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> 3355b465b6SJoseph Qi #include <linux/delay.h> 34ccd979bdSMark Fasheh 35ccd979bdSMark Fasheh #include <cluster/masklog.h> 36ccd979bdSMark Fasheh 37ccd979bdSMark Fasheh #include "ocfs2.h" 38ccd979bdSMark Fasheh 39ccd979bdSMark Fasheh #include "alloc.h" 4050655ae9SJoel Becker #include "blockcheck.h" 41316f4b9fSMark Fasheh #include "dir.h" 42ccd979bdSMark Fasheh #include "dlmglue.h" 43ccd979bdSMark Fasheh #include "extent_map.h" 44ccd979bdSMark Fasheh #include "heartbeat.h" 45ccd979bdSMark Fasheh #include "inode.h" 46ccd979bdSMark Fasheh #include "journal.h" 47ccd979bdSMark Fasheh #include "localalloc.h" 48ccd979bdSMark Fasheh #include "slot_map.h" 49ccd979bdSMark Fasheh #include "super.h" 50ccd979bdSMark Fasheh #include "sysfile.h" 510cf2f763SJoel Becker #include "uptodate.h" 522205363dSJan Kara #include "quota.h" 53ed460cffSJoseph Qi #include "file.h" 54ed460cffSJoseph Qi #include "namei.h" 55ccd979bdSMark Fasheh 56ccd979bdSMark Fasheh #include "buffer_head_io.h" 57b4107950STao Ma #include "ocfs2_trace.h" 58ccd979bdSMark Fasheh 5934af946aSIngo Molnar DEFINE_SPINLOCK(trans_inc_lock); 60ccd979bdSMark Fasheh 6183273932SSrinivas Eeda #define ORPHAN_SCAN_SCHEDULE_TIMEOUT 300000 6283273932SSrinivas Eeda 63ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode); 64ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 652205363dSJan Kara int node_num, int slot_num); 66ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg); 67ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb); 6819ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota); 69ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 70539d8264SSunil Mushran int dirty, int replayed); 71ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 72ccd979bdSMark Fasheh int slot_num); 73ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 74ed460cffSJoseph Qi int slot, 75ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type); 76ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg); 779140db04SSrinivas Eeda static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 789140db04SSrinivas Eeda int slot_num, 799140db04SSrinivas Eeda struct ocfs2_dinode *la_dinode, 809140db04SSrinivas Eeda struct ocfs2_dinode *tl_dinode, 81ed460cffSJoseph Qi struct ocfs2_quota_recovery *qrec, 82ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type); 83ccd979bdSMark Fasheh 8419ece546SJan Kara static inline int ocfs2_wait_on_mount(struct ocfs2_super *osb) 8519ece546SJan Kara { 8619ece546SJan Kara return __ocfs2_wait_on_mount(osb, 0); 8719ece546SJan Kara } 8819ece546SJan Kara 8919ece546SJan Kara static inline int ocfs2_wait_on_quotas(struct ocfs2_super *osb) 9019ece546SJan Kara { 9119ece546SJan Kara return __ocfs2_wait_on_mount(osb, 1); 9219ece546SJan Kara } 9319ece546SJan Kara 949140db04SSrinivas Eeda /* 959140db04SSrinivas Eeda * This replay_map is to track online/offline slots, so we could recover 969140db04SSrinivas Eeda * offline slots during recovery and mount 979140db04SSrinivas Eeda */ 989140db04SSrinivas Eeda 999140db04SSrinivas Eeda enum ocfs2_replay_state { 1009140db04SSrinivas Eeda REPLAY_UNNEEDED = 0, /* Replay is not needed, so ignore this map */ 1019140db04SSrinivas Eeda REPLAY_NEEDED, /* Replay slots marked in rm_replay_slots */ 1029140db04SSrinivas Eeda REPLAY_DONE /* Replay was already queued */ 1039140db04SSrinivas Eeda }; 1049140db04SSrinivas Eeda 1059140db04SSrinivas Eeda struct ocfs2_replay_map { 1069140db04SSrinivas Eeda unsigned int rm_slots; 1079140db04SSrinivas Eeda enum ocfs2_replay_state rm_state; 1089140db04SSrinivas Eeda unsigned char rm_replay_slots[0]; 1099140db04SSrinivas Eeda }; 1109140db04SSrinivas Eeda 111b519ea6dSJoseph Qi static void ocfs2_replay_map_set_state(struct ocfs2_super *osb, int state) 1129140db04SSrinivas Eeda { 1139140db04SSrinivas Eeda if (!osb->replay_map) 1149140db04SSrinivas Eeda return; 1159140db04SSrinivas Eeda 1169140db04SSrinivas Eeda /* If we've already queued the replay, we don't have any more to do */ 1179140db04SSrinivas Eeda if (osb->replay_map->rm_state == REPLAY_DONE) 1189140db04SSrinivas Eeda return; 1199140db04SSrinivas Eeda 1209140db04SSrinivas Eeda osb->replay_map->rm_state = state; 1219140db04SSrinivas Eeda } 1229140db04SSrinivas Eeda 1239140db04SSrinivas Eeda int ocfs2_compute_replay_slots(struct ocfs2_super *osb) 1249140db04SSrinivas Eeda { 1259140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map; 1269140db04SSrinivas Eeda int i, node_num; 1279140db04SSrinivas Eeda 1289140db04SSrinivas Eeda /* If replay map is already set, we don't do it again */ 1299140db04SSrinivas Eeda if (osb->replay_map) 1309140db04SSrinivas Eeda return 0; 1319140db04SSrinivas Eeda 1329140db04SSrinivas Eeda replay_map = kzalloc(sizeof(struct ocfs2_replay_map) + 1339140db04SSrinivas Eeda (osb->max_slots * sizeof(char)), GFP_KERNEL); 1349140db04SSrinivas Eeda 1359140db04SSrinivas Eeda if (!replay_map) { 1369140db04SSrinivas Eeda mlog_errno(-ENOMEM); 1379140db04SSrinivas Eeda return -ENOMEM; 1389140db04SSrinivas Eeda } 1399140db04SSrinivas Eeda 1409140db04SSrinivas Eeda spin_lock(&osb->osb_lock); 1419140db04SSrinivas Eeda 1429140db04SSrinivas Eeda replay_map->rm_slots = osb->max_slots; 1439140db04SSrinivas Eeda replay_map->rm_state = REPLAY_UNNEEDED; 1449140db04SSrinivas Eeda 1459140db04SSrinivas Eeda /* set rm_replay_slots for offline slot(s) */ 1469140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) { 1479140db04SSrinivas Eeda if (ocfs2_slot_to_node_num_locked(osb, i, &node_num) == -ENOENT) 1489140db04SSrinivas Eeda replay_map->rm_replay_slots[i] = 1; 1499140db04SSrinivas Eeda } 1509140db04SSrinivas Eeda 1519140db04SSrinivas Eeda osb->replay_map = replay_map; 1529140db04SSrinivas Eeda spin_unlock(&osb->osb_lock); 1539140db04SSrinivas Eeda return 0; 1549140db04SSrinivas Eeda } 1559140db04SSrinivas Eeda 156b519ea6dSJoseph Qi static void ocfs2_queue_replay_slots(struct ocfs2_super *osb, 157ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 1589140db04SSrinivas Eeda { 1599140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1609140db04SSrinivas Eeda int i; 1619140db04SSrinivas Eeda 1629140db04SSrinivas Eeda if (!replay_map) 1639140db04SSrinivas Eeda return; 1649140db04SSrinivas Eeda 1659140db04SSrinivas Eeda if (replay_map->rm_state != REPLAY_NEEDED) 1669140db04SSrinivas Eeda return; 1679140db04SSrinivas Eeda 1689140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) 1699140db04SSrinivas Eeda if (replay_map->rm_replay_slots[i]) 1709140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, i, NULL, 171ed460cffSJoseph Qi NULL, NULL, 172ed460cffSJoseph Qi orphan_reco_type); 1739140db04SSrinivas Eeda replay_map->rm_state = REPLAY_DONE; 1749140db04SSrinivas Eeda } 1759140db04SSrinivas Eeda 176b519ea6dSJoseph Qi static void ocfs2_free_replay_slots(struct ocfs2_super *osb) 1779140db04SSrinivas Eeda { 1789140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1799140db04SSrinivas Eeda 1809140db04SSrinivas Eeda if (!osb->replay_map) 1819140db04SSrinivas Eeda return; 1829140db04SSrinivas Eeda 1839140db04SSrinivas Eeda kfree(replay_map); 1849140db04SSrinivas Eeda osb->replay_map = NULL; 1859140db04SSrinivas Eeda } 1869140db04SSrinivas Eeda 187553abd04SJoel Becker int ocfs2_recovery_init(struct ocfs2_super *osb) 188553abd04SJoel Becker { 189553abd04SJoel Becker struct ocfs2_recovery_map *rm; 190553abd04SJoel Becker 191553abd04SJoel Becker mutex_init(&osb->recovery_lock); 192553abd04SJoel Becker osb->disable_recovery = 0; 193553abd04SJoel Becker osb->recovery_thread_task = NULL; 194553abd04SJoel Becker init_waitqueue_head(&osb->recovery_event); 195553abd04SJoel Becker 196553abd04SJoel Becker rm = kzalloc(sizeof(struct ocfs2_recovery_map) + 197553abd04SJoel Becker osb->max_slots * sizeof(unsigned int), 198553abd04SJoel Becker GFP_KERNEL); 199553abd04SJoel Becker if (!rm) { 200553abd04SJoel Becker mlog_errno(-ENOMEM); 201553abd04SJoel Becker return -ENOMEM; 202553abd04SJoel Becker } 203553abd04SJoel Becker 204553abd04SJoel Becker rm->rm_entries = (unsigned int *)((char *)rm + 205553abd04SJoel Becker sizeof(struct ocfs2_recovery_map)); 206553abd04SJoel Becker osb->recovery_map = rm; 207553abd04SJoel Becker 208553abd04SJoel Becker return 0; 209553abd04SJoel Becker } 210553abd04SJoel Becker 211553abd04SJoel Becker /* we can't grab the goofy sem lock from inside wait_event, so we use 212553abd04SJoel Becker * memory barriers to make sure that we'll see the null task before 213553abd04SJoel Becker * being woken up */ 214553abd04SJoel Becker static int ocfs2_recovery_thread_running(struct ocfs2_super *osb) 215553abd04SJoel Becker { 216553abd04SJoel Becker mb(); 217553abd04SJoel Becker return osb->recovery_thread_task != NULL; 218553abd04SJoel Becker } 219553abd04SJoel Becker 220553abd04SJoel Becker void ocfs2_recovery_exit(struct ocfs2_super *osb) 221553abd04SJoel Becker { 222553abd04SJoel Becker struct ocfs2_recovery_map *rm; 223553abd04SJoel Becker 224553abd04SJoel Becker /* disable any new recovery threads and wait for any currently 225553abd04SJoel Becker * running ones to exit. Do this before setting the vol_state. */ 226553abd04SJoel Becker mutex_lock(&osb->recovery_lock); 227553abd04SJoel Becker osb->disable_recovery = 1; 228553abd04SJoel Becker mutex_unlock(&osb->recovery_lock); 229553abd04SJoel Becker wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); 230553abd04SJoel Becker 231553abd04SJoel Becker /* At this point, we know that no more recovery threads can be 232553abd04SJoel Becker * launched, so wait for any recovery completion work to 233553abd04SJoel Becker * complete. */ 234553abd04SJoel Becker flush_workqueue(ocfs2_wq); 235553abd04SJoel Becker 236553abd04SJoel Becker /* 237553abd04SJoel Becker * Now that recovery is shut down, and the osb is about to be 238553abd04SJoel Becker * freed, the osb_lock is not taken here. 239553abd04SJoel Becker */ 240553abd04SJoel Becker rm = osb->recovery_map; 241553abd04SJoel Becker /* XXX: Should we bug if there are dirty entries? */ 242553abd04SJoel Becker 243553abd04SJoel Becker kfree(rm); 244553abd04SJoel Becker } 245553abd04SJoel Becker 246553abd04SJoel Becker static int __ocfs2_recovery_map_test(struct ocfs2_super *osb, 247553abd04SJoel Becker unsigned int node_num) 248553abd04SJoel Becker { 249553abd04SJoel Becker int i; 250553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 251553abd04SJoel Becker 252553abd04SJoel Becker assert_spin_locked(&osb->osb_lock); 253553abd04SJoel Becker 254553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 255553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 256553abd04SJoel Becker return 1; 257553abd04SJoel Becker } 258553abd04SJoel Becker 259553abd04SJoel Becker return 0; 260553abd04SJoel Becker } 261553abd04SJoel Becker 262553abd04SJoel Becker /* Behaves like test-and-set. Returns the previous value */ 263553abd04SJoel Becker static int ocfs2_recovery_map_set(struct ocfs2_super *osb, 264553abd04SJoel Becker unsigned int node_num) 265553abd04SJoel Becker { 266553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 267553abd04SJoel Becker 268553abd04SJoel Becker spin_lock(&osb->osb_lock); 269553abd04SJoel Becker if (__ocfs2_recovery_map_test(osb, node_num)) { 270553abd04SJoel Becker spin_unlock(&osb->osb_lock); 271553abd04SJoel Becker return 1; 272553abd04SJoel Becker } 273553abd04SJoel Becker 274553abd04SJoel Becker /* XXX: Can this be exploited? Not from o2dlm... */ 275553abd04SJoel Becker BUG_ON(rm->rm_used >= osb->max_slots); 276553abd04SJoel Becker 277553abd04SJoel Becker rm->rm_entries[rm->rm_used] = node_num; 278553abd04SJoel Becker rm->rm_used++; 279553abd04SJoel Becker spin_unlock(&osb->osb_lock); 280553abd04SJoel Becker 281553abd04SJoel Becker return 0; 282553abd04SJoel Becker } 283553abd04SJoel Becker 284553abd04SJoel Becker static void ocfs2_recovery_map_clear(struct ocfs2_super *osb, 285553abd04SJoel Becker unsigned int node_num) 286553abd04SJoel Becker { 287553abd04SJoel Becker int i; 288553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 289553abd04SJoel Becker 290553abd04SJoel Becker spin_lock(&osb->osb_lock); 291553abd04SJoel Becker 292553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 293553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 294553abd04SJoel Becker break; 295553abd04SJoel Becker } 296553abd04SJoel Becker 297553abd04SJoel Becker if (i < rm->rm_used) { 298553abd04SJoel Becker /* XXX: be careful with the pointer math */ 299553abd04SJoel Becker memmove(&(rm->rm_entries[i]), &(rm->rm_entries[i + 1]), 300553abd04SJoel Becker (rm->rm_used - i - 1) * sizeof(unsigned int)); 301553abd04SJoel Becker rm->rm_used--; 302553abd04SJoel Becker } 303553abd04SJoel Becker 304553abd04SJoel Becker spin_unlock(&osb->osb_lock); 305553abd04SJoel Becker } 306553abd04SJoel Becker 307ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb) 308ccd979bdSMark Fasheh { 309ccd979bdSMark Fasheh int status = 0; 310ccd979bdSMark Fasheh unsigned int flushed; 311ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 312ccd979bdSMark Fasheh 313ccd979bdSMark Fasheh journal = osb->journal; 314ccd979bdSMark Fasheh 315ccd979bdSMark Fasheh /* Flush all pending commits and checkpoint the journal. */ 316ccd979bdSMark Fasheh down_write(&journal->j_trans_barrier); 317ccd979bdSMark Fasheh 318b4107950STao Ma flushed = atomic_read(&journal->j_num_trans); 319b4107950STao Ma trace_ocfs2_commit_cache_begin(flushed); 320b4107950STao Ma if (flushed == 0) { 321ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 322ccd979bdSMark Fasheh goto finally; 323ccd979bdSMark Fasheh } 324ccd979bdSMark Fasheh 3252b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 3262b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 3272b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 328ccd979bdSMark Fasheh if (status < 0) { 329ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 330ccd979bdSMark Fasheh mlog_errno(status); 331ccd979bdSMark Fasheh goto finally; 332ccd979bdSMark Fasheh } 333ccd979bdSMark Fasheh 334f9c57adaSTao Ma ocfs2_inc_trans_id(journal); 335ccd979bdSMark Fasheh 336ccd979bdSMark Fasheh flushed = atomic_read(&journal->j_num_trans); 337ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 338ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 339ccd979bdSMark Fasheh 340b4107950STao Ma trace_ocfs2_commit_cache_end(journal->j_trans_id, flushed); 341ccd979bdSMark Fasheh 34234d024f8SMark Fasheh ocfs2_wake_downconvert_thread(osb); 343ccd979bdSMark Fasheh wake_up(&journal->j_checkpointed); 344ccd979bdSMark Fasheh finally: 345ccd979bdSMark Fasheh return status; 346ccd979bdSMark Fasheh } 347ccd979bdSMark Fasheh 3481fabe148SMark Fasheh handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs) 349ccd979bdSMark Fasheh { 350ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 3511fabe148SMark Fasheh handle_t *handle; 352ccd979bdSMark Fasheh 353ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb || !osb->journal->j_journal); 354ccd979bdSMark Fasheh 35565eff9ccSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 35665eff9ccSMark Fasheh return ERR_PTR(-EROFS); 357ccd979bdSMark Fasheh 358ccd979bdSMark Fasheh BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); 359ccd979bdSMark Fasheh BUG_ON(max_buffs <= 0); 360ccd979bdSMark Fasheh 36190e86a63SJan Kara /* Nested transaction? Just return the handle... */ 36290e86a63SJan Kara if (journal_current_handle()) 36390e86a63SJan Kara return jbd2_journal_start(journal, max_buffs); 364ccd979bdSMark Fasheh 365fef6925cSJan Kara sb_start_intwrite(osb->sb); 366fef6925cSJan Kara 367ccd979bdSMark Fasheh down_read(&osb->journal->j_trans_barrier); 368ccd979bdSMark Fasheh 3692b4e30fbSJoel Becker handle = jbd2_journal_start(journal, max_buffs); 3701fabe148SMark Fasheh if (IS_ERR(handle)) { 371ccd979bdSMark Fasheh up_read(&osb->journal->j_trans_barrier); 372fef6925cSJan Kara sb_end_intwrite(osb->sb); 373ccd979bdSMark Fasheh 3741fabe148SMark Fasheh mlog_errno(PTR_ERR(handle)); 375ccd979bdSMark Fasheh 376ccd979bdSMark Fasheh if (is_journal_aborted(journal)) { 3777ecef14aSJoe Perches ocfs2_abort(osb->sb, "Detected aborted journal\n"); 3781fabe148SMark Fasheh handle = ERR_PTR(-EROFS); 379ccd979bdSMark Fasheh } 380c271c5c2SSunil Mushran } else { 381c271c5c2SSunil Mushran if (!ocfs2_mount_local(osb)) 382ccd979bdSMark Fasheh atomic_inc(&(osb->journal->j_num_trans)); 383c271c5c2SSunil Mushran } 384ccd979bdSMark Fasheh 385ccd979bdSMark Fasheh return handle; 386ccd979bdSMark Fasheh } 387ccd979bdSMark Fasheh 3881fabe148SMark Fasheh int ocfs2_commit_trans(struct ocfs2_super *osb, 3891fabe148SMark Fasheh handle_t *handle) 390ccd979bdSMark Fasheh { 39190e86a63SJan Kara int ret, nested; 39202dc1af4SMark Fasheh struct ocfs2_journal *journal = osb->journal; 393ccd979bdSMark Fasheh 394ccd979bdSMark Fasheh BUG_ON(!handle); 395ccd979bdSMark Fasheh 39690e86a63SJan Kara nested = handle->h_ref > 1; 3972b4e30fbSJoel Becker ret = jbd2_journal_stop(handle); 3981fabe148SMark Fasheh if (ret < 0) 3991fabe148SMark Fasheh mlog_errno(ret); 400ccd979bdSMark Fasheh 401fef6925cSJan Kara if (!nested) { 402ccd979bdSMark Fasheh up_read(&journal->j_trans_barrier); 403fef6925cSJan Kara sb_end_intwrite(osb->sb); 404fef6925cSJan Kara } 405ccd979bdSMark Fasheh 4061fabe148SMark Fasheh return ret; 407ccd979bdSMark Fasheh } 408ccd979bdSMark Fasheh 409ccd979bdSMark Fasheh /* 410c901fb00STao Ma * 'nblocks' is what you want to add to the current transaction. 411ccd979bdSMark Fasheh * 4122b4e30fbSJoel Becker * This might call jbd2_journal_restart() which will commit dirty buffers 413e8aed345SMark Fasheh * and then restart the transaction. Before calling 414e8aed345SMark Fasheh * ocfs2_extend_trans(), any changed blocks should have been 415e8aed345SMark Fasheh * dirtied. After calling it, all blocks which need to be changed must 416e8aed345SMark Fasheh * go through another set of journal_access/journal_dirty calls. 417e8aed345SMark Fasheh * 418ccd979bdSMark Fasheh * WARNING: This will not release any semaphores or disk locks taken 419ccd979bdSMark Fasheh * during the transaction, so make sure they were taken *before* 420ccd979bdSMark Fasheh * start_trans or we'll have ordering deadlocks. 421ccd979bdSMark Fasheh * 422ccd979bdSMark Fasheh * WARNING2: Note that we do *not* drop j_trans_barrier here. This is 423ccd979bdSMark Fasheh * good because transaction ids haven't yet been recorded on the 424ccd979bdSMark Fasheh * cluster locks associated with this handle. 425ccd979bdSMark Fasheh */ 4261fc58146SMark Fasheh int ocfs2_extend_trans(handle_t *handle, int nblocks) 427ccd979bdSMark Fasheh { 428c901fb00STao Ma int status, old_nblocks; 429ccd979bdSMark Fasheh 430ccd979bdSMark Fasheh BUG_ON(!handle); 431c901fb00STao Ma BUG_ON(nblocks < 0); 432ccd979bdSMark Fasheh 433c901fb00STao Ma if (!nblocks) 434c901fb00STao Ma return 0; 435c901fb00STao Ma 436c901fb00STao Ma old_nblocks = handle->h_buffer_credits; 437ccd979bdSMark Fasheh 438b4107950STao Ma trace_ocfs2_extend_trans(old_nblocks, nblocks); 439ccd979bdSMark Fasheh 440e407e397SJoel Becker #ifdef CONFIG_OCFS2_DEBUG_FS 4410879c584SMark Fasheh status = 1; 4420879c584SMark Fasheh #else 4432b4e30fbSJoel Becker status = jbd2_journal_extend(handle, nblocks); 444ccd979bdSMark Fasheh if (status < 0) { 445ccd979bdSMark Fasheh mlog_errno(status); 446ccd979bdSMark Fasheh goto bail; 447ccd979bdSMark Fasheh } 4480879c584SMark Fasheh #endif 449ccd979bdSMark Fasheh 450ccd979bdSMark Fasheh if (status > 0) { 451b4107950STao Ma trace_ocfs2_extend_trans_restart(old_nblocks + nblocks); 452c901fb00STao Ma status = jbd2_journal_restart(handle, 453c901fb00STao Ma old_nblocks + nblocks); 454ccd979bdSMark Fasheh if (status < 0) { 455ccd979bdSMark Fasheh mlog_errno(status); 456ccd979bdSMark Fasheh goto bail; 457ccd979bdSMark Fasheh } 45801ddf1e1SMark Fasheh } 459ccd979bdSMark Fasheh 460ccd979bdSMark Fasheh status = 0; 461ccd979bdSMark Fasheh bail: 462ccd979bdSMark Fasheh return status; 463ccd979bdSMark Fasheh } 464ccd979bdSMark Fasheh 4652b1e55c3SYounger Liu /* 4662b1e55c3SYounger Liu * If we have fewer than thresh credits, extend by OCFS2_MAX_TRANS_DATA. 4672b1e55c3SYounger Liu * If that fails, restart the transaction & regain write access for the 4682b1e55c3SYounger Liu * buffer head which is used for metadata modifications. 4692b1e55c3SYounger Liu * Taken from Ext4: extend_or_restart_transaction() 4702b1e55c3SYounger Liu */ 4712b1e55c3SYounger Liu int ocfs2_allocate_extend_trans(handle_t *handle, int thresh) 4722b1e55c3SYounger Liu { 4732b1e55c3SYounger Liu int status, old_nblks; 4742b1e55c3SYounger Liu 4752b1e55c3SYounger Liu BUG_ON(!handle); 4762b1e55c3SYounger Liu 4772b1e55c3SYounger Liu old_nblks = handle->h_buffer_credits; 4782b1e55c3SYounger Liu trace_ocfs2_allocate_extend_trans(old_nblks, thresh); 4792b1e55c3SYounger Liu 4802b1e55c3SYounger Liu if (old_nblks < thresh) 4812b1e55c3SYounger Liu return 0; 4822b1e55c3SYounger Liu 4832b1e55c3SYounger Liu status = jbd2_journal_extend(handle, OCFS2_MAX_TRANS_DATA); 4842b1e55c3SYounger Liu if (status < 0) { 4852b1e55c3SYounger Liu mlog_errno(status); 4862b1e55c3SYounger Liu goto bail; 4872b1e55c3SYounger Liu } 4882b1e55c3SYounger Liu 4892b1e55c3SYounger Liu if (status > 0) { 4902b1e55c3SYounger Liu status = jbd2_journal_restart(handle, OCFS2_MAX_TRANS_DATA); 4912b1e55c3SYounger Liu if (status < 0) 4922b1e55c3SYounger Liu mlog_errno(status); 4932b1e55c3SYounger Liu } 4942b1e55c3SYounger Liu 4952b1e55c3SYounger Liu bail: 4962b1e55c3SYounger Liu return status; 4972b1e55c3SYounger Liu } 4982b1e55c3SYounger Liu 4992b1e55c3SYounger Liu 50050655ae9SJoel Becker struct ocfs2_triggers { 50150655ae9SJoel Becker struct jbd2_buffer_trigger_type ot_triggers; 50250655ae9SJoel Becker int ot_offset; 50350655ae9SJoel Becker }; 50450655ae9SJoel Becker 50550655ae9SJoel Becker static inline struct ocfs2_triggers *to_ocfs2_trigger(struct jbd2_buffer_trigger_type *triggers) 50650655ae9SJoel Becker { 50750655ae9SJoel Becker return container_of(triggers, struct ocfs2_triggers, ot_triggers); 50850655ae9SJoel Becker } 50950655ae9SJoel Becker 51013ceef09SJan Kara static void ocfs2_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 51150655ae9SJoel Becker struct buffer_head *bh, 51250655ae9SJoel Becker void *data, size_t size) 51350655ae9SJoel Becker { 51450655ae9SJoel Becker struct ocfs2_triggers *ot = to_ocfs2_trigger(triggers); 51550655ae9SJoel Becker 51650655ae9SJoel Becker /* 51750655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 51850655ae9SJoel Becker * must unconditionally compute the ecc data. 51950655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 52050655ae9SJoel Becker * metaecc is enabled. 52150655ae9SJoel Becker */ 52250655ae9SJoel Becker ocfs2_block_check_compute(data, size, data + ot->ot_offset); 52350655ae9SJoel Becker } 52450655ae9SJoel Becker 52550655ae9SJoel Becker /* 52650655ae9SJoel Becker * Quota blocks have their own trigger because the struct ocfs2_block_check 52750655ae9SJoel Becker * offset depends on the blocksize. 52850655ae9SJoel Becker */ 52913ceef09SJan Kara static void ocfs2_dq_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 53050655ae9SJoel Becker struct buffer_head *bh, 53150655ae9SJoel Becker void *data, size_t size) 53250655ae9SJoel Becker { 53350655ae9SJoel Becker struct ocfs2_disk_dqtrailer *dqt = 53450655ae9SJoel Becker ocfs2_block_dqtrailer(size, data); 53550655ae9SJoel Becker 53650655ae9SJoel Becker /* 53750655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 53850655ae9SJoel Becker * must unconditionally compute the ecc data. 53950655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 54050655ae9SJoel Becker * metaecc is enabled. 54150655ae9SJoel Becker */ 54250655ae9SJoel Becker ocfs2_block_check_compute(data, size, &dqt->dq_check); 54350655ae9SJoel Becker } 54450655ae9SJoel Becker 545c175a518SJoel Becker /* 546c175a518SJoel Becker * Directory blocks also have their own trigger because the 547c175a518SJoel Becker * struct ocfs2_block_check offset depends on the blocksize. 548c175a518SJoel Becker */ 54913ceef09SJan Kara static void ocfs2_db_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 550c175a518SJoel Becker struct buffer_head *bh, 551c175a518SJoel Becker void *data, size_t size) 552c175a518SJoel Becker { 553c175a518SJoel Becker struct ocfs2_dir_block_trailer *trailer = 554c175a518SJoel Becker ocfs2_dir_trailer_from_size(size, data); 555c175a518SJoel Becker 556c175a518SJoel Becker /* 557c175a518SJoel Becker * We aren't guaranteed to have the superblock here, so we 558c175a518SJoel Becker * must unconditionally compute the ecc data. 559c175a518SJoel Becker * __ocfs2_journal_access() will only set the triggers if 560c175a518SJoel Becker * metaecc is enabled. 561c175a518SJoel Becker */ 562c175a518SJoel Becker ocfs2_block_check_compute(data, size, &trailer->db_check); 563c175a518SJoel Becker } 564c175a518SJoel Becker 56550655ae9SJoel Becker static void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *triggers, 56650655ae9SJoel Becker struct buffer_head *bh) 56750655ae9SJoel Becker { 56850655ae9SJoel Becker mlog(ML_ERROR, 56950655ae9SJoel Becker "ocfs2_abort_trigger called by JBD2. bh = 0x%lx, " 57050655ae9SJoel Becker "bh->b_blocknr = %llu\n", 57150655ae9SJoel Becker (unsigned long)bh, 57250655ae9SJoel Becker (unsigned long long)bh->b_blocknr); 57350655ae9SJoel Becker 57474e364adSXue jiufei ocfs2_error(bh->b_bdev->bd_super, 57550655ae9SJoel Becker "JBD2 has aborted our journal, ocfs2 cannot continue\n"); 57650655ae9SJoel Becker } 57750655ae9SJoel Becker 57850655ae9SJoel Becker static struct ocfs2_triggers di_triggers = { 57950655ae9SJoel Becker .ot_triggers = { 58013ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 58150655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 58250655ae9SJoel Becker }, 58350655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_dinode, i_check), 58450655ae9SJoel Becker }; 58550655ae9SJoel Becker 58650655ae9SJoel Becker static struct ocfs2_triggers eb_triggers = { 58750655ae9SJoel Becker .ot_triggers = { 58813ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 58950655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 59050655ae9SJoel Becker }, 59150655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_extent_block, h_check), 59250655ae9SJoel Becker }; 59350655ae9SJoel Becker 59493c97087STao Ma static struct ocfs2_triggers rb_triggers = { 59593c97087STao Ma .ot_triggers = { 59613ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 59793c97087STao Ma .t_abort = ocfs2_abort_trigger, 59893c97087STao Ma }, 59993c97087STao Ma .ot_offset = offsetof(struct ocfs2_refcount_block, rf_check), 60093c97087STao Ma }; 60193c97087STao Ma 60250655ae9SJoel Becker static struct ocfs2_triggers gd_triggers = { 60350655ae9SJoel Becker .ot_triggers = { 60413ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 60550655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 60650655ae9SJoel Becker }, 60750655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_group_desc, bg_check), 60850655ae9SJoel Becker }; 60950655ae9SJoel Becker 610c175a518SJoel Becker static struct ocfs2_triggers db_triggers = { 611c175a518SJoel Becker .ot_triggers = { 61213ceef09SJan Kara .t_frozen = ocfs2_db_frozen_trigger, 613c175a518SJoel Becker .t_abort = ocfs2_abort_trigger, 614c175a518SJoel Becker }, 615c175a518SJoel Becker }; 616c175a518SJoel Becker 61750655ae9SJoel Becker static struct ocfs2_triggers xb_triggers = { 61850655ae9SJoel Becker .ot_triggers = { 61913ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 62050655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 62150655ae9SJoel Becker }, 62250655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_xattr_block, xb_check), 62350655ae9SJoel Becker }; 62450655ae9SJoel Becker 62550655ae9SJoel Becker static struct ocfs2_triggers dq_triggers = { 62650655ae9SJoel Becker .ot_triggers = { 62713ceef09SJan Kara .t_frozen = ocfs2_dq_frozen_trigger, 62850655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 62950655ae9SJoel Becker }, 63050655ae9SJoel Becker }; 63150655ae9SJoel Becker 6329b7895efSMark Fasheh static struct ocfs2_triggers dr_triggers = { 6339b7895efSMark Fasheh .ot_triggers = { 63413ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 6359b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 6369b7895efSMark Fasheh }, 6379b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_root_block, dr_check), 6389b7895efSMark Fasheh }; 6399b7895efSMark Fasheh 6409b7895efSMark Fasheh static struct ocfs2_triggers dl_triggers = { 6419b7895efSMark Fasheh .ot_triggers = { 64213ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 6439b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 6449b7895efSMark Fasheh }, 6459b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_leaf, dl_check), 6469b7895efSMark Fasheh }; 6479b7895efSMark Fasheh 64850655ae9SJoel Becker static int __ocfs2_journal_access(handle_t *handle, 6490cf2f763SJoel Becker struct ocfs2_caching_info *ci, 650ccd979bdSMark Fasheh struct buffer_head *bh, 65150655ae9SJoel Becker struct ocfs2_triggers *triggers, 652ccd979bdSMark Fasheh int type) 653ccd979bdSMark Fasheh { 654ccd979bdSMark Fasheh int status; 6550cf2f763SJoel Becker struct ocfs2_super *osb = 6560cf2f763SJoel Becker OCFS2_SB(ocfs2_metadata_cache_get_super(ci)); 657ccd979bdSMark Fasheh 6580cf2f763SJoel Becker BUG_ON(!ci || !ci->ci_ops); 659ccd979bdSMark Fasheh BUG_ON(!handle); 660ccd979bdSMark Fasheh BUG_ON(!bh); 661ccd979bdSMark Fasheh 662b4107950STao Ma trace_ocfs2_journal_access( 663b4107950STao Ma (unsigned long long)ocfs2_metadata_cache_owner(ci), 664b4107950STao Ma (unsigned long long)bh->b_blocknr, type, bh->b_size); 665ccd979bdSMark Fasheh 666ccd979bdSMark Fasheh /* we can safely remove this assertion after testing. */ 667ccd979bdSMark Fasheh if (!buffer_uptodate(bh)) { 668ccd979bdSMark Fasheh mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); 669ccd979bdSMark Fasheh mlog(ML_ERROR, "b_blocknr=%llu\n", 670ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 671acf8fdbeSJoseph Qi 672acf8fdbeSJoseph Qi lock_buffer(bh); 673acf8fdbeSJoseph Qi /* 674acf8fdbeSJoseph Qi * A previous attempt to write this buffer head failed. 675acf8fdbeSJoseph Qi * Nothing we can do but to retry the write and hope for 676acf8fdbeSJoseph Qi * the best. 677acf8fdbeSJoseph Qi */ 678acf8fdbeSJoseph Qi if (buffer_write_io_error(bh) && !buffer_uptodate(bh)) { 679acf8fdbeSJoseph Qi clear_buffer_write_io_error(bh); 680acf8fdbeSJoseph Qi set_buffer_uptodate(bh); 681acf8fdbeSJoseph Qi } 682acf8fdbeSJoseph Qi 683acf8fdbeSJoseph Qi if (!buffer_uptodate(bh)) { 684acf8fdbeSJoseph Qi unlock_buffer(bh); 685acf8fdbeSJoseph Qi return -EIO; 686acf8fdbeSJoseph Qi } 687acf8fdbeSJoseph Qi unlock_buffer(bh); 688ccd979bdSMark Fasheh } 689ccd979bdSMark Fasheh 6900cf2f763SJoel Becker /* Set the current transaction information on the ci so 691ccd979bdSMark Fasheh * that the locking code knows whether it can drop it's locks 6920cf2f763SJoel Becker * on this ci or not. We're protected from the commit 693ccd979bdSMark Fasheh * thread updating the current transaction id until 694ccd979bdSMark Fasheh * ocfs2_commit_trans() because ocfs2_start_trans() took 695ccd979bdSMark Fasheh * j_trans_barrier for us. */ 6960cf2f763SJoel Becker ocfs2_set_ci_lock_trans(osb->journal, ci); 697ccd979bdSMark Fasheh 6980cf2f763SJoel Becker ocfs2_metadata_cache_io_lock(ci); 699ccd979bdSMark Fasheh switch (type) { 700ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_CREATE: 701ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_WRITE: 7022b4e30fbSJoel Becker status = jbd2_journal_get_write_access(handle, bh); 703ccd979bdSMark Fasheh break; 704ccd979bdSMark Fasheh 705ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_UNDO: 7062b4e30fbSJoel Becker status = jbd2_journal_get_undo_access(handle, bh); 707ccd979bdSMark Fasheh break; 708ccd979bdSMark Fasheh 709ccd979bdSMark Fasheh default: 710ccd979bdSMark Fasheh status = -EINVAL; 711af901ca1SAndré Goddard Rosa mlog(ML_ERROR, "Unknown access type!\n"); 712ccd979bdSMark Fasheh } 7130cf2f763SJoel Becker if (!status && ocfs2_meta_ecc(osb) && triggers) 71450655ae9SJoel Becker jbd2_journal_set_triggers(bh, &triggers->ot_triggers); 7150cf2f763SJoel Becker ocfs2_metadata_cache_io_unlock(ci); 716ccd979bdSMark Fasheh 717ccd979bdSMark Fasheh if (status < 0) 718ccd979bdSMark Fasheh mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", 719ccd979bdSMark Fasheh status, type); 720ccd979bdSMark Fasheh 721ccd979bdSMark Fasheh return status; 722ccd979bdSMark Fasheh } 723ccd979bdSMark Fasheh 7240cf2f763SJoel Becker int ocfs2_journal_access_di(handle_t *handle, struct ocfs2_caching_info *ci, 72550655ae9SJoel Becker struct buffer_head *bh, int type) 72650655ae9SJoel Becker { 7270cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &di_triggers, type); 72850655ae9SJoel Becker } 72950655ae9SJoel Becker 7300cf2f763SJoel Becker int ocfs2_journal_access_eb(handle_t *handle, struct ocfs2_caching_info *ci, 73150655ae9SJoel Becker struct buffer_head *bh, int type) 73250655ae9SJoel Becker { 7330cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &eb_triggers, type); 73450655ae9SJoel Becker } 73550655ae9SJoel Becker 73693c97087STao Ma int ocfs2_journal_access_rb(handle_t *handle, struct ocfs2_caching_info *ci, 73793c97087STao Ma struct buffer_head *bh, int type) 73893c97087STao Ma { 73993c97087STao Ma return __ocfs2_journal_access(handle, ci, bh, &rb_triggers, 74093c97087STao Ma type); 74193c97087STao Ma } 74293c97087STao Ma 7430cf2f763SJoel Becker int ocfs2_journal_access_gd(handle_t *handle, struct ocfs2_caching_info *ci, 74450655ae9SJoel Becker struct buffer_head *bh, int type) 74550655ae9SJoel Becker { 7460cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &gd_triggers, type); 74750655ae9SJoel Becker } 74850655ae9SJoel Becker 7490cf2f763SJoel Becker int ocfs2_journal_access_db(handle_t *handle, struct ocfs2_caching_info *ci, 75050655ae9SJoel Becker struct buffer_head *bh, int type) 75150655ae9SJoel Becker { 7520cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &db_triggers, type); 75350655ae9SJoel Becker } 75450655ae9SJoel Becker 7550cf2f763SJoel Becker int ocfs2_journal_access_xb(handle_t *handle, struct ocfs2_caching_info *ci, 75650655ae9SJoel Becker struct buffer_head *bh, int type) 75750655ae9SJoel Becker { 7580cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &xb_triggers, type); 75950655ae9SJoel Becker } 76050655ae9SJoel Becker 7610cf2f763SJoel Becker int ocfs2_journal_access_dq(handle_t *handle, struct ocfs2_caching_info *ci, 76250655ae9SJoel Becker struct buffer_head *bh, int type) 76350655ae9SJoel Becker { 7640cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dq_triggers, type); 76550655ae9SJoel Becker } 76650655ae9SJoel Becker 7670cf2f763SJoel Becker int ocfs2_journal_access_dr(handle_t *handle, struct ocfs2_caching_info *ci, 7689b7895efSMark Fasheh struct buffer_head *bh, int type) 7699b7895efSMark Fasheh { 7700cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dr_triggers, type); 7719b7895efSMark Fasheh } 7729b7895efSMark Fasheh 7730cf2f763SJoel Becker int ocfs2_journal_access_dl(handle_t *handle, struct ocfs2_caching_info *ci, 7749b7895efSMark Fasheh struct buffer_head *bh, int type) 7759b7895efSMark Fasheh { 7760cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dl_triggers, type); 7779b7895efSMark Fasheh } 7789b7895efSMark Fasheh 7790cf2f763SJoel Becker int ocfs2_journal_access(handle_t *handle, struct ocfs2_caching_info *ci, 78050655ae9SJoel Becker struct buffer_head *bh, int type) 78150655ae9SJoel Becker { 7820cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, NULL, type); 78350655ae9SJoel Becker } 78450655ae9SJoel Becker 785ec20cec7SJoel Becker void ocfs2_journal_dirty(handle_t *handle, struct buffer_head *bh) 786ccd979bdSMark Fasheh { 787ccd979bdSMark Fasheh int status; 788ccd979bdSMark Fasheh 789b4107950STao Ma trace_ocfs2_journal_dirty((unsigned long long)bh->b_blocknr); 790ccd979bdSMark Fasheh 7912b4e30fbSJoel Becker status = jbd2_journal_dirty_metadata(handle, bh); 792e272e7f0SJoseph Qi if (status) { 793e272e7f0SJoseph Qi mlog_errno(status); 794e272e7f0SJoseph Qi if (!is_handle_aborted(handle)) { 795e272e7f0SJoseph Qi journal_t *journal = handle->h_transaction->t_journal; 796e272e7f0SJoseph Qi struct super_block *sb = bh->b_bdev->bd_super; 797e272e7f0SJoseph Qi 798e272e7f0SJoseph Qi mlog(ML_ERROR, "jbd2_journal_dirty_metadata failed. " 799e272e7f0SJoseph Qi "Aborting transaction and journal.\n"); 800e272e7f0SJoseph Qi handle->h_err = status; 801e272e7f0SJoseph Qi jbd2_journal_abort_handle(handle); 802e272e7f0SJoseph Qi jbd2_journal_abort(journal, status); 803e272e7f0SJoseph Qi ocfs2_abort(sb, "Journal already aborted.\n"); 804e272e7f0SJoseph Qi } 805e272e7f0SJoseph Qi } 806ccd979bdSMark Fasheh } 807ccd979bdSMark Fasheh 8082b4e30fbSJoel Becker #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE) 809ccd979bdSMark Fasheh 810ccd979bdSMark Fasheh void ocfs2_set_journal_params(struct ocfs2_super *osb) 811ccd979bdSMark Fasheh { 812ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 813d147b3d6SMark Fasheh unsigned long commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; 814d147b3d6SMark Fasheh 815d147b3d6SMark Fasheh if (osb->osb_commit_interval) 816d147b3d6SMark Fasheh commit_interval = osb->osb_commit_interval; 817ccd979bdSMark Fasheh 818a931da6aSTheodore Ts'o write_lock(&journal->j_state_lock); 819d147b3d6SMark Fasheh journal->j_commit_interval = commit_interval; 820ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) 8212b4e30fbSJoel Becker journal->j_flags |= JBD2_BARRIER; 822ccd979bdSMark Fasheh else 8232b4e30fbSJoel Becker journal->j_flags &= ~JBD2_BARRIER; 824a931da6aSTheodore Ts'o write_unlock(&journal->j_state_lock); 825ccd979bdSMark Fasheh } 826ccd979bdSMark Fasheh 827ccd979bdSMark Fasheh int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty) 828ccd979bdSMark Fasheh { 829ccd979bdSMark Fasheh int status = -1; 830ccd979bdSMark Fasheh struct inode *inode = NULL; /* the journal inode */ 831ccd979bdSMark Fasheh journal_t *j_journal = NULL; 832ccd979bdSMark Fasheh struct ocfs2_dinode *di = NULL; 833ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 834ccd979bdSMark Fasheh struct ocfs2_super *osb; 835e63aecb6SMark Fasheh int inode_lock = 0; 836ccd979bdSMark Fasheh 837ccd979bdSMark Fasheh BUG_ON(!journal); 838ccd979bdSMark Fasheh 839ccd979bdSMark Fasheh osb = journal->j_osb; 840ccd979bdSMark Fasheh 841ccd979bdSMark Fasheh /* already have the inode for our journal */ 842ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 843ccd979bdSMark Fasheh osb->slot_num); 844ccd979bdSMark Fasheh if (inode == NULL) { 845ccd979bdSMark Fasheh status = -EACCES; 846ccd979bdSMark Fasheh mlog_errno(status); 847ccd979bdSMark Fasheh goto done; 848ccd979bdSMark Fasheh } 849ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 850ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 851ccd979bdSMark Fasheh iput(inode); 852ccd979bdSMark Fasheh inode = NULL; 853ccd979bdSMark Fasheh status = -EACCES; 854ccd979bdSMark Fasheh goto done; 855ccd979bdSMark Fasheh } 856ccd979bdSMark Fasheh 857ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 858ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count++; 859ccd979bdSMark Fasheh 8606eff5790SMark Fasheh /* Skip recovery waits here - journal inode metadata never 8616eff5790SMark Fasheh * changes in a live cluster so it can be considered an 8626eff5790SMark Fasheh * exception to the rule. */ 863e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 864ccd979bdSMark Fasheh if (status < 0) { 865ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 866ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not get lock on journal!\n"); 867ccd979bdSMark Fasheh goto done; 868ccd979bdSMark Fasheh } 869ccd979bdSMark Fasheh 870e63aecb6SMark Fasheh inode_lock = 1; 871ccd979bdSMark Fasheh di = (struct ocfs2_dinode *)bh->b_data; 872ccd979bdSMark Fasheh 873f17c20ddSJunxiao Bi if (i_size_read(inode) < OCFS2_MIN_JOURNAL_SIZE) { 874ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", 875f17c20ddSJunxiao Bi i_size_read(inode)); 876ccd979bdSMark Fasheh status = -EINVAL; 877ccd979bdSMark Fasheh goto done; 878ccd979bdSMark Fasheh } 879ccd979bdSMark Fasheh 880f17c20ddSJunxiao Bi trace_ocfs2_journal_init(i_size_read(inode), 881b4107950STao Ma (unsigned long long)inode->i_blocks, 882b4107950STao Ma OCFS2_I(inode)->ip_clusters); 883ccd979bdSMark Fasheh 884ccd979bdSMark Fasheh /* call the kernels journal init function now */ 8852b4e30fbSJoel Becker j_journal = jbd2_journal_init_inode(inode); 886ccd979bdSMark Fasheh if (j_journal == NULL) { 887ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 888ccd979bdSMark Fasheh status = -EINVAL; 889ccd979bdSMark Fasheh goto done; 890ccd979bdSMark Fasheh } 891ccd979bdSMark Fasheh 892b4107950STao Ma trace_ocfs2_journal_init_maxlen(j_journal->j_maxlen); 893ccd979bdSMark Fasheh 894ccd979bdSMark Fasheh *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & 895ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL); 896ccd979bdSMark Fasheh 897ccd979bdSMark Fasheh journal->j_journal = j_journal; 898ccd979bdSMark Fasheh journal->j_inode = inode; 899ccd979bdSMark Fasheh journal->j_bh = bh; 900ccd979bdSMark Fasheh 901ccd979bdSMark Fasheh ocfs2_set_journal_params(osb); 902ccd979bdSMark Fasheh 903ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_LOADED; 904ccd979bdSMark Fasheh 905ccd979bdSMark Fasheh status = 0; 906ccd979bdSMark Fasheh done: 907ccd979bdSMark Fasheh if (status < 0) { 908e63aecb6SMark Fasheh if (inode_lock) 909e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 910ccd979bdSMark Fasheh brelse(bh); 911ccd979bdSMark Fasheh if (inode) { 912ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 913ccd979bdSMark Fasheh iput(inode); 914ccd979bdSMark Fasheh } 915ccd979bdSMark Fasheh } 916ccd979bdSMark Fasheh 917ccd979bdSMark Fasheh return status; 918ccd979bdSMark Fasheh } 919ccd979bdSMark Fasheh 920539d8264SSunil Mushran static void ocfs2_bump_recovery_generation(struct ocfs2_dinode *di) 921539d8264SSunil Mushran { 922539d8264SSunil Mushran le32_add_cpu(&(di->id1.journal1.ij_recovery_generation), 1); 923539d8264SSunil Mushran } 924539d8264SSunil Mushran 925539d8264SSunil Mushran static u32 ocfs2_get_recovery_generation(struct ocfs2_dinode *di) 926539d8264SSunil Mushran { 927539d8264SSunil Mushran return le32_to_cpu(di->id1.journal1.ij_recovery_generation); 928539d8264SSunil Mushran } 929539d8264SSunil Mushran 930ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 931539d8264SSunil Mushran int dirty, int replayed) 932ccd979bdSMark Fasheh { 933ccd979bdSMark Fasheh int status; 934ccd979bdSMark Fasheh unsigned int flags; 935ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 936ccd979bdSMark Fasheh struct buffer_head *bh = journal->j_bh; 937ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 938ccd979bdSMark Fasheh 939ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *)bh->b_data; 94010995aa2SJoel Becker 94110995aa2SJoel Becker /* The journal bh on the osb always comes from ocfs2_journal_init() 94210995aa2SJoel Becker * and was validated there inside ocfs2_inode_lock_full(). It's a 94310995aa2SJoel Becker * code bug if we mess it up. */ 94410995aa2SJoel Becker BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); 945ccd979bdSMark Fasheh 946ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 947ccd979bdSMark Fasheh if (dirty) 948ccd979bdSMark Fasheh flags |= OCFS2_JOURNAL_DIRTY_FL; 949ccd979bdSMark Fasheh else 950ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 951ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 952ccd979bdSMark Fasheh 953539d8264SSunil Mushran if (replayed) 954539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 955539d8264SSunil Mushran 95613723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 9578cb471e8SJoel Becker status = ocfs2_write_block(osb, bh, INODE_CACHE(journal->j_inode)); 958ccd979bdSMark Fasheh if (status < 0) 959ccd979bdSMark Fasheh mlog_errno(status); 960ccd979bdSMark Fasheh 961ccd979bdSMark Fasheh return status; 962ccd979bdSMark Fasheh } 963ccd979bdSMark Fasheh 964ccd979bdSMark Fasheh /* 965ccd979bdSMark Fasheh * If the journal has been kmalloc'd it needs to be freed after this 966ccd979bdSMark Fasheh * call. 967ccd979bdSMark Fasheh */ 968ccd979bdSMark Fasheh void ocfs2_journal_shutdown(struct ocfs2_super *osb) 969ccd979bdSMark Fasheh { 970ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 971ccd979bdSMark Fasheh int status = 0; 972ccd979bdSMark Fasheh struct inode *inode = NULL; 973ccd979bdSMark Fasheh int num_running_trans = 0; 974ccd979bdSMark Fasheh 975ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb); 976ccd979bdSMark Fasheh 977ccd979bdSMark Fasheh journal = osb->journal; 978ccd979bdSMark Fasheh if (!journal) 979ccd979bdSMark Fasheh goto done; 980ccd979bdSMark Fasheh 981ccd979bdSMark Fasheh inode = journal->j_inode; 982ccd979bdSMark Fasheh 983ccd979bdSMark Fasheh if (journal->j_state != OCFS2_JOURNAL_LOADED) 984ccd979bdSMark Fasheh goto done; 985ccd979bdSMark Fasheh 9862b4e30fbSJoel Becker /* need to inc inode use count - jbd2_journal_destroy will iput. */ 987ccd979bdSMark Fasheh if (!igrab(inode)) 988ccd979bdSMark Fasheh BUG(); 989ccd979bdSMark Fasheh 990ccd979bdSMark Fasheh num_running_trans = atomic_read(&(osb->journal->j_num_trans)); 991b4107950STao Ma trace_ocfs2_journal_shutdown(num_running_trans); 992ccd979bdSMark Fasheh 993ccd979bdSMark Fasheh /* Do a commit_cache here. It will flush our journal, *and* 994ccd979bdSMark Fasheh * release any locks that are still held. 995ccd979bdSMark Fasheh * set the SHUTDOWN flag and release the trans lock. 996ccd979bdSMark Fasheh * the commit thread will take the trans lock for us below. */ 997ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; 998ccd979bdSMark Fasheh 999ccd979bdSMark Fasheh /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not 1000ccd979bdSMark Fasheh * drop the trans_lock (which we want to hold until we 1001ccd979bdSMark Fasheh * completely destroy the journal. */ 1002ccd979bdSMark Fasheh if (osb->commit_task) { 1003ccd979bdSMark Fasheh /* Wait for the commit thread */ 1004b4107950STao Ma trace_ocfs2_journal_shutdown_wait(osb->commit_task); 1005ccd979bdSMark Fasheh kthread_stop(osb->commit_task); 1006ccd979bdSMark Fasheh osb->commit_task = NULL; 1007ccd979bdSMark Fasheh } 1008ccd979bdSMark Fasheh 1009ccd979bdSMark Fasheh BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); 1010ccd979bdSMark Fasheh 1011c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 10122b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 10132b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 10142b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 1015c271c5c2SSunil Mushran if (status < 0) 1016c271c5c2SSunil Mushran mlog_errno(status); 1017c271c5c2SSunil Mushran } 1018c271c5c2SSunil Mushran 1019c271c5c2SSunil Mushran if (status == 0) { 1020c271c5c2SSunil Mushran /* 1021c271c5c2SSunil Mushran * Do not toggle if flush was unsuccessful otherwise 1022c271c5c2SSunil Mushran * will leave dirty metadata in a "clean" journal 1023c271c5c2SSunil Mushran */ 1024539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 0, 0); 1025ccd979bdSMark Fasheh if (status < 0) 1026ccd979bdSMark Fasheh mlog_errno(status); 1027c271c5c2SSunil Mushran } 1028ccd979bdSMark Fasheh 1029ccd979bdSMark Fasheh /* Shutdown the kernel journal system */ 10302b4e30fbSJoel Becker jbd2_journal_destroy(journal->j_journal); 1031ae0dff68SSunil Mushran journal->j_journal = NULL; 1032ccd979bdSMark Fasheh 1033ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 1034ccd979bdSMark Fasheh 1035ccd979bdSMark Fasheh /* unlock our journal */ 1036e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1037ccd979bdSMark Fasheh 1038ccd979bdSMark Fasheh brelse(journal->j_bh); 1039ccd979bdSMark Fasheh journal->j_bh = NULL; 1040ccd979bdSMark Fasheh 1041ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 1042ccd979bdSMark Fasheh 1043ccd979bdSMark Fasheh // up_write(&journal->j_trans_barrier); 1044ccd979bdSMark Fasheh done: 1045ccd979bdSMark Fasheh if (inode) 1046ccd979bdSMark Fasheh iput(inode); 1047ccd979bdSMark Fasheh } 1048ccd979bdSMark Fasheh 1049ccd979bdSMark Fasheh static void ocfs2_clear_journal_error(struct super_block *sb, 1050ccd979bdSMark Fasheh journal_t *journal, 1051ccd979bdSMark Fasheh int slot) 1052ccd979bdSMark Fasheh { 1053ccd979bdSMark Fasheh int olderr; 1054ccd979bdSMark Fasheh 10552b4e30fbSJoel Becker olderr = jbd2_journal_errno(journal); 1056ccd979bdSMark Fasheh if (olderr) { 1057ccd979bdSMark Fasheh mlog(ML_ERROR, "File system error %d recorded in " 1058ccd979bdSMark Fasheh "journal %u.\n", olderr, slot); 1059ccd979bdSMark Fasheh mlog(ML_ERROR, "File system on device %s needs checking.\n", 1060ccd979bdSMark Fasheh sb->s_id); 1061ccd979bdSMark Fasheh 10622b4e30fbSJoel Becker jbd2_journal_ack_err(journal); 10632b4e30fbSJoel Becker jbd2_journal_clear_err(journal); 1064ccd979bdSMark Fasheh } 1065ccd979bdSMark Fasheh } 1066ccd979bdSMark Fasheh 1067539d8264SSunil Mushran int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed) 1068ccd979bdSMark Fasheh { 1069ccd979bdSMark Fasheh int status = 0; 1070ccd979bdSMark Fasheh struct ocfs2_super *osb; 1071ccd979bdSMark Fasheh 1072b1f3550fSJulia Lawall BUG_ON(!journal); 1073ccd979bdSMark Fasheh 1074ccd979bdSMark Fasheh osb = journal->j_osb; 1075ccd979bdSMark Fasheh 10762b4e30fbSJoel Becker status = jbd2_journal_load(journal->j_journal); 1077ccd979bdSMark Fasheh if (status < 0) { 1078ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to load journal!\n"); 1079ccd979bdSMark Fasheh goto done; 1080ccd979bdSMark Fasheh } 1081ccd979bdSMark Fasheh 1082ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); 1083ccd979bdSMark Fasheh 1084539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 1, replayed); 1085ccd979bdSMark Fasheh if (status < 0) { 1086ccd979bdSMark Fasheh mlog_errno(status); 1087ccd979bdSMark Fasheh goto done; 1088ccd979bdSMark Fasheh } 1089ccd979bdSMark Fasheh 1090ccd979bdSMark Fasheh /* Launch the commit thread */ 1091c271c5c2SSunil Mushran if (!local) { 1092c271c5c2SSunil Mushran osb->commit_task = kthread_run(ocfs2_commit_thread, osb, 10935afc44e2SJoseph Qi "ocfs2cmt-%s", osb->uuid_str); 1094ccd979bdSMark Fasheh if (IS_ERR(osb->commit_task)) { 1095ccd979bdSMark Fasheh status = PTR_ERR(osb->commit_task); 1096ccd979bdSMark Fasheh osb->commit_task = NULL; 1097c271c5c2SSunil Mushran mlog(ML_ERROR, "unable to launch ocfs2commit thread, " 1098c271c5c2SSunil Mushran "error=%d", status); 1099ccd979bdSMark Fasheh goto done; 1100ccd979bdSMark Fasheh } 1101c271c5c2SSunil Mushran } else 1102c271c5c2SSunil Mushran osb->commit_task = NULL; 1103ccd979bdSMark Fasheh 1104ccd979bdSMark Fasheh done: 1105ccd979bdSMark Fasheh return status; 1106ccd979bdSMark Fasheh } 1107ccd979bdSMark Fasheh 1108ccd979bdSMark Fasheh 1109ccd979bdSMark Fasheh /* 'full' flag tells us whether we clear out all blocks or if we just 1110ccd979bdSMark Fasheh * mark the journal clean */ 1111ccd979bdSMark Fasheh int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) 1112ccd979bdSMark Fasheh { 1113ccd979bdSMark Fasheh int status; 1114ccd979bdSMark Fasheh 1115ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!journal); 1116ccd979bdSMark Fasheh 11172b4e30fbSJoel Becker status = jbd2_journal_wipe(journal->j_journal, full); 1118ccd979bdSMark Fasheh if (status < 0) { 1119ccd979bdSMark Fasheh mlog_errno(status); 1120ccd979bdSMark Fasheh goto bail; 1121ccd979bdSMark Fasheh } 1122ccd979bdSMark Fasheh 1123539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(journal->j_osb, 0, 0); 1124ccd979bdSMark Fasheh if (status < 0) 1125ccd979bdSMark Fasheh mlog_errno(status); 1126ccd979bdSMark Fasheh 1127ccd979bdSMark Fasheh bail: 1128ccd979bdSMark Fasheh return status; 1129ccd979bdSMark Fasheh } 1130ccd979bdSMark Fasheh 1131553abd04SJoel Becker static int ocfs2_recovery_completed(struct ocfs2_super *osb) 1132553abd04SJoel Becker { 1133553abd04SJoel Becker int empty; 1134553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 1135553abd04SJoel Becker 1136553abd04SJoel Becker spin_lock(&osb->osb_lock); 1137553abd04SJoel Becker empty = (rm->rm_used == 0); 1138553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1139553abd04SJoel Becker 1140553abd04SJoel Becker return empty; 1141553abd04SJoel Becker } 1142553abd04SJoel Becker 1143553abd04SJoel Becker void ocfs2_wait_for_recovery(struct ocfs2_super *osb) 1144553abd04SJoel Becker { 1145553abd04SJoel Becker wait_event(osb->recovery_event, ocfs2_recovery_completed(osb)); 1146553abd04SJoel Becker } 1147553abd04SJoel Becker 1148ccd979bdSMark Fasheh /* 1149ccd979bdSMark Fasheh * JBD Might read a cached version of another nodes journal file. We 1150ccd979bdSMark Fasheh * don't want this as this file changes often and we get no 1151ccd979bdSMark Fasheh * notification on those changes. The only way to be sure that we've 1152ccd979bdSMark Fasheh * got the most up to date version of those blocks then is to force 1153ccd979bdSMark Fasheh * read them off disk. Just searching through the buffer cache won't 1154ccd979bdSMark Fasheh * work as there may be pages backing this file which are still marked 1155ccd979bdSMark Fasheh * up to date. We know things can't change on this file underneath us 1156ccd979bdSMark Fasheh * as we have the lock by now :) 1157ccd979bdSMark Fasheh */ 1158ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode) 1159ccd979bdSMark Fasheh { 1160ccd979bdSMark Fasheh int status = 0; 11614f902c37SMark Fasheh int i; 11628110b073SMark Fasheh u64 v_blkno, p_blkno, p_blocks, num_blocks; 11634f902c37SMark Fasheh #define CONCURRENT_JOURNAL_FILL 32ULL 1164ccd979bdSMark Fasheh struct buffer_head *bhs[CONCURRENT_JOURNAL_FILL]; 1165ccd979bdSMark Fasheh 1166ccd979bdSMark Fasheh memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL); 1167ccd979bdSMark Fasheh 1168f17c20ddSJunxiao Bi num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode)); 1169ccd979bdSMark Fasheh v_blkno = 0; 11708110b073SMark Fasheh while (v_blkno < num_blocks) { 1171ccd979bdSMark Fasheh status = ocfs2_extent_map_get_blocks(inode, v_blkno, 117249cb8d2dSMark Fasheh &p_blkno, &p_blocks, NULL); 1173ccd979bdSMark Fasheh if (status < 0) { 1174ccd979bdSMark Fasheh mlog_errno(status); 1175ccd979bdSMark Fasheh goto bail; 1176ccd979bdSMark Fasheh } 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh if (p_blocks > CONCURRENT_JOURNAL_FILL) 1179ccd979bdSMark Fasheh p_blocks = CONCURRENT_JOURNAL_FILL; 1180ccd979bdSMark Fasheh 1181dd4a2c2bSMark Fasheh /* We are reading journal data which should not 1182dd4a2c2bSMark Fasheh * be put in the uptodate cache */ 1183da1e9098SJoel Becker status = ocfs2_read_blocks_sync(OCFS2_SB(inode->i_sb), 1184da1e9098SJoel Becker p_blkno, p_blocks, bhs); 1185ccd979bdSMark Fasheh if (status < 0) { 1186ccd979bdSMark Fasheh mlog_errno(status); 1187ccd979bdSMark Fasheh goto bail; 1188ccd979bdSMark Fasheh } 1189ccd979bdSMark Fasheh 1190ccd979bdSMark Fasheh for(i = 0; i < p_blocks; i++) { 1191ccd979bdSMark Fasheh brelse(bhs[i]); 1192ccd979bdSMark Fasheh bhs[i] = NULL; 1193ccd979bdSMark Fasheh } 1194ccd979bdSMark Fasheh 1195ccd979bdSMark Fasheh v_blkno += p_blocks; 1196ccd979bdSMark Fasheh } 1197ccd979bdSMark Fasheh 1198ccd979bdSMark Fasheh bail: 1199ccd979bdSMark Fasheh for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++) 1200ccd979bdSMark Fasheh brelse(bhs[i]); 1201ccd979bdSMark Fasheh return status; 1202ccd979bdSMark Fasheh } 1203ccd979bdSMark Fasheh 1204ccd979bdSMark Fasheh struct ocfs2_la_recovery_item { 1205ccd979bdSMark Fasheh struct list_head lri_list; 1206ccd979bdSMark Fasheh int lri_slot; 1207ccd979bdSMark Fasheh struct ocfs2_dinode *lri_la_dinode; 1208ccd979bdSMark Fasheh struct ocfs2_dinode *lri_tl_dinode; 12092205363dSJan Kara struct ocfs2_quota_recovery *lri_qrec; 1210ed460cffSJoseph Qi enum ocfs2_orphan_reco_type lri_orphan_reco_type; 1211ccd979bdSMark Fasheh }; 1212ccd979bdSMark Fasheh 1213ccd979bdSMark Fasheh /* Does the second half of the recovery process. By this point, the 1214ccd979bdSMark Fasheh * node is marked clean and can actually be considered recovered, 1215ccd979bdSMark Fasheh * hence it's no longer in the recovery map, but there's still some 1216ccd979bdSMark Fasheh * cleanup we can do which shouldn't happen within the recovery thread 1217ccd979bdSMark Fasheh * as locking in that context becomes very difficult if we are to take 1218ccd979bdSMark Fasheh * recovering nodes into account. 1219ccd979bdSMark Fasheh * 1220ccd979bdSMark Fasheh * NOTE: This function can and will sleep on recovery of other nodes 1221ccd979bdSMark Fasheh * during cluster locking, just like any other ocfs2 process. 1222ccd979bdSMark Fasheh */ 1223c4028958SDavid Howells void ocfs2_complete_recovery(struct work_struct *work) 1224ccd979bdSMark Fasheh { 1225b4107950STao Ma int ret = 0; 1226c4028958SDavid Howells struct ocfs2_journal *journal = 1227c4028958SDavid Howells container_of(work, struct ocfs2_journal, j_recovery_work); 1228c4028958SDavid Howells struct ocfs2_super *osb = journal->j_osb; 1229ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, *tl_dinode; 1230800deef3SChristoph Hellwig struct ocfs2_la_recovery_item *item, *n; 12312205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1232ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type; 1233ccd979bdSMark Fasheh LIST_HEAD(tmp_la_list); 1234ccd979bdSMark Fasheh 1235b4107950STao Ma trace_ocfs2_complete_recovery( 1236b4107950STao Ma (unsigned long long)OCFS2_I(journal->j_inode)->ip_blkno); 1237ccd979bdSMark Fasheh 1238ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1239ccd979bdSMark Fasheh list_splice_init(&journal->j_la_cleanups, &tmp_la_list); 1240ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1241ccd979bdSMark Fasheh 1242800deef3SChristoph Hellwig list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) { 1243ccd979bdSMark Fasheh list_del_init(&item->lri_list); 1244ccd979bdSMark Fasheh 124519ece546SJan Kara ocfs2_wait_on_quotas(osb); 124619ece546SJan Kara 1247ccd979bdSMark Fasheh la_dinode = item->lri_la_dinode; 1248b4107950STao Ma tl_dinode = item->lri_tl_dinode; 1249b4107950STao Ma qrec = item->lri_qrec; 1250ed460cffSJoseph Qi orphan_reco_type = item->lri_orphan_reco_type; 1251ccd979bdSMark Fasheh 1252b4107950STao Ma trace_ocfs2_complete_recovery_slot(item->lri_slot, 1253b4107950STao Ma la_dinode ? le64_to_cpu(la_dinode->i_blkno) : 0, 1254b4107950STao Ma tl_dinode ? le64_to_cpu(tl_dinode->i_blkno) : 0, 1255b4107950STao Ma qrec); 1256b4107950STao Ma 1257b4107950STao Ma if (la_dinode) { 1258ccd979bdSMark Fasheh ret = ocfs2_complete_local_alloc_recovery(osb, 1259ccd979bdSMark Fasheh la_dinode); 1260ccd979bdSMark Fasheh if (ret < 0) 1261ccd979bdSMark Fasheh mlog_errno(ret); 1262ccd979bdSMark Fasheh 1263ccd979bdSMark Fasheh kfree(la_dinode); 1264ccd979bdSMark Fasheh } 1265ccd979bdSMark Fasheh 1266ccd979bdSMark Fasheh if (tl_dinode) { 1267ccd979bdSMark Fasheh ret = ocfs2_complete_truncate_log_recovery(osb, 1268ccd979bdSMark Fasheh tl_dinode); 1269ccd979bdSMark Fasheh if (ret < 0) 1270ccd979bdSMark Fasheh mlog_errno(ret); 1271ccd979bdSMark Fasheh 1272ccd979bdSMark Fasheh kfree(tl_dinode); 1273ccd979bdSMark Fasheh } 1274ccd979bdSMark Fasheh 1275ed460cffSJoseph Qi ret = ocfs2_recover_orphans(osb, item->lri_slot, 1276ed460cffSJoseph Qi orphan_reco_type); 1277ccd979bdSMark Fasheh if (ret < 0) 1278ccd979bdSMark Fasheh mlog_errno(ret); 1279ccd979bdSMark Fasheh 12802205363dSJan Kara if (qrec) { 12812205363dSJan Kara ret = ocfs2_finish_quota_recovery(osb, qrec, 12822205363dSJan Kara item->lri_slot); 12832205363dSJan Kara if (ret < 0) 12842205363dSJan Kara mlog_errno(ret); 12852205363dSJan Kara /* Recovery info is already freed now */ 12862205363dSJan Kara } 12872205363dSJan Kara 1288ccd979bdSMark Fasheh kfree(item); 1289ccd979bdSMark Fasheh } 1290ccd979bdSMark Fasheh 1291b4107950STao Ma trace_ocfs2_complete_recovery_end(ret); 1292ccd979bdSMark Fasheh } 1293ccd979bdSMark Fasheh 1294ccd979bdSMark Fasheh /* NOTE: This function always eats your references to la_dinode and 1295ccd979bdSMark Fasheh * tl_dinode, either manually on error, or by passing them to 1296ccd979bdSMark Fasheh * ocfs2_complete_recovery */ 1297ccd979bdSMark Fasheh static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 1298ccd979bdSMark Fasheh int slot_num, 1299ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, 13002205363dSJan Kara struct ocfs2_dinode *tl_dinode, 1301ed460cffSJoseph Qi struct ocfs2_quota_recovery *qrec, 1302ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 1303ccd979bdSMark Fasheh { 1304ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 1305ccd979bdSMark Fasheh 1306afae00abSSunil Mushran item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS); 1307ccd979bdSMark Fasheh if (!item) { 1308ccd979bdSMark Fasheh /* Though we wish to avoid it, we are in fact safe in 1309ccd979bdSMark Fasheh * skipping local alloc cleanup as fsck.ocfs2 is more 1310ccd979bdSMark Fasheh * than capable of reclaiming unused space. */ 1311ccd979bdSMark Fasheh kfree(la_dinode); 1312ccd979bdSMark Fasheh kfree(tl_dinode); 1313ccd979bdSMark Fasheh 13142205363dSJan Kara if (qrec) 13152205363dSJan Kara ocfs2_free_quota_recovery(qrec); 13162205363dSJan Kara 1317ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 1318ccd979bdSMark Fasheh return; 1319ccd979bdSMark Fasheh } 1320ccd979bdSMark Fasheh 1321ccd979bdSMark Fasheh INIT_LIST_HEAD(&item->lri_list); 1322ccd979bdSMark Fasheh item->lri_la_dinode = la_dinode; 1323ccd979bdSMark Fasheh item->lri_slot = slot_num; 1324ccd979bdSMark Fasheh item->lri_tl_dinode = tl_dinode; 13252205363dSJan Kara item->lri_qrec = qrec; 1326ed460cffSJoseph Qi item->lri_orphan_reco_type = orphan_reco_type; 1327ccd979bdSMark Fasheh 1328ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1329ccd979bdSMark Fasheh list_add_tail(&item->lri_list, &journal->j_la_cleanups); 1330ccd979bdSMark Fasheh queue_work(ocfs2_wq, &journal->j_recovery_work); 1331ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1332ccd979bdSMark Fasheh } 1333ccd979bdSMark Fasheh 1334ccd979bdSMark Fasheh /* Called by the mount code to queue recovery the last part of 13359140db04SSrinivas Eeda * recovery for it's own and offline slot(s). */ 1336ccd979bdSMark Fasheh void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) 1337ccd979bdSMark Fasheh { 1338ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 1339ccd979bdSMark Fasheh 134010b3dd76SSunil Mushran if (ocfs2_is_hard_readonly(osb)) 134110b3dd76SSunil Mushran return; 134210b3dd76SSunil Mushran 13439140db04SSrinivas Eeda /* No need to queue up our truncate_log as regular cleanup will catch 13449140db04SSrinivas Eeda * that */ 13459140db04SSrinivas Eeda ocfs2_queue_recovery_completion(journal, osb->slot_num, 1346ed460cffSJoseph Qi osb->local_alloc_copy, NULL, NULL, 1347ed460cffSJoseph Qi ORPHAN_NEED_TRUNCATE); 1348ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 1349ccd979bdSMark Fasheh 1350ccd979bdSMark Fasheh osb->local_alloc_copy = NULL; 1351ccd979bdSMark Fasheh osb->dirty = 0; 13529140db04SSrinivas Eeda 13539140db04SSrinivas Eeda /* queue to recover orphan slots for all offline slots */ 13549140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 1355ed460cffSJoseph Qi ocfs2_queue_replay_slots(osb, ORPHAN_NEED_TRUNCATE); 13569140db04SSrinivas Eeda ocfs2_free_replay_slots(osb); 1357ccd979bdSMark Fasheh } 1358ccd979bdSMark Fasheh 13592205363dSJan Kara void ocfs2_complete_quota_recovery(struct ocfs2_super *osb) 13602205363dSJan Kara { 13612205363dSJan Kara if (osb->quota_rec) { 13622205363dSJan Kara ocfs2_queue_recovery_completion(osb->journal, 13632205363dSJan Kara osb->slot_num, 13642205363dSJan Kara NULL, 13652205363dSJan Kara NULL, 1366ed460cffSJoseph Qi osb->quota_rec, 1367ed460cffSJoseph Qi ORPHAN_NEED_TRUNCATE); 13682205363dSJan Kara osb->quota_rec = NULL; 13692205363dSJan Kara } 13702205363dSJan Kara } 13712205363dSJan Kara 1372ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg) 1373ccd979bdSMark Fasheh { 13742205363dSJan Kara int status, node_num, slot_num; 1375ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 1376553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 13772205363dSJan Kara int *rm_quota = NULL; 13782205363dSJan Kara int rm_quota_used = 0, i; 13792205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1380ccd979bdSMark Fasheh 1381ccd979bdSMark Fasheh status = ocfs2_wait_on_mount(osb); 1382ccd979bdSMark Fasheh if (status < 0) { 1383ccd979bdSMark Fasheh goto bail; 1384ccd979bdSMark Fasheh } 1385ccd979bdSMark Fasheh 13862205363dSJan Kara rm_quota = kzalloc(osb->max_slots * sizeof(int), GFP_NOFS); 13872205363dSJan Kara if (!rm_quota) { 13882205363dSJan Kara status = -ENOMEM; 13892205363dSJan Kara goto bail; 13902205363dSJan Kara } 1391ccd979bdSMark Fasheh restart: 1392ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1393ccd979bdSMark Fasheh if (status < 0) { 1394ccd979bdSMark Fasheh mlog_errno(status); 1395ccd979bdSMark Fasheh goto bail; 1396ccd979bdSMark Fasheh } 1397ccd979bdSMark Fasheh 13989140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 13999140db04SSrinivas Eeda if (status < 0) 14009140db04SSrinivas Eeda mlog_errno(status); 14019140db04SSrinivas Eeda 14029140db04SSrinivas Eeda /* queue recovery for our own slot */ 14039140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, 1404ed460cffSJoseph Qi NULL, NULL, ORPHAN_NO_NEED_TRUNCATE); 14059140db04SSrinivas Eeda 1406553abd04SJoel Becker spin_lock(&osb->osb_lock); 1407553abd04SJoel Becker while (rm->rm_used) { 1408553abd04SJoel Becker /* It's always safe to remove entry zero, as we won't 1409553abd04SJoel Becker * clear it until ocfs2_recover_node() has succeeded. */ 1410553abd04SJoel Becker node_num = rm->rm_entries[0]; 1411553abd04SJoel Becker spin_unlock(&osb->osb_lock); 14122205363dSJan Kara slot_num = ocfs2_node_num_to_slot(osb, node_num); 1413b4107950STao Ma trace_ocfs2_recovery_thread_node(node_num, slot_num); 14142205363dSJan Kara if (slot_num == -ENOENT) { 14152205363dSJan Kara status = 0; 14162205363dSJan Kara goto skip_recovery; 14172205363dSJan Kara } 1418ccd979bdSMark Fasheh 14192205363dSJan Kara /* It is a bit subtle with quota recovery. We cannot do it 14202205363dSJan Kara * immediately because we have to obtain cluster locks from 14212205363dSJan Kara * quota files and we also don't want to just skip it because 14222205363dSJan Kara * then quota usage would be out of sync until some node takes 14232205363dSJan Kara * the slot. So we remember which nodes need quota recovery 14242205363dSJan Kara * and when everything else is done, we recover quotas. */ 14252205363dSJan Kara for (i = 0; i < rm_quota_used && rm_quota[i] != slot_num; i++); 14262205363dSJan Kara if (i == rm_quota_used) 14272205363dSJan Kara rm_quota[rm_quota_used++] = slot_num; 14282205363dSJan Kara 14292205363dSJan Kara status = ocfs2_recover_node(osb, node_num, slot_num); 14302205363dSJan Kara skip_recovery: 1431553abd04SJoel Becker if (!status) { 1432553abd04SJoel Becker ocfs2_recovery_map_clear(osb, node_num); 1433553abd04SJoel Becker } else { 1434ccd979bdSMark Fasheh mlog(ML_ERROR, 1435ccd979bdSMark Fasheh "Error %d recovering node %d on device (%u,%u)!\n", 1436ccd979bdSMark Fasheh status, node_num, 1437ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1438ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume requires unmount.\n"); 1439ccd979bdSMark Fasheh } 1440ccd979bdSMark Fasheh 1441553abd04SJoel Becker spin_lock(&osb->osb_lock); 1442ccd979bdSMark Fasheh } 1443553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1444b4107950STao Ma trace_ocfs2_recovery_thread_end(status); 1445553abd04SJoel Becker 1446539d8264SSunil Mushran /* Refresh all journal recovery generations from disk */ 1447539d8264SSunil Mushran status = ocfs2_check_journals_nolocks(osb); 1448539d8264SSunil Mushran status = (status == -EROFS) ? 0 : status; 1449539d8264SSunil Mushran if (status < 0) 1450539d8264SSunil Mushran mlog_errno(status); 1451539d8264SSunil Mushran 14522205363dSJan Kara /* Now it is right time to recover quotas... We have to do this under 14532205363dSJan Kara * superblock lock so that no one can start using the slot (and crash) 14542205363dSJan Kara * before we recover it */ 14552205363dSJan Kara for (i = 0; i < rm_quota_used; i++) { 14562205363dSJan Kara qrec = ocfs2_begin_quota_recovery(osb, rm_quota[i]); 14572205363dSJan Kara if (IS_ERR(qrec)) { 14582205363dSJan Kara status = PTR_ERR(qrec); 14592205363dSJan Kara mlog_errno(status); 14602205363dSJan Kara continue; 14612205363dSJan Kara } 14622205363dSJan Kara ocfs2_queue_recovery_completion(osb->journal, rm_quota[i], 1463ed460cffSJoseph Qi NULL, NULL, qrec, 1464ed460cffSJoseph Qi ORPHAN_NEED_TRUNCATE); 14652205363dSJan Kara } 14662205363dSJan Kara 1467ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1468ccd979bdSMark Fasheh 14699140db04SSrinivas Eeda /* queue recovery for offline slots */ 1470ed460cffSJoseph Qi ocfs2_queue_replay_slots(osb, ORPHAN_NEED_TRUNCATE); 1471ccd979bdSMark Fasheh 1472ccd979bdSMark Fasheh bail: 1473c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1474553abd04SJoel Becker if (!status && !ocfs2_recovery_completed(osb)) { 1475c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1476ccd979bdSMark Fasheh goto restart; 1477ccd979bdSMark Fasheh } 1478ccd979bdSMark Fasheh 14799140db04SSrinivas Eeda ocfs2_free_replay_slots(osb); 1480ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1481ccd979bdSMark Fasheh mb(); /* sync with ocfs2_recovery_thread_running */ 1482ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1483ccd979bdSMark Fasheh 1484c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1485ccd979bdSMark Fasheh 14862205363dSJan Kara kfree(rm_quota); 14872205363dSJan Kara 1488ccd979bdSMark Fasheh /* no one is callint kthread_stop() for us so the kthread() api 1489ccd979bdSMark Fasheh * requires that we call do_exit(). And it isn't exported, but 1490ccd979bdSMark Fasheh * complete_and_exit() seems to be a minimal wrapper around it. */ 1491ccd979bdSMark Fasheh complete_and_exit(NULL, status); 1492ccd979bdSMark Fasheh } 1493ccd979bdSMark Fasheh 1494ccd979bdSMark Fasheh void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) 1495ccd979bdSMark Fasheh { 1496c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1497b4107950STao Ma 1498b4107950STao Ma trace_ocfs2_recovery_thread(node_num, osb->node_num, 1499b4107950STao Ma osb->disable_recovery, osb->recovery_thread_task, 1500b4107950STao Ma osb->disable_recovery ? 1501b4107950STao Ma -1 : ocfs2_recovery_map_set(osb, node_num)); 1502b4107950STao Ma 1503ccd979bdSMark Fasheh if (osb->disable_recovery) 1504ccd979bdSMark Fasheh goto out; 1505ccd979bdSMark Fasheh 1506ccd979bdSMark Fasheh if (osb->recovery_thread_task) 1507ccd979bdSMark Fasheh goto out; 1508ccd979bdSMark Fasheh 1509ccd979bdSMark Fasheh osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, 15105afc44e2SJoseph Qi "ocfs2rec-%s", osb->uuid_str); 1511ccd979bdSMark Fasheh if (IS_ERR(osb->recovery_thread_task)) { 1512ccd979bdSMark Fasheh mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); 1513ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1514ccd979bdSMark Fasheh } 1515ccd979bdSMark Fasheh 1516ccd979bdSMark Fasheh out: 1517c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1518ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1519ccd979bdSMark Fasheh } 1520ccd979bdSMark Fasheh 1521539d8264SSunil Mushran static int ocfs2_read_journal_inode(struct ocfs2_super *osb, 1522539d8264SSunil Mushran int slot_num, 1523539d8264SSunil Mushran struct buffer_head **bh, 1524539d8264SSunil Mushran struct inode **ret_inode) 1525539d8264SSunil Mushran { 1526539d8264SSunil Mushran int status = -EACCES; 1527539d8264SSunil Mushran struct inode *inode = NULL; 1528539d8264SSunil Mushran 1529539d8264SSunil Mushran BUG_ON(slot_num >= osb->max_slots); 1530539d8264SSunil Mushran 1531539d8264SSunil Mushran inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1532539d8264SSunil Mushran slot_num); 1533539d8264SSunil Mushran if (!inode || is_bad_inode(inode)) { 1534539d8264SSunil Mushran mlog_errno(status); 1535539d8264SSunil Mushran goto bail; 1536539d8264SSunil Mushran } 1537539d8264SSunil Mushran SET_INODE_JOURNAL(inode); 1538539d8264SSunil Mushran 1539b657c95cSJoel Becker status = ocfs2_read_inode_block_full(inode, bh, OCFS2_BH_IGNORE_CACHE); 1540539d8264SSunil Mushran if (status < 0) { 1541539d8264SSunil Mushran mlog_errno(status); 1542539d8264SSunil Mushran goto bail; 1543539d8264SSunil Mushran } 1544539d8264SSunil Mushran 1545539d8264SSunil Mushran status = 0; 1546539d8264SSunil Mushran 1547539d8264SSunil Mushran bail: 1548539d8264SSunil Mushran if (inode) { 1549539d8264SSunil Mushran if (status || !ret_inode) 1550539d8264SSunil Mushran iput(inode); 1551539d8264SSunil Mushran else 1552539d8264SSunil Mushran *ret_inode = inode; 1553539d8264SSunil Mushran } 1554539d8264SSunil Mushran return status; 1555539d8264SSunil Mushran } 1556539d8264SSunil Mushran 1557ccd979bdSMark Fasheh /* Does the actual journal replay and marks the journal inode as 1558ccd979bdSMark Fasheh * clean. Will only replay if the journal inode is marked dirty. */ 1559ccd979bdSMark Fasheh static int ocfs2_replay_journal(struct ocfs2_super *osb, 1560ccd979bdSMark Fasheh int node_num, 1561ccd979bdSMark Fasheh int slot_num) 1562ccd979bdSMark Fasheh { 1563ccd979bdSMark Fasheh int status; 1564ccd979bdSMark Fasheh int got_lock = 0; 1565ccd979bdSMark Fasheh unsigned int flags; 1566ccd979bdSMark Fasheh struct inode *inode = NULL; 1567ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 1568ccd979bdSMark Fasheh journal_t *journal = NULL; 1569ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1570539d8264SSunil Mushran u32 slot_reco_gen; 1571ccd979bdSMark Fasheh 1572539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, slot_num, &bh, &inode); 1573539d8264SSunil Mushran if (status) { 1574ccd979bdSMark Fasheh mlog_errno(status); 1575ccd979bdSMark Fasheh goto done; 1576ccd979bdSMark Fasheh } 1577539d8264SSunil Mushran 1578539d8264SSunil Mushran fe = (struct ocfs2_dinode *)bh->b_data; 1579539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1580539d8264SSunil Mushran brelse(bh); 1581539d8264SSunil Mushran bh = NULL; 1582539d8264SSunil Mushran 1583539d8264SSunil Mushran /* 1584539d8264SSunil Mushran * As the fs recovery is asynchronous, there is a small chance that 1585539d8264SSunil Mushran * another node mounted (and recovered) the slot before the recovery 1586539d8264SSunil Mushran * thread could get the lock. To handle that, we dirty read the journal 1587539d8264SSunil Mushran * inode for that slot to get the recovery generation. If it is 1588539d8264SSunil Mushran * different than what we expected, the slot has been recovered. 1589539d8264SSunil Mushran * If not, it needs recovery. 1590539d8264SSunil Mushran */ 1591539d8264SSunil Mushran if (osb->slot_recovery_generations[slot_num] != slot_reco_gen) { 1592b4107950STao Ma trace_ocfs2_replay_journal_recovered(slot_num, 1593539d8264SSunil Mushran osb->slot_recovery_generations[slot_num], slot_reco_gen); 1594539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1595539d8264SSunil Mushran status = -EBUSY; 1596ccd979bdSMark Fasheh goto done; 1597ccd979bdSMark Fasheh } 1598539d8264SSunil Mushran 1599539d8264SSunil Mushran /* Continue with recovery as the journal has not yet been recovered */ 1600ccd979bdSMark Fasheh 1601e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 1602ccd979bdSMark Fasheh if (status < 0) { 1603b4107950STao Ma trace_ocfs2_replay_journal_lock_err(status); 1604ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 1605ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not lock journal!\n"); 1606ccd979bdSMark Fasheh goto done; 1607ccd979bdSMark Fasheh } 1608ccd979bdSMark Fasheh got_lock = 1; 1609ccd979bdSMark Fasheh 1610ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *) bh->b_data; 1611ccd979bdSMark Fasheh 1612ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1613539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1614ccd979bdSMark Fasheh 1615ccd979bdSMark Fasheh if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { 1616b4107950STao Ma trace_ocfs2_replay_journal_skip(node_num); 1617539d8264SSunil Mushran /* Refresh recovery generation for the slot */ 1618539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1619ccd979bdSMark Fasheh goto done; 1620ccd979bdSMark Fasheh } 1621ccd979bdSMark Fasheh 16229140db04SSrinivas Eeda /* we need to run complete recovery for offline orphan slots */ 16239140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 16249140db04SSrinivas Eeda 1625619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Begin replay journal (node %d, slot %d) on "\ 1626619c200dSSunil Mushran "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), 1627619c200dSSunil Mushran MINOR(osb->sb->s_dev)); 1628ccd979bdSMark Fasheh 1629ccd979bdSMark Fasheh OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); 1630ccd979bdSMark Fasheh 1631ccd979bdSMark Fasheh status = ocfs2_force_read_journal(inode); 1632ccd979bdSMark Fasheh if (status < 0) { 1633ccd979bdSMark Fasheh mlog_errno(status); 1634ccd979bdSMark Fasheh goto done; 1635ccd979bdSMark Fasheh } 1636ccd979bdSMark Fasheh 16372b4e30fbSJoel Becker journal = jbd2_journal_init_inode(inode); 1638ccd979bdSMark Fasheh if (journal == NULL) { 1639ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 1640ccd979bdSMark Fasheh status = -EIO; 1641ccd979bdSMark Fasheh goto done; 1642ccd979bdSMark Fasheh } 1643ccd979bdSMark Fasheh 16442b4e30fbSJoel Becker status = jbd2_journal_load(journal); 1645ccd979bdSMark Fasheh if (status < 0) { 1646ccd979bdSMark Fasheh mlog_errno(status); 1647ccd979bdSMark Fasheh if (!igrab(inode)) 1648ccd979bdSMark Fasheh BUG(); 16492b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1650ccd979bdSMark Fasheh goto done; 1651ccd979bdSMark Fasheh } 1652ccd979bdSMark Fasheh 1653ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal, slot_num); 1654ccd979bdSMark Fasheh 1655ccd979bdSMark Fasheh /* wipe the journal */ 16562b4e30fbSJoel Becker jbd2_journal_lock_updates(journal); 16572b4e30fbSJoel Becker status = jbd2_journal_flush(journal); 16582b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal); 1659ccd979bdSMark Fasheh if (status < 0) 1660ccd979bdSMark Fasheh mlog_errno(status); 1661ccd979bdSMark Fasheh 1662ccd979bdSMark Fasheh /* This will mark the node clean */ 1663ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1664ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 1665ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 1666ccd979bdSMark Fasheh 1667539d8264SSunil Mushran /* Increment recovery generation to indicate successful recovery */ 1668539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 1669539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = 1670539d8264SSunil Mushran ocfs2_get_recovery_generation(fe); 1671539d8264SSunil Mushran 167213723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 16738cb471e8SJoel Becker status = ocfs2_write_block(osb, bh, INODE_CACHE(inode)); 1674ccd979bdSMark Fasheh if (status < 0) 1675ccd979bdSMark Fasheh mlog_errno(status); 1676ccd979bdSMark Fasheh 1677ccd979bdSMark Fasheh if (!igrab(inode)) 1678ccd979bdSMark Fasheh BUG(); 1679ccd979bdSMark Fasheh 16802b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1681ccd979bdSMark Fasheh 1682619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: End replay journal (node %d, slot %d) on "\ 1683619c200dSSunil Mushran "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), 1684619c200dSSunil Mushran MINOR(osb->sb->s_dev)); 1685ccd979bdSMark Fasheh done: 1686ccd979bdSMark Fasheh /* drop the lock on this nodes journal */ 1687ccd979bdSMark Fasheh if (got_lock) 1688e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1689ccd979bdSMark Fasheh 1690ccd979bdSMark Fasheh if (inode) 1691ccd979bdSMark Fasheh iput(inode); 1692ccd979bdSMark Fasheh 1693ccd979bdSMark Fasheh brelse(bh); 1694ccd979bdSMark Fasheh 1695ccd979bdSMark Fasheh return status; 1696ccd979bdSMark Fasheh } 1697ccd979bdSMark Fasheh 1698ccd979bdSMark Fasheh /* 1699ccd979bdSMark Fasheh * Do the most important parts of node recovery: 1700ccd979bdSMark Fasheh * - Replay it's journal 1701ccd979bdSMark Fasheh * - Stamp a clean local allocator file 1702ccd979bdSMark Fasheh * - Stamp a clean truncate log 1703ccd979bdSMark Fasheh * - Mark the node clean 1704ccd979bdSMark Fasheh * 1705ccd979bdSMark Fasheh * If this function completes without error, a node in OCFS2 can be 1706ccd979bdSMark Fasheh * said to have been safely recovered. As a result, failure during the 1707ccd979bdSMark Fasheh * second part of a nodes recovery process (local alloc recovery) is 1708ccd979bdSMark Fasheh * far less concerning. 1709ccd979bdSMark Fasheh */ 1710ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 17112205363dSJan Kara int node_num, int slot_num) 1712ccd979bdSMark Fasheh { 1713ccd979bdSMark Fasheh int status = 0; 1714ccd979bdSMark Fasheh struct ocfs2_dinode *la_copy = NULL; 1715ccd979bdSMark Fasheh struct ocfs2_dinode *tl_copy = NULL; 1716ccd979bdSMark Fasheh 1717b4107950STao Ma trace_ocfs2_recover_node(node_num, slot_num, osb->node_num); 1718ccd979bdSMark Fasheh 1719ccd979bdSMark Fasheh /* Should not ever be called to recover ourselves -- in that 1720ccd979bdSMark Fasheh * case we should've called ocfs2_journal_load instead. */ 1721ebdec83bSEric Sesterhenn / snakebyte BUG_ON(osb->node_num == node_num); 1722ccd979bdSMark Fasheh 1723ccd979bdSMark Fasheh status = ocfs2_replay_journal(osb, node_num, slot_num); 1724ccd979bdSMark Fasheh if (status < 0) { 1725539d8264SSunil Mushran if (status == -EBUSY) { 1726b4107950STao Ma trace_ocfs2_recover_node_skip(slot_num, node_num); 1727539d8264SSunil Mushran status = 0; 1728539d8264SSunil Mushran goto done; 1729539d8264SSunil Mushran } 1730ccd979bdSMark Fasheh mlog_errno(status); 1731ccd979bdSMark Fasheh goto done; 1732ccd979bdSMark Fasheh } 1733ccd979bdSMark Fasheh 1734ccd979bdSMark Fasheh /* Stamp a clean local alloc file AFTER recovering the journal... */ 1735ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); 1736ccd979bdSMark Fasheh if (status < 0) { 1737ccd979bdSMark Fasheh mlog_errno(status); 1738ccd979bdSMark Fasheh goto done; 1739ccd979bdSMark Fasheh } 1740ccd979bdSMark Fasheh 1741ccd979bdSMark Fasheh /* An error from begin_truncate_log_recovery is not 1742ccd979bdSMark Fasheh * serious enough to warrant halting the rest of 1743ccd979bdSMark Fasheh * recovery. */ 1744ccd979bdSMark Fasheh status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); 1745ccd979bdSMark Fasheh if (status < 0) 1746ccd979bdSMark Fasheh mlog_errno(status); 1747ccd979bdSMark Fasheh 1748ccd979bdSMark Fasheh /* Likewise, this would be a strange but ultimately not so 1749ccd979bdSMark Fasheh * harmful place to get an error... */ 17508e8a4603SMark Fasheh status = ocfs2_clear_slot(osb, slot_num); 1751ccd979bdSMark Fasheh if (status < 0) 1752ccd979bdSMark Fasheh mlog_errno(status); 1753ccd979bdSMark Fasheh 1754ccd979bdSMark Fasheh /* This will kfree the memory pointed to by la_copy and tl_copy */ 1755ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, 1756ed460cffSJoseph Qi tl_copy, NULL, ORPHAN_NEED_TRUNCATE); 1757ccd979bdSMark Fasheh 1758ccd979bdSMark Fasheh status = 0; 1759ccd979bdSMark Fasheh done: 1760ccd979bdSMark Fasheh 1761ccd979bdSMark Fasheh return status; 1762ccd979bdSMark Fasheh } 1763ccd979bdSMark Fasheh 1764ccd979bdSMark Fasheh /* Test node liveness by trylocking his journal. If we get the lock, 1765ccd979bdSMark Fasheh * we drop it here. Return 0 if we got the lock, -EAGAIN if node is 1766ccd979bdSMark Fasheh * still alive (we couldn't get the lock) and < 0 on error. */ 1767ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 1768ccd979bdSMark Fasheh int slot_num) 1769ccd979bdSMark Fasheh { 1770ccd979bdSMark Fasheh int status, flags; 1771ccd979bdSMark Fasheh struct inode *inode = NULL; 1772ccd979bdSMark Fasheh 1773ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1774ccd979bdSMark Fasheh slot_num); 1775ccd979bdSMark Fasheh if (inode == NULL) { 1776ccd979bdSMark Fasheh mlog(ML_ERROR, "access error\n"); 1777ccd979bdSMark Fasheh status = -EACCES; 1778ccd979bdSMark Fasheh goto bail; 1779ccd979bdSMark Fasheh } 1780ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1781ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 1782ccd979bdSMark Fasheh iput(inode); 1783ccd979bdSMark Fasheh inode = NULL; 1784ccd979bdSMark Fasheh status = -EACCES; 1785ccd979bdSMark Fasheh goto bail; 1786ccd979bdSMark Fasheh } 1787ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1788ccd979bdSMark Fasheh 1789ccd979bdSMark Fasheh flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; 1790e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, NULL, 1, flags); 1791ccd979bdSMark Fasheh if (status < 0) { 1792ccd979bdSMark Fasheh if (status != -EAGAIN) 1793ccd979bdSMark Fasheh mlog_errno(status); 1794ccd979bdSMark Fasheh goto bail; 1795ccd979bdSMark Fasheh } 1796ccd979bdSMark Fasheh 1797e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1798ccd979bdSMark Fasheh bail: 1799ccd979bdSMark Fasheh if (inode) 1800ccd979bdSMark Fasheh iput(inode); 1801ccd979bdSMark Fasheh 1802ccd979bdSMark Fasheh return status; 1803ccd979bdSMark Fasheh } 1804ccd979bdSMark Fasheh 1805ccd979bdSMark Fasheh /* Call this underneath ocfs2_super_lock. It also assumes that the 1806ccd979bdSMark Fasheh * slot info struct has been updated from disk. */ 1807ccd979bdSMark Fasheh int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) 1808ccd979bdSMark Fasheh { 1809d85b20e4SJoel Becker unsigned int node_num; 1810d85b20e4SJoel Becker int status, i; 1811a1af7d15SMark Fasheh u32 gen; 1812539d8264SSunil Mushran struct buffer_head *bh = NULL; 1813539d8264SSunil Mushran struct ocfs2_dinode *di; 1814ccd979bdSMark Fasheh 1815ccd979bdSMark Fasheh /* This is called with the super block cluster lock, so we 1816ccd979bdSMark Fasheh * know that the slot map can't change underneath us. */ 1817ccd979bdSMark Fasheh 1818d85b20e4SJoel Becker for (i = 0; i < osb->max_slots; i++) { 1819539d8264SSunil Mushran /* Read journal inode to get the recovery generation */ 1820539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, i, &bh, NULL); 1821539d8264SSunil Mushran if (status) { 1822539d8264SSunil Mushran mlog_errno(status); 1823539d8264SSunil Mushran goto bail; 1824539d8264SSunil Mushran } 1825539d8264SSunil Mushran di = (struct ocfs2_dinode *)bh->b_data; 1826a1af7d15SMark Fasheh gen = ocfs2_get_recovery_generation(di); 1827539d8264SSunil Mushran brelse(bh); 1828539d8264SSunil Mushran bh = NULL; 1829539d8264SSunil Mushran 1830a1af7d15SMark Fasheh spin_lock(&osb->osb_lock); 1831a1af7d15SMark Fasheh osb->slot_recovery_generations[i] = gen; 1832a1af7d15SMark Fasheh 1833b4107950STao Ma trace_ocfs2_mark_dead_nodes(i, 1834539d8264SSunil Mushran osb->slot_recovery_generations[i]); 1835539d8264SSunil Mushran 1836a1af7d15SMark Fasheh if (i == osb->slot_num) { 1837a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1838ccd979bdSMark Fasheh continue; 1839a1af7d15SMark Fasheh } 1840d85b20e4SJoel Becker 1841d85b20e4SJoel Becker status = ocfs2_slot_to_node_num_locked(osb, i, &node_num); 1842a1af7d15SMark Fasheh if (status == -ENOENT) { 1843a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1844ccd979bdSMark Fasheh continue; 1845a1af7d15SMark Fasheh } 1846ccd979bdSMark Fasheh 1847a1af7d15SMark Fasheh if (__ocfs2_recovery_map_test(osb, node_num)) { 1848a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1849ccd979bdSMark Fasheh continue; 1850a1af7d15SMark Fasheh } 1851d85b20e4SJoel Becker spin_unlock(&osb->osb_lock); 1852ccd979bdSMark Fasheh 1853ccd979bdSMark Fasheh /* Ok, we have a slot occupied by another node which 1854ccd979bdSMark Fasheh * is not in the recovery map. We trylock his journal 1855ccd979bdSMark Fasheh * file here to test if he's alive. */ 1856ccd979bdSMark Fasheh status = ocfs2_trylock_journal(osb, i); 1857ccd979bdSMark Fasheh if (!status) { 1858ccd979bdSMark Fasheh /* Since we're called from mount, we know that 1859ccd979bdSMark Fasheh * the recovery thread can't race us on 1860ccd979bdSMark Fasheh * setting / checking the recovery bits. */ 1861ccd979bdSMark Fasheh ocfs2_recovery_thread(osb, node_num); 1862ccd979bdSMark Fasheh } else if ((status < 0) && (status != -EAGAIN)) { 1863ccd979bdSMark Fasheh mlog_errno(status); 1864ccd979bdSMark Fasheh goto bail; 1865ccd979bdSMark Fasheh } 1866ccd979bdSMark Fasheh } 1867ccd979bdSMark Fasheh 1868ccd979bdSMark Fasheh status = 0; 1869ccd979bdSMark Fasheh bail: 1870ccd979bdSMark Fasheh return status; 1871ccd979bdSMark Fasheh } 1872ccd979bdSMark Fasheh 187383273932SSrinivas Eeda /* 187483273932SSrinivas Eeda * Scan timer should get fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT. Add some 187583273932SSrinivas Eeda * randomness to the timeout to minimize multple nodes firing the timer at the 187683273932SSrinivas Eeda * same time. 187783273932SSrinivas Eeda */ 187883273932SSrinivas Eeda static inline unsigned long ocfs2_orphan_scan_timeout(void) 187983273932SSrinivas Eeda { 188083273932SSrinivas Eeda unsigned long time; 188183273932SSrinivas Eeda 188283273932SSrinivas Eeda get_random_bytes(&time, sizeof(time)); 188383273932SSrinivas Eeda time = ORPHAN_SCAN_SCHEDULE_TIMEOUT + (time % 5000); 188483273932SSrinivas Eeda return msecs_to_jiffies(time); 188583273932SSrinivas Eeda } 188683273932SSrinivas Eeda 188783273932SSrinivas Eeda /* 188883273932SSrinivas Eeda * ocfs2_queue_orphan_scan calls ocfs2_queue_recovery_completion for 188983273932SSrinivas Eeda * every slot, queuing a recovery of the slot on the ocfs2_wq thread. This 189083273932SSrinivas Eeda * is done to catch any orphans that are left over in orphan directories. 189183273932SSrinivas Eeda * 1892a035bff6SSunil Mushran * It scans all slots, even ones that are in use. It does so to handle the 1893a035bff6SSunil Mushran * case described below: 1894a035bff6SSunil Mushran * 1895a035bff6SSunil Mushran * Node 1 has an inode it was using. The dentry went away due to memory 1896a035bff6SSunil Mushran * pressure. Node 1 closes the inode, but it's on the free list. The node 1897a035bff6SSunil Mushran * has the open lock. 1898a035bff6SSunil Mushran * Node 2 unlinks the inode. It grabs the dentry lock to notify others, 1899a035bff6SSunil Mushran * but node 1 has no dentry and doesn't get the message. It trylocks the 1900a035bff6SSunil Mushran * open lock, sees that another node has a PR, and does nothing. 1901a035bff6SSunil Mushran * Later node 2 runs its orphan dir. It igets the inode, trylocks the 1902a035bff6SSunil Mushran * open lock, sees the PR still, and does nothing. 1903a035bff6SSunil Mushran * Basically, we have to trigger an orphan iput on node 1. The only way 1904a035bff6SSunil Mushran * for this to happen is if node 1 runs node 2's orphan dir. 1905a035bff6SSunil Mushran * 190683273932SSrinivas Eeda * ocfs2_queue_orphan_scan gets called every ORPHAN_SCAN_SCHEDULE_TIMEOUT 190783273932SSrinivas Eeda * seconds. It gets an EX lock on os_lockres and checks sequence number 190883273932SSrinivas Eeda * stored in LVB. If the sequence number has changed, it means some other 190983273932SSrinivas Eeda * node has done the scan. This node skips the scan and tracks the 191083273932SSrinivas Eeda * sequence number. If the sequence number didn't change, it means a scan 191183273932SSrinivas Eeda * hasn't happened. The node queues a scan and increments the 191283273932SSrinivas Eeda * sequence number in the LVB. 191383273932SSrinivas Eeda */ 1914b519ea6dSJoseph Qi static void ocfs2_queue_orphan_scan(struct ocfs2_super *osb) 191583273932SSrinivas Eeda { 191683273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 191783273932SSrinivas Eeda int status, i; 191883273932SSrinivas Eeda u32 seqno = 0; 191983273932SSrinivas Eeda 192083273932SSrinivas Eeda os = &osb->osb_orphan_scan; 192183273932SSrinivas Eeda 1922692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 1923692684e1SSunil Mushran goto out; 1924692684e1SSunil Mushran 1925b4107950STao Ma trace_ocfs2_queue_orphan_scan_begin(os->os_count, os->os_seqno, 1926b4107950STao Ma atomic_read(&os->os_state)); 1927b4107950STao Ma 1928df152c24SSunil Mushran status = ocfs2_orphan_scan_lock(osb, &seqno); 192983273932SSrinivas Eeda if (status < 0) { 193083273932SSrinivas Eeda if (status != -EAGAIN) 193183273932SSrinivas Eeda mlog_errno(status); 193283273932SSrinivas Eeda goto out; 193383273932SSrinivas Eeda } 193483273932SSrinivas Eeda 1935692684e1SSunil Mushran /* Do no queue the tasks if the volume is being umounted */ 1936692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 1937692684e1SSunil Mushran goto unlock; 1938692684e1SSunil Mushran 193983273932SSrinivas Eeda if (os->os_seqno != seqno) { 194083273932SSrinivas Eeda os->os_seqno = seqno; 194183273932SSrinivas Eeda goto unlock; 194283273932SSrinivas Eeda } 194383273932SSrinivas Eeda 194483273932SSrinivas Eeda for (i = 0; i < osb->max_slots; i++) 194583273932SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, i, NULL, NULL, 1946ed460cffSJoseph Qi NULL, ORPHAN_NO_NEED_TRUNCATE); 194783273932SSrinivas Eeda /* 194883273932SSrinivas Eeda * We queued a recovery on orphan slots, increment the sequence 194983273932SSrinivas Eeda * number and update LVB so other node will skip the scan for a while 195083273932SSrinivas Eeda */ 195183273932SSrinivas Eeda seqno++; 195215633a22SSrinivas Eeda os->os_count++; 195315633a22SSrinivas Eeda os->os_scantime = CURRENT_TIME; 195483273932SSrinivas Eeda unlock: 1955df152c24SSunil Mushran ocfs2_orphan_scan_unlock(osb, seqno); 195683273932SSrinivas Eeda out: 1957b4107950STao Ma trace_ocfs2_queue_orphan_scan_end(os->os_count, os->os_seqno, 1958b4107950STao Ma atomic_read(&os->os_state)); 195983273932SSrinivas Eeda return; 196083273932SSrinivas Eeda } 196183273932SSrinivas Eeda 196283273932SSrinivas Eeda /* Worker task that gets fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT millsec */ 1963b519ea6dSJoseph Qi static void ocfs2_orphan_scan_work(struct work_struct *work) 196483273932SSrinivas Eeda { 196583273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 196683273932SSrinivas Eeda struct ocfs2_super *osb; 196783273932SSrinivas Eeda 196883273932SSrinivas Eeda os = container_of(work, struct ocfs2_orphan_scan, 196983273932SSrinivas Eeda os_orphan_scan_work.work); 197083273932SSrinivas Eeda osb = os->os_osb; 197183273932SSrinivas Eeda 197283273932SSrinivas Eeda mutex_lock(&os->os_lock); 197383273932SSrinivas Eeda ocfs2_queue_orphan_scan(osb); 1974692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) 197540f165f4STao Ma queue_delayed_work(ocfs2_wq, &os->os_orphan_scan_work, 197683273932SSrinivas Eeda ocfs2_orphan_scan_timeout()); 197783273932SSrinivas Eeda mutex_unlock(&os->os_lock); 197883273932SSrinivas Eeda } 197983273932SSrinivas Eeda 198083273932SSrinivas Eeda void ocfs2_orphan_scan_stop(struct ocfs2_super *osb) 198183273932SSrinivas Eeda { 198283273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 198383273932SSrinivas Eeda 198483273932SSrinivas Eeda os = &osb->osb_orphan_scan; 1985df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) { 1986692684e1SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); 198783273932SSrinivas Eeda mutex_lock(&os->os_lock); 198883273932SSrinivas Eeda cancel_delayed_work(&os->os_orphan_scan_work); 198983273932SSrinivas Eeda mutex_unlock(&os->os_lock); 199083273932SSrinivas Eeda } 1991df152c24SSunil Mushran } 199283273932SSrinivas Eeda 1993df152c24SSunil Mushran void ocfs2_orphan_scan_init(struct ocfs2_super *osb) 199483273932SSrinivas Eeda { 199583273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 199683273932SSrinivas Eeda 199783273932SSrinivas Eeda os = &osb->osb_orphan_scan; 199883273932SSrinivas Eeda os->os_osb = osb; 199915633a22SSrinivas Eeda os->os_count = 0; 20003211949fSSunil Mushran os->os_seqno = 0; 200183273932SSrinivas Eeda mutex_init(&os->os_lock); 2002df152c24SSunil Mushran INIT_DELAYED_WORK(&os->os_orphan_scan_work, ocfs2_orphan_scan_work); 20038b712cd5SJeff Mahoney } 200483273932SSrinivas Eeda 20058b712cd5SJeff Mahoney void ocfs2_orphan_scan_start(struct ocfs2_super *osb) 20068b712cd5SJeff Mahoney { 20078b712cd5SJeff Mahoney struct ocfs2_orphan_scan *os; 20088b712cd5SJeff Mahoney 20098b712cd5SJeff Mahoney os = &osb->osb_orphan_scan; 20108b712cd5SJeff Mahoney os->os_scantime = CURRENT_TIME; 2011df152c24SSunil Mushran if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb)) 2012df152c24SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); 2013df152c24SSunil Mushran else { 2014df152c24SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_ACTIVE); 201540f165f4STao Ma queue_delayed_work(ocfs2_wq, &os->os_orphan_scan_work, 201683273932SSrinivas Eeda ocfs2_orphan_scan_timeout()); 2017df152c24SSunil Mushran } 201883273932SSrinivas Eeda } 201983273932SSrinivas Eeda 20205eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv { 20213704412bSAl Viro struct dir_context ctx; 20225eae5b96SMark Fasheh struct inode *head; 20235eae5b96SMark Fasheh struct ocfs2_super *osb; 202430edc43cSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type; 20255eae5b96SMark Fasheh }; 20265eae5b96SMark Fasheh 2027ac7576f4SMiklos Szeredi static int ocfs2_orphan_filldir(struct dir_context *ctx, const char *name, 2028ac7576f4SMiklos Szeredi int name_len, loff_t pos, u64 ino, 2029ac7576f4SMiklos Szeredi unsigned type) 20305eae5b96SMark Fasheh { 2031ac7576f4SMiklos Szeredi struct ocfs2_orphan_filldir_priv *p = 2032ac7576f4SMiklos Szeredi container_of(ctx, struct ocfs2_orphan_filldir_priv, ctx); 20335eae5b96SMark Fasheh struct inode *iter; 20345eae5b96SMark Fasheh 20355eae5b96SMark Fasheh if (name_len == 1 && !strncmp(".", name, 1)) 20365eae5b96SMark Fasheh return 0; 20375eae5b96SMark Fasheh if (name_len == 2 && !strncmp("..", name, 2)) 20385eae5b96SMark Fasheh return 0; 20395eae5b96SMark Fasheh 204030edc43cSJoseph Qi /* do not include dio entry in case of orphan scan */ 204130edc43cSJoseph Qi if ((p->orphan_reco_type == ORPHAN_NO_NEED_TRUNCATE) && 204230edc43cSJoseph Qi (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX, 204330edc43cSJoseph Qi OCFS2_DIO_ORPHAN_PREFIX_LEN))) 204430edc43cSJoseph Qi return 0; 204530edc43cSJoseph Qi 20465eae5b96SMark Fasheh /* Skip bad inodes so that recovery can continue */ 20475eae5b96SMark Fasheh iter = ocfs2_iget(p->osb, ino, 20485fa0613eSJan Kara OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0); 20495eae5b96SMark Fasheh if (IS_ERR(iter)) 20505eae5b96SMark Fasheh return 0; 20515eae5b96SMark Fasheh 205293d911fcSJoseph Qi if (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX, 205393d911fcSJoseph Qi OCFS2_DIO_ORPHAN_PREFIX_LEN)) 205493d911fcSJoseph Qi OCFS2_I(iter)->ip_flags |= OCFS2_INODE_DIO_ORPHAN_ENTRY; 205593d911fcSJoseph Qi 2056ed460cffSJoseph Qi /* Skip inodes which are already added to recover list, since dio may 2057ed460cffSJoseph Qi * happen concurrently with unlink/rename */ 2058ed460cffSJoseph Qi if (OCFS2_I(iter)->ip_next_orphan) { 2059ed460cffSJoseph Qi iput(iter); 2060ed460cffSJoseph Qi return 0; 2061ed460cffSJoseph Qi } 2062ed460cffSJoseph Qi 2063b4107950STao Ma trace_ocfs2_orphan_filldir((unsigned long long)OCFS2_I(iter)->ip_blkno); 20645eae5b96SMark Fasheh /* No locking is required for the next_orphan queue as there 20655eae5b96SMark Fasheh * is only ever a single process doing orphan recovery. */ 20665eae5b96SMark Fasheh OCFS2_I(iter)->ip_next_orphan = p->head; 20675eae5b96SMark Fasheh p->head = iter; 20685eae5b96SMark Fasheh 20695eae5b96SMark Fasheh return 0; 20705eae5b96SMark Fasheh } 20715eae5b96SMark Fasheh 2072b4df6ed8SMark Fasheh static int ocfs2_queue_orphans(struct ocfs2_super *osb, 2073b4df6ed8SMark Fasheh int slot, 207430edc43cSJoseph Qi struct inode **head, 207530edc43cSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 2076ccd979bdSMark Fasheh { 2077b4df6ed8SMark Fasheh int status; 2078ccd979bdSMark Fasheh struct inode *orphan_dir_inode = NULL; 20793704412bSAl Viro struct ocfs2_orphan_filldir_priv priv = { 20803704412bSAl Viro .ctx.actor = ocfs2_orphan_filldir, 20813704412bSAl Viro .osb = osb, 208230edc43cSJoseph Qi .head = *head, 208330edc43cSJoseph Qi .orphan_reco_type = orphan_reco_type 20843704412bSAl Viro }; 2085ccd979bdSMark Fasheh 2086ccd979bdSMark Fasheh orphan_dir_inode = ocfs2_get_system_file_inode(osb, 2087ccd979bdSMark Fasheh ORPHAN_DIR_SYSTEM_INODE, 2088ccd979bdSMark Fasheh slot); 2089ccd979bdSMark Fasheh if (!orphan_dir_inode) { 2090ccd979bdSMark Fasheh status = -ENOENT; 2091ccd979bdSMark Fasheh mlog_errno(status); 2092b4df6ed8SMark Fasheh return status; 2093ccd979bdSMark Fasheh } 2094ccd979bdSMark Fasheh 20951b1dcc1bSJes Sorensen mutex_lock(&orphan_dir_inode->i_mutex); 2096e63aecb6SMark Fasheh status = ocfs2_inode_lock(orphan_dir_inode, NULL, 0); 2097ccd979bdSMark Fasheh if (status < 0) { 2098ccd979bdSMark Fasheh mlog_errno(status); 2099ccd979bdSMark Fasheh goto out; 2100ccd979bdSMark Fasheh } 2101ccd979bdSMark Fasheh 21023704412bSAl Viro status = ocfs2_dir_foreach(orphan_dir_inode, &priv.ctx); 21035eae5b96SMark Fasheh if (status) { 2104ccd979bdSMark Fasheh mlog_errno(status); 2105a86370fbSMark Fasheh goto out_cluster; 2106ccd979bdSMark Fasheh } 2107ccd979bdSMark Fasheh 21085eae5b96SMark Fasheh *head = priv.head; 2109ccd979bdSMark Fasheh 2110a86370fbSMark Fasheh out_cluster: 2111e63aecb6SMark Fasheh ocfs2_inode_unlock(orphan_dir_inode, 0); 2112b4df6ed8SMark Fasheh out: 2113b4df6ed8SMark Fasheh mutex_unlock(&orphan_dir_inode->i_mutex); 2114ccd979bdSMark Fasheh iput(orphan_dir_inode); 2115b4df6ed8SMark Fasheh return status; 2116b4df6ed8SMark Fasheh } 2117b4df6ed8SMark Fasheh 2118b4df6ed8SMark Fasheh static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb, 2119b4df6ed8SMark Fasheh int slot) 2120b4df6ed8SMark Fasheh { 2121b4df6ed8SMark Fasheh int ret; 2122b4df6ed8SMark Fasheh 2123b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2124b4df6ed8SMark Fasheh ret = !osb->osb_orphan_wipes[slot]; 2125b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2126b4df6ed8SMark Fasheh return ret; 2127b4df6ed8SMark Fasheh } 2128b4df6ed8SMark Fasheh 2129b4df6ed8SMark Fasheh static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb, 2130b4df6ed8SMark Fasheh int slot) 2131b4df6ed8SMark Fasheh { 2132b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2133b4df6ed8SMark Fasheh /* Mark ourselves such that new processes in delete_inode() 2134b4df6ed8SMark Fasheh * know to quit early. */ 2135b4df6ed8SMark Fasheh ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 2136b4df6ed8SMark Fasheh while (osb->osb_orphan_wipes[slot]) { 2137b4df6ed8SMark Fasheh /* If any processes are already in the middle of an 2138b4df6ed8SMark Fasheh * orphan wipe on this dir, then we need to wait for 2139b4df6ed8SMark Fasheh * them. */ 2140b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2141b4df6ed8SMark Fasheh wait_event_interruptible(osb->osb_wipe_event, 2142b4df6ed8SMark Fasheh ocfs2_orphan_recovery_can_continue(osb, slot)); 2143b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2144b4df6ed8SMark Fasheh } 2145b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2146b4df6ed8SMark Fasheh } 2147b4df6ed8SMark Fasheh 2148b4df6ed8SMark Fasheh static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb, 2149b4df6ed8SMark Fasheh int slot) 2150b4df6ed8SMark Fasheh { 2151b4df6ed8SMark Fasheh ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 2152b4df6ed8SMark Fasheh } 2153b4df6ed8SMark Fasheh 2154b4df6ed8SMark Fasheh /* 2155b4df6ed8SMark Fasheh * Orphan recovery. Each mounted node has it's own orphan dir which we 2156b4df6ed8SMark Fasheh * must run during recovery. Our strategy here is to build a list of 2157b4df6ed8SMark Fasheh * the inodes in the orphan dir and iget/iput them. The VFS does 2158b4df6ed8SMark Fasheh * (most) of the rest of the work. 2159b4df6ed8SMark Fasheh * 2160b4df6ed8SMark Fasheh * Orphan recovery can happen at any time, not just mount so we have a 2161b4df6ed8SMark Fasheh * couple of extra considerations. 2162b4df6ed8SMark Fasheh * 2163b4df6ed8SMark Fasheh * - We grab as many inodes as we can under the orphan dir lock - 2164b4df6ed8SMark Fasheh * doing iget() outside the orphan dir risks getting a reference on 2165b4df6ed8SMark Fasheh * an invalid inode. 2166b4df6ed8SMark Fasheh * - We must be sure not to deadlock with other processes on the 2167b4df6ed8SMark Fasheh * system wanting to run delete_inode(). This can happen when they go 2168b4df6ed8SMark Fasheh * to lock the orphan dir and the orphan recovery process attempts to 2169b4df6ed8SMark Fasheh * iget() inside the orphan dir lock. This can be avoided by 2170b4df6ed8SMark Fasheh * advertising our state to ocfs2_delete_inode(). 2171b4df6ed8SMark Fasheh */ 2172b4df6ed8SMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 2173ed460cffSJoseph Qi int slot, 2174ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 2175b4df6ed8SMark Fasheh { 2176b4df6ed8SMark Fasheh int ret = 0; 2177b4df6ed8SMark Fasheh struct inode *inode = NULL; 2178b4df6ed8SMark Fasheh struct inode *iter; 2179b4df6ed8SMark Fasheh struct ocfs2_inode_info *oi; 2180cf1776a9SJoseph Qi struct buffer_head *di_bh = NULL; 2181cf1776a9SJoseph Qi struct ocfs2_dinode *di = NULL; 2182b4df6ed8SMark Fasheh 2183b4107950STao Ma trace_ocfs2_recover_orphans(slot); 2184b4df6ed8SMark Fasheh 2185b4df6ed8SMark Fasheh ocfs2_mark_recovering_orphan_dir(osb, slot); 218630edc43cSJoseph Qi ret = ocfs2_queue_orphans(osb, slot, &inode, orphan_reco_type); 2187b4df6ed8SMark Fasheh ocfs2_clear_recovering_orphan_dir(osb, slot); 2188b4df6ed8SMark Fasheh 2189b4df6ed8SMark Fasheh /* Error here should be noted, but we want to continue with as 2190b4df6ed8SMark Fasheh * many queued inodes as we've got. */ 2191b4df6ed8SMark Fasheh if (ret) 2192b4df6ed8SMark Fasheh mlog_errno(ret); 2193ccd979bdSMark Fasheh 2194ccd979bdSMark Fasheh while (inode) { 2195ccd979bdSMark Fasheh oi = OCFS2_I(inode); 2196b4107950STao Ma trace_ocfs2_recover_orphans_iput( 2197b4107950STao Ma (unsigned long long)oi->ip_blkno); 2198ccd979bdSMark Fasheh 2199ccd979bdSMark Fasheh iter = oi->ip_next_orphan; 2200ed460cffSJoseph Qi oi->ip_next_orphan = NULL; 2201ccd979bdSMark Fasheh 220293d911fcSJoseph Qi if (oi->ip_flags & OCFS2_INODE_DIO_ORPHAN_ENTRY) { 2203512f62acSJoseph Qi mutex_lock(&inode->i_mutex); 2204cf1776a9SJoseph Qi ret = ocfs2_rw_lock(inode, 1); 2205cf1776a9SJoseph Qi if (ret < 0) { 2206cf1776a9SJoseph Qi mlog_errno(ret); 220793d911fcSJoseph Qi goto unlock_mutex; 2208cf1776a9SJoseph Qi } 2209ed460cffSJoseph Qi /* 2210ed460cffSJoseph Qi * We need to take and drop the inode lock to 2211ed460cffSJoseph Qi * force read inode from disk. 2212ed460cffSJoseph Qi */ 2213cf1776a9SJoseph Qi ret = ocfs2_inode_lock(inode, &di_bh, 1); 2214ed460cffSJoseph Qi if (ret) { 2215ed460cffSJoseph Qi mlog_errno(ret); 2216cf1776a9SJoseph Qi goto unlock_rw; 2217ed460cffSJoseph Qi } 2218cf1776a9SJoseph Qi 2219cf1776a9SJoseph Qi di = (struct ocfs2_dinode *)di_bh->b_data; 2220ed460cffSJoseph Qi 222193d911fcSJoseph Qi if (di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL)) { 2222ed460cffSJoseph Qi ret = ocfs2_truncate_file(inode, di_bh, 2223ed460cffSJoseph Qi i_size_read(inode)); 2224ed460cffSJoseph Qi if (ret < 0) { 2225ed460cffSJoseph Qi if (ret != -ENOSPC) 2226ed460cffSJoseph Qi mlog_errno(ret); 2227cf1776a9SJoseph Qi goto unlock_inode; 2228ed460cffSJoseph Qi } 2229ed460cffSJoseph Qi 223093d911fcSJoseph Qi ret = ocfs2_del_inode_from_orphan(osb, inode, 223193d911fcSJoseph Qi di_bh, 0, 0); 2232ed460cffSJoseph Qi if (ret) 2233ed460cffSJoseph Qi mlog_errno(ret); 223493d911fcSJoseph Qi } 2235cf1776a9SJoseph Qi unlock_inode: 2236cf1776a9SJoseph Qi ocfs2_inode_unlock(inode, 1); 2237512f62acSJoseph Qi brelse(di_bh); 2238512f62acSJoseph Qi di_bh = NULL; 2239cf1776a9SJoseph Qi unlock_rw: 2240cf1776a9SJoseph Qi ocfs2_rw_unlock(inode, 1); 224193d911fcSJoseph Qi unlock_mutex: 2242512f62acSJoseph Qi mutex_unlock(&inode->i_mutex); 224393d911fcSJoseph Qi 224493d911fcSJoseph Qi /* clear dio flag in ocfs2_inode_info */ 224593d911fcSJoseph Qi oi->ip_flags &= ~OCFS2_INODE_DIO_ORPHAN_ENTRY; 224693d911fcSJoseph Qi } else { 224793d911fcSJoseph Qi spin_lock(&oi->ip_lock); 224893d911fcSJoseph Qi /* Set the proper information to get us going into 224993d911fcSJoseph Qi * ocfs2_delete_inode. */ 225093d911fcSJoseph Qi oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; 225193d911fcSJoseph Qi spin_unlock(&oi->ip_lock); 225293d911fcSJoseph Qi } 225393d911fcSJoseph Qi 2254ccd979bdSMark Fasheh iput(inode); 2255ccd979bdSMark Fasheh inode = iter; 2256ccd979bdSMark Fasheh } 2257ccd979bdSMark Fasheh 2258b4df6ed8SMark Fasheh return ret; 2259ccd979bdSMark Fasheh } 2260ccd979bdSMark Fasheh 226119ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota) 2262ccd979bdSMark Fasheh { 2263ccd979bdSMark Fasheh /* This check is good because ocfs2 will wait on our recovery 2264ccd979bdSMark Fasheh * thread before changing it to something other than MOUNTED 2265ccd979bdSMark Fasheh * or DISABLED. */ 2266ccd979bdSMark Fasheh wait_event(osb->osb_mount_event, 226719ece546SJan Kara (!quota && atomic_read(&osb->vol_state) == VOLUME_MOUNTED) || 226819ece546SJan Kara atomic_read(&osb->vol_state) == VOLUME_MOUNTED_QUOTAS || 2269ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_DISABLED); 2270ccd979bdSMark Fasheh 2271ccd979bdSMark Fasheh /* If there's an error on mount, then we may never get to the 2272ccd979bdSMark Fasheh * MOUNTED flag, but this is set right before 2273ccd979bdSMark Fasheh * dismount_volume() so we can trust it. */ 2274ccd979bdSMark Fasheh if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) { 2275b4107950STao Ma trace_ocfs2_wait_on_mount(VOLUME_DISABLED); 2276ccd979bdSMark Fasheh mlog(0, "mount error, exiting!\n"); 2277ccd979bdSMark Fasheh return -EBUSY; 2278ccd979bdSMark Fasheh } 2279ccd979bdSMark Fasheh 2280ccd979bdSMark Fasheh return 0; 2281ccd979bdSMark Fasheh } 2282ccd979bdSMark Fasheh 2283ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg) 2284ccd979bdSMark Fasheh { 2285ccd979bdSMark Fasheh int status; 2286ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 2287ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 2288ccd979bdSMark Fasheh 2289ccd979bdSMark Fasheh /* we can trust j_num_trans here because _should_stop() is only set in 2290ccd979bdSMark Fasheh * shutdown and nobody other than ourselves should be able to start 2291ccd979bdSMark Fasheh * transactions. committing on shutdown might take a few iterations 2292ccd979bdSMark Fasheh * as final transactions put deleted inodes on the list */ 2293ccd979bdSMark Fasheh while (!(kthread_should_stop() && 2294ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) == 0)) { 2295ccd979bdSMark Fasheh 2296745ae8baSMark Fasheh wait_event_interruptible(osb->checkpoint_event, 2297ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) 2298745ae8baSMark Fasheh || kthread_should_stop()); 2299ccd979bdSMark Fasheh 2300ccd979bdSMark Fasheh status = ocfs2_commit_cache(osb); 230155b465b6SJoseph Qi if (status < 0) { 230255b465b6SJoseph Qi static unsigned long abort_warn_time; 230355b465b6SJoseph Qi 230455b465b6SJoseph Qi /* Warn about this once per minute */ 230555b465b6SJoseph Qi if (printk_timed_ratelimit(&abort_warn_time, 60*HZ)) 230655b465b6SJoseph Qi mlog(ML_ERROR, "status = %d, journal is " 230755b465b6SJoseph Qi "already aborted.\n", status); 230855b465b6SJoseph Qi /* 230955b465b6SJoseph Qi * After ocfs2_commit_cache() fails, j_num_trans has a 231055b465b6SJoseph Qi * non-zero value. Sleep here to avoid a busy-wait 231155b465b6SJoseph Qi * loop. 231255b465b6SJoseph Qi */ 231355b465b6SJoseph Qi msleep_interruptible(1000); 231455b465b6SJoseph Qi } 2315ccd979bdSMark Fasheh 2316ccd979bdSMark Fasheh if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ 2317ccd979bdSMark Fasheh mlog(ML_KTHREAD, 2318ccd979bdSMark Fasheh "commit_thread: %u transactions pending on " 2319ccd979bdSMark Fasheh "shutdown\n", 2320ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans)); 2321ccd979bdSMark Fasheh } 2322ccd979bdSMark Fasheh } 2323ccd979bdSMark Fasheh 2324ccd979bdSMark Fasheh return 0; 2325ccd979bdSMark Fasheh } 2326ccd979bdSMark Fasheh 2327539d8264SSunil Mushran /* Reads all the journal inodes without taking any cluster locks. Used 2328539d8264SSunil Mushran * for hard readonly access to determine whether any journal requires 2329539d8264SSunil Mushran * recovery. Also used to refresh the recovery generation numbers after 2330539d8264SSunil Mushran * a journal has been recovered by another node. 2331539d8264SSunil Mushran */ 2332ccd979bdSMark Fasheh int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) 2333ccd979bdSMark Fasheh { 2334ccd979bdSMark Fasheh int ret = 0; 2335ccd979bdSMark Fasheh unsigned int slot; 2336539d8264SSunil Mushran struct buffer_head *di_bh = NULL; 2337ccd979bdSMark Fasheh struct ocfs2_dinode *di; 2338539d8264SSunil Mushran int journal_dirty = 0; 2339ccd979bdSMark Fasheh 2340ccd979bdSMark Fasheh for(slot = 0; slot < osb->max_slots; slot++) { 2341539d8264SSunil Mushran ret = ocfs2_read_journal_inode(osb, slot, &di_bh, NULL); 2342539d8264SSunil Mushran if (ret) { 2343ccd979bdSMark Fasheh mlog_errno(ret); 2344ccd979bdSMark Fasheh goto out; 2345ccd979bdSMark Fasheh } 2346ccd979bdSMark Fasheh 2347ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) di_bh->b_data; 2348ccd979bdSMark Fasheh 2349539d8264SSunil Mushran osb->slot_recovery_generations[slot] = 2350539d8264SSunil Mushran ocfs2_get_recovery_generation(di); 2351539d8264SSunil Mushran 2352ccd979bdSMark Fasheh if (le32_to_cpu(di->id1.journal1.ij_flags) & 2353ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL) 2354539d8264SSunil Mushran journal_dirty = 1; 2355ccd979bdSMark Fasheh 2356ccd979bdSMark Fasheh brelse(di_bh); 2357539d8264SSunil Mushran di_bh = NULL; 2358ccd979bdSMark Fasheh } 2359ccd979bdSMark Fasheh 2360ccd979bdSMark Fasheh out: 2361539d8264SSunil Mushran if (journal_dirty) 2362539d8264SSunil Mushran ret = -EROFS; 2363ccd979bdSMark Fasheh return ret; 2364ccd979bdSMark Fasheh } 2365