1ccd979bdSMark Fasheh /* -*- mode: c; c-basic-offset: 8; -*- 2ccd979bdSMark Fasheh * vim: noexpandtab sw=8 ts=8 sts=0: 3ccd979bdSMark Fasheh * 4ccd979bdSMark Fasheh * journal.c 5ccd979bdSMark Fasheh * 6ccd979bdSMark Fasheh * Defines functions of journalling api 7ccd979bdSMark Fasheh * 8ccd979bdSMark Fasheh * Copyright (C) 2003, 2004 Oracle. All rights reserved. 9ccd979bdSMark Fasheh * 10ccd979bdSMark Fasheh * This program is free software; you can redistribute it and/or 11ccd979bdSMark Fasheh * modify it under the terms of the GNU General Public 12ccd979bdSMark Fasheh * License as published by the Free Software Foundation; either 13ccd979bdSMark Fasheh * version 2 of the License, or (at your option) any later version. 14ccd979bdSMark Fasheh * 15ccd979bdSMark Fasheh * This program is distributed in the hope that it will be useful, 16ccd979bdSMark Fasheh * but WITHOUT ANY WARRANTY; without even the implied warranty of 17ccd979bdSMark Fasheh * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18ccd979bdSMark Fasheh * General Public License for more details. 19ccd979bdSMark Fasheh * 20ccd979bdSMark Fasheh * You should have received a copy of the GNU General Public 21ccd979bdSMark Fasheh * License along with this program; if not, write to the 22ccd979bdSMark Fasheh * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23ccd979bdSMark Fasheh * Boston, MA 021110-1307, USA. 24ccd979bdSMark Fasheh */ 25ccd979bdSMark Fasheh 26ccd979bdSMark Fasheh #include <linux/fs.h> 27ccd979bdSMark Fasheh #include <linux/types.h> 28ccd979bdSMark Fasheh #include <linux/slab.h> 29ccd979bdSMark Fasheh #include <linux/highmem.h> 30ccd979bdSMark Fasheh #include <linux/kthread.h> 31ccd979bdSMark Fasheh 32ccd979bdSMark Fasheh #define MLOG_MASK_PREFIX ML_JOURNAL 33ccd979bdSMark Fasheh #include <cluster/masklog.h> 34ccd979bdSMark Fasheh 35ccd979bdSMark Fasheh #include "ocfs2.h" 36ccd979bdSMark Fasheh 37ccd979bdSMark Fasheh #include "alloc.h" 38316f4b9fSMark Fasheh #include "dir.h" 39ccd979bdSMark Fasheh #include "dlmglue.h" 40ccd979bdSMark Fasheh #include "extent_map.h" 41ccd979bdSMark Fasheh #include "heartbeat.h" 42ccd979bdSMark Fasheh #include "inode.h" 43ccd979bdSMark Fasheh #include "journal.h" 44ccd979bdSMark Fasheh #include "localalloc.h" 45ccd979bdSMark Fasheh #include "slot_map.h" 46ccd979bdSMark Fasheh #include "super.h" 47ccd979bdSMark Fasheh #include "sysfile.h" 48ccd979bdSMark Fasheh 49ccd979bdSMark Fasheh #include "buffer_head_io.h" 50ccd979bdSMark Fasheh 5134af946aSIngo Molnar DEFINE_SPINLOCK(trans_inc_lock); 52ccd979bdSMark Fasheh 53ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode); 54ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 55ccd979bdSMark Fasheh int node_num); 56ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg); 57ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb); 58ccd979bdSMark Fasheh static int ocfs2_wait_on_mount(struct ocfs2_super *osb); 59ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 60ccd979bdSMark Fasheh int dirty); 61ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 62ccd979bdSMark Fasheh int slot_num); 63ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 64ccd979bdSMark Fasheh int slot); 65ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg); 66ccd979bdSMark Fasheh 67553abd04SJoel Becker 68553abd04SJoel Becker /* 69553abd04SJoel Becker * The recovery_list is a simple linked list of node numbers to recover. 70553abd04SJoel Becker * It is protected by the recovery_lock. 71553abd04SJoel Becker */ 72553abd04SJoel Becker 73553abd04SJoel Becker struct ocfs2_recovery_map { 74fc881fa0SJoel Becker unsigned int rm_used; 75553abd04SJoel Becker unsigned int *rm_entries; 76553abd04SJoel Becker }; 77553abd04SJoel Becker 78553abd04SJoel Becker int ocfs2_recovery_init(struct ocfs2_super *osb) 79553abd04SJoel Becker { 80553abd04SJoel Becker struct ocfs2_recovery_map *rm; 81553abd04SJoel Becker 82553abd04SJoel Becker mutex_init(&osb->recovery_lock); 83553abd04SJoel Becker osb->disable_recovery = 0; 84553abd04SJoel Becker osb->recovery_thread_task = NULL; 85553abd04SJoel Becker init_waitqueue_head(&osb->recovery_event); 86553abd04SJoel Becker 87553abd04SJoel Becker rm = kzalloc(sizeof(struct ocfs2_recovery_map) + 88553abd04SJoel Becker osb->max_slots * sizeof(unsigned int), 89553abd04SJoel Becker GFP_KERNEL); 90553abd04SJoel Becker if (!rm) { 91553abd04SJoel Becker mlog_errno(-ENOMEM); 92553abd04SJoel Becker return -ENOMEM; 93553abd04SJoel Becker } 94553abd04SJoel Becker 95553abd04SJoel Becker rm->rm_entries = (unsigned int *)((char *)rm + 96553abd04SJoel Becker sizeof(struct ocfs2_recovery_map)); 97553abd04SJoel Becker osb->recovery_map = rm; 98553abd04SJoel Becker 99553abd04SJoel Becker return 0; 100553abd04SJoel Becker } 101553abd04SJoel Becker 102553abd04SJoel Becker /* we can't grab the goofy sem lock from inside wait_event, so we use 103553abd04SJoel Becker * memory barriers to make sure that we'll see the null task before 104553abd04SJoel Becker * being woken up */ 105553abd04SJoel Becker static int ocfs2_recovery_thread_running(struct ocfs2_super *osb) 106553abd04SJoel Becker { 107553abd04SJoel Becker mb(); 108553abd04SJoel Becker return osb->recovery_thread_task != NULL; 109553abd04SJoel Becker } 110553abd04SJoel Becker 111553abd04SJoel Becker void ocfs2_recovery_exit(struct ocfs2_super *osb) 112553abd04SJoel Becker { 113553abd04SJoel Becker struct ocfs2_recovery_map *rm; 114553abd04SJoel Becker 115553abd04SJoel Becker /* disable any new recovery threads and wait for any currently 116553abd04SJoel Becker * running ones to exit. Do this before setting the vol_state. */ 117553abd04SJoel Becker mutex_lock(&osb->recovery_lock); 118553abd04SJoel Becker osb->disable_recovery = 1; 119553abd04SJoel Becker mutex_unlock(&osb->recovery_lock); 120553abd04SJoel Becker wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); 121553abd04SJoel Becker 122553abd04SJoel Becker /* At this point, we know that no more recovery threads can be 123553abd04SJoel Becker * launched, so wait for any recovery completion work to 124553abd04SJoel Becker * complete. */ 125553abd04SJoel Becker flush_workqueue(ocfs2_wq); 126553abd04SJoel Becker 127553abd04SJoel Becker /* 128553abd04SJoel Becker * Now that recovery is shut down, and the osb is about to be 129553abd04SJoel Becker * freed, the osb_lock is not taken here. 130553abd04SJoel Becker */ 131553abd04SJoel Becker rm = osb->recovery_map; 132553abd04SJoel Becker /* XXX: Should we bug if there are dirty entries? */ 133553abd04SJoel Becker 134553abd04SJoel Becker kfree(rm); 135553abd04SJoel Becker } 136553abd04SJoel Becker 137553abd04SJoel Becker static int __ocfs2_recovery_map_test(struct ocfs2_super *osb, 138553abd04SJoel Becker unsigned int node_num) 139553abd04SJoel Becker { 140553abd04SJoel Becker int i; 141553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 142553abd04SJoel Becker 143553abd04SJoel Becker assert_spin_locked(&osb->osb_lock); 144553abd04SJoel Becker 145553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 146553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 147553abd04SJoel Becker return 1; 148553abd04SJoel Becker } 149553abd04SJoel Becker 150553abd04SJoel Becker return 0; 151553abd04SJoel Becker } 152553abd04SJoel Becker 153553abd04SJoel Becker /* Behaves like test-and-set. Returns the previous value */ 154553abd04SJoel Becker static int ocfs2_recovery_map_set(struct ocfs2_super *osb, 155553abd04SJoel Becker unsigned int node_num) 156553abd04SJoel Becker { 157553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 158553abd04SJoel Becker 159553abd04SJoel Becker spin_lock(&osb->osb_lock); 160553abd04SJoel Becker if (__ocfs2_recovery_map_test(osb, node_num)) { 161553abd04SJoel Becker spin_unlock(&osb->osb_lock); 162553abd04SJoel Becker return 1; 163553abd04SJoel Becker } 164553abd04SJoel Becker 165553abd04SJoel Becker /* XXX: Can this be exploited? Not from o2dlm... */ 166553abd04SJoel Becker BUG_ON(rm->rm_used >= osb->max_slots); 167553abd04SJoel Becker 168553abd04SJoel Becker rm->rm_entries[rm->rm_used] = node_num; 169553abd04SJoel Becker rm->rm_used++; 170553abd04SJoel Becker spin_unlock(&osb->osb_lock); 171553abd04SJoel Becker 172553abd04SJoel Becker return 0; 173553abd04SJoel Becker } 174553abd04SJoel Becker 175553abd04SJoel Becker static void ocfs2_recovery_map_clear(struct ocfs2_super *osb, 176553abd04SJoel Becker unsigned int node_num) 177553abd04SJoel Becker { 178553abd04SJoel Becker int i; 179553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 180553abd04SJoel Becker 181553abd04SJoel Becker spin_lock(&osb->osb_lock); 182553abd04SJoel Becker 183553abd04SJoel Becker for (i = 0; i < rm->rm_used; i++) { 184553abd04SJoel Becker if (rm->rm_entries[i] == node_num) 185553abd04SJoel Becker break; 186553abd04SJoel Becker } 187553abd04SJoel Becker 188553abd04SJoel Becker if (i < rm->rm_used) { 189553abd04SJoel Becker /* XXX: be careful with the pointer math */ 190553abd04SJoel Becker memmove(&(rm->rm_entries[i]), &(rm->rm_entries[i + 1]), 191553abd04SJoel Becker (rm->rm_used - i - 1) * sizeof(unsigned int)); 192553abd04SJoel Becker rm->rm_used--; 193553abd04SJoel Becker } 194553abd04SJoel Becker 195553abd04SJoel Becker spin_unlock(&osb->osb_lock); 196553abd04SJoel Becker } 197553abd04SJoel Becker 198ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb) 199ccd979bdSMark Fasheh { 200ccd979bdSMark Fasheh int status = 0; 201ccd979bdSMark Fasheh unsigned int flushed; 202ccd979bdSMark Fasheh unsigned long old_id; 203ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 204ccd979bdSMark Fasheh 205ccd979bdSMark Fasheh mlog_entry_void(); 206ccd979bdSMark Fasheh 207ccd979bdSMark Fasheh journal = osb->journal; 208ccd979bdSMark Fasheh 209ccd979bdSMark Fasheh /* Flush all pending commits and checkpoint the journal. */ 210ccd979bdSMark Fasheh down_write(&journal->j_trans_barrier); 211ccd979bdSMark Fasheh 212ccd979bdSMark Fasheh if (atomic_read(&journal->j_num_trans) == 0) { 213ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 214ccd979bdSMark Fasheh mlog(0, "No transactions for me to flush!\n"); 215ccd979bdSMark Fasheh goto finally; 216ccd979bdSMark Fasheh } 217ccd979bdSMark Fasheh 218ccd979bdSMark Fasheh journal_lock_updates(journal->j_journal); 219ccd979bdSMark Fasheh status = journal_flush(journal->j_journal); 220ccd979bdSMark Fasheh journal_unlock_updates(journal->j_journal); 221ccd979bdSMark Fasheh if (status < 0) { 222ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 223ccd979bdSMark Fasheh mlog_errno(status); 224ccd979bdSMark Fasheh goto finally; 225ccd979bdSMark Fasheh } 226ccd979bdSMark Fasheh 227ccd979bdSMark Fasheh old_id = ocfs2_inc_trans_id(journal); 228ccd979bdSMark Fasheh 229ccd979bdSMark Fasheh flushed = atomic_read(&journal->j_num_trans); 230ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 231ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 232ccd979bdSMark Fasheh 233ccd979bdSMark Fasheh mlog(0, "commit_thread: flushed transaction %lu (%u handles)\n", 234ccd979bdSMark Fasheh journal->j_trans_id, flushed); 235ccd979bdSMark Fasheh 23634d024f8SMark Fasheh ocfs2_wake_downconvert_thread(osb); 237ccd979bdSMark Fasheh wake_up(&journal->j_checkpointed); 238ccd979bdSMark Fasheh finally: 239ccd979bdSMark Fasheh mlog_exit(status); 240ccd979bdSMark Fasheh return status; 241ccd979bdSMark Fasheh } 242ccd979bdSMark Fasheh 243ccd979bdSMark Fasheh /* pass it NULL and it will allocate a new handle object for you. If 244ccd979bdSMark Fasheh * you pass it a handle however, it may still return error, in which 245ccd979bdSMark Fasheh * case it has free'd the passed handle for you. */ 2461fabe148SMark Fasheh handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs) 247ccd979bdSMark Fasheh { 248ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 2491fabe148SMark Fasheh handle_t *handle; 250ccd979bdSMark Fasheh 251ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb || !osb->journal->j_journal); 252ccd979bdSMark Fasheh 25365eff9ccSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 25465eff9ccSMark Fasheh return ERR_PTR(-EROFS); 255ccd979bdSMark Fasheh 256ccd979bdSMark Fasheh BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); 257ccd979bdSMark Fasheh BUG_ON(max_buffs <= 0); 258ccd979bdSMark Fasheh 259ccd979bdSMark Fasheh /* JBD might support this, but our journalling code doesn't yet. */ 260ccd979bdSMark Fasheh if (journal_current_handle()) { 261ccd979bdSMark Fasheh mlog(ML_ERROR, "Recursive transaction attempted!\n"); 262ccd979bdSMark Fasheh BUG(); 263ccd979bdSMark Fasheh } 264ccd979bdSMark Fasheh 265ccd979bdSMark Fasheh down_read(&osb->journal->j_trans_barrier); 266ccd979bdSMark Fasheh 2671fabe148SMark Fasheh handle = journal_start(journal, max_buffs); 2681fabe148SMark Fasheh if (IS_ERR(handle)) { 269ccd979bdSMark Fasheh up_read(&osb->journal->j_trans_barrier); 270ccd979bdSMark Fasheh 2711fabe148SMark Fasheh mlog_errno(PTR_ERR(handle)); 272ccd979bdSMark Fasheh 273ccd979bdSMark Fasheh if (is_journal_aborted(journal)) { 274ccd979bdSMark Fasheh ocfs2_abort(osb->sb, "Detected aborted journal"); 2751fabe148SMark Fasheh handle = ERR_PTR(-EROFS); 276ccd979bdSMark Fasheh } 277c271c5c2SSunil Mushran } else { 278c271c5c2SSunil Mushran if (!ocfs2_mount_local(osb)) 279ccd979bdSMark Fasheh atomic_inc(&(osb->journal->j_num_trans)); 280c271c5c2SSunil Mushran } 281ccd979bdSMark Fasheh 282ccd979bdSMark Fasheh return handle; 283ccd979bdSMark Fasheh } 284ccd979bdSMark Fasheh 2851fabe148SMark Fasheh int ocfs2_commit_trans(struct ocfs2_super *osb, 2861fabe148SMark Fasheh handle_t *handle) 287ccd979bdSMark Fasheh { 2881fabe148SMark Fasheh int ret; 28902dc1af4SMark Fasheh struct ocfs2_journal *journal = osb->journal; 290ccd979bdSMark Fasheh 291ccd979bdSMark Fasheh BUG_ON(!handle); 292ccd979bdSMark Fasheh 2931fabe148SMark Fasheh ret = journal_stop(handle); 2941fabe148SMark Fasheh if (ret < 0) 2951fabe148SMark Fasheh mlog_errno(ret); 296ccd979bdSMark Fasheh 297ccd979bdSMark Fasheh up_read(&journal->j_trans_barrier); 298ccd979bdSMark Fasheh 2991fabe148SMark Fasheh return ret; 300ccd979bdSMark Fasheh } 301ccd979bdSMark Fasheh 302ccd979bdSMark Fasheh /* 303ccd979bdSMark Fasheh * 'nblocks' is what you want to add to the current 304ccd979bdSMark Fasheh * transaction. extend_trans will either extend the current handle by 305ccd979bdSMark Fasheh * nblocks, or commit it and start a new one with nblocks credits. 306ccd979bdSMark Fasheh * 307e8aed345SMark Fasheh * This might call journal_restart() which will commit dirty buffers 308e8aed345SMark Fasheh * and then restart the transaction. Before calling 309e8aed345SMark Fasheh * ocfs2_extend_trans(), any changed blocks should have been 310e8aed345SMark Fasheh * dirtied. After calling it, all blocks which need to be changed must 311e8aed345SMark Fasheh * go through another set of journal_access/journal_dirty calls. 312e8aed345SMark Fasheh * 313ccd979bdSMark Fasheh * WARNING: This will not release any semaphores or disk locks taken 314ccd979bdSMark Fasheh * during the transaction, so make sure they were taken *before* 315ccd979bdSMark Fasheh * start_trans or we'll have ordering deadlocks. 316ccd979bdSMark Fasheh * 317ccd979bdSMark Fasheh * WARNING2: Note that we do *not* drop j_trans_barrier here. This is 318ccd979bdSMark Fasheh * good because transaction ids haven't yet been recorded on the 319ccd979bdSMark Fasheh * cluster locks associated with this handle. 320ccd979bdSMark Fasheh */ 3211fc58146SMark Fasheh int ocfs2_extend_trans(handle_t *handle, int nblocks) 322ccd979bdSMark Fasheh { 323ccd979bdSMark Fasheh int status; 324ccd979bdSMark Fasheh 325ccd979bdSMark Fasheh BUG_ON(!handle); 326ccd979bdSMark Fasheh BUG_ON(!nblocks); 327ccd979bdSMark Fasheh 328ccd979bdSMark Fasheh mlog_entry_void(); 329ccd979bdSMark Fasheh 330ccd979bdSMark Fasheh mlog(0, "Trying to extend transaction by %d blocks\n", nblocks); 331ccd979bdSMark Fasheh 332e407e397SJoel Becker #ifdef CONFIG_OCFS2_DEBUG_FS 3330879c584SMark Fasheh status = 1; 3340879c584SMark Fasheh #else 3351fc58146SMark Fasheh status = journal_extend(handle, nblocks); 336ccd979bdSMark Fasheh if (status < 0) { 337ccd979bdSMark Fasheh mlog_errno(status); 338ccd979bdSMark Fasheh goto bail; 339ccd979bdSMark Fasheh } 3400879c584SMark Fasheh #endif 341ccd979bdSMark Fasheh 342ccd979bdSMark Fasheh if (status > 0) { 343ccd979bdSMark Fasheh mlog(0, "journal_extend failed, trying journal_restart\n"); 3441fc58146SMark Fasheh status = journal_restart(handle, nblocks); 345ccd979bdSMark Fasheh if (status < 0) { 346ccd979bdSMark Fasheh mlog_errno(status); 347ccd979bdSMark Fasheh goto bail; 348ccd979bdSMark Fasheh } 34901ddf1e1SMark Fasheh } 350ccd979bdSMark Fasheh 351ccd979bdSMark Fasheh status = 0; 352ccd979bdSMark Fasheh bail: 353ccd979bdSMark Fasheh 354ccd979bdSMark Fasheh mlog_exit(status); 355ccd979bdSMark Fasheh return status; 356ccd979bdSMark Fasheh } 357ccd979bdSMark Fasheh 3581fabe148SMark Fasheh int ocfs2_journal_access(handle_t *handle, 359ccd979bdSMark Fasheh struct inode *inode, 360ccd979bdSMark Fasheh struct buffer_head *bh, 361ccd979bdSMark Fasheh int type) 362ccd979bdSMark Fasheh { 363ccd979bdSMark Fasheh int status; 364ccd979bdSMark Fasheh 365ccd979bdSMark Fasheh BUG_ON(!inode); 366ccd979bdSMark Fasheh BUG_ON(!handle); 367ccd979bdSMark Fasheh BUG_ON(!bh); 368ccd979bdSMark Fasheh 369205f87f6SBadari Pulavarty mlog_entry("bh->b_blocknr=%llu, type=%d (\"%s\"), bh->b_size = %zu\n", 370ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr, type, 371ccd979bdSMark Fasheh (type == OCFS2_JOURNAL_ACCESS_CREATE) ? 372ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_CREATE" : 373ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_WRITE", 374ccd979bdSMark Fasheh bh->b_size); 375ccd979bdSMark Fasheh 376ccd979bdSMark Fasheh /* we can safely remove this assertion after testing. */ 377ccd979bdSMark Fasheh if (!buffer_uptodate(bh)) { 378ccd979bdSMark Fasheh mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); 379ccd979bdSMark Fasheh mlog(ML_ERROR, "b_blocknr=%llu\n", 380ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 381ccd979bdSMark Fasheh BUG(); 382ccd979bdSMark Fasheh } 383ccd979bdSMark Fasheh 384ccd979bdSMark Fasheh /* Set the current transaction information on the inode so 385ccd979bdSMark Fasheh * that the locking code knows whether it can drop it's locks 386ccd979bdSMark Fasheh * on this inode or not. We're protected from the commit 387ccd979bdSMark Fasheh * thread updating the current transaction id until 388ccd979bdSMark Fasheh * ocfs2_commit_trans() because ocfs2_start_trans() took 389ccd979bdSMark Fasheh * j_trans_barrier for us. */ 390ccd979bdSMark Fasheh ocfs2_set_inode_lock_trans(OCFS2_SB(inode->i_sb)->journal, inode); 391ccd979bdSMark Fasheh 392251b6eccSMark Fasheh mutex_lock(&OCFS2_I(inode)->ip_io_mutex); 393ccd979bdSMark Fasheh switch (type) { 394ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_CREATE: 395ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_WRITE: 3961fabe148SMark Fasheh status = journal_get_write_access(handle, bh); 397ccd979bdSMark Fasheh break; 398ccd979bdSMark Fasheh 399ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_UNDO: 4001fabe148SMark Fasheh status = journal_get_undo_access(handle, bh); 401ccd979bdSMark Fasheh break; 402ccd979bdSMark Fasheh 403ccd979bdSMark Fasheh default: 404ccd979bdSMark Fasheh status = -EINVAL; 405ccd979bdSMark Fasheh mlog(ML_ERROR, "Uknown access type!\n"); 406ccd979bdSMark Fasheh } 407251b6eccSMark Fasheh mutex_unlock(&OCFS2_I(inode)->ip_io_mutex); 408ccd979bdSMark Fasheh 409ccd979bdSMark Fasheh if (status < 0) 410ccd979bdSMark Fasheh mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", 411ccd979bdSMark Fasheh status, type); 412ccd979bdSMark Fasheh 413ccd979bdSMark Fasheh mlog_exit(status); 414ccd979bdSMark Fasheh return status; 415ccd979bdSMark Fasheh } 416ccd979bdSMark Fasheh 4171fabe148SMark Fasheh int ocfs2_journal_dirty(handle_t *handle, 418ccd979bdSMark Fasheh struct buffer_head *bh) 419ccd979bdSMark Fasheh { 420ccd979bdSMark Fasheh int status; 421ccd979bdSMark Fasheh 422ccd979bdSMark Fasheh mlog_entry("(bh->b_blocknr=%llu)\n", 423ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 424ccd979bdSMark Fasheh 4251fabe148SMark Fasheh status = journal_dirty_metadata(handle, bh); 426ccd979bdSMark Fasheh if (status < 0) 427ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not dirty metadata buffer. " 428ccd979bdSMark Fasheh "(bh->b_blocknr=%llu)\n", 429ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 430ccd979bdSMark Fasheh 431ccd979bdSMark Fasheh mlog_exit(status); 432ccd979bdSMark Fasheh return status; 433ccd979bdSMark Fasheh } 434ccd979bdSMark Fasheh 435ccd979bdSMark Fasheh int ocfs2_journal_dirty_data(handle_t *handle, 436ccd979bdSMark Fasheh struct buffer_head *bh) 437ccd979bdSMark Fasheh { 438ccd979bdSMark Fasheh int err = journal_dirty_data(handle, bh); 439ccd979bdSMark Fasheh if (err) 440ccd979bdSMark Fasheh mlog_errno(err); 441ccd979bdSMark Fasheh /* TODO: When we can handle it, abort the handle and go RO on 442ccd979bdSMark Fasheh * error here. */ 443ccd979bdSMark Fasheh 444ccd979bdSMark Fasheh return err; 445ccd979bdSMark Fasheh } 446ccd979bdSMark Fasheh 447d147b3d6SMark Fasheh #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD_DEFAULT_MAX_COMMIT_AGE) 448ccd979bdSMark Fasheh 449ccd979bdSMark Fasheh void ocfs2_set_journal_params(struct ocfs2_super *osb) 450ccd979bdSMark Fasheh { 451ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 452d147b3d6SMark Fasheh unsigned long commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; 453d147b3d6SMark Fasheh 454d147b3d6SMark Fasheh if (osb->osb_commit_interval) 455d147b3d6SMark Fasheh commit_interval = osb->osb_commit_interval; 456ccd979bdSMark Fasheh 457ccd979bdSMark Fasheh spin_lock(&journal->j_state_lock); 458d147b3d6SMark Fasheh journal->j_commit_interval = commit_interval; 459ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) 460ccd979bdSMark Fasheh journal->j_flags |= JFS_BARRIER; 461ccd979bdSMark Fasheh else 462ccd979bdSMark Fasheh journal->j_flags &= ~JFS_BARRIER; 463ccd979bdSMark Fasheh spin_unlock(&journal->j_state_lock); 464ccd979bdSMark Fasheh } 465ccd979bdSMark Fasheh 466ccd979bdSMark Fasheh int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty) 467ccd979bdSMark Fasheh { 468ccd979bdSMark Fasheh int status = -1; 469ccd979bdSMark Fasheh struct inode *inode = NULL; /* the journal inode */ 470ccd979bdSMark Fasheh journal_t *j_journal = NULL; 471ccd979bdSMark Fasheh struct ocfs2_dinode *di = NULL; 472ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 473ccd979bdSMark Fasheh struct ocfs2_super *osb; 474e63aecb6SMark Fasheh int inode_lock = 0; 475ccd979bdSMark Fasheh 476ccd979bdSMark Fasheh mlog_entry_void(); 477ccd979bdSMark Fasheh 478ccd979bdSMark Fasheh BUG_ON(!journal); 479ccd979bdSMark Fasheh 480ccd979bdSMark Fasheh osb = journal->j_osb; 481ccd979bdSMark Fasheh 482ccd979bdSMark Fasheh /* already have the inode for our journal */ 483ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 484ccd979bdSMark Fasheh osb->slot_num); 485ccd979bdSMark Fasheh if (inode == NULL) { 486ccd979bdSMark Fasheh status = -EACCES; 487ccd979bdSMark Fasheh mlog_errno(status); 488ccd979bdSMark Fasheh goto done; 489ccd979bdSMark Fasheh } 490ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 491ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 492ccd979bdSMark Fasheh iput(inode); 493ccd979bdSMark Fasheh inode = NULL; 494ccd979bdSMark Fasheh status = -EACCES; 495ccd979bdSMark Fasheh goto done; 496ccd979bdSMark Fasheh } 497ccd979bdSMark Fasheh 498ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 499ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count++; 500ccd979bdSMark Fasheh 5016eff5790SMark Fasheh /* Skip recovery waits here - journal inode metadata never 5026eff5790SMark Fasheh * changes in a live cluster so it can be considered an 5036eff5790SMark Fasheh * exception to the rule. */ 504e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 505ccd979bdSMark Fasheh if (status < 0) { 506ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 507ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not get lock on journal!\n"); 508ccd979bdSMark Fasheh goto done; 509ccd979bdSMark Fasheh } 510ccd979bdSMark Fasheh 511e63aecb6SMark Fasheh inode_lock = 1; 512ccd979bdSMark Fasheh di = (struct ocfs2_dinode *)bh->b_data; 513ccd979bdSMark Fasheh 514ccd979bdSMark Fasheh if (inode->i_size < OCFS2_MIN_JOURNAL_SIZE) { 515ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", 516ccd979bdSMark Fasheh inode->i_size); 517ccd979bdSMark Fasheh status = -EINVAL; 518ccd979bdSMark Fasheh goto done; 519ccd979bdSMark Fasheh } 520ccd979bdSMark Fasheh 521ccd979bdSMark Fasheh mlog(0, "inode->i_size = %lld\n", inode->i_size); 5225515eff8SAndrew Morton mlog(0, "inode->i_blocks = %llu\n", 5235515eff8SAndrew Morton (unsigned long long)inode->i_blocks); 524ccd979bdSMark Fasheh mlog(0, "inode->ip_clusters = %u\n", OCFS2_I(inode)->ip_clusters); 525ccd979bdSMark Fasheh 526ccd979bdSMark Fasheh /* call the kernels journal init function now */ 527ccd979bdSMark Fasheh j_journal = journal_init_inode(inode); 528ccd979bdSMark Fasheh if (j_journal == NULL) { 529ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 530ccd979bdSMark Fasheh status = -EINVAL; 531ccd979bdSMark Fasheh goto done; 532ccd979bdSMark Fasheh } 533ccd979bdSMark Fasheh 534ccd979bdSMark Fasheh mlog(0, "Returned from journal_init_inode\n"); 535ccd979bdSMark Fasheh mlog(0, "j_journal->j_maxlen = %u\n", j_journal->j_maxlen); 536ccd979bdSMark Fasheh 537ccd979bdSMark Fasheh *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & 538ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL); 539ccd979bdSMark Fasheh 540ccd979bdSMark Fasheh journal->j_journal = j_journal; 541ccd979bdSMark Fasheh journal->j_inode = inode; 542ccd979bdSMark Fasheh journal->j_bh = bh; 543ccd979bdSMark Fasheh 544ccd979bdSMark Fasheh ocfs2_set_journal_params(osb); 545ccd979bdSMark Fasheh 546ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_LOADED; 547ccd979bdSMark Fasheh 548ccd979bdSMark Fasheh status = 0; 549ccd979bdSMark Fasheh done: 550ccd979bdSMark Fasheh if (status < 0) { 551e63aecb6SMark Fasheh if (inode_lock) 552e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 553ccd979bdSMark Fasheh if (bh != NULL) 554ccd979bdSMark Fasheh brelse(bh); 555ccd979bdSMark Fasheh if (inode) { 556ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 557ccd979bdSMark Fasheh iput(inode); 558ccd979bdSMark Fasheh } 559ccd979bdSMark Fasheh } 560ccd979bdSMark Fasheh 561ccd979bdSMark Fasheh mlog_exit(status); 562ccd979bdSMark Fasheh return status; 563ccd979bdSMark Fasheh } 564ccd979bdSMark Fasheh 565ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 566ccd979bdSMark Fasheh int dirty) 567ccd979bdSMark Fasheh { 568ccd979bdSMark Fasheh int status; 569ccd979bdSMark Fasheh unsigned int flags; 570ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 571ccd979bdSMark Fasheh struct buffer_head *bh = journal->j_bh; 572ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 573ccd979bdSMark Fasheh 574ccd979bdSMark Fasheh mlog_entry_void(); 575ccd979bdSMark Fasheh 576ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *)bh->b_data; 577ccd979bdSMark Fasheh if (!OCFS2_IS_VALID_DINODE(fe)) { 578ccd979bdSMark Fasheh /* This is called from startup/shutdown which will 579ccd979bdSMark Fasheh * handle the errors in a specific manner, so no need 580ccd979bdSMark Fasheh * to call ocfs2_error() here. */ 581b0697053SMark Fasheh mlog(ML_ERROR, "Journal dinode %llu has invalid " 5821ca1a111SMark Fasheh "signature: %.*s", 5831ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(fe->i_blkno), 7, 584b0697053SMark Fasheh fe->i_signature); 585ccd979bdSMark Fasheh status = -EIO; 586ccd979bdSMark Fasheh goto out; 587ccd979bdSMark Fasheh } 588ccd979bdSMark Fasheh 589ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 590ccd979bdSMark Fasheh if (dirty) 591ccd979bdSMark Fasheh flags |= OCFS2_JOURNAL_DIRTY_FL; 592ccd979bdSMark Fasheh else 593ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 594ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 595ccd979bdSMark Fasheh 596ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, journal->j_inode); 597ccd979bdSMark Fasheh if (status < 0) 598ccd979bdSMark Fasheh mlog_errno(status); 599ccd979bdSMark Fasheh 600ccd979bdSMark Fasheh out: 601ccd979bdSMark Fasheh mlog_exit(status); 602ccd979bdSMark Fasheh return status; 603ccd979bdSMark Fasheh } 604ccd979bdSMark Fasheh 605ccd979bdSMark Fasheh /* 606ccd979bdSMark Fasheh * If the journal has been kmalloc'd it needs to be freed after this 607ccd979bdSMark Fasheh * call. 608ccd979bdSMark Fasheh */ 609ccd979bdSMark Fasheh void ocfs2_journal_shutdown(struct ocfs2_super *osb) 610ccd979bdSMark Fasheh { 611ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 612ccd979bdSMark Fasheh int status = 0; 613ccd979bdSMark Fasheh struct inode *inode = NULL; 614ccd979bdSMark Fasheh int num_running_trans = 0; 615ccd979bdSMark Fasheh 616ccd979bdSMark Fasheh mlog_entry_void(); 617ccd979bdSMark Fasheh 618ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb); 619ccd979bdSMark Fasheh 620ccd979bdSMark Fasheh journal = osb->journal; 621ccd979bdSMark Fasheh if (!journal) 622ccd979bdSMark Fasheh goto done; 623ccd979bdSMark Fasheh 624ccd979bdSMark Fasheh inode = journal->j_inode; 625ccd979bdSMark Fasheh 626ccd979bdSMark Fasheh if (journal->j_state != OCFS2_JOURNAL_LOADED) 627ccd979bdSMark Fasheh goto done; 628ccd979bdSMark Fasheh 629ccd979bdSMark Fasheh /* need to inc inode use count as journal_destroy will iput. */ 630ccd979bdSMark Fasheh if (!igrab(inode)) 631ccd979bdSMark Fasheh BUG(); 632ccd979bdSMark Fasheh 633ccd979bdSMark Fasheh num_running_trans = atomic_read(&(osb->journal->j_num_trans)); 634ccd979bdSMark Fasheh if (num_running_trans > 0) 635ccd979bdSMark Fasheh mlog(0, "Shutting down journal: must wait on %d " 636ccd979bdSMark Fasheh "running transactions!\n", 637ccd979bdSMark Fasheh num_running_trans); 638ccd979bdSMark Fasheh 639ccd979bdSMark Fasheh /* Do a commit_cache here. It will flush our journal, *and* 640ccd979bdSMark Fasheh * release any locks that are still held. 641ccd979bdSMark Fasheh * set the SHUTDOWN flag and release the trans lock. 642ccd979bdSMark Fasheh * the commit thread will take the trans lock for us below. */ 643ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; 644ccd979bdSMark Fasheh 645ccd979bdSMark Fasheh /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not 646ccd979bdSMark Fasheh * drop the trans_lock (which we want to hold until we 647ccd979bdSMark Fasheh * completely destroy the journal. */ 648ccd979bdSMark Fasheh if (osb->commit_task) { 649ccd979bdSMark Fasheh /* Wait for the commit thread */ 650ccd979bdSMark Fasheh mlog(0, "Waiting for ocfs2commit to exit....\n"); 651ccd979bdSMark Fasheh kthread_stop(osb->commit_task); 652ccd979bdSMark Fasheh osb->commit_task = NULL; 653ccd979bdSMark Fasheh } 654ccd979bdSMark Fasheh 655ccd979bdSMark Fasheh BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); 656ccd979bdSMark Fasheh 657c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 658c271c5c2SSunil Mushran journal_lock_updates(journal->j_journal); 659c271c5c2SSunil Mushran status = journal_flush(journal->j_journal); 660c271c5c2SSunil Mushran journal_unlock_updates(journal->j_journal); 661c271c5c2SSunil Mushran if (status < 0) 662c271c5c2SSunil Mushran mlog_errno(status); 663c271c5c2SSunil Mushran } 664c271c5c2SSunil Mushran 665c271c5c2SSunil Mushran if (status == 0) { 666c271c5c2SSunil Mushran /* 667c271c5c2SSunil Mushran * Do not toggle if flush was unsuccessful otherwise 668c271c5c2SSunil Mushran * will leave dirty metadata in a "clean" journal 669c271c5c2SSunil Mushran */ 670ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(osb, 0); 671ccd979bdSMark Fasheh if (status < 0) 672ccd979bdSMark Fasheh mlog_errno(status); 673c271c5c2SSunil Mushran } 674ccd979bdSMark Fasheh 675ccd979bdSMark Fasheh /* Shutdown the kernel journal system */ 676ccd979bdSMark Fasheh journal_destroy(journal->j_journal); 677ccd979bdSMark Fasheh 678ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 679ccd979bdSMark Fasheh 680ccd979bdSMark Fasheh /* unlock our journal */ 681e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 682ccd979bdSMark Fasheh 683ccd979bdSMark Fasheh brelse(journal->j_bh); 684ccd979bdSMark Fasheh journal->j_bh = NULL; 685ccd979bdSMark Fasheh 686ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 687ccd979bdSMark Fasheh 688ccd979bdSMark Fasheh // up_write(&journal->j_trans_barrier); 689ccd979bdSMark Fasheh done: 690ccd979bdSMark Fasheh if (inode) 691ccd979bdSMark Fasheh iput(inode); 692ccd979bdSMark Fasheh mlog_exit_void(); 693ccd979bdSMark Fasheh } 694ccd979bdSMark Fasheh 695ccd979bdSMark Fasheh static void ocfs2_clear_journal_error(struct super_block *sb, 696ccd979bdSMark Fasheh journal_t *journal, 697ccd979bdSMark Fasheh int slot) 698ccd979bdSMark Fasheh { 699ccd979bdSMark Fasheh int olderr; 700ccd979bdSMark Fasheh 701ccd979bdSMark Fasheh olderr = journal_errno(journal); 702ccd979bdSMark Fasheh if (olderr) { 703ccd979bdSMark Fasheh mlog(ML_ERROR, "File system error %d recorded in " 704ccd979bdSMark Fasheh "journal %u.\n", olderr, slot); 705ccd979bdSMark Fasheh mlog(ML_ERROR, "File system on device %s needs checking.\n", 706ccd979bdSMark Fasheh sb->s_id); 707ccd979bdSMark Fasheh 708ccd979bdSMark Fasheh journal_ack_err(journal); 709ccd979bdSMark Fasheh journal_clear_err(journal); 710ccd979bdSMark Fasheh } 711ccd979bdSMark Fasheh } 712ccd979bdSMark Fasheh 713c271c5c2SSunil Mushran int ocfs2_journal_load(struct ocfs2_journal *journal, int local) 714ccd979bdSMark Fasheh { 715ccd979bdSMark Fasheh int status = 0; 716ccd979bdSMark Fasheh struct ocfs2_super *osb; 717ccd979bdSMark Fasheh 718ccd979bdSMark Fasheh mlog_entry_void(); 719ccd979bdSMark Fasheh 720b1f3550fSJulia Lawall BUG_ON(!journal); 721ccd979bdSMark Fasheh 722ccd979bdSMark Fasheh osb = journal->j_osb; 723ccd979bdSMark Fasheh 724ccd979bdSMark Fasheh status = journal_load(journal->j_journal); 725ccd979bdSMark Fasheh if (status < 0) { 726ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to load journal!\n"); 727ccd979bdSMark Fasheh goto done; 728ccd979bdSMark Fasheh } 729ccd979bdSMark Fasheh 730ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); 731ccd979bdSMark Fasheh 732ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(osb, 1); 733ccd979bdSMark Fasheh if (status < 0) { 734ccd979bdSMark Fasheh mlog_errno(status); 735ccd979bdSMark Fasheh goto done; 736ccd979bdSMark Fasheh } 737ccd979bdSMark Fasheh 738ccd979bdSMark Fasheh /* Launch the commit thread */ 739c271c5c2SSunil Mushran if (!local) { 740c271c5c2SSunil Mushran osb->commit_task = kthread_run(ocfs2_commit_thread, osb, 741c271c5c2SSunil Mushran "ocfs2cmt"); 742ccd979bdSMark Fasheh if (IS_ERR(osb->commit_task)) { 743ccd979bdSMark Fasheh status = PTR_ERR(osb->commit_task); 744ccd979bdSMark Fasheh osb->commit_task = NULL; 745c271c5c2SSunil Mushran mlog(ML_ERROR, "unable to launch ocfs2commit thread, " 746c271c5c2SSunil Mushran "error=%d", status); 747ccd979bdSMark Fasheh goto done; 748ccd979bdSMark Fasheh } 749c271c5c2SSunil Mushran } else 750c271c5c2SSunil Mushran osb->commit_task = NULL; 751ccd979bdSMark Fasheh 752ccd979bdSMark Fasheh done: 753ccd979bdSMark Fasheh mlog_exit(status); 754ccd979bdSMark Fasheh return status; 755ccd979bdSMark Fasheh } 756ccd979bdSMark Fasheh 757ccd979bdSMark Fasheh 758ccd979bdSMark Fasheh /* 'full' flag tells us whether we clear out all blocks or if we just 759ccd979bdSMark Fasheh * mark the journal clean */ 760ccd979bdSMark Fasheh int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) 761ccd979bdSMark Fasheh { 762ccd979bdSMark Fasheh int status; 763ccd979bdSMark Fasheh 764ccd979bdSMark Fasheh mlog_entry_void(); 765ccd979bdSMark Fasheh 766ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!journal); 767ccd979bdSMark Fasheh 768ccd979bdSMark Fasheh status = journal_wipe(journal->j_journal, full); 769ccd979bdSMark Fasheh if (status < 0) { 770ccd979bdSMark Fasheh mlog_errno(status); 771ccd979bdSMark Fasheh goto bail; 772ccd979bdSMark Fasheh } 773ccd979bdSMark Fasheh 774ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(journal->j_osb, 0); 775ccd979bdSMark Fasheh if (status < 0) 776ccd979bdSMark Fasheh mlog_errno(status); 777ccd979bdSMark Fasheh 778ccd979bdSMark Fasheh bail: 779ccd979bdSMark Fasheh mlog_exit(status); 780ccd979bdSMark Fasheh return status; 781ccd979bdSMark Fasheh } 782ccd979bdSMark Fasheh 783553abd04SJoel Becker static int ocfs2_recovery_completed(struct ocfs2_super *osb) 784553abd04SJoel Becker { 785553abd04SJoel Becker int empty; 786553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 787553abd04SJoel Becker 788553abd04SJoel Becker spin_lock(&osb->osb_lock); 789553abd04SJoel Becker empty = (rm->rm_used == 0); 790553abd04SJoel Becker spin_unlock(&osb->osb_lock); 791553abd04SJoel Becker 792553abd04SJoel Becker return empty; 793553abd04SJoel Becker } 794553abd04SJoel Becker 795553abd04SJoel Becker void ocfs2_wait_for_recovery(struct ocfs2_super *osb) 796553abd04SJoel Becker { 797553abd04SJoel Becker wait_event(osb->recovery_event, ocfs2_recovery_completed(osb)); 798553abd04SJoel Becker } 799553abd04SJoel Becker 800ccd979bdSMark Fasheh /* 801ccd979bdSMark Fasheh * JBD Might read a cached version of another nodes journal file. We 802ccd979bdSMark Fasheh * don't want this as this file changes often and we get no 803ccd979bdSMark Fasheh * notification on those changes. The only way to be sure that we've 804ccd979bdSMark Fasheh * got the most up to date version of those blocks then is to force 805ccd979bdSMark Fasheh * read them off disk. Just searching through the buffer cache won't 806ccd979bdSMark Fasheh * work as there may be pages backing this file which are still marked 807ccd979bdSMark Fasheh * up to date. We know things can't change on this file underneath us 808ccd979bdSMark Fasheh * as we have the lock by now :) 809ccd979bdSMark Fasheh */ 810ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode) 811ccd979bdSMark Fasheh { 812ccd979bdSMark Fasheh int status = 0; 8134f902c37SMark Fasheh int i; 8148110b073SMark Fasheh u64 v_blkno, p_blkno, p_blocks, num_blocks; 8154f902c37SMark Fasheh #define CONCURRENT_JOURNAL_FILL 32ULL 816ccd979bdSMark Fasheh struct buffer_head *bhs[CONCURRENT_JOURNAL_FILL]; 817ccd979bdSMark Fasheh 818ccd979bdSMark Fasheh mlog_entry_void(); 819ccd979bdSMark Fasheh 820ccd979bdSMark Fasheh memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL); 821ccd979bdSMark Fasheh 8228110b073SMark Fasheh num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, inode->i_size); 823ccd979bdSMark Fasheh v_blkno = 0; 8248110b073SMark Fasheh while (v_blkno < num_blocks) { 825ccd979bdSMark Fasheh status = ocfs2_extent_map_get_blocks(inode, v_blkno, 82649cb8d2dSMark Fasheh &p_blkno, &p_blocks, NULL); 827ccd979bdSMark Fasheh if (status < 0) { 828ccd979bdSMark Fasheh mlog_errno(status); 829ccd979bdSMark Fasheh goto bail; 830ccd979bdSMark Fasheh } 831ccd979bdSMark Fasheh 832ccd979bdSMark Fasheh if (p_blocks > CONCURRENT_JOURNAL_FILL) 833ccd979bdSMark Fasheh p_blocks = CONCURRENT_JOURNAL_FILL; 834ccd979bdSMark Fasheh 835dd4a2c2bSMark Fasheh /* We are reading journal data which should not 836dd4a2c2bSMark Fasheh * be put in the uptodate cache */ 837ccd979bdSMark Fasheh status = ocfs2_read_blocks(OCFS2_SB(inode->i_sb), 838ccd979bdSMark Fasheh p_blkno, p_blocks, bhs, 0, 839dd4a2c2bSMark Fasheh NULL); 840ccd979bdSMark Fasheh if (status < 0) { 841ccd979bdSMark Fasheh mlog_errno(status); 842ccd979bdSMark Fasheh goto bail; 843ccd979bdSMark Fasheh } 844ccd979bdSMark Fasheh 845ccd979bdSMark Fasheh for(i = 0; i < p_blocks; i++) { 846ccd979bdSMark Fasheh brelse(bhs[i]); 847ccd979bdSMark Fasheh bhs[i] = NULL; 848ccd979bdSMark Fasheh } 849ccd979bdSMark Fasheh 850ccd979bdSMark Fasheh v_blkno += p_blocks; 851ccd979bdSMark Fasheh } 852ccd979bdSMark Fasheh 853ccd979bdSMark Fasheh bail: 854ccd979bdSMark Fasheh for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++) 855ccd979bdSMark Fasheh if (bhs[i]) 856ccd979bdSMark Fasheh brelse(bhs[i]); 857ccd979bdSMark Fasheh mlog_exit(status); 858ccd979bdSMark Fasheh return status; 859ccd979bdSMark Fasheh } 860ccd979bdSMark Fasheh 861ccd979bdSMark Fasheh struct ocfs2_la_recovery_item { 862ccd979bdSMark Fasheh struct list_head lri_list; 863ccd979bdSMark Fasheh int lri_slot; 864ccd979bdSMark Fasheh struct ocfs2_dinode *lri_la_dinode; 865ccd979bdSMark Fasheh struct ocfs2_dinode *lri_tl_dinode; 866ccd979bdSMark Fasheh }; 867ccd979bdSMark Fasheh 868ccd979bdSMark Fasheh /* Does the second half of the recovery process. By this point, the 869ccd979bdSMark Fasheh * node is marked clean and can actually be considered recovered, 870ccd979bdSMark Fasheh * hence it's no longer in the recovery map, but there's still some 871ccd979bdSMark Fasheh * cleanup we can do which shouldn't happen within the recovery thread 872ccd979bdSMark Fasheh * as locking in that context becomes very difficult if we are to take 873ccd979bdSMark Fasheh * recovering nodes into account. 874ccd979bdSMark Fasheh * 875ccd979bdSMark Fasheh * NOTE: This function can and will sleep on recovery of other nodes 876ccd979bdSMark Fasheh * during cluster locking, just like any other ocfs2 process. 877ccd979bdSMark Fasheh */ 878c4028958SDavid Howells void ocfs2_complete_recovery(struct work_struct *work) 879ccd979bdSMark Fasheh { 880ccd979bdSMark Fasheh int ret; 881c4028958SDavid Howells struct ocfs2_journal *journal = 882c4028958SDavid Howells container_of(work, struct ocfs2_journal, j_recovery_work); 883c4028958SDavid Howells struct ocfs2_super *osb = journal->j_osb; 884ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, *tl_dinode; 885800deef3SChristoph Hellwig struct ocfs2_la_recovery_item *item, *n; 886ccd979bdSMark Fasheh LIST_HEAD(tmp_la_list); 887ccd979bdSMark Fasheh 888ccd979bdSMark Fasheh mlog_entry_void(); 889ccd979bdSMark Fasheh 890ccd979bdSMark Fasheh mlog(0, "completing recovery from keventd\n"); 891ccd979bdSMark Fasheh 892ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 893ccd979bdSMark Fasheh list_splice_init(&journal->j_la_cleanups, &tmp_la_list); 894ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 895ccd979bdSMark Fasheh 896800deef3SChristoph Hellwig list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) { 897ccd979bdSMark Fasheh list_del_init(&item->lri_list); 898ccd979bdSMark Fasheh 899ccd979bdSMark Fasheh mlog(0, "Complete recovery for slot %d\n", item->lri_slot); 900ccd979bdSMark Fasheh 901ccd979bdSMark Fasheh la_dinode = item->lri_la_dinode; 902ccd979bdSMark Fasheh if (la_dinode) { 903b0697053SMark Fasheh mlog(0, "Clean up local alloc %llu\n", 9041ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(la_dinode->i_blkno)); 905ccd979bdSMark Fasheh 906ccd979bdSMark Fasheh ret = ocfs2_complete_local_alloc_recovery(osb, 907ccd979bdSMark Fasheh la_dinode); 908ccd979bdSMark Fasheh if (ret < 0) 909ccd979bdSMark Fasheh mlog_errno(ret); 910ccd979bdSMark Fasheh 911ccd979bdSMark Fasheh kfree(la_dinode); 912ccd979bdSMark Fasheh } 913ccd979bdSMark Fasheh 914ccd979bdSMark Fasheh tl_dinode = item->lri_tl_dinode; 915ccd979bdSMark Fasheh if (tl_dinode) { 916b0697053SMark Fasheh mlog(0, "Clean up truncate log %llu\n", 9171ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(tl_dinode->i_blkno)); 918ccd979bdSMark Fasheh 919ccd979bdSMark Fasheh ret = ocfs2_complete_truncate_log_recovery(osb, 920ccd979bdSMark Fasheh tl_dinode); 921ccd979bdSMark Fasheh if (ret < 0) 922ccd979bdSMark Fasheh mlog_errno(ret); 923ccd979bdSMark Fasheh 924ccd979bdSMark Fasheh kfree(tl_dinode); 925ccd979bdSMark Fasheh } 926ccd979bdSMark Fasheh 927ccd979bdSMark Fasheh ret = ocfs2_recover_orphans(osb, item->lri_slot); 928ccd979bdSMark Fasheh if (ret < 0) 929ccd979bdSMark Fasheh mlog_errno(ret); 930ccd979bdSMark Fasheh 931ccd979bdSMark Fasheh kfree(item); 932ccd979bdSMark Fasheh } 933ccd979bdSMark Fasheh 934ccd979bdSMark Fasheh mlog(0, "Recovery completion\n"); 935ccd979bdSMark Fasheh mlog_exit_void(); 936ccd979bdSMark Fasheh } 937ccd979bdSMark Fasheh 938ccd979bdSMark Fasheh /* NOTE: This function always eats your references to la_dinode and 939ccd979bdSMark Fasheh * tl_dinode, either manually on error, or by passing them to 940ccd979bdSMark Fasheh * ocfs2_complete_recovery */ 941ccd979bdSMark Fasheh static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 942ccd979bdSMark Fasheh int slot_num, 943ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, 944ccd979bdSMark Fasheh struct ocfs2_dinode *tl_dinode) 945ccd979bdSMark Fasheh { 946ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 947ccd979bdSMark Fasheh 948afae00abSSunil Mushran item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS); 949ccd979bdSMark Fasheh if (!item) { 950ccd979bdSMark Fasheh /* Though we wish to avoid it, we are in fact safe in 951ccd979bdSMark Fasheh * skipping local alloc cleanup as fsck.ocfs2 is more 952ccd979bdSMark Fasheh * than capable of reclaiming unused space. */ 953ccd979bdSMark Fasheh if (la_dinode) 954ccd979bdSMark Fasheh kfree(la_dinode); 955ccd979bdSMark Fasheh 956ccd979bdSMark Fasheh if (tl_dinode) 957ccd979bdSMark Fasheh kfree(tl_dinode); 958ccd979bdSMark Fasheh 959ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 960ccd979bdSMark Fasheh return; 961ccd979bdSMark Fasheh } 962ccd979bdSMark Fasheh 963ccd979bdSMark Fasheh INIT_LIST_HEAD(&item->lri_list); 964ccd979bdSMark Fasheh item->lri_la_dinode = la_dinode; 965ccd979bdSMark Fasheh item->lri_slot = slot_num; 966ccd979bdSMark Fasheh item->lri_tl_dinode = tl_dinode; 967ccd979bdSMark Fasheh 968ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 969ccd979bdSMark Fasheh list_add_tail(&item->lri_list, &journal->j_la_cleanups); 970ccd979bdSMark Fasheh queue_work(ocfs2_wq, &journal->j_recovery_work); 971ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 972ccd979bdSMark Fasheh } 973ccd979bdSMark Fasheh 974ccd979bdSMark Fasheh /* Called by the mount code to queue recovery the last part of 975ccd979bdSMark Fasheh * recovery for it's own slot. */ 976ccd979bdSMark Fasheh void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) 977ccd979bdSMark Fasheh { 978ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 979ccd979bdSMark Fasheh 980ccd979bdSMark Fasheh if (osb->dirty) { 981ccd979bdSMark Fasheh /* No need to queue up our truncate_log as regular 982ccd979bdSMark Fasheh * cleanup will catch that. */ 983ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(journal, 984ccd979bdSMark Fasheh osb->slot_num, 985ccd979bdSMark Fasheh osb->local_alloc_copy, 986ccd979bdSMark Fasheh NULL); 987ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 988ccd979bdSMark Fasheh 989ccd979bdSMark Fasheh osb->local_alloc_copy = NULL; 990ccd979bdSMark Fasheh osb->dirty = 0; 991ccd979bdSMark Fasheh } 992ccd979bdSMark Fasheh } 993ccd979bdSMark Fasheh 994ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg) 995ccd979bdSMark Fasheh { 996ccd979bdSMark Fasheh int status, node_num; 997ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 998553abd04SJoel Becker struct ocfs2_recovery_map *rm = osb->recovery_map; 999ccd979bdSMark Fasheh 1000ccd979bdSMark Fasheh mlog_entry_void(); 1001ccd979bdSMark Fasheh 1002ccd979bdSMark Fasheh status = ocfs2_wait_on_mount(osb); 1003ccd979bdSMark Fasheh if (status < 0) { 1004ccd979bdSMark Fasheh goto bail; 1005ccd979bdSMark Fasheh } 1006ccd979bdSMark Fasheh 1007ccd979bdSMark Fasheh restart: 1008ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1009ccd979bdSMark Fasheh if (status < 0) { 1010ccd979bdSMark Fasheh mlog_errno(status); 1011ccd979bdSMark Fasheh goto bail; 1012ccd979bdSMark Fasheh } 1013ccd979bdSMark Fasheh 1014553abd04SJoel Becker spin_lock(&osb->osb_lock); 1015553abd04SJoel Becker while (rm->rm_used) { 1016553abd04SJoel Becker /* It's always safe to remove entry zero, as we won't 1017553abd04SJoel Becker * clear it until ocfs2_recover_node() has succeeded. */ 1018553abd04SJoel Becker node_num = rm->rm_entries[0]; 1019553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1020ccd979bdSMark Fasheh 1021ccd979bdSMark Fasheh status = ocfs2_recover_node(osb, node_num); 1022553abd04SJoel Becker if (!status) { 1023553abd04SJoel Becker ocfs2_recovery_map_clear(osb, node_num); 1024553abd04SJoel Becker } else { 1025ccd979bdSMark Fasheh mlog(ML_ERROR, 1026ccd979bdSMark Fasheh "Error %d recovering node %d on device (%u,%u)!\n", 1027ccd979bdSMark Fasheh status, node_num, 1028ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1029ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume requires unmount.\n"); 1030ccd979bdSMark Fasheh } 1031ccd979bdSMark Fasheh 1032553abd04SJoel Becker spin_lock(&osb->osb_lock); 1033ccd979bdSMark Fasheh } 1034553abd04SJoel Becker spin_unlock(&osb->osb_lock); 1035553abd04SJoel Becker mlog(0, "All nodes recovered\n"); 1036553abd04SJoel Becker 1037ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1038ccd979bdSMark Fasheh 1039ccd979bdSMark Fasheh /* We always run recovery on our own orphan dir - the dead 104034d024f8SMark Fasheh * node(s) may have disallowd a previos inode delete. Re-processing 104134d024f8SMark Fasheh * is therefore required. */ 1042ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, 1043ccd979bdSMark Fasheh NULL); 1044ccd979bdSMark Fasheh 1045ccd979bdSMark Fasheh bail: 1046c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1047553abd04SJoel Becker if (!status && !ocfs2_recovery_completed(osb)) { 1048c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1049ccd979bdSMark Fasheh goto restart; 1050ccd979bdSMark Fasheh } 1051ccd979bdSMark Fasheh 1052ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1053ccd979bdSMark Fasheh mb(); /* sync with ocfs2_recovery_thread_running */ 1054ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1055ccd979bdSMark Fasheh 1056c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1057ccd979bdSMark Fasheh 1058ccd979bdSMark Fasheh mlog_exit(status); 1059ccd979bdSMark Fasheh /* no one is callint kthread_stop() for us so the kthread() api 1060ccd979bdSMark Fasheh * requires that we call do_exit(). And it isn't exported, but 1061ccd979bdSMark Fasheh * complete_and_exit() seems to be a minimal wrapper around it. */ 1062ccd979bdSMark Fasheh complete_and_exit(NULL, status); 1063ccd979bdSMark Fasheh return status; 1064ccd979bdSMark Fasheh } 1065ccd979bdSMark Fasheh 1066ccd979bdSMark Fasheh void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) 1067ccd979bdSMark Fasheh { 1068ccd979bdSMark Fasheh mlog_entry("(node_num=%d, osb->node_num = %d)\n", 1069ccd979bdSMark Fasheh node_num, osb->node_num); 1070ccd979bdSMark Fasheh 1071c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 1072ccd979bdSMark Fasheh if (osb->disable_recovery) 1073ccd979bdSMark Fasheh goto out; 1074ccd979bdSMark Fasheh 1075ccd979bdSMark Fasheh /* People waiting on recovery will wait on 1076ccd979bdSMark Fasheh * the recovery map to empty. */ 1077553abd04SJoel Becker if (ocfs2_recovery_map_set(osb, node_num)) 1078553abd04SJoel Becker mlog(0, "node %d already in recovery map.\n", node_num); 1079ccd979bdSMark Fasheh 1080ccd979bdSMark Fasheh mlog(0, "starting recovery thread...\n"); 1081ccd979bdSMark Fasheh 1082ccd979bdSMark Fasheh if (osb->recovery_thread_task) 1083ccd979bdSMark Fasheh goto out; 1084ccd979bdSMark Fasheh 1085ccd979bdSMark Fasheh osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, 108678427043SMark Fasheh "ocfs2rec"); 1087ccd979bdSMark Fasheh if (IS_ERR(osb->recovery_thread_task)) { 1088ccd979bdSMark Fasheh mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); 1089ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1090ccd979bdSMark Fasheh } 1091ccd979bdSMark Fasheh 1092ccd979bdSMark Fasheh out: 1093c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 1094ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1095ccd979bdSMark Fasheh 1096ccd979bdSMark Fasheh mlog_exit_void(); 1097ccd979bdSMark Fasheh } 1098ccd979bdSMark Fasheh 1099ccd979bdSMark Fasheh /* Does the actual journal replay and marks the journal inode as 1100ccd979bdSMark Fasheh * clean. Will only replay if the journal inode is marked dirty. */ 1101ccd979bdSMark Fasheh static int ocfs2_replay_journal(struct ocfs2_super *osb, 1102ccd979bdSMark Fasheh int node_num, 1103ccd979bdSMark Fasheh int slot_num) 1104ccd979bdSMark Fasheh { 1105ccd979bdSMark Fasheh int status; 1106ccd979bdSMark Fasheh int got_lock = 0; 1107ccd979bdSMark Fasheh unsigned int flags; 1108ccd979bdSMark Fasheh struct inode *inode = NULL; 1109ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 1110ccd979bdSMark Fasheh journal_t *journal = NULL; 1111ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1112ccd979bdSMark Fasheh 1113ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1114ccd979bdSMark Fasheh slot_num); 1115ccd979bdSMark Fasheh if (inode == NULL) { 1116ccd979bdSMark Fasheh status = -EACCES; 1117ccd979bdSMark Fasheh mlog_errno(status); 1118ccd979bdSMark Fasheh goto done; 1119ccd979bdSMark Fasheh } 1120ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1121ccd979bdSMark Fasheh status = -EACCES; 1122ccd979bdSMark Fasheh iput(inode); 1123ccd979bdSMark Fasheh inode = NULL; 1124ccd979bdSMark Fasheh mlog_errno(status); 1125ccd979bdSMark Fasheh goto done; 1126ccd979bdSMark Fasheh } 1127ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1128ccd979bdSMark Fasheh 1129e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 1130ccd979bdSMark Fasheh if (status < 0) { 1131e63aecb6SMark Fasheh mlog(0, "status returned from ocfs2_inode_lock=%d\n", status); 1132ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 1133ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not lock journal!\n"); 1134ccd979bdSMark Fasheh goto done; 1135ccd979bdSMark Fasheh } 1136ccd979bdSMark Fasheh got_lock = 1; 1137ccd979bdSMark Fasheh 1138ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *) bh->b_data; 1139ccd979bdSMark Fasheh 1140ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1141ccd979bdSMark Fasheh 1142ccd979bdSMark Fasheh if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { 1143ccd979bdSMark Fasheh mlog(0, "No recovery required for node %d\n", node_num); 1144ccd979bdSMark Fasheh goto done; 1145ccd979bdSMark Fasheh } 1146ccd979bdSMark Fasheh 1147ccd979bdSMark Fasheh mlog(ML_NOTICE, "Recovering node %d from slot %d on device (%u,%u)\n", 1148ccd979bdSMark Fasheh node_num, slot_num, 1149ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1150ccd979bdSMark Fasheh 1151ccd979bdSMark Fasheh OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); 1152ccd979bdSMark Fasheh 1153ccd979bdSMark Fasheh status = ocfs2_force_read_journal(inode); 1154ccd979bdSMark Fasheh if (status < 0) { 1155ccd979bdSMark Fasheh mlog_errno(status); 1156ccd979bdSMark Fasheh goto done; 1157ccd979bdSMark Fasheh } 1158ccd979bdSMark Fasheh 1159ccd979bdSMark Fasheh mlog(0, "calling journal_init_inode\n"); 1160ccd979bdSMark Fasheh journal = journal_init_inode(inode); 1161ccd979bdSMark Fasheh if (journal == NULL) { 1162ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 1163ccd979bdSMark Fasheh status = -EIO; 1164ccd979bdSMark Fasheh goto done; 1165ccd979bdSMark Fasheh } 1166ccd979bdSMark Fasheh 1167ccd979bdSMark Fasheh status = journal_load(journal); 1168ccd979bdSMark Fasheh if (status < 0) { 1169ccd979bdSMark Fasheh mlog_errno(status); 1170ccd979bdSMark Fasheh if (!igrab(inode)) 1171ccd979bdSMark Fasheh BUG(); 1172ccd979bdSMark Fasheh journal_destroy(journal); 1173ccd979bdSMark Fasheh goto done; 1174ccd979bdSMark Fasheh } 1175ccd979bdSMark Fasheh 1176ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal, slot_num); 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh /* wipe the journal */ 1179ccd979bdSMark Fasheh mlog(0, "flushing the journal.\n"); 1180ccd979bdSMark Fasheh journal_lock_updates(journal); 1181ccd979bdSMark Fasheh status = journal_flush(journal); 1182ccd979bdSMark Fasheh journal_unlock_updates(journal); 1183ccd979bdSMark Fasheh if (status < 0) 1184ccd979bdSMark Fasheh mlog_errno(status); 1185ccd979bdSMark Fasheh 1186ccd979bdSMark Fasheh /* This will mark the node clean */ 1187ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1188ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 1189ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 1190ccd979bdSMark Fasheh 1191ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, inode); 1192ccd979bdSMark Fasheh if (status < 0) 1193ccd979bdSMark Fasheh mlog_errno(status); 1194ccd979bdSMark Fasheh 1195ccd979bdSMark Fasheh if (!igrab(inode)) 1196ccd979bdSMark Fasheh BUG(); 1197ccd979bdSMark Fasheh 1198ccd979bdSMark Fasheh journal_destroy(journal); 1199ccd979bdSMark Fasheh 1200ccd979bdSMark Fasheh done: 1201ccd979bdSMark Fasheh /* drop the lock on this nodes journal */ 1202ccd979bdSMark Fasheh if (got_lock) 1203e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1204ccd979bdSMark Fasheh 1205ccd979bdSMark Fasheh if (inode) 1206ccd979bdSMark Fasheh iput(inode); 1207ccd979bdSMark Fasheh 1208ccd979bdSMark Fasheh if (bh) 1209ccd979bdSMark Fasheh brelse(bh); 1210ccd979bdSMark Fasheh 1211ccd979bdSMark Fasheh mlog_exit(status); 1212ccd979bdSMark Fasheh return status; 1213ccd979bdSMark Fasheh } 1214ccd979bdSMark Fasheh 1215ccd979bdSMark Fasheh /* 1216ccd979bdSMark Fasheh * Do the most important parts of node recovery: 1217ccd979bdSMark Fasheh * - Replay it's journal 1218ccd979bdSMark Fasheh * - Stamp a clean local allocator file 1219ccd979bdSMark Fasheh * - Stamp a clean truncate log 1220ccd979bdSMark Fasheh * - Mark the node clean 1221ccd979bdSMark Fasheh * 1222ccd979bdSMark Fasheh * If this function completes without error, a node in OCFS2 can be 1223ccd979bdSMark Fasheh * said to have been safely recovered. As a result, failure during the 1224ccd979bdSMark Fasheh * second part of a nodes recovery process (local alloc recovery) is 1225ccd979bdSMark Fasheh * far less concerning. 1226ccd979bdSMark Fasheh */ 1227ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 1228ccd979bdSMark Fasheh int node_num) 1229ccd979bdSMark Fasheh { 1230ccd979bdSMark Fasheh int status = 0; 1231ccd979bdSMark Fasheh int slot_num; 1232ccd979bdSMark Fasheh struct ocfs2_dinode *la_copy = NULL; 1233ccd979bdSMark Fasheh struct ocfs2_dinode *tl_copy = NULL; 1234ccd979bdSMark Fasheh 1235ccd979bdSMark Fasheh mlog_entry("(node_num=%d, osb->node_num = %d)\n", 1236ccd979bdSMark Fasheh node_num, osb->node_num); 1237ccd979bdSMark Fasheh 1238ccd979bdSMark Fasheh mlog(0, "checking node %d\n", node_num); 1239ccd979bdSMark Fasheh 1240ccd979bdSMark Fasheh /* Should not ever be called to recover ourselves -- in that 1241ccd979bdSMark Fasheh * case we should've called ocfs2_journal_load instead. */ 1242ebdec83bSEric Sesterhenn / snakebyte BUG_ON(osb->node_num == node_num); 1243ccd979bdSMark Fasheh 1244d85b20e4SJoel Becker slot_num = ocfs2_node_num_to_slot(osb, node_num); 1245d85b20e4SJoel Becker if (slot_num == -ENOENT) { 1246ccd979bdSMark Fasheh status = 0; 1247ccd979bdSMark Fasheh mlog(0, "no slot for this node, so no recovery required.\n"); 1248ccd979bdSMark Fasheh goto done; 1249ccd979bdSMark Fasheh } 1250ccd979bdSMark Fasheh 1251ccd979bdSMark Fasheh mlog(0, "node %d was using slot %d\n", node_num, slot_num); 1252ccd979bdSMark Fasheh 1253ccd979bdSMark Fasheh status = ocfs2_replay_journal(osb, node_num, slot_num); 1254ccd979bdSMark Fasheh if (status < 0) { 1255ccd979bdSMark Fasheh mlog_errno(status); 1256ccd979bdSMark Fasheh goto done; 1257ccd979bdSMark Fasheh } 1258ccd979bdSMark Fasheh 1259ccd979bdSMark Fasheh /* Stamp a clean local alloc file AFTER recovering the journal... */ 1260ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); 1261ccd979bdSMark Fasheh if (status < 0) { 1262ccd979bdSMark Fasheh mlog_errno(status); 1263ccd979bdSMark Fasheh goto done; 1264ccd979bdSMark Fasheh } 1265ccd979bdSMark Fasheh 1266ccd979bdSMark Fasheh /* An error from begin_truncate_log_recovery is not 1267ccd979bdSMark Fasheh * serious enough to warrant halting the rest of 1268ccd979bdSMark Fasheh * recovery. */ 1269ccd979bdSMark Fasheh status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); 1270ccd979bdSMark Fasheh if (status < 0) 1271ccd979bdSMark Fasheh mlog_errno(status); 1272ccd979bdSMark Fasheh 1273ccd979bdSMark Fasheh /* Likewise, this would be a strange but ultimately not so 1274ccd979bdSMark Fasheh * harmful place to get an error... */ 12758e8a4603SMark Fasheh status = ocfs2_clear_slot(osb, slot_num); 1276ccd979bdSMark Fasheh if (status < 0) 1277ccd979bdSMark Fasheh mlog_errno(status); 1278ccd979bdSMark Fasheh 1279ccd979bdSMark Fasheh /* This will kfree the memory pointed to by la_copy and tl_copy */ 1280ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, 1281ccd979bdSMark Fasheh tl_copy); 1282ccd979bdSMark Fasheh 1283ccd979bdSMark Fasheh status = 0; 1284ccd979bdSMark Fasheh done: 1285ccd979bdSMark Fasheh 1286ccd979bdSMark Fasheh mlog_exit(status); 1287ccd979bdSMark Fasheh return status; 1288ccd979bdSMark Fasheh } 1289ccd979bdSMark Fasheh 1290ccd979bdSMark Fasheh /* Test node liveness by trylocking his journal. If we get the lock, 1291ccd979bdSMark Fasheh * we drop it here. Return 0 if we got the lock, -EAGAIN if node is 1292ccd979bdSMark Fasheh * still alive (we couldn't get the lock) and < 0 on error. */ 1293ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 1294ccd979bdSMark Fasheh int slot_num) 1295ccd979bdSMark Fasheh { 1296ccd979bdSMark Fasheh int status, flags; 1297ccd979bdSMark Fasheh struct inode *inode = NULL; 1298ccd979bdSMark Fasheh 1299ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1300ccd979bdSMark Fasheh slot_num); 1301ccd979bdSMark Fasheh if (inode == NULL) { 1302ccd979bdSMark Fasheh mlog(ML_ERROR, "access error\n"); 1303ccd979bdSMark Fasheh status = -EACCES; 1304ccd979bdSMark Fasheh goto bail; 1305ccd979bdSMark Fasheh } 1306ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1307ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 1308ccd979bdSMark Fasheh iput(inode); 1309ccd979bdSMark Fasheh inode = NULL; 1310ccd979bdSMark Fasheh status = -EACCES; 1311ccd979bdSMark Fasheh goto bail; 1312ccd979bdSMark Fasheh } 1313ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1314ccd979bdSMark Fasheh 1315ccd979bdSMark Fasheh flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; 1316e63aecb6SMark Fasheh status = ocfs2_inode_lock_full(inode, NULL, 1, flags); 1317ccd979bdSMark Fasheh if (status < 0) { 1318ccd979bdSMark Fasheh if (status != -EAGAIN) 1319ccd979bdSMark Fasheh mlog_errno(status); 1320ccd979bdSMark Fasheh goto bail; 1321ccd979bdSMark Fasheh } 1322ccd979bdSMark Fasheh 1323e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 1); 1324ccd979bdSMark Fasheh bail: 1325ccd979bdSMark Fasheh if (inode) 1326ccd979bdSMark Fasheh iput(inode); 1327ccd979bdSMark Fasheh 1328ccd979bdSMark Fasheh return status; 1329ccd979bdSMark Fasheh } 1330ccd979bdSMark Fasheh 1331ccd979bdSMark Fasheh /* Call this underneath ocfs2_super_lock. It also assumes that the 1332ccd979bdSMark Fasheh * slot info struct has been updated from disk. */ 1333ccd979bdSMark Fasheh int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) 1334ccd979bdSMark Fasheh { 1335d85b20e4SJoel Becker unsigned int node_num; 1336d85b20e4SJoel Becker int status, i; 1337ccd979bdSMark Fasheh 1338ccd979bdSMark Fasheh /* This is called with the super block cluster lock, so we 1339ccd979bdSMark Fasheh * know that the slot map can't change underneath us. */ 1340ccd979bdSMark Fasheh 1341d85b20e4SJoel Becker spin_lock(&osb->osb_lock); 1342d85b20e4SJoel Becker for (i = 0; i < osb->max_slots; i++) { 1343ccd979bdSMark Fasheh if (i == osb->slot_num) 1344ccd979bdSMark Fasheh continue; 1345d85b20e4SJoel Becker 1346d85b20e4SJoel Becker status = ocfs2_slot_to_node_num_locked(osb, i, &node_num); 1347d85b20e4SJoel Becker if (status == -ENOENT) 1348ccd979bdSMark Fasheh continue; 1349ccd979bdSMark Fasheh 1350553abd04SJoel Becker if (__ocfs2_recovery_map_test(osb, node_num)) 1351ccd979bdSMark Fasheh continue; 1352d85b20e4SJoel Becker spin_unlock(&osb->osb_lock); 1353ccd979bdSMark Fasheh 1354ccd979bdSMark Fasheh /* Ok, we have a slot occupied by another node which 1355ccd979bdSMark Fasheh * is not in the recovery map. We trylock his journal 1356ccd979bdSMark Fasheh * file here to test if he's alive. */ 1357ccd979bdSMark Fasheh status = ocfs2_trylock_journal(osb, i); 1358ccd979bdSMark Fasheh if (!status) { 1359ccd979bdSMark Fasheh /* Since we're called from mount, we know that 1360ccd979bdSMark Fasheh * the recovery thread can't race us on 1361ccd979bdSMark Fasheh * setting / checking the recovery bits. */ 1362ccd979bdSMark Fasheh ocfs2_recovery_thread(osb, node_num); 1363ccd979bdSMark Fasheh } else if ((status < 0) && (status != -EAGAIN)) { 1364ccd979bdSMark Fasheh mlog_errno(status); 1365ccd979bdSMark Fasheh goto bail; 1366ccd979bdSMark Fasheh } 1367ccd979bdSMark Fasheh 1368d85b20e4SJoel Becker spin_lock(&osb->osb_lock); 1369ccd979bdSMark Fasheh } 1370d85b20e4SJoel Becker spin_unlock(&osb->osb_lock); 1371ccd979bdSMark Fasheh 1372ccd979bdSMark Fasheh status = 0; 1373ccd979bdSMark Fasheh bail: 1374ccd979bdSMark Fasheh mlog_exit(status); 1375ccd979bdSMark Fasheh return status; 1376ccd979bdSMark Fasheh } 1377ccd979bdSMark Fasheh 13785eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv { 13795eae5b96SMark Fasheh struct inode *head; 13805eae5b96SMark Fasheh struct ocfs2_super *osb; 13815eae5b96SMark Fasheh }; 13825eae5b96SMark Fasheh 13835eae5b96SMark Fasheh static int ocfs2_orphan_filldir(void *priv, const char *name, int name_len, 13845eae5b96SMark Fasheh loff_t pos, u64 ino, unsigned type) 13855eae5b96SMark Fasheh { 13865eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv *p = priv; 13875eae5b96SMark Fasheh struct inode *iter; 13885eae5b96SMark Fasheh 13895eae5b96SMark Fasheh if (name_len == 1 && !strncmp(".", name, 1)) 13905eae5b96SMark Fasheh return 0; 13915eae5b96SMark Fasheh if (name_len == 2 && !strncmp("..", name, 2)) 13925eae5b96SMark Fasheh return 0; 13935eae5b96SMark Fasheh 13945eae5b96SMark Fasheh /* Skip bad inodes so that recovery can continue */ 13955eae5b96SMark Fasheh iter = ocfs2_iget(p->osb, ino, 13965fa0613eSJan Kara OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0); 13975eae5b96SMark Fasheh if (IS_ERR(iter)) 13985eae5b96SMark Fasheh return 0; 13995eae5b96SMark Fasheh 14005eae5b96SMark Fasheh mlog(0, "queue orphan %llu\n", 14015eae5b96SMark Fasheh (unsigned long long)OCFS2_I(iter)->ip_blkno); 14025eae5b96SMark Fasheh /* No locking is required for the next_orphan queue as there 14035eae5b96SMark Fasheh * is only ever a single process doing orphan recovery. */ 14045eae5b96SMark Fasheh OCFS2_I(iter)->ip_next_orphan = p->head; 14055eae5b96SMark Fasheh p->head = iter; 14065eae5b96SMark Fasheh 14075eae5b96SMark Fasheh return 0; 14085eae5b96SMark Fasheh } 14095eae5b96SMark Fasheh 1410b4df6ed8SMark Fasheh static int ocfs2_queue_orphans(struct ocfs2_super *osb, 1411b4df6ed8SMark Fasheh int slot, 1412b4df6ed8SMark Fasheh struct inode **head) 1413ccd979bdSMark Fasheh { 1414b4df6ed8SMark Fasheh int status; 1415ccd979bdSMark Fasheh struct inode *orphan_dir_inode = NULL; 14165eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv priv; 14175eae5b96SMark Fasheh loff_t pos = 0; 14185eae5b96SMark Fasheh 14195eae5b96SMark Fasheh priv.osb = osb; 14205eae5b96SMark Fasheh priv.head = *head; 1421ccd979bdSMark Fasheh 1422ccd979bdSMark Fasheh orphan_dir_inode = ocfs2_get_system_file_inode(osb, 1423ccd979bdSMark Fasheh ORPHAN_DIR_SYSTEM_INODE, 1424ccd979bdSMark Fasheh slot); 1425ccd979bdSMark Fasheh if (!orphan_dir_inode) { 1426ccd979bdSMark Fasheh status = -ENOENT; 1427ccd979bdSMark Fasheh mlog_errno(status); 1428b4df6ed8SMark Fasheh return status; 1429ccd979bdSMark Fasheh } 1430ccd979bdSMark Fasheh 14311b1dcc1bSJes Sorensen mutex_lock(&orphan_dir_inode->i_mutex); 1432e63aecb6SMark Fasheh status = ocfs2_inode_lock(orphan_dir_inode, NULL, 0); 1433ccd979bdSMark Fasheh if (status < 0) { 1434ccd979bdSMark Fasheh mlog_errno(status); 1435ccd979bdSMark Fasheh goto out; 1436ccd979bdSMark Fasheh } 1437ccd979bdSMark Fasheh 14385eae5b96SMark Fasheh status = ocfs2_dir_foreach(orphan_dir_inode, &pos, &priv, 14395eae5b96SMark Fasheh ocfs2_orphan_filldir); 14405eae5b96SMark Fasheh if (status) { 1441ccd979bdSMark Fasheh mlog_errno(status); 1442a86370fbSMark Fasheh goto out_cluster; 1443ccd979bdSMark Fasheh } 1444ccd979bdSMark Fasheh 14455eae5b96SMark Fasheh *head = priv.head; 1446ccd979bdSMark Fasheh 1447a86370fbSMark Fasheh out_cluster: 1448e63aecb6SMark Fasheh ocfs2_inode_unlock(orphan_dir_inode, 0); 1449b4df6ed8SMark Fasheh out: 1450b4df6ed8SMark Fasheh mutex_unlock(&orphan_dir_inode->i_mutex); 1451ccd979bdSMark Fasheh iput(orphan_dir_inode); 1452b4df6ed8SMark Fasheh return status; 1453b4df6ed8SMark Fasheh } 1454b4df6ed8SMark Fasheh 1455b4df6ed8SMark Fasheh static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb, 1456b4df6ed8SMark Fasheh int slot) 1457b4df6ed8SMark Fasheh { 1458b4df6ed8SMark Fasheh int ret; 1459b4df6ed8SMark Fasheh 1460b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1461b4df6ed8SMark Fasheh ret = !osb->osb_orphan_wipes[slot]; 1462b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1463b4df6ed8SMark Fasheh return ret; 1464b4df6ed8SMark Fasheh } 1465b4df6ed8SMark Fasheh 1466b4df6ed8SMark Fasheh static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb, 1467b4df6ed8SMark Fasheh int slot) 1468b4df6ed8SMark Fasheh { 1469b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1470b4df6ed8SMark Fasheh /* Mark ourselves such that new processes in delete_inode() 1471b4df6ed8SMark Fasheh * know to quit early. */ 1472b4df6ed8SMark Fasheh ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 1473b4df6ed8SMark Fasheh while (osb->osb_orphan_wipes[slot]) { 1474b4df6ed8SMark Fasheh /* If any processes are already in the middle of an 1475b4df6ed8SMark Fasheh * orphan wipe on this dir, then we need to wait for 1476b4df6ed8SMark Fasheh * them. */ 1477b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1478b4df6ed8SMark Fasheh wait_event_interruptible(osb->osb_wipe_event, 1479b4df6ed8SMark Fasheh ocfs2_orphan_recovery_can_continue(osb, slot)); 1480b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1481b4df6ed8SMark Fasheh } 1482b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1483b4df6ed8SMark Fasheh } 1484b4df6ed8SMark Fasheh 1485b4df6ed8SMark Fasheh static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb, 1486b4df6ed8SMark Fasheh int slot) 1487b4df6ed8SMark Fasheh { 1488b4df6ed8SMark Fasheh ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 1489b4df6ed8SMark Fasheh } 1490b4df6ed8SMark Fasheh 1491b4df6ed8SMark Fasheh /* 1492b4df6ed8SMark Fasheh * Orphan recovery. Each mounted node has it's own orphan dir which we 1493b4df6ed8SMark Fasheh * must run during recovery. Our strategy here is to build a list of 1494b4df6ed8SMark Fasheh * the inodes in the orphan dir and iget/iput them. The VFS does 1495b4df6ed8SMark Fasheh * (most) of the rest of the work. 1496b4df6ed8SMark Fasheh * 1497b4df6ed8SMark Fasheh * Orphan recovery can happen at any time, not just mount so we have a 1498b4df6ed8SMark Fasheh * couple of extra considerations. 1499b4df6ed8SMark Fasheh * 1500b4df6ed8SMark Fasheh * - We grab as many inodes as we can under the orphan dir lock - 1501b4df6ed8SMark Fasheh * doing iget() outside the orphan dir risks getting a reference on 1502b4df6ed8SMark Fasheh * an invalid inode. 1503b4df6ed8SMark Fasheh * - We must be sure not to deadlock with other processes on the 1504b4df6ed8SMark Fasheh * system wanting to run delete_inode(). This can happen when they go 1505b4df6ed8SMark Fasheh * to lock the orphan dir and the orphan recovery process attempts to 1506b4df6ed8SMark Fasheh * iget() inside the orphan dir lock. This can be avoided by 1507b4df6ed8SMark Fasheh * advertising our state to ocfs2_delete_inode(). 1508b4df6ed8SMark Fasheh */ 1509b4df6ed8SMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 1510b4df6ed8SMark Fasheh int slot) 1511b4df6ed8SMark Fasheh { 1512b4df6ed8SMark Fasheh int ret = 0; 1513b4df6ed8SMark Fasheh struct inode *inode = NULL; 1514b4df6ed8SMark Fasheh struct inode *iter; 1515b4df6ed8SMark Fasheh struct ocfs2_inode_info *oi; 1516b4df6ed8SMark Fasheh 1517b4df6ed8SMark Fasheh mlog(0, "Recover inodes from orphan dir in slot %d\n", slot); 1518b4df6ed8SMark Fasheh 1519b4df6ed8SMark Fasheh ocfs2_mark_recovering_orphan_dir(osb, slot); 1520b4df6ed8SMark Fasheh ret = ocfs2_queue_orphans(osb, slot, &inode); 1521b4df6ed8SMark Fasheh ocfs2_clear_recovering_orphan_dir(osb, slot); 1522b4df6ed8SMark Fasheh 1523b4df6ed8SMark Fasheh /* Error here should be noted, but we want to continue with as 1524b4df6ed8SMark Fasheh * many queued inodes as we've got. */ 1525b4df6ed8SMark Fasheh if (ret) 1526b4df6ed8SMark Fasheh mlog_errno(ret); 1527ccd979bdSMark Fasheh 1528ccd979bdSMark Fasheh while (inode) { 1529ccd979bdSMark Fasheh oi = OCFS2_I(inode); 1530b0697053SMark Fasheh mlog(0, "iput orphan %llu\n", (unsigned long long)oi->ip_blkno); 1531ccd979bdSMark Fasheh 1532ccd979bdSMark Fasheh iter = oi->ip_next_orphan; 1533ccd979bdSMark Fasheh 1534ccd979bdSMark Fasheh spin_lock(&oi->ip_lock); 153534d024f8SMark Fasheh /* The remote delete code may have set these on the 153634d024f8SMark Fasheh * assumption that the other node would wipe them 153734d024f8SMark Fasheh * successfully. If they are still in the node's 153834d024f8SMark Fasheh * orphan dir, we need to reset that state. */ 1539ccd979bdSMark Fasheh oi->ip_flags &= ~(OCFS2_INODE_DELETED|OCFS2_INODE_SKIP_DELETE); 1540ccd979bdSMark Fasheh 1541ccd979bdSMark Fasheh /* Set the proper information to get us going into 1542ccd979bdSMark Fasheh * ocfs2_delete_inode. */ 1543ccd979bdSMark Fasheh oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; 1544ccd979bdSMark Fasheh spin_unlock(&oi->ip_lock); 1545ccd979bdSMark Fasheh 1546ccd979bdSMark Fasheh iput(inode); 1547ccd979bdSMark Fasheh 1548ccd979bdSMark Fasheh inode = iter; 1549ccd979bdSMark Fasheh } 1550ccd979bdSMark Fasheh 1551b4df6ed8SMark Fasheh return ret; 1552ccd979bdSMark Fasheh } 1553ccd979bdSMark Fasheh 1554ccd979bdSMark Fasheh static int ocfs2_wait_on_mount(struct ocfs2_super *osb) 1555ccd979bdSMark Fasheh { 1556ccd979bdSMark Fasheh /* This check is good because ocfs2 will wait on our recovery 1557ccd979bdSMark Fasheh * thread before changing it to something other than MOUNTED 1558ccd979bdSMark Fasheh * or DISABLED. */ 1559ccd979bdSMark Fasheh wait_event(osb->osb_mount_event, 1560ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_MOUNTED || 1561ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_DISABLED); 1562ccd979bdSMark Fasheh 1563ccd979bdSMark Fasheh /* If there's an error on mount, then we may never get to the 1564ccd979bdSMark Fasheh * MOUNTED flag, but this is set right before 1565ccd979bdSMark Fasheh * dismount_volume() so we can trust it. */ 1566ccd979bdSMark Fasheh if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) { 1567ccd979bdSMark Fasheh mlog(0, "mount error, exiting!\n"); 1568ccd979bdSMark Fasheh return -EBUSY; 1569ccd979bdSMark Fasheh } 1570ccd979bdSMark Fasheh 1571ccd979bdSMark Fasheh return 0; 1572ccd979bdSMark Fasheh } 1573ccd979bdSMark Fasheh 1574ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg) 1575ccd979bdSMark Fasheh { 1576ccd979bdSMark Fasheh int status; 1577ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 1578ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 1579ccd979bdSMark Fasheh 1580ccd979bdSMark Fasheh /* we can trust j_num_trans here because _should_stop() is only set in 1581ccd979bdSMark Fasheh * shutdown and nobody other than ourselves should be able to start 1582ccd979bdSMark Fasheh * transactions. committing on shutdown might take a few iterations 1583ccd979bdSMark Fasheh * as final transactions put deleted inodes on the list */ 1584ccd979bdSMark Fasheh while (!(kthread_should_stop() && 1585ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) == 0)) { 1586ccd979bdSMark Fasheh 1587745ae8baSMark Fasheh wait_event_interruptible(osb->checkpoint_event, 1588ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) 1589745ae8baSMark Fasheh || kthread_should_stop()); 1590ccd979bdSMark Fasheh 1591ccd979bdSMark Fasheh status = ocfs2_commit_cache(osb); 1592ccd979bdSMark Fasheh if (status < 0) 1593ccd979bdSMark Fasheh mlog_errno(status); 1594ccd979bdSMark Fasheh 1595ccd979bdSMark Fasheh if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ 1596ccd979bdSMark Fasheh mlog(ML_KTHREAD, 1597ccd979bdSMark Fasheh "commit_thread: %u transactions pending on " 1598ccd979bdSMark Fasheh "shutdown\n", 1599ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans)); 1600ccd979bdSMark Fasheh } 1601ccd979bdSMark Fasheh } 1602ccd979bdSMark Fasheh 1603ccd979bdSMark Fasheh return 0; 1604ccd979bdSMark Fasheh } 1605ccd979bdSMark Fasheh 1606ccd979bdSMark Fasheh /* Look for a dirty journal without taking any cluster locks. Used for 1607ccd979bdSMark Fasheh * hard readonly access to determine whether the file system journals 1608ccd979bdSMark Fasheh * require recovery. */ 1609ccd979bdSMark Fasheh int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) 1610ccd979bdSMark Fasheh { 1611ccd979bdSMark Fasheh int ret = 0; 1612ccd979bdSMark Fasheh unsigned int slot; 1613ccd979bdSMark Fasheh struct buffer_head *di_bh; 1614ccd979bdSMark Fasheh struct ocfs2_dinode *di; 1615ccd979bdSMark Fasheh struct inode *journal = NULL; 1616ccd979bdSMark Fasheh 1617ccd979bdSMark Fasheh for(slot = 0; slot < osb->max_slots; slot++) { 1618ccd979bdSMark Fasheh journal = ocfs2_get_system_file_inode(osb, 1619ccd979bdSMark Fasheh JOURNAL_SYSTEM_INODE, 1620ccd979bdSMark Fasheh slot); 1621ccd979bdSMark Fasheh if (!journal || is_bad_inode(journal)) { 1622ccd979bdSMark Fasheh ret = -EACCES; 1623ccd979bdSMark Fasheh mlog_errno(ret); 1624ccd979bdSMark Fasheh goto out; 1625ccd979bdSMark Fasheh } 1626ccd979bdSMark Fasheh 1627ccd979bdSMark Fasheh di_bh = NULL; 1628ccd979bdSMark Fasheh ret = ocfs2_read_block(osb, OCFS2_I(journal)->ip_blkno, &di_bh, 1629ccd979bdSMark Fasheh 0, journal); 1630ccd979bdSMark Fasheh if (ret < 0) { 1631ccd979bdSMark Fasheh mlog_errno(ret); 1632ccd979bdSMark Fasheh goto out; 1633ccd979bdSMark Fasheh } 1634ccd979bdSMark Fasheh 1635ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) di_bh->b_data; 1636ccd979bdSMark Fasheh 1637ccd979bdSMark Fasheh if (le32_to_cpu(di->id1.journal1.ij_flags) & 1638ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL) 1639ccd979bdSMark Fasheh ret = -EROFS; 1640ccd979bdSMark Fasheh 1641ccd979bdSMark Fasheh brelse(di_bh); 1642ccd979bdSMark Fasheh if (ret) 1643ccd979bdSMark Fasheh break; 1644ccd979bdSMark Fasheh } 1645ccd979bdSMark Fasheh 1646ccd979bdSMark Fasheh out: 1647ccd979bdSMark Fasheh if (journal) 1648ccd979bdSMark Fasheh iput(journal); 1649ccd979bdSMark Fasheh 1650ccd979bdSMark Fasheh return ret; 1651ccd979bdSMark Fasheh } 1652