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> 3183273932SSrinivas Eeda #include <linux/time.h> 3283273932SSrinivas Eeda #include <linux/random.h> 33ccd979bdSMark Fasheh 34ccd979bdSMark Fasheh #include <cluster/masklog.h> 35ccd979bdSMark Fasheh 36ccd979bdSMark Fasheh #include "ocfs2.h" 37ccd979bdSMark Fasheh 38ccd979bdSMark Fasheh #include "alloc.h" 3950655ae9SJoel Becker #include "blockcheck.h" 40316f4b9fSMark Fasheh #include "dir.h" 41ccd979bdSMark Fasheh #include "dlmglue.h" 42ccd979bdSMark Fasheh #include "extent_map.h" 43ccd979bdSMark Fasheh #include "heartbeat.h" 44ccd979bdSMark Fasheh #include "inode.h" 45ccd979bdSMark Fasheh #include "journal.h" 46ccd979bdSMark Fasheh #include "localalloc.h" 47ccd979bdSMark Fasheh #include "slot_map.h" 48ccd979bdSMark Fasheh #include "super.h" 49ccd979bdSMark Fasheh #include "sysfile.h" 500cf2f763SJoel Becker #include "uptodate.h" 512205363dSJan Kara #include "quota.h" 52ccd979bdSMark Fasheh 53ccd979bdSMark Fasheh #include "buffer_head_io.h" 54b4107950STao Ma #include "ocfs2_trace.h" 55ccd979bdSMark Fasheh 5634af946aSIngo Molnar DEFINE_SPINLOCK(trans_inc_lock); 57ccd979bdSMark Fasheh 5883273932SSrinivas Eeda #define ORPHAN_SCAN_SCHEDULE_TIMEOUT 300000 5983273932SSrinivas Eeda 60ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode); 61ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 622205363dSJan Kara int node_num, int slot_num); 63ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg); 64ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb); 6519ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota); 66ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 67539d8264SSunil Mushran int dirty, int replayed); 68ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 69ccd979bdSMark Fasheh int slot_num); 70ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 71ccd979bdSMark Fasheh int slot); 72ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg); 739140db04SSrinivas Eeda static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 749140db04SSrinivas Eeda int slot_num, 759140db04SSrinivas Eeda struct ocfs2_dinode *la_dinode, 769140db04SSrinivas Eeda struct ocfs2_dinode *tl_dinode, 779140db04SSrinivas Eeda struct ocfs2_quota_recovery *qrec); 78ccd979bdSMark Fasheh 7919ece546SJan Kara static inline int ocfs2_wait_on_mount(struct ocfs2_super *osb) 8019ece546SJan Kara { 8119ece546SJan Kara return __ocfs2_wait_on_mount(osb, 0); 8219ece546SJan Kara } 8319ece546SJan Kara 8419ece546SJan Kara static inline int ocfs2_wait_on_quotas(struct ocfs2_super *osb) 8519ece546SJan Kara { 8619ece546SJan Kara return __ocfs2_wait_on_mount(osb, 1); 8719ece546SJan Kara } 8819ece546SJan Kara 899140db04SSrinivas Eeda /* 909140db04SSrinivas Eeda * This replay_map is to track online/offline slots, so we could recover 919140db04SSrinivas Eeda * offline slots during recovery and mount 929140db04SSrinivas Eeda */ 939140db04SSrinivas Eeda 949140db04SSrinivas Eeda enum ocfs2_replay_state { 959140db04SSrinivas Eeda REPLAY_UNNEEDED = 0, /* Replay is not needed, so ignore this map */ 969140db04SSrinivas Eeda REPLAY_NEEDED, /* Replay slots marked in rm_replay_slots */ 979140db04SSrinivas Eeda REPLAY_DONE /* Replay was already queued */ 989140db04SSrinivas Eeda }; 999140db04SSrinivas Eeda 1009140db04SSrinivas Eeda struct ocfs2_replay_map { 1019140db04SSrinivas Eeda unsigned int rm_slots; 1029140db04SSrinivas Eeda enum ocfs2_replay_state rm_state; 1039140db04SSrinivas Eeda unsigned char rm_replay_slots[0]; 1049140db04SSrinivas Eeda }; 1059140db04SSrinivas Eeda 1069140db04SSrinivas Eeda void ocfs2_replay_map_set_state(struct ocfs2_super *osb, int state) 1079140db04SSrinivas Eeda { 1089140db04SSrinivas Eeda if (!osb->replay_map) 1099140db04SSrinivas Eeda return; 1109140db04SSrinivas Eeda 1119140db04SSrinivas Eeda /* If we've already queued the replay, we don't have any more to do */ 1129140db04SSrinivas Eeda if (osb->replay_map->rm_state == REPLAY_DONE) 1139140db04SSrinivas Eeda return; 1149140db04SSrinivas Eeda 1159140db04SSrinivas Eeda osb->replay_map->rm_state = state; 1169140db04SSrinivas Eeda } 1179140db04SSrinivas Eeda 1189140db04SSrinivas Eeda int ocfs2_compute_replay_slots(struct ocfs2_super *osb) 1199140db04SSrinivas Eeda { 1209140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map; 1219140db04SSrinivas Eeda int i, node_num; 1229140db04SSrinivas Eeda 1239140db04SSrinivas Eeda /* If replay map is already set, we don't do it again */ 1249140db04SSrinivas Eeda if (osb->replay_map) 1259140db04SSrinivas Eeda return 0; 1269140db04SSrinivas Eeda 1279140db04SSrinivas Eeda replay_map = kzalloc(sizeof(struct ocfs2_replay_map) + 1289140db04SSrinivas Eeda (osb->max_slots * sizeof(char)), GFP_KERNEL); 1299140db04SSrinivas Eeda 1309140db04SSrinivas Eeda if (!replay_map) { 1319140db04SSrinivas Eeda mlog_errno(-ENOMEM); 1329140db04SSrinivas Eeda return -ENOMEM; 1339140db04SSrinivas Eeda } 1349140db04SSrinivas Eeda 1359140db04SSrinivas Eeda spin_lock(&osb->osb_lock); 1369140db04SSrinivas Eeda 1379140db04SSrinivas Eeda replay_map->rm_slots = osb->max_slots; 1389140db04SSrinivas Eeda replay_map->rm_state = REPLAY_UNNEEDED; 1399140db04SSrinivas Eeda 1409140db04SSrinivas Eeda /* set rm_replay_slots for offline slot(s) */ 1419140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) { 1429140db04SSrinivas Eeda if (ocfs2_slot_to_node_num_locked(osb, i, &node_num) == -ENOENT) 1439140db04SSrinivas Eeda replay_map->rm_replay_slots[i] = 1; 1449140db04SSrinivas Eeda } 1459140db04SSrinivas Eeda 1469140db04SSrinivas Eeda osb->replay_map = replay_map; 1479140db04SSrinivas Eeda spin_unlock(&osb->osb_lock); 1489140db04SSrinivas Eeda return 0; 1499140db04SSrinivas Eeda } 1509140db04SSrinivas Eeda 1519140db04SSrinivas Eeda void ocfs2_queue_replay_slots(struct ocfs2_super *osb) 1529140db04SSrinivas Eeda { 1539140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1549140db04SSrinivas Eeda int i; 1559140db04SSrinivas Eeda 1569140db04SSrinivas Eeda if (!replay_map) 1579140db04SSrinivas Eeda return; 1589140db04SSrinivas Eeda 1599140db04SSrinivas Eeda if (replay_map->rm_state != REPLAY_NEEDED) 1609140db04SSrinivas Eeda return; 1619140db04SSrinivas Eeda 1629140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) 1639140db04SSrinivas Eeda if (replay_map->rm_replay_slots[i]) 1649140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, i, NULL, 1659140db04SSrinivas Eeda NULL, NULL); 1669140db04SSrinivas Eeda replay_map->rm_state = REPLAY_DONE; 1679140db04SSrinivas Eeda } 1689140db04SSrinivas Eeda 1699140db04SSrinivas Eeda void ocfs2_free_replay_slots(struct ocfs2_super *osb) 1709140db04SSrinivas Eeda { 1719140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1729140db04SSrinivas Eeda 1739140db04SSrinivas Eeda if (!osb->replay_map) 1749140db04SSrinivas Eeda return; 1759140db04SSrinivas Eeda 1769140db04SSrinivas Eeda kfree(replay_map); 1779140db04SSrinivas Eeda osb->replay_map = NULL; 1789140db04SSrinivas Eeda } 1799140db04SSrinivas Eeda 180553abd04SJoel Becker int ocfs2_recovery_init(struct ocfs2_super *osb) 181553abd04SJoel Becker { 182553abd04SJoel Becker struct ocfs2_recovery_map *rm; 183553abd04SJoel Becker 184553abd04SJoel Becker mutex_init(&osb->recovery_lock); 185553abd04SJoel Becker osb->disable_recovery = 0; 186553abd04SJoel Becker osb->recovery_thread_task = NULL; 187553abd04SJoel Becker init_waitqueue_head(&osb->recovery_event); 188553abd04SJoel Becker 189553abd04SJoel Becker rm = kzalloc(sizeof(struct ocfs2_recovery_map) + 190553abd04SJoel Becker osb->max_slots * sizeof(unsigned int), 191553abd04SJoel Becker GFP_KERNEL); 192553abd04SJoel Becker if (!rm) { 193553abd04SJoel Becker mlog_errno(-ENOMEM); 194553abd04SJoel Becker return -ENOMEM; 195553abd04SJoel Becker } 196553abd04SJoel Becker 197553abd04SJoel Becker rm->rm_entries = (unsigned int *)((char *)rm + 198553abd04SJoel Becker sizeof(struct ocfs2_recovery_map)); 199553abd04SJoel Becker osb->recovery_map = rm; 200553abd04SJoel Becker 201553abd04SJoel Becker return 0; 202553abd04SJoel Becker } 203553abd04SJoel Becker 204553abd04SJoel Becker /* we can't grab the goofy sem lock from inside wait_event, so we use 205553abd04SJoel Becker * memory barriers to make sure that we'll see the null task before 206553abd04SJoel Becker * being woken up */ 207553abd04SJoel Becker static int ocfs2_recovery_thread_running(struct ocfs2_super *osb) 208553abd04SJoel Becker { 209553abd04SJoel Becker mb(); 210553abd04SJoel Becker return osb->recovery_thread_task != NULL; 211553abd04SJoel Becker } 212553abd04SJoel Becker 213553abd04SJoel Becker void ocfs2_recovery_exit(struct ocfs2_super *osb) 214553abd04SJoel Becker { 215553abd04SJoel Becker struct ocfs2_recovery_map *rm; 216553abd04SJoel Becker 217553abd04SJoel Becker /* disable any new recovery threads and wait for any currently 218553abd04SJoel Becker * running ones to exit. Do this before setting the vol_state. */ 219553abd04SJoel Becker mutex_lock(&osb->recovery_lock); 220553abd04SJoel Becker osb->disable_recovery = 1; 221553abd04SJoel Becker mutex_unlock(&osb->recovery_lock); 222553abd04SJoel Becker wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); 223553abd04SJoel Becker 224553abd04SJoel Becker /* At this point, we know that no more recovery threads can be 225553abd04SJoel Becker * launched, so wait for any recovery completion work to 226553abd04SJoel Becker * complete. */ 227553abd04SJoel Becker flush_workqueue(ocfs2_wq); 228553abd04SJoel Becker 229553abd04SJoel Becker /* 230553abd04SJoel Becker * Now that recovery is shut down, and the osb is about to be 231553abd04SJoel Becker * freed, the osb_lock is not taken here. 232553abd04SJoel Becker */ 233553abd04SJoel Becker rm = osb->recovery_map; 234553abd04SJoel Becker /* XXX: Should we bug if there are dirty entries? */ 235553abd04SJoel Becker 236553abd04SJoel Becker kfree(rm); 237553abd04SJoel Becker } 238553abd04SJoel Becker 239553abd04SJoel Becker static int __ocfs2_recovery_map_test(struct ocfs2_super *osb, 240553abd04SJoel Becker unsigned int node_num) 241553abd04SJoel Becker { 242553abd04SJoel Becker int i; 243553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 244553abd04SJoel Becker 245553abd04SJoel Becker assert_spin_locked(&osb->osb_lock); 246553abd04SJoel Becker 247553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 248553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 249553abd04SJoel Becker return 1; 250553abd04SJoel Becker } 251553abd04SJoel Becker 252553abd04SJoel Becker return 0; 253553abd04SJoel Becker } 254553abd04SJoel Becker 255553abd04SJoel Becker /* Behaves like test-and-set. Returns the previous value */ 256553abd04SJoel Becker static int ocfs2_recovery_map_set(struct ocfs2_super *osb, 257553abd04SJoel Becker unsigned int node_num) 258553abd04SJoel Becker { 259553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 260553abd04SJoel Becker 261553abd04SJoel Becker spin_lock(&osb->osb_lock); 262553abd04SJoel Becker if (__ocfs2_recovery_map_test(osb, node_num)) { 263553abd04SJoel Becker spin_unlock(&osb->osb_lock); 264553abd04SJoel Becker return 1; 265553abd04SJoel Becker } 266553abd04SJoel Becker 267553abd04SJoel Becker /* XXX: Can this be exploited? Not from o2dlm... */ 268553abd04SJoel Becker BUG_ON(rm->rm_used >= osb->max_slots); 269553abd04SJoel Becker 270553abd04SJoel Becker rm->rm_entries[rm->rm_used] = node_num; 271553abd04SJoel Becker rm->rm_used++; 272553abd04SJoel Becker spin_unlock(&osb->osb_lock); 273553abd04SJoel Becker 274553abd04SJoel Becker return 0; 275553abd04SJoel Becker } 276553abd04SJoel Becker 277553abd04SJoel Becker static void ocfs2_recovery_map_clear(struct ocfs2_super *osb, 278553abd04SJoel Becker unsigned int node_num) 279553abd04SJoel Becker { 280553abd04SJoel Becker int i; 281553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 282553abd04SJoel Becker 283553abd04SJoel Becker spin_lock(&osb->osb_lock); 284553abd04SJoel Becker 285553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 286553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 287553abd04SJoel Becker break; 288553abd04SJoel Becker } 289553abd04SJoel Becker 290553abd04SJoel Becker if (i < rm->rm_used) { 291553abd04SJoel Becker /* XXX: be careful with the pointer math */ 292553abd04SJoel Becker memmove(&(rm->rm_entries[i]), &(rm->rm_entries[i + 1]), 293553abd04SJoel Becker (rm->rm_used - i - 1) * sizeof(unsigned int)); 294553abd04SJoel Becker rm->rm_used--; 295553abd04SJoel Becker } 296553abd04SJoel Becker 297553abd04SJoel Becker spin_unlock(&osb->osb_lock); 298553abd04SJoel Becker } 299553abd04SJoel Becker 300ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb) 301ccd979bdSMark Fasheh { 302ccd979bdSMark Fasheh int status = 0; 303ccd979bdSMark Fasheh unsigned int flushed; 304ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 305ccd979bdSMark Fasheh 306ccd979bdSMark Fasheh journal = osb->journal; 307ccd979bdSMark Fasheh 308ccd979bdSMark Fasheh /* Flush all pending commits and checkpoint the journal. */ 309ccd979bdSMark Fasheh down_write(&journal->j_trans_barrier); 310ccd979bdSMark Fasheh 311b4107950STao Ma flushed = atomic_read(&journal->j_num_trans); 312b4107950STao Ma trace_ocfs2_commit_cache_begin(flushed); 313b4107950STao Ma if (flushed == 0) { 314ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 315ccd979bdSMark Fasheh goto finally; 316ccd979bdSMark Fasheh } 317ccd979bdSMark Fasheh 3182b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 3192b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 3202b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 321ccd979bdSMark Fasheh if (status < 0) { 322ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 323ccd979bdSMark Fasheh mlog_errno(status); 324ccd979bdSMark Fasheh goto finally; 325ccd979bdSMark Fasheh } 326ccd979bdSMark Fasheh 327f9c57adaSTao Ma ocfs2_inc_trans_id(journal); 328ccd979bdSMark Fasheh 329ccd979bdSMark Fasheh flushed = atomic_read(&journal->j_num_trans); 330ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 331ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 332ccd979bdSMark Fasheh 333b4107950STao Ma trace_ocfs2_commit_cache_end(journal->j_trans_id, flushed); 334ccd979bdSMark Fasheh 33534d024f8SMark Fasheh ocfs2_wake_downconvert_thread(osb); 336ccd979bdSMark Fasheh wake_up(&journal->j_checkpointed); 337ccd979bdSMark Fasheh finally: 338ccd979bdSMark Fasheh return status; 339ccd979bdSMark Fasheh } 340ccd979bdSMark Fasheh 3411fabe148SMark Fasheh handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs) 342ccd979bdSMark Fasheh { 343ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 3441fabe148SMark Fasheh handle_t *handle; 345ccd979bdSMark Fasheh 346ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb || !osb->journal->j_journal); 347ccd979bdSMark Fasheh 34865eff9ccSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 34965eff9ccSMark Fasheh return ERR_PTR(-EROFS); 350ccd979bdSMark Fasheh 351ccd979bdSMark Fasheh BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); 352ccd979bdSMark Fasheh BUG_ON(max_buffs <= 0); 353ccd979bdSMark Fasheh 35490e86a63SJan Kara /* Nested transaction? Just return the handle... */ 35590e86a63SJan Kara if (journal_current_handle()) 35690e86a63SJan Kara return jbd2_journal_start(journal, max_buffs); 357ccd979bdSMark Fasheh 358fef6925cSJan Kara sb_start_intwrite(osb->sb); 359fef6925cSJan Kara 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); 365fef6925cSJan Kara sb_end_intwrite(osb->sb); 366ccd979bdSMark Fasheh 3671fabe148SMark Fasheh mlog_errno(PTR_ERR(handle)); 368ccd979bdSMark Fasheh 369ccd979bdSMark Fasheh if (is_journal_aborted(journal)) { 370ccd979bdSMark Fasheh ocfs2_abort(osb->sb, "Detected aborted journal"); 3711fabe148SMark Fasheh handle = ERR_PTR(-EROFS); 372ccd979bdSMark Fasheh } 373c271c5c2SSunil Mushran } else { 374c271c5c2SSunil Mushran if (!ocfs2_mount_local(osb)) 375ccd979bdSMark Fasheh atomic_inc(&(osb->journal->j_num_trans)); 376c271c5c2SSunil Mushran } 377ccd979bdSMark Fasheh 378ccd979bdSMark Fasheh return handle; 379ccd979bdSMark Fasheh } 380ccd979bdSMark Fasheh 3811fabe148SMark Fasheh int ocfs2_commit_trans(struct ocfs2_super *osb, 3821fabe148SMark Fasheh handle_t *handle) 383ccd979bdSMark Fasheh { 38490e86a63SJan Kara int ret, nested; 38502dc1af4SMark Fasheh struct ocfs2_journal *journal = osb->journal; 386ccd979bdSMark Fasheh 387ccd979bdSMark Fasheh BUG_ON(!handle); 388ccd979bdSMark Fasheh 38990e86a63SJan Kara nested = handle->h_ref > 1; 3902b4e30fbSJoel Becker ret = jbd2_journal_stop(handle); 3911fabe148SMark Fasheh if (ret < 0) 3921fabe148SMark Fasheh mlog_errno(ret); 393ccd979bdSMark Fasheh 394fef6925cSJan Kara if (!nested) { 395ccd979bdSMark Fasheh up_read(&journal->j_trans_barrier); 396fef6925cSJan Kara sb_end_intwrite(osb->sb); 397fef6925cSJan Kara } 398ccd979bdSMark Fasheh 3991fabe148SMark Fasheh return ret; 400ccd979bdSMark Fasheh } 401ccd979bdSMark Fasheh 402ccd979bdSMark Fasheh /* 403c901fb00STao Ma * 'nblocks' is what you want to add to the current transaction. 404ccd979bdSMark Fasheh * 4052b4e30fbSJoel Becker * This might call jbd2_journal_restart() which will commit dirty buffers 406e8aed345SMark Fasheh * and then restart the transaction. Before calling 407e8aed345SMark Fasheh * ocfs2_extend_trans(), any changed blocks should have been 408e8aed345SMark Fasheh * dirtied. After calling it, all blocks which need to be changed must 409e8aed345SMark Fasheh * go through another set of journal_access/journal_dirty calls. 410e8aed345SMark Fasheh * 411ccd979bdSMark Fasheh * WARNING: This will not release any semaphores or disk locks taken 412ccd979bdSMark Fasheh * during the transaction, so make sure they were taken *before* 413ccd979bdSMark Fasheh * start_trans or we'll have ordering deadlocks. 414ccd979bdSMark Fasheh * 415ccd979bdSMark Fasheh * WARNING2: Note that we do *not* drop j_trans_barrier here. This is 416ccd979bdSMark Fasheh * good because transaction ids haven't yet been recorded on the 417ccd979bdSMark Fasheh * cluster locks associated with this handle. 418ccd979bdSMark Fasheh */ 4191fc58146SMark Fasheh int ocfs2_extend_trans(handle_t *handle, int nblocks) 420ccd979bdSMark Fasheh { 421c901fb00STao Ma int status, old_nblocks; 422ccd979bdSMark Fasheh 423ccd979bdSMark Fasheh BUG_ON(!handle); 424c901fb00STao Ma BUG_ON(nblocks < 0); 425ccd979bdSMark Fasheh 426c901fb00STao Ma if (!nblocks) 427c901fb00STao Ma return 0; 428c901fb00STao Ma 429c901fb00STao Ma old_nblocks = handle->h_buffer_credits; 430ccd979bdSMark Fasheh 431b4107950STao Ma trace_ocfs2_extend_trans(old_nblocks, nblocks); 432ccd979bdSMark Fasheh 433e407e397SJoel Becker #ifdef CONFIG_OCFS2_DEBUG_FS 4340879c584SMark Fasheh status = 1; 4350879c584SMark Fasheh #else 4362b4e30fbSJoel Becker status = jbd2_journal_extend(handle, nblocks); 437ccd979bdSMark Fasheh if (status < 0) { 438ccd979bdSMark Fasheh mlog_errno(status); 439ccd979bdSMark Fasheh goto bail; 440ccd979bdSMark Fasheh } 4410879c584SMark Fasheh #endif 442ccd979bdSMark Fasheh 443ccd979bdSMark Fasheh if (status > 0) { 444b4107950STao Ma trace_ocfs2_extend_trans_restart(old_nblocks + nblocks); 445c901fb00STao Ma status = jbd2_journal_restart(handle, 446c901fb00STao Ma old_nblocks + nblocks); 447ccd979bdSMark Fasheh if (status < 0) { 448ccd979bdSMark Fasheh mlog_errno(status); 449ccd979bdSMark Fasheh goto bail; 450ccd979bdSMark Fasheh } 45101ddf1e1SMark Fasheh } 452ccd979bdSMark Fasheh 453ccd979bdSMark Fasheh status = 0; 454ccd979bdSMark Fasheh bail: 455ccd979bdSMark Fasheh return status; 456ccd979bdSMark Fasheh } 457ccd979bdSMark Fasheh 458*2b1e55c3SYounger Liu /* 459*2b1e55c3SYounger Liu * If we have fewer than thresh credits, extend by OCFS2_MAX_TRANS_DATA. 460*2b1e55c3SYounger Liu * If that fails, restart the transaction & regain write access for the 461*2b1e55c3SYounger Liu * buffer head which is used for metadata modifications. 462*2b1e55c3SYounger Liu * Taken from Ext4: extend_or_restart_transaction() 463*2b1e55c3SYounger Liu */ 464*2b1e55c3SYounger Liu int ocfs2_allocate_extend_trans(handle_t *handle, int thresh) 465*2b1e55c3SYounger Liu { 466*2b1e55c3SYounger Liu int status, old_nblks; 467*2b1e55c3SYounger Liu 468*2b1e55c3SYounger Liu BUG_ON(!handle); 469*2b1e55c3SYounger Liu 470*2b1e55c3SYounger Liu old_nblks = handle->h_buffer_credits; 471*2b1e55c3SYounger Liu trace_ocfs2_allocate_extend_trans(old_nblks, thresh); 472*2b1e55c3SYounger Liu 473*2b1e55c3SYounger Liu if (old_nblks < thresh) 474*2b1e55c3SYounger Liu return 0; 475*2b1e55c3SYounger Liu 476*2b1e55c3SYounger Liu status = jbd2_journal_extend(handle, OCFS2_MAX_TRANS_DATA); 477*2b1e55c3SYounger Liu if (status < 0) { 478*2b1e55c3SYounger Liu mlog_errno(status); 479*2b1e55c3SYounger Liu goto bail; 480*2b1e55c3SYounger Liu } 481*2b1e55c3SYounger Liu 482*2b1e55c3SYounger Liu if (status > 0) { 483*2b1e55c3SYounger Liu status = jbd2_journal_restart(handle, OCFS2_MAX_TRANS_DATA); 484*2b1e55c3SYounger Liu if (status < 0) 485*2b1e55c3SYounger Liu mlog_errno(status); 486*2b1e55c3SYounger Liu } 487*2b1e55c3SYounger Liu 488*2b1e55c3SYounger Liu bail: 489*2b1e55c3SYounger Liu return status; 490*2b1e55c3SYounger Liu } 491*2b1e55c3SYounger Liu 492*2b1e55c3SYounger Liu 49350655ae9SJoel Becker struct ocfs2_triggers { 49450655ae9SJoel Becker struct jbd2_buffer_trigger_type ot_triggers; 49550655ae9SJoel Becker int ot_offset; 49650655ae9SJoel Becker }; 49750655ae9SJoel Becker 49850655ae9SJoel Becker static inline struct ocfs2_triggers *to_ocfs2_trigger(struct jbd2_buffer_trigger_type *triggers) 49950655ae9SJoel Becker { 50050655ae9SJoel Becker return container_of(triggers, struct ocfs2_triggers, ot_triggers); 50150655ae9SJoel Becker } 50250655ae9SJoel Becker 50313ceef09SJan Kara static void ocfs2_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 50450655ae9SJoel Becker struct buffer_head *bh, 50550655ae9SJoel Becker void *data, size_t size) 50650655ae9SJoel Becker { 50750655ae9SJoel Becker struct ocfs2_triggers *ot = to_ocfs2_trigger(triggers); 50850655ae9SJoel Becker 50950655ae9SJoel Becker /* 51050655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 51150655ae9SJoel Becker * must unconditionally compute the ecc data. 51250655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 51350655ae9SJoel Becker * metaecc is enabled. 51450655ae9SJoel Becker */ 51550655ae9SJoel Becker ocfs2_block_check_compute(data, size, data + ot->ot_offset); 51650655ae9SJoel Becker } 51750655ae9SJoel Becker 51850655ae9SJoel Becker /* 51950655ae9SJoel Becker * Quota blocks have their own trigger because the struct ocfs2_block_check 52050655ae9SJoel Becker * offset depends on the blocksize. 52150655ae9SJoel Becker */ 52213ceef09SJan Kara static void ocfs2_dq_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 52350655ae9SJoel Becker struct buffer_head *bh, 52450655ae9SJoel Becker void *data, size_t size) 52550655ae9SJoel Becker { 52650655ae9SJoel Becker struct ocfs2_disk_dqtrailer *dqt = 52750655ae9SJoel Becker ocfs2_block_dqtrailer(size, data); 52850655ae9SJoel Becker 52950655ae9SJoel Becker /* 53050655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 53150655ae9SJoel Becker * must unconditionally compute the ecc data. 53250655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 53350655ae9SJoel Becker * metaecc is enabled. 53450655ae9SJoel Becker */ 53550655ae9SJoel Becker ocfs2_block_check_compute(data, size, &dqt->dq_check); 53650655ae9SJoel Becker } 53750655ae9SJoel Becker 538c175a518SJoel Becker /* 539c175a518SJoel Becker * Directory blocks also have their own trigger because the 540c175a518SJoel Becker * struct ocfs2_block_check offset depends on the blocksize. 541c175a518SJoel Becker */ 54213ceef09SJan Kara static void ocfs2_db_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 543c175a518SJoel Becker struct buffer_head *bh, 544c175a518SJoel Becker void *data, size_t size) 545c175a518SJoel Becker { 546c175a518SJoel Becker struct ocfs2_dir_block_trailer *trailer = 547c175a518SJoel Becker ocfs2_dir_trailer_from_size(size, data); 548c175a518SJoel Becker 549c175a518SJoel Becker /* 550c175a518SJoel Becker * We aren't guaranteed to have the superblock here, so we 551c175a518SJoel Becker * must unconditionally compute the ecc data. 552c175a518SJoel Becker * __ocfs2_journal_access() will only set the triggers if 553c175a518SJoel Becker * metaecc is enabled. 554c175a518SJoel Becker */ 555c175a518SJoel Becker ocfs2_block_check_compute(data, size, &trailer->db_check); 556c175a518SJoel Becker } 557c175a518SJoel Becker 55850655ae9SJoel Becker static void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *triggers, 55950655ae9SJoel Becker struct buffer_head *bh) 56050655ae9SJoel Becker { 56150655ae9SJoel Becker mlog(ML_ERROR, 56250655ae9SJoel Becker "ocfs2_abort_trigger called by JBD2. bh = 0x%lx, " 56350655ae9SJoel Becker "bh->b_blocknr = %llu\n", 56450655ae9SJoel Becker (unsigned long)bh, 56550655ae9SJoel Becker (unsigned long long)bh->b_blocknr); 56650655ae9SJoel Becker 56750655ae9SJoel Becker /* We aren't guaranteed to have the superblock here - but if we 56850655ae9SJoel Becker * don't, it'll just crash. */ 56950655ae9SJoel Becker ocfs2_error(bh->b_assoc_map->host->i_sb, 57050655ae9SJoel Becker "JBD2 has aborted our journal, ocfs2 cannot continue\n"); 57150655ae9SJoel Becker } 57250655ae9SJoel Becker 57350655ae9SJoel Becker static struct ocfs2_triggers di_triggers = { 57450655ae9SJoel Becker .ot_triggers = { 57513ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 57650655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 57750655ae9SJoel Becker }, 57850655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_dinode, i_check), 57950655ae9SJoel Becker }; 58050655ae9SJoel Becker 58150655ae9SJoel Becker static struct ocfs2_triggers eb_triggers = { 58250655ae9SJoel Becker .ot_triggers = { 58313ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 58450655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 58550655ae9SJoel Becker }, 58650655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_extent_block, h_check), 58750655ae9SJoel Becker }; 58850655ae9SJoel Becker 58993c97087STao Ma static struct ocfs2_triggers rb_triggers = { 59093c97087STao Ma .ot_triggers = { 59113ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 59293c97087STao Ma .t_abort = ocfs2_abort_trigger, 59393c97087STao Ma }, 59493c97087STao Ma .ot_offset = offsetof(struct ocfs2_refcount_block, rf_check), 59593c97087STao Ma }; 59693c97087STao Ma 59750655ae9SJoel Becker static struct ocfs2_triggers gd_triggers = { 59850655ae9SJoel Becker .ot_triggers = { 59913ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 60050655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 60150655ae9SJoel Becker }, 60250655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_group_desc, bg_check), 60350655ae9SJoel Becker }; 60450655ae9SJoel Becker 605c175a518SJoel Becker static struct ocfs2_triggers db_triggers = { 606c175a518SJoel Becker .ot_triggers = { 60713ceef09SJan Kara .t_frozen = ocfs2_db_frozen_trigger, 608c175a518SJoel Becker .t_abort = ocfs2_abort_trigger, 609c175a518SJoel Becker }, 610c175a518SJoel Becker }; 611c175a518SJoel Becker 61250655ae9SJoel Becker static struct ocfs2_triggers xb_triggers = { 61350655ae9SJoel Becker .ot_triggers = { 61413ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 61550655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 61650655ae9SJoel Becker }, 61750655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_xattr_block, xb_check), 61850655ae9SJoel Becker }; 61950655ae9SJoel Becker 62050655ae9SJoel Becker static struct ocfs2_triggers dq_triggers = { 62150655ae9SJoel Becker .ot_triggers = { 62213ceef09SJan Kara .t_frozen = ocfs2_dq_frozen_trigger, 62350655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 62450655ae9SJoel Becker }, 62550655ae9SJoel Becker }; 62650655ae9SJoel Becker 6279b7895efSMark Fasheh static struct ocfs2_triggers dr_triggers = { 6289b7895efSMark Fasheh .ot_triggers = { 62913ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 6309b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 6319b7895efSMark Fasheh }, 6329b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_root_block, dr_check), 6339b7895efSMark Fasheh }; 6349b7895efSMark Fasheh 6359b7895efSMark Fasheh static struct ocfs2_triggers dl_triggers = { 6369b7895efSMark Fasheh .ot_triggers = { 63713ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 6389b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 6399b7895efSMark Fasheh }, 6409b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_leaf, dl_check), 6419b7895efSMark Fasheh }; 6429b7895efSMark Fasheh 64350655ae9SJoel Becker static int __ocfs2_journal_access(handle_t *handle, 6440cf2f763SJoel Becker struct ocfs2_caching_info *ci, 645ccd979bdSMark Fasheh struct buffer_head *bh, 64650655ae9SJoel Becker struct ocfs2_triggers *triggers, 647ccd979bdSMark Fasheh int type) 648ccd979bdSMark Fasheh { 649ccd979bdSMark Fasheh int status; 6500cf2f763SJoel Becker struct ocfs2_super *osb = 6510cf2f763SJoel Becker OCFS2_SB(ocfs2_metadata_cache_get_super(ci)); 652ccd979bdSMark Fasheh 6530cf2f763SJoel Becker BUG_ON(!ci || !ci->ci_ops); 654ccd979bdSMark Fasheh BUG_ON(!handle); 655ccd979bdSMark Fasheh BUG_ON(!bh); 656ccd979bdSMark Fasheh 657b4107950STao Ma trace_ocfs2_journal_access( 658b4107950STao Ma (unsigned long long)ocfs2_metadata_cache_owner(ci), 659b4107950STao Ma (unsigned long long)bh->b_blocknr, type, bh->b_size); 660ccd979bdSMark Fasheh 661ccd979bdSMark Fasheh /* we can safely remove this assertion after testing. */ 662ccd979bdSMark Fasheh if (!buffer_uptodate(bh)) { 663ccd979bdSMark Fasheh mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); 664ccd979bdSMark Fasheh mlog(ML_ERROR, "b_blocknr=%llu\n", 665ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 666ccd979bdSMark Fasheh BUG(); 667ccd979bdSMark Fasheh } 668ccd979bdSMark Fasheh 6690cf2f763SJoel Becker /* Set the current transaction information on the ci so 670ccd979bdSMark Fasheh * that the locking code knows whether it can drop it's locks 6710cf2f763SJoel Becker * on this ci or not. We're protected from the commit 672ccd979bdSMark Fasheh * thread updating the current transaction id until 673ccd979bdSMark Fasheh * ocfs2_commit_trans() because ocfs2_start_trans() took 674ccd979bdSMark Fasheh * j_trans_barrier for us. */ 6750cf2f763SJoel Becker ocfs2_set_ci_lock_trans(osb->journal, ci); 676ccd979bdSMark Fasheh 6770cf2f763SJoel Becker ocfs2_metadata_cache_io_lock(ci); 678ccd979bdSMark Fasheh switch (type) { 679ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_CREATE: 680ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_WRITE: 6812b4e30fbSJoel Becker status = jbd2_journal_get_write_access(handle, bh); 682ccd979bdSMark Fasheh break; 683ccd979bdSMark Fasheh 684ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_UNDO: 6852b4e30fbSJoel Becker status = jbd2_journal_get_undo_access(handle, bh); 686ccd979bdSMark Fasheh break; 687ccd979bdSMark Fasheh 688ccd979bdSMark Fasheh default: 689ccd979bdSMark Fasheh status = -EINVAL; 690af901ca1SAndré Goddard Rosa mlog(ML_ERROR, "Unknown access type!\n"); 691ccd979bdSMark Fasheh } 6920cf2f763SJoel Becker if (!status && ocfs2_meta_ecc(osb) && triggers) 69350655ae9SJoel Becker jbd2_journal_set_triggers(bh, &triggers->ot_triggers); 6940cf2f763SJoel Becker ocfs2_metadata_cache_io_unlock(ci); 695ccd979bdSMark Fasheh 696ccd979bdSMark Fasheh if (status < 0) 697ccd979bdSMark Fasheh mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", 698ccd979bdSMark Fasheh status, type); 699ccd979bdSMark Fasheh 700ccd979bdSMark Fasheh return status; 701ccd979bdSMark Fasheh } 702ccd979bdSMark Fasheh 7030cf2f763SJoel Becker int ocfs2_journal_access_di(handle_t *handle, struct ocfs2_caching_info *ci, 70450655ae9SJoel Becker struct buffer_head *bh, int type) 70550655ae9SJoel Becker { 7060cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &di_triggers, type); 70750655ae9SJoel Becker } 70850655ae9SJoel Becker 7090cf2f763SJoel Becker int ocfs2_journal_access_eb(handle_t *handle, struct ocfs2_caching_info *ci, 71050655ae9SJoel Becker struct buffer_head *bh, int type) 71150655ae9SJoel Becker { 7120cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &eb_triggers, type); 71350655ae9SJoel Becker } 71450655ae9SJoel Becker 71593c97087STao Ma int ocfs2_journal_access_rb(handle_t *handle, struct ocfs2_caching_info *ci, 71693c97087STao Ma struct buffer_head *bh, int type) 71793c97087STao Ma { 71893c97087STao Ma return __ocfs2_journal_access(handle, ci, bh, &rb_triggers, 71993c97087STao Ma type); 72093c97087STao Ma } 72193c97087STao Ma 7220cf2f763SJoel Becker int ocfs2_journal_access_gd(handle_t *handle, struct ocfs2_caching_info *ci, 72350655ae9SJoel Becker struct buffer_head *bh, int type) 72450655ae9SJoel Becker { 7250cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &gd_triggers, type); 72650655ae9SJoel Becker } 72750655ae9SJoel Becker 7280cf2f763SJoel Becker int ocfs2_journal_access_db(handle_t *handle, struct ocfs2_caching_info *ci, 72950655ae9SJoel Becker struct buffer_head *bh, int type) 73050655ae9SJoel Becker { 7310cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &db_triggers, type); 73250655ae9SJoel Becker } 73350655ae9SJoel Becker 7340cf2f763SJoel Becker int ocfs2_journal_access_xb(handle_t *handle, struct ocfs2_caching_info *ci, 73550655ae9SJoel Becker struct buffer_head *bh, int type) 73650655ae9SJoel Becker { 7370cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &xb_triggers, type); 73850655ae9SJoel Becker } 73950655ae9SJoel Becker 7400cf2f763SJoel Becker int ocfs2_journal_access_dq(handle_t *handle, struct ocfs2_caching_info *ci, 74150655ae9SJoel Becker struct buffer_head *bh, int type) 74250655ae9SJoel Becker { 7430cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dq_triggers, type); 74450655ae9SJoel Becker } 74550655ae9SJoel Becker 7460cf2f763SJoel Becker int ocfs2_journal_access_dr(handle_t *handle, struct ocfs2_caching_info *ci, 7479b7895efSMark Fasheh struct buffer_head *bh, int type) 7489b7895efSMark Fasheh { 7490cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dr_triggers, type); 7509b7895efSMark Fasheh } 7519b7895efSMark Fasheh 7520cf2f763SJoel Becker int ocfs2_journal_access_dl(handle_t *handle, struct ocfs2_caching_info *ci, 7539b7895efSMark Fasheh struct buffer_head *bh, int type) 7549b7895efSMark Fasheh { 7550cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dl_triggers, type); 7569b7895efSMark Fasheh } 7579b7895efSMark Fasheh 7580cf2f763SJoel Becker int ocfs2_journal_access(handle_t *handle, struct ocfs2_caching_info *ci, 75950655ae9SJoel Becker struct buffer_head *bh, int type) 76050655ae9SJoel Becker { 7610cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, NULL, type); 76250655ae9SJoel Becker } 76350655ae9SJoel Becker 764ec20cec7SJoel Becker void ocfs2_journal_dirty(handle_t *handle, struct buffer_head *bh) 765ccd979bdSMark Fasheh { 766ccd979bdSMark Fasheh int status; 767ccd979bdSMark Fasheh 768b4107950STao Ma trace_ocfs2_journal_dirty((unsigned long long)bh->b_blocknr); 769ccd979bdSMark Fasheh 7702b4e30fbSJoel Becker status = jbd2_journal_dirty_metadata(handle, bh); 771ec20cec7SJoel Becker BUG_ON(status); 772ccd979bdSMark Fasheh } 773ccd979bdSMark Fasheh 7742b4e30fbSJoel Becker #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE) 775ccd979bdSMark Fasheh 776ccd979bdSMark Fasheh void ocfs2_set_journal_params(struct ocfs2_super *osb) 777ccd979bdSMark Fasheh { 778ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 779d147b3d6SMark Fasheh unsigned long commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; 780d147b3d6SMark Fasheh 781d147b3d6SMark Fasheh if (osb->osb_commit_interval) 782d147b3d6SMark Fasheh commit_interval = osb->osb_commit_interval; 783ccd979bdSMark Fasheh 784a931da6aSTheodore Ts'o write_lock(&journal->j_state_lock); 785d147b3d6SMark Fasheh journal->j_commit_interval = commit_interval; 786ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) 7872b4e30fbSJoel Becker journal->j_flags |= JBD2_BARRIER; 788ccd979bdSMark Fasheh else 7892b4e30fbSJoel Becker journal->j_flags &= ~JBD2_BARRIER; 790a931da6aSTheodore Ts'o write_unlock(&journal->j_state_lock); 791ccd979bdSMark Fasheh } 792ccd979bdSMark Fasheh 793ccd979bdSMark Fasheh int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty) 794ccd979bdSMark Fasheh { 795ccd979bdSMark Fasheh int status = -1; 796ccd979bdSMark Fasheh struct inode *inode = NULL; /* the journal inode */ 797ccd979bdSMark Fasheh journal_t *j_journal = NULL; 798ccd979bdSMark Fasheh struct ocfs2_dinode *di = NULL; 799ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 800ccd979bdSMark Fasheh struct ocfs2_super *osb; 801e63aecb6SMark Fasheh int inode_lock = 0; 802ccd979bdSMark Fasheh 803ccd979bdSMark Fasheh BUG_ON(!journal); 804ccd979bdSMark Fasheh 805ccd979bdSMark Fasheh osb = journal->j_osb; 806ccd979bdSMark Fasheh 807ccd979bdSMark Fasheh /* already have the inode for our journal */ 808ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 809ccd979bdSMark Fasheh osb->slot_num); 810ccd979bdSMark Fasheh if (inode == NULL) { 811ccd979bdSMark Fasheh status = -EACCES; 812ccd979bdSMark Fasheh mlog_errno(status); 813ccd979bdSMark Fasheh goto done; 814ccd979bdSMark Fasheh } 815ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 816ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 817ccd979bdSMark Fasheh iput(inode); 818ccd979bdSMark Fasheh inode = NULL; 819ccd979bdSMark Fasheh status = -EACCES; 820ccd979bdSMark Fasheh goto done; 821ccd979bdSMark Fasheh } 822ccd979bdSMark Fasheh 823ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 824ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count++; 825ccd979bdSMark Fasheh 8266eff5790SMark Fasheh /* Skip recovery waits here - journal inode metadata never 8276eff5790SMark Fasheh * changes in a live cluster so it can be considered an 8286eff5790SMark Fasheh * exception to the rule. */ 829e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 830ccd979bdSMark Fasheh if (status < 0) { 831ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 832ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not get lock on journal!\n"); 833ccd979bdSMark Fasheh goto done; 834ccd979bdSMark Fasheh } 835ccd979bdSMark Fasheh 836e63aecb6SMark Fasheh inode_lock = 1; 837ccd979bdSMark Fasheh di = (struct ocfs2_dinode *)bh->b_data; 838ccd979bdSMark Fasheh 839ccd979bdSMark Fasheh if (inode->i_size < OCFS2_MIN_JOURNAL_SIZE) { 840ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", 841ccd979bdSMark Fasheh inode->i_size); 842ccd979bdSMark Fasheh status = -EINVAL; 843ccd979bdSMark Fasheh goto done; 844ccd979bdSMark Fasheh } 845ccd979bdSMark Fasheh 846b4107950STao Ma trace_ocfs2_journal_init(inode->i_size, 847b4107950STao Ma (unsigned long long)inode->i_blocks, 848b4107950STao Ma OCFS2_I(inode)->ip_clusters); 849ccd979bdSMark Fasheh 850ccd979bdSMark Fasheh /* call the kernels journal init function now */ 8512b4e30fbSJoel Becker j_journal = jbd2_journal_init_inode(inode); 852ccd979bdSMark Fasheh if (j_journal == NULL) { 853ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 854ccd979bdSMark Fasheh status = -EINVAL; 855ccd979bdSMark Fasheh goto done; 856ccd979bdSMark Fasheh } 857ccd979bdSMark Fasheh 858b4107950STao Ma trace_ocfs2_journal_init_maxlen(j_journal->j_maxlen); 859ccd979bdSMark Fasheh 860ccd979bdSMark Fasheh *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & 861ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL); 862ccd979bdSMark Fasheh 863ccd979bdSMark Fasheh journal->j_journal = j_journal; 864ccd979bdSMark Fasheh journal->j_inode = inode; 865ccd979bdSMark Fasheh journal->j_bh = bh; 866ccd979bdSMark Fasheh 867ccd979bdSMark Fasheh ocfs2_set_journal_params(osb); 868ccd979bdSMark Fasheh 869ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_LOADED; 870ccd979bdSMark Fasheh 871ccd979bdSMark Fasheh status = 0; 872ccd979bdSMark Fasheh done: 873ccd979bdSMark Fasheh if (status < 0) { 874e63aecb6SMark Fasheh if (inode_lock) 875e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 876ccd979bdSMark Fasheh brelse(bh); 877ccd979bdSMark Fasheh if (inode) { 878ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 879ccd979bdSMark Fasheh iput(inode); 880ccd979bdSMark Fasheh } 881ccd979bdSMark Fasheh } 882ccd979bdSMark Fasheh 883ccd979bdSMark Fasheh return status; 884ccd979bdSMark Fasheh } 885ccd979bdSMark Fasheh 886539d8264SSunil Mushran static void ocfs2_bump_recovery_generation(struct ocfs2_dinode *di) 887539d8264SSunil Mushran { 888539d8264SSunil Mushran le32_add_cpu(&(di->id1.journal1.ij_recovery_generation), 1); 889539d8264SSunil Mushran } 890539d8264SSunil Mushran 891539d8264SSunil Mushran static u32 ocfs2_get_recovery_generation(struct ocfs2_dinode *di) 892539d8264SSunil Mushran { 893539d8264SSunil Mushran return le32_to_cpu(di->id1.journal1.ij_recovery_generation); 894539d8264SSunil Mushran } 895539d8264SSunil Mushran 896ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 897539d8264SSunil Mushran int dirty, int replayed) 898ccd979bdSMark Fasheh { 899ccd979bdSMark Fasheh int status; 900ccd979bdSMark Fasheh unsigned int flags; 901ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 902ccd979bdSMark Fasheh struct buffer_head *bh = journal->j_bh; 903ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 904ccd979bdSMark Fasheh 905ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *)bh->b_data; 90610995aa2SJoel Becker 90710995aa2SJoel Becker /* The journal bh on the osb always comes from ocfs2_journal_init() 90810995aa2SJoel Becker * and was validated there inside ocfs2_inode_lock_full(). It's a 90910995aa2SJoel Becker * code bug if we mess it up. */ 91010995aa2SJoel Becker BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); 911ccd979bdSMark Fasheh 912ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 913ccd979bdSMark Fasheh if (dirty) 914ccd979bdSMark Fasheh flags |= OCFS2_JOURNAL_DIRTY_FL; 915ccd979bdSMark Fasheh else 916ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 917ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 918ccd979bdSMark Fasheh 919539d8264SSunil Mushran if (replayed) 920539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 921539d8264SSunil Mushran 92213723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 9238cb471e8SJoel Becker status = ocfs2_write_block(osb, bh, INODE_CACHE(journal->j_inode)); 924ccd979bdSMark Fasheh if (status < 0) 925ccd979bdSMark Fasheh mlog_errno(status); 926ccd979bdSMark Fasheh 927ccd979bdSMark Fasheh return status; 928ccd979bdSMark Fasheh } 929ccd979bdSMark Fasheh 930ccd979bdSMark Fasheh /* 931ccd979bdSMark Fasheh * If the journal has been kmalloc'd it needs to be freed after this 932ccd979bdSMark Fasheh * call. 933ccd979bdSMark Fasheh */ 934ccd979bdSMark Fasheh void ocfs2_journal_shutdown(struct ocfs2_super *osb) 935ccd979bdSMark Fasheh { 936ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 937ccd979bdSMark Fasheh int status = 0; 938ccd979bdSMark Fasheh struct inode *inode = NULL; 939ccd979bdSMark Fasheh int num_running_trans = 0; 940ccd979bdSMark Fasheh 941ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb); 942ccd979bdSMark Fasheh 943ccd979bdSMark Fasheh journal = osb->journal; 944ccd979bdSMark Fasheh if (!journal) 945ccd979bdSMark Fasheh goto done; 946ccd979bdSMark Fasheh 947ccd979bdSMark Fasheh inode = journal->j_inode; 948ccd979bdSMark Fasheh 949ccd979bdSMark Fasheh if (journal->j_state != OCFS2_JOURNAL_LOADED) 950ccd979bdSMark Fasheh goto done; 951ccd979bdSMark Fasheh 9522b4e30fbSJoel Becker /* need to inc inode use count - jbd2_journal_destroy will iput. */ 953ccd979bdSMark Fasheh if (!igrab(inode)) 954ccd979bdSMark Fasheh BUG(); 955ccd979bdSMark Fasheh 956ccd979bdSMark Fasheh num_running_trans = atomic_read(&(osb->journal->j_num_trans)); 957b4107950STao Ma trace_ocfs2_journal_shutdown(num_running_trans); 958ccd979bdSMark Fasheh 959ccd979bdSMark Fasheh /* Do a commit_cache here. It will flush our journal, *and* 960ccd979bdSMark Fasheh * release any locks that are still held. 961ccd979bdSMark Fasheh * set the SHUTDOWN flag and release the trans lock. 962ccd979bdSMark Fasheh * the commit thread will take the trans lock for us below. */ 963ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; 964ccd979bdSMark Fasheh 965ccd979bdSMark Fasheh /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not 966ccd979bdSMark Fasheh * drop the trans_lock (which we want to hold until we 967ccd979bdSMark Fasheh * completely destroy the journal. */ 968ccd979bdSMark Fasheh if (osb->commit_task) { 969ccd979bdSMark Fasheh /* Wait for the commit thread */ 970b4107950STao Ma trace_ocfs2_journal_shutdown_wait(osb->commit_task); 971ccd979bdSMark Fasheh kthread_stop(osb->commit_task); 972ccd979bdSMark Fasheh osb->commit_task = NULL; 973ccd979bdSMark Fasheh } 974ccd979bdSMark Fasheh 975ccd979bdSMark Fasheh BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); 976ccd979bdSMark Fasheh 977c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 9782b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 9792b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 9802b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 981c271c5c2SSunil Mushran if (status < 0) 982c271c5c2SSunil Mushran mlog_errno(status); 983c271c5c2SSunil Mushran } 984c271c5c2SSunil Mushran 985c271c5c2SSunil Mushran if (status == 0) { 986c271c5c2SSunil Mushran /* 987c271c5c2SSunil Mushran * Do not toggle if flush was unsuccessful otherwise 988c271c5c2SSunil Mushran * will leave dirty metadata in a "clean" journal 989c271c5c2SSunil Mushran */ 990539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 0, 0); 991ccd979bdSMark Fasheh if (status < 0) 992ccd979bdSMark Fasheh mlog_errno(status); 993c271c5c2SSunil Mushran } 994ccd979bdSMark Fasheh 995ccd979bdSMark Fasheh /* Shutdown the kernel journal system */ 9962b4e30fbSJoel Becker jbd2_journal_destroy(journal->j_journal); 997ae0dff68SSunil Mushran journal->j_journal = NULL; 998ccd979bdSMark Fasheh 999ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 1000ccd979bdSMark Fasheh 1001ccd979bdSMark Fasheh /* unlock our journal */ 1002e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1003ccd979bdSMark Fasheh 1004ccd979bdSMark Fasheh brelse(journal->j_bh); 1005ccd979bdSMark Fasheh journal->j_bh = NULL; 1006ccd979bdSMark Fasheh 1007ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 1008ccd979bdSMark Fasheh 1009ccd979bdSMark Fasheh // up_write(&journal->j_trans_barrier); 1010ccd979bdSMark Fasheh done: 1011ccd979bdSMark Fasheh if (inode) 1012ccd979bdSMark Fasheh iput(inode); 1013ccd979bdSMark Fasheh } 1014ccd979bdSMark Fasheh 1015ccd979bdSMark Fasheh static void ocfs2_clear_journal_error(struct super_block *sb, 1016ccd979bdSMark Fasheh journal_t *journal, 1017ccd979bdSMark Fasheh int slot) 1018ccd979bdSMark Fasheh { 1019ccd979bdSMark Fasheh int olderr; 1020ccd979bdSMark Fasheh 10212b4e30fbSJoel Becker olderr = jbd2_journal_errno(journal); 1022ccd979bdSMark Fasheh if (olderr) { 1023ccd979bdSMark Fasheh mlog(ML_ERROR, "File system error %d recorded in " 1024ccd979bdSMark Fasheh "journal %u.\n", olderr, slot); 1025ccd979bdSMark Fasheh mlog(ML_ERROR, "File system on device %s needs checking.\n", 1026ccd979bdSMark Fasheh sb->s_id); 1027ccd979bdSMark Fasheh 10282b4e30fbSJoel Becker jbd2_journal_ack_err(journal); 10292b4e30fbSJoel Becker jbd2_journal_clear_err(journal); 1030ccd979bdSMark Fasheh } 1031ccd979bdSMark Fasheh } 1032ccd979bdSMark Fasheh 1033539d8264SSunil Mushran int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed) 1034ccd979bdSMark Fasheh { 1035ccd979bdSMark Fasheh int status = 0; 1036ccd979bdSMark Fasheh struct ocfs2_super *osb; 1037ccd979bdSMark Fasheh 1038b1f3550fSJulia Lawall BUG_ON(!journal); 1039ccd979bdSMark Fasheh 1040ccd979bdSMark Fasheh osb = journal->j_osb; 1041ccd979bdSMark Fasheh 10422b4e30fbSJoel Becker status = jbd2_journal_load(journal->j_journal); 1043ccd979bdSMark Fasheh if (status < 0) { 1044ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to load journal!\n"); 1045ccd979bdSMark Fasheh goto done; 1046ccd979bdSMark Fasheh } 1047ccd979bdSMark Fasheh 1048ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); 1049ccd979bdSMark Fasheh 1050539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 1, replayed); 1051ccd979bdSMark Fasheh if (status < 0) { 1052ccd979bdSMark Fasheh mlog_errno(status); 1053ccd979bdSMark Fasheh goto done; 1054ccd979bdSMark Fasheh } 1055ccd979bdSMark Fasheh 1056ccd979bdSMark Fasheh /* Launch the commit thread */ 1057c271c5c2SSunil Mushran if (!local) { 1058c271c5c2SSunil Mushran osb->commit_task = kthread_run(ocfs2_commit_thread, osb, 1059c271c5c2SSunil Mushran "ocfs2cmt"); 1060ccd979bdSMark Fasheh if (IS_ERR(osb->commit_task)) { 1061ccd979bdSMark Fasheh status = PTR_ERR(osb->commit_task); 1062ccd979bdSMark Fasheh osb->commit_task = NULL; 1063c271c5c2SSunil Mushran mlog(ML_ERROR, "unable to launch ocfs2commit thread, " 1064c271c5c2SSunil Mushran "error=%d", status); 1065ccd979bdSMark Fasheh goto done; 1066ccd979bdSMark Fasheh } 1067c271c5c2SSunil Mushran } else 1068c271c5c2SSunil Mushran osb->commit_task = NULL; 1069ccd979bdSMark Fasheh 1070ccd979bdSMark Fasheh done: 1071ccd979bdSMark Fasheh return status; 1072ccd979bdSMark Fasheh } 1073ccd979bdSMark Fasheh 1074ccd979bdSMark Fasheh 1075ccd979bdSMark Fasheh /* 'full' flag tells us whether we clear out all blocks or if we just 1076ccd979bdSMark Fasheh * mark the journal clean */ 1077ccd979bdSMark Fasheh int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) 1078ccd979bdSMark Fasheh { 1079ccd979bdSMark Fasheh int status; 1080ccd979bdSMark Fasheh 1081ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!journal); 1082ccd979bdSMark Fasheh 10832b4e30fbSJoel Becker status = jbd2_journal_wipe(journal->j_journal, full); 1084ccd979bdSMark Fasheh if (status < 0) { 1085ccd979bdSMark Fasheh mlog_errno(status); 1086ccd979bdSMark Fasheh goto bail; 1087ccd979bdSMark Fasheh } 1088ccd979bdSMark Fasheh 1089539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(journal->j_osb, 0, 0); 1090ccd979bdSMark Fasheh if (status < 0) 1091ccd979bdSMark Fasheh mlog_errno(status); 1092ccd979bdSMark Fasheh 1093ccd979bdSMark Fasheh bail: 1094ccd979bdSMark Fasheh return status; 1095ccd979bdSMark Fasheh } 1096ccd979bdSMark Fasheh 1097553abd04SJoel Becker static int ocfs2_recovery_completed(struct ocfs2_super *osb) 1098553abd04SJoel Becker { 1099553abd04SJoel Becker int empty; 1100553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 1101553abd04SJoel Becker 1102553abd04SJoel Becker spin_lock(&osb->osb_lock); 1103553abd04SJoel Becker empty = (rm->rm_used == 0); 1104553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1105553abd04SJoel Becker 1106553abd04SJoel Becker return empty; 1107553abd04SJoel Becker } 1108553abd04SJoel Becker 1109553abd04SJoel Becker void ocfs2_wait_for_recovery(struct ocfs2_super *osb) 1110553abd04SJoel Becker { 1111553abd04SJoel Becker wait_event(osb->recovery_event, ocfs2_recovery_completed(osb)); 1112553abd04SJoel Becker } 1113553abd04SJoel Becker 1114ccd979bdSMark Fasheh /* 1115ccd979bdSMark Fasheh * JBD Might read a cached version of another nodes journal file. We 1116ccd979bdSMark Fasheh * don't want this as this file changes often and we get no 1117ccd979bdSMark Fasheh * notification on those changes. The only way to be sure that we've 1118ccd979bdSMark Fasheh * got the most up to date version of those blocks then is to force 1119ccd979bdSMark Fasheh * read them off disk. Just searching through the buffer cache won't 1120ccd979bdSMark Fasheh * work as there may be pages backing this file which are still marked 1121ccd979bdSMark Fasheh * up to date. We know things can't change on this file underneath us 1122ccd979bdSMark Fasheh * as we have the lock by now :) 1123ccd979bdSMark Fasheh */ 1124ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode) 1125ccd979bdSMark Fasheh { 1126ccd979bdSMark Fasheh int status = 0; 11274f902c37SMark Fasheh int i; 11288110b073SMark Fasheh u64 v_blkno, p_blkno, p_blocks, num_blocks; 11294f902c37SMark Fasheh #define CONCURRENT_JOURNAL_FILL 32ULL 1130ccd979bdSMark Fasheh struct buffer_head *bhs[CONCURRENT_JOURNAL_FILL]; 1131ccd979bdSMark Fasheh 1132ccd979bdSMark Fasheh memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL); 1133ccd979bdSMark Fasheh 11348110b073SMark Fasheh num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, inode->i_size); 1135ccd979bdSMark Fasheh v_blkno = 0; 11368110b073SMark Fasheh while (v_blkno < num_blocks) { 1137ccd979bdSMark Fasheh status = ocfs2_extent_map_get_blocks(inode, v_blkno, 113849cb8d2dSMark Fasheh &p_blkno, &p_blocks, NULL); 1139ccd979bdSMark Fasheh if (status < 0) { 1140ccd979bdSMark Fasheh mlog_errno(status); 1141ccd979bdSMark Fasheh goto bail; 1142ccd979bdSMark Fasheh } 1143ccd979bdSMark Fasheh 1144ccd979bdSMark Fasheh if (p_blocks > CONCURRENT_JOURNAL_FILL) 1145ccd979bdSMark Fasheh p_blocks = CONCURRENT_JOURNAL_FILL; 1146ccd979bdSMark Fasheh 1147dd4a2c2bSMark Fasheh /* We are reading journal data which should not 1148dd4a2c2bSMark Fasheh * be put in the uptodate cache */ 1149da1e9098SJoel Becker status = ocfs2_read_blocks_sync(OCFS2_SB(inode->i_sb), 1150da1e9098SJoel Becker p_blkno, p_blocks, bhs); 1151ccd979bdSMark Fasheh if (status < 0) { 1152ccd979bdSMark Fasheh mlog_errno(status); 1153ccd979bdSMark Fasheh goto bail; 1154ccd979bdSMark Fasheh } 1155ccd979bdSMark Fasheh 1156ccd979bdSMark Fasheh for(i = 0; i < p_blocks; i++) { 1157ccd979bdSMark Fasheh brelse(bhs[i]); 1158ccd979bdSMark Fasheh bhs[i] = NULL; 1159ccd979bdSMark Fasheh } 1160ccd979bdSMark Fasheh 1161ccd979bdSMark Fasheh v_blkno += p_blocks; 1162ccd979bdSMark Fasheh } 1163ccd979bdSMark Fasheh 1164ccd979bdSMark Fasheh bail: 1165ccd979bdSMark Fasheh for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++) 1166ccd979bdSMark Fasheh brelse(bhs[i]); 1167ccd979bdSMark Fasheh return status; 1168ccd979bdSMark Fasheh } 1169ccd979bdSMark Fasheh 1170ccd979bdSMark Fasheh struct ocfs2_la_recovery_item { 1171ccd979bdSMark Fasheh struct list_head lri_list; 1172ccd979bdSMark Fasheh int lri_slot; 1173ccd979bdSMark Fasheh struct ocfs2_dinode *lri_la_dinode; 1174ccd979bdSMark Fasheh struct ocfs2_dinode *lri_tl_dinode; 11752205363dSJan Kara struct ocfs2_quota_recovery *lri_qrec; 1176ccd979bdSMark Fasheh }; 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh /* Does the second half of the recovery process. By this point, the 1179ccd979bdSMark Fasheh * node is marked clean and can actually be considered recovered, 1180ccd979bdSMark Fasheh * hence it's no longer in the recovery map, but there's still some 1181ccd979bdSMark Fasheh * cleanup we can do which shouldn't happen within the recovery thread 1182ccd979bdSMark Fasheh * as locking in that context becomes very difficult if we are to take 1183ccd979bdSMark Fasheh * recovering nodes into account. 1184ccd979bdSMark Fasheh * 1185ccd979bdSMark Fasheh * NOTE: This function can and will sleep on recovery of other nodes 1186ccd979bdSMark Fasheh * during cluster locking, just like any other ocfs2 process. 1187ccd979bdSMark Fasheh */ 1188c4028958SDavid Howells void ocfs2_complete_recovery(struct work_struct *work) 1189ccd979bdSMark Fasheh { 1190b4107950STao Ma int ret = 0; 1191c4028958SDavid Howells struct ocfs2_journal *journal = 1192c4028958SDavid Howells container_of(work, struct ocfs2_journal, j_recovery_work); 1193c4028958SDavid Howells struct ocfs2_super *osb = journal->j_osb; 1194ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, *tl_dinode; 1195800deef3SChristoph Hellwig struct ocfs2_la_recovery_item *item, *n; 11962205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1197ccd979bdSMark Fasheh LIST_HEAD(tmp_la_list); 1198ccd979bdSMark Fasheh 1199b4107950STao Ma trace_ocfs2_complete_recovery( 1200b4107950STao Ma (unsigned long long)OCFS2_I(journal->j_inode)->ip_blkno); 1201ccd979bdSMark Fasheh 1202ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1203ccd979bdSMark Fasheh list_splice_init(&journal->j_la_cleanups, &tmp_la_list); 1204ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1205ccd979bdSMark Fasheh 1206800deef3SChristoph Hellwig list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) { 1207ccd979bdSMark Fasheh list_del_init(&item->lri_list); 1208ccd979bdSMark Fasheh 120919ece546SJan Kara ocfs2_wait_on_quotas(osb); 121019ece546SJan Kara 1211ccd979bdSMark Fasheh la_dinode = item->lri_la_dinode; 1212b4107950STao Ma tl_dinode = item->lri_tl_dinode; 1213b4107950STao Ma qrec = item->lri_qrec; 1214ccd979bdSMark Fasheh 1215b4107950STao Ma trace_ocfs2_complete_recovery_slot(item->lri_slot, 1216b4107950STao Ma la_dinode ? le64_to_cpu(la_dinode->i_blkno) : 0, 1217b4107950STao Ma tl_dinode ? le64_to_cpu(tl_dinode->i_blkno) : 0, 1218b4107950STao Ma qrec); 1219b4107950STao Ma 1220b4107950STao Ma if (la_dinode) { 1221ccd979bdSMark Fasheh ret = ocfs2_complete_local_alloc_recovery(osb, 1222ccd979bdSMark Fasheh la_dinode); 1223ccd979bdSMark Fasheh if (ret < 0) 1224ccd979bdSMark Fasheh mlog_errno(ret); 1225ccd979bdSMark Fasheh 1226ccd979bdSMark Fasheh kfree(la_dinode); 1227ccd979bdSMark Fasheh } 1228ccd979bdSMark Fasheh 1229ccd979bdSMark Fasheh if (tl_dinode) { 1230ccd979bdSMark Fasheh ret = ocfs2_complete_truncate_log_recovery(osb, 1231ccd979bdSMark Fasheh tl_dinode); 1232ccd979bdSMark Fasheh if (ret < 0) 1233ccd979bdSMark Fasheh mlog_errno(ret); 1234ccd979bdSMark Fasheh 1235ccd979bdSMark Fasheh kfree(tl_dinode); 1236ccd979bdSMark Fasheh } 1237ccd979bdSMark Fasheh 1238ccd979bdSMark Fasheh ret = ocfs2_recover_orphans(osb, item->lri_slot); 1239ccd979bdSMark Fasheh if (ret < 0) 1240ccd979bdSMark Fasheh mlog_errno(ret); 1241ccd979bdSMark Fasheh 12422205363dSJan Kara if (qrec) { 12432205363dSJan Kara ret = ocfs2_finish_quota_recovery(osb, qrec, 12442205363dSJan Kara item->lri_slot); 12452205363dSJan Kara if (ret < 0) 12462205363dSJan Kara mlog_errno(ret); 12472205363dSJan Kara /* Recovery info is already freed now */ 12482205363dSJan Kara } 12492205363dSJan Kara 1250ccd979bdSMark Fasheh kfree(item); 1251ccd979bdSMark Fasheh } 1252ccd979bdSMark Fasheh 1253b4107950STao Ma trace_ocfs2_complete_recovery_end(ret); 1254ccd979bdSMark Fasheh } 1255ccd979bdSMark Fasheh 1256ccd979bdSMark Fasheh /* NOTE: This function always eats your references to la_dinode and 1257ccd979bdSMark Fasheh * tl_dinode, either manually on error, or by passing them to 1258ccd979bdSMark Fasheh * ocfs2_complete_recovery */ 1259ccd979bdSMark Fasheh static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 1260ccd979bdSMark Fasheh int slot_num, 1261ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, 12622205363dSJan Kara struct ocfs2_dinode *tl_dinode, 12632205363dSJan Kara struct ocfs2_quota_recovery *qrec) 1264ccd979bdSMark Fasheh { 1265ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 1266ccd979bdSMark Fasheh 1267afae00abSSunil Mushran item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS); 1268ccd979bdSMark Fasheh if (!item) { 1269ccd979bdSMark Fasheh /* Though we wish to avoid it, we are in fact safe in 1270ccd979bdSMark Fasheh * skipping local alloc cleanup as fsck.ocfs2 is more 1271ccd979bdSMark Fasheh * than capable of reclaiming unused space. */ 1272ccd979bdSMark Fasheh kfree(la_dinode); 1273ccd979bdSMark Fasheh kfree(tl_dinode); 1274ccd979bdSMark Fasheh 12752205363dSJan Kara if (qrec) 12762205363dSJan Kara ocfs2_free_quota_recovery(qrec); 12772205363dSJan Kara 1278ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 1279ccd979bdSMark Fasheh return; 1280ccd979bdSMark Fasheh } 1281ccd979bdSMark Fasheh 1282ccd979bdSMark Fasheh INIT_LIST_HEAD(&item->lri_list); 1283ccd979bdSMark Fasheh item->lri_la_dinode = la_dinode; 1284ccd979bdSMark Fasheh item->lri_slot = slot_num; 1285ccd979bdSMark Fasheh item->lri_tl_dinode = tl_dinode; 12862205363dSJan Kara item->lri_qrec = qrec; 1287ccd979bdSMark Fasheh 1288ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1289ccd979bdSMark Fasheh list_add_tail(&item->lri_list, &journal->j_la_cleanups); 1290ccd979bdSMark Fasheh queue_work(ocfs2_wq, &journal->j_recovery_work); 1291ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1292ccd979bdSMark Fasheh } 1293ccd979bdSMark Fasheh 1294ccd979bdSMark Fasheh /* Called by the mount code to queue recovery the last part of 12959140db04SSrinivas Eeda * recovery for it's own and offline slot(s). */ 1296ccd979bdSMark Fasheh void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) 1297ccd979bdSMark Fasheh { 1298ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 1299ccd979bdSMark Fasheh 130010b3dd76SSunil Mushran if (ocfs2_is_hard_readonly(osb)) 130110b3dd76SSunil Mushran return; 130210b3dd76SSunil Mushran 13039140db04SSrinivas Eeda /* No need to queue up our truncate_log as regular cleanup will catch 13049140db04SSrinivas Eeda * that */ 13059140db04SSrinivas Eeda ocfs2_queue_recovery_completion(journal, osb->slot_num, 13069140db04SSrinivas Eeda osb->local_alloc_copy, NULL, NULL); 1307ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 1308ccd979bdSMark Fasheh 1309ccd979bdSMark Fasheh osb->local_alloc_copy = NULL; 1310ccd979bdSMark Fasheh osb->dirty = 0; 13119140db04SSrinivas Eeda 13129140db04SSrinivas Eeda /* queue to recover orphan slots for all offline slots */ 13139140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 13149140db04SSrinivas Eeda ocfs2_queue_replay_slots(osb); 13159140db04SSrinivas Eeda ocfs2_free_replay_slots(osb); 1316ccd979bdSMark Fasheh } 1317ccd979bdSMark Fasheh 13182205363dSJan Kara void ocfs2_complete_quota_recovery(struct ocfs2_super *osb) 13192205363dSJan Kara { 13202205363dSJan Kara if (osb->quota_rec) { 13212205363dSJan Kara ocfs2_queue_recovery_completion(osb->journal, 13222205363dSJan Kara osb->slot_num, 13232205363dSJan Kara NULL, 13242205363dSJan Kara NULL, 13252205363dSJan Kara osb->quota_rec); 13262205363dSJan Kara osb->quota_rec = NULL; 13272205363dSJan Kara } 13282205363dSJan Kara } 13292205363dSJan Kara 1330ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg) 1331ccd979bdSMark Fasheh { 13322205363dSJan Kara int status, node_num, slot_num; 1333ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 1334553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 13352205363dSJan Kara int *rm_quota = NULL; 13362205363dSJan Kara int rm_quota_used = 0, i; 13372205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1338ccd979bdSMark Fasheh 1339ccd979bdSMark Fasheh status = ocfs2_wait_on_mount(osb); 1340ccd979bdSMark Fasheh if (status < 0) { 1341ccd979bdSMark Fasheh goto bail; 1342ccd979bdSMark Fasheh } 1343ccd979bdSMark Fasheh 13442205363dSJan Kara rm_quota = kzalloc(osb->max_slots * sizeof(int), GFP_NOFS); 13452205363dSJan Kara if (!rm_quota) { 13462205363dSJan Kara status = -ENOMEM; 13472205363dSJan Kara goto bail; 13482205363dSJan Kara } 1349ccd979bdSMark Fasheh restart: 1350ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1351ccd979bdSMark Fasheh if (status < 0) { 1352ccd979bdSMark Fasheh mlog_errno(status); 1353ccd979bdSMark Fasheh goto bail; 1354ccd979bdSMark Fasheh } 1355ccd979bdSMark Fasheh 13569140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 13579140db04SSrinivas Eeda if (status < 0) 13589140db04SSrinivas Eeda mlog_errno(status); 13599140db04SSrinivas Eeda 13609140db04SSrinivas Eeda /* queue recovery for our own slot */ 13619140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, 13629140db04SSrinivas Eeda NULL, NULL); 13639140db04SSrinivas Eeda 1364553abd04SJoel Becker spin_lock(&osb->osb_lock); 1365553abd04SJoel Becker while (rm->rm_used) { 1366553abd04SJoel Becker /* It's always safe to remove entry zero, as we won't 1367553abd04SJoel Becker * clear it until ocfs2_recover_node() has succeeded. */ 1368553abd04SJoel Becker node_num = rm->rm_entries[0]; 1369553abd04SJoel Becker spin_unlock(&osb->osb_lock); 13702205363dSJan Kara slot_num = ocfs2_node_num_to_slot(osb, node_num); 1371b4107950STao Ma trace_ocfs2_recovery_thread_node(node_num, slot_num); 13722205363dSJan Kara if (slot_num == -ENOENT) { 13732205363dSJan Kara status = 0; 13742205363dSJan Kara goto skip_recovery; 13752205363dSJan Kara } 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); 1402b4107950STao Ma trace_ocfs2_recovery_thread_end(status); 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 no one 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 kfree(rm_quota); 14442205363dSJan Kara 1445ccd979bdSMark Fasheh /* no one is callint kthread_stop() for us so the kthread() api 1446ccd979bdSMark Fasheh * requires that we call do_exit(). And it isn't exported, but 1447ccd979bdSMark Fasheh * complete_and_exit() seems to be a minimal wrapper around it. */ 1448ccd979bdSMark Fasheh complete_and_exit(NULL, status); 1449ccd979bdSMark Fasheh return status; 1450ccd979bdSMark Fasheh } 1451ccd979bdSMark Fasheh 1452ccd979bdSMark Fasheh void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) 1453ccd979bdSMark Fasheh { 1454c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1455b4107950STao Ma 1456b4107950STao Ma trace_ocfs2_recovery_thread(node_num, osb->node_num, 1457b4107950STao Ma osb->disable_recovery, osb->recovery_thread_task, 1458b4107950STao Ma osb->disable_recovery ? 1459b4107950STao Ma -1 : ocfs2_recovery_map_set(osb, node_num)); 1460b4107950STao Ma 1461ccd979bdSMark Fasheh if (osb->disable_recovery) 1462ccd979bdSMark Fasheh goto out; 1463ccd979bdSMark Fasheh 1464ccd979bdSMark Fasheh if (osb->recovery_thread_task) 1465ccd979bdSMark Fasheh goto out; 1466ccd979bdSMark Fasheh 1467ccd979bdSMark Fasheh osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, 146878427043SMark Fasheh "ocfs2rec"); 1469ccd979bdSMark Fasheh if (IS_ERR(osb->recovery_thread_task)) { 1470ccd979bdSMark Fasheh mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); 1471ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1472ccd979bdSMark Fasheh } 1473ccd979bdSMark Fasheh 1474ccd979bdSMark Fasheh out: 1475c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1476ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1477ccd979bdSMark Fasheh } 1478ccd979bdSMark Fasheh 1479539d8264SSunil Mushran static int ocfs2_read_journal_inode(struct ocfs2_super *osb, 1480539d8264SSunil Mushran int slot_num, 1481539d8264SSunil Mushran struct buffer_head **bh, 1482539d8264SSunil Mushran struct inode **ret_inode) 1483539d8264SSunil Mushran { 1484539d8264SSunil Mushran int status = -EACCES; 1485539d8264SSunil Mushran struct inode *inode = NULL; 1486539d8264SSunil Mushran 1487539d8264SSunil Mushran BUG_ON(slot_num >= osb->max_slots); 1488539d8264SSunil Mushran 1489539d8264SSunil Mushran inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1490539d8264SSunil Mushran slot_num); 1491539d8264SSunil Mushran if (!inode || is_bad_inode(inode)) { 1492539d8264SSunil Mushran mlog_errno(status); 1493539d8264SSunil Mushran goto bail; 1494539d8264SSunil Mushran } 1495539d8264SSunil Mushran SET_INODE_JOURNAL(inode); 1496539d8264SSunil Mushran 1497b657c95cSJoel Becker status = ocfs2_read_inode_block_full(inode, bh, OCFS2_BH_IGNORE_CACHE); 1498539d8264SSunil Mushran if (status < 0) { 1499539d8264SSunil Mushran mlog_errno(status); 1500539d8264SSunil Mushran goto bail; 1501539d8264SSunil Mushran } 1502539d8264SSunil Mushran 1503539d8264SSunil Mushran status = 0; 1504539d8264SSunil Mushran 1505539d8264SSunil Mushran bail: 1506539d8264SSunil Mushran if (inode) { 1507539d8264SSunil Mushran if (status || !ret_inode) 1508539d8264SSunil Mushran iput(inode); 1509539d8264SSunil Mushran else 1510539d8264SSunil Mushran *ret_inode = inode; 1511539d8264SSunil Mushran } 1512539d8264SSunil Mushran return status; 1513539d8264SSunil Mushran } 1514539d8264SSunil Mushran 1515ccd979bdSMark Fasheh /* Does the actual journal replay and marks the journal inode as 1516ccd979bdSMark Fasheh * clean. Will only replay if the journal inode is marked dirty. */ 1517ccd979bdSMark Fasheh static int ocfs2_replay_journal(struct ocfs2_super *osb, 1518ccd979bdSMark Fasheh int node_num, 1519ccd979bdSMark Fasheh int slot_num) 1520ccd979bdSMark Fasheh { 1521ccd979bdSMark Fasheh int status; 1522ccd979bdSMark Fasheh int got_lock = 0; 1523ccd979bdSMark Fasheh unsigned int flags; 1524ccd979bdSMark Fasheh struct inode *inode = NULL; 1525ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 1526ccd979bdSMark Fasheh journal_t *journal = NULL; 1527ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1528539d8264SSunil Mushran u32 slot_reco_gen; 1529ccd979bdSMark Fasheh 1530539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, slot_num, &bh, &inode); 1531539d8264SSunil Mushran if (status) { 1532ccd979bdSMark Fasheh mlog_errno(status); 1533ccd979bdSMark Fasheh goto done; 1534ccd979bdSMark Fasheh } 1535539d8264SSunil Mushran 1536539d8264SSunil Mushran fe = (struct ocfs2_dinode *)bh->b_data; 1537539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1538539d8264SSunil Mushran brelse(bh); 1539539d8264SSunil Mushran bh = NULL; 1540539d8264SSunil Mushran 1541539d8264SSunil Mushran /* 1542539d8264SSunil Mushran * As the fs recovery is asynchronous, there is a small chance that 1543539d8264SSunil Mushran * another node mounted (and recovered) the slot before the recovery 1544539d8264SSunil Mushran * thread could get the lock. To handle that, we dirty read the journal 1545539d8264SSunil Mushran * inode for that slot to get the recovery generation. If it is 1546539d8264SSunil Mushran * different than what we expected, the slot has been recovered. 1547539d8264SSunil Mushran * If not, it needs recovery. 1548539d8264SSunil Mushran */ 1549539d8264SSunil Mushran if (osb->slot_recovery_generations[slot_num] != slot_reco_gen) { 1550b4107950STao Ma trace_ocfs2_replay_journal_recovered(slot_num, 1551539d8264SSunil Mushran osb->slot_recovery_generations[slot_num], slot_reco_gen); 1552539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1553539d8264SSunil Mushran status = -EBUSY; 1554ccd979bdSMark Fasheh goto done; 1555ccd979bdSMark Fasheh } 1556539d8264SSunil Mushran 1557539d8264SSunil Mushran /* Continue with recovery as the journal has not yet been recovered */ 1558ccd979bdSMark Fasheh 1559e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 1560ccd979bdSMark Fasheh if (status < 0) { 1561b4107950STao Ma trace_ocfs2_replay_journal_lock_err(status); 1562ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 1563ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not lock journal!\n"); 1564ccd979bdSMark Fasheh goto done; 1565ccd979bdSMark Fasheh } 1566ccd979bdSMark Fasheh got_lock = 1; 1567ccd979bdSMark Fasheh 1568ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *) bh->b_data; 1569ccd979bdSMark Fasheh 1570ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1571539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1572ccd979bdSMark Fasheh 1573ccd979bdSMark Fasheh if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { 1574b4107950STao Ma trace_ocfs2_replay_journal_skip(node_num); 1575539d8264SSunil Mushran /* Refresh recovery generation for the slot */ 1576539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1577ccd979bdSMark Fasheh goto done; 1578ccd979bdSMark Fasheh } 1579ccd979bdSMark Fasheh 15809140db04SSrinivas Eeda /* we need to run complete recovery for offline orphan slots */ 15819140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 15829140db04SSrinivas Eeda 1583619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Begin replay journal (node %d, slot %d) on "\ 1584619c200dSSunil Mushran "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), 1585619c200dSSunil Mushran MINOR(osb->sb->s_dev)); 1586ccd979bdSMark Fasheh 1587ccd979bdSMark Fasheh OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); 1588ccd979bdSMark Fasheh 1589ccd979bdSMark Fasheh status = ocfs2_force_read_journal(inode); 1590ccd979bdSMark Fasheh if (status < 0) { 1591ccd979bdSMark Fasheh mlog_errno(status); 1592ccd979bdSMark Fasheh goto done; 1593ccd979bdSMark Fasheh } 1594ccd979bdSMark Fasheh 15952b4e30fbSJoel Becker journal = jbd2_journal_init_inode(inode); 1596ccd979bdSMark Fasheh if (journal == NULL) { 1597ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 1598ccd979bdSMark Fasheh status = -EIO; 1599ccd979bdSMark Fasheh goto done; 1600ccd979bdSMark Fasheh } 1601ccd979bdSMark Fasheh 16022b4e30fbSJoel Becker status = jbd2_journal_load(journal); 1603ccd979bdSMark Fasheh if (status < 0) { 1604ccd979bdSMark Fasheh mlog_errno(status); 1605ccd979bdSMark Fasheh if (!igrab(inode)) 1606ccd979bdSMark Fasheh BUG(); 16072b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1608ccd979bdSMark Fasheh goto done; 1609ccd979bdSMark Fasheh } 1610ccd979bdSMark Fasheh 1611ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal, slot_num); 1612ccd979bdSMark Fasheh 1613ccd979bdSMark Fasheh /* wipe the journal */ 16142b4e30fbSJoel Becker jbd2_journal_lock_updates(journal); 16152b4e30fbSJoel Becker status = jbd2_journal_flush(journal); 16162b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal); 1617ccd979bdSMark Fasheh if (status < 0) 1618ccd979bdSMark Fasheh mlog_errno(status); 1619ccd979bdSMark Fasheh 1620ccd979bdSMark Fasheh /* This will mark the node clean */ 1621ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1622ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 1623ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 1624ccd979bdSMark Fasheh 1625539d8264SSunil Mushran /* Increment recovery generation to indicate successful recovery */ 1626539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 1627539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = 1628539d8264SSunil Mushran ocfs2_get_recovery_generation(fe); 1629539d8264SSunil Mushran 163013723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 16318cb471e8SJoel Becker status = ocfs2_write_block(osb, bh, INODE_CACHE(inode)); 1632ccd979bdSMark Fasheh if (status < 0) 1633ccd979bdSMark Fasheh mlog_errno(status); 1634ccd979bdSMark Fasheh 1635ccd979bdSMark Fasheh if (!igrab(inode)) 1636ccd979bdSMark Fasheh BUG(); 1637ccd979bdSMark Fasheh 16382b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1639ccd979bdSMark Fasheh 1640619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: End replay journal (node %d, slot %d) on "\ 1641619c200dSSunil Mushran "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), 1642619c200dSSunil Mushran MINOR(osb->sb->s_dev)); 1643ccd979bdSMark Fasheh done: 1644ccd979bdSMark Fasheh /* drop the lock on this nodes journal */ 1645ccd979bdSMark Fasheh if (got_lock) 1646e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1647ccd979bdSMark Fasheh 1648ccd979bdSMark Fasheh if (inode) 1649ccd979bdSMark Fasheh iput(inode); 1650ccd979bdSMark Fasheh 1651ccd979bdSMark Fasheh brelse(bh); 1652ccd979bdSMark Fasheh 1653ccd979bdSMark Fasheh return status; 1654ccd979bdSMark Fasheh } 1655ccd979bdSMark Fasheh 1656ccd979bdSMark Fasheh /* 1657ccd979bdSMark Fasheh * Do the most important parts of node recovery: 1658ccd979bdSMark Fasheh * - Replay it's journal 1659ccd979bdSMark Fasheh * - Stamp a clean local allocator file 1660ccd979bdSMark Fasheh * - Stamp a clean truncate log 1661ccd979bdSMark Fasheh * - Mark the node clean 1662ccd979bdSMark Fasheh * 1663ccd979bdSMark Fasheh * If this function completes without error, a node in OCFS2 can be 1664ccd979bdSMark Fasheh * said to have been safely recovered. As a result, failure during the 1665ccd979bdSMark Fasheh * second part of a nodes recovery process (local alloc recovery) is 1666ccd979bdSMark Fasheh * far less concerning. 1667ccd979bdSMark Fasheh */ 1668ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 16692205363dSJan Kara int node_num, int slot_num) 1670ccd979bdSMark Fasheh { 1671ccd979bdSMark Fasheh int status = 0; 1672ccd979bdSMark Fasheh struct ocfs2_dinode *la_copy = NULL; 1673ccd979bdSMark Fasheh struct ocfs2_dinode *tl_copy = NULL; 1674ccd979bdSMark Fasheh 1675b4107950STao Ma trace_ocfs2_recover_node(node_num, slot_num, osb->node_num); 1676ccd979bdSMark Fasheh 1677ccd979bdSMark Fasheh /* Should not ever be called to recover ourselves -- in that 1678ccd979bdSMark Fasheh * case we should've called ocfs2_journal_load instead. */ 1679ebdec83bSEric Sesterhenn / snakebyte BUG_ON(osb->node_num == node_num); 1680ccd979bdSMark Fasheh 1681ccd979bdSMark Fasheh status = ocfs2_replay_journal(osb, node_num, slot_num); 1682ccd979bdSMark Fasheh if (status < 0) { 1683539d8264SSunil Mushran if (status == -EBUSY) { 1684b4107950STao Ma trace_ocfs2_recover_node_skip(slot_num, node_num); 1685539d8264SSunil Mushran status = 0; 1686539d8264SSunil Mushran goto done; 1687539d8264SSunil Mushran } 1688ccd979bdSMark Fasheh mlog_errno(status); 1689ccd979bdSMark Fasheh goto done; 1690ccd979bdSMark Fasheh } 1691ccd979bdSMark Fasheh 1692ccd979bdSMark Fasheh /* Stamp a clean local alloc file AFTER recovering the journal... */ 1693ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); 1694ccd979bdSMark Fasheh if (status < 0) { 1695ccd979bdSMark Fasheh mlog_errno(status); 1696ccd979bdSMark Fasheh goto done; 1697ccd979bdSMark Fasheh } 1698ccd979bdSMark Fasheh 1699ccd979bdSMark Fasheh /* An error from begin_truncate_log_recovery is not 1700ccd979bdSMark Fasheh * serious enough to warrant halting the rest of 1701ccd979bdSMark Fasheh * recovery. */ 1702ccd979bdSMark Fasheh status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); 1703ccd979bdSMark Fasheh if (status < 0) 1704ccd979bdSMark Fasheh mlog_errno(status); 1705ccd979bdSMark Fasheh 1706ccd979bdSMark Fasheh /* Likewise, this would be a strange but ultimately not so 1707ccd979bdSMark Fasheh * harmful place to get an error... */ 17088e8a4603SMark Fasheh status = ocfs2_clear_slot(osb, slot_num); 1709ccd979bdSMark Fasheh if (status < 0) 1710ccd979bdSMark Fasheh mlog_errno(status); 1711ccd979bdSMark Fasheh 1712ccd979bdSMark Fasheh /* This will kfree the memory pointed to by la_copy and tl_copy */ 1713ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, 17142205363dSJan Kara tl_copy, NULL); 1715ccd979bdSMark Fasheh 1716ccd979bdSMark Fasheh status = 0; 1717ccd979bdSMark Fasheh done: 1718ccd979bdSMark Fasheh 1719ccd979bdSMark Fasheh return status; 1720ccd979bdSMark Fasheh } 1721ccd979bdSMark Fasheh 1722ccd979bdSMark Fasheh /* Test node liveness by trylocking his journal. If we get the lock, 1723ccd979bdSMark Fasheh * we drop it here. Return 0 if we got the lock, -EAGAIN if node is 1724ccd979bdSMark Fasheh * still alive (we couldn't get the lock) and < 0 on error. */ 1725ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 1726ccd979bdSMark Fasheh int slot_num) 1727ccd979bdSMark Fasheh { 1728ccd979bdSMark Fasheh int status, flags; 1729ccd979bdSMark Fasheh struct inode *inode = NULL; 1730ccd979bdSMark Fasheh 1731ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1732ccd979bdSMark Fasheh slot_num); 1733ccd979bdSMark Fasheh if (inode == NULL) { 1734ccd979bdSMark Fasheh mlog(ML_ERROR, "access error\n"); 1735ccd979bdSMark Fasheh status = -EACCES; 1736ccd979bdSMark Fasheh goto bail; 1737ccd979bdSMark Fasheh } 1738ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1739ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 1740ccd979bdSMark Fasheh iput(inode); 1741ccd979bdSMark Fasheh inode = NULL; 1742ccd979bdSMark Fasheh status = -EACCES; 1743ccd979bdSMark Fasheh goto bail; 1744ccd979bdSMark Fasheh } 1745ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1746ccd979bdSMark Fasheh 1747ccd979bdSMark Fasheh flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; 1748e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, NULL, 1, flags); 1749ccd979bdSMark Fasheh if (status < 0) { 1750ccd979bdSMark Fasheh if (status != -EAGAIN) 1751ccd979bdSMark Fasheh mlog_errno(status); 1752ccd979bdSMark Fasheh goto bail; 1753ccd979bdSMark Fasheh } 1754ccd979bdSMark Fasheh 1755e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1756ccd979bdSMark Fasheh bail: 1757ccd979bdSMark Fasheh if (inode) 1758ccd979bdSMark Fasheh iput(inode); 1759ccd979bdSMark Fasheh 1760ccd979bdSMark Fasheh return status; 1761ccd979bdSMark Fasheh } 1762ccd979bdSMark Fasheh 1763ccd979bdSMark Fasheh /* Call this underneath ocfs2_super_lock. It also assumes that the 1764ccd979bdSMark Fasheh * slot info struct has been updated from disk. */ 1765ccd979bdSMark Fasheh int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) 1766ccd979bdSMark Fasheh { 1767d85b20e4SJoel Becker unsigned int node_num; 1768d85b20e4SJoel Becker int status, i; 1769a1af7d15SMark Fasheh u32 gen; 1770539d8264SSunil Mushran struct buffer_head *bh = NULL; 1771539d8264SSunil Mushran struct ocfs2_dinode *di; 1772ccd979bdSMark Fasheh 1773ccd979bdSMark Fasheh /* This is called with the super block cluster lock, so we 1774ccd979bdSMark Fasheh * know that the slot map can't change underneath us. */ 1775ccd979bdSMark Fasheh 1776d85b20e4SJoel Becker for (i = 0; i < osb->max_slots; i++) { 1777539d8264SSunil Mushran /* Read journal inode to get the recovery generation */ 1778539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, i, &bh, NULL); 1779539d8264SSunil Mushran if (status) { 1780539d8264SSunil Mushran mlog_errno(status); 1781539d8264SSunil Mushran goto bail; 1782539d8264SSunil Mushran } 1783539d8264SSunil Mushran di = (struct ocfs2_dinode *)bh->b_data; 1784a1af7d15SMark Fasheh gen = ocfs2_get_recovery_generation(di); 1785539d8264SSunil Mushran brelse(bh); 1786539d8264SSunil Mushran bh = NULL; 1787539d8264SSunil Mushran 1788a1af7d15SMark Fasheh spin_lock(&osb->osb_lock); 1789a1af7d15SMark Fasheh osb->slot_recovery_generations[i] = gen; 1790a1af7d15SMark Fasheh 1791b4107950STao Ma trace_ocfs2_mark_dead_nodes(i, 1792539d8264SSunil Mushran osb->slot_recovery_generations[i]); 1793539d8264SSunil Mushran 1794a1af7d15SMark Fasheh if (i == osb->slot_num) { 1795a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1796ccd979bdSMark Fasheh continue; 1797a1af7d15SMark Fasheh } 1798d85b20e4SJoel Becker 1799d85b20e4SJoel Becker status = ocfs2_slot_to_node_num_locked(osb, i, &node_num); 1800a1af7d15SMark Fasheh if (status == -ENOENT) { 1801a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1802ccd979bdSMark Fasheh continue; 1803a1af7d15SMark Fasheh } 1804ccd979bdSMark Fasheh 1805a1af7d15SMark Fasheh if (__ocfs2_recovery_map_test(osb, node_num)) { 1806a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1807ccd979bdSMark Fasheh continue; 1808a1af7d15SMark Fasheh } 1809d85b20e4SJoel Becker spin_unlock(&osb->osb_lock); 1810ccd979bdSMark Fasheh 1811ccd979bdSMark Fasheh /* Ok, we have a slot occupied by another node which 1812ccd979bdSMark Fasheh * is not in the recovery map. We trylock his journal 1813ccd979bdSMark Fasheh * file here to test if he's alive. */ 1814ccd979bdSMark Fasheh status = ocfs2_trylock_journal(osb, i); 1815ccd979bdSMark Fasheh if (!status) { 1816ccd979bdSMark Fasheh /* Since we're called from mount, we know that 1817ccd979bdSMark Fasheh * the recovery thread can't race us on 1818ccd979bdSMark Fasheh * setting / checking the recovery bits. */ 1819ccd979bdSMark Fasheh ocfs2_recovery_thread(osb, node_num); 1820ccd979bdSMark Fasheh } else if ((status < 0) && (status != -EAGAIN)) { 1821ccd979bdSMark Fasheh mlog_errno(status); 1822ccd979bdSMark Fasheh goto bail; 1823ccd979bdSMark Fasheh } 1824ccd979bdSMark Fasheh } 1825ccd979bdSMark Fasheh 1826ccd979bdSMark Fasheh status = 0; 1827ccd979bdSMark Fasheh bail: 1828ccd979bdSMark Fasheh return status; 1829ccd979bdSMark Fasheh } 1830ccd979bdSMark Fasheh 183183273932SSrinivas Eeda /* 183283273932SSrinivas Eeda * Scan timer should get fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT. Add some 183383273932SSrinivas Eeda * randomness to the timeout to minimize multple nodes firing the timer at the 183483273932SSrinivas Eeda * same time. 183583273932SSrinivas Eeda */ 183683273932SSrinivas Eeda static inline unsigned long ocfs2_orphan_scan_timeout(void) 183783273932SSrinivas Eeda { 183883273932SSrinivas Eeda unsigned long time; 183983273932SSrinivas Eeda 184083273932SSrinivas Eeda get_random_bytes(&time, sizeof(time)); 184183273932SSrinivas Eeda time = ORPHAN_SCAN_SCHEDULE_TIMEOUT + (time % 5000); 184283273932SSrinivas Eeda return msecs_to_jiffies(time); 184383273932SSrinivas Eeda } 184483273932SSrinivas Eeda 184583273932SSrinivas Eeda /* 184683273932SSrinivas Eeda * ocfs2_queue_orphan_scan calls ocfs2_queue_recovery_completion for 184783273932SSrinivas Eeda * every slot, queuing a recovery of the slot on the ocfs2_wq thread. This 184883273932SSrinivas Eeda * is done to catch any orphans that are left over in orphan directories. 184983273932SSrinivas Eeda * 1850a035bff6SSunil Mushran * It scans all slots, even ones that are in use. It does so to handle the 1851a035bff6SSunil Mushran * case described below: 1852a035bff6SSunil Mushran * 1853a035bff6SSunil Mushran * Node 1 has an inode it was using. The dentry went away due to memory 1854a035bff6SSunil Mushran * pressure. Node 1 closes the inode, but it's on the free list. The node 1855a035bff6SSunil Mushran * has the open lock. 1856a035bff6SSunil Mushran * Node 2 unlinks the inode. It grabs the dentry lock to notify others, 1857a035bff6SSunil Mushran * but node 1 has no dentry and doesn't get the message. It trylocks the 1858a035bff6SSunil Mushran * open lock, sees that another node has a PR, and does nothing. 1859a035bff6SSunil Mushran * Later node 2 runs its orphan dir. It igets the inode, trylocks the 1860a035bff6SSunil Mushran * open lock, sees the PR still, and does nothing. 1861a035bff6SSunil Mushran * Basically, we have to trigger an orphan iput on node 1. The only way 1862a035bff6SSunil Mushran * for this to happen is if node 1 runs node 2's orphan dir. 1863a035bff6SSunil Mushran * 186483273932SSrinivas Eeda * ocfs2_queue_orphan_scan gets called every ORPHAN_SCAN_SCHEDULE_TIMEOUT 186583273932SSrinivas Eeda * seconds. It gets an EX lock on os_lockres and checks sequence number 186683273932SSrinivas Eeda * stored in LVB. If the sequence number has changed, it means some other 186783273932SSrinivas Eeda * node has done the scan. This node skips the scan and tracks the 186883273932SSrinivas Eeda * sequence number. If the sequence number didn't change, it means a scan 186983273932SSrinivas Eeda * hasn't happened. The node queues a scan and increments the 187083273932SSrinivas Eeda * sequence number in the LVB. 187183273932SSrinivas Eeda */ 187283273932SSrinivas Eeda void ocfs2_queue_orphan_scan(struct ocfs2_super *osb) 187383273932SSrinivas Eeda { 187483273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 187583273932SSrinivas Eeda int status, i; 187683273932SSrinivas Eeda u32 seqno = 0; 187783273932SSrinivas Eeda 187883273932SSrinivas Eeda os = &osb->osb_orphan_scan; 187983273932SSrinivas Eeda 1880692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 1881692684e1SSunil Mushran goto out; 1882692684e1SSunil Mushran 1883b4107950STao Ma trace_ocfs2_queue_orphan_scan_begin(os->os_count, os->os_seqno, 1884b4107950STao Ma atomic_read(&os->os_state)); 1885b4107950STao Ma 1886df152c24SSunil Mushran status = ocfs2_orphan_scan_lock(osb, &seqno); 188783273932SSrinivas Eeda if (status < 0) { 188883273932SSrinivas Eeda if (status != -EAGAIN) 188983273932SSrinivas Eeda mlog_errno(status); 189083273932SSrinivas Eeda goto out; 189183273932SSrinivas Eeda } 189283273932SSrinivas Eeda 1893692684e1SSunil Mushran /* Do no queue the tasks if the volume is being umounted */ 1894692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 1895692684e1SSunil Mushran goto unlock; 1896692684e1SSunil Mushran 189783273932SSrinivas Eeda if (os->os_seqno != seqno) { 189883273932SSrinivas Eeda os->os_seqno = seqno; 189983273932SSrinivas Eeda goto unlock; 190083273932SSrinivas Eeda } 190183273932SSrinivas Eeda 190283273932SSrinivas Eeda for (i = 0; i < osb->max_slots; i++) 190383273932SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, i, NULL, NULL, 190483273932SSrinivas Eeda NULL); 190583273932SSrinivas Eeda /* 190683273932SSrinivas Eeda * We queued a recovery on orphan slots, increment the sequence 190783273932SSrinivas Eeda * number and update LVB so other node will skip the scan for a while 190883273932SSrinivas Eeda */ 190983273932SSrinivas Eeda seqno++; 191015633a22SSrinivas Eeda os->os_count++; 191115633a22SSrinivas Eeda os->os_scantime = CURRENT_TIME; 191283273932SSrinivas Eeda unlock: 1913df152c24SSunil Mushran ocfs2_orphan_scan_unlock(osb, seqno); 191483273932SSrinivas Eeda out: 1915b4107950STao Ma trace_ocfs2_queue_orphan_scan_end(os->os_count, os->os_seqno, 1916b4107950STao Ma atomic_read(&os->os_state)); 191783273932SSrinivas Eeda return; 191883273932SSrinivas Eeda } 191983273932SSrinivas Eeda 192083273932SSrinivas Eeda /* Worker task that gets fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT millsec */ 192183273932SSrinivas Eeda void ocfs2_orphan_scan_work(struct work_struct *work) 192283273932SSrinivas Eeda { 192383273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 192483273932SSrinivas Eeda struct ocfs2_super *osb; 192583273932SSrinivas Eeda 192683273932SSrinivas Eeda os = container_of(work, struct ocfs2_orphan_scan, 192783273932SSrinivas Eeda os_orphan_scan_work.work); 192883273932SSrinivas Eeda osb = os->os_osb; 192983273932SSrinivas Eeda 193083273932SSrinivas Eeda mutex_lock(&os->os_lock); 193183273932SSrinivas Eeda ocfs2_queue_orphan_scan(osb); 1932692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) 193340f165f4STao Ma queue_delayed_work(ocfs2_wq, &os->os_orphan_scan_work, 193483273932SSrinivas Eeda ocfs2_orphan_scan_timeout()); 193583273932SSrinivas Eeda mutex_unlock(&os->os_lock); 193683273932SSrinivas Eeda } 193783273932SSrinivas Eeda 193883273932SSrinivas Eeda void ocfs2_orphan_scan_stop(struct ocfs2_super *osb) 193983273932SSrinivas Eeda { 194083273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 194183273932SSrinivas Eeda 194283273932SSrinivas Eeda os = &osb->osb_orphan_scan; 1943df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) { 1944692684e1SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); 194583273932SSrinivas Eeda mutex_lock(&os->os_lock); 194683273932SSrinivas Eeda cancel_delayed_work(&os->os_orphan_scan_work); 194783273932SSrinivas Eeda mutex_unlock(&os->os_lock); 194883273932SSrinivas Eeda } 1949df152c24SSunil Mushran } 195083273932SSrinivas Eeda 1951df152c24SSunil Mushran void ocfs2_orphan_scan_init(struct ocfs2_super *osb) 195283273932SSrinivas Eeda { 195383273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 195483273932SSrinivas Eeda 195583273932SSrinivas Eeda os = &osb->osb_orphan_scan; 195683273932SSrinivas Eeda os->os_osb = osb; 195715633a22SSrinivas Eeda os->os_count = 0; 19583211949fSSunil Mushran os->os_seqno = 0; 195983273932SSrinivas Eeda mutex_init(&os->os_lock); 1960df152c24SSunil Mushran INIT_DELAYED_WORK(&os->os_orphan_scan_work, ocfs2_orphan_scan_work); 19618b712cd5SJeff Mahoney } 196283273932SSrinivas Eeda 19638b712cd5SJeff Mahoney void ocfs2_orphan_scan_start(struct ocfs2_super *osb) 19648b712cd5SJeff Mahoney { 19658b712cd5SJeff Mahoney struct ocfs2_orphan_scan *os; 19668b712cd5SJeff Mahoney 19678b712cd5SJeff Mahoney os = &osb->osb_orphan_scan; 19688b712cd5SJeff Mahoney os->os_scantime = CURRENT_TIME; 1969df152c24SSunil Mushran if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb)) 1970df152c24SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); 1971df152c24SSunil Mushran else { 1972df152c24SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_ACTIVE); 197340f165f4STao Ma queue_delayed_work(ocfs2_wq, &os->os_orphan_scan_work, 197483273932SSrinivas Eeda ocfs2_orphan_scan_timeout()); 1975df152c24SSunil Mushran } 197683273932SSrinivas Eeda } 197783273932SSrinivas Eeda 19785eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv { 19793704412bSAl Viro struct dir_context ctx; 19805eae5b96SMark Fasheh struct inode *head; 19815eae5b96SMark Fasheh struct ocfs2_super *osb; 19825eae5b96SMark Fasheh }; 19835eae5b96SMark Fasheh 19845eae5b96SMark Fasheh static int ocfs2_orphan_filldir(void *priv, const char *name, int name_len, 19855eae5b96SMark Fasheh loff_t pos, u64 ino, unsigned type) 19865eae5b96SMark Fasheh { 19875eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv *p = priv; 19885eae5b96SMark Fasheh struct inode *iter; 19895eae5b96SMark Fasheh 19905eae5b96SMark Fasheh if (name_len == 1 && !strncmp(".", name, 1)) 19915eae5b96SMark Fasheh return 0; 19925eae5b96SMark Fasheh if (name_len == 2 && !strncmp("..", name, 2)) 19935eae5b96SMark Fasheh return 0; 19945eae5b96SMark Fasheh 19955eae5b96SMark Fasheh /* Skip bad inodes so that recovery can continue */ 19965eae5b96SMark Fasheh iter = ocfs2_iget(p->osb, ino, 19975fa0613eSJan Kara OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0); 19985eae5b96SMark Fasheh if (IS_ERR(iter)) 19995eae5b96SMark Fasheh return 0; 20005eae5b96SMark Fasheh 2001b4107950STao Ma trace_ocfs2_orphan_filldir((unsigned long long)OCFS2_I(iter)->ip_blkno); 20025eae5b96SMark Fasheh /* No locking is required for the next_orphan queue as there 20035eae5b96SMark Fasheh * is only ever a single process doing orphan recovery. */ 20045eae5b96SMark Fasheh OCFS2_I(iter)->ip_next_orphan = p->head; 20055eae5b96SMark Fasheh p->head = iter; 20065eae5b96SMark Fasheh 20075eae5b96SMark Fasheh return 0; 20085eae5b96SMark Fasheh } 20095eae5b96SMark Fasheh 2010b4df6ed8SMark Fasheh static int ocfs2_queue_orphans(struct ocfs2_super *osb, 2011b4df6ed8SMark Fasheh int slot, 2012b4df6ed8SMark Fasheh struct inode **head) 2013ccd979bdSMark Fasheh { 2014b4df6ed8SMark Fasheh int status; 2015ccd979bdSMark Fasheh struct inode *orphan_dir_inode = NULL; 20163704412bSAl Viro struct ocfs2_orphan_filldir_priv priv = { 20173704412bSAl Viro .ctx.actor = ocfs2_orphan_filldir, 20183704412bSAl Viro .osb = osb, 20193704412bSAl Viro .head = *head 20203704412bSAl Viro }; 2021ccd979bdSMark Fasheh 2022ccd979bdSMark Fasheh orphan_dir_inode = ocfs2_get_system_file_inode(osb, 2023ccd979bdSMark Fasheh ORPHAN_DIR_SYSTEM_INODE, 2024ccd979bdSMark Fasheh slot); 2025ccd979bdSMark Fasheh if (!orphan_dir_inode) { 2026ccd979bdSMark Fasheh status = -ENOENT; 2027ccd979bdSMark Fasheh mlog_errno(status); 2028b4df6ed8SMark Fasheh return status; 2029ccd979bdSMark Fasheh } 2030ccd979bdSMark Fasheh 20311b1dcc1bSJes Sorensen mutex_lock(&orphan_dir_inode->i_mutex); 2032e63aecb6SMark Fasheh status = ocfs2_inode_lock(orphan_dir_inode, NULL, 0); 2033ccd979bdSMark Fasheh if (status < 0) { 2034ccd979bdSMark Fasheh mlog_errno(status); 2035ccd979bdSMark Fasheh goto out; 2036ccd979bdSMark Fasheh } 2037ccd979bdSMark Fasheh 20383704412bSAl Viro status = ocfs2_dir_foreach(orphan_dir_inode, &priv.ctx); 20395eae5b96SMark Fasheh if (status) { 2040ccd979bdSMark Fasheh mlog_errno(status); 2041a86370fbSMark Fasheh goto out_cluster; 2042ccd979bdSMark Fasheh } 2043ccd979bdSMark Fasheh 20445eae5b96SMark Fasheh *head = priv.head; 2045ccd979bdSMark Fasheh 2046a86370fbSMark Fasheh out_cluster: 2047e63aecb6SMark Fasheh ocfs2_inode_unlock(orphan_dir_inode, 0); 2048b4df6ed8SMark Fasheh out: 2049b4df6ed8SMark Fasheh mutex_unlock(&orphan_dir_inode->i_mutex); 2050ccd979bdSMark Fasheh iput(orphan_dir_inode); 2051b4df6ed8SMark Fasheh return status; 2052b4df6ed8SMark Fasheh } 2053b4df6ed8SMark Fasheh 2054b4df6ed8SMark Fasheh static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb, 2055b4df6ed8SMark Fasheh int slot) 2056b4df6ed8SMark Fasheh { 2057b4df6ed8SMark Fasheh int ret; 2058b4df6ed8SMark Fasheh 2059b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2060b4df6ed8SMark Fasheh ret = !osb->osb_orphan_wipes[slot]; 2061b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2062b4df6ed8SMark Fasheh return ret; 2063b4df6ed8SMark Fasheh } 2064b4df6ed8SMark Fasheh 2065b4df6ed8SMark Fasheh static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb, 2066b4df6ed8SMark Fasheh int slot) 2067b4df6ed8SMark Fasheh { 2068b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2069b4df6ed8SMark Fasheh /* Mark ourselves such that new processes in delete_inode() 2070b4df6ed8SMark Fasheh * know to quit early. */ 2071b4df6ed8SMark Fasheh ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 2072b4df6ed8SMark Fasheh while (osb->osb_orphan_wipes[slot]) { 2073b4df6ed8SMark Fasheh /* If any processes are already in the middle of an 2074b4df6ed8SMark Fasheh * orphan wipe on this dir, then we need to wait for 2075b4df6ed8SMark Fasheh * them. */ 2076b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2077b4df6ed8SMark Fasheh wait_event_interruptible(osb->osb_wipe_event, 2078b4df6ed8SMark Fasheh ocfs2_orphan_recovery_can_continue(osb, slot)); 2079b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2080b4df6ed8SMark Fasheh } 2081b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2082b4df6ed8SMark Fasheh } 2083b4df6ed8SMark Fasheh 2084b4df6ed8SMark Fasheh static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb, 2085b4df6ed8SMark Fasheh int slot) 2086b4df6ed8SMark Fasheh { 2087b4df6ed8SMark Fasheh ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 2088b4df6ed8SMark Fasheh } 2089b4df6ed8SMark Fasheh 2090b4df6ed8SMark Fasheh /* 2091b4df6ed8SMark Fasheh * Orphan recovery. Each mounted node has it's own orphan dir which we 2092b4df6ed8SMark Fasheh * must run during recovery. Our strategy here is to build a list of 2093b4df6ed8SMark Fasheh * the inodes in the orphan dir and iget/iput them. The VFS does 2094b4df6ed8SMark Fasheh * (most) of the rest of the work. 2095b4df6ed8SMark Fasheh * 2096b4df6ed8SMark Fasheh * Orphan recovery can happen at any time, not just mount so we have a 2097b4df6ed8SMark Fasheh * couple of extra considerations. 2098b4df6ed8SMark Fasheh * 2099b4df6ed8SMark Fasheh * - We grab as many inodes as we can under the orphan dir lock - 2100b4df6ed8SMark Fasheh * doing iget() outside the orphan dir risks getting a reference on 2101b4df6ed8SMark Fasheh * an invalid inode. 2102b4df6ed8SMark Fasheh * - We must be sure not to deadlock with other processes on the 2103b4df6ed8SMark Fasheh * system wanting to run delete_inode(). This can happen when they go 2104b4df6ed8SMark Fasheh * to lock the orphan dir and the orphan recovery process attempts to 2105b4df6ed8SMark Fasheh * iget() inside the orphan dir lock. This can be avoided by 2106b4df6ed8SMark Fasheh * advertising our state to ocfs2_delete_inode(). 2107b4df6ed8SMark Fasheh */ 2108b4df6ed8SMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 2109b4df6ed8SMark Fasheh int slot) 2110b4df6ed8SMark Fasheh { 2111b4df6ed8SMark Fasheh int ret = 0; 2112b4df6ed8SMark Fasheh struct inode *inode = NULL; 2113b4df6ed8SMark Fasheh struct inode *iter; 2114b4df6ed8SMark Fasheh struct ocfs2_inode_info *oi; 2115b4df6ed8SMark Fasheh 2116b4107950STao Ma trace_ocfs2_recover_orphans(slot); 2117b4df6ed8SMark Fasheh 2118b4df6ed8SMark Fasheh ocfs2_mark_recovering_orphan_dir(osb, slot); 2119b4df6ed8SMark Fasheh ret = ocfs2_queue_orphans(osb, slot, &inode); 2120b4df6ed8SMark Fasheh ocfs2_clear_recovering_orphan_dir(osb, slot); 2121b4df6ed8SMark Fasheh 2122b4df6ed8SMark Fasheh /* Error here should be noted, but we want to continue with as 2123b4df6ed8SMark Fasheh * many queued inodes as we've got. */ 2124b4df6ed8SMark Fasheh if (ret) 2125b4df6ed8SMark Fasheh mlog_errno(ret); 2126ccd979bdSMark Fasheh 2127ccd979bdSMark Fasheh while (inode) { 2128ccd979bdSMark Fasheh oi = OCFS2_I(inode); 2129b4107950STao Ma trace_ocfs2_recover_orphans_iput( 2130b4107950STao Ma (unsigned long long)oi->ip_blkno); 2131ccd979bdSMark Fasheh 2132ccd979bdSMark Fasheh iter = oi->ip_next_orphan; 2133ccd979bdSMark Fasheh 2134ccd979bdSMark Fasheh spin_lock(&oi->ip_lock); 213534d024f8SMark Fasheh /* The remote delete code may have set these on the 213634d024f8SMark Fasheh * assumption that the other node would wipe them 213734d024f8SMark Fasheh * successfully. If they are still in the node's 213834d024f8SMark Fasheh * orphan dir, we need to reset that state. */ 2139ccd979bdSMark Fasheh oi->ip_flags &= ~(OCFS2_INODE_DELETED|OCFS2_INODE_SKIP_DELETE); 2140ccd979bdSMark Fasheh 2141ccd979bdSMark Fasheh /* Set the proper information to get us going into 2142ccd979bdSMark Fasheh * ocfs2_delete_inode. */ 2143ccd979bdSMark Fasheh oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; 2144ccd979bdSMark Fasheh spin_unlock(&oi->ip_lock); 2145ccd979bdSMark Fasheh 2146ccd979bdSMark Fasheh iput(inode); 2147ccd979bdSMark Fasheh 2148ccd979bdSMark Fasheh inode = iter; 2149ccd979bdSMark Fasheh } 2150ccd979bdSMark Fasheh 2151b4df6ed8SMark Fasheh return ret; 2152ccd979bdSMark Fasheh } 2153ccd979bdSMark Fasheh 215419ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota) 2155ccd979bdSMark Fasheh { 2156ccd979bdSMark Fasheh /* This check is good because ocfs2 will wait on our recovery 2157ccd979bdSMark Fasheh * thread before changing it to something other than MOUNTED 2158ccd979bdSMark Fasheh * or DISABLED. */ 2159ccd979bdSMark Fasheh wait_event(osb->osb_mount_event, 216019ece546SJan Kara (!quota && atomic_read(&osb->vol_state) == VOLUME_MOUNTED) || 216119ece546SJan Kara atomic_read(&osb->vol_state) == VOLUME_MOUNTED_QUOTAS || 2162ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_DISABLED); 2163ccd979bdSMark Fasheh 2164ccd979bdSMark Fasheh /* If there's an error on mount, then we may never get to the 2165ccd979bdSMark Fasheh * MOUNTED flag, but this is set right before 2166ccd979bdSMark Fasheh * dismount_volume() so we can trust it. */ 2167ccd979bdSMark Fasheh if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) { 2168b4107950STao Ma trace_ocfs2_wait_on_mount(VOLUME_DISABLED); 2169ccd979bdSMark Fasheh mlog(0, "mount error, exiting!\n"); 2170ccd979bdSMark Fasheh return -EBUSY; 2171ccd979bdSMark Fasheh } 2172ccd979bdSMark Fasheh 2173ccd979bdSMark Fasheh return 0; 2174ccd979bdSMark Fasheh } 2175ccd979bdSMark Fasheh 2176ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg) 2177ccd979bdSMark Fasheh { 2178ccd979bdSMark Fasheh int status; 2179ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 2180ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 2181ccd979bdSMark Fasheh 2182ccd979bdSMark Fasheh /* we can trust j_num_trans here because _should_stop() is only set in 2183ccd979bdSMark Fasheh * shutdown and nobody other than ourselves should be able to start 2184ccd979bdSMark Fasheh * transactions. committing on shutdown might take a few iterations 2185ccd979bdSMark Fasheh * as final transactions put deleted inodes on the list */ 2186ccd979bdSMark Fasheh while (!(kthread_should_stop() && 2187ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) == 0)) { 2188ccd979bdSMark Fasheh 2189745ae8baSMark Fasheh wait_event_interruptible(osb->checkpoint_event, 2190ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) 2191745ae8baSMark Fasheh || kthread_should_stop()); 2192ccd979bdSMark Fasheh 2193ccd979bdSMark Fasheh status = ocfs2_commit_cache(osb); 2194ccd979bdSMark Fasheh if (status < 0) 2195ccd979bdSMark Fasheh mlog_errno(status); 2196ccd979bdSMark Fasheh 2197ccd979bdSMark Fasheh if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ 2198ccd979bdSMark Fasheh mlog(ML_KTHREAD, 2199ccd979bdSMark Fasheh "commit_thread: %u transactions pending on " 2200ccd979bdSMark Fasheh "shutdown\n", 2201ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans)); 2202ccd979bdSMark Fasheh } 2203ccd979bdSMark Fasheh } 2204ccd979bdSMark Fasheh 2205ccd979bdSMark Fasheh return 0; 2206ccd979bdSMark Fasheh } 2207ccd979bdSMark Fasheh 2208539d8264SSunil Mushran /* Reads all the journal inodes without taking any cluster locks. Used 2209539d8264SSunil Mushran * for hard readonly access to determine whether any journal requires 2210539d8264SSunil Mushran * recovery. Also used to refresh the recovery generation numbers after 2211539d8264SSunil Mushran * a journal has been recovered by another node. 2212539d8264SSunil Mushran */ 2213ccd979bdSMark Fasheh int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) 2214ccd979bdSMark Fasheh { 2215ccd979bdSMark Fasheh int ret = 0; 2216ccd979bdSMark Fasheh unsigned int slot; 2217539d8264SSunil Mushran struct buffer_head *di_bh = NULL; 2218ccd979bdSMark Fasheh struct ocfs2_dinode *di; 2219539d8264SSunil Mushran int journal_dirty = 0; 2220ccd979bdSMark Fasheh 2221ccd979bdSMark Fasheh for(slot = 0; slot < osb->max_slots; slot++) { 2222539d8264SSunil Mushran ret = ocfs2_read_journal_inode(osb, slot, &di_bh, NULL); 2223539d8264SSunil Mushran if (ret) { 2224ccd979bdSMark Fasheh mlog_errno(ret); 2225ccd979bdSMark Fasheh goto out; 2226ccd979bdSMark Fasheh } 2227ccd979bdSMark Fasheh 2228ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) di_bh->b_data; 2229ccd979bdSMark Fasheh 2230539d8264SSunil Mushran osb->slot_recovery_generations[slot] = 2231539d8264SSunil Mushran ocfs2_get_recovery_generation(di); 2232539d8264SSunil Mushran 2233ccd979bdSMark Fasheh if (le32_to_cpu(di->id1.journal1.ij_flags) & 2234ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL) 2235539d8264SSunil Mushran journal_dirty = 1; 2236ccd979bdSMark Fasheh 2237ccd979bdSMark Fasheh brelse(di_bh); 2238539d8264SSunil Mushran di_bh = NULL; 2239ccd979bdSMark Fasheh } 2240ccd979bdSMark Fasheh 2241ccd979bdSMark Fasheh out: 2242539d8264SSunil Mushran if (journal_dirty) 2243539d8264SSunil Mushran ret = -EROFS; 2244ccd979bdSMark Fasheh return ret; 2245ccd979bdSMark Fasheh } 2246