 506c175a518SJoel Becker static void ocfs2_db_commit_trigger(struct jbd2_buffer_trigger_type *triggers, 507c175a518SJoel Becker struct buffer_head *bh, 508c175a518SJoel Becker void *data, size_t size) 509c175a518SJoel Becker { 510c175a518SJoel Becker struct ocfs2_dir_block_trailer *trailer = 511c175a518SJoel Becker ocfs2_dir_trailer_from_size(size, data); 512c175a518SJoel Becker 513c175a518SJoel Becker /* 514c175a518SJoel Becker * We aren't guaranteed to have the superblock here, so we 515c175a518SJoel Becker * must unconditionally compute the ecc data. 516c175a518SJoel Becker * __ocfs2_journal_access() will only set the triggers if 517c175a518SJoel Becker * metaecc is enabled. 518c175a518SJoel Becker */ 519c175a518SJoel Becker ocfs2_block_check_compute(data, size, &trailer->db_check); 520c175a518SJoel Becker } 521c175a518SJoel Becker 52250655ae9SJoel Becker static void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *triggers, 52350655ae9SJoel Becker struct buffer_head *bh) 52450655ae9SJoel Becker { 52550655ae9SJoel Becker mlog(ML_ERROR, 52650655ae9SJoel Becker "ocfs2_abort_trigger called by JBD2. bh = 0x%lx, " 52750655ae9SJoel Becker "bh->b_blocknr = %llu\n", 52850655ae9SJoel Becker (unsigned long)bh, 52950655ae9SJoel Becker (unsigned long long)bh->b_blocknr); 53050655ae9SJoel Becker 53150655ae9SJoel Becker /* We aren't guaranteed to have the superblock here - but if we 53250655ae9SJoel Becker * don't, it'll just crash. */ 53350655ae9SJoel Becker ocfs2_error(bh->b_assoc_map->host->i_sb, 53450655ae9SJoel Becker "JBD2 has aborted our journal, ocfs2 cannot continue\n"); 53550655ae9SJoel Becker } 53650655ae9SJoel Becker 53750655ae9SJoel Becker static struct ocfs2_triggers di_triggers = { 53850655ae9SJoel Becker .ot_triggers = { 53950655ae9SJoel Becker .t_commit = ocfs2_commit_trigger, 54050655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 54150655ae9SJoel Becker }, 54250655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_dinode, i_check), 54350655ae9SJoel Becker }; 54450655ae9SJoel Becker 54550655ae9SJoel Becker static struct ocfs2_triggers eb_triggers = { 54650655ae9SJoel Becker .ot_triggers = { 54750655ae9SJoel Becker .t_commit = ocfs2_commit_trigger, 54850655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 54950655ae9SJoel Becker }, 55050655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_extent_block, h_check), 55150655ae9SJoel Becker }; 55250655ae9SJoel Becker 55350655ae9SJoel Becker static struct ocfs2_triggers gd_triggers = { 55450655ae9SJoel Becker .ot_triggers = { 55550655ae9SJoel Becker .t_commit = ocfs2_commit_trigger, 55650655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 55750655ae9SJoel Becker }, 55850655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_group_desc, bg_check), 55950655ae9SJoel Becker }; 56050655ae9SJoel Becker 561c175a518SJoel Becker static struct ocfs2_triggers db_triggers = { 562c175a518SJoel Becker .ot_triggers = { 563c175a518SJoel Becker .t_commit = ocfs2_db_commit_trigger, 564c175a518SJoel Becker .t_abort = ocfs2_abort_trigger, 565c175a518SJoel Becker }, 566c175a518SJoel Becker }; 567c175a518SJoel Becker 56850655ae9SJoel Becker static struct ocfs2_triggers xb_triggers = { 56950655ae9SJoel Becker .ot_triggers = { 57050655ae9SJoel Becker .t_commit = ocfs2_commit_trigger, 57150655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 57250655ae9SJoel Becker }, 57350655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_xattr_block, xb_check), 57450655ae9SJoel Becker }; 57550655ae9SJoel Becker 57650655ae9SJoel Becker static struct ocfs2_triggers dq_triggers = { 57750655ae9SJoel Becker .ot_triggers = { 57850655ae9SJoel Becker .t_commit = ocfs2_dq_commit_trigger, 57950655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 58050655ae9SJoel Becker }, 58150655ae9SJoel Becker }; 58250655ae9SJoel Becker 5839b7895efSMark Fasheh static struct ocfs2_triggers dr_triggers = { 5849b7895efSMark Fasheh .ot_triggers = { 5859b7895efSMark Fasheh .t_commit = ocfs2_commit_trigger, 5869b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 5879b7895efSMark Fasheh }, 5889b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_root_block, dr_check), 5899b7895efSMark Fasheh }; 5909b7895efSMark Fasheh 5919b7895efSMark Fasheh static struct ocfs2_triggers dl_triggers = { 5929b7895efSMark Fasheh .ot_triggers = { 5939b7895efSMark Fasheh .t_commit = ocfs2_commit_trigger, 5949b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 5959b7895efSMark Fasheh }, 5969b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_leaf, dl_check), 5979b7895efSMark Fasheh }; 5989b7895efSMark Fasheh 59950655ae9SJoel Becker static int __ocfs2_journal_access(handle_t *handle, 600ccd979bdSMark Fasheh struct inode *inode, 601ccd979bdSMark Fasheh struct buffer_head *bh, 60250655ae9SJoel Becker struct ocfs2_triggers *triggers, 603ccd979bdSMark Fasheh int type) 604ccd979bdSMark Fasheh { 605ccd979bdSMark Fasheh int status; 606ccd979bdSMark Fasheh 607ccd979bdSMark Fasheh BUG_ON(!inode); 608ccd979bdSMark Fasheh BUG_ON(!handle); 609ccd979bdSMark Fasheh BUG_ON(!bh); 610ccd979bdSMark Fasheh 611205f87f6SBadari Pulavarty mlog_entry("bh->b_blocknr=%llu, type=%d (\"%s\"), bh->b_size = %zu\n", 612ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr, type, 613ccd979bdSMark Fasheh (type == OCFS2_JOURNAL_ACCESS_CREATE) ? 614ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_CREATE" : 615ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_WRITE", 616ccd979bdSMark Fasheh bh->b_size); 617ccd979bdSMark Fasheh 618ccd979bdSMark Fasheh /* we can safely remove this assertion after testing. */ 619ccd979bdSMark Fasheh if (!buffer_uptodate(bh)) { 620ccd979bdSMark Fasheh mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); 621ccd979bdSMark Fasheh mlog(ML_ERROR, "b_blocknr=%llu\n", 622ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 623ccd979bdSMark Fasheh BUG(); 624ccd979bdSMark Fasheh } 625ccd979bdSMark Fasheh 626ccd979bdSMark Fasheh /* Set the current transaction information on the inode so 627ccd979bdSMark Fasheh * that the locking code knows whether it can drop it's locks 628ccd979bdSMark Fasheh * on this inode or not. We're protected from the commit 629ccd979bdSMark Fasheh * thread updating the current transaction id until 630ccd979bdSMark Fasheh * ocfs2_commit_trans() because ocfs2_start_trans() took 631ccd979bdSMark Fasheh * j_trans_barrier for us. */ 632ccd979bdSMark Fasheh ocfs2_set_inode_lock_trans(OCFS2_SB(inode->i_sb)->journal, inode); 633ccd979bdSMark Fasheh 634251b6eccSMark Fasheh mutex_lock(&OCFS2_I(inode)->ip_io_mutex); 635ccd979bdSMark Fasheh switch (type) { 636ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_CREATE: 637ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_WRITE: 6382b4e30fbSJoel Becker status = jbd2_journal_get_write_access(handle, bh); 639ccd979bdSMark Fasheh break; 640ccd979bdSMark Fasheh 641ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_UNDO: 6422b4e30fbSJoel Becker status = jbd2_journal_get_undo_access(handle, bh); 643ccd979bdSMark Fasheh break; 644ccd979bdSMark Fasheh 645ccd979bdSMark Fasheh default: 646ccd979bdSMark Fasheh status = -EINVAL; 647ccd979bdSMark Fasheh mlog(ML_ERROR, "Uknown access type!\n"); 648ccd979bdSMark Fasheh } 64950655ae9SJoel Becker if (!status && ocfs2_meta_ecc(OCFS2_SB(inode->i_sb)) && triggers) 65050655ae9SJoel Becker jbd2_journal_set_triggers(bh, &triggers->ot_triggers); 651251b6eccSMark Fasheh mutex_unlock(&OCFS2_I(inode)->ip_io_mutex); 652ccd979bdSMark Fasheh 653ccd979bdSMark Fasheh if (status < 0) 654ccd979bdSMark Fasheh mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", 655ccd979bdSMark Fasheh status, type); 656ccd979bdSMark Fasheh 657ccd979bdSMark Fasheh mlog_exit(status); 658ccd979bdSMark Fasheh return status; 659ccd979bdSMark Fasheh } 660ccd979bdSMark Fasheh 66150655ae9SJoel Becker int ocfs2_journal_access_di(handle_t *handle, struct inode *inode, 66250655ae9SJoel Becker struct buffer_head *bh, int type) 66350655ae9SJoel Becker { 66450655ae9SJoel Becker return __ocfs2_journal_access(handle, inode, bh, &di_triggers, 66550655ae9SJoel Becker type); 66650655ae9SJoel Becker } 66750655ae9SJoel Becker 66850655ae9SJoel Becker int ocfs2_journal_access_eb(handle_t *handle, struct inode *inode, 66950655ae9SJoel Becker struct buffer_head *bh, int type) 67050655ae9SJoel Becker { 67150655ae9SJoel Becker return __ocfs2_journal_access(handle, inode, bh, &eb_triggers, 67250655ae9SJoel Becker type); 67350655ae9SJoel Becker } 67450655ae9SJoel Becker 67550655ae9SJoel Becker int ocfs2_journal_access_gd(handle_t *handle, struct inode *inode, 67650655ae9SJoel Becker struct buffer_head *bh, int type) 67750655ae9SJoel Becker { 67850655ae9SJoel Becker return __ocfs2_journal_access(handle, inode, bh, &gd_triggers, 67950655ae9SJoel Becker type); 68050655ae9SJoel Becker } 68150655ae9SJoel Becker 68250655ae9SJoel Becker int ocfs2_journal_access_db(handle_t *handle, struct inode *inode, 68350655ae9SJoel Becker struct buffer_head *bh, int type) 68450655ae9SJoel Becker { 685c175a518SJoel Becker return __ocfs2_journal_access(handle, inode, bh, &db_triggers, 686c175a518SJoel Becker type); 68750655ae9SJoel Becker } 68850655ae9SJoel Becker 68950655ae9SJoel Becker int ocfs2_journal_access_xb(handle_t *handle, struct inode *inode, 69050655ae9SJoel Becker struct buffer_head *bh, int type) 69150655ae9SJoel Becker { 69250655ae9SJoel Becker return __ocfs2_journal_access(handle, inode, bh, &xb_triggers, 69350655ae9SJoel Becker type); 69450655ae9SJoel Becker } 69550655ae9SJoel Becker 69650655ae9SJoel Becker int ocfs2_journal_access_dq(handle_t *handle, struct inode *inode, 69750655ae9SJoel Becker struct buffer_head *bh, int type) 69850655ae9SJoel Becker { 69950655ae9SJoel Becker return __ocfs2_journal_access(handle, inode, bh, &dq_triggers, 70050655ae9SJoel Becker type); 70150655ae9SJoel Becker } 70250655ae9SJoel Becker 7039b7895efSMark Fasheh int ocfs2_journal_access_dr(handle_t *handle, struct inode *inode, 7049b7895efSMark Fasheh struct buffer_head *bh, int type) 7059b7895efSMark Fasheh { 7069b7895efSMark Fasheh return __ocfs2_journal_access(handle, inode, bh, &dr_triggers, 7079b7895efSMark Fasheh type); 7089b7895efSMark Fasheh } 7099b7895efSMark Fasheh 7109b7895efSMark Fasheh int ocfs2_journal_access_dl(handle_t *handle, struct inode *inode, 7119b7895efSMark Fasheh struct buffer_head *bh, int type) 7129b7895efSMark Fasheh { 7139b7895efSMark Fasheh return __ocfs2_journal_access(handle, inode, bh, &dl_triggers, 7149b7895efSMark Fasheh type); 7159b7895efSMark Fasheh } 7169b7895efSMark Fasheh 71750655ae9SJoel Becker int ocfs2_journal_access(handle_t *handle, struct inode *inode, 71850655ae9SJoel Becker struct buffer_head *bh, int type) 71950655ae9SJoel Becker { 72050655ae9SJoel Becker return __ocfs2_journal_access(handle, inode, bh, NULL, type); 72150655ae9SJoel Becker } 72250655ae9SJoel Becker 7231fabe148SMark Fasheh int ocfs2_journal_dirty(handle_t *handle, 724ccd979bdSMark Fasheh struct buffer_head *bh) 725ccd979bdSMark Fasheh { 726ccd979bdSMark Fasheh int status; 727ccd979bdSMark Fasheh 728ccd979bdSMark Fasheh mlog_entry("(bh->b_blocknr=%llu)\n", 729ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 730ccd979bdSMark Fasheh 7312b4e30fbSJoel Becker status = jbd2_journal_dirty_metadata(handle, bh); 732ccd979bdSMark Fasheh if (status < 0) 733ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not dirty metadata buffer. " 734ccd979bdSMark Fasheh "(bh->b_blocknr=%llu)\n", 735ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 736ccd979bdSMark Fasheh 737ccd979bdSMark Fasheh mlog_exit(status); 738ccd979bdSMark Fasheh return status; 739ccd979bdSMark Fasheh } 740ccd979bdSMark Fasheh 7412b4e30fbSJoel Becker #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE) 742ccd979bdSMark Fasheh 743ccd979bdSMark Fasheh void ocfs2_set_journal_params(struct ocfs2_super *osb) 744ccd979bdSMark Fasheh { 745ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 746d147b3d6SMark Fasheh unsigned long commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; 747d147b3d6SMark Fasheh 748d147b3d6SMark Fasheh if (osb->osb_commit_interval) 749d147b3d6SMark Fasheh commit_interval = osb->osb_commit_interval; 750ccd979bdSMark Fasheh 751ccd979bdSMark Fasheh spin_lock(&journal->j_state_lock); 752d147b3d6SMark Fasheh journal->j_commit_interval = commit_interval; 753ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) 7542b4e30fbSJoel Becker journal->j_flags |= JBD2_BARRIER; 755ccd979bdSMark Fasheh else 7562b4e30fbSJoel Becker journal->j_flags &= ~JBD2_BARRIER; 757ccd979bdSMark Fasheh spin_unlock(&journal->j_state_lock); 758ccd979bdSMark Fasheh } 759ccd979bdSMark Fasheh 760ccd979bdSMark Fasheh int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty) 761ccd979bdSMark Fasheh { 762ccd979bdSMark Fasheh int status = -1; 763ccd979bdSMark Fasheh struct inode *inode = NULL; /* the journal inode */ 764ccd979bdSMark Fasheh journal_t *j_journal = NULL; 765ccd979bdSMark Fasheh struct ocfs2_dinode *di = NULL; 766ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 767ccd979bdSMark Fasheh struct ocfs2_super *osb; 768e63aecb6SMark Fasheh int inode_lock = 0; 769ccd979bdSMark Fasheh 770ccd979bdSMark Fasheh mlog_entry_void(); 771ccd979bdSMark Fasheh 772ccd979bdSMark Fasheh BUG_ON(!journal); 773ccd979bdSMark Fasheh 774ccd979bdSMark Fasheh osb = journal->j_osb; 775ccd979bdSMark Fasheh 776ccd979bdSMark Fasheh /* already have the inode for our journal */ 777ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 778ccd979bdSMark Fasheh osb->slot_num); 779ccd979bdSMark Fasheh if (inode == NULL) { 780ccd979bdSMark Fasheh status = -EACCES; 781ccd979bdSMark Fasheh mlog_errno(status); 782ccd979bdSMark Fasheh goto done; 783ccd979bdSMark Fasheh } 784ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 785ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 786ccd979bdSMark Fasheh iput(inode); 787ccd979bdSMark Fasheh inode = NULL; 788ccd979bdSMark Fasheh status = -EACCES; 789ccd979bdSMark Fasheh goto done; 790ccd979bdSMark Fasheh } 791ccd979bdSMark Fasheh 792ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 793ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count++; 794ccd979bdSMark Fasheh 7956eff5790SMark Fasheh /* Skip recovery waits here - journal inode metadata never 7966eff5790SMark Fasheh * changes in a live cluster so it can be considered an 7976eff5790SMark Fasheh * exception to the rule. */ 798e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 799ccd979bdSMark Fasheh if (status < 0) { 800ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 801ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not get lock on journal!\n"); 802ccd979bdSMark Fasheh goto done; 803ccd979bdSMark Fasheh } 804ccd979bdSMark Fasheh 805e63aecb6SMark Fasheh inode_lock = 1; 806ccd979bdSMark Fasheh di = (struct ocfs2_dinode *)bh->b_data; 807ccd979bdSMark Fasheh 808ccd979bdSMark Fasheh if (inode->i_size < OCFS2_MIN_JOURNAL_SIZE) { 809ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", 810ccd979bdSMark Fasheh inode->i_size); 811ccd979bdSMark Fasheh status = -EINVAL; 812ccd979bdSMark Fasheh goto done; 813ccd979bdSMark Fasheh } 814ccd979bdSMark Fasheh 815ccd979bdSMark Fasheh mlog(0, "inode->i_size = %lld\n", inode->i_size); 8165515eff8SAndrew Morton mlog(0, "inode->i_blocks = %llu\n", 8175515eff8SAndrew Morton (unsigned long long)inode->i_blocks); 818ccd979bdSMark Fasheh mlog(0, "inode->ip_clusters = %u\n", OCFS2_I(inode)->ip_clusters); 819ccd979bdSMark Fasheh 820ccd979bdSMark Fasheh /* call the kernels journal init function now */ 8212b4e30fbSJoel Becker j_journal = jbd2_journal_init_inode(inode); 822ccd979bdSMark Fasheh if (j_journal == NULL) { 823ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 824ccd979bdSMark Fasheh status = -EINVAL; 825ccd979bdSMark Fasheh goto done; 826ccd979bdSMark Fasheh } 827ccd979bdSMark Fasheh 8282b4e30fbSJoel Becker mlog(0, "Returned from jbd2_journal_init_inode\n"); 829ccd979bdSMark Fasheh mlog(0, "j_journal->j_maxlen = %u\n", j_journal->j_maxlen); 830ccd979bdSMark Fasheh 831ccd979bdSMark Fasheh *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & 832ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL); 833ccd979bdSMark Fasheh 834ccd979bdSMark Fasheh journal->j_journal = j_journal; 835ccd979bdSMark Fasheh journal->j_inode = inode; 836ccd979bdSMark Fasheh journal->j_bh = bh; 837ccd979bdSMark Fasheh 838ccd979bdSMark Fasheh ocfs2_set_journal_params(osb); 839ccd979bdSMark Fasheh 840ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_LOADED; 841ccd979bdSMark Fasheh 842ccd979bdSMark Fasheh status = 0; 843ccd979bdSMark Fasheh done: 844ccd979bdSMark Fasheh if (status < 0) { 845e63aecb6SMark Fasheh if (inode_lock) 846e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 847ccd979bdSMark Fasheh brelse(bh); 848ccd979bdSMark Fasheh if (inode) { 849ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 850ccd979bdSMark Fasheh iput(inode); 851ccd979bdSMark Fasheh } 852ccd979bdSMark Fasheh } 853ccd979bdSMark Fasheh 854ccd979bdSMark Fasheh mlog_exit(status); 855ccd979bdSMark Fasheh return status; 856ccd979bdSMark Fasheh } 857ccd979bdSMark Fasheh 858539d8264SSunil Mushran static void ocfs2_bump_recovery_generation(struct ocfs2_dinode *di) 859539d8264SSunil Mushran { 860539d8264SSunil Mushran le32_add_cpu(&(di->id1.journal1.ij_recovery_generation), 1); 861539d8264SSunil Mushran } 862539d8264SSunil Mushran 863539d8264SSunil Mushran static u32 ocfs2_get_recovery_generation(struct ocfs2_dinode *di) 864539d8264SSunil Mushran { 865539d8264SSunil Mushran return le32_to_cpu(di->id1.journal1.ij_recovery_generation); 866539d8264SSunil Mushran } 867539d8264SSunil Mushran 868ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 869539d8264SSunil Mushran int dirty, int replayed) 870ccd979bdSMark Fasheh { 871ccd979bdSMark Fasheh int status; 872ccd979bdSMark Fasheh unsigned int flags; 873ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 874ccd979bdSMark Fasheh struct buffer_head *bh = journal->j_bh; 875ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 876ccd979bdSMark Fasheh 877ccd979bdSMark Fasheh mlog_entry_void(); 878ccd979bdSMark Fasheh 879ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *)bh->b_data; 88010995aa2SJoel Becker 88110995aa2SJoel Becker /* The journal bh on the osb always comes from ocfs2_journal_init() 88210995aa2SJoel Becker * and was validated there inside ocfs2_inode_lock_full(). It's a 88310995aa2SJoel Becker * code bug if we mess it up. */ 88410995aa2SJoel Becker BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); 885ccd979bdSMark Fasheh 886ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 887ccd979bdSMark Fasheh if (dirty) 888ccd979bdSMark Fasheh flags |= OCFS2_JOURNAL_DIRTY_FL; 889ccd979bdSMark Fasheh else 890ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 891ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 892ccd979bdSMark Fasheh 893539d8264SSunil Mushran if (replayed) 894539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 895539d8264SSunil Mushran 89613723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 897ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, journal->j_inode); 898ccd979bdSMark Fasheh if (status < 0) 899ccd979bdSMark Fasheh mlog_errno(status); 900ccd979bdSMark Fasheh 901ccd979bdSMark Fasheh mlog_exit(status); 902ccd979bdSMark Fasheh return status; 903ccd979bdSMark Fasheh } 904ccd979bdSMark Fasheh 905ccd979bdSMark Fasheh /* 906ccd979bdSMark Fasheh * If the journal has been kmalloc'd it needs to be freed after this 907ccd979bdSMark Fasheh * call. 908ccd979bdSMark Fasheh */ 909ccd979bdSMark Fasheh void ocfs2_journal_shutdown(struct ocfs2_super *osb) 910ccd979bdSMark Fasheh { 911ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 912ccd979bdSMark Fasheh int status = 0; 913ccd979bdSMark Fasheh struct inode *inode = NULL; 914ccd979bdSMark Fasheh int num_running_trans = 0; 915ccd979bdSMark Fasheh 916ccd979bdSMark Fasheh mlog_entry_void(); 917ccd979bdSMark Fasheh 918ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb); 919ccd979bdSMark Fasheh 920ccd979bdSMark Fasheh journal = osb->journal; 921ccd979bdSMark Fasheh if (!journal) 922ccd979bdSMark Fasheh goto done; 923ccd979bdSMark Fasheh 924ccd979bdSMark Fasheh inode = journal->j_inode; 925ccd979bdSMark Fasheh 926ccd979bdSMark Fasheh if (journal->j_state != OCFS2_JOURNAL_LOADED) 927ccd979bdSMark Fasheh goto done; 928ccd979bdSMark Fasheh 9292b4e30fbSJoel Becker /* need to inc inode use count - jbd2_journal_destroy will iput. */ 930ccd979bdSMark Fasheh if (!igrab(inode)) 931ccd979bdSMark Fasheh BUG(); 932ccd979bdSMark Fasheh 933ccd979bdSMark Fasheh num_running_trans = atomic_read(&(osb->journal->j_num_trans)); 934ccd979bdSMark Fasheh if (num_running_trans > 0) 935ccd979bdSMark Fasheh mlog(0, "Shutting down journal: must wait on %d " 936ccd979bdSMark Fasheh "running transactions!\n", 937ccd979bdSMark Fasheh num_running_trans); 938ccd979bdSMark Fasheh 939ccd979bdSMark Fasheh /* Do a commit_cache here. It will flush our journal, *and* 940ccd979bdSMark Fasheh * release any locks that are still held. 941ccd979bdSMark Fasheh * set the SHUTDOWN flag and release the trans lock. 942ccd979bdSMark Fasheh * the commit thread will take the trans lock for us below. */ 943ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; 944ccd979bdSMark Fasheh 945ccd979bdSMark Fasheh /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not 946ccd979bdSMark Fasheh * drop the trans_lock (which we want to hold until we 947ccd979bdSMark Fasheh * completely destroy the journal. */ 948ccd979bdSMark Fasheh if (osb->commit_task) { 949ccd979bdSMark Fasheh /* Wait for the commit thread */ 950ccd979bdSMark Fasheh mlog(0, "Waiting for ocfs2commit to exit....\n"); 951ccd979bdSMark Fasheh kthread_stop(osb->commit_task); 952ccd979bdSMark Fasheh osb->commit_task = NULL; 953ccd979bdSMark Fasheh } 954ccd979bdSMark Fasheh 955ccd979bdSMark Fasheh BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); 956ccd979bdSMark Fasheh 957c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 9582b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 9592b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 9602b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 961c271c5c2SSunil Mushran if (status < 0) 962c271c5c2SSunil Mushran mlog_errno(status); 963c271c5c2SSunil Mushran } 964c271c5c2SSunil Mushran 965c271c5c2SSunil Mushran if (status == 0) { 966c271c5c2SSunil Mushran /* 967c271c5c2SSunil Mushran * Do not toggle if flush was unsuccessful otherwise 968c271c5c2SSunil Mushran * will leave dirty metadata in a "clean" journal 969c271c5c2SSunil Mushran */ 970539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 0, 0); 971ccd979bdSMark Fasheh if (status < 0) 972ccd979bdSMark Fasheh mlog_errno(status); 973c271c5c2SSunil Mushran } 974ccd979bdSMark Fasheh 975ccd979bdSMark Fasheh /* Shutdown the kernel journal system */ 9762b4e30fbSJoel Becker jbd2_journal_destroy(journal->j_journal); 977ae0dff68SSunil Mushran journal->j_journal = NULL; 978ccd979bdSMark Fasheh 979ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 980ccd979bdSMark Fasheh 981ccd979bdSMark Fasheh /* unlock our journal */ 982e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 983ccd979bdSMark Fasheh 984ccd979bdSMark Fasheh brelse(journal->j_bh); 985ccd979bdSMark Fasheh journal->j_bh = NULL; 986ccd979bdSMark Fasheh 987ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 988ccd979bdSMark Fasheh 989ccd979bdSMark Fasheh // up_write(&journal->j_trans_barrier); 990ccd979bdSMark Fasheh done: 991ccd979bdSMark Fasheh if (inode) 992ccd979bdSMark Fasheh iput(inode); 993ccd979bdSMark Fasheh mlog_exit_void(); 994ccd979bdSMark Fasheh } 995ccd979bdSMark Fasheh 996ccd979bdSMark Fasheh static void ocfs2_clear_journal_error(struct super_block *sb, 997ccd979bdSMark Fasheh journal_t *journal, 998ccd979bdSMark Fasheh int slot) 999ccd979bdSMark Fasheh { 1000ccd979bdSMark Fasheh int olderr; 1001ccd979bdSMark Fasheh 10022b4e30fbSJoel Becker olderr = jbd2_journal_errno(journal); 1003ccd979bdSMark Fasheh if (olderr) { 1004ccd979bdSMark Fasheh mlog(ML_ERROR, "File system error %d recorded in " 1005ccd979bdSMark Fasheh "journal %u.\n", olderr, slot); 1006ccd979bdSMark Fasheh mlog(ML_ERROR, "File system on device %s needs checking.\n", 1007ccd979bdSMark Fasheh sb->s_id); 1008ccd979bdSMark Fasheh 10092b4e30fbSJoel Becker jbd2_journal_ack_err(journal); 10102b4e30fbSJoel Becker jbd2_journal_clear_err(journal); 1011ccd979bdSMark Fasheh } 1012ccd979bdSMark Fasheh } 1013ccd979bdSMark Fasheh 1014539d8264SSunil Mushran int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed) 1015ccd979bdSMark Fasheh { 1016ccd979bdSMark Fasheh int status = 0; 1017ccd979bdSMark Fasheh struct ocfs2_super *osb; 1018ccd979bdSMark Fasheh 1019ccd979bdSMark Fasheh mlog_entry_void(); 1020ccd979bdSMark Fasheh 1021b1f3550fSJulia Lawall BUG_ON(!journal); 1022ccd979bdSMark Fasheh 1023ccd979bdSMark Fasheh osb = journal->j_osb; 1024ccd979bdSMark Fasheh 10252b4e30fbSJoel Becker status = jbd2_journal_load(journal->j_journal); 1026ccd979bdSMark Fasheh if (status < 0) { 1027ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to load journal!\n"); 1028ccd979bdSMark Fasheh goto done; 1029ccd979bdSMark Fasheh } 1030ccd979bdSMark Fasheh 1031ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); 1032ccd979bdSMark Fasheh 1033539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 1, replayed); 1034ccd979bdSMark Fasheh if (status < 0) { 1035ccd979bdSMark Fasheh mlog_errno(status); 1036ccd979bdSMark Fasheh goto done; 1037ccd979bdSMark Fasheh } 1038ccd979bdSMark Fasheh 1039ccd979bdSMark Fasheh /* Launch the commit thread */ 1040c271c5c2SSunil Mushran if (!local) { 1041c271c5c2SSunil Mushran osb->commit_task = kthread_run(ocfs2_commit_thread, osb, 1042c271c5c2SSunil Mushran "ocfs2cmt"); 1043ccd979bdSMark Fasheh if (IS_ERR(osb->commit_task)) { 1044ccd979bdSMark Fasheh status = PTR_ERR(osb->commit_task); 1045ccd979bdSMark Fasheh osb->commit_task = NULL; 1046c271c5c2SSunil Mushran mlog(ML_ERROR, "unable to launch ocfs2commit thread, " 1047c271c5c2SSunil Mushran "error=%d", status); 1048ccd979bdSMark Fasheh goto done; 1049ccd979bdSMark Fasheh } 1050c271c5c2SSunil Mushran } else 1051c271c5c2SSunil Mushran osb->commit_task = NULL; 1052ccd979bdSMark Fasheh 1053ccd979bdSMark Fasheh done: 1054ccd979bdSMark Fasheh mlog_exit(status); 1055ccd979bdSMark Fasheh return status; 1056ccd979bdSMark Fasheh } 1057ccd979bdSMark Fasheh 1058ccd979bdSMark Fasheh 1059ccd979bdSMark Fasheh /* 'full' flag tells us whether we clear out all blocks or if we just 1060ccd979bdSMark Fasheh * mark the journal clean */ 1061ccd979bdSMark Fasheh int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) 1062ccd979bdSMark Fasheh { 1063ccd979bdSMark Fasheh int status; 1064ccd979bdSMark Fasheh 1065ccd979bdSMark Fasheh mlog_entry_void(); 1066ccd979bdSMark Fasheh 1067ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!journal); 1068ccd979bdSMark Fasheh 10692b4e30fbSJoel Becker status = jbd2_journal_wipe(journal->j_journal, full); 1070ccd979bdSMark Fasheh if (status < 0) { 1071ccd979bdSMark Fasheh mlog_errno(status); 1072ccd979bdSMark Fasheh goto bail; 1073ccd979bdSMark Fasheh } 1074ccd979bdSMark Fasheh 1075539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(journal->j_osb, 0, 0); 1076ccd979bdSMark Fasheh if (status < 0) 1077ccd979bdSMark Fasheh mlog_errno(status); 1078ccd979bdSMark Fasheh 1079ccd979bdSMark Fasheh bail: 1080ccd979bdSMark Fasheh mlog_exit(status); 1081ccd979bdSMark Fasheh return status; 1082ccd979bdSMark Fasheh } 1083ccd979bdSMark Fasheh 1084553abd04SJoel Becker static int ocfs2_recovery_completed(struct ocfs2_super *osb) 1085553abd04SJoel Becker { 1086553abd04SJoel Becker int empty; 1087553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 1088553abd04SJoel Becker 1089553abd04SJoel Becker spin_lock(&osb->osb_lock); 1090553abd04SJoel Becker empty = (rm->rm_used == 0); 1091553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1092553abd04SJoel Becker 1093553abd04SJoel Becker return empty; 1094553abd04SJoel Becker } 1095553abd04SJoel Becker 1096553abd04SJoel Becker void ocfs2_wait_for_recovery(struct ocfs2_super *osb) 1097553abd04SJoel Becker { 1098553abd04SJoel Becker wait_event(osb->recovery_event, ocfs2_recovery_completed(osb)); 1099553abd04SJoel Becker } 1100553abd04SJoel Becker 1101ccd979bdSMark Fasheh /* 1102ccd979bdSMark Fasheh * JBD Might read a cached version of another nodes journal file. We 1103ccd979bdSMark Fasheh * don't want this as this file changes often and we get no 1104ccd979bdSMark Fasheh * notification on those changes. The only way to be sure that we've 1105ccd979bdSMark Fasheh * got the most up to date version of those blocks then is to force 1106ccd979bdSMark Fasheh * read them off disk. Just searching through the buffer cache won't 1107ccd979bdSMark Fasheh * work as there may be pages backing this file which are still marked 1108ccd979bdSMark Fasheh * up to date. We know things can't change on this file underneath us 1109ccd979bdSMark Fasheh * as we have the lock by now :) 1110ccd979bdSMark Fasheh */ 1111ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode) 1112ccd979bdSMark Fasheh { 1113ccd979bdSMark Fasheh int status = 0; 11144f902c37SMark Fasheh int i; 11158110b073SMark Fasheh u64 v_blkno, p_blkno, p_blocks, num_blocks; 11164f902c37SMark Fasheh #define CONCURRENT_JOURNAL_FILL 32ULL 1117ccd979bdSMark Fasheh struct buffer_head *bhs[CONCURRENT_JOURNAL_FILL]; 1118ccd979bdSMark Fasheh 1119ccd979bdSMark Fasheh mlog_entry_void(); 1120ccd979bdSMark Fasheh 1121ccd979bdSMark Fasheh memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL); 1122ccd979bdSMark Fasheh 11238110b073SMark Fasheh num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, inode->i_size); 1124ccd979bdSMark Fasheh v_blkno = 0; 11258110b073SMark Fasheh while (v_blkno < num_blocks) { 1126ccd979bdSMark Fasheh status = ocfs2_extent_map_get_blocks(inode, v_blkno, 112749cb8d2dSMark Fasheh &p_blkno, &p_blocks, NULL); 1128ccd979bdSMark Fasheh if (status < 0) { 1129ccd979bdSMark Fasheh mlog_errno(status); 1130ccd979bdSMark Fasheh goto bail; 1131ccd979bdSMark Fasheh } 1132ccd979bdSMark Fasheh 1133ccd979bdSMark Fasheh if (p_blocks > CONCURRENT_JOURNAL_FILL) 1134ccd979bdSMark Fasheh p_blocks = CONCURRENT_JOURNAL_FILL; 1135ccd979bdSMark Fasheh 1136dd4a2c2bSMark Fasheh /* We are reading journal data which should not 1137dd4a2c2bSMark Fasheh * be put in the uptodate cache */ 1138da1e9098SJoel Becker status = ocfs2_read_blocks_sync(OCFS2_SB(inode->i_sb), 1139da1e9098SJoel Becker p_blkno, p_blocks, bhs); 1140ccd979bdSMark Fasheh if (status < 0) { 1141ccd979bdSMark Fasheh mlog_errno(status); 1142ccd979bdSMark Fasheh goto bail; 1143ccd979bdSMark Fasheh } 1144ccd979bdSMark Fasheh 1145ccd979bdSMark Fasheh for(i = 0; i < p_blocks; i++) { 1146ccd979bdSMark Fasheh brelse(bhs[i]); 1147ccd979bdSMark Fasheh bhs[i] = NULL; 1148ccd979bdSMark Fasheh } 1149ccd979bdSMark Fasheh 1150ccd979bdSMark Fasheh v_blkno += p_blocks; 1151ccd979bdSMark Fasheh } 1152ccd979bdSMark Fasheh 1153ccd979bdSMark Fasheh bail: 1154ccd979bdSMark Fasheh for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++) 1155ccd979bdSMark Fasheh brelse(bhs[i]); 1156ccd979bdSMark Fasheh mlog_exit(status); 1157ccd979bdSMark Fasheh return status; 1158ccd979bdSMark Fasheh } 1159ccd979bdSMark Fasheh 1160ccd979bdSMark Fasheh struct ocfs2_la_recovery_item { 1161ccd979bdSMark Fasheh struct list_head lri_list; 1162ccd979bdSMark Fasheh int lri_slot; 1163ccd979bdSMark Fasheh struct ocfs2_dinode *lri_la_dinode; 1164ccd979bdSMark Fasheh struct ocfs2_dinode *lri_tl_dinode; 11652205363dSJan Kara struct ocfs2_quota_recovery *lri_qrec; 1166ccd979bdSMark Fasheh }; 1167ccd979bdSMark Fasheh 1168ccd979bdSMark Fasheh /* Does the second half of the recovery process. By this point, the 1169ccd979bdSMark Fasheh * node is marked clean and can actually be considered recovered, 1170ccd979bdSMark Fasheh * hence it's no longer in the recovery map, but there's still some 1171ccd979bdSMark Fasheh * cleanup we can do which shouldn't happen within the recovery thread 1172ccd979bdSMark Fasheh * as locking in that context becomes very difficult if we are to take 1173ccd979bdSMark Fasheh * recovering nodes into account. 1174ccd979bdSMark Fasheh * 1175ccd979bdSMark Fasheh * NOTE: This function can and will sleep on recovery of other nodes 1176ccd979bdSMark Fasheh * during cluster locking, just like any other ocfs2 process. 1177ccd979bdSMark Fasheh */ 1178c4028958SDavid Howells void ocfs2_complete_recovery(struct work_struct *work) 1179ccd979bdSMark Fasheh { 1180ccd979bdSMark Fasheh int ret; 1181c4028958SDavid Howells struct ocfs2_journal *journal = 1182c4028958SDavid Howells container_of(work, struct ocfs2_journal, j_recovery_work); 1183c4028958SDavid Howells struct ocfs2_super *osb = journal->j_osb; 1184ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, *tl_dinode; 1185800deef3SChristoph Hellwig struct ocfs2_la_recovery_item *item, *n; 11862205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1187ccd979bdSMark Fasheh LIST_HEAD(tmp_la_list); 1188ccd979bdSMark Fasheh 1189ccd979bdSMark Fasheh mlog_entry_void(); 1190ccd979bdSMark Fasheh 1191ccd979bdSMark Fasheh mlog(0, "completing recovery from keventd\n"); 1192ccd979bdSMark Fasheh 1193ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1194ccd979bdSMark Fasheh list_splice_init(&journal->j_la_cleanups, &tmp_la_list); 1195ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1196ccd979bdSMark Fasheh 1197800deef3SChristoph Hellwig list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) { 1198ccd979bdSMark Fasheh list_del_init(&item->lri_list); 1199ccd979bdSMark Fasheh 1200ccd979bdSMark Fasheh mlog(0, "Complete recovery for slot %d\n", item->lri_slot); 1201ccd979bdSMark Fasheh 120219ece546SJan Kara ocfs2_wait_on_quotas(osb); 120319ece546SJan Kara 1204ccd979bdSMark Fasheh la_dinode = item->lri_la_dinode; 1205ccd979bdSMark Fasheh if (la_dinode) { 1206b0697053SMark Fasheh mlog(0, "Clean up local alloc %llu\n", 12071ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(la_dinode->i_blkno)); 1208ccd979bdSMark Fasheh 1209ccd979bdSMark Fasheh ret = ocfs2_complete_local_alloc_recovery(osb, 1210ccd979bdSMark Fasheh la_dinode); 1211ccd979bdSMark Fasheh if (ret < 0) 1212ccd979bdSMark Fasheh mlog_errno(ret); 1213ccd979bdSMark Fasheh 1214ccd979bdSMark Fasheh kfree(la_dinode); 1215ccd979bdSMark Fasheh } 1216ccd979bdSMark Fasheh 1217ccd979bdSMark Fasheh tl_dinode = item->lri_tl_dinode; 1218ccd979bdSMark Fasheh if (tl_dinode) { 1219b0697053SMark Fasheh mlog(0, "Clean up truncate log %llu\n", 12201ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(tl_dinode->i_blkno)); 1221ccd979bdSMark Fasheh 1222ccd979bdSMark Fasheh ret = ocfs2_complete_truncate_log_recovery(osb, 1223ccd979bdSMark Fasheh tl_dinode); 1224ccd979bdSMark Fasheh if (ret < 0) 1225ccd979bdSMark Fasheh mlog_errno(ret); 1226ccd979bdSMark Fasheh 1227ccd979bdSMark Fasheh kfree(tl_dinode); 1228ccd979bdSMark Fasheh } 1229ccd979bdSMark Fasheh 1230ccd979bdSMark Fasheh ret = ocfs2_recover_orphans(osb, item->lri_slot); 1231ccd979bdSMark Fasheh if (ret < 0) 1232ccd979bdSMark Fasheh mlog_errno(ret); 1233ccd979bdSMark Fasheh 12342205363dSJan Kara qrec = item->lri_qrec; 12352205363dSJan Kara if (qrec) { 12362205363dSJan Kara mlog(0, "Recovering quota files"); 12372205363dSJan Kara ret = ocfs2_finish_quota_recovery(osb, qrec, 12382205363dSJan Kara item->lri_slot); 12392205363dSJan Kara if (ret < 0) 12402205363dSJan Kara mlog_errno(ret); 12412205363dSJan Kara /* Recovery info is already freed now */ 12422205363dSJan Kara } 12432205363dSJan Kara 1244ccd979bdSMark Fasheh kfree(item); 1245ccd979bdSMark Fasheh } 1246ccd979bdSMark Fasheh 1247ccd979bdSMark Fasheh mlog(0, "Recovery completion\n"); 1248ccd979bdSMark Fasheh mlog_exit_void(); 1249ccd979bdSMark Fasheh } 1250ccd979bdSMark Fasheh 1251ccd979bdSMark Fasheh /* NOTE: This function always eats your references to la_dinode and 1252ccd979bdSMark Fasheh * tl_dinode, either manually on error, or by passing them to 1253ccd979bdSMark Fasheh * ocfs2_complete_recovery */ 1254ccd979bdSMark Fasheh static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 1255ccd979bdSMark Fasheh int slot_num, 1256ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, 12572205363dSJan Kara struct ocfs2_dinode *tl_dinode, 12582205363dSJan Kara struct ocfs2_quota_recovery *qrec) 1259ccd979bdSMark Fasheh { 1260ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 1261ccd979bdSMark Fasheh 1262afae00abSSunil Mushran item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS); 1263ccd979bdSMark Fasheh if (!item) { 1264ccd979bdSMark Fasheh /* Though we wish to avoid it, we are in fact safe in 1265ccd979bdSMark Fasheh * skipping local alloc cleanup as fsck.ocfs2 is more 1266ccd979bdSMark Fasheh * than capable of reclaiming unused space. */ 1267ccd979bdSMark Fasheh if (la_dinode) 1268ccd979bdSMark Fasheh kfree(la_dinode); 1269ccd979bdSMark Fasheh 1270ccd979bdSMark Fasheh if (tl_dinode) 1271ccd979bdSMark Fasheh kfree(tl_dinode); 1272ccd979bdSMark Fasheh 12732205363dSJan Kara if (qrec) 12742205363dSJan Kara ocfs2_free_quota_recovery(qrec); 12752205363dSJan Kara 1276ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 1277ccd979bdSMark Fasheh return; 1278ccd979bdSMark Fasheh } 1279ccd979bdSMark Fasheh 1280ccd979bdSMark Fasheh INIT_LIST_HEAD(&item->lri_list); 1281ccd979bdSMark Fasheh item->lri_la_dinode = la_dinode; 1282ccd979bdSMark Fasheh item->lri_slot = slot_num; 1283ccd979bdSMark Fasheh item->lri_tl_dinode = tl_dinode; 12842205363dSJan Kara item->lri_qrec = qrec; 1285ccd979bdSMark Fasheh 1286ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1287ccd979bdSMark Fasheh list_add_tail(&item->lri_list, &journal->j_la_cleanups); 1288ccd979bdSMark Fasheh queue_work(ocfs2_wq, &journal->j_recovery_work); 1289ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1290ccd979bdSMark Fasheh } 1291ccd979bdSMark Fasheh 1292ccd979bdSMark Fasheh /* Called by the mount code to queue recovery the last part of 12939140db04SSrinivas Eeda * recovery for it's own and offline slot(s). */ 1294ccd979bdSMark Fasheh void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) 1295ccd979bdSMark Fasheh { 1296ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 1297ccd979bdSMark Fasheh 12989140db04SSrinivas Eeda /* No need to queue up our truncate_log as regular cleanup will catch 12999140db04SSrinivas Eeda * that */ 13009140db04SSrinivas Eeda ocfs2_queue_recovery_completion(journal, osb->slot_num, 13019140db04SSrinivas Eeda osb->local_alloc_copy, NULL, NULL); 1302ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 1303ccd979bdSMark Fasheh 1304ccd979bdSMark Fasheh osb->local_alloc_copy = NULL; 1305ccd979bdSMark Fasheh osb->dirty = 0; 13069140db04SSrinivas Eeda 13079140db04SSrinivas Eeda /* queue to recover orphan slots for all offline slots */ 13089140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 13099140db04SSrinivas Eeda ocfs2_queue_replay_slots(osb); 13109140db04SSrinivas Eeda ocfs2_free_replay_slots(osb); 1311ccd979bdSMark Fasheh } 1312ccd979bdSMark Fasheh 13132205363dSJan Kara void ocfs2_complete_quota_recovery(struct ocfs2_super *osb) 13142205363dSJan Kara { 13152205363dSJan Kara if (osb->quota_rec) { 13162205363dSJan Kara ocfs2_queue_recovery_completion(osb->journal, 13172205363dSJan Kara osb->slot_num, 13182205363dSJan Kara NULL, 13192205363dSJan Kara NULL, 13202205363dSJan Kara osb->quota_rec); 13212205363dSJan Kara osb->quota_rec = NULL; 13222205363dSJan Kara } 13232205363dSJan Kara } 13242205363dSJan Kara 1325ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg) 1326ccd979bdSMark Fasheh { 13272205363dSJan Kara int status, node_num, slot_num; 1328ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 1329553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 13302205363dSJan Kara int *rm_quota = NULL; 13312205363dSJan Kara int rm_quota_used = 0, i; 13322205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1333ccd979bdSMark Fasheh 1334ccd979bdSMark Fasheh mlog_entry_void(); 1335ccd979bdSMark Fasheh 1336ccd979bdSMark Fasheh status = ocfs2_wait_on_mount(osb); 1337ccd979bdSMark Fasheh if (status < 0) { 1338ccd979bdSMark Fasheh goto bail; 1339ccd979bdSMark Fasheh } 1340ccd979bdSMark Fasheh 13412205363dSJan Kara rm_quota = kzalloc(osb->max_slots * sizeof(int), GFP_NOFS); 13422205363dSJan Kara if (!rm_quota) { 13432205363dSJan Kara status = -ENOMEM; 13442205363dSJan Kara goto bail; 13452205363dSJan Kara } 1346ccd979bdSMark Fasheh restart: 1347ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1348ccd979bdSMark Fasheh if (status < 0) { 1349ccd979bdSMark Fasheh mlog_errno(status); 1350ccd979bdSMark Fasheh goto bail; 1351ccd979bdSMark Fasheh } 1352ccd979bdSMark Fasheh 13539140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 13549140db04SSrinivas Eeda if (status < 0) 13559140db04SSrinivas Eeda mlog_errno(status); 13569140db04SSrinivas Eeda 13579140db04SSrinivas Eeda /* queue recovery for our own slot */ 13589140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, 13599140db04SSrinivas Eeda NULL, NULL); 13609140db04SSrinivas Eeda 1361553abd04SJoel Becker spin_lock(&osb->osb_lock); 1362553abd04SJoel Becker while (rm->rm_used) { 1363553abd04SJoel Becker /* It's always safe to remove entry zero, as we won't 1364553abd04SJoel Becker * clear it until ocfs2_recover_node() has succeeded. */ 1365553abd04SJoel Becker node_num = rm->rm_entries[0]; 1366553abd04SJoel Becker spin_unlock(&osb->osb_lock); 13672205363dSJan Kara mlog(0, "checking node %d\n", node_num); 13682205363dSJan Kara slot_num = ocfs2_node_num_to_slot(osb, node_num); 13692205363dSJan Kara if (slot_num == -ENOENT) { 13702205363dSJan Kara status = 0; 13712205363dSJan Kara mlog(0, "no slot for this node, so no recovery" 13722205363dSJan Kara "required.\n"); 13732205363dSJan Kara goto skip_recovery; 13742205363dSJan Kara } 13752205363dSJan Kara mlog(0, "node %d was using slot %d\n", node_num, slot_num); 1376ccd979bdSMark Fasheh 13772205363dSJan Kara /* It is a bit subtle with quota recovery. We cannot do it 13782205363dSJan Kara * immediately because we have to obtain cluster locks from 13792205363dSJan Kara * quota files and we also don't want to just skip it because 13802205363dSJan Kara * then quota usage would be out of sync until some node takes 13812205363dSJan Kara * the slot. So we remember which nodes need quota recovery 13822205363dSJan Kara * and when everything else is done, we recover quotas. */ 13832205363dSJan Kara for (i = 0; i < rm_quota_used && rm_quota[i] != slot_num; i++); 13842205363dSJan Kara if (i == rm_quota_used) 13852205363dSJan Kara rm_quota[rm_quota_used++] = slot_num; 13862205363dSJan Kara 13872205363dSJan Kara status = ocfs2_recover_node(osb, node_num, slot_num); 13882205363dSJan Kara skip_recovery: 1389553abd04SJoel Becker if (!status) { 1390553abd04SJoel Becker ocfs2_recovery_map_clear(osb, node_num); 1391553abd04SJoel Becker } else { 1392ccd979bdSMark Fasheh mlog(ML_ERROR, 1393ccd979bdSMark Fasheh "Error %d recovering node %d on device (%u,%u)!\n", 1394ccd979bdSMark Fasheh status, node_num, 1395ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1396ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume requires unmount.\n"); 1397ccd979bdSMark Fasheh } 1398ccd979bdSMark Fasheh 1399553abd04SJoel Becker spin_lock(&osb->osb_lock); 1400ccd979bdSMark Fasheh } 1401553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1402553abd04SJoel Becker mlog(0, "All nodes recovered\n"); 1403553abd04SJoel Becker 1404539d8264SSunil Mushran /* Refresh all journal recovery generations from disk */ 1405539d8264SSunil Mushran status = ocfs2_check_journals_nolocks(osb); 1406539d8264SSunil Mushran status = (status == -EROFS) ? 0 : status; 1407539d8264SSunil Mushran if (status < 0) 1408539d8264SSunil Mushran mlog_errno(status); 1409539d8264SSunil Mushran 14102205363dSJan Kara /* Now it is right time to recover quotas... We have to do this under 14112205363dSJan Kara * superblock lock so that noone can start using the slot (and crash) 14122205363dSJan Kara * before we recover it */ 14132205363dSJan Kara for (i = 0; i < rm_quota_used; i++) { 14142205363dSJan Kara qrec = ocfs2_begin_quota_recovery(osb, rm_quota[i]); 14152205363dSJan Kara if (IS_ERR(qrec)) { 14162205363dSJan Kara status = PTR_ERR(qrec); 14172205363dSJan Kara mlog_errno(status); 14182205363dSJan Kara continue; 14192205363dSJan Kara } 14202205363dSJan Kara ocfs2_queue_recovery_completion(osb->journal, rm_quota[i], 14212205363dSJan Kara NULL, NULL, qrec); 14222205363dSJan Kara } 14232205363dSJan Kara 1424ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1425ccd979bdSMark Fasheh 14269140db04SSrinivas Eeda /* queue recovery for offline slots */ 14279140db04SSrinivas Eeda ocfs2_queue_replay_slots(osb); 1428ccd979bdSMark Fasheh 1429ccd979bdSMark Fasheh bail: 1430c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1431553abd04SJoel Becker if (!status && !ocfs2_recovery_completed(osb)) { 1432c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1433ccd979bdSMark Fasheh goto restart; 1434ccd979bdSMark Fasheh } 1435ccd979bdSMark Fasheh 14369140db04SSrinivas Eeda ocfs2_free_replay_slots(osb); 1437ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1438ccd979bdSMark Fasheh mb(); /* sync with ocfs2_recovery_thread_running */ 1439ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1440ccd979bdSMark Fasheh 1441c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1442ccd979bdSMark Fasheh 14432205363dSJan Kara if (rm_quota) 14442205363dSJan Kara kfree(rm_quota); 14452205363dSJan Kara 1446ccd979bdSMark Fasheh mlog_exit(status); 1447ccd979bdSMark Fasheh /* no one is callint kthread_stop() for us so the kthread() api 1448ccd979bdSMark Fasheh * requires that we call do_exit(). And it isn't exported, but 1449ccd979bdSMark Fasheh * complete_and_exit() seems to be a minimal wrapper around it. */ 1450ccd979bdSMark Fasheh complete_and_exit(NULL, status); 1451ccd979bdSMark Fasheh return status; 1452ccd979bdSMark Fasheh } 1453ccd979bdSMark Fasheh 1454ccd979bdSMark Fasheh void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) 1455ccd979bdSMark Fasheh { 1456ccd979bdSMark Fasheh mlog_entry("(node_num=%d, osb->node_num = %d)\n", 1457ccd979bdSMark Fasheh node_num, osb->node_num); 1458ccd979bdSMark Fasheh 1459c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1460ccd979bdSMark Fasheh if (osb->disable_recovery) 1461ccd979bdSMark Fasheh goto out; 1462ccd979bdSMark Fasheh 1463ccd979bdSMark Fasheh /* People waiting on recovery will wait on 1464ccd979bdSMark Fasheh * the recovery map to empty. */ 1465553abd04SJoel Becker if (ocfs2_recovery_map_set(osb, node_num)) 1466553abd04SJoel Becker mlog(0, "node %d already in recovery map.\n", node_num); 1467ccd979bdSMark Fasheh 1468ccd979bdSMark Fasheh mlog(0, "starting recovery thread...\n"); 1469ccd979bdSMark Fasheh 1470ccd979bdSMark Fasheh if (osb->recovery_thread_task) 1471ccd979bdSMark Fasheh goto out; 1472ccd979bdSMark Fasheh 1473ccd979bdSMark Fasheh osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, 147478427043SMark Fasheh "ocfs2rec"); 1475ccd979bdSMark Fasheh if (IS_ERR(osb->recovery_thread_task)) { 1476ccd979bdSMark Fasheh mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); 1477ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1478ccd979bdSMark Fasheh } 1479ccd979bdSMark Fasheh 1480ccd979bdSMark Fasheh out: 1481c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1482ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1483ccd979bdSMark Fasheh 1484ccd979bdSMark Fasheh mlog_exit_void(); 1485ccd979bdSMark Fasheh } 1486ccd979bdSMark Fasheh 1487539d8264SSunil Mushran static int ocfs2_read_journal_inode(struct ocfs2_super *osb, 1488539d8264SSunil Mushran int slot_num, 1489539d8264SSunil Mushran struct buffer_head **bh, 1490539d8264SSunil Mushran struct inode **ret_inode) 1491539d8264SSunil Mushran { 1492539d8264SSunil Mushran int status = -EACCES; 1493539d8264SSunil Mushran struct inode *inode = NULL; 1494539d8264SSunil Mushran 1495539d8264SSunil Mushran BUG_ON(slot_num >= osb->max_slots); 1496539d8264SSunil Mushran 1497539d8264SSunil Mushran inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1498539d8264SSunil Mushran slot_num); 1499539d8264SSunil Mushran if (!inode || is_bad_inode(inode)) { 1500539d8264SSunil Mushran mlog_errno(status); 1501539d8264SSunil Mushran goto bail; 1502539d8264SSunil Mushran } 1503539d8264SSunil Mushran SET_INODE_JOURNAL(inode); 1504539d8264SSunil Mushran 1505b657c95cSJoel Becker status = ocfs2_read_inode_block_full(inode, bh, OCFS2_BH_IGNORE_CACHE); 1506539d8264SSunil Mushran if (status < 0) { 1507539d8264SSunil Mushran mlog_errno(status); 1508539d8264SSunil Mushran goto bail; 1509539d8264SSunil Mushran } 1510539d8264SSunil Mushran 1511539d8264SSunil Mushran status = 0; 1512539d8264SSunil Mushran 1513539d8264SSunil Mushran bail: 1514539d8264SSunil Mushran if (inode) { 1515539d8264SSunil Mushran if (status || !ret_inode) 1516539d8264SSunil Mushran iput(inode); 1517539d8264SSunil Mushran else 1518539d8264SSunil Mushran *ret_inode = inode; 1519539d8264SSunil Mushran } 1520539d8264SSunil Mushran return status; 1521539d8264SSunil Mushran } 1522539d8264SSunil Mushran 1523ccd979bdSMark Fasheh /* Does the actual journal replay and marks the journal inode as 1524ccd979bdSMark Fasheh * clean. Will only replay if the journal inode is marked dirty. */ 1525ccd979bdSMark Fasheh static int ocfs2_replay_journal(struct ocfs2_super *osb, 1526ccd979bdSMark Fasheh int node_num, 1527ccd979bdSMark Fasheh int slot_num) 1528ccd979bdSMark Fasheh { 1529ccd979bdSMark Fasheh int status; 1530ccd979bdSMark Fasheh int got_lock = 0; 1531ccd979bdSMark Fasheh unsigned int flags; 1532ccd979bdSMark Fasheh struct inode *inode = NULL; 1533ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 1534ccd979bdSMark Fasheh journal_t *journal = NULL; 1535ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1536539d8264SSunil Mushran u32 slot_reco_gen; 1537ccd979bdSMark Fasheh 1538539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, slot_num, &bh, &inode); 1539539d8264SSunil Mushran if (status) { 1540ccd979bdSMark Fasheh mlog_errno(status); 1541ccd979bdSMark Fasheh goto done; 1542ccd979bdSMark Fasheh } 1543539d8264SSunil Mushran 1544539d8264SSunil Mushran fe = (struct ocfs2_dinode *)bh->b_data; 1545539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1546539d8264SSunil Mushran brelse(bh); 1547539d8264SSunil Mushran bh = NULL; 1548539d8264SSunil Mushran 1549539d8264SSunil Mushran /* 1550539d8264SSunil Mushran * As the fs recovery is asynchronous, there is a small chance that 1551539d8264SSunil Mushran * another node mounted (and recovered) the slot before the recovery 1552539d8264SSunil Mushran * thread could get the lock. To handle that, we dirty read the journal 1553539d8264SSunil Mushran * inode for that slot to get the recovery generation. If it is 1554539d8264SSunil Mushran * different than what we expected, the slot has been recovered. 1555539d8264SSunil Mushran * If not, it needs recovery. 1556539d8264SSunil Mushran */ 1557539d8264SSunil Mushran if (osb->slot_recovery_generations[slot_num] != slot_reco_gen) { 1558539d8264SSunil Mushran mlog(0, "Slot %u already recovered (old/new=%u/%u)\n", slot_num, 1559539d8264SSunil Mushran osb->slot_recovery_generations[slot_num], slot_reco_gen); 1560539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1561539d8264SSunil Mushran status = -EBUSY; 1562ccd979bdSMark Fasheh goto done; 1563ccd979bdSMark Fasheh } 1564539d8264SSunil Mushran 1565539d8264SSunil Mushran /* Continue with recovery as the journal has not yet been recovered */ 1566ccd979bdSMark Fasheh 1567e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 1568ccd979bdSMark Fasheh if (status < 0) { 1569e63aecb6SMark Fasheh mlog(0, "status returned from ocfs2_inode_lock=%d\n", status); 1570ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 1571ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not lock journal!\n"); 1572ccd979bdSMark Fasheh goto done; 1573ccd979bdSMark Fasheh } 1574ccd979bdSMark Fasheh got_lock = 1; 1575ccd979bdSMark Fasheh 1576ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *) bh->b_data; 1577ccd979bdSMark Fasheh 1578ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1579539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1580ccd979bdSMark Fasheh 1581ccd979bdSMark Fasheh if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { 1582ccd979bdSMark Fasheh mlog(0, "No recovery required for node %d\n", node_num); 1583539d8264SSunil Mushran /* Refresh recovery generation for the slot */ 1584539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1585ccd979bdSMark Fasheh goto done; 1586ccd979bdSMark Fasheh } 1587ccd979bdSMark Fasheh 15889140db04SSrinivas Eeda /* we need to run complete recovery for offline orphan slots */ 15899140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 15909140db04SSrinivas Eeda 1591ccd979bdSMark Fasheh mlog(ML_NOTICE, "Recovering node %d from slot %d on device (%u,%u)\n", 1592ccd979bdSMark Fasheh node_num, slot_num, 1593ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1594ccd979bdSMark Fasheh 1595ccd979bdSMark Fasheh OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); 1596ccd979bdSMark Fasheh 1597ccd979bdSMark Fasheh status = ocfs2_force_read_journal(inode); 1598ccd979bdSMark Fasheh if (status < 0) { 1599ccd979bdSMark Fasheh mlog_errno(status); 1600ccd979bdSMark Fasheh goto done; 1601ccd979bdSMark Fasheh } 1602ccd979bdSMark Fasheh 1603ccd979bdSMark Fasheh mlog(0, "calling journal_init_inode\n"); 16042b4e30fbSJoel Becker journal = jbd2_journal_init_inode(inode); 1605ccd979bdSMark Fasheh if (journal == NULL) { 1606ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 1607ccd979bdSMark Fasheh status = -EIO; 1608ccd979bdSMark Fasheh goto done; 1609ccd979bdSMark Fasheh } 1610ccd979bdSMark Fasheh 16112b4e30fbSJoel Becker status = jbd2_journal_load(journal); 1612ccd979bdSMark Fasheh if (status < 0) { 1613ccd979bdSMark Fasheh mlog_errno(status); 1614ccd979bdSMark Fasheh if (!igrab(inode)) 1615ccd979bdSMark Fasheh BUG(); 16162b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1617ccd979bdSMark Fasheh goto done; 1618ccd979bdSMark Fasheh } 1619ccd979bdSMark Fasheh 1620ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal, slot_num); 1621ccd979bdSMark Fasheh 1622ccd979bdSMark Fasheh /* wipe the journal */ 1623ccd979bdSMark Fasheh mlog(0, "flushing the journal.\n"); 16242b4e30fbSJoel Becker jbd2_journal_lock_updates(journal); 16252b4e30fbSJoel Becker status = jbd2_journal_flush(journal); 16262b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal); 1627ccd979bdSMark Fasheh if (status < 0) 1628ccd979bdSMark Fasheh mlog_errno(status); 1629ccd979bdSMark Fasheh 1630ccd979bdSMark Fasheh /* This will mark the node clean */ 1631ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1632ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 1633ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 1634ccd979bdSMark Fasheh 1635539d8264SSunil Mushran /* Increment recovery generation to indicate successful recovery */ 1636539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 1637539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = 1638539d8264SSunil Mushran ocfs2_get_recovery_generation(fe); 1639539d8264SSunil Mushran 164013723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 1641ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, inode); 1642ccd979bdSMark Fasheh if (status < 0) 1643ccd979bdSMark Fasheh mlog_errno(status); 1644ccd979bdSMark Fasheh 1645ccd979bdSMark Fasheh if (!igrab(inode)) 1646ccd979bdSMark Fasheh BUG(); 1647ccd979bdSMark Fasheh 16482b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1649ccd979bdSMark Fasheh 1650ccd979bdSMark Fasheh done: 1651ccd979bdSMark Fasheh /* drop the lock on this nodes journal */ 1652ccd979bdSMark Fasheh if (got_lock) 1653e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1654ccd979bdSMark Fasheh 1655ccd979bdSMark Fasheh if (inode) 1656ccd979bdSMark Fasheh iput(inode); 1657ccd979bdSMark Fasheh 1658ccd979bdSMark Fasheh brelse(bh); 1659ccd979bdSMark Fasheh 1660ccd979bdSMark Fasheh mlog_exit(status); 1661ccd979bdSMark Fasheh return status; 1662ccd979bdSMark Fasheh } 1663ccd979bdSMark Fasheh 1664ccd979bdSMark Fasheh /* 1665ccd979bdSMark Fasheh * Do the most important parts of node recovery: 1666ccd979bdSMark Fasheh * - Replay it's journal 1667ccd979bdSMark Fasheh * - Stamp a clean local allocator file 1668ccd979bdSMark Fasheh * - Stamp a clean truncate log 1669ccd979bdSMark Fasheh * - Mark the node clean 1670ccd979bdSMark Fasheh * 1671ccd979bdSMark Fasheh * If this function completes without error, a node in OCFS2 can be 1672ccd979bdSMark Fasheh * said to have been safely recovered. As a result, failure during the 1673ccd979bdSMark Fasheh * second part of a nodes recovery process (local alloc recovery) is 1674ccd979bdSMark Fasheh * far less concerning. 1675ccd979bdSMark Fasheh */ 1676ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 16772205363dSJan Kara int node_num, int slot_num) 1678ccd979bdSMark Fasheh { 1679ccd979bdSMark Fasheh int status = 0; 1680ccd979bdSMark Fasheh struct ocfs2_dinode *la_copy = NULL; 1681ccd979bdSMark Fasheh struct ocfs2_dinode *tl_copy = NULL; 1682ccd979bdSMark Fasheh 16832205363dSJan Kara mlog_entry("(node_num=%d, slot_num=%d, osb->node_num = %d)\n", 16842205363dSJan Kara node_num, slot_num, osb->node_num); 1685ccd979bdSMark Fasheh 1686ccd979bdSMark Fasheh /* Should not ever be called to recover ourselves -- in that 1687ccd979bdSMark Fasheh * case we should've called ocfs2_journal_load instead. */ 1688ebdec83bSEric Sesterhenn / snakebyte BUG_ON(osb->node_num == node_num); 1689ccd979bdSMark Fasheh 1690ccd979bdSMark Fasheh status = ocfs2_replay_journal(osb, node_num, slot_num); 1691ccd979bdSMark Fasheh if (status < 0) { 1692539d8264SSunil Mushran if (status == -EBUSY) { 1693539d8264SSunil Mushran mlog(0, "Skipping recovery for slot %u (node %u) " 1694539d8264SSunil Mushran "as another node has recovered it\n", slot_num, 1695539d8264SSunil Mushran node_num); 1696539d8264SSunil Mushran status = 0; 1697539d8264SSunil Mushran goto done; 1698539d8264SSunil Mushran } 1699ccd979bdSMark Fasheh mlog_errno(status); 1700ccd979bdSMark Fasheh goto done; 1701ccd979bdSMark Fasheh } 1702ccd979bdSMark Fasheh 1703ccd979bdSMark Fasheh /* Stamp a clean local alloc file AFTER recovering the journal... */ 1704ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); 1705ccd979bdSMark Fasheh if (status < 0) { 1706ccd979bdSMark Fasheh mlog_errno(status); 1707ccd979bdSMark Fasheh goto done; 1708ccd979bdSMark Fasheh } 1709ccd979bdSMark Fasheh 1710ccd979bdSMark Fasheh /* An error from begin_truncate_log_recovery is not 1711ccd979bdSMark Fasheh * serious enough to warrant halting the rest of 1712ccd979bdSMark Fasheh * recovery. */ 1713ccd979bdSMark Fasheh status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); 1714ccd979bdSMark Fasheh if (status < 0) 1715ccd979bdSMark Fasheh mlog_errno(status); 1716ccd979bdSMark Fasheh 1717ccd979bdSMark Fasheh /* Likewise, this would be a strange but ultimately not so 1718ccd979bdSMark Fasheh * harmful place to get an error... */ 17198e8a4603SMark Fasheh status = ocfs2_clear_slot(osb, slot_num); 1720ccd979bdSMark Fasheh if (status < 0) 1721ccd979bdSMark Fasheh mlog_errno(status); 1722ccd979bdSMark Fasheh 1723ccd979bdSMark Fasheh /* This will kfree the memory pointed to by la_copy and tl_copy */ 1724ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, 17252205363dSJan Kara tl_copy, NULL); 1726ccd979bdSMark Fasheh 1727ccd979bdSMark Fasheh status = 0; 1728ccd979bdSMark Fasheh done: 1729ccd979bdSMark Fasheh 1730ccd979bdSMark Fasheh mlog_exit(status); 1731ccd979bdSMark Fasheh return status; 1732ccd979bdSMark Fasheh } 1733ccd979bdSMark Fasheh 1734ccd979bdSMark Fasheh /* Test node liveness by trylocking his journal. If we get the lock, 1735ccd979bdSMark Fasheh * we drop it here. Return 0 if we got the lock, -EAGAIN if node is 1736ccd979bdSMark Fasheh * still alive (we couldn't get the lock) and < 0 on error. */ 1737ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 1738ccd979bdSMark Fasheh int slot_num) 1739ccd979bdSMark Fasheh { 1740ccd979bdSMark Fasheh int status, flags; 1741ccd979bdSMark Fasheh struct inode *inode = NULL; 1742ccd979bdSMark Fasheh 1743ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1744ccd979bdSMark Fasheh slot_num); 1745ccd979bdSMark Fasheh if (inode == NULL) { 1746ccd979bdSMark Fasheh mlog(ML_ERROR, "access error\n"); 1747ccd979bdSMark Fasheh status = -EACCES; 1748ccd979bdSMark Fasheh goto bail; 1749ccd979bdSMark Fasheh } 1750ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1751ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 1752ccd979bdSMark Fasheh iput(inode); 1753ccd979bdSMark Fasheh inode = NULL; 1754ccd979bdSMark Fasheh status = -EACCES; 1755ccd979bdSMark Fasheh goto bail; 1756ccd979bdSMark Fasheh } 1757ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1758ccd979bdSMark Fasheh 1759ccd979bdSMark Fasheh flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; 1760e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, NULL, 1, flags); 1761ccd979bdSMark Fasheh if (status < 0) { 1762ccd979bdSMark Fasheh if (status != -EAGAIN) 1763ccd979bdSMark Fasheh mlog_errno(status); 1764ccd979bdSMark Fasheh goto bail; 1765ccd979bdSMark Fasheh } 1766ccd979bdSMark Fasheh 1767e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1768ccd979bdSMark Fasheh bail: 1769ccd979bdSMark Fasheh if (inode) 1770ccd979bdSMark Fasheh iput(inode); 1771ccd979bdSMark Fasheh 1772ccd979bdSMark Fasheh return status; 1773ccd979bdSMark Fasheh } 1774ccd979bdSMark Fasheh 1775ccd979bdSMark Fasheh /* Call this underneath ocfs2_super_lock. It also assumes that the 1776ccd979bdSMark Fasheh * slot info struct has been updated from disk. */ 1777ccd979bdSMark Fasheh int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) 1778ccd979bdSMark Fasheh { 1779d85b20e4SJoel Becker unsigned int node_num; 1780d85b20e4SJoel Becker int status, i; 1781a1af7d15SMark Fasheh u32 gen; 1782539d8264SSunil Mushran struct buffer_head *bh = NULL; 1783539d8264SSunil Mushran struct ocfs2_dinode *di; 1784ccd979bdSMark Fasheh 1785ccd979bdSMark Fasheh /* This is called with the super block cluster lock, so we 1786ccd979bdSMark Fasheh * know that the slot map can't change underneath us. */ 1787ccd979bdSMark Fasheh 1788d85b20e4SJoel Becker for (i = 0; i < osb->max_slots; i++) { 1789539d8264SSunil Mushran /* Read journal inode to get the recovery generation */ 1790539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, i, &bh, NULL); 1791539d8264SSunil Mushran if (status) { 1792539d8264SSunil Mushran mlog_errno(status); 1793539d8264SSunil Mushran goto bail; 1794539d8264SSunil Mushran } 1795539d8264SSunil Mushran di = (struct ocfs2_dinode *)bh->b_data; 1796a1af7d15SMark Fasheh gen = ocfs2_get_recovery_generation(di); 1797539d8264SSunil Mushran brelse(bh); 1798539d8264SSunil Mushran bh = NULL; 1799539d8264SSunil Mushran 1800a1af7d15SMark Fasheh spin_lock(&osb->osb_lock); 1801a1af7d15SMark Fasheh osb->slot_recovery_generations[i] = gen; 1802a1af7d15SMark Fasheh 1803539d8264SSunil Mushran mlog(0, "Slot %u recovery generation is %u\n", i, 1804539d8264SSunil Mushran osb->slot_recovery_generations[i]); 1805539d8264SSunil Mushran 1806a1af7d15SMark Fasheh if (i == osb->slot_num) { 1807a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1808ccd979bdSMark Fasheh continue; 1809a1af7d15SMark Fasheh } 1810d85b20e4SJoel Becker 1811d85b20e4SJoel Becker status = ocfs2_slot_to_node_num_locked(osb, i, &node_num); 1812a1af7d15SMark Fasheh if (status == -ENOENT) { 1813a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1814ccd979bdSMark Fasheh continue; 1815a1af7d15SMark Fasheh } 1816ccd979bdSMark Fasheh 1817a1af7d15SMark Fasheh if (__ocfs2_recovery_map_test(osb, node_num)) { 1818a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1819ccd979bdSMark Fasheh continue; 1820a1af7d15SMark Fasheh } 1821d85b20e4SJoel Becker spin_unlock(&osb->osb_lock); 1822ccd979bdSMark Fasheh 1823ccd979bdSMark Fasheh /* Ok, we have a slot occupied by another node which 1824ccd979bdSMark Fasheh * is not in the recovery map. We trylock his journal 1825ccd979bdSMark Fasheh * file here to test if he's alive. */ 1826ccd979bdSMark Fasheh status = ocfs2_trylock_journal(osb, i); 1827ccd979bdSMark Fasheh if (!status) { 1828ccd979bdSMark Fasheh /* Since we're called from mount, we know that 1829ccd979bdSMark Fasheh * the recovery thread can't race us on 1830ccd979bdSMark Fasheh * setting / checking the recovery bits. */ 1831ccd979bdSMark Fasheh ocfs2_recovery_thread(osb, node_num); 1832ccd979bdSMark Fasheh } else if ((status < 0) && (status != -EAGAIN)) { 1833ccd979bdSMark Fasheh mlog_errno(status); 1834ccd979bdSMark Fasheh goto bail; 1835ccd979bdSMark Fasheh } 1836ccd979bdSMark Fasheh } 1837ccd979bdSMark Fasheh 1838ccd979bdSMark Fasheh status = 0; 1839ccd979bdSMark Fasheh bail: 1840ccd979bdSMark Fasheh mlog_exit(status); 1841ccd979bdSMark Fasheh return status; 1842ccd979bdSMark Fasheh } 1843ccd979bdSMark Fasheh 18445eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv { 18455eae5b96SMark Fasheh struct inode *head; 18465eae5b96SMark Fasheh struct ocfs2_super *osb; 18475eae5b96SMark Fasheh }; 18485eae5b96SMark Fasheh 18495eae5b96SMark Fasheh static int ocfs2_orphan_filldir(void *priv, const char *name, int name_len, 18505eae5b96SMark Fasheh loff_t pos, u64 ino, unsigned type) 18515eae5b96SMark Fasheh { 18525eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv *p = priv; 18535eae5b96SMark Fasheh struct inode *iter; 18545eae5b96SMark Fasheh 18555eae5b96SMark Fasheh if (name_len == 1 && !strncmp(".", name, 1)) 18565eae5b96SMark Fasheh return 0; 18575eae5b96SMark Fasheh if (name_len == 2 && !strncmp("..", name, 2)) 18585eae5b96SMark Fasheh return 0; 18595eae5b96SMark Fasheh 18605eae5b96SMark Fasheh /* Skip bad inodes so that recovery can continue */ 18615eae5b96SMark Fasheh iter = ocfs2_iget(p->osb, ino, 18625fa0613eSJan Kara OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0); 18635eae5b96SMark Fasheh if (IS_ERR(iter)) 18645eae5b96SMark Fasheh return 0; 18655eae5b96SMark Fasheh 18665eae5b96SMark Fasheh mlog(0, "queue orphan %llu\n", 18675eae5b96SMark Fasheh (unsigned long long)OCFS2_I(iter)->ip_blkno); 18685eae5b96SMark Fasheh /* No locking is required for the next_orphan queue as there 18695eae5b96SMark Fasheh * is only ever a single process doing orphan recovery. */ 18705eae5b96SMark Fasheh OCFS2_I(iter)->ip_next_orphan = p->head; 18715eae5b96SMark Fasheh p->head = iter; 18725eae5b96SMark Fasheh 18735eae5b96SMark Fasheh return 0; 18745eae5b96SMark Fasheh } 18755eae5b96SMark Fasheh 1876b4df6ed8SMark Fasheh static int ocfs2_queue_orphans(struct ocfs2_super *osb, 1877b4df6ed8SMark Fasheh int slot, 1878b4df6ed8SMark Fasheh struct inode **head) 1879ccd979bdSMark Fasheh { 1880b4df6ed8SMark Fasheh int status; 1881ccd979bdSMark Fasheh struct inode *orphan_dir_inode = NULL; 18825eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv priv; 18835eae5b96SMark Fasheh loff_t pos = 0; 18845eae5b96SMark Fasheh 18855eae5b96SMark Fasheh priv.osb = osb; 18865eae5b96SMark Fasheh priv.head = *head; 1887ccd979bdSMark Fasheh 1888ccd979bdSMark Fasheh orphan_dir_inode = ocfs2_get_system_file_inode(osb, 1889ccd979bdSMark Fasheh ORPHAN_DIR_SYSTEM_INODE, 1890ccd979bdSMark Fasheh slot); 1891ccd979bdSMark Fasheh if (!orphan_dir_inode) { 1892ccd979bdSMark Fasheh status = -ENOENT; 1893ccd979bdSMark Fasheh mlog_errno(status); 1894b4df6ed8SMark Fasheh return status; 1895ccd979bdSMark Fasheh } 1896ccd979bdSMark Fasheh 18971b1dcc1bSJes Sorensen mutex_lock(&orphan_dir_inode->i_mutex); 1898e63aecb6SMark Fasheh status = ocfs2_inode_lock(orphan_dir_inode, NULL, 0); 1899ccd979bdSMark Fasheh if (status < 0) { 1900ccd979bdSMark Fasheh mlog_errno(status); 1901ccd979bdSMark Fasheh goto out; 1902ccd979bdSMark Fasheh } 1903ccd979bdSMark Fasheh 19045eae5b96SMark Fasheh status = ocfs2_dir_foreach(orphan_dir_inode, &pos, &priv, 19055eae5b96SMark Fasheh ocfs2_orphan_filldir); 19065eae5b96SMark Fasheh if (status) { 1907ccd979bdSMark Fasheh mlog_errno(status); 1908a86370fbSMark Fasheh goto out_cluster; 1909ccd979bdSMark Fasheh } 1910ccd979bdSMark Fasheh 19115eae5b96SMark Fasheh *head = priv.head; 1912ccd979bdSMark Fasheh 1913a86370fbSMark Fasheh out_cluster: 1914e63aecb6SMark Fasheh ocfs2_inode_unlock(orphan_dir_inode, 0); 1915b4df6ed8SMark Fasheh out: 1916b4df6ed8SMark Fasheh mutex_unlock(&orphan_dir_inode->i_mutex); 1917ccd979bdSMark Fasheh iput(orphan_dir_inode); 1918b4df6ed8SMark Fasheh return status; 1919b4df6ed8SMark Fasheh } 1920b4df6ed8SMark Fasheh 1921b4df6ed8SMark Fasheh static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb, 1922b4df6ed8SMark Fasheh int slot) 1923b4df6ed8SMark Fasheh { 1924b4df6ed8SMark Fasheh int ret; 1925b4df6ed8SMark Fasheh 1926b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1927b4df6ed8SMark Fasheh ret = !osb->osb_orphan_wipes[slot]; 1928b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1929b4df6ed8SMark Fasheh return ret; 1930b4df6ed8SMark Fasheh } 1931b4df6ed8SMark Fasheh 1932b4df6ed8SMark Fasheh static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb, 1933b4df6ed8SMark Fasheh int slot) 1934b4df6ed8SMark Fasheh { 1935b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1936b4df6ed8SMark Fasheh /* Mark ourselves such that new processes in delete_inode() 1937b4df6ed8SMark Fasheh * know to quit early. */ 1938b4df6ed8SMark Fasheh ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 1939b4df6ed8SMark Fasheh while (osb->osb_orphan_wipes[slot]) { 1940b4df6ed8SMark Fasheh /* If any processes are already in the middle of an 1941b4df6ed8SMark Fasheh * orphan wipe on this dir, then we need to wait for 1942b4df6ed8SMark Fasheh * them. */ 1943b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1944b4df6ed8SMark Fasheh wait_event_interruptible(osb->osb_wipe_event, 1945b4df6ed8SMark Fasheh ocfs2_orphan_recovery_can_continue(osb, slot)); 1946b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1947b4df6ed8SMark Fasheh } 1948b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1949b4df6ed8SMark Fasheh } 1950b4df6ed8SMark Fasheh 1951b4df6ed8SMark Fasheh static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb, 1952b4df6ed8SMark Fasheh int slot) 1953b4df6ed8SMark Fasheh { 1954b4df6ed8SMark Fasheh ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 1955b4df6ed8SMark Fasheh } 1956b4df6ed8SMark Fasheh 1957b4df6ed8SMark Fasheh /* 1958b4df6ed8SMark Fasheh * Orphan recovery. Each mounted node has it's own orphan dir which we 1959b4df6ed8SMark Fasheh * must run during recovery. Our strategy here is to build a list of 1960b4df6ed8SMark Fasheh * the inodes in the orphan dir and iget/iput them. The VFS does 1961b4df6ed8SMark Fasheh * (most) of the rest of the work. 1962b4df6ed8SMark Fasheh * 1963b4df6ed8SMark Fasheh * Orphan recovery can happen at any time, not just mount so we have a 1964b4df6ed8SMark Fasheh * couple of extra considerations. 1965b4df6ed8SMark Fasheh * 1966b4df6ed8SMark Fasheh * - We grab as many inodes as we can under the orphan dir lock - 1967b4df6ed8SMark Fasheh * doing iget() outside the orphan dir risks getting a reference on 1968b4df6ed8SMark Fasheh * an invalid inode. 1969b4df6ed8SMark Fasheh * - We must be sure not to deadlock with other processes on the 1970b4df6ed8SMark Fasheh * system wanting to run delete_inode(). This can happen when they go 1971b4df6ed8SMark Fasheh * to lock the orphan dir and the orphan recovery process attempts to 1972b4df6ed8SMark Fasheh * iget() inside the orphan dir lock. This can be avoided by 1973b4df6ed8SMark Fasheh * advertising our state to ocfs2_delete_inode(). 1974b4df6ed8SMark Fasheh */ 1975b4df6ed8SMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 1976b4df6ed8SMark Fasheh int slot) 1977b4df6ed8SMark Fasheh { 1978b4df6ed8SMark Fasheh int ret = 0; 1979b4df6ed8SMark Fasheh struct inode *inode = NULL; 1980b4df6ed8SMark Fasheh struct inode *iter; 1981b4df6ed8SMark Fasheh struct ocfs2_inode_info *oi; 1982b4df6ed8SMark Fasheh 1983b4df6ed8SMark Fasheh mlog(0, "Recover inodes from orphan dir in slot %d\n", slot); 1984b4df6ed8SMark Fasheh 1985b4df6ed8SMark Fasheh ocfs2_mark_recovering_orphan_dir(osb, slot); 1986b4df6ed8SMark Fasheh ret = ocfs2_queue_orphans(osb, slot, &inode); 1987b4df6ed8SMark Fasheh ocfs2_clear_recovering_orphan_dir(osb, slot); 1988b4df6ed8SMark Fasheh 1989b4df6ed8SMark Fasheh /* Error here should be noted, but we want to continue with as 1990b4df6ed8SMark Fasheh * many queued inodes as we've got. */ 1991b4df6ed8SMark Fasheh if (ret) 1992b4df6ed8SMark Fasheh mlog_errno(ret); 1993ccd979bdSMark Fasheh 1994ccd979bdSMark Fasheh while (inode) { 1995ccd979bdSMark Fasheh oi = OCFS2_I(inode); 1996b0697053SMark Fasheh mlog(0, "iput orphan %llu\n", (unsigned long long)oi->ip_blkno); 1997ccd979bdSMark Fasheh 1998ccd979bdSMark Fasheh iter = oi->ip_next_orphan; 1999ccd979bdSMark Fasheh 2000ccd979bdSMark Fasheh spin_lock(&oi->ip_lock); 200134d024f8SMark Fasheh /* The remote delete code may have set these on the 200234d024f8SMark Fasheh * assumption that the other node would wipe them 200334d024f8SMark Fasheh * successfully. If they are still in the node's 200434d024f8SMark Fasheh * orphan dir, we need to reset that state. */ 2005ccd979bdSMark Fasheh oi->ip_flags &= ~(OCFS2_INODE_DELETED|OCFS2_INODE_SKIP_DELETE); 2006ccd979bdSMark Fasheh 2007ccd979bdSMark Fasheh /* Set the proper information to get us going into 2008ccd979bdSMark Fasheh * ocfs2_delete_inode. */ 2009ccd979bdSMark Fasheh oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; 2010ccd979bdSMark Fasheh spin_unlock(&oi->ip_lock); 2011ccd979bdSMark Fasheh 2012ccd979bdSMark Fasheh iput(inode); 2013ccd979bdSMark Fasheh 2014ccd979bdSMark Fasheh inode = iter; 2015ccd979bdSMark Fasheh } 2016ccd979bdSMark Fasheh 2017b4df6ed8SMark Fasheh return ret; 2018ccd979bdSMark Fasheh } 2019ccd979bdSMark Fasheh 202019ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota) 2021ccd979bdSMark Fasheh { 2022ccd979bdSMark Fasheh /* This check is good because ocfs2 will wait on our recovery 2023ccd979bdSMark Fasheh * thread before changing it to something other than MOUNTED 2024ccd979bdSMark Fasheh * or DISABLED. */ 2025ccd979bdSMark Fasheh wait_event(osb->osb_mount_event, 202619ece546SJan Kara (!quota && atomic_read(&osb->vol_state) == VOLUME_MOUNTED) || 202719ece546SJan Kara atomic_read(&osb->vol_state) == VOLUME_MOUNTED_QUOTAS || 2028ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_DISABLED); 2029ccd979bdSMark Fasheh 2030ccd979bdSMark Fasheh /* If there's an error on mount, then we may never get to the 2031ccd979bdSMark Fasheh * MOUNTED flag, but this is set right before 2032ccd979bdSMark Fasheh * dismount_volume() so we can trust it. */ 2033ccd979bdSMark Fasheh if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) { 2034ccd979bdSMark Fasheh mlog(0, "mount error, exiting!\n"); 2035ccd979bdSMark Fasheh return -EBUSY; 2036ccd979bdSMark Fasheh } 2037ccd979bdSMark Fasheh 2038ccd979bdSMark Fasheh return 0; 2039ccd979bdSMark Fasheh } 2040ccd979bdSMark Fasheh 2041ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg) 2042ccd979bdSMark Fasheh { 2043ccd979bdSMark Fasheh int status; 2044ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 2045ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 2046ccd979bdSMark Fasheh 2047ccd979bdSMark Fasheh /* we can trust j_num_trans here because _should_stop() is only set in 2048ccd979bdSMark Fasheh * shutdown and nobody other than ourselves should be able to start 2049ccd979bdSMark Fasheh * transactions. committing on shutdown might take a few iterations 2050ccd979bdSMark Fasheh * as final transactions put deleted inodes on the list */ 2051ccd979bdSMark Fasheh while (!(kthread_should_stop() && 2052ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) == 0)) { 2053ccd979bdSMark Fasheh 2054745ae8baSMark Fasheh wait_event_interruptible(osb->checkpoint_event, 2055ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) 2056745ae8baSMark Fasheh || kthread_should_stop()); 2057ccd979bdSMark Fasheh 2058ccd979bdSMark Fasheh status = ocfs2_commit_cache(osb); 2059ccd979bdSMark Fasheh if (status < 0) 2060ccd979bdSMark Fasheh mlog_errno(status); 2061ccd979bdSMark Fasheh 2062ccd979bdSMark Fasheh if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ 2063ccd979bdSMark Fasheh mlog(ML_KTHREAD, 2064ccd979bdSMark Fasheh "commit_thread: %u transactions pending on " 2065ccd979bdSMark Fasheh "shutdown\n", 2066ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans)); 2067ccd979bdSMark Fasheh } 2068ccd979bdSMark Fasheh } 2069ccd979bdSMark Fasheh 2070ccd979bdSMark Fasheh return 0; 2071ccd979bdSMark Fasheh } 2072ccd979bdSMark Fasheh 2073539d8264SSunil Mushran /* Reads all the journal inodes without taking any cluster locks. Used 2074539d8264SSunil Mushran * for hard readonly access to determine whether any journal requires 2075539d8264SSunil Mushran * recovery. Also used to refresh the recovery generation numbers after 2076539d8264SSunil Mushran * a journal has been recovered by another node. 2077539d8264SSunil Mushran */ 2078ccd979bdSMark Fasheh int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) 2079ccd979bdSMark Fasheh { 2080ccd979bdSMark Fasheh int ret = 0; 2081ccd979bdSMark Fasheh unsigned int slot; 2082539d8264SSunil Mushran struct buffer_head *di_bh = NULL; 2083ccd979bdSMark Fasheh struct ocfs2_dinode *di; 2084539d8264SSunil Mushran int journal_dirty = 0; 2085ccd979bdSMark Fasheh 2086ccd979bdSMark Fasheh for(slot = 0; slot < osb->max_slots; slot++) { 2087539d8264SSunil Mushran ret = ocfs2_read_journal_inode(osb, slot, &di_bh, NULL); 2088539d8264SSunil Mushran if (ret) { 2089ccd979bdSMark Fasheh mlog_errno(ret); 2090ccd979bdSMark Fasheh goto out; 2091ccd979bdSMark Fasheh } 2092ccd979bdSMark Fasheh 2093ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) di_bh->b_data; 2094ccd979bdSMark Fasheh 2095539d8264SSunil Mushran osb->slot_recovery_generations[slot] = 2096539d8264SSunil Mushran ocfs2_get_recovery_generation(di); 2097539d8264SSunil Mushran 2098ccd979bdSMark Fasheh if (le32_to_cpu(di->id1.journal1.ij_flags) & 2099ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL) 2100539d8264SSunil Mushran journal_dirty = 1; 2101ccd979bdSMark Fasheh 2102ccd979bdSMark Fasheh brelse(di_bh); 2103539d8264SSunil Mushran di_bh = NULL; 2104ccd979bdSMark Fasheh } 2105ccd979bdSMark Fasheh 2106ccd979bdSMark Fasheh out: 2107539d8264SSunil Mushran if (journal_dirty) 2108539d8264SSunil Mushran ret = -EROFS; 2109ccd979bdSMark Fasheh return ret; 2110ccd979bdSMark Fasheh } 2111