1328970deSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 3ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 4ccd979bdSMark Fasheh * 5ccd979bdSMark Fasheh * journal.c 6ccd979bdSMark Fasheh * 7ccd979bdSMark Fasheh * Defines functions of journalling api 8ccd979bdSMark Fasheh * 9ccd979bdSMark Fasheh * Copyright (C) 2003, 2004 Oracle. All rights reserved. 10ccd979bdSMark Fasheh */ 11ccd979bdSMark Fasheh 12ccd979bdSMark Fasheh #include <linux/fs.h> 13ccd979bdSMark Fasheh #include <linux/types.h> 14ccd979bdSMark Fasheh #include <linux/slab.h> 15ccd979bdSMark Fasheh #include <linux/highmem.h> 16ccd979bdSMark Fasheh #include <linux/kthread.h> 1783273932SSrinivas Eeda #include <linux/time.h> 1883273932SSrinivas Eeda #include <linux/random.h> 1955b465b6SJoseph Qi #include <linux/delay.h> 20ccd979bdSMark Fasheh 21ccd979bdSMark Fasheh #include <cluster/masklog.h> 22ccd979bdSMark Fasheh 23ccd979bdSMark Fasheh #include "ocfs2.h" 24ccd979bdSMark Fasheh 25ccd979bdSMark Fasheh #include "alloc.h" 2650655ae9SJoel Becker #include "blockcheck.h" 27316f4b9fSMark Fasheh #include "dir.h" 28ccd979bdSMark Fasheh #include "dlmglue.h" 29ccd979bdSMark Fasheh #include "extent_map.h" 30ccd979bdSMark Fasheh #include "heartbeat.h" 31ccd979bdSMark Fasheh #include "inode.h" 32ccd979bdSMark Fasheh #include "journal.h" 33ccd979bdSMark Fasheh #include "localalloc.h" 34ccd979bdSMark Fasheh #include "slot_map.h" 35ccd979bdSMark Fasheh #include "super.h" 36ccd979bdSMark Fasheh #include "sysfile.h" 370cf2f763SJoel Becker #include "uptodate.h" 382205363dSJan Kara #include "quota.h" 39ed460cffSJoseph Qi #include "file.h" 40ed460cffSJoseph Qi #include "namei.h" 41ccd979bdSMark Fasheh 42ccd979bdSMark Fasheh #include "buffer_head_io.h" 43b4107950STao Ma #include "ocfs2_trace.h" 44ccd979bdSMark Fasheh 4534af946aSIngo Molnar DEFINE_SPINLOCK(trans_inc_lock); 46ccd979bdSMark Fasheh 4783273932SSrinivas Eeda #define ORPHAN_SCAN_SCHEDULE_TIMEOUT 300000 4883273932SSrinivas Eeda 49ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode); 50ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 512205363dSJan Kara int node_num, int slot_num); 52ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg); 53ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb); 5419ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota); 55ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 56539d8264SSunil Mushran int dirty, int replayed); 57ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 58ccd979bdSMark Fasheh int slot_num); 59ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 60ed460cffSJoseph Qi int slot, 61ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type); 62ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg); 639140db04SSrinivas Eeda static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 649140db04SSrinivas Eeda int slot_num, 659140db04SSrinivas Eeda struct ocfs2_dinode *la_dinode, 669140db04SSrinivas Eeda struct ocfs2_dinode *tl_dinode, 67ed460cffSJoseph Qi struct ocfs2_quota_recovery *qrec, 68ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type); 69ccd979bdSMark Fasheh 7019ece546SJan Kara static inline int ocfs2_wait_on_mount(struct ocfs2_super *osb) 7119ece546SJan Kara { 7219ece546SJan Kara return __ocfs2_wait_on_mount(osb, 0); 7319ece546SJan Kara } 7419ece546SJan Kara 7519ece546SJan Kara static inline int ocfs2_wait_on_quotas(struct ocfs2_super *osb) 7619ece546SJan Kara { 7719ece546SJan Kara return __ocfs2_wait_on_mount(osb, 1); 7819ece546SJan Kara } 7919ece546SJan Kara 809140db04SSrinivas Eeda /* 819140db04SSrinivas Eeda * This replay_map is to track online/offline slots, so we could recover 829140db04SSrinivas Eeda * offline slots during recovery and mount 839140db04SSrinivas Eeda */ 849140db04SSrinivas Eeda 859140db04SSrinivas Eeda enum ocfs2_replay_state { 869140db04SSrinivas Eeda REPLAY_UNNEEDED = 0, /* Replay is not needed, so ignore this map */ 879140db04SSrinivas Eeda REPLAY_NEEDED, /* Replay slots marked in rm_replay_slots */ 889140db04SSrinivas Eeda REPLAY_DONE /* Replay was already queued */ 899140db04SSrinivas Eeda }; 909140db04SSrinivas Eeda 919140db04SSrinivas Eeda struct ocfs2_replay_map { 929140db04SSrinivas Eeda unsigned int rm_slots; 939140db04SSrinivas Eeda enum ocfs2_replay_state rm_state; 949140db04SSrinivas Eeda unsigned char rm_replay_slots[0]; 959140db04SSrinivas Eeda }; 969140db04SSrinivas Eeda 97b519ea6dSJoseph Qi static void ocfs2_replay_map_set_state(struct ocfs2_super *osb, int state) 989140db04SSrinivas Eeda { 999140db04SSrinivas Eeda if (!osb->replay_map) 1009140db04SSrinivas Eeda return; 1019140db04SSrinivas Eeda 1029140db04SSrinivas Eeda /* If we've already queued the replay, we don't have any more to do */ 1039140db04SSrinivas Eeda if (osb->replay_map->rm_state == REPLAY_DONE) 1049140db04SSrinivas Eeda return; 1059140db04SSrinivas Eeda 1069140db04SSrinivas Eeda osb->replay_map->rm_state = state; 1079140db04SSrinivas Eeda } 1089140db04SSrinivas Eeda 1099140db04SSrinivas Eeda int ocfs2_compute_replay_slots(struct ocfs2_super *osb) 1109140db04SSrinivas Eeda { 1119140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map; 1129140db04SSrinivas Eeda int i, node_num; 1139140db04SSrinivas Eeda 1149140db04SSrinivas Eeda /* If replay map is already set, we don't do it again */ 1159140db04SSrinivas Eeda if (osb->replay_map) 1169140db04SSrinivas Eeda return 0; 1179140db04SSrinivas Eeda 1189140db04SSrinivas Eeda replay_map = kzalloc(sizeof(struct ocfs2_replay_map) + 1199140db04SSrinivas Eeda (osb->max_slots * sizeof(char)), GFP_KERNEL); 1209140db04SSrinivas Eeda 1219140db04SSrinivas Eeda if (!replay_map) { 1229140db04SSrinivas Eeda mlog_errno(-ENOMEM); 1239140db04SSrinivas Eeda return -ENOMEM; 1249140db04SSrinivas Eeda } 1259140db04SSrinivas Eeda 1269140db04SSrinivas Eeda spin_lock(&osb->osb_lock); 1279140db04SSrinivas Eeda 1289140db04SSrinivas Eeda replay_map->rm_slots = osb->max_slots; 1299140db04SSrinivas Eeda replay_map->rm_state = REPLAY_UNNEEDED; 1309140db04SSrinivas Eeda 1319140db04SSrinivas Eeda /* set rm_replay_slots for offline slot(s) */ 1329140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) { 1339140db04SSrinivas Eeda if (ocfs2_slot_to_node_num_locked(osb, i, &node_num) == -ENOENT) 1349140db04SSrinivas Eeda replay_map->rm_replay_slots[i] = 1; 1359140db04SSrinivas Eeda } 1369140db04SSrinivas Eeda 1379140db04SSrinivas Eeda osb->replay_map = replay_map; 1389140db04SSrinivas Eeda spin_unlock(&osb->osb_lock); 1399140db04SSrinivas Eeda return 0; 1409140db04SSrinivas Eeda } 1419140db04SSrinivas Eeda 142b519ea6dSJoseph Qi static void ocfs2_queue_replay_slots(struct ocfs2_super *osb, 143ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 1449140db04SSrinivas Eeda { 1459140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1469140db04SSrinivas Eeda int i; 1479140db04SSrinivas Eeda 1489140db04SSrinivas Eeda if (!replay_map) 1499140db04SSrinivas Eeda return; 1509140db04SSrinivas Eeda 1519140db04SSrinivas Eeda if (replay_map->rm_state != REPLAY_NEEDED) 1529140db04SSrinivas Eeda return; 1539140db04SSrinivas Eeda 1549140db04SSrinivas Eeda for (i = 0; i < replay_map->rm_slots; i++) 1559140db04SSrinivas Eeda if (replay_map->rm_replay_slots[i]) 1569140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, i, NULL, 157ed460cffSJoseph Qi NULL, NULL, 158ed460cffSJoseph Qi orphan_reco_type); 1599140db04SSrinivas Eeda replay_map->rm_state = REPLAY_DONE; 1609140db04SSrinivas Eeda } 1619140db04SSrinivas Eeda 162b519ea6dSJoseph Qi static void ocfs2_free_replay_slots(struct ocfs2_super *osb) 1639140db04SSrinivas Eeda { 1649140db04SSrinivas Eeda struct ocfs2_replay_map *replay_map = osb->replay_map; 1659140db04SSrinivas Eeda 1669140db04SSrinivas Eeda if (!osb->replay_map) 1679140db04SSrinivas Eeda return; 1689140db04SSrinivas Eeda 1699140db04SSrinivas Eeda kfree(replay_map); 1709140db04SSrinivas Eeda osb->replay_map = NULL; 1719140db04SSrinivas Eeda } 1729140db04SSrinivas Eeda 173553abd04SJoel Becker int ocfs2_recovery_init(struct ocfs2_super *osb) 174553abd04SJoel Becker { 175553abd04SJoel Becker struct ocfs2_recovery_map *rm; 176553abd04SJoel Becker 177553abd04SJoel Becker mutex_init(&osb->recovery_lock); 178553abd04SJoel Becker osb->disable_recovery = 0; 179553abd04SJoel Becker osb->recovery_thread_task = NULL; 180553abd04SJoel Becker init_waitqueue_head(&osb->recovery_event); 181553abd04SJoel Becker 182553abd04SJoel Becker rm = kzalloc(sizeof(struct ocfs2_recovery_map) + 183553abd04SJoel Becker osb->max_slots * sizeof(unsigned int), 184553abd04SJoel Becker GFP_KERNEL); 185553abd04SJoel Becker if (!rm) { 186553abd04SJoel Becker mlog_errno(-ENOMEM); 187553abd04SJoel Becker return -ENOMEM; 188553abd04SJoel Becker } 189553abd04SJoel Becker 190553abd04SJoel Becker rm->rm_entries = (unsigned int *)((char *)rm + 191553abd04SJoel Becker sizeof(struct ocfs2_recovery_map)); 192553abd04SJoel Becker osb->recovery_map = rm; 193553abd04SJoel Becker 194553abd04SJoel Becker return 0; 195553abd04SJoel Becker } 196553abd04SJoel Becker 197553abd04SJoel Becker /* we can't grab the goofy sem lock from inside wait_event, so we use 198553abd04SJoel Becker * memory barriers to make sure that we'll see the null task before 199553abd04SJoel Becker * being woken up */ 200553abd04SJoel Becker static int ocfs2_recovery_thread_running(struct ocfs2_super *osb) 201553abd04SJoel Becker { 202553abd04SJoel Becker mb(); 203553abd04SJoel Becker return osb->recovery_thread_task != NULL; 204553abd04SJoel Becker } 205553abd04SJoel Becker 206553abd04SJoel Becker void ocfs2_recovery_exit(struct ocfs2_super *osb) 207553abd04SJoel Becker { 208553abd04SJoel Becker struct ocfs2_recovery_map *rm; 209553abd04SJoel Becker 210553abd04SJoel Becker /* disable any new recovery threads and wait for any currently 211553abd04SJoel Becker * running ones to exit. Do this before setting the vol_state. */ 212553abd04SJoel Becker mutex_lock(&osb->recovery_lock); 213553abd04SJoel Becker osb->disable_recovery = 1; 214553abd04SJoel Becker mutex_unlock(&osb->recovery_lock); 215553abd04SJoel Becker wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); 216553abd04SJoel Becker 217553abd04SJoel Becker /* At this point, we know that no more recovery threads can be 218553abd04SJoel Becker * launched, so wait for any recovery completion work to 219553abd04SJoel Becker * complete. */ 22035ddf78eSjiangyiwen flush_workqueue(osb->ocfs2_wq); 221553abd04SJoel Becker 222553abd04SJoel Becker /* 223553abd04SJoel Becker * Now that recovery is shut down, and the osb is about to be 224553abd04SJoel Becker * freed, the osb_lock is not taken here. 225553abd04SJoel Becker */ 226553abd04SJoel Becker rm = osb->recovery_map; 227553abd04SJoel Becker /* XXX: Should we bug if there are dirty entries? */ 228553abd04SJoel Becker 229553abd04SJoel Becker kfree(rm); 230553abd04SJoel Becker } 231553abd04SJoel Becker 232553abd04SJoel Becker static int __ocfs2_recovery_map_test(struct ocfs2_super *osb, 233553abd04SJoel Becker unsigned int node_num) 234553abd04SJoel Becker { 235553abd04SJoel Becker int i; 236553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 237553abd04SJoel Becker 238553abd04SJoel Becker assert_spin_locked(&osb->osb_lock); 239553abd04SJoel Becker 240553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 241553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 242553abd04SJoel Becker return 1; 243553abd04SJoel Becker } 244553abd04SJoel Becker 245553abd04SJoel Becker return 0; 246553abd04SJoel Becker } 247553abd04SJoel Becker 248553abd04SJoel Becker /* Behaves like test-and-set. Returns the previous value */ 249553abd04SJoel Becker static int ocfs2_recovery_map_set(struct ocfs2_super *osb, 250553abd04SJoel Becker unsigned int node_num) 251553abd04SJoel Becker { 252553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 253553abd04SJoel Becker 254553abd04SJoel Becker spin_lock(&osb->osb_lock); 255553abd04SJoel Becker if (__ocfs2_recovery_map_test(osb, node_num)) { 256553abd04SJoel Becker spin_unlock(&osb->osb_lock); 257553abd04SJoel Becker return 1; 258553abd04SJoel Becker } 259553abd04SJoel Becker 260553abd04SJoel Becker /* XXX: Can this be exploited? Not from o2dlm... */ 261553abd04SJoel Becker BUG_ON(rm->rm_used >= osb->max_slots); 262553abd04SJoel Becker 263553abd04SJoel Becker rm->rm_entries[rm->rm_used] = node_num; 264553abd04SJoel Becker rm->rm_used++; 265553abd04SJoel Becker spin_unlock(&osb->osb_lock); 266553abd04SJoel Becker 267553abd04SJoel Becker return 0; 268553abd04SJoel Becker } 269553abd04SJoel Becker 270553abd04SJoel Becker static void ocfs2_recovery_map_clear(struct ocfs2_super *osb, 271553abd04SJoel Becker unsigned int node_num) 272553abd04SJoel Becker { 273553abd04SJoel Becker int i; 274553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 275553abd04SJoel Becker 276553abd04SJoel Becker spin_lock(&osb->osb_lock); 277553abd04SJoel Becker 278553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 279553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 280553abd04SJoel Becker break; 281553abd04SJoel Becker } 282553abd04SJoel Becker 283553abd04SJoel Becker if (i < rm->rm_used) { 284553abd04SJoel Becker /* XXX: be careful with the pointer math */ 285553abd04SJoel Becker memmove(&(rm->rm_entries[i]), &(rm->rm_entries[i + 1]), 286553abd04SJoel Becker (rm->rm_used - i - 1) * sizeof(unsigned int)); 287553abd04SJoel Becker rm->rm_used--; 288553abd04SJoel Becker } 289553abd04SJoel Becker 290553abd04SJoel Becker spin_unlock(&osb->osb_lock); 291553abd04SJoel Becker } 292553abd04SJoel Becker 293ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb) 294ccd979bdSMark Fasheh { 295ccd979bdSMark Fasheh int status = 0; 296ccd979bdSMark Fasheh unsigned int flushed; 297ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 298ccd979bdSMark Fasheh 299ccd979bdSMark Fasheh journal = osb->journal; 300ccd979bdSMark Fasheh 301ccd979bdSMark Fasheh /* Flush all pending commits and checkpoint the journal. */ 302ccd979bdSMark Fasheh down_write(&journal->j_trans_barrier); 303ccd979bdSMark Fasheh 304b4107950STao Ma flushed = atomic_read(&journal->j_num_trans); 305b4107950STao Ma trace_ocfs2_commit_cache_begin(flushed); 306b4107950STao Ma if (flushed == 0) { 307ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 308ccd979bdSMark Fasheh goto finally; 309ccd979bdSMark Fasheh } 310ccd979bdSMark Fasheh 3112b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 3122b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 3132b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 314ccd979bdSMark Fasheh if (status < 0) { 315ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 316ccd979bdSMark Fasheh mlog_errno(status); 317ccd979bdSMark Fasheh goto finally; 318ccd979bdSMark Fasheh } 319ccd979bdSMark Fasheh 320f9c57adaSTao Ma ocfs2_inc_trans_id(journal); 321ccd979bdSMark Fasheh 322ccd979bdSMark Fasheh flushed = atomic_read(&journal->j_num_trans); 323ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 324ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 325ccd979bdSMark Fasheh 326b4107950STao Ma trace_ocfs2_commit_cache_end(journal->j_trans_id, flushed); 327ccd979bdSMark Fasheh 32834d024f8SMark Fasheh ocfs2_wake_downconvert_thread(osb); 329ccd979bdSMark Fasheh wake_up(&journal->j_checkpointed); 330ccd979bdSMark Fasheh finally: 331ccd979bdSMark Fasheh return status; 332ccd979bdSMark Fasheh } 333ccd979bdSMark Fasheh 3341fabe148SMark Fasheh handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs) 335ccd979bdSMark Fasheh { 336ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 3371fabe148SMark Fasheh handle_t *handle; 338ccd979bdSMark Fasheh 339ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb || !osb->journal->j_journal); 340ccd979bdSMark Fasheh 34165eff9ccSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 34265eff9ccSMark Fasheh return ERR_PTR(-EROFS); 343ccd979bdSMark Fasheh 344ccd979bdSMark Fasheh BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); 345ccd979bdSMark Fasheh BUG_ON(max_buffs <= 0); 346ccd979bdSMark Fasheh 34790e86a63SJan Kara /* Nested transaction? Just return the handle... */ 34890e86a63SJan Kara if (journal_current_handle()) 34990e86a63SJan Kara return jbd2_journal_start(journal, max_buffs); 350ccd979bdSMark Fasheh 351fef6925cSJan Kara sb_start_intwrite(osb->sb); 352fef6925cSJan Kara 353ccd979bdSMark Fasheh down_read(&osb->journal->j_trans_barrier); 354ccd979bdSMark Fasheh 3552b4e30fbSJoel Becker handle = jbd2_journal_start(journal, max_buffs); 3561fabe148SMark Fasheh if (IS_ERR(handle)) { 357ccd979bdSMark Fasheh up_read(&osb->journal->j_trans_barrier); 358fef6925cSJan Kara sb_end_intwrite(osb->sb); 359ccd979bdSMark Fasheh 3601fabe148SMark Fasheh mlog_errno(PTR_ERR(handle)); 361ccd979bdSMark Fasheh 362ccd979bdSMark Fasheh if (is_journal_aborted(journal)) { 3637ecef14aSJoe Perches ocfs2_abort(osb->sb, "Detected aborted journal\n"); 3641fabe148SMark Fasheh handle = ERR_PTR(-EROFS); 365ccd979bdSMark Fasheh } 366c271c5c2SSunil Mushran } else { 367c271c5c2SSunil Mushran if (!ocfs2_mount_local(osb)) 368ccd979bdSMark Fasheh atomic_inc(&(osb->journal->j_num_trans)); 369c271c5c2SSunil Mushran } 370ccd979bdSMark Fasheh 371ccd979bdSMark Fasheh return handle; 372ccd979bdSMark Fasheh } 373ccd979bdSMark Fasheh 3741fabe148SMark Fasheh int ocfs2_commit_trans(struct ocfs2_super *osb, 3751fabe148SMark Fasheh handle_t *handle) 376ccd979bdSMark Fasheh { 37790e86a63SJan Kara int ret, nested; 37802dc1af4SMark Fasheh struct ocfs2_journal *journal = osb->journal; 379ccd979bdSMark Fasheh 380ccd979bdSMark Fasheh BUG_ON(!handle); 381ccd979bdSMark Fasheh 38290e86a63SJan Kara nested = handle->h_ref > 1; 3832b4e30fbSJoel Becker ret = jbd2_journal_stop(handle); 3841fabe148SMark Fasheh if (ret < 0) 3851fabe148SMark Fasheh mlog_errno(ret); 386ccd979bdSMark Fasheh 387fef6925cSJan Kara if (!nested) { 388ccd979bdSMark Fasheh up_read(&journal->j_trans_barrier); 389fef6925cSJan Kara sb_end_intwrite(osb->sb); 390fef6925cSJan Kara } 391ccd979bdSMark Fasheh 3921fabe148SMark Fasheh return ret; 393ccd979bdSMark Fasheh } 394ccd979bdSMark Fasheh 395ccd979bdSMark Fasheh /* 396c901fb00STao Ma * 'nblocks' is what you want to add to the current transaction. 397ccd979bdSMark Fasheh * 3982b4e30fbSJoel Becker * This might call jbd2_journal_restart() which will commit dirty buffers 399e8aed345SMark Fasheh * and then restart the transaction. Before calling 400e8aed345SMark Fasheh * ocfs2_extend_trans(), any changed blocks should have been 401e8aed345SMark Fasheh * dirtied. After calling it, all blocks which need to be changed must 402e8aed345SMark Fasheh * go through another set of journal_access/journal_dirty calls. 403e8aed345SMark Fasheh * 404ccd979bdSMark Fasheh * WARNING: This will not release any semaphores or disk locks taken 405ccd979bdSMark Fasheh * during the transaction, so make sure they were taken *before* 406ccd979bdSMark Fasheh * start_trans or we'll have ordering deadlocks. 407ccd979bdSMark Fasheh * 408ccd979bdSMark Fasheh * WARNING2: Note that we do *not* drop j_trans_barrier here. This is 409ccd979bdSMark Fasheh * good because transaction ids haven't yet been recorded on the 410ccd979bdSMark Fasheh * cluster locks associated with this handle. 411ccd979bdSMark Fasheh */ 4121fc58146SMark Fasheh int ocfs2_extend_trans(handle_t *handle, int nblocks) 413ccd979bdSMark Fasheh { 414c901fb00STao Ma int status, old_nblocks; 415ccd979bdSMark Fasheh 416ccd979bdSMark Fasheh BUG_ON(!handle); 417c901fb00STao Ma BUG_ON(nblocks < 0); 418ccd979bdSMark Fasheh 419c901fb00STao Ma if (!nblocks) 420c901fb00STao Ma return 0; 421c901fb00STao Ma 422c901fb00STao Ma old_nblocks = handle->h_buffer_credits; 423ccd979bdSMark Fasheh 424b4107950STao Ma trace_ocfs2_extend_trans(old_nblocks, nblocks); 425ccd979bdSMark Fasheh 426e407e397SJoel Becker #ifdef CONFIG_OCFS2_DEBUG_FS 4270879c584SMark Fasheh status = 1; 4280879c584SMark Fasheh #else 4292b4e30fbSJoel Becker status = jbd2_journal_extend(handle, nblocks); 430ccd979bdSMark Fasheh if (status < 0) { 431ccd979bdSMark Fasheh mlog_errno(status); 432ccd979bdSMark Fasheh goto bail; 433ccd979bdSMark Fasheh } 4340879c584SMark Fasheh #endif 435ccd979bdSMark Fasheh 436ccd979bdSMark Fasheh if (status > 0) { 437b4107950STao Ma trace_ocfs2_extend_trans_restart(old_nblocks + nblocks); 438c901fb00STao Ma status = jbd2_journal_restart(handle, 439c901fb00STao Ma old_nblocks + nblocks); 440ccd979bdSMark Fasheh if (status < 0) { 441ccd979bdSMark Fasheh mlog_errno(status); 442ccd979bdSMark Fasheh goto bail; 443ccd979bdSMark Fasheh } 44401ddf1e1SMark Fasheh } 445ccd979bdSMark Fasheh 446ccd979bdSMark Fasheh status = 0; 447ccd979bdSMark Fasheh bail: 448ccd979bdSMark Fasheh return status; 449ccd979bdSMark Fasheh } 450ccd979bdSMark Fasheh 4512b1e55c3SYounger Liu /* 4522b1e55c3SYounger Liu * If we have fewer than thresh credits, extend by OCFS2_MAX_TRANS_DATA. 4532b1e55c3SYounger Liu * If that fails, restart the transaction & regain write access for the 4542b1e55c3SYounger Liu * buffer head which is used for metadata modifications. 4552b1e55c3SYounger Liu * Taken from Ext4: extend_or_restart_transaction() 4562b1e55c3SYounger Liu */ 4572b1e55c3SYounger Liu int ocfs2_allocate_extend_trans(handle_t *handle, int thresh) 4582b1e55c3SYounger Liu { 4592b1e55c3SYounger Liu int status, old_nblks; 4602b1e55c3SYounger Liu 4612b1e55c3SYounger Liu BUG_ON(!handle); 4622b1e55c3SYounger Liu 4632b1e55c3SYounger Liu old_nblks = handle->h_buffer_credits; 4642b1e55c3SYounger Liu trace_ocfs2_allocate_extend_trans(old_nblks, thresh); 4652b1e55c3SYounger Liu 4662b1e55c3SYounger Liu if (old_nblks < thresh) 4672b1e55c3SYounger Liu return 0; 4682b1e55c3SYounger Liu 4692b1e55c3SYounger Liu status = jbd2_journal_extend(handle, OCFS2_MAX_TRANS_DATA); 4702b1e55c3SYounger Liu if (status < 0) { 4712b1e55c3SYounger Liu mlog_errno(status); 4722b1e55c3SYounger Liu goto bail; 4732b1e55c3SYounger Liu } 4742b1e55c3SYounger Liu 4752b1e55c3SYounger Liu if (status > 0) { 4762b1e55c3SYounger Liu status = jbd2_journal_restart(handle, OCFS2_MAX_TRANS_DATA); 4772b1e55c3SYounger Liu if (status < 0) 4782b1e55c3SYounger Liu mlog_errno(status); 4792b1e55c3SYounger Liu } 4802b1e55c3SYounger Liu 4812b1e55c3SYounger Liu bail: 4822b1e55c3SYounger Liu return status; 4832b1e55c3SYounger Liu } 4842b1e55c3SYounger Liu 4852b1e55c3SYounger Liu 48650655ae9SJoel Becker struct ocfs2_triggers { 48750655ae9SJoel Becker struct jbd2_buffer_trigger_type ot_triggers; 48850655ae9SJoel Becker int ot_offset; 48950655ae9SJoel Becker }; 49050655ae9SJoel Becker 49150655ae9SJoel Becker static inline struct ocfs2_triggers *to_ocfs2_trigger(struct jbd2_buffer_trigger_type *triggers) 49250655ae9SJoel Becker { 49350655ae9SJoel Becker return container_of(triggers, struct ocfs2_triggers, ot_triggers); 49450655ae9SJoel Becker } 49550655ae9SJoel Becker 49613ceef09SJan Kara static void ocfs2_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 49750655ae9SJoel Becker struct buffer_head *bh, 49850655ae9SJoel Becker void *data, size_t size) 49950655ae9SJoel Becker { 50050655ae9SJoel Becker struct ocfs2_triggers *ot = to_ocfs2_trigger(triggers); 50150655ae9SJoel Becker 50250655ae9SJoel Becker /* 50350655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 50450655ae9SJoel Becker * must unconditionally compute the ecc data. 50550655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 50650655ae9SJoel Becker * metaecc is enabled. 50750655ae9SJoel Becker */ 50850655ae9SJoel Becker ocfs2_block_check_compute(data, size, data + ot->ot_offset); 50950655ae9SJoel Becker } 51050655ae9SJoel Becker 51150655ae9SJoel Becker /* 51250655ae9SJoel Becker * Quota blocks have their own trigger because the struct ocfs2_block_check 51350655ae9SJoel Becker * offset depends on the blocksize. 51450655ae9SJoel Becker */ 51513ceef09SJan Kara static void ocfs2_dq_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 51650655ae9SJoel Becker struct buffer_head *bh, 51750655ae9SJoel Becker void *data, size_t size) 51850655ae9SJoel Becker { 51950655ae9SJoel Becker struct ocfs2_disk_dqtrailer *dqt = 52050655ae9SJoel Becker ocfs2_block_dqtrailer(size, data); 52150655ae9SJoel Becker 52250655ae9SJoel Becker /* 52350655ae9SJoel Becker * We aren't guaranteed to have the superblock here, so we 52450655ae9SJoel Becker * must unconditionally compute the ecc data. 52550655ae9SJoel Becker * __ocfs2_journal_access() will only set the triggers if 52650655ae9SJoel Becker * metaecc is enabled. 52750655ae9SJoel Becker */ 52850655ae9SJoel Becker ocfs2_block_check_compute(data, size, &dqt->dq_check); 52950655ae9SJoel Becker } 53050655ae9SJoel Becker 531c175a518SJoel Becker /* 532c175a518SJoel Becker * Directory blocks also have their own trigger because the 533c175a518SJoel Becker * struct ocfs2_block_check offset depends on the blocksize. 534c175a518SJoel Becker */ 53513ceef09SJan Kara static void ocfs2_db_frozen_trigger(struct jbd2_buffer_trigger_type *triggers, 536c175a518SJoel Becker struct buffer_head *bh, 537c175a518SJoel Becker void *data, size_t size) 538c175a518SJoel Becker { 539c175a518SJoel Becker struct ocfs2_dir_block_trailer *trailer = 540c175a518SJoel Becker ocfs2_dir_trailer_from_size(size, data); 541c175a518SJoel Becker 542c175a518SJoel Becker /* 543c175a518SJoel Becker * We aren't guaranteed to have the superblock here, so we 544c175a518SJoel Becker * must unconditionally compute the ecc data. 545c175a518SJoel Becker * __ocfs2_journal_access() will only set the triggers if 546c175a518SJoel Becker * metaecc is enabled. 547c175a518SJoel Becker */ 548c175a518SJoel Becker ocfs2_block_check_compute(data, size, &trailer->db_check); 549c175a518SJoel Becker } 550c175a518SJoel Becker 55150655ae9SJoel Becker static void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *triggers, 55250655ae9SJoel Becker struct buffer_head *bh) 55350655ae9SJoel Becker { 55450655ae9SJoel Becker mlog(ML_ERROR, 55550655ae9SJoel Becker "ocfs2_abort_trigger called by JBD2. bh = 0x%lx, " 55650655ae9SJoel Becker "bh->b_blocknr = %llu\n", 55750655ae9SJoel Becker (unsigned long)bh, 55850655ae9SJoel Becker (unsigned long long)bh->b_blocknr); 55950655ae9SJoel Becker 56074e364adSXue jiufei ocfs2_error(bh->b_bdev->bd_super, 56150655ae9SJoel Becker "JBD2 has aborted our journal, ocfs2 cannot continue\n"); 56250655ae9SJoel Becker } 56350655ae9SJoel Becker 56450655ae9SJoel Becker static struct ocfs2_triggers di_triggers = { 56550655ae9SJoel Becker .ot_triggers = { 56613ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 56750655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 56850655ae9SJoel Becker }, 56950655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_dinode, i_check), 57050655ae9SJoel Becker }; 57150655ae9SJoel Becker 57250655ae9SJoel Becker static struct ocfs2_triggers eb_triggers = { 57350655ae9SJoel Becker .ot_triggers = { 57413ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 57550655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 57650655ae9SJoel Becker }, 57750655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_extent_block, h_check), 57850655ae9SJoel Becker }; 57950655ae9SJoel Becker 58093c97087STao Ma static struct ocfs2_triggers rb_triggers = { 58193c97087STao Ma .ot_triggers = { 58213ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 58393c97087STao Ma .t_abort = ocfs2_abort_trigger, 58493c97087STao Ma }, 58593c97087STao Ma .ot_offset = offsetof(struct ocfs2_refcount_block, rf_check), 58693c97087STao Ma }; 58793c97087STao Ma 58850655ae9SJoel Becker static struct ocfs2_triggers gd_triggers = { 58950655ae9SJoel Becker .ot_triggers = { 59013ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 59150655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 59250655ae9SJoel Becker }, 59350655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_group_desc, bg_check), 59450655ae9SJoel Becker }; 59550655ae9SJoel Becker 596c175a518SJoel Becker static struct ocfs2_triggers db_triggers = { 597c175a518SJoel Becker .ot_triggers = { 59813ceef09SJan Kara .t_frozen = ocfs2_db_frozen_trigger, 599c175a518SJoel Becker .t_abort = ocfs2_abort_trigger, 600c175a518SJoel Becker }, 601c175a518SJoel Becker }; 602c175a518SJoel Becker 60350655ae9SJoel Becker static struct ocfs2_triggers xb_triggers = { 60450655ae9SJoel Becker .ot_triggers = { 60513ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 60650655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 60750655ae9SJoel Becker }, 60850655ae9SJoel Becker .ot_offset = offsetof(struct ocfs2_xattr_block, xb_check), 60950655ae9SJoel Becker }; 61050655ae9SJoel Becker 61150655ae9SJoel Becker static struct ocfs2_triggers dq_triggers = { 61250655ae9SJoel Becker .ot_triggers = { 61313ceef09SJan Kara .t_frozen = ocfs2_dq_frozen_trigger, 61450655ae9SJoel Becker .t_abort = ocfs2_abort_trigger, 61550655ae9SJoel Becker }, 61650655ae9SJoel Becker }; 61750655ae9SJoel Becker 6189b7895efSMark Fasheh static struct ocfs2_triggers dr_triggers = { 6199b7895efSMark Fasheh .ot_triggers = { 62013ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 6219b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 6229b7895efSMark Fasheh }, 6239b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_root_block, dr_check), 6249b7895efSMark Fasheh }; 6259b7895efSMark Fasheh 6269b7895efSMark Fasheh static struct ocfs2_triggers dl_triggers = { 6279b7895efSMark Fasheh .ot_triggers = { 62813ceef09SJan Kara .t_frozen = ocfs2_frozen_trigger, 6299b7895efSMark Fasheh .t_abort = ocfs2_abort_trigger, 6309b7895efSMark Fasheh }, 6319b7895efSMark Fasheh .ot_offset = offsetof(struct ocfs2_dx_leaf, dl_check), 6329b7895efSMark Fasheh }; 6339b7895efSMark Fasheh 63450655ae9SJoel Becker static int __ocfs2_journal_access(handle_t *handle, 6350cf2f763SJoel Becker struct ocfs2_caching_info *ci, 636ccd979bdSMark Fasheh struct buffer_head *bh, 63750655ae9SJoel Becker struct ocfs2_triggers *triggers, 638ccd979bdSMark Fasheh int type) 639ccd979bdSMark Fasheh { 640ccd979bdSMark Fasheh int status; 6410cf2f763SJoel Becker struct ocfs2_super *osb = 6420cf2f763SJoel Becker OCFS2_SB(ocfs2_metadata_cache_get_super(ci)); 643ccd979bdSMark Fasheh 6440cf2f763SJoel Becker BUG_ON(!ci || !ci->ci_ops); 645ccd979bdSMark Fasheh BUG_ON(!handle); 646ccd979bdSMark Fasheh BUG_ON(!bh); 647ccd979bdSMark Fasheh 648b4107950STao Ma trace_ocfs2_journal_access( 649b4107950STao Ma (unsigned long long)ocfs2_metadata_cache_owner(ci), 650b4107950STao Ma (unsigned long long)bh->b_blocknr, type, bh->b_size); 651ccd979bdSMark Fasheh 652ccd979bdSMark Fasheh /* we can safely remove this assertion after testing. */ 653ccd979bdSMark Fasheh if (!buffer_uptodate(bh)) { 654ccd979bdSMark Fasheh mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); 655d984187eSpiaojun mlog(ML_ERROR, "b_blocknr=%llu, b_state=0x%lx\n", 656d984187eSpiaojun (unsigned long long)bh->b_blocknr, bh->b_state); 657acf8fdbeSJoseph Qi 658acf8fdbeSJoseph Qi lock_buffer(bh); 659acf8fdbeSJoseph Qi /* 660d984187eSpiaojun * A previous transaction with a couple of buffer heads fail 661d984187eSpiaojun * to checkpoint, so all the bhs are marked as BH_Write_EIO. 662d984187eSpiaojun * For current transaction, the bh is just among those error 663d984187eSpiaojun * bhs which previous transaction handle. We can't just clear 664d984187eSpiaojun * its BH_Write_EIO and reuse directly, since other bhs are 665d984187eSpiaojun * not written to disk yet and that will cause metadata 666d984187eSpiaojun * inconsistency. So we should set fs read-only to avoid 667d984187eSpiaojun * further damage. 668acf8fdbeSJoseph Qi */ 669acf8fdbeSJoseph Qi if (buffer_write_io_error(bh) && !buffer_uptodate(bh)) { 670acf8fdbeSJoseph Qi unlock_buffer(bh); 671d984187eSpiaojun return ocfs2_error(osb->sb, "A previous attempt to " 672d984187eSpiaojun "write this buffer head failed\n"); 673acf8fdbeSJoseph Qi } 674acf8fdbeSJoseph Qi unlock_buffer(bh); 675ccd979bdSMark Fasheh } 676ccd979bdSMark Fasheh 6770cf2f763SJoel Becker /* Set the current transaction information on the ci so 678ccd979bdSMark Fasheh * that the locking code knows whether it can drop it's locks 6790cf2f763SJoel Becker * on this ci or not. We're protected from the commit 680ccd979bdSMark Fasheh * thread updating the current transaction id until 681ccd979bdSMark Fasheh * ocfs2_commit_trans() because ocfs2_start_trans() took 682ccd979bdSMark Fasheh * j_trans_barrier for us. */ 6830cf2f763SJoel Becker ocfs2_set_ci_lock_trans(osb->journal, ci); 684ccd979bdSMark Fasheh 6850cf2f763SJoel Becker ocfs2_metadata_cache_io_lock(ci); 686ccd979bdSMark Fasheh switch (type) { 687ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_CREATE: 688ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_WRITE: 6892b4e30fbSJoel Becker status = jbd2_journal_get_write_access(handle, bh); 690ccd979bdSMark Fasheh break; 691ccd979bdSMark Fasheh 692ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_UNDO: 6932b4e30fbSJoel Becker status = jbd2_journal_get_undo_access(handle, bh); 694ccd979bdSMark Fasheh break; 695ccd979bdSMark Fasheh 696ccd979bdSMark Fasheh default: 697ccd979bdSMark Fasheh status = -EINVAL; 698af901ca1SAndré Goddard Rosa mlog(ML_ERROR, "Unknown access type!\n"); 699ccd979bdSMark Fasheh } 7000cf2f763SJoel Becker if (!status && ocfs2_meta_ecc(osb) && triggers) 70150655ae9SJoel Becker jbd2_journal_set_triggers(bh, &triggers->ot_triggers); 7020cf2f763SJoel Becker ocfs2_metadata_cache_io_unlock(ci); 703ccd979bdSMark Fasheh 704ccd979bdSMark Fasheh if (status < 0) 705ccd979bdSMark Fasheh mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", 706ccd979bdSMark Fasheh status, type); 707ccd979bdSMark Fasheh 708ccd979bdSMark Fasheh return status; 709ccd979bdSMark Fasheh } 710ccd979bdSMark Fasheh 7110cf2f763SJoel Becker int ocfs2_journal_access_di(handle_t *handle, struct ocfs2_caching_info *ci, 71250655ae9SJoel Becker struct buffer_head *bh, int type) 71350655ae9SJoel Becker { 7140cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &di_triggers, type); 71550655ae9SJoel Becker } 71650655ae9SJoel Becker 7170cf2f763SJoel Becker int ocfs2_journal_access_eb(handle_t *handle, struct ocfs2_caching_info *ci, 71850655ae9SJoel Becker struct buffer_head *bh, int type) 71950655ae9SJoel Becker { 7200cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &eb_triggers, type); 72150655ae9SJoel Becker } 72250655ae9SJoel Becker 72393c97087STao Ma int ocfs2_journal_access_rb(handle_t *handle, struct ocfs2_caching_info *ci, 72493c97087STao Ma struct buffer_head *bh, int type) 72593c97087STao Ma { 72693c97087STao Ma return __ocfs2_journal_access(handle, ci, bh, &rb_triggers, 72793c97087STao Ma type); 72893c97087STao Ma } 72993c97087STao Ma 7300cf2f763SJoel Becker int ocfs2_journal_access_gd(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, &gd_triggers, type); 73450655ae9SJoel Becker } 73550655ae9SJoel Becker 7360cf2f763SJoel Becker int ocfs2_journal_access_db(handle_t *handle, struct ocfs2_caching_info *ci, 73750655ae9SJoel Becker struct buffer_head *bh, int type) 73850655ae9SJoel Becker { 7390cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &db_triggers, type); 74050655ae9SJoel Becker } 74150655ae9SJoel Becker 7420cf2f763SJoel Becker int ocfs2_journal_access_xb(handle_t *handle, struct ocfs2_caching_info *ci, 74350655ae9SJoel Becker struct buffer_head *bh, int type) 74450655ae9SJoel Becker { 7450cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &xb_triggers, type); 74650655ae9SJoel Becker } 74750655ae9SJoel Becker 7480cf2f763SJoel Becker int ocfs2_journal_access_dq(handle_t *handle, struct ocfs2_caching_info *ci, 74950655ae9SJoel Becker struct buffer_head *bh, int type) 75050655ae9SJoel Becker { 7510cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dq_triggers, type); 75250655ae9SJoel Becker } 75350655ae9SJoel Becker 7540cf2f763SJoel Becker int ocfs2_journal_access_dr(handle_t *handle, struct ocfs2_caching_info *ci, 7559b7895efSMark Fasheh struct buffer_head *bh, int type) 7569b7895efSMark Fasheh { 7570cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dr_triggers, type); 7589b7895efSMark Fasheh } 7599b7895efSMark Fasheh 7600cf2f763SJoel Becker int ocfs2_journal_access_dl(handle_t *handle, struct ocfs2_caching_info *ci, 7619b7895efSMark Fasheh struct buffer_head *bh, int type) 7629b7895efSMark Fasheh { 7630cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, &dl_triggers, type); 7649b7895efSMark Fasheh } 7659b7895efSMark Fasheh 7660cf2f763SJoel Becker int ocfs2_journal_access(handle_t *handle, struct ocfs2_caching_info *ci, 76750655ae9SJoel Becker struct buffer_head *bh, int type) 76850655ae9SJoel Becker { 7690cf2f763SJoel Becker return __ocfs2_journal_access(handle, ci, bh, NULL, type); 77050655ae9SJoel Becker } 77150655ae9SJoel Becker 772ec20cec7SJoel Becker void ocfs2_journal_dirty(handle_t *handle, struct buffer_head *bh) 773ccd979bdSMark Fasheh { 774ccd979bdSMark Fasheh int status; 775ccd979bdSMark Fasheh 776b4107950STao Ma trace_ocfs2_journal_dirty((unsigned long long)bh->b_blocknr); 777ccd979bdSMark Fasheh 7782b4e30fbSJoel Becker status = jbd2_journal_dirty_metadata(handle, bh); 779e272e7f0SJoseph Qi if (status) { 780e272e7f0SJoseph Qi mlog_errno(status); 781e272e7f0SJoseph Qi if (!is_handle_aborted(handle)) { 782e272e7f0SJoseph Qi journal_t *journal = handle->h_transaction->t_journal; 783e272e7f0SJoseph Qi struct super_block *sb = bh->b_bdev->bd_super; 784e272e7f0SJoseph Qi 785e272e7f0SJoseph Qi mlog(ML_ERROR, "jbd2_journal_dirty_metadata failed. " 786e272e7f0SJoseph Qi "Aborting transaction and journal.\n"); 787e272e7f0SJoseph Qi handle->h_err = status; 788e272e7f0SJoseph Qi jbd2_journal_abort_handle(handle); 789e272e7f0SJoseph Qi jbd2_journal_abort(journal, status); 790e272e7f0SJoseph Qi ocfs2_abort(sb, "Journal already aborted.\n"); 791e272e7f0SJoseph Qi } 792e272e7f0SJoseph Qi } 793ccd979bdSMark Fasheh } 794ccd979bdSMark Fasheh 7952b4e30fbSJoel Becker #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE) 796ccd979bdSMark Fasheh 797ccd979bdSMark Fasheh void ocfs2_set_journal_params(struct ocfs2_super *osb) 798ccd979bdSMark Fasheh { 799ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 800d147b3d6SMark Fasheh unsigned long commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; 801d147b3d6SMark Fasheh 802d147b3d6SMark Fasheh if (osb->osb_commit_interval) 803d147b3d6SMark Fasheh commit_interval = osb->osb_commit_interval; 804ccd979bdSMark Fasheh 805a931da6aSTheodore Ts'o write_lock(&journal->j_state_lock); 806d147b3d6SMark Fasheh journal->j_commit_interval = commit_interval; 807ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) 8082b4e30fbSJoel Becker journal->j_flags |= JBD2_BARRIER; 809ccd979bdSMark Fasheh else 8102b4e30fbSJoel Becker journal->j_flags &= ~JBD2_BARRIER; 811a931da6aSTheodore Ts'o write_unlock(&journal->j_state_lock); 812ccd979bdSMark Fasheh } 813ccd979bdSMark Fasheh 814ccd979bdSMark Fasheh int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty) 815ccd979bdSMark Fasheh { 816ccd979bdSMark Fasheh int status = -1; 817ccd979bdSMark Fasheh struct inode *inode = NULL; /* the journal inode */ 818ccd979bdSMark Fasheh journal_t *j_journal = NULL; 819ccd979bdSMark Fasheh struct ocfs2_dinode *di = NULL; 820ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 821ccd979bdSMark Fasheh struct ocfs2_super *osb; 822e63aecb6SMark Fasheh int inode_lock = 0; 823ccd979bdSMark Fasheh 824ccd979bdSMark Fasheh BUG_ON(!journal); 825ccd979bdSMark Fasheh 826ccd979bdSMark Fasheh osb = journal->j_osb; 827ccd979bdSMark Fasheh 828ccd979bdSMark Fasheh /* already have the inode for our journal */ 829ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 830ccd979bdSMark Fasheh osb->slot_num); 831ccd979bdSMark Fasheh if (inode == NULL) { 832ccd979bdSMark Fasheh status = -EACCES; 833ccd979bdSMark Fasheh mlog_errno(status); 834ccd979bdSMark Fasheh goto done; 835ccd979bdSMark Fasheh } 836ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 837ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 838ccd979bdSMark Fasheh iput(inode); 839ccd979bdSMark Fasheh inode = NULL; 840ccd979bdSMark Fasheh status = -EACCES; 841ccd979bdSMark Fasheh goto done; 842ccd979bdSMark Fasheh } 843ccd979bdSMark Fasheh 844ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 845ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count++; 846ccd979bdSMark Fasheh 8476eff5790SMark Fasheh /* Skip recovery waits here - journal inode metadata never 8486eff5790SMark Fasheh * changes in a live cluster so it can be considered an 8496eff5790SMark Fasheh * exception to the rule. */ 850e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 851ccd979bdSMark Fasheh if (status < 0) { 852ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 853ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not get lock on journal!\n"); 854ccd979bdSMark Fasheh goto done; 855ccd979bdSMark Fasheh } 856ccd979bdSMark Fasheh 857e63aecb6SMark Fasheh inode_lock = 1; 858ccd979bdSMark Fasheh di = (struct ocfs2_dinode *)bh->b_data; 859ccd979bdSMark Fasheh 860f17c20ddSJunxiao Bi if (i_size_read(inode) < OCFS2_MIN_JOURNAL_SIZE) { 861ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", 862f17c20ddSJunxiao Bi i_size_read(inode)); 863ccd979bdSMark Fasheh status = -EINVAL; 864ccd979bdSMark Fasheh goto done; 865ccd979bdSMark Fasheh } 866ccd979bdSMark Fasheh 867f17c20ddSJunxiao Bi trace_ocfs2_journal_init(i_size_read(inode), 868b4107950STao Ma (unsigned long long)inode->i_blocks, 869b4107950STao Ma OCFS2_I(inode)->ip_clusters); 870ccd979bdSMark Fasheh 871ccd979bdSMark Fasheh /* call the kernels journal init function now */ 8722b4e30fbSJoel Becker j_journal = jbd2_journal_init_inode(inode); 873ccd979bdSMark Fasheh if (j_journal == NULL) { 874ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 875ccd979bdSMark Fasheh status = -EINVAL; 876ccd979bdSMark Fasheh goto done; 877ccd979bdSMark Fasheh } 878ccd979bdSMark Fasheh 879b4107950STao Ma trace_ocfs2_journal_init_maxlen(j_journal->j_maxlen); 880ccd979bdSMark Fasheh 881ccd979bdSMark Fasheh *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & 882ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL); 883ccd979bdSMark Fasheh 884ccd979bdSMark Fasheh journal->j_journal = j_journal; 885ccd979bdSMark Fasheh journal->j_inode = inode; 886ccd979bdSMark Fasheh journal->j_bh = bh; 887ccd979bdSMark Fasheh 888ccd979bdSMark Fasheh ocfs2_set_journal_params(osb); 889ccd979bdSMark Fasheh 890ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_LOADED; 891ccd979bdSMark Fasheh 892ccd979bdSMark Fasheh status = 0; 893ccd979bdSMark Fasheh done: 894ccd979bdSMark Fasheh if (status < 0) { 895e63aecb6SMark Fasheh if (inode_lock) 896e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 897ccd979bdSMark Fasheh brelse(bh); 898ccd979bdSMark Fasheh if (inode) { 899ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 900ccd979bdSMark Fasheh iput(inode); 901ccd979bdSMark Fasheh } 902ccd979bdSMark Fasheh } 903ccd979bdSMark Fasheh 904ccd979bdSMark Fasheh return status; 905ccd979bdSMark Fasheh } 906ccd979bdSMark Fasheh 907539d8264SSunil Mushran static void ocfs2_bump_recovery_generation(struct ocfs2_dinode *di) 908539d8264SSunil Mushran { 909539d8264SSunil Mushran le32_add_cpu(&(di->id1.journal1.ij_recovery_generation), 1); 910539d8264SSunil Mushran } 911539d8264SSunil Mushran 912539d8264SSunil Mushran static u32 ocfs2_get_recovery_generation(struct ocfs2_dinode *di) 913539d8264SSunil Mushran { 914539d8264SSunil Mushran return le32_to_cpu(di->id1.journal1.ij_recovery_generation); 915539d8264SSunil Mushran } 916539d8264SSunil Mushran 917ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 918539d8264SSunil Mushran int dirty, int replayed) 919ccd979bdSMark Fasheh { 920ccd979bdSMark Fasheh int status; 921ccd979bdSMark Fasheh unsigned int flags; 922ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 923ccd979bdSMark Fasheh struct buffer_head *bh = journal->j_bh; 924ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 925ccd979bdSMark Fasheh 926ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *)bh->b_data; 92710995aa2SJoel Becker 92810995aa2SJoel Becker /* The journal bh on the osb always comes from ocfs2_journal_init() 92910995aa2SJoel Becker * and was validated there inside ocfs2_inode_lock_full(). It's a 93010995aa2SJoel Becker * code bug if we mess it up. */ 93110995aa2SJoel Becker BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); 932ccd979bdSMark Fasheh 933ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 934ccd979bdSMark Fasheh if (dirty) 935ccd979bdSMark Fasheh flags |= OCFS2_JOURNAL_DIRTY_FL; 936ccd979bdSMark Fasheh else 937ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 938ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 939ccd979bdSMark Fasheh 940539d8264SSunil Mushran if (replayed) 941539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 942539d8264SSunil Mushran 94313723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 9448cb471e8SJoel Becker status = ocfs2_write_block(osb, bh, INODE_CACHE(journal->j_inode)); 945ccd979bdSMark Fasheh if (status < 0) 946ccd979bdSMark Fasheh mlog_errno(status); 947ccd979bdSMark Fasheh 948ccd979bdSMark Fasheh return status; 949ccd979bdSMark Fasheh } 950ccd979bdSMark Fasheh 951ccd979bdSMark Fasheh /* 952ccd979bdSMark Fasheh * If the journal has been kmalloc'd it needs to be freed after this 953ccd979bdSMark Fasheh * call. 954ccd979bdSMark Fasheh */ 955ccd979bdSMark Fasheh void ocfs2_journal_shutdown(struct ocfs2_super *osb) 956ccd979bdSMark Fasheh { 957ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 958ccd979bdSMark Fasheh int status = 0; 959ccd979bdSMark Fasheh struct inode *inode = NULL; 960ccd979bdSMark Fasheh int num_running_trans = 0; 961ccd979bdSMark Fasheh 962ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb); 963ccd979bdSMark Fasheh 964ccd979bdSMark Fasheh journal = osb->journal; 965ccd979bdSMark Fasheh if (!journal) 966ccd979bdSMark Fasheh goto done; 967ccd979bdSMark Fasheh 968ccd979bdSMark Fasheh inode = journal->j_inode; 969ccd979bdSMark Fasheh 970ccd979bdSMark Fasheh if (journal->j_state != OCFS2_JOURNAL_LOADED) 971ccd979bdSMark Fasheh goto done; 972ccd979bdSMark Fasheh 9732b4e30fbSJoel Becker /* need to inc inode use count - jbd2_journal_destroy will iput. */ 974ccd979bdSMark Fasheh if (!igrab(inode)) 975ccd979bdSMark Fasheh BUG(); 976ccd979bdSMark Fasheh 977ccd979bdSMark Fasheh num_running_trans = atomic_read(&(osb->journal->j_num_trans)); 978b4107950STao Ma trace_ocfs2_journal_shutdown(num_running_trans); 979ccd979bdSMark Fasheh 980ccd979bdSMark Fasheh /* Do a commit_cache here. It will flush our journal, *and* 981ccd979bdSMark Fasheh * release any locks that are still held. 982ccd979bdSMark Fasheh * set the SHUTDOWN flag and release the trans lock. 983ccd979bdSMark Fasheh * the commit thread will take the trans lock for us below. */ 984ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; 985ccd979bdSMark Fasheh 986ccd979bdSMark Fasheh /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not 987ccd979bdSMark Fasheh * drop the trans_lock (which we want to hold until we 988ccd979bdSMark Fasheh * completely destroy the journal. */ 989ccd979bdSMark Fasheh if (osb->commit_task) { 990ccd979bdSMark Fasheh /* Wait for the commit thread */ 991b4107950STao Ma trace_ocfs2_journal_shutdown_wait(osb->commit_task); 992ccd979bdSMark Fasheh kthread_stop(osb->commit_task); 993ccd979bdSMark Fasheh osb->commit_task = NULL; 994ccd979bdSMark Fasheh } 995ccd979bdSMark Fasheh 996ccd979bdSMark Fasheh BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); 997ccd979bdSMark Fasheh 998c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 9992b4e30fbSJoel Becker jbd2_journal_lock_updates(journal->j_journal); 10002b4e30fbSJoel Becker status = jbd2_journal_flush(journal->j_journal); 10012b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal->j_journal); 1002c271c5c2SSunil Mushran if (status < 0) 1003c271c5c2SSunil Mushran mlog_errno(status); 1004c271c5c2SSunil Mushran } 1005c271c5c2SSunil Mushran 1006d85400afSJunxiao Bi /* Shutdown the kernel journal system */ 1007d85400afSJunxiao Bi if (!jbd2_journal_destroy(journal->j_journal) && !status) { 1008c271c5c2SSunil Mushran /* 1009c271c5c2SSunil Mushran * Do not toggle if flush was unsuccessful otherwise 1010c271c5c2SSunil Mushran * will leave dirty metadata in a "clean" journal 1011c271c5c2SSunil Mushran */ 1012539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 0, 0); 1013ccd979bdSMark Fasheh if (status < 0) 1014ccd979bdSMark Fasheh mlog_errno(status); 1015c271c5c2SSunil Mushran } 1016ae0dff68SSunil Mushran journal->j_journal = NULL; 1017ccd979bdSMark Fasheh 1018ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 1019ccd979bdSMark Fasheh 1020ccd979bdSMark Fasheh /* unlock our journal */ 1021e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1022ccd979bdSMark Fasheh 1023ccd979bdSMark Fasheh brelse(journal->j_bh); 1024ccd979bdSMark Fasheh journal->j_bh = NULL; 1025ccd979bdSMark Fasheh 1026ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 1027ccd979bdSMark Fasheh 1028ccd979bdSMark Fasheh // up_write(&journal->j_trans_barrier); 1029ccd979bdSMark Fasheh done: 1030ccd979bdSMark Fasheh iput(inode); 1031ccd979bdSMark Fasheh } 1032ccd979bdSMark Fasheh 1033ccd979bdSMark Fasheh static void ocfs2_clear_journal_error(struct super_block *sb, 1034ccd979bdSMark Fasheh journal_t *journal, 1035ccd979bdSMark Fasheh int slot) 1036ccd979bdSMark Fasheh { 1037ccd979bdSMark Fasheh int olderr; 1038ccd979bdSMark Fasheh 10392b4e30fbSJoel Becker olderr = jbd2_journal_errno(journal); 1040ccd979bdSMark Fasheh if (olderr) { 1041ccd979bdSMark Fasheh mlog(ML_ERROR, "File system error %d recorded in " 1042ccd979bdSMark Fasheh "journal %u.\n", olderr, slot); 1043ccd979bdSMark Fasheh mlog(ML_ERROR, "File system on device %s needs checking.\n", 1044ccd979bdSMark Fasheh sb->s_id); 1045ccd979bdSMark Fasheh 10462b4e30fbSJoel Becker jbd2_journal_ack_err(journal); 10472b4e30fbSJoel Becker jbd2_journal_clear_err(journal); 1048ccd979bdSMark Fasheh } 1049ccd979bdSMark Fasheh } 1050ccd979bdSMark Fasheh 1051539d8264SSunil Mushran int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed) 1052ccd979bdSMark Fasheh { 1053ccd979bdSMark Fasheh int status = 0; 1054ccd979bdSMark Fasheh struct ocfs2_super *osb; 1055ccd979bdSMark Fasheh 1056b1f3550fSJulia Lawall BUG_ON(!journal); 1057ccd979bdSMark Fasheh 1058ccd979bdSMark Fasheh osb = journal->j_osb; 1059ccd979bdSMark Fasheh 10602b4e30fbSJoel Becker status = jbd2_journal_load(journal->j_journal); 1061ccd979bdSMark Fasheh if (status < 0) { 1062ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to load journal!\n"); 1063ccd979bdSMark Fasheh goto done; 1064ccd979bdSMark Fasheh } 1065ccd979bdSMark Fasheh 1066ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); 1067ccd979bdSMark Fasheh 1068539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(osb, 1, replayed); 1069ccd979bdSMark Fasheh if (status < 0) { 1070ccd979bdSMark Fasheh mlog_errno(status); 1071ccd979bdSMark Fasheh goto done; 1072ccd979bdSMark Fasheh } 1073ccd979bdSMark Fasheh 1074ccd979bdSMark Fasheh /* Launch the commit thread */ 1075c271c5c2SSunil Mushran if (!local) { 1076c271c5c2SSunil Mushran osb->commit_task = kthread_run(ocfs2_commit_thread, osb, 10775afc44e2SJoseph Qi "ocfs2cmt-%s", osb->uuid_str); 1078ccd979bdSMark Fasheh if (IS_ERR(osb->commit_task)) { 1079ccd979bdSMark Fasheh status = PTR_ERR(osb->commit_task); 1080ccd979bdSMark Fasheh osb->commit_task = NULL; 1081c271c5c2SSunil Mushran mlog(ML_ERROR, "unable to launch ocfs2commit thread, " 1082c271c5c2SSunil Mushran "error=%d", status); 1083ccd979bdSMark Fasheh goto done; 1084ccd979bdSMark Fasheh } 1085c271c5c2SSunil Mushran } else 1086c271c5c2SSunil Mushran osb->commit_task = NULL; 1087ccd979bdSMark Fasheh 1088ccd979bdSMark Fasheh done: 1089ccd979bdSMark Fasheh return status; 1090ccd979bdSMark Fasheh } 1091ccd979bdSMark Fasheh 1092ccd979bdSMark Fasheh 1093ccd979bdSMark Fasheh /* 'full' flag tells us whether we clear out all blocks or if we just 1094ccd979bdSMark Fasheh * mark the journal clean */ 1095ccd979bdSMark Fasheh int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) 1096ccd979bdSMark Fasheh { 1097ccd979bdSMark Fasheh int status; 1098ccd979bdSMark Fasheh 1099ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!journal); 1100ccd979bdSMark Fasheh 11012b4e30fbSJoel Becker status = jbd2_journal_wipe(journal->j_journal, full); 1102ccd979bdSMark Fasheh if (status < 0) { 1103ccd979bdSMark Fasheh mlog_errno(status); 1104ccd979bdSMark Fasheh goto bail; 1105ccd979bdSMark Fasheh } 1106ccd979bdSMark Fasheh 1107539d8264SSunil Mushran status = ocfs2_journal_toggle_dirty(journal->j_osb, 0, 0); 1108ccd979bdSMark Fasheh if (status < 0) 1109ccd979bdSMark Fasheh mlog_errno(status); 1110ccd979bdSMark Fasheh 1111ccd979bdSMark Fasheh bail: 1112ccd979bdSMark Fasheh return status; 1113ccd979bdSMark Fasheh } 1114ccd979bdSMark Fasheh 1115553abd04SJoel Becker static int ocfs2_recovery_completed(struct ocfs2_super *osb) 1116553abd04SJoel Becker { 1117553abd04SJoel Becker int empty; 1118553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 1119553abd04SJoel Becker 1120553abd04SJoel Becker spin_lock(&osb->osb_lock); 1121553abd04SJoel Becker empty = (rm->rm_used == 0); 1122553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1123553abd04SJoel Becker 1124553abd04SJoel Becker return empty; 1125553abd04SJoel Becker } 1126553abd04SJoel Becker 1127553abd04SJoel Becker void ocfs2_wait_for_recovery(struct ocfs2_super *osb) 1128553abd04SJoel Becker { 1129553abd04SJoel Becker wait_event(osb->recovery_event, ocfs2_recovery_completed(osb)); 1130553abd04SJoel Becker } 1131553abd04SJoel Becker 1132ccd979bdSMark Fasheh /* 1133ccd979bdSMark Fasheh * JBD Might read a cached version of another nodes journal file. We 1134ccd979bdSMark Fasheh * don't want this as this file changes often and we get no 1135ccd979bdSMark Fasheh * notification on those changes. The only way to be sure that we've 1136ccd979bdSMark Fasheh * got the most up to date version of those blocks then is to force 1137ccd979bdSMark Fasheh * read them off disk. Just searching through the buffer cache won't 1138ccd979bdSMark Fasheh * work as there may be pages backing this file which are still marked 1139ccd979bdSMark Fasheh * up to date. We know things can't change on this file underneath us 1140ccd979bdSMark Fasheh * as we have the lock by now :) 1141ccd979bdSMark Fasheh */ 1142ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode) 1143ccd979bdSMark Fasheh { 1144ccd979bdSMark Fasheh int status = 0; 11454f902c37SMark Fasheh int i; 11468110b073SMark Fasheh u64 v_blkno, p_blkno, p_blocks, num_blocks; 11470b492f68SJunxiao Bi struct buffer_head *bh = NULL; 11480b492f68SJunxiao Bi struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 1149ccd979bdSMark Fasheh 1150f17c20ddSJunxiao Bi num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode)); 1151ccd979bdSMark Fasheh v_blkno = 0; 11528110b073SMark Fasheh while (v_blkno < num_blocks) { 1153ccd979bdSMark Fasheh status = ocfs2_extent_map_get_blocks(inode, v_blkno, 115449cb8d2dSMark Fasheh &p_blkno, &p_blocks, NULL); 1155ccd979bdSMark Fasheh if (status < 0) { 1156ccd979bdSMark Fasheh mlog_errno(status); 1157ccd979bdSMark Fasheh goto bail; 1158ccd979bdSMark Fasheh } 1159ccd979bdSMark Fasheh 11600b492f68SJunxiao Bi for (i = 0; i < p_blocks; i++, p_blkno++) { 11610b492f68SJunxiao Bi bh = __find_get_block(osb->sb->s_bdev, p_blkno, 11620b492f68SJunxiao Bi osb->sb->s_blocksize); 11630b492f68SJunxiao Bi /* block not cached. */ 11640b492f68SJunxiao Bi if (!bh) 11650b492f68SJunxiao Bi continue; 1166ccd979bdSMark Fasheh 11670b492f68SJunxiao Bi brelse(bh); 11680b492f68SJunxiao Bi bh = NULL; 1169dd4a2c2bSMark Fasheh /* We are reading journal data which should not 11700b492f68SJunxiao Bi * be put in the uptodate cache. 11710b492f68SJunxiao Bi */ 11720b492f68SJunxiao Bi status = ocfs2_read_blocks_sync(osb, p_blkno, 1, &bh); 1173ccd979bdSMark Fasheh if (status < 0) { 1174ccd979bdSMark Fasheh mlog_errno(status); 1175ccd979bdSMark Fasheh goto bail; 1176ccd979bdSMark Fasheh } 1177ccd979bdSMark Fasheh 11780b492f68SJunxiao Bi brelse(bh); 11790b492f68SJunxiao Bi bh = NULL; 1180ccd979bdSMark Fasheh } 1181ccd979bdSMark Fasheh 1182ccd979bdSMark Fasheh v_blkno += p_blocks; 1183ccd979bdSMark Fasheh } 1184ccd979bdSMark Fasheh 1185ccd979bdSMark Fasheh bail: 1186ccd979bdSMark Fasheh return status; 1187ccd979bdSMark Fasheh } 1188ccd979bdSMark Fasheh 1189ccd979bdSMark Fasheh struct ocfs2_la_recovery_item { 1190ccd979bdSMark Fasheh struct list_head lri_list; 1191ccd979bdSMark Fasheh int lri_slot; 1192ccd979bdSMark Fasheh struct ocfs2_dinode *lri_la_dinode; 1193ccd979bdSMark Fasheh struct ocfs2_dinode *lri_tl_dinode; 11942205363dSJan Kara struct ocfs2_quota_recovery *lri_qrec; 1195ed460cffSJoseph Qi enum ocfs2_orphan_reco_type lri_orphan_reco_type; 1196ccd979bdSMark Fasheh }; 1197ccd979bdSMark Fasheh 1198ccd979bdSMark Fasheh /* Does the second half of the recovery process. By this point, the 1199ccd979bdSMark Fasheh * node is marked clean and can actually be considered recovered, 1200ccd979bdSMark Fasheh * hence it's no longer in the recovery map, but there's still some 1201ccd979bdSMark Fasheh * cleanup we can do which shouldn't happen within the recovery thread 1202ccd979bdSMark Fasheh * as locking in that context becomes very difficult if we are to take 1203ccd979bdSMark Fasheh * recovering nodes into account. 1204ccd979bdSMark Fasheh * 1205ccd979bdSMark Fasheh * NOTE: This function can and will sleep on recovery of other nodes 1206ccd979bdSMark Fasheh * during cluster locking, just like any other ocfs2 process. 1207ccd979bdSMark Fasheh */ 1208c4028958SDavid Howells void ocfs2_complete_recovery(struct work_struct *work) 1209ccd979bdSMark Fasheh { 1210b4107950STao Ma int ret = 0; 1211c4028958SDavid Howells struct ocfs2_journal *journal = 1212c4028958SDavid Howells container_of(work, struct ocfs2_journal, j_recovery_work); 1213c4028958SDavid Howells struct ocfs2_super *osb = journal->j_osb; 1214ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, *tl_dinode; 1215800deef3SChristoph Hellwig struct ocfs2_la_recovery_item *item, *n; 12162205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1217ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type; 1218ccd979bdSMark Fasheh LIST_HEAD(tmp_la_list); 1219ccd979bdSMark Fasheh 1220b4107950STao Ma trace_ocfs2_complete_recovery( 1221b4107950STao Ma (unsigned long long)OCFS2_I(journal->j_inode)->ip_blkno); 1222ccd979bdSMark Fasheh 1223ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1224ccd979bdSMark Fasheh list_splice_init(&journal->j_la_cleanups, &tmp_la_list); 1225ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1226ccd979bdSMark Fasheh 1227800deef3SChristoph Hellwig list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) { 1228ccd979bdSMark Fasheh list_del_init(&item->lri_list); 1229ccd979bdSMark Fasheh 123019ece546SJan Kara ocfs2_wait_on_quotas(osb); 123119ece546SJan Kara 1232ccd979bdSMark Fasheh la_dinode = item->lri_la_dinode; 1233b4107950STao Ma tl_dinode = item->lri_tl_dinode; 1234b4107950STao Ma qrec = item->lri_qrec; 1235ed460cffSJoseph Qi orphan_reco_type = item->lri_orphan_reco_type; 1236ccd979bdSMark Fasheh 1237b4107950STao Ma trace_ocfs2_complete_recovery_slot(item->lri_slot, 1238b4107950STao Ma la_dinode ? le64_to_cpu(la_dinode->i_blkno) : 0, 1239b4107950STao Ma tl_dinode ? le64_to_cpu(tl_dinode->i_blkno) : 0, 1240b4107950STao Ma qrec); 1241b4107950STao Ma 1242b4107950STao Ma if (la_dinode) { 1243ccd979bdSMark Fasheh ret = ocfs2_complete_local_alloc_recovery(osb, 1244ccd979bdSMark Fasheh la_dinode); 1245ccd979bdSMark Fasheh if (ret < 0) 1246ccd979bdSMark Fasheh mlog_errno(ret); 1247ccd979bdSMark Fasheh 1248ccd979bdSMark Fasheh kfree(la_dinode); 1249ccd979bdSMark Fasheh } 1250ccd979bdSMark Fasheh 1251ccd979bdSMark Fasheh if (tl_dinode) { 1252ccd979bdSMark Fasheh ret = ocfs2_complete_truncate_log_recovery(osb, 1253ccd979bdSMark Fasheh tl_dinode); 1254ccd979bdSMark Fasheh if (ret < 0) 1255ccd979bdSMark Fasheh mlog_errno(ret); 1256ccd979bdSMark Fasheh 1257ccd979bdSMark Fasheh kfree(tl_dinode); 1258ccd979bdSMark Fasheh } 1259ccd979bdSMark Fasheh 1260ed460cffSJoseph Qi ret = ocfs2_recover_orphans(osb, item->lri_slot, 1261ed460cffSJoseph Qi orphan_reco_type); 1262ccd979bdSMark Fasheh if (ret < 0) 1263ccd979bdSMark Fasheh mlog_errno(ret); 1264ccd979bdSMark Fasheh 12652205363dSJan Kara if (qrec) { 12662205363dSJan Kara ret = ocfs2_finish_quota_recovery(osb, qrec, 12672205363dSJan Kara item->lri_slot); 12682205363dSJan Kara if (ret < 0) 12692205363dSJan Kara mlog_errno(ret); 12702205363dSJan Kara /* Recovery info is already freed now */ 12712205363dSJan Kara } 12722205363dSJan Kara 1273ccd979bdSMark Fasheh kfree(item); 1274ccd979bdSMark Fasheh } 1275ccd979bdSMark Fasheh 1276b4107950STao Ma trace_ocfs2_complete_recovery_end(ret); 1277ccd979bdSMark Fasheh } 1278ccd979bdSMark Fasheh 1279ccd979bdSMark Fasheh /* NOTE: This function always eats your references to la_dinode and 1280ccd979bdSMark Fasheh * tl_dinode, either manually on error, or by passing them to 1281ccd979bdSMark Fasheh * ocfs2_complete_recovery */ 1282ccd979bdSMark Fasheh static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 1283ccd979bdSMark Fasheh int slot_num, 1284ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, 12852205363dSJan Kara struct ocfs2_dinode *tl_dinode, 1286ed460cffSJoseph Qi struct ocfs2_quota_recovery *qrec, 1287ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 1288ccd979bdSMark Fasheh { 1289ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 1290ccd979bdSMark Fasheh 1291afae00abSSunil Mushran item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS); 1292ccd979bdSMark Fasheh if (!item) { 1293ccd979bdSMark Fasheh /* Though we wish to avoid it, we are in fact safe in 1294ccd979bdSMark Fasheh * skipping local alloc cleanup as fsck.ocfs2 is more 1295ccd979bdSMark Fasheh * than capable of reclaiming unused space. */ 1296ccd979bdSMark Fasheh kfree(la_dinode); 1297ccd979bdSMark Fasheh kfree(tl_dinode); 1298ccd979bdSMark Fasheh 12992205363dSJan Kara if (qrec) 13002205363dSJan Kara ocfs2_free_quota_recovery(qrec); 13012205363dSJan Kara 1302ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 1303ccd979bdSMark Fasheh return; 1304ccd979bdSMark Fasheh } 1305ccd979bdSMark Fasheh 1306ccd979bdSMark Fasheh INIT_LIST_HEAD(&item->lri_list); 1307ccd979bdSMark Fasheh item->lri_la_dinode = la_dinode; 1308ccd979bdSMark Fasheh item->lri_slot = slot_num; 1309ccd979bdSMark Fasheh item->lri_tl_dinode = tl_dinode; 13102205363dSJan Kara item->lri_qrec = qrec; 1311ed460cffSJoseph Qi item->lri_orphan_reco_type = orphan_reco_type; 1312ccd979bdSMark Fasheh 1313ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1314ccd979bdSMark Fasheh list_add_tail(&item->lri_list, &journal->j_la_cleanups); 131535ddf78eSjiangyiwen queue_work(journal->j_osb->ocfs2_wq, &journal->j_recovery_work); 1316ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1317ccd979bdSMark Fasheh } 1318ccd979bdSMark Fasheh 1319ccd979bdSMark Fasheh /* Called by the mount code to queue recovery the last part of 13209140db04SSrinivas Eeda * recovery for it's own and offline slot(s). */ 1321ccd979bdSMark Fasheh void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) 1322ccd979bdSMark Fasheh { 1323ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 1324ccd979bdSMark Fasheh 132510b3dd76SSunil Mushran if (ocfs2_is_hard_readonly(osb)) 132610b3dd76SSunil Mushran return; 132710b3dd76SSunil Mushran 13289140db04SSrinivas Eeda /* No need to queue up our truncate_log as regular cleanup will catch 13299140db04SSrinivas Eeda * that */ 13309140db04SSrinivas Eeda ocfs2_queue_recovery_completion(journal, osb->slot_num, 1331ed460cffSJoseph Qi osb->local_alloc_copy, NULL, NULL, 1332ed460cffSJoseph Qi ORPHAN_NEED_TRUNCATE); 1333ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 1334ccd979bdSMark Fasheh 1335ccd979bdSMark Fasheh osb->local_alloc_copy = NULL; 13369140db04SSrinivas Eeda 13379140db04SSrinivas Eeda /* queue to recover orphan slots for all offline slots */ 13389140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 1339ed460cffSJoseph Qi ocfs2_queue_replay_slots(osb, ORPHAN_NEED_TRUNCATE); 13409140db04SSrinivas Eeda ocfs2_free_replay_slots(osb); 1341ccd979bdSMark Fasheh } 1342ccd979bdSMark Fasheh 13432205363dSJan Kara void ocfs2_complete_quota_recovery(struct ocfs2_super *osb) 13442205363dSJan Kara { 13452205363dSJan Kara if (osb->quota_rec) { 13462205363dSJan Kara ocfs2_queue_recovery_completion(osb->journal, 13472205363dSJan Kara osb->slot_num, 13482205363dSJan Kara NULL, 13492205363dSJan Kara NULL, 1350ed460cffSJoseph Qi osb->quota_rec, 1351ed460cffSJoseph Qi ORPHAN_NEED_TRUNCATE); 13522205363dSJan Kara osb->quota_rec = NULL; 13532205363dSJan Kara } 13542205363dSJan Kara } 13552205363dSJan Kara 1356ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg) 1357ccd979bdSMark Fasheh { 13582205363dSJan Kara int status, node_num, slot_num; 1359ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 1360553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 13612205363dSJan Kara int *rm_quota = NULL; 13622205363dSJan Kara int rm_quota_used = 0, i; 13632205363dSJan Kara struct ocfs2_quota_recovery *qrec; 1364ccd979bdSMark Fasheh 136521158ca8SGuozhonghua /* Whether the quota supported. */ 136621158ca8SGuozhonghua int quota_enabled = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, 136721158ca8SGuozhonghua OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 136821158ca8SGuozhonghua || OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, 136921158ca8SGuozhonghua OCFS2_FEATURE_RO_COMPAT_GRPQUOTA); 137021158ca8SGuozhonghua 1371ccd979bdSMark Fasheh status = ocfs2_wait_on_mount(osb); 1372ccd979bdSMark Fasheh if (status < 0) { 1373ccd979bdSMark Fasheh goto bail; 1374ccd979bdSMark Fasheh } 1375ccd979bdSMark Fasheh 137621158ca8SGuozhonghua if (quota_enabled) { 13776396bb22SKees Cook rm_quota = kcalloc(osb->max_slots, sizeof(int), GFP_NOFS); 13782205363dSJan Kara if (!rm_quota) { 13792205363dSJan Kara status = -ENOMEM; 13802205363dSJan Kara goto bail; 13812205363dSJan Kara } 138221158ca8SGuozhonghua } 1383ccd979bdSMark Fasheh restart: 1384ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1385ccd979bdSMark Fasheh if (status < 0) { 1386ccd979bdSMark Fasheh mlog_errno(status); 1387ccd979bdSMark Fasheh goto bail; 1388ccd979bdSMark Fasheh } 1389ccd979bdSMark Fasheh 13909140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 13919140db04SSrinivas Eeda if (status < 0) 13929140db04SSrinivas Eeda mlog_errno(status); 13939140db04SSrinivas Eeda 13949140db04SSrinivas Eeda /* queue recovery for our own slot */ 13959140db04SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, 1396ed460cffSJoseph Qi NULL, NULL, ORPHAN_NO_NEED_TRUNCATE); 13979140db04SSrinivas Eeda 1398553abd04SJoel Becker spin_lock(&osb->osb_lock); 1399553abd04SJoel Becker while (rm->rm_used) { 1400553abd04SJoel Becker /* It's always safe to remove entry zero, as we won't 1401553abd04SJoel Becker * clear it until ocfs2_recover_node() has succeeded. */ 1402553abd04SJoel Becker node_num = rm->rm_entries[0]; 1403553abd04SJoel Becker spin_unlock(&osb->osb_lock); 14042205363dSJan Kara slot_num = ocfs2_node_num_to_slot(osb, node_num); 1405b4107950STao Ma trace_ocfs2_recovery_thread_node(node_num, slot_num); 14062205363dSJan Kara if (slot_num == -ENOENT) { 14072205363dSJan Kara status = 0; 14082205363dSJan Kara goto skip_recovery; 14092205363dSJan Kara } 1410ccd979bdSMark Fasheh 14112205363dSJan Kara /* It is a bit subtle with quota recovery. We cannot do it 14122205363dSJan Kara * immediately because we have to obtain cluster locks from 14132205363dSJan Kara * quota files and we also don't want to just skip it because 14142205363dSJan Kara * then quota usage would be out of sync until some node takes 14152205363dSJan Kara * the slot. So we remember which nodes need quota recovery 14162205363dSJan Kara * and when everything else is done, we recover quotas. */ 141721158ca8SGuozhonghua if (quota_enabled) { 141821158ca8SGuozhonghua for (i = 0; i < rm_quota_used 141921158ca8SGuozhonghua && rm_quota[i] != slot_num; i++) 142021158ca8SGuozhonghua ; 142121158ca8SGuozhonghua 14222205363dSJan Kara if (i == rm_quota_used) 14232205363dSJan Kara rm_quota[rm_quota_used++] = slot_num; 142421158ca8SGuozhonghua } 14252205363dSJan Kara 14262205363dSJan Kara status = ocfs2_recover_node(osb, node_num, slot_num); 14272205363dSJan Kara skip_recovery: 1428553abd04SJoel Becker if (!status) { 1429553abd04SJoel Becker ocfs2_recovery_map_clear(osb, node_num); 1430553abd04SJoel Becker } else { 1431ccd979bdSMark Fasheh mlog(ML_ERROR, 1432ccd979bdSMark Fasheh "Error %d recovering node %d on device (%u,%u)!\n", 1433ccd979bdSMark Fasheh status, node_num, 1434ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1435ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume requires unmount.\n"); 1436ccd979bdSMark Fasheh } 1437ccd979bdSMark Fasheh 1438553abd04SJoel Becker spin_lock(&osb->osb_lock); 1439ccd979bdSMark Fasheh } 1440553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1441b4107950STao Ma trace_ocfs2_recovery_thread_end(status); 1442553abd04SJoel Becker 1443539d8264SSunil Mushran /* Refresh all journal recovery generations from disk */ 1444539d8264SSunil Mushran status = ocfs2_check_journals_nolocks(osb); 1445539d8264SSunil Mushran status = (status == -EROFS) ? 0 : status; 1446539d8264SSunil Mushran if (status < 0) 1447539d8264SSunil Mushran mlog_errno(status); 1448539d8264SSunil Mushran 14492205363dSJan Kara /* Now it is right time to recover quotas... We have to do this under 14502205363dSJan Kara * superblock lock so that no one can start using the slot (and crash) 14512205363dSJan Kara * before we recover it */ 145221158ca8SGuozhonghua if (quota_enabled) { 14532205363dSJan Kara for (i = 0; i < rm_quota_used; i++) { 14542205363dSJan Kara qrec = ocfs2_begin_quota_recovery(osb, rm_quota[i]); 14552205363dSJan Kara if (IS_ERR(qrec)) { 14562205363dSJan Kara status = PTR_ERR(qrec); 14572205363dSJan Kara mlog_errno(status); 14582205363dSJan Kara continue; 14592205363dSJan Kara } 146021158ca8SGuozhonghua ocfs2_queue_recovery_completion(osb->journal, 146121158ca8SGuozhonghua rm_quota[i], 1462ed460cffSJoseph Qi NULL, NULL, qrec, 1463ed460cffSJoseph Qi ORPHAN_NEED_TRUNCATE); 14642205363dSJan Kara } 146521158ca8SGuozhonghua } 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 148621158ca8SGuozhonghua if (quota_enabled) 14872205363dSJan Kara kfree(rm_quota); 14882205363dSJan Kara 1489ccd979bdSMark Fasheh /* no one is callint kthread_stop() for us so the kthread() api 1490ccd979bdSMark Fasheh * requires that we call do_exit(). And it isn't exported, but 1491ccd979bdSMark Fasheh * complete_and_exit() seems to be a minimal wrapper around it. */ 1492ccd979bdSMark Fasheh complete_and_exit(NULL, status); 1493ccd979bdSMark Fasheh } 1494ccd979bdSMark Fasheh 1495ccd979bdSMark Fasheh void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) 1496ccd979bdSMark Fasheh { 1497c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1498b4107950STao Ma 1499b4107950STao Ma trace_ocfs2_recovery_thread(node_num, osb->node_num, 1500b4107950STao Ma osb->disable_recovery, osb->recovery_thread_task, 1501b4107950STao Ma osb->disable_recovery ? 1502b4107950STao Ma -1 : ocfs2_recovery_map_set(osb, node_num)); 1503b4107950STao Ma 1504ccd979bdSMark Fasheh if (osb->disable_recovery) 1505ccd979bdSMark Fasheh goto out; 1506ccd979bdSMark Fasheh 1507ccd979bdSMark Fasheh if (osb->recovery_thread_task) 1508ccd979bdSMark Fasheh goto out; 1509ccd979bdSMark Fasheh 1510ccd979bdSMark Fasheh osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, 15115afc44e2SJoseph Qi "ocfs2rec-%s", osb->uuid_str); 1512ccd979bdSMark Fasheh if (IS_ERR(osb->recovery_thread_task)) { 1513ccd979bdSMark Fasheh mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); 1514ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1515ccd979bdSMark Fasheh } 1516ccd979bdSMark Fasheh 1517ccd979bdSMark Fasheh out: 1518c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1519ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1520ccd979bdSMark Fasheh } 1521ccd979bdSMark Fasheh 1522539d8264SSunil Mushran static int ocfs2_read_journal_inode(struct ocfs2_super *osb, 1523539d8264SSunil Mushran int slot_num, 1524539d8264SSunil Mushran struct buffer_head **bh, 1525539d8264SSunil Mushran struct inode **ret_inode) 1526539d8264SSunil Mushran { 1527539d8264SSunil Mushran int status = -EACCES; 1528539d8264SSunil Mushran struct inode *inode = NULL; 1529539d8264SSunil Mushran 1530539d8264SSunil Mushran BUG_ON(slot_num >= osb->max_slots); 1531539d8264SSunil Mushran 1532539d8264SSunil Mushran inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1533539d8264SSunil Mushran slot_num); 1534539d8264SSunil Mushran if (!inode || is_bad_inode(inode)) { 1535539d8264SSunil Mushran mlog_errno(status); 1536539d8264SSunil Mushran goto bail; 1537539d8264SSunil Mushran } 1538539d8264SSunil Mushran SET_INODE_JOURNAL(inode); 1539539d8264SSunil Mushran 1540b657c95cSJoel Becker status = ocfs2_read_inode_block_full(inode, bh, OCFS2_BH_IGNORE_CACHE); 1541539d8264SSunil Mushran if (status < 0) { 1542539d8264SSunil Mushran mlog_errno(status); 1543539d8264SSunil Mushran goto bail; 1544539d8264SSunil Mushran } 1545539d8264SSunil Mushran 1546539d8264SSunil Mushran status = 0; 1547539d8264SSunil Mushran 1548539d8264SSunil Mushran bail: 1549539d8264SSunil Mushran if (inode) { 1550539d8264SSunil Mushran if (status || !ret_inode) 1551539d8264SSunil Mushran iput(inode); 1552539d8264SSunil Mushran else 1553539d8264SSunil Mushran *ret_inode = inode; 1554539d8264SSunil Mushran } 1555539d8264SSunil Mushran return status; 1556539d8264SSunil Mushran } 1557539d8264SSunil Mushran 1558ccd979bdSMark Fasheh /* Does the actual journal replay and marks the journal inode as 1559ccd979bdSMark Fasheh * clean. Will only replay if the journal inode is marked dirty. */ 1560ccd979bdSMark Fasheh static int ocfs2_replay_journal(struct ocfs2_super *osb, 1561ccd979bdSMark Fasheh int node_num, 1562ccd979bdSMark Fasheh int slot_num) 1563ccd979bdSMark Fasheh { 1564ccd979bdSMark Fasheh int status; 1565ccd979bdSMark Fasheh int got_lock = 0; 1566ccd979bdSMark Fasheh unsigned int flags; 1567ccd979bdSMark Fasheh struct inode *inode = NULL; 1568ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 1569ccd979bdSMark Fasheh journal_t *journal = NULL; 1570ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1571539d8264SSunil Mushran u32 slot_reco_gen; 1572ccd979bdSMark Fasheh 1573539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, slot_num, &bh, &inode); 1574539d8264SSunil Mushran if (status) { 1575ccd979bdSMark Fasheh mlog_errno(status); 1576ccd979bdSMark Fasheh goto done; 1577ccd979bdSMark Fasheh } 1578539d8264SSunil Mushran 1579539d8264SSunil Mushran fe = (struct ocfs2_dinode *)bh->b_data; 1580539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1581539d8264SSunil Mushran brelse(bh); 1582539d8264SSunil Mushran bh = NULL; 1583539d8264SSunil Mushran 1584539d8264SSunil Mushran /* 1585539d8264SSunil Mushran * As the fs recovery is asynchronous, there is a small chance that 1586539d8264SSunil Mushran * another node mounted (and recovered) the slot before the recovery 1587539d8264SSunil Mushran * thread could get the lock. To handle that, we dirty read the journal 1588539d8264SSunil Mushran * inode for that slot to get the recovery generation. If it is 1589539d8264SSunil Mushran * different than what we expected, the slot has been recovered. 1590539d8264SSunil Mushran * If not, it needs recovery. 1591539d8264SSunil Mushran */ 1592539d8264SSunil Mushran if (osb->slot_recovery_generations[slot_num] != slot_reco_gen) { 1593b4107950STao Ma trace_ocfs2_replay_journal_recovered(slot_num, 1594539d8264SSunil Mushran osb->slot_recovery_generations[slot_num], slot_reco_gen); 1595539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1596539d8264SSunil Mushran status = -EBUSY; 1597ccd979bdSMark Fasheh goto done; 1598ccd979bdSMark Fasheh } 1599539d8264SSunil Mushran 1600539d8264SSunil Mushran /* Continue with recovery as the journal has not yet been recovered */ 1601ccd979bdSMark Fasheh 1602e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 1603ccd979bdSMark Fasheh if (status < 0) { 1604b4107950STao Ma trace_ocfs2_replay_journal_lock_err(status); 1605ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 1606ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not lock journal!\n"); 1607ccd979bdSMark Fasheh goto done; 1608ccd979bdSMark Fasheh } 1609ccd979bdSMark Fasheh got_lock = 1; 1610ccd979bdSMark Fasheh 1611ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *) bh->b_data; 1612ccd979bdSMark Fasheh 1613ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1614539d8264SSunil Mushran slot_reco_gen = ocfs2_get_recovery_generation(fe); 1615ccd979bdSMark Fasheh 1616ccd979bdSMark Fasheh if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { 1617b4107950STao Ma trace_ocfs2_replay_journal_skip(node_num); 1618539d8264SSunil Mushran /* Refresh recovery generation for the slot */ 1619539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = slot_reco_gen; 1620ccd979bdSMark Fasheh goto done; 1621ccd979bdSMark Fasheh } 1622ccd979bdSMark Fasheh 16239140db04SSrinivas Eeda /* we need to run complete recovery for offline orphan slots */ 16249140db04SSrinivas Eeda ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); 16259140db04SSrinivas Eeda 1626619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Begin replay journal (node %d, slot %d) on "\ 1627619c200dSSunil Mushran "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), 1628619c200dSSunil Mushran MINOR(osb->sb->s_dev)); 1629ccd979bdSMark Fasheh 1630ccd979bdSMark Fasheh OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); 1631ccd979bdSMark Fasheh 1632ccd979bdSMark Fasheh status = ocfs2_force_read_journal(inode); 1633ccd979bdSMark Fasheh if (status < 0) { 1634ccd979bdSMark Fasheh mlog_errno(status); 1635ccd979bdSMark Fasheh goto done; 1636ccd979bdSMark Fasheh } 1637ccd979bdSMark Fasheh 16382b4e30fbSJoel Becker journal = jbd2_journal_init_inode(inode); 1639ccd979bdSMark Fasheh if (journal == NULL) { 1640ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 1641ccd979bdSMark Fasheh status = -EIO; 1642ccd979bdSMark Fasheh goto done; 1643ccd979bdSMark Fasheh } 1644ccd979bdSMark Fasheh 16452b4e30fbSJoel Becker status = jbd2_journal_load(journal); 1646ccd979bdSMark Fasheh if (status < 0) { 1647ccd979bdSMark Fasheh mlog_errno(status); 1648ccd979bdSMark Fasheh if (!igrab(inode)) 1649ccd979bdSMark Fasheh BUG(); 16502b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1651ccd979bdSMark Fasheh goto done; 1652ccd979bdSMark Fasheh } 1653ccd979bdSMark Fasheh 1654ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal, slot_num); 1655ccd979bdSMark Fasheh 1656ccd979bdSMark Fasheh /* wipe the journal */ 16572b4e30fbSJoel Becker jbd2_journal_lock_updates(journal); 16582b4e30fbSJoel Becker status = jbd2_journal_flush(journal); 16592b4e30fbSJoel Becker jbd2_journal_unlock_updates(journal); 1660ccd979bdSMark Fasheh if (status < 0) 1661ccd979bdSMark Fasheh mlog_errno(status); 1662ccd979bdSMark Fasheh 1663ccd979bdSMark Fasheh /* This will mark the node clean */ 1664ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1665ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 1666ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 1667ccd979bdSMark Fasheh 1668539d8264SSunil Mushran /* Increment recovery generation to indicate successful recovery */ 1669539d8264SSunil Mushran ocfs2_bump_recovery_generation(fe); 1670539d8264SSunil Mushran osb->slot_recovery_generations[slot_num] = 1671539d8264SSunil Mushran ocfs2_get_recovery_generation(fe); 1672539d8264SSunil Mushran 167313723d00SJoel Becker ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check); 16748cb471e8SJoel Becker status = ocfs2_write_block(osb, bh, INODE_CACHE(inode)); 1675ccd979bdSMark Fasheh if (status < 0) 1676ccd979bdSMark Fasheh mlog_errno(status); 1677ccd979bdSMark Fasheh 1678ccd979bdSMark Fasheh if (!igrab(inode)) 1679ccd979bdSMark Fasheh BUG(); 1680ccd979bdSMark Fasheh 16812b4e30fbSJoel Becker jbd2_journal_destroy(journal); 1682ccd979bdSMark Fasheh 1683619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: End replay journal (node %d, slot %d) on "\ 1684619c200dSSunil Mushran "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), 1685619c200dSSunil Mushran MINOR(osb->sb->s_dev)); 1686ccd979bdSMark Fasheh done: 1687ccd979bdSMark Fasheh /* drop the lock on this nodes journal */ 1688ccd979bdSMark Fasheh if (got_lock) 1689e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1690ccd979bdSMark Fasheh 1691ccd979bdSMark Fasheh iput(inode); 1692ccd979bdSMark Fasheh brelse(bh); 1693ccd979bdSMark Fasheh 1694ccd979bdSMark Fasheh return status; 1695ccd979bdSMark Fasheh } 1696ccd979bdSMark Fasheh 1697ccd979bdSMark Fasheh /* 1698ccd979bdSMark Fasheh * Do the most important parts of node recovery: 1699ccd979bdSMark Fasheh * - Replay it's journal 1700ccd979bdSMark Fasheh * - Stamp a clean local allocator file 1701ccd979bdSMark Fasheh * - Stamp a clean truncate log 1702ccd979bdSMark Fasheh * - Mark the node clean 1703ccd979bdSMark Fasheh * 1704ccd979bdSMark Fasheh * If this function completes without error, a node in OCFS2 can be 1705ccd979bdSMark Fasheh * said to have been safely recovered. As a result, failure during the 1706ccd979bdSMark Fasheh * second part of a nodes recovery process (local alloc recovery) is 1707ccd979bdSMark Fasheh * far less concerning. 1708ccd979bdSMark Fasheh */ 1709ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 17102205363dSJan Kara int node_num, int slot_num) 1711ccd979bdSMark Fasheh { 1712ccd979bdSMark Fasheh int status = 0; 1713ccd979bdSMark Fasheh struct ocfs2_dinode *la_copy = NULL; 1714ccd979bdSMark Fasheh struct ocfs2_dinode *tl_copy = NULL; 1715ccd979bdSMark Fasheh 1716b4107950STao Ma trace_ocfs2_recover_node(node_num, slot_num, osb->node_num); 1717ccd979bdSMark Fasheh 1718ccd979bdSMark Fasheh /* Should not ever be called to recover ourselves -- in that 1719ccd979bdSMark Fasheh * case we should've called ocfs2_journal_load instead. */ 1720ebdec83bSEric Sesterhenn / snakebyte BUG_ON(osb->node_num == node_num); 1721ccd979bdSMark Fasheh 1722ccd979bdSMark Fasheh status = ocfs2_replay_journal(osb, node_num, slot_num); 1723ccd979bdSMark Fasheh if (status < 0) { 1724539d8264SSunil Mushran if (status == -EBUSY) { 1725b4107950STao Ma trace_ocfs2_recover_node_skip(slot_num, node_num); 1726539d8264SSunil Mushran status = 0; 1727539d8264SSunil Mushran goto done; 1728539d8264SSunil Mushran } 1729ccd979bdSMark Fasheh mlog_errno(status); 1730ccd979bdSMark Fasheh goto done; 1731ccd979bdSMark Fasheh } 1732ccd979bdSMark Fasheh 1733ccd979bdSMark Fasheh /* Stamp a clean local alloc file AFTER recovering the journal... */ 1734ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); 1735ccd979bdSMark Fasheh if (status < 0) { 1736ccd979bdSMark Fasheh mlog_errno(status); 1737ccd979bdSMark Fasheh goto done; 1738ccd979bdSMark Fasheh } 1739ccd979bdSMark Fasheh 1740ccd979bdSMark Fasheh /* An error from begin_truncate_log_recovery is not 1741ccd979bdSMark Fasheh * serious enough to warrant halting the rest of 1742ccd979bdSMark Fasheh * recovery. */ 1743ccd979bdSMark Fasheh status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); 1744ccd979bdSMark Fasheh if (status < 0) 1745ccd979bdSMark Fasheh mlog_errno(status); 1746ccd979bdSMark Fasheh 1747ccd979bdSMark Fasheh /* Likewise, this would be a strange but ultimately not so 1748ccd979bdSMark Fasheh * harmful place to get an error... */ 17498e8a4603SMark Fasheh status = ocfs2_clear_slot(osb, slot_num); 1750ccd979bdSMark Fasheh if (status < 0) 1751ccd979bdSMark Fasheh mlog_errno(status); 1752ccd979bdSMark Fasheh 1753ccd979bdSMark Fasheh /* This will kfree the memory pointed to by la_copy and tl_copy */ 1754ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, 1755ed460cffSJoseph Qi tl_copy, NULL, ORPHAN_NEED_TRUNCATE); 1756ccd979bdSMark Fasheh 1757ccd979bdSMark Fasheh status = 0; 1758ccd979bdSMark Fasheh done: 1759ccd979bdSMark Fasheh 1760ccd979bdSMark Fasheh return status; 1761ccd979bdSMark Fasheh } 1762ccd979bdSMark Fasheh 1763ccd979bdSMark Fasheh /* Test node liveness by trylocking his journal. If we get the lock, 1764ccd979bdSMark Fasheh * we drop it here. Return 0 if we got the lock, -EAGAIN if node is 1765ccd979bdSMark Fasheh * still alive (we couldn't get the lock) and < 0 on error. */ 1766ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 1767ccd979bdSMark Fasheh int slot_num) 1768ccd979bdSMark Fasheh { 1769ccd979bdSMark Fasheh int status, flags; 1770ccd979bdSMark Fasheh struct inode *inode = NULL; 1771ccd979bdSMark Fasheh 1772ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1773ccd979bdSMark Fasheh slot_num); 1774ccd979bdSMark Fasheh if (inode == NULL) { 1775ccd979bdSMark Fasheh mlog(ML_ERROR, "access error\n"); 1776ccd979bdSMark Fasheh status = -EACCES; 1777ccd979bdSMark Fasheh goto bail; 1778ccd979bdSMark Fasheh } 1779ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1780ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 1781ccd979bdSMark Fasheh iput(inode); 1782ccd979bdSMark Fasheh inode = NULL; 1783ccd979bdSMark Fasheh status = -EACCES; 1784ccd979bdSMark Fasheh goto bail; 1785ccd979bdSMark Fasheh } 1786ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1787ccd979bdSMark Fasheh 1788ccd979bdSMark Fasheh flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; 1789e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, NULL, 1, flags); 1790ccd979bdSMark Fasheh if (status < 0) { 1791ccd979bdSMark Fasheh if (status != -EAGAIN) 1792ccd979bdSMark Fasheh mlog_errno(status); 1793ccd979bdSMark Fasheh goto bail; 1794ccd979bdSMark Fasheh } 1795ccd979bdSMark Fasheh 1796e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1797ccd979bdSMark Fasheh bail: 1798ccd979bdSMark Fasheh iput(inode); 1799ccd979bdSMark Fasheh 1800ccd979bdSMark Fasheh return status; 1801ccd979bdSMark Fasheh } 1802ccd979bdSMark Fasheh 1803ccd979bdSMark Fasheh /* Call this underneath ocfs2_super_lock. It also assumes that the 1804ccd979bdSMark Fasheh * slot info struct has been updated from disk. */ 1805ccd979bdSMark Fasheh int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) 1806ccd979bdSMark Fasheh { 1807d85b20e4SJoel Becker unsigned int node_num; 1808d85b20e4SJoel Becker int status, i; 1809a1af7d15SMark Fasheh u32 gen; 1810539d8264SSunil Mushran struct buffer_head *bh = NULL; 1811539d8264SSunil Mushran struct ocfs2_dinode *di; 1812ccd979bdSMark Fasheh 1813ccd979bdSMark Fasheh /* This is called with the super block cluster lock, so we 1814ccd979bdSMark Fasheh * know that the slot map can't change underneath us. */ 1815ccd979bdSMark Fasheh 1816d85b20e4SJoel Becker for (i = 0; i < osb->max_slots; i++) { 1817539d8264SSunil Mushran /* Read journal inode to get the recovery generation */ 1818539d8264SSunil Mushran status = ocfs2_read_journal_inode(osb, i, &bh, NULL); 1819539d8264SSunil Mushran if (status) { 1820539d8264SSunil Mushran mlog_errno(status); 1821539d8264SSunil Mushran goto bail; 1822539d8264SSunil Mushran } 1823539d8264SSunil Mushran di = (struct ocfs2_dinode *)bh->b_data; 1824a1af7d15SMark Fasheh gen = ocfs2_get_recovery_generation(di); 1825539d8264SSunil Mushran brelse(bh); 1826539d8264SSunil Mushran bh = NULL; 1827539d8264SSunil Mushran 1828a1af7d15SMark Fasheh spin_lock(&osb->osb_lock); 1829a1af7d15SMark Fasheh osb->slot_recovery_generations[i] = gen; 1830a1af7d15SMark Fasheh 1831b4107950STao Ma trace_ocfs2_mark_dead_nodes(i, 1832539d8264SSunil Mushran osb->slot_recovery_generations[i]); 1833539d8264SSunil Mushran 1834a1af7d15SMark Fasheh if (i == osb->slot_num) { 1835a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1836ccd979bdSMark Fasheh continue; 1837a1af7d15SMark Fasheh } 1838d85b20e4SJoel Becker 1839d85b20e4SJoel Becker status = ocfs2_slot_to_node_num_locked(osb, i, &node_num); 1840a1af7d15SMark Fasheh if (status == -ENOENT) { 1841a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1842ccd979bdSMark Fasheh continue; 1843a1af7d15SMark Fasheh } 1844ccd979bdSMark Fasheh 1845a1af7d15SMark Fasheh if (__ocfs2_recovery_map_test(osb, node_num)) { 1846a1af7d15SMark Fasheh spin_unlock(&osb->osb_lock); 1847ccd979bdSMark Fasheh continue; 1848a1af7d15SMark Fasheh } 1849d85b20e4SJoel Becker spin_unlock(&osb->osb_lock); 1850ccd979bdSMark Fasheh 1851ccd979bdSMark Fasheh /* Ok, we have a slot occupied by another node which 1852ccd979bdSMark Fasheh * is not in the recovery map. We trylock his journal 1853ccd979bdSMark Fasheh * file here to test if he's alive. */ 1854ccd979bdSMark Fasheh status = ocfs2_trylock_journal(osb, i); 1855ccd979bdSMark Fasheh if (!status) { 1856ccd979bdSMark Fasheh /* Since we're called from mount, we know that 1857ccd979bdSMark Fasheh * the recovery thread can't race us on 1858ccd979bdSMark Fasheh * setting / checking the recovery bits. */ 1859ccd979bdSMark Fasheh ocfs2_recovery_thread(osb, node_num); 1860ccd979bdSMark Fasheh } else if ((status < 0) && (status != -EAGAIN)) { 1861ccd979bdSMark Fasheh mlog_errno(status); 1862ccd979bdSMark Fasheh goto bail; 1863ccd979bdSMark Fasheh } 1864ccd979bdSMark Fasheh } 1865ccd979bdSMark Fasheh 1866ccd979bdSMark Fasheh status = 0; 1867ccd979bdSMark Fasheh bail: 1868ccd979bdSMark Fasheh return status; 1869ccd979bdSMark Fasheh } 1870ccd979bdSMark Fasheh 187183273932SSrinivas Eeda /* 187283273932SSrinivas Eeda * Scan timer should get fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT. Add some 187383273932SSrinivas Eeda * randomness to the timeout to minimize multple nodes firing the timer at the 187483273932SSrinivas Eeda * same time. 187583273932SSrinivas Eeda */ 187683273932SSrinivas Eeda static inline unsigned long ocfs2_orphan_scan_timeout(void) 187783273932SSrinivas Eeda { 187883273932SSrinivas Eeda unsigned long time; 187983273932SSrinivas Eeda 188083273932SSrinivas Eeda get_random_bytes(&time, sizeof(time)); 188183273932SSrinivas Eeda time = ORPHAN_SCAN_SCHEDULE_TIMEOUT + (time % 5000); 188283273932SSrinivas Eeda return msecs_to_jiffies(time); 188383273932SSrinivas Eeda } 188483273932SSrinivas Eeda 188583273932SSrinivas Eeda /* 188683273932SSrinivas Eeda * ocfs2_queue_orphan_scan calls ocfs2_queue_recovery_completion for 188783273932SSrinivas Eeda * every slot, queuing a recovery of the slot on the ocfs2_wq thread. This 188883273932SSrinivas Eeda * is done to catch any orphans that are left over in orphan directories. 188983273932SSrinivas Eeda * 1890a035bff6SSunil Mushran * It scans all slots, even ones that are in use. It does so to handle the 1891a035bff6SSunil Mushran * case described below: 1892a035bff6SSunil Mushran * 1893a035bff6SSunil Mushran * Node 1 has an inode it was using. The dentry went away due to memory 1894a035bff6SSunil Mushran * pressure. Node 1 closes the inode, but it's on the free list. The node 1895a035bff6SSunil Mushran * has the open lock. 1896a035bff6SSunil Mushran * Node 2 unlinks the inode. It grabs the dentry lock to notify others, 1897a035bff6SSunil Mushran * but node 1 has no dentry and doesn't get the message. It trylocks the 1898a035bff6SSunil Mushran * open lock, sees that another node has a PR, and does nothing. 1899a035bff6SSunil Mushran * Later node 2 runs its orphan dir. It igets the inode, trylocks the 1900a035bff6SSunil Mushran * open lock, sees the PR still, and does nothing. 1901a035bff6SSunil Mushran * Basically, we have to trigger an orphan iput on node 1. The only way 1902a035bff6SSunil Mushran * for this to happen is if node 1 runs node 2's orphan dir. 1903a035bff6SSunil Mushran * 190483273932SSrinivas Eeda * ocfs2_queue_orphan_scan gets called every ORPHAN_SCAN_SCHEDULE_TIMEOUT 190583273932SSrinivas Eeda * seconds. It gets an EX lock on os_lockres and checks sequence number 190683273932SSrinivas Eeda * stored in LVB. If the sequence number has changed, it means some other 190783273932SSrinivas Eeda * node has done the scan. This node skips the scan and tracks the 190883273932SSrinivas Eeda * sequence number. If the sequence number didn't change, it means a scan 190983273932SSrinivas Eeda * hasn't happened. The node queues a scan and increments the 191083273932SSrinivas Eeda * sequence number in the LVB. 191183273932SSrinivas Eeda */ 1912b519ea6dSJoseph Qi static void ocfs2_queue_orphan_scan(struct ocfs2_super *osb) 191383273932SSrinivas Eeda { 191483273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 191583273932SSrinivas Eeda int status, i; 191683273932SSrinivas Eeda u32 seqno = 0; 191783273932SSrinivas Eeda 191883273932SSrinivas Eeda os = &osb->osb_orphan_scan; 191983273932SSrinivas Eeda 1920692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 1921692684e1SSunil Mushran goto out; 1922692684e1SSunil Mushran 1923b4107950STao Ma trace_ocfs2_queue_orphan_scan_begin(os->os_count, os->os_seqno, 1924b4107950STao Ma atomic_read(&os->os_state)); 1925b4107950STao Ma 1926df152c24SSunil Mushran status = ocfs2_orphan_scan_lock(osb, &seqno); 192783273932SSrinivas Eeda if (status < 0) { 192883273932SSrinivas Eeda if (status != -EAGAIN) 192983273932SSrinivas Eeda mlog_errno(status); 193083273932SSrinivas Eeda goto out; 193183273932SSrinivas Eeda } 193283273932SSrinivas Eeda 1933692684e1SSunil Mushran /* Do no queue the tasks if the volume is being umounted */ 1934692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 1935692684e1SSunil Mushran goto unlock; 1936692684e1SSunil Mushran 193783273932SSrinivas Eeda if (os->os_seqno != seqno) { 193883273932SSrinivas Eeda os->os_seqno = seqno; 193983273932SSrinivas Eeda goto unlock; 194083273932SSrinivas Eeda } 194183273932SSrinivas Eeda 194283273932SSrinivas Eeda for (i = 0; i < osb->max_slots; i++) 194383273932SSrinivas Eeda ocfs2_queue_recovery_completion(osb->journal, i, NULL, NULL, 1944ed460cffSJoseph Qi NULL, ORPHAN_NO_NEED_TRUNCATE); 194583273932SSrinivas Eeda /* 194683273932SSrinivas Eeda * We queued a recovery on orphan slots, increment the sequence 194783273932SSrinivas Eeda * number and update LVB so other node will skip the scan for a while 194883273932SSrinivas Eeda */ 194983273932SSrinivas Eeda seqno++; 195015633a22SSrinivas Eeda os->os_count++; 1951395627b0SDeepa Dinamani os->os_scantime = ktime_get_seconds(); 195283273932SSrinivas Eeda unlock: 1953df152c24SSunil Mushran ocfs2_orphan_scan_unlock(osb, seqno); 195483273932SSrinivas Eeda out: 1955b4107950STao Ma trace_ocfs2_queue_orphan_scan_end(os->os_count, os->os_seqno, 1956b4107950STao Ma atomic_read(&os->os_state)); 195783273932SSrinivas Eeda return; 195883273932SSrinivas Eeda } 195983273932SSrinivas Eeda 196083273932SSrinivas Eeda /* Worker task that gets fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT millsec */ 1961b519ea6dSJoseph Qi static void ocfs2_orphan_scan_work(struct work_struct *work) 196283273932SSrinivas Eeda { 196383273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 196483273932SSrinivas Eeda struct ocfs2_super *osb; 196583273932SSrinivas Eeda 196683273932SSrinivas Eeda os = container_of(work, struct ocfs2_orphan_scan, 196783273932SSrinivas Eeda os_orphan_scan_work.work); 196883273932SSrinivas Eeda osb = os->os_osb; 196983273932SSrinivas Eeda 197083273932SSrinivas Eeda mutex_lock(&os->os_lock); 197183273932SSrinivas Eeda ocfs2_queue_orphan_scan(osb); 1972692684e1SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) 197335ddf78eSjiangyiwen queue_delayed_work(osb->ocfs2_wq, &os->os_orphan_scan_work, 197483273932SSrinivas Eeda ocfs2_orphan_scan_timeout()); 197583273932SSrinivas Eeda mutex_unlock(&os->os_lock); 197683273932SSrinivas Eeda } 197783273932SSrinivas Eeda 197883273932SSrinivas Eeda void ocfs2_orphan_scan_stop(struct ocfs2_super *osb) 197983273932SSrinivas Eeda { 198083273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 198183273932SSrinivas Eeda 198283273932SSrinivas Eeda os = &osb->osb_orphan_scan; 1983df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_ACTIVE) { 1984692684e1SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); 198583273932SSrinivas Eeda mutex_lock(&os->os_lock); 198683273932SSrinivas Eeda cancel_delayed_work(&os->os_orphan_scan_work); 198783273932SSrinivas Eeda mutex_unlock(&os->os_lock); 198883273932SSrinivas Eeda } 1989df152c24SSunil Mushran } 199083273932SSrinivas Eeda 1991df152c24SSunil Mushran void ocfs2_orphan_scan_init(struct ocfs2_super *osb) 199283273932SSrinivas Eeda { 199383273932SSrinivas Eeda struct ocfs2_orphan_scan *os; 199483273932SSrinivas Eeda 199583273932SSrinivas Eeda os = &osb->osb_orphan_scan; 199683273932SSrinivas Eeda os->os_osb = osb; 199715633a22SSrinivas Eeda os->os_count = 0; 19983211949fSSunil Mushran os->os_seqno = 0; 199983273932SSrinivas Eeda mutex_init(&os->os_lock); 2000df152c24SSunil Mushran INIT_DELAYED_WORK(&os->os_orphan_scan_work, ocfs2_orphan_scan_work); 20018b712cd5SJeff Mahoney } 200283273932SSrinivas Eeda 20038b712cd5SJeff Mahoney void ocfs2_orphan_scan_start(struct ocfs2_super *osb) 20048b712cd5SJeff Mahoney { 20058b712cd5SJeff Mahoney struct ocfs2_orphan_scan *os; 20068b712cd5SJeff Mahoney 20078b712cd5SJeff Mahoney os = &osb->osb_orphan_scan; 2008395627b0SDeepa Dinamani os->os_scantime = ktime_get_seconds(); 2009df152c24SSunil Mushran if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb)) 2010df152c24SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_INACTIVE); 2011df152c24SSunil Mushran else { 2012df152c24SSunil Mushran atomic_set(&os->os_state, ORPHAN_SCAN_ACTIVE); 201335ddf78eSjiangyiwen queue_delayed_work(osb->ocfs2_wq, &os->os_orphan_scan_work, 201483273932SSrinivas Eeda ocfs2_orphan_scan_timeout()); 2015df152c24SSunil Mushran } 201683273932SSrinivas Eeda } 201783273932SSrinivas Eeda 20185eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv { 20193704412bSAl Viro struct dir_context ctx; 20205eae5b96SMark Fasheh struct inode *head; 20215eae5b96SMark Fasheh struct ocfs2_super *osb; 202230edc43cSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type; 20235eae5b96SMark Fasheh }; 20245eae5b96SMark Fasheh 2025ac7576f4SMiklos Szeredi static int ocfs2_orphan_filldir(struct dir_context *ctx, const char *name, 2026ac7576f4SMiklos Szeredi int name_len, loff_t pos, u64 ino, 2027ac7576f4SMiklos Szeredi unsigned type) 20285eae5b96SMark Fasheh { 2029ac7576f4SMiklos Szeredi struct ocfs2_orphan_filldir_priv *p = 2030ac7576f4SMiklos Szeredi container_of(ctx, struct ocfs2_orphan_filldir_priv, ctx); 20315eae5b96SMark Fasheh struct inode *iter; 20325eae5b96SMark Fasheh 20335eae5b96SMark Fasheh if (name_len == 1 && !strncmp(".", name, 1)) 20345eae5b96SMark Fasheh return 0; 20355eae5b96SMark Fasheh if (name_len == 2 && !strncmp("..", name, 2)) 20365eae5b96SMark Fasheh return 0; 20375eae5b96SMark Fasheh 203830edc43cSJoseph Qi /* do not include dio entry in case of orphan scan */ 203930edc43cSJoseph Qi if ((p->orphan_reco_type == ORPHAN_NO_NEED_TRUNCATE) && 204030edc43cSJoseph Qi (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX, 204130edc43cSJoseph Qi OCFS2_DIO_ORPHAN_PREFIX_LEN))) 204230edc43cSJoseph Qi return 0; 204330edc43cSJoseph Qi 20445eae5b96SMark Fasheh /* Skip bad inodes so that recovery can continue */ 20455eae5b96SMark Fasheh iter = ocfs2_iget(p->osb, ino, 20465fa0613eSJan Kara OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0); 20475eae5b96SMark Fasheh if (IS_ERR(iter)) 20485eae5b96SMark Fasheh return 0; 20495eae5b96SMark Fasheh 205093d911fcSJoseph Qi if (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX, 205193d911fcSJoseph Qi OCFS2_DIO_ORPHAN_PREFIX_LEN)) 205293d911fcSJoseph Qi OCFS2_I(iter)->ip_flags |= OCFS2_INODE_DIO_ORPHAN_ENTRY; 205393d911fcSJoseph Qi 2054ed460cffSJoseph Qi /* Skip inodes which are already added to recover list, since dio may 2055ed460cffSJoseph Qi * happen concurrently with unlink/rename */ 2056ed460cffSJoseph Qi if (OCFS2_I(iter)->ip_next_orphan) { 2057ed460cffSJoseph Qi iput(iter); 2058ed460cffSJoseph Qi return 0; 2059ed460cffSJoseph Qi } 2060ed460cffSJoseph Qi 2061b4107950STao Ma trace_ocfs2_orphan_filldir((unsigned long long)OCFS2_I(iter)->ip_blkno); 20625eae5b96SMark Fasheh /* No locking is required for the next_orphan queue as there 20635eae5b96SMark Fasheh * is only ever a single process doing orphan recovery. */ 20645eae5b96SMark Fasheh OCFS2_I(iter)->ip_next_orphan = p->head; 20655eae5b96SMark Fasheh p->head = iter; 20665eae5b96SMark Fasheh 20675eae5b96SMark Fasheh return 0; 20685eae5b96SMark Fasheh } 20695eae5b96SMark Fasheh 2070b4df6ed8SMark Fasheh static int ocfs2_queue_orphans(struct ocfs2_super *osb, 2071b4df6ed8SMark Fasheh int slot, 207230edc43cSJoseph Qi struct inode **head, 207330edc43cSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 2074ccd979bdSMark Fasheh { 2075b4df6ed8SMark Fasheh int status; 2076ccd979bdSMark Fasheh struct inode *orphan_dir_inode = NULL; 20773704412bSAl Viro struct ocfs2_orphan_filldir_priv priv = { 20783704412bSAl Viro .ctx.actor = ocfs2_orphan_filldir, 20793704412bSAl Viro .osb = osb, 208030edc43cSJoseph Qi .head = *head, 208130edc43cSJoseph Qi .orphan_reco_type = orphan_reco_type 20823704412bSAl Viro }; 2083ccd979bdSMark Fasheh 2084ccd979bdSMark Fasheh orphan_dir_inode = ocfs2_get_system_file_inode(osb, 2085ccd979bdSMark Fasheh ORPHAN_DIR_SYSTEM_INODE, 2086ccd979bdSMark Fasheh slot); 2087ccd979bdSMark Fasheh if (!orphan_dir_inode) { 2088ccd979bdSMark Fasheh status = -ENOENT; 2089ccd979bdSMark Fasheh mlog_errno(status); 2090b4df6ed8SMark Fasheh return status; 2091ccd979bdSMark Fasheh } 2092ccd979bdSMark Fasheh 20935955102cSAl Viro inode_lock(orphan_dir_inode); 2094e63aecb6SMark Fasheh status = ocfs2_inode_lock(orphan_dir_inode, NULL, 0); 2095ccd979bdSMark Fasheh if (status < 0) { 2096ccd979bdSMark Fasheh mlog_errno(status); 2097ccd979bdSMark Fasheh goto out; 2098ccd979bdSMark Fasheh } 2099ccd979bdSMark Fasheh 21003704412bSAl Viro status = ocfs2_dir_foreach(orphan_dir_inode, &priv.ctx); 21015eae5b96SMark Fasheh if (status) { 2102ccd979bdSMark Fasheh mlog_errno(status); 2103a86370fbSMark Fasheh goto out_cluster; 2104ccd979bdSMark Fasheh } 2105ccd979bdSMark Fasheh 21065eae5b96SMark Fasheh *head = priv.head; 2107ccd979bdSMark Fasheh 2108a86370fbSMark Fasheh out_cluster: 2109e63aecb6SMark Fasheh ocfs2_inode_unlock(orphan_dir_inode, 0); 2110b4df6ed8SMark Fasheh out: 21115955102cSAl Viro inode_unlock(orphan_dir_inode); 2112ccd979bdSMark Fasheh iput(orphan_dir_inode); 2113b4df6ed8SMark Fasheh return status; 2114b4df6ed8SMark Fasheh } 2115b4df6ed8SMark Fasheh 2116b4df6ed8SMark Fasheh static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb, 2117b4df6ed8SMark Fasheh int slot) 2118b4df6ed8SMark Fasheh { 2119b4df6ed8SMark Fasheh int ret; 2120b4df6ed8SMark Fasheh 2121b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2122b4df6ed8SMark Fasheh ret = !osb->osb_orphan_wipes[slot]; 2123b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2124b4df6ed8SMark Fasheh return ret; 2125b4df6ed8SMark Fasheh } 2126b4df6ed8SMark Fasheh 2127b4df6ed8SMark Fasheh static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb, 2128b4df6ed8SMark Fasheh int slot) 2129b4df6ed8SMark Fasheh { 2130b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2131b4df6ed8SMark Fasheh /* Mark ourselves such that new processes in delete_inode() 2132b4df6ed8SMark Fasheh * know to quit early. */ 2133b4df6ed8SMark Fasheh ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 2134b4df6ed8SMark Fasheh while (osb->osb_orphan_wipes[slot]) { 2135b4df6ed8SMark Fasheh /* If any processes are already in the middle of an 2136b4df6ed8SMark Fasheh * orphan wipe on this dir, then we need to wait for 2137b4df6ed8SMark Fasheh * them. */ 2138b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2139b4df6ed8SMark Fasheh wait_event_interruptible(osb->osb_wipe_event, 2140b4df6ed8SMark Fasheh ocfs2_orphan_recovery_can_continue(osb, slot)); 2141b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 2142b4df6ed8SMark Fasheh } 2143b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 2144b4df6ed8SMark Fasheh } 2145b4df6ed8SMark Fasheh 2146b4df6ed8SMark Fasheh static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb, 2147b4df6ed8SMark Fasheh int slot) 2148b4df6ed8SMark Fasheh { 2149b4df6ed8SMark Fasheh ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 2150b4df6ed8SMark Fasheh } 2151b4df6ed8SMark Fasheh 2152b4df6ed8SMark Fasheh /* 2153b4df6ed8SMark Fasheh * Orphan recovery. Each mounted node has it's own orphan dir which we 2154b4df6ed8SMark Fasheh * must run during recovery. Our strategy here is to build a list of 2155b4df6ed8SMark Fasheh * the inodes in the orphan dir and iget/iput them. The VFS does 2156b4df6ed8SMark Fasheh * (most) of the rest of the work. 2157b4df6ed8SMark Fasheh * 2158b4df6ed8SMark Fasheh * Orphan recovery can happen at any time, not just mount so we have a 2159b4df6ed8SMark Fasheh * couple of extra considerations. 2160b4df6ed8SMark Fasheh * 2161b4df6ed8SMark Fasheh * - We grab as many inodes as we can under the orphan dir lock - 2162b4df6ed8SMark Fasheh * doing iget() outside the orphan dir risks getting a reference on 2163b4df6ed8SMark Fasheh * an invalid inode. 2164b4df6ed8SMark Fasheh * - We must be sure not to deadlock with other processes on the 2165b4df6ed8SMark Fasheh * system wanting to run delete_inode(). This can happen when they go 2166b4df6ed8SMark Fasheh * to lock the orphan dir and the orphan recovery process attempts to 2167b4df6ed8SMark Fasheh * iget() inside the orphan dir lock. This can be avoided by 2168b4df6ed8SMark Fasheh * advertising our state to ocfs2_delete_inode(). 2169b4df6ed8SMark Fasheh */ 2170b4df6ed8SMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 2171ed460cffSJoseph Qi int slot, 2172ed460cffSJoseph Qi enum ocfs2_orphan_reco_type orphan_reco_type) 2173b4df6ed8SMark Fasheh { 2174b4df6ed8SMark Fasheh int ret = 0; 2175b4df6ed8SMark Fasheh struct inode *inode = NULL; 2176b4df6ed8SMark Fasheh struct inode *iter; 2177b4df6ed8SMark Fasheh struct ocfs2_inode_info *oi; 2178cf1776a9SJoseph Qi struct buffer_head *di_bh = NULL; 2179cf1776a9SJoseph Qi struct ocfs2_dinode *di = NULL; 2180b4df6ed8SMark Fasheh 2181b4107950STao Ma trace_ocfs2_recover_orphans(slot); 2182b4df6ed8SMark Fasheh 2183b4df6ed8SMark Fasheh ocfs2_mark_recovering_orphan_dir(osb, slot); 218430edc43cSJoseph Qi ret = ocfs2_queue_orphans(osb, slot, &inode, orphan_reco_type); 2185b4df6ed8SMark Fasheh ocfs2_clear_recovering_orphan_dir(osb, slot); 2186b4df6ed8SMark Fasheh 2187b4df6ed8SMark Fasheh /* Error here should be noted, but we want to continue with as 2188b4df6ed8SMark Fasheh * many queued inodes as we've got. */ 2189b4df6ed8SMark Fasheh if (ret) 2190b4df6ed8SMark Fasheh mlog_errno(ret); 2191ccd979bdSMark Fasheh 2192ccd979bdSMark Fasheh while (inode) { 2193ccd979bdSMark Fasheh oi = OCFS2_I(inode); 2194b4107950STao Ma trace_ocfs2_recover_orphans_iput( 2195b4107950STao Ma (unsigned long long)oi->ip_blkno); 2196ccd979bdSMark Fasheh 2197ccd979bdSMark Fasheh iter = oi->ip_next_orphan; 2198ed460cffSJoseph Qi oi->ip_next_orphan = NULL; 2199ccd979bdSMark Fasheh 220093d911fcSJoseph Qi if (oi->ip_flags & OCFS2_INODE_DIO_ORPHAN_ENTRY) { 22015955102cSAl Viro inode_lock(inode); 2202cf1776a9SJoseph Qi ret = ocfs2_rw_lock(inode, 1); 2203cf1776a9SJoseph Qi if (ret < 0) { 2204cf1776a9SJoseph Qi mlog_errno(ret); 220593d911fcSJoseph Qi goto unlock_mutex; 2206cf1776a9SJoseph Qi } 2207ed460cffSJoseph Qi /* 2208ed460cffSJoseph Qi * We need to take and drop the inode lock to 2209ed460cffSJoseph Qi * force read inode from disk. 2210ed460cffSJoseph Qi */ 2211cf1776a9SJoseph Qi ret = ocfs2_inode_lock(inode, &di_bh, 1); 2212ed460cffSJoseph Qi if (ret) { 2213ed460cffSJoseph Qi mlog_errno(ret); 2214cf1776a9SJoseph Qi goto unlock_rw; 2215ed460cffSJoseph Qi } 2216cf1776a9SJoseph Qi 2217cf1776a9SJoseph Qi di = (struct ocfs2_dinode *)di_bh->b_data; 2218ed460cffSJoseph Qi 221993d911fcSJoseph Qi if (di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL)) { 2220ed460cffSJoseph Qi ret = ocfs2_truncate_file(inode, di_bh, 2221ed460cffSJoseph Qi i_size_read(inode)); 2222ed460cffSJoseph Qi if (ret < 0) { 2223ed460cffSJoseph Qi if (ret != -ENOSPC) 2224ed460cffSJoseph Qi mlog_errno(ret); 2225cf1776a9SJoseph Qi goto unlock_inode; 2226ed460cffSJoseph Qi } 2227ed460cffSJoseph Qi 222893d911fcSJoseph Qi ret = ocfs2_del_inode_from_orphan(osb, inode, 222993d911fcSJoseph Qi di_bh, 0, 0); 2230ed460cffSJoseph Qi if (ret) 2231ed460cffSJoseph Qi mlog_errno(ret); 223293d911fcSJoseph Qi } 2233cf1776a9SJoseph Qi unlock_inode: 2234cf1776a9SJoseph Qi ocfs2_inode_unlock(inode, 1); 2235512f62acSJoseph Qi brelse(di_bh); 2236512f62acSJoseph Qi di_bh = NULL; 2237cf1776a9SJoseph Qi unlock_rw: 2238cf1776a9SJoseph Qi ocfs2_rw_unlock(inode, 1); 223993d911fcSJoseph Qi unlock_mutex: 22405955102cSAl Viro inode_unlock(inode); 224193d911fcSJoseph Qi 224293d911fcSJoseph Qi /* clear dio flag in ocfs2_inode_info */ 224393d911fcSJoseph Qi oi->ip_flags &= ~OCFS2_INODE_DIO_ORPHAN_ENTRY; 224493d911fcSJoseph Qi } else { 224593d911fcSJoseph Qi spin_lock(&oi->ip_lock); 224693d911fcSJoseph Qi /* Set the proper information to get us going into 224793d911fcSJoseph Qi * ocfs2_delete_inode. */ 224893d911fcSJoseph Qi oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; 224993d911fcSJoseph Qi spin_unlock(&oi->ip_lock); 225093d911fcSJoseph Qi } 225193d911fcSJoseph Qi 2252ccd979bdSMark Fasheh iput(inode); 2253ccd979bdSMark Fasheh inode = iter; 2254ccd979bdSMark Fasheh } 2255ccd979bdSMark Fasheh 2256b4df6ed8SMark Fasheh return ret; 2257ccd979bdSMark Fasheh } 2258ccd979bdSMark Fasheh 225919ece546SJan Kara static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota) 2260ccd979bdSMark Fasheh { 2261ccd979bdSMark Fasheh /* This check is good because ocfs2 will wait on our recovery 2262ccd979bdSMark Fasheh * thread before changing it to something other than MOUNTED 2263ccd979bdSMark Fasheh * or DISABLED. */ 2264ccd979bdSMark Fasheh wait_event(osb->osb_mount_event, 226519ece546SJan Kara (!quota && atomic_read(&osb->vol_state) == VOLUME_MOUNTED) || 226619ece546SJan Kara atomic_read(&osb->vol_state) == VOLUME_MOUNTED_QUOTAS || 2267ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_DISABLED); 2268ccd979bdSMark Fasheh 2269ccd979bdSMark Fasheh /* If there's an error on mount, then we may never get to the 2270ccd979bdSMark Fasheh * MOUNTED flag, but this is set right before 2271ccd979bdSMark Fasheh * dismount_volume() so we can trust it. */ 2272ccd979bdSMark Fasheh if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) { 2273b4107950STao Ma trace_ocfs2_wait_on_mount(VOLUME_DISABLED); 2274ccd979bdSMark Fasheh mlog(0, "mount error, exiting!\n"); 2275ccd979bdSMark Fasheh return -EBUSY; 2276ccd979bdSMark Fasheh } 2277ccd979bdSMark Fasheh 2278ccd979bdSMark Fasheh return 0; 2279ccd979bdSMark Fasheh } 2280ccd979bdSMark Fasheh 2281ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg) 2282ccd979bdSMark Fasheh { 2283ccd979bdSMark Fasheh int status; 2284ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 2285ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 2286ccd979bdSMark Fasheh 2287ccd979bdSMark Fasheh /* we can trust j_num_trans here because _should_stop() is only set in 2288ccd979bdSMark Fasheh * shutdown and nobody other than ourselves should be able to start 2289ccd979bdSMark Fasheh * transactions. committing on shutdown might take a few iterations 2290ccd979bdSMark Fasheh * as final transactions put deleted inodes on the list */ 2291ccd979bdSMark Fasheh while (!(kthread_should_stop() && 2292ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) == 0)) { 2293ccd979bdSMark Fasheh 2294745ae8baSMark Fasheh wait_event_interruptible(osb->checkpoint_event, 2295ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) 2296745ae8baSMark Fasheh || kthread_should_stop()); 2297ccd979bdSMark Fasheh 2298ccd979bdSMark Fasheh status = ocfs2_commit_cache(osb); 229955b465b6SJoseph Qi if (status < 0) { 230055b465b6SJoseph Qi static unsigned long abort_warn_time; 230155b465b6SJoseph Qi 230255b465b6SJoseph Qi /* Warn about this once per minute */ 230355b465b6SJoseph Qi if (printk_timed_ratelimit(&abort_warn_time, 60*HZ)) 230455b465b6SJoseph Qi mlog(ML_ERROR, "status = %d, journal is " 230555b465b6SJoseph Qi "already aborted.\n", status); 230655b465b6SJoseph Qi /* 230755b465b6SJoseph Qi * After ocfs2_commit_cache() fails, j_num_trans has a 230855b465b6SJoseph Qi * non-zero value. Sleep here to avoid a busy-wait 230955b465b6SJoseph Qi * loop. 231055b465b6SJoseph Qi */ 231155b465b6SJoseph Qi msleep_interruptible(1000); 231255b465b6SJoseph Qi } 2313ccd979bdSMark Fasheh 2314ccd979bdSMark Fasheh if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ 2315ccd979bdSMark Fasheh mlog(ML_KTHREAD, 2316ccd979bdSMark Fasheh "commit_thread: %u transactions pending on " 2317ccd979bdSMark Fasheh "shutdown\n", 2318ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans)); 2319ccd979bdSMark Fasheh } 2320ccd979bdSMark Fasheh } 2321ccd979bdSMark Fasheh 2322ccd979bdSMark Fasheh return 0; 2323ccd979bdSMark Fasheh } 2324ccd979bdSMark Fasheh 2325539d8264SSunil Mushran /* Reads all the journal inodes without taking any cluster locks. Used 2326539d8264SSunil Mushran * for hard readonly access to determine whether any journal requires 2327539d8264SSunil Mushran * recovery. Also used to refresh the recovery generation numbers after 2328539d8264SSunil Mushran * a journal has been recovered by another node. 2329539d8264SSunil Mushran */ 2330ccd979bdSMark Fasheh int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) 2331ccd979bdSMark Fasheh { 2332ccd979bdSMark Fasheh int ret = 0; 2333ccd979bdSMark Fasheh unsigned int slot; 2334539d8264SSunil Mushran struct buffer_head *di_bh = NULL; 2335ccd979bdSMark Fasheh struct ocfs2_dinode *di; 2336539d8264SSunil Mushran int journal_dirty = 0; 2337ccd979bdSMark Fasheh 2338ccd979bdSMark Fasheh for(slot = 0; slot < osb->max_slots; slot++) { 2339539d8264SSunil Mushran ret = ocfs2_read_journal_inode(osb, slot, &di_bh, NULL); 2340539d8264SSunil Mushran if (ret) { 2341ccd979bdSMark Fasheh mlog_errno(ret); 2342ccd979bdSMark Fasheh goto out; 2343ccd979bdSMark Fasheh } 2344ccd979bdSMark Fasheh 2345ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) di_bh->b_data; 2346ccd979bdSMark Fasheh 2347539d8264SSunil Mushran osb->slot_recovery_generations[slot] = 2348539d8264SSunil Mushran ocfs2_get_recovery_generation(di); 2349539d8264SSunil Mushran 2350ccd979bdSMark Fasheh if (le32_to_cpu(di->id1.journal1.ij_flags) & 2351ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL) 2352539d8264SSunil Mushran journal_dirty = 1; 2353ccd979bdSMark Fasheh 2354ccd979bdSMark Fasheh brelse(di_bh); 2355539d8264SSunil Mushran di_bh = NULL; 2356ccd979bdSMark Fasheh } 2357ccd979bdSMark Fasheh 2358ccd979bdSMark Fasheh out: 2359539d8264SSunil Mushran if (journal_dirty) 2360539d8264SSunil Mushran ret = -EROFS; 2361ccd979bdSMark Fasheh return ret; 2362ccd979bdSMark Fasheh } 2363