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" 38ccd979bdSMark Fasheh #include "dlmglue.h" 39ccd979bdSMark Fasheh #include "extent_map.h" 40ccd979bdSMark Fasheh #include "heartbeat.h" 41ccd979bdSMark Fasheh #include "inode.h" 42ccd979bdSMark Fasheh #include "journal.h" 43ccd979bdSMark Fasheh #include "localalloc.h" 44ccd979bdSMark Fasheh #include "namei.h" 45ccd979bdSMark Fasheh #include "slot_map.h" 46ccd979bdSMark Fasheh #include "super.h" 47ccd979bdSMark Fasheh #include "vote.h" 48ccd979bdSMark Fasheh #include "sysfile.h" 49ccd979bdSMark Fasheh 50ccd979bdSMark Fasheh #include "buffer_head_io.h" 51ccd979bdSMark Fasheh 52ccd979bdSMark Fasheh spinlock_t trans_inc_lock = SPIN_LOCK_UNLOCKED; 53ccd979bdSMark Fasheh 54ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode); 55ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 56ccd979bdSMark Fasheh int node_num); 57ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg); 58ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb); 59ccd979bdSMark Fasheh static int ocfs2_wait_on_mount(struct ocfs2_super *osb); 60ccd979bdSMark Fasheh static void ocfs2_handle_cleanup_locks(struct ocfs2_journal *journal, 61ccd979bdSMark Fasheh struct ocfs2_journal_handle *handle); 62ccd979bdSMark Fasheh static void ocfs2_commit_unstarted_handle(struct ocfs2_journal_handle *handle); 63ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 64ccd979bdSMark Fasheh int dirty); 65ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 66ccd979bdSMark Fasheh int slot_num); 67ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 68ccd979bdSMark Fasheh int slot); 69ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg); 70ccd979bdSMark Fasheh 71ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb) 72ccd979bdSMark Fasheh { 73ccd979bdSMark Fasheh int status = 0; 74ccd979bdSMark Fasheh unsigned int flushed; 75ccd979bdSMark Fasheh unsigned long old_id; 76ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 77ccd979bdSMark Fasheh 78ccd979bdSMark Fasheh mlog_entry_void(); 79ccd979bdSMark Fasheh 80ccd979bdSMark Fasheh journal = osb->journal; 81ccd979bdSMark Fasheh 82ccd979bdSMark Fasheh /* Flush all pending commits and checkpoint the journal. */ 83ccd979bdSMark Fasheh down_write(&journal->j_trans_barrier); 84ccd979bdSMark Fasheh 85ccd979bdSMark Fasheh if (atomic_read(&journal->j_num_trans) == 0) { 86ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 87ccd979bdSMark Fasheh mlog(0, "No transactions for me to flush!\n"); 88ccd979bdSMark Fasheh goto finally; 89ccd979bdSMark Fasheh } 90ccd979bdSMark Fasheh 91ccd979bdSMark Fasheh journal_lock_updates(journal->j_journal); 92ccd979bdSMark Fasheh status = journal_flush(journal->j_journal); 93ccd979bdSMark Fasheh journal_unlock_updates(journal->j_journal); 94ccd979bdSMark Fasheh if (status < 0) { 95ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 96ccd979bdSMark Fasheh mlog_errno(status); 97ccd979bdSMark Fasheh goto finally; 98ccd979bdSMark Fasheh } 99ccd979bdSMark Fasheh 100ccd979bdSMark Fasheh old_id = ocfs2_inc_trans_id(journal); 101ccd979bdSMark Fasheh 102ccd979bdSMark Fasheh flushed = atomic_read(&journal->j_num_trans); 103ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 104ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 105ccd979bdSMark Fasheh 106ccd979bdSMark Fasheh mlog(0, "commit_thread: flushed transaction %lu (%u handles)\n", 107ccd979bdSMark Fasheh journal->j_trans_id, flushed); 108ccd979bdSMark Fasheh 109ccd979bdSMark Fasheh ocfs2_kick_vote_thread(osb); 110ccd979bdSMark Fasheh wake_up(&journal->j_checkpointed); 111ccd979bdSMark Fasheh finally: 112ccd979bdSMark Fasheh mlog_exit(status); 113ccd979bdSMark Fasheh return status; 114ccd979bdSMark Fasheh } 115ccd979bdSMark Fasheh 116ccd979bdSMark Fasheh struct ocfs2_journal_handle *ocfs2_alloc_handle(struct ocfs2_super *osb) 117ccd979bdSMark Fasheh { 118ccd979bdSMark Fasheh struct ocfs2_journal_handle *retval = NULL; 119ccd979bdSMark Fasheh 120ccd979bdSMark Fasheh retval = kcalloc(1, sizeof(*retval), GFP_KERNEL); 121ccd979bdSMark Fasheh if (!retval) { 122ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to allocate memory for journal " 123ccd979bdSMark Fasheh "handle!\n"); 124ccd979bdSMark Fasheh return NULL; 125ccd979bdSMark Fasheh } 126ccd979bdSMark Fasheh 127ccd979bdSMark Fasheh retval->max_buffs = 0; 128ccd979bdSMark Fasheh retval->num_locks = 0; 129ccd979bdSMark Fasheh retval->k_handle = NULL; 130ccd979bdSMark Fasheh 131ccd979bdSMark Fasheh INIT_LIST_HEAD(&retval->locks); 132ccd979bdSMark Fasheh INIT_LIST_HEAD(&retval->inode_list); 133ccd979bdSMark Fasheh retval->journal = osb->journal; 134ccd979bdSMark Fasheh 135ccd979bdSMark Fasheh return retval; 136ccd979bdSMark Fasheh } 137ccd979bdSMark Fasheh 138ccd979bdSMark Fasheh /* pass it NULL and it will allocate a new handle object for you. If 139ccd979bdSMark Fasheh * you pass it a handle however, it may still return error, in which 140ccd979bdSMark Fasheh * case it has free'd the passed handle for you. */ 141ccd979bdSMark Fasheh struct ocfs2_journal_handle *ocfs2_start_trans(struct ocfs2_super *osb, 142ccd979bdSMark Fasheh struct ocfs2_journal_handle *handle, 143ccd979bdSMark Fasheh int max_buffs) 144ccd979bdSMark Fasheh { 145ccd979bdSMark Fasheh int ret; 146ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 147ccd979bdSMark Fasheh 148ccd979bdSMark Fasheh mlog_entry("(max_buffs = %d)\n", max_buffs); 149ccd979bdSMark Fasheh 150ccd979bdSMark Fasheh if (!osb || !osb->journal->j_journal) 151ccd979bdSMark Fasheh BUG(); 152ccd979bdSMark Fasheh 153ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) { 154ccd979bdSMark Fasheh ret = -EROFS; 155ccd979bdSMark Fasheh goto done_free; 156ccd979bdSMark Fasheh } 157ccd979bdSMark Fasheh 158ccd979bdSMark Fasheh BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); 159ccd979bdSMark Fasheh BUG_ON(max_buffs <= 0); 160ccd979bdSMark Fasheh 161ccd979bdSMark Fasheh /* JBD might support this, but our journalling code doesn't yet. */ 162ccd979bdSMark Fasheh if (journal_current_handle()) { 163ccd979bdSMark Fasheh mlog(ML_ERROR, "Recursive transaction attempted!\n"); 164ccd979bdSMark Fasheh BUG(); 165ccd979bdSMark Fasheh } 166ccd979bdSMark Fasheh 167ccd979bdSMark Fasheh if (!handle) 168ccd979bdSMark Fasheh handle = ocfs2_alloc_handle(osb); 169ccd979bdSMark Fasheh if (!handle) { 170ccd979bdSMark Fasheh ret = -ENOMEM; 171ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to allocate memory for journal " 172ccd979bdSMark Fasheh "handle!\n"); 173ccd979bdSMark Fasheh goto done_free; 174ccd979bdSMark Fasheh } 175ccd979bdSMark Fasheh 176ccd979bdSMark Fasheh handle->max_buffs = max_buffs; 177ccd979bdSMark Fasheh 178ccd979bdSMark Fasheh down_read(&osb->journal->j_trans_barrier); 179ccd979bdSMark Fasheh 180ccd979bdSMark Fasheh /* actually start the transaction now */ 181ccd979bdSMark Fasheh handle->k_handle = journal_start(journal, max_buffs); 182ccd979bdSMark Fasheh if (IS_ERR(handle->k_handle)) { 183ccd979bdSMark Fasheh up_read(&osb->journal->j_trans_barrier); 184ccd979bdSMark Fasheh 185ccd979bdSMark Fasheh ret = PTR_ERR(handle->k_handle); 186ccd979bdSMark Fasheh handle->k_handle = NULL; 187ccd979bdSMark Fasheh mlog_errno(ret); 188ccd979bdSMark Fasheh 189ccd979bdSMark Fasheh if (is_journal_aborted(journal)) { 190ccd979bdSMark Fasheh ocfs2_abort(osb->sb, "Detected aborted journal"); 191ccd979bdSMark Fasheh ret = -EROFS; 192ccd979bdSMark Fasheh } 193ccd979bdSMark Fasheh goto done_free; 194ccd979bdSMark Fasheh } 195ccd979bdSMark Fasheh 196ccd979bdSMark Fasheh atomic_inc(&(osb->journal->j_num_trans)); 197ccd979bdSMark Fasheh handle->flags |= OCFS2_HANDLE_STARTED; 198ccd979bdSMark Fasheh 199ccd979bdSMark Fasheh mlog_exit_ptr(handle); 200ccd979bdSMark Fasheh return handle; 201ccd979bdSMark Fasheh 202ccd979bdSMark Fasheh done_free: 203ccd979bdSMark Fasheh if (handle) 204ccd979bdSMark Fasheh ocfs2_commit_unstarted_handle(handle); /* will kfree handle */ 205ccd979bdSMark Fasheh 206ccd979bdSMark Fasheh mlog_exit(ret); 207ccd979bdSMark Fasheh return ERR_PTR(ret); 208ccd979bdSMark Fasheh } 209ccd979bdSMark Fasheh 210ccd979bdSMark Fasheh void ocfs2_handle_add_inode(struct ocfs2_journal_handle *handle, 211ccd979bdSMark Fasheh struct inode *inode) 212ccd979bdSMark Fasheh { 213ccd979bdSMark Fasheh BUG_ON(!handle); 214ccd979bdSMark Fasheh BUG_ON(!inode); 215ccd979bdSMark Fasheh 216ccd979bdSMark Fasheh atomic_inc(&inode->i_count); 217ccd979bdSMark Fasheh 218ccd979bdSMark Fasheh /* we're obviously changing it... */ 219ccd979bdSMark Fasheh down(&inode->i_sem); 220ccd979bdSMark Fasheh 221ccd979bdSMark Fasheh /* sanity check */ 222ccd979bdSMark Fasheh BUG_ON(OCFS2_I(inode)->ip_handle); 223ccd979bdSMark Fasheh BUG_ON(!list_empty(&OCFS2_I(inode)->ip_handle_list)); 224ccd979bdSMark Fasheh 225ccd979bdSMark Fasheh OCFS2_I(inode)->ip_handle = handle; 226ccd979bdSMark Fasheh list_del(&(OCFS2_I(inode)->ip_handle_list)); 227ccd979bdSMark Fasheh list_add_tail(&(OCFS2_I(inode)->ip_handle_list), &(handle->inode_list)); 228ccd979bdSMark Fasheh } 229ccd979bdSMark Fasheh 230ccd979bdSMark Fasheh static void ocfs2_handle_unlock_inodes(struct ocfs2_journal_handle *handle) 231ccd979bdSMark Fasheh { 232ccd979bdSMark Fasheh struct list_head *p, *n; 233ccd979bdSMark Fasheh struct inode *inode; 234ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 235ccd979bdSMark Fasheh 236ccd979bdSMark Fasheh list_for_each_safe(p, n, &handle->inode_list) { 237ccd979bdSMark Fasheh oi = list_entry(p, struct ocfs2_inode_info, 238ccd979bdSMark Fasheh ip_handle_list); 239ccd979bdSMark Fasheh inode = &oi->vfs_inode; 240ccd979bdSMark Fasheh 241ccd979bdSMark Fasheh OCFS2_I(inode)->ip_handle = NULL; 242ccd979bdSMark Fasheh list_del_init(&OCFS2_I(inode)->ip_handle_list); 243ccd979bdSMark Fasheh 244ccd979bdSMark Fasheh up(&inode->i_sem); 245ccd979bdSMark Fasheh iput(inode); 246ccd979bdSMark Fasheh } 247ccd979bdSMark Fasheh } 248ccd979bdSMark Fasheh 249ccd979bdSMark Fasheh /* This is trivial so we do it out of the main commit 250ccd979bdSMark Fasheh * paths. Beware, it can be called from start_trans too! */ 251ccd979bdSMark Fasheh static void ocfs2_commit_unstarted_handle(struct ocfs2_journal_handle *handle) 252ccd979bdSMark Fasheh { 253ccd979bdSMark Fasheh mlog_entry_void(); 254ccd979bdSMark Fasheh 255ccd979bdSMark Fasheh BUG_ON(handle->flags & OCFS2_HANDLE_STARTED); 256ccd979bdSMark Fasheh 257ccd979bdSMark Fasheh ocfs2_handle_unlock_inodes(handle); 258ccd979bdSMark Fasheh /* You are allowed to add journal locks before the transaction 259ccd979bdSMark Fasheh * has started. */ 260ccd979bdSMark Fasheh ocfs2_handle_cleanup_locks(handle->journal, handle); 261ccd979bdSMark Fasheh 262ccd979bdSMark Fasheh kfree(handle); 263ccd979bdSMark Fasheh 264ccd979bdSMark Fasheh mlog_exit_void(); 265ccd979bdSMark Fasheh } 266ccd979bdSMark Fasheh 267ccd979bdSMark Fasheh void ocfs2_commit_trans(struct ocfs2_journal_handle *handle) 268ccd979bdSMark Fasheh { 269ccd979bdSMark Fasheh handle_t *jbd_handle; 270ccd979bdSMark Fasheh int retval; 271ccd979bdSMark Fasheh struct ocfs2_journal *journal = handle->journal; 272ccd979bdSMark Fasheh 273ccd979bdSMark Fasheh mlog_entry_void(); 274ccd979bdSMark Fasheh 275ccd979bdSMark Fasheh BUG_ON(!handle); 276ccd979bdSMark Fasheh 277ccd979bdSMark Fasheh if (!(handle->flags & OCFS2_HANDLE_STARTED)) { 278ccd979bdSMark Fasheh ocfs2_commit_unstarted_handle(handle); 279ccd979bdSMark Fasheh mlog_exit_void(); 280ccd979bdSMark Fasheh return; 281ccd979bdSMark Fasheh } 282ccd979bdSMark Fasheh 283ccd979bdSMark Fasheh /* release inode semaphores we took during this transaction */ 284ccd979bdSMark Fasheh ocfs2_handle_unlock_inodes(handle); 285ccd979bdSMark Fasheh 286ccd979bdSMark Fasheh /* ocfs2_extend_trans may have had to call journal_restart 287ccd979bdSMark Fasheh * which will always commit the transaction, but may return 288ccd979bdSMark Fasheh * error for any number of reasons. If this is the case, we 289ccd979bdSMark Fasheh * clear k_handle as it's not valid any more. */ 290ccd979bdSMark Fasheh if (handle->k_handle) { 291ccd979bdSMark Fasheh jbd_handle = handle->k_handle; 292ccd979bdSMark Fasheh 293ccd979bdSMark Fasheh if (handle->flags & OCFS2_HANDLE_SYNC) 294ccd979bdSMark Fasheh jbd_handle->h_sync = 1; 295ccd979bdSMark Fasheh else 296ccd979bdSMark Fasheh jbd_handle->h_sync = 0; 297ccd979bdSMark Fasheh 298ccd979bdSMark Fasheh /* actually stop the transaction. if we've set h_sync, 299ccd979bdSMark Fasheh * it'll have been committed when we return */ 300ccd979bdSMark Fasheh retval = journal_stop(jbd_handle); 301ccd979bdSMark Fasheh if (retval < 0) { 302ccd979bdSMark Fasheh mlog_errno(retval); 303ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not commit transaction\n"); 304ccd979bdSMark Fasheh BUG(); 305ccd979bdSMark Fasheh } 306ccd979bdSMark Fasheh 307ccd979bdSMark Fasheh handle->k_handle = NULL; /* it's been free'd in journal_stop */ 308ccd979bdSMark Fasheh } 309ccd979bdSMark Fasheh 310ccd979bdSMark Fasheh ocfs2_handle_cleanup_locks(journal, handle); 311ccd979bdSMark Fasheh 312ccd979bdSMark Fasheh up_read(&journal->j_trans_barrier); 313ccd979bdSMark Fasheh 314ccd979bdSMark Fasheh kfree(handle); 315ccd979bdSMark Fasheh mlog_exit_void(); 316ccd979bdSMark Fasheh } 317ccd979bdSMark Fasheh 318ccd979bdSMark Fasheh /* 319ccd979bdSMark Fasheh * 'nblocks' is what you want to add to the current 320ccd979bdSMark Fasheh * transaction. extend_trans will either extend the current handle by 321ccd979bdSMark Fasheh * nblocks, or commit it and start a new one with nblocks credits. 322ccd979bdSMark Fasheh * 323ccd979bdSMark Fasheh * WARNING: This will not release any semaphores or disk locks taken 324ccd979bdSMark Fasheh * during the transaction, so make sure they were taken *before* 325ccd979bdSMark Fasheh * start_trans or we'll have ordering deadlocks. 326ccd979bdSMark Fasheh * 327ccd979bdSMark Fasheh * WARNING2: Note that we do *not* drop j_trans_barrier here. This is 328ccd979bdSMark Fasheh * good because transaction ids haven't yet been recorded on the 329ccd979bdSMark Fasheh * cluster locks associated with this handle. 330ccd979bdSMark Fasheh */ 331ccd979bdSMark Fasheh int ocfs2_extend_trans(struct ocfs2_journal_handle *handle, 332ccd979bdSMark Fasheh int nblocks) 333ccd979bdSMark Fasheh { 334ccd979bdSMark Fasheh int status; 335ccd979bdSMark Fasheh 336ccd979bdSMark Fasheh BUG_ON(!handle); 337ccd979bdSMark Fasheh BUG_ON(!(handle->flags & OCFS2_HANDLE_STARTED)); 338ccd979bdSMark Fasheh BUG_ON(!nblocks); 339ccd979bdSMark Fasheh 340ccd979bdSMark Fasheh mlog_entry_void(); 341ccd979bdSMark Fasheh 342ccd979bdSMark Fasheh mlog(0, "Trying to extend transaction by %d blocks\n", nblocks); 343ccd979bdSMark Fasheh 344ccd979bdSMark Fasheh status = journal_extend(handle->k_handle, nblocks); 345ccd979bdSMark Fasheh if (status < 0) { 346ccd979bdSMark Fasheh mlog_errno(status); 347ccd979bdSMark Fasheh goto bail; 348ccd979bdSMark Fasheh } 349ccd979bdSMark Fasheh 350ccd979bdSMark Fasheh if (status > 0) { 351ccd979bdSMark Fasheh mlog(0, "journal_extend failed, trying journal_restart\n"); 352ccd979bdSMark Fasheh status = journal_restart(handle->k_handle, nblocks); 353ccd979bdSMark Fasheh if (status < 0) { 354ccd979bdSMark Fasheh handle->k_handle = NULL; 355ccd979bdSMark Fasheh mlog_errno(status); 356ccd979bdSMark Fasheh goto bail; 357ccd979bdSMark Fasheh } 358ccd979bdSMark Fasheh handle->max_buffs = nblocks; 359ccd979bdSMark Fasheh } else 360ccd979bdSMark Fasheh handle->max_buffs += nblocks; 361ccd979bdSMark Fasheh 362ccd979bdSMark Fasheh status = 0; 363ccd979bdSMark Fasheh bail: 364ccd979bdSMark Fasheh 365ccd979bdSMark Fasheh mlog_exit(status); 366ccd979bdSMark Fasheh return status; 367ccd979bdSMark Fasheh } 368ccd979bdSMark Fasheh 369ccd979bdSMark Fasheh int ocfs2_journal_access(struct ocfs2_journal_handle *handle, 370ccd979bdSMark Fasheh struct inode *inode, 371ccd979bdSMark Fasheh struct buffer_head *bh, 372ccd979bdSMark Fasheh int type) 373ccd979bdSMark Fasheh { 374ccd979bdSMark Fasheh int status; 375ccd979bdSMark Fasheh 376ccd979bdSMark Fasheh BUG_ON(!inode); 377ccd979bdSMark Fasheh BUG_ON(!handle); 378ccd979bdSMark Fasheh BUG_ON(!bh); 379ccd979bdSMark Fasheh BUG_ON(!(handle->flags & OCFS2_HANDLE_STARTED)); 380ccd979bdSMark Fasheh 381ccd979bdSMark Fasheh mlog_entry("bh->b_blocknr=%llu, type=%d (\"%s\"), bh->b_size = %hu\n", 382ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr, type, 383ccd979bdSMark Fasheh (type == OCFS2_JOURNAL_ACCESS_CREATE) ? 384ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_CREATE" : 385ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_WRITE", 386ccd979bdSMark Fasheh bh->b_size); 387ccd979bdSMark Fasheh 388ccd979bdSMark Fasheh /* we can safely remove this assertion after testing. */ 389ccd979bdSMark Fasheh if (!buffer_uptodate(bh)) { 390ccd979bdSMark Fasheh mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); 391ccd979bdSMark Fasheh mlog(ML_ERROR, "b_blocknr=%llu\n", 392ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 393ccd979bdSMark Fasheh BUG(); 394ccd979bdSMark Fasheh } 395ccd979bdSMark Fasheh 396ccd979bdSMark Fasheh /* Set the current transaction information on the inode so 397ccd979bdSMark Fasheh * that the locking code knows whether it can drop it's locks 398ccd979bdSMark Fasheh * on this inode or not. We're protected from the commit 399ccd979bdSMark Fasheh * thread updating the current transaction id until 400ccd979bdSMark Fasheh * ocfs2_commit_trans() because ocfs2_start_trans() took 401ccd979bdSMark Fasheh * j_trans_barrier for us. */ 402ccd979bdSMark Fasheh ocfs2_set_inode_lock_trans(OCFS2_SB(inode->i_sb)->journal, inode); 403ccd979bdSMark Fasheh 404ccd979bdSMark Fasheh down(&OCFS2_I(inode)->ip_io_sem); 405ccd979bdSMark Fasheh switch (type) { 406ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_CREATE: 407ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_WRITE: 408ccd979bdSMark Fasheh status = journal_get_write_access(handle->k_handle, bh); 409ccd979bdSMark Fasheh break; 410ccd979bdSMark Fasheh 411ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_UNDO: 412ccd979bdSMark Fasheh status = journal_get_undo_access(handle->k_handle, bh); 413ccd979bdSMark Fasheh break; 414ccd979bdSMark Fasheh 415ccd979bdSMark Fasheh default: 416ccd979bdSMark Fasheh status = -EINVAL; 417ccd979bdSMark Fasheh mlog(ML_ERROR, "Uknown access type!\n"); 418ccd979bdSMark Fasheh } 419ccd979bdSMark Fasheh up(&OCFS2_I(inode)->ip_io_sem); 420ccd979bdSMark Fasheh 421ccd979bdSMark Fasheh if (status < 0) 422ccd979bdSMark Fasheh mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", 423ccd979bdSMark Fasheh status, type); 424ccd979bdSMark Fasheh 425ccd979bdSMark Fasheh mlog_exit(status); 426ccd979bdSMark Fasheh return status; 427ccd979bdSMark Fasheh } 428ccd979bdSMark Fasheh 429ccd979bdSMark Fasheh int ocfs2_journal_dirty(struct ocfs2_journal_handle *handle, 430ccd979bdSMark Fasheh struct buffer_head *bh) 431ccd979bdSMark Fasheh { 432ccd979bdSMark Fasheh int status; 433ccd979bdSMark Fasheh 434ccd979bdSMark Fasheh BUG_ON(!(handle->flags & OCFS2_HANDLE_STARTED)); 435ccd979bdSMark Fasheh 436ccd979bdSMark Fasheh mlog_entry("(bh->b_blocknr=%llu)\n", 437ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 438ccd979bdSMark Fasheh 439ccd979bdSMark Fasheh status = journal_dirty_metadata(handle->k_handle, bh); 440ccd979bdSMark Fasheh if (status < 0) 441ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not dirty metadata buffer. " 442ccd979bdSMark Fasheh "(bh->b_blocknr=%llu)\n", 443ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 444ccd979bdSMark Fasheh 445ccd979bdSMark Fasheh mlog_exit(status); 446ccd979bdSMark Fasheh return status; 447ccd979bdSMark Fasheh } 448ccd979bdSMark Fasheh 449ccd979bdSMark Fasheh int ocfs2_journal_dirty_data(handle_t *handle, 450ccd979bdSMark Fasheh struct buffer_head *bh) 451ccd979bdSMark Fasheh { 452ccd979bdSMark Fasheh int err = journal_dirty_data(handle, bh); 453ccd979bdSMark Fasheh if (err) 454ccd979bdSMark Fasheh mlog_errno(err); 455ccd979bdSMark Fasheh /* TODO: When we can handle it, abort the handle and go RO on 456ccd979bdSMark Fasheh * error here. */ 457ccd979bdSMark Fasheh 458ccd979bdSMark Fasheh return err; 459ccd979bdSMark Fasheh } 460ccd979bdSMark Fasheh 461ccd979bdSMark Fasheh /* We always assume you're adding a metadata lock at level 'ex' */ 462ccd979bdSMark Fasheh int ocfs2_handle_add_lock(struct ocfs2_journal_handle *handle, 463ccd979bdSMark Fasheh struct inode *inode) 464ccd979bdSMark Fasheh { 465ccd979bdSMark Fasheh int status; 466ccd979bdSMark Fasheh struct ocfs2_journal_lock *lock; 467ccd979bdSMark Fasheh 468ccd979bdSMark Fasheh BUG_ON(!inode); 469ccd979bdSMark Fasheh 470ccd979bdSMark Fasheh lock = kmem_cache_alloc(ocfs2_lock_cache, GFP_NOFS); 471ccd979bdSMark Fasheh if (!lock) { 472ccd979bdSMark Fasheh status = -ENOMEM; 473ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 474ccd979bdSMark Fasheh goto bail; 475ccd979bdSMark Fasheh } 476ccd979bdSMark Fasheh 477ccd979bdSMark Fasheh if (!igrab(inode)) 478ccd979bdSMark Fasheh BUG(); 479ccd979bdSMark Fasheh lock->jl_inode = inode; 480ccd979bdSMark Fasheh 481ccd979bdSMark Fasheh list_add_tail(&(lock->jl_lock_list), &(handle->locks)); 482ccd979bdSMark Fasheh handle->num_locks++; 483ccd979bdSMark Fasheh 484ccd979bdSMark Fasheh status = 0; 485ccd979bdSMark Fasheh bail: 486ccd979bdSMark Fasheh mlog_exit(status); 487ccd979bdSMark Fasheh return status; 488ccd979bdSMark Fasheh } 489ccd979bdSMark Fasheh 490ccd979bdSMark Fasheh static void ocfs2_handle_cleanup_locks(struct ocfs2_journal *journal, 491ccd979bdSMark Fasheh struct ocfs2_journal_handle *handle) 492ccd979bdSMark Fasheh { 493ccd979bdSMark Fasheh struct list_head *p, *n; 494ccd979bdSMark Fasheh struct ocfs2_journal_lock *lock; 495ccd979bdSMark Fasheh struct inode *inode; 496ccd979bdSMark Fasheh 497ccd979bdSMark Fasheh list_for_each_safe(p, n, &(handle->locks)) { 498ccd979bdSMark Fasheh lock = list_entry(p, struct ocfs2_journal_lock, 499ccd979bdSMark Fasheh jl_lock_list); 500ccd979bdSMark Fasheh list_del(&lock->jl_lock_list); 501ccd979bdSMark Fasheh handle->num_locks--; 502ccd979bdSMark Fasheh 503ccd979bdSMark Fasheh inode = lock->jl_inode; 504ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 505ccd979bdSMark Fasheh if (atomic_read(&inode->i_count) == 1) 506ccd979bdSMark Fasheh mlog(ML_ERROR, 507ccd979bdSMark Fasheh "Inode %"MLFu64", I'm doing a last iput for!", 508ccd979bdSMark Fasheh OCFS2_I(inode)->ip_blkno); 509ccd979bdSMark Fasheh iput(inode); 510ccd979bdSMark Fasheh kmem_cache_free(ocfs2_lock_cache, lock); 511ccd979bdSMark Fasheh } 512ccd979bdSMark Fasheh } 513ccd979bdSMark Fasheh 514ccd979bdSMark Fasheh #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * 5) 515ccd979bdSMark Fasheh 516ccd979bdSMark Fasheh void ocfs2_set_journal_params(struct ocfs2_super *osb) 517ccd979bdSMark Fasheh { 518ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 519ccd979bdSMark Fasheh 520ccd979bdSMark Fasheh spin_lock(&journal->j_state_lock); 521ccd979bdSMark Fasheh journal->j_commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; 522ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) 523ccd979bdSMark Fasheh journal->j_flags |= JFS_BARRIER; 524ccd979bdSMark Fasheh else 525ccd979bdSMark Fasheh journal->j_flags &= ~JFS_BARRIER; 526ccd979bdSMark Fasheh spin_unlock(&journal->j_state_lock); 527ccd979bdSMark Fasheh } 528ccd979bdSMark Fasheh 529ccd979bdSMark Fasheh int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty) 530ccd979bdSMark Fasheh { 531ccd979bdSMark Fasheh int status = -1; 532ccd979bdSMark Fasheh struct inode *inode = NULL; /* the journal inode */ 533ccd979bdSMark Fasheh journal_t *j_journal = NULL; 534ccd979bdSMark Fasheh struct ocfs2_dinode *di = NULL; 535ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 536ccd979bdSMark Fasheh struct ocfs2_super *osb; 537ccd979bdSMark Fasheh int meta_lock = 0; 538ccd979bdSMark Fasheh 539ccd979bdSMark Fasheh mlog_entry_void(); 540ccd979bdSMark Fasheh 541ccd979bdSMark Fasheh BUG_ON(!journal); 542ccd979bdSMark Fasheh 543ccd979bdSMark Fasheh osb = journal->j_osb; 544ccd979bdSMark Fasheh 545ccd979bdSMark Fasheh /* already have the inode for our journal */ 546ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 547ccd979bdSMark Fasheh osb->slot_num); 548ccd979bdSMark Fasheh if (inode == NULL) { 549ccd979bdSMark Fasheh status = -EACCES; 550ccd979bdSMark Fasheh mlog_errno(status); 551ccd979bdSMark Fasheh goto done; 552ccd979bdSMark Fasheh } 553ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 554ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 555ccd979bdSMark Fasheh iput(inode); 556ccd979bdSMark Fasheh inode = NULL; 557ccd979bdSMark Fasheh status = -EACCES; 558ccd979bdSMark Fasheh goto done; 559ccd979bdSMark Fasheh } 560ccd979bdSMark Fasheh 561ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 562ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count++; 563ccd979bdSMark Fasheh 564ccd979bdSMark Fasheh status = ocfs2_meta_lock(inode, NULL, &bh, 1); 565ccd979bdSMark Fasheh if (status < 0) { 566ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 567ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not get lock on journal!\n"); 568ccd979bdSMark Fasheh goto done; 569ccd979bdSMark Fasheh } 570ccd979bdSMark Fasheh 571ccd979bdSMark Fasheh meta_lock = 1; 572ccd979bdSMark Fasheh di = (struct ocfs2_dinode *)bh->b_data; 573ccd979bdSMark Fasheh 574ccd979bdSMark Fasheh if (inode->i_size < OCFS2_MIN_JOURNAL_SIZE) { 575ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", 576ccd979bdSMark Fasheh inode->i_size); 577ccd979bdSMark Fasheh status = -EINVAL; 578ccd979bdSMark Fasheh goto done; 579ccd979bdSMark Fasheh } 580ccd979bdSMark Fasheh 581ccd979bdSMark Fasheh mlog(0, "inode->i_size = %lld\n", inode->i_size); 582ccd979bdSMark Fasheh mlog(0, "inode->i_blocks = %lu\n", inode->i_blocks); 583ccd979bdSMark Fasheh mlog(0, "inode->ip_clusters = %u\n", OCFS2_I(inode)->ip_clusters); 584ccd979bdSMark Fasheh 585ccd979bdSMark Fasheh /* call the kernels journal init function now */ 586ccd979bdSMark Fasheh j_journal = journal_init_inode(inode); 587ccd979bdSMark Fasheh if (j_journal == NULL) { 588ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 589ccd979bdSMark Fasheh status = -EINVAL; 590ccd979bdSMark Fasheh goto done; 591ccd979bdSMark Fasheh } 592ccd979bdSMark Fasheh 593ccd979bdSMark Fasheh mlog(0, "Returned from journal_init_inode\n"); 594ccd979bdSMark Fasheh mlog(0, "j_journal->j_maxlen = %u\n", j_journal->j_maxlen); 595ccd979bdSMark Fasheh 596ccd979bdSMark Fasheh *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & 597ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL); 598ccd979bdSMark Fasheh 599ccd979bdSMark Fasheh journal->j_journal = j_journal; 600ccd979bdSMark Fasheh journal->j_inode = inode; 601ccd979bdSMark Fasheh journal->j_bh = bh; 602ccd979bdSMark Fasheh 603ccd979bdSMark Fasheh ocfs2_set_journal_params(osb); 604ccd979bdSMark Fasheh 605ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_LOADED; 606ccd979bdSMark Fasheh 607ccd979bdSMark Fasheh status = 0; 608ccd979bdSMark Fasheh done: 609ccd979bdSMark Fasheh if (status < 0) { 610ccd979bdSMark Fasheh if (meta_lock) 611ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 612ccd979bdSMark Fasheh if (bh != NULL) 613ccd979bdSMark Fasheh brelse(bh); 614ccd979bdSMark Fasheh if (inode) { 615ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 616ccd979bdSMark Fasheh iput(inode); 617ccd979bdSMark Fasheh } 618ccd979bdSMark Fasheh } 619ccd979bdSMark Fasheh 620ccd979bdSMark Fasheh mlog_exit(status); 621ccd979bdSMark Fasheh return status; 622ccd979bdSMark Fasheh } 623ccd979bdSMark Fasheh 624ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 625ccd979bdSMark Fasheh int dirty) 626ccd979bdSMark Fasheh { 627ccd979bdSMark Fasheh int status; 628ccd979bdSMark Fasheh unsigned int flags; 629ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 630ccd979bdSMark Fasheh struct buffer_head *bh = journal->j_bh; 631ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 632ccd979bdSMark Fasheh 633ccd979bdSMark Fasheh mlog_entry_void(); 634ccd979bdSMark Fasheh 635ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *)bh->b_data; 636ccd979bdSMark Fasheh if (!OCFS2_IS_VALID_DINODE(fe)) { 637ccd979bdSMark Fasheh /* This is called from startup/shutdown which will 638ccd979bdSMark Fasheh * handle the errors in a specific manner, so no need 639ccd979bdSMark Fasheh * to call ocfs2_error() here. */ 640ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal dinode %"MLFu64" has invalid " 641ccd979bdSMark Fasheh "signature: %.*s", fe->i_blkno, 7, fe->i_signature); 642ccd979bdSMark Fasheh status = -EIO; 643ccd979bdSMark Fasheh goto out; 644ccd979bdSMark Fasheh } 645ccd979bdSMark Fasheh 646ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 647ccd979bdSMark Fasheh if (dirty) 648ccd979bdSMark Fasheh flags |= OCFS2_JOURNAL_DIRTY_FL; 649ccd979bdSMark Fasheh else 650ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 651ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 652ccd979bdSMark Fasheh 653ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, journal->j_inode); 654ccd979bdSMark Fasheh if (status < 0) 655ccd979bdSMark Fasheh mlog_errno(status); 656ccd979bdSMark Fasheh 657ccd979bdSMark Fasheh out: 658ccd979bdSMark Fasheh mlog_exit(status); 659ccd979bdSMark Fasheh return status; 660ccd979bdSMark Fasheh } 661ccd979bdSMark Fasheh 662ccd979bdSMark Fasheh /* 663ccd979bdSMark Fasheh * If the journal has been kmalloc'd it needs to be freed after this 664ccd979bdSMark Fasheh * call. 665ccd979bdSMark Fasheh */ 666ccd979bdSMark Fasheh void ocfs2_journal_shutdown(struct ocfs2_super *osb) 667ccd979bdSMark Fasheh { 668ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 669ccd979bdSMark Fasheh int status = 0; 670ccd979bdSMark Fasheh struct inode *inode = NULL; 671ccd979bdSMark Fasheh int num_running_trans = 0; 672ccd979bdSMark Fasheh 673ccd979bdSMark Fasheh mlog_entry_void(); 674ccd979bdSMark Fasheh 675ccd979bdSMark Fasheh if (!osb) 676ccd979bdSMark Fasheh BUG(); 677ccd979bdSMark Fasheh 678ccd979bdSMark Fasheh journal = osb->journal; 679ccd979bdSMark Fasheh if (!journal) 680ccd979bdSMark Fasheh goto done; 681ccd979bdSMark Fasheh 682ccd979bdSMark Fasheh inode = journal->j_inode; 683ccd979bdSMark Fasheh 684ccd979bdSMark Fasheh if (journal->j_state != OCFS2_JOURNAL_LOADED) 685ccd979bdSMark Fasheh goto done; 686ccd979bdSMark Fasheh 687ccd979bdSMark Fasheh /* need to inc inode use count as journal_destroy will iput. */ 688ccd979bdSMark Fasheh if (!igrab(inode)) 689ccd979bdSMark Fasheh BUG(); 690ccd979bdSMark Fasheh 691ccd979bdSMark Fasheh num_running_trans = atomic_read(&(osb->journal->j_num_trans)); 692ccd979bdSMark Fasheh if (num_running_trans > 0) 693ccd979bdSMark Fasheh mlog(0, "Shutting down journal: must wait on %d " 694ccd979bdSMark Fasheh "running transactions!\n", 695ccd979bdSMark Fasheh num_running_trans); 696ccd979bdSMark Fasheh 697ccd979bdSMark Fasheh /* Do a commit_cache here. It will flush our journal, *and* 698ccd979bdSMark Fasheh * release any locks that are still held. 699ccd979bdSMark Fasheh * set the SHUTDOWN flag and release the trans lock. 700ccd979bdSMark Fasheh * the commit thread will take the trans lock for us below. */ 701ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; 702ccd979bdSMark Fasheh 703ccd979bdSMark Fasheh /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not 704ccd979bdSMark Fasheh * drop the trans_lock (which we want to hold until we 705ccd979bdSMark Fasheh * completely destroy the journal. */ 706ccd979bdSMark Fasheh if (osb->commit_task) { 707ccd979bdSMark Fasheh /* Wait for the commit thread */ 708ccd979bdSMark Fasheh mlog(0, "Waiting for ocfs2commit to exit....\n"); 709ccd979bdSMark Fasheh kthread_stop(osb->commit_task); 710ccd979bdSMark Fasheh osb->commit_task = NULL; 711ccd979bdSMark Fasheh } 712ccd979bdSMark Fasheh 713ccd979bdSMark Fasheh BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); 714ccd979bdSMark Fasheh 715ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(osb, 0); 716ccd979bdSMark Fasheh if (status < 0) 717ccd979bdSMark Fasheh mlog_errno(status); 718ccd979bdSMark Fasheh 719ccd979bdSMark Fasheh /* Shutdown the kernel journal system */ 720ccd979bdSMark Fasheh journal_destroy(journal->j_journal); 721ccd979bdSMark Fasheh 722ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 723ccd979bdSMark Fasheh 724ccd979bdSMark Fasheh /* unlock our journal */ 725ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 726ccd979bdSMark Fasheh 727ccd979bdSMark Fasheh brelse(journal->j_bh); 728ccd979bdSMark Fasheh journal->j_bh = NULL; 729ccd979bdSMark Fasheh 730ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 731ccd979bdSMark Fasheh 732ccd979bdSMark Fasheh // up_write(&journal->j_trans_barrier); 733ccd979bdSMark Fasheh done: 734ccd979bdSMark Fasheh if (inode) 735ccd979bdSMark Fasheh iput(inode); 736ccd979bdSMark Fasheh mlog_exit_void(); 737ccd979bdSMark Fasheh } 738ccd979bdSMark Fasheh 739ccd979bdSMark Fasheh static void ocfs2_clear_journal_error(struct super_block *sb, 740ccd979bdSMark Fasheh journal_t *journal, 741ccd979bdSMark Fasheh int slot) 742ccd979bdSMark Fasheh { 743ccd979bdSMark Fasheh int olderr; 744ccd979bdSMark Fasheh 745ccd979bdSMark Fasheh olderr = journal_errno(journal); 746ccd979bdSMark Fasheh if (olderr) { 747ccd979bdSMark Fasheh mlog(ML_ERROR, "File system error %d recorded in " 748ccd979bdSMark Fasheh "journal %u.\n", olderr, slot); 749ccd979bdSMark Fasheh mlog(ML_ERROR, "File system on device %s needs checking.\n", 750ccd979bdSMark Fasheh sb->s_id); 751ccd979bdSMark Fasheh 752ccd979bdSMark Fasheh journal_ack_err(journal); 753ccd979bdSMark Fasheh journal_clear_err(journal); 754ccd979bdSMark Fasheh } 755ccd979bdSMark Fasheh } 756ccd979bdSMark Fasheh 757ccd979bdSMark Fasheh int ocfs2_journal_load(struct ocfs2_journal *journal) 758ccd979bdSMark Fasheh { 759ccd979bdSMark Fasheh int status = 0; 760ccd979bdSMark Fasheh struct ocfs2_super *osb; 761ccd979bdSMark Fasheh 762ccd979bdSMark Fasheh mlog_entry_void(); 763ccd979bdSMark Fasheh 764ccd979bdSMark Fasheh if (!journal) 765ccd979bdSMark Fasheh BUG(); 766ccd979bdSMark Fasheh 767ccd979bdSMark Fasheh osb = journal->j_osb; 768ccd979bdSMark Fasheh 769ccd979bdSMark Fasheh status = journal_load(journal->j_journal); 770ccd979bdSMark Fasheh if (status < 0) { 771ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to load journal!\n"); 772ccd979bdSMark Fasheh goto done; 773ccd979bdSMark Fasheh } 774ccd979bdSMark Fasheh 775ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); 776ccd979bdSMark Fasheh 777ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(osb, 1); 778ccd979bdSMark Fasheh if (status < 0) { 779ccd979bdSMark Fasheh mlog_errno(status); 780ccd979bdSMark Fasheh goto done; 781ccd979bdSMark Fasheh } 782ccd979bdSMark Fasheh 783ccd979bdSMark Fasheh /* Launch the commit thread */ 784ccd979bdSMark Fasheh osb->commit_task = kthread_run(ocfs2_commit_thread, osb, "ocfs2cmt-%d", 785ccd979bdSMark Fasheh osb->osb_id); 786ccd979bdSMark Fasheh if (IS_ERR(osb->commit_task)) { 787ccd979bdSMark Fasheh status = PTR_ERR(osb->commit_task); 788ccd979bdSMark Fasheh osb->commit_task = NULL; 789ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to launch ocfs2commit thread, error=%d", 790ccd979bdSMark Fasheh status); 791ccd979bdSMark Fasheh goto done; 792ccd979bdSMark Fasheh } 793ccd979bdSMark Fasheh 794ccd979bdSMark Fasheh done: 795ccd979bdSMark Fasheh mlog_exit(status); 796ccd979bdSMark Fasheh return status; 797ccd979bdSMark Fasheh } 798ccd979bdSMark Fasheh 799ccd979bdSMark Fasheh 800ccd979bdSMark Fasheh /* 'full' flag tells us whether we clear out all blocks or if we just 801ccd979bdSMark Fasheh * mark the journal clean */ 802ccd979bdSMark Fasheh int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) 803ccd979bdSMark Fasheh { 804ccd979bdSMark Fasheh int status; 805ccd979bdSMark Fasheh 806ccd979bdSMark Fasheh mlog_entry_void(); 807ccd979bdSMark Fasheh 808ccd979bdSMark Fasheh if (!journal) 809ccd979bdSMark Fasheh BUG(); 810ccd979bdSMark Fasheh 811ccd979bdSMark Fasheh status = journal_wipe(journal->j_journal, full); 812ccd979bdSMark Fasheh if (status < 0) { 813ccd979bdSMark Fasheh mlog_errno(status); 814ccd979bdSMark Fasheh goto bail; 815ccd979bdSMark Fasheh } 816ccd979bdSMark Fasheh 817ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(journal->j_osb, 0); 818ccd979bdSMark Fasheh if (status < 0) 819ccd979bdSMark Fasheh mlog_errno(status); 820ccd979bdSMark Fasheh 821ccd979bdSMark Fasheh bail: 822ccd979bdSMark Fasheh mlog_exit(status); 823ccd979bdSMark Fasheh return status; 824ccd979bdSMark Fasheh } 825ccd979bdSMark Fasheh 826ccd979bdSMark Fasheh /* 827ccd979bdSMark Fasheh * JBD Might read a cached version of another nodes journal file. We 828ccd979bdSMark Fasheh * don't want this as this file changes often and we get no 829ccd979bdSMark Fasheh * notification on those changes. The only way to be sure that we've 830ccd979bdSMark Fasheh * got the most up to date version of those blocks then is to force 831ccd979bdSMark Fasheh * read them off disk. Just searching through the buffer cache won't 832ccd979bdSMark Fasheh * work as there may be pages backing this file which are still marked 833ccd979bdSMark Fasheh * up to date. We know things can't change on this file underneath us 834ccd979bdSMark Fasheh * as we have the lock by now :) 835ccd979bdSMark Fasheh */ 836ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode) 837ccd979bdSMark Fasheh { 838ccd979bdSMark Fasheh int status = 0; 839ccd979bdSMark Fasheh int i, p_blocks; 840ccd979bdSMark Fasheh u64 v_blkno, p_blkno; 841ccd979bdSMark Fasheh #define CONCURRENT_JOURNAL_FILL 32 842ccd979bdSMark Fasheh struct buffer_head *bhs[CONCURRENT_JOURNAL_FILL]; 843ccd979bdSMark Fasheh 844ccd979bdSMark Fasheh mlog_entry_void(); 845ccd979bdSMark Fasheh 846ccd979bdSMark Fasheh BUG_ON(inode->i_blocks != 847ccd979bdSMark Fasheh ocfs2_align_bytes_to_sectors(i_size_read(inode))); 848ccd979bdSMark Fasheh 849ccd979bdSMark Fasheh memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL); 850ccd979bdSMark Fasheh 851ccd979bdSMark Fasheh mlog(0, "Force reading %lu blocks\n", 852ccd979bdSMark Fasheh (inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9))); 853ccd979bdSMark Fasheh 854ccd979bdSMark Fasheh v_blkno = 0; 855ccd979bdSMark Fasheh while (v_blkno < 856ccd979bdSMark Fasheh (inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9))) { 857ccd979bdSMark Fasheh 858ccd979bdSMark Fasheh status = ocfs2_extent_map_get_blocks(inode, v_blkno, 859ccd979bdSMark Fasheh 1, &p_blkno, 860ccd979bdSMark Fasheh &p_blocks); 861ccd979bdSMark Fasheh if (status < 0) { 862ccd979bdSMark Fasheh mlog_errno(status); 863ccd979bdSMark Fasheh goto bail; 864ccd979bdSMark Fasheh } 865ccd979bdSMark Fasheh 866ccd979bdSMark Fasheh if (p_blocks > CONCURRENT_JOURNAL_FILL) 867ccd979bdSMark Fasheh p_blocks = CONCURRENT_JOURNAL_FILL; 868ccd979bdSMark Fasheh 869ccd979bdSMark Fasheh status = ocfs2_read_blocks(OCFS2_SB(inode->i_sb), 870ccd979bdSMark Fasheh p_blkno, p_blocks, bhs, 0, 871ccd979bdSMark Fasheh inode); 872ccd979bdSMark Fasheh if (status < 0) { 873ccd979bdSMark Fasheh mlog_errno(status); 874ccd979bdSMark Fasheh goto bail; 875ccd979bdSMark Fasheh } 876ccd979bdSMark Fasheh 877ccd979bdSMark Fasheh for(i = 0; i < p_blocks; i++) { 878ccd979bdSMark Fasheh brelse(bhs[i]); 879ccd979bdSMark Fasheh bhs[i] = NULL; 880ccd979bdSMark Fasheh } 881ccd979bdSMark Fasheh 882ccd979bdSMark Fasheh v_blkno += p_blocks; 883ccd979bdSMark Fasheh } 884ccd979bdSMark Fasheh 885ccd979bdSMark Fasheh bail: 886ccd979bdSMark Fasheh for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++) 887ccd979bdSMark Fasheh if (bhs[i]) 888ccd979bdSMark Fasheh brelse(bhs[i]); 889ccd979bdSMark Fasheh mlog_exit(status); 890ccd979bdSMark Fasheh return status; 891ccd979bdSMark Fasheh } 892ccd979bdSMark Fasheh 893ccd979bdSMark Fasheh struct ocfs2_la_recovery_item { 894ccd979bdSMark Fasheh struct list_head lri_list; 895ccd979bdSMark Fasheh int lri_slot; 896ccd979bdSMark Fasheh struct ocfs2_dinode *lri_la_dinode; 897ccd979bdSMark Fasheh struct ocfs2_dinode *lri_tl_dinode; 898ccd979bdSMark Fasheh }; 899ccd979bdSMark Fasheh 900ccd979bdSMark Fasheh /* Does the second half of the recovery process. By this point, the 901ccd979bdSMark Fasheh * node is marked clean and can actually be considered recovered, 902ccd979bdSMark Fasheh * hence it's no longer in the recovery map, but there's still some 903ccd979bdSMark Fasheh * cleanup we can do which shouldn't happen within the recovery thread 904ccd979bdSMark Fasheh * as locking in that context becomes very difficult if we are to take 905ccd979bdSMark Fasheh * recovering nodes into account. 906ccd979bdSMark Fasheh * 907ccd979bdSMark Fasheh * NOTE: This function can and will sleep on recovery of other nodes 908ccd979bdSMark Fasheh * during cluster locking, just like any other ocfs2 process. 909ccd979bdSMark Fasheh */ 910ccd979bdSMark Fasheh void ocfs2_complete_recovery(void *data) 911ccd979bdSMark Fasheh { 912ccd979bdSMark Fasheh int ret; 913ccd979bdSMark Fasheh struct ocfs2_super *osb = data; 914ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 915ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, *tl_dinode; 916ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 917ccd979bdSMark Fasheh struct list_head *p, *n; 918ccd979bdSMark Fasheh LIST_HEAD(tmp_la_list); 919ccd979bdSMark Fasheh 920ccd979bdSMark Fasheh mlog_entry_void(); 921ccd979bdSMark Fasheh 922ccd979bdSMark Fasheh mlog(0, "completing recovery from keventd\n"); 923ccd979bdSMark Fasheh 924ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 925ccd979bdSMark Fasheh list_splice_init(&journal->j_la_cleanups, &tmp_la_list); 926ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 927ccd979bdSMark Fasheh 928ccd979bdSMark Fasheh list_for_each_safe(p, n, &tmp_la_list) { 929ccd979bdSMark Fasheh item = list_entry(p, struct ocfs2_la_recovery_item, lri_list); 930ccd979bdSMark Fasheh list_del_init(&item->lri_list); 931ccd979bdSMark Fasheh 932ccd979bdSMark Fasheh mlog(0, "Complete recovery for slot %d\n", item->lri_slot); 933ccd979bdSMark Fasheh 934ccd979bdSMark Fasheh la_dinode = item->lri_la_dinode; 935ccd979bdSMark Fasheh if (la_dinode) { 936ccd979bdSMark Fasheh mlog(0, "Clean up local alloc %"MLFu64"\n", 937ccd979bdSMark Fasheh la_dinode->i_blkno); 938ccd979bdSMark Fasheh 939ccd979bdSMark Fasheh ret = ocfs2_complete_local_alloc_recovery(osb, 940ccd979bdSMark Fasheh la_dinode); 941ccd979bdSMark Fasheh if (ret < 0) 942ccd979bdSMark Fasheh mlog_errno(ret); 943ccd979bdSMark Fasheh 944ccd979bdSMark Fasheh kfree(la_dinode); 945ccd979bdSMark Fasheh } 946ccd979bdSMark Fasheh 947ccd979bdSMark Fasheh tl_dinode = item->lri_tl_dinode; 948ccd979bdSMark Fasheh if (tl_dinode) { 949ccd979bdSMark Fasheh mlog(0, "Clean up truncate log %"MLFu64"\n", 950ccd979bdSMark Fasheh tl_dinode->i_blkno); 951ccd979bdSMark Fasheh 952ccd979bdSMark Fasheh ret = ocfs2_complete_truncate_log_recovery(osb, 953ccd979bdSMark Fasheh tl_dinode); 954ccd979bdSMark Fasheh if (ret < 0) 955ccd979bdSMark Fasheh mlog_errno(ret); 956ccd979bdSMark Fasheh 957ccd979bdSMark Fasheh kfree(tl_dinode); 958ccd979bdSMark Fasheh } 959ccd979bdSMark Fasheh 960ccd979bdSMark Fasheh ret = ocfs2_recover_orphans(osb, item->lri_slot); 961ccd979bdSMark Fasheh if (ret < 0) 962ccd979bdSMark Fasheh mlog_errno(ret); 963ccd979bdSMark Fasheh 964ccd979bdSMark Fasheh kfree(item); 965ccd979bdSMark Fasheh } 966ccd979bdSMark Fasheh 967ccd979bdSMark Fasheh mlog(0, "Recovery completion\n"); 968ccd979bdSMark Fasheh mlog_exit_void(); 969ccd979bdSMark Fasheh } 970ccd979bdSMark Fasheh 971ccd979bdSMark Fasheh /* NOTE: This function always eats your references to la_dinode and 972ccd979bdSMark Fasheh * tl_dinode, either manually on error, or by passing them to 973ccd979bdSMark Fasheh * ocfs2_complete_recovery */ 974ccd979bdSMark Fasheh static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 975ccd979bdSMark Fasheh int slot_num, 976ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, 977ccd979bdSMark Fasheh struct ocfs2_dinode *tl_dinode) 978ccd979bdSMark Fasheh { 979ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 980ccd979bdSMark Fasheh 981ccd979bdSMark Fasheh item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_KERNEL); 982ccd979bdSMark Fasheh if (!item) { 983ccd979bdSMark Fasheh /* Though we wish to avoid it, we are in fact safe in 984ccd979bdSMark Fasheh * skipping local alloc cleanup as fsck.ocfs2 is more 985ccd979bdSMark Fasheh * than capable of reclaiming unused space. */ 986ccd979bdSMark Fasheh if (la_dinode) 987ccd979bdSMark Fasheh kfree(la_dinode); 988ccd979bdSMark Fasheh 989ccd979bdSMark Fasheh if (tl_dinode) 990ccd979bdSMark Fasheh kfree(tl_dinode); 991ccd979bdSMark Fasheh 992ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 993ccd979bdSMark Fasheh return; 994ccd979bdSMark Fasheh } 995ccd979bdSMark Fasheh 996ccd979bdSMark Fasheh INIT_LIST_HEAD(&item->lri_list); 997ccd979bdSMark Fasheh item->lri_la_dinode = la_dinode; 998ccd979bdSMark Fasheh item->lri_slot = slot_num; 999ccd979bdSMark Fasheh item->lri_tl_dinode = tl_dinode; 1000ccd979bdSMark Fasheh 1001ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 1002ccd979bdSMark Fasheh list_add_tail(&item->lri_list, &journal->j_la_cleanups); 1003ccd979bdSMark Fasheh queue_work(ocfs2_wq, &journal->j_recovery_work); 1004ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 1005ccd979bdSMark Fasheh } 1006ccd979bdSMark Fasheh 1007ccd979bdSMark Fasheh /* Called by the mount code to queue recovery the last part of 1008ccd979bdSMark Fasheh * recovery for it's own slot. */ 1009ccd979bdSMark Fasheh void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) 1010ccd979bdSMark Fasheh { 1011ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 1012ccd979bdSMark Fasheh 1013ccd979bdSMark Fasheh if (osb->dirty) { 1014ccd979bdSMark Fasheh /* No need to queue up our truncate_log as regular 1015ccd979bdSMark Fasheh * cleanup will catch that. */ 1016ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(journal, 1017ccd979bdSMark Fasheh osb->slot_num, 1018ccd979bdSMark Fasheh osb->local_alloc_copy, 1019ccd979bdSMark Fasheh NULL); 1020ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 1021ccd979bdSMark Fasheh 1022ccd979bdSMark Fasheh osb->local_alloc_copy = NULL; 1023ccd979bdSMark Fasheh osb->dirty = 0; 1024ccd979bdSMark Fasheh } 1025ccd979bdSMark Fasheh } 1026ccd979bdSMark Fasheh 1027ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg) 1028ccd979bdSMark Fasheh { 1029ccd979bdSMark Fasheh int status, node_num; 1030ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 1031ccd979bdSMark Fasheh 1032ccd979bdSMark Fasheh mlog_entry_void(); 1033ccd979bdSMark Fasheh 1034ccd979bdSMark Fasheh status = ocfs2_wait_on_mount(osb); 1035ccd979bdSMark Fasheh if (status < 0) { 1036ccd979bdSMark Fasheh goto bail; 1037ccd979bdSMark Fasheh } 1038ccd979bdSMark Fasheh 1039ccd979bdSMark Fasheh restart: 1040ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1041ccd979bdSMark Fasheh if (status < 0) { 1042ccd979bdSMark Fasheh mlog_errno(status); 1043ccd979bdSMark Fasheh goto bail; 1044ccd979bdSMark Fasheh } 1045ccd979bdSMark Fasheh 1046ccd979bdSMark Fasheh while(!ocfs2_node_map_is_empty(osb, &osb->recovery_map)) { 1047ccd979bdSMark Fasheh node_num = ocfs2_node_map_first_set_bit(osb, 1048ccd979bdSMark Fasheh &osb->recovery_map); 1049ccd979bdSMark Fasheh if (node_num == O2NM_INVALID_NODE_NUM) { 1050ccd979bdSMark Fasheh mlog(0, "Out of nodes to recover.\n"); 1051ccd979bdSMark Fasheh break; 1052ccd979bdSMark Fasheh } 1053ccd979bdSMark Fasheh 1054ccd979bdSMark Fasheh status = ocfs2_recover_node(osb, node_num); 1055ccd979bdSMark Fasheh if (status < 0) { 1056ccd979bdSMark Fasheh mlog(ML_ERROR, 1057ccd979bdSMark Fasheh "Error %d recovering node %d on device (%u,%u)!\n", 1058ccd979bdSMark Fasheh status, node_num, 1059ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1060ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume requires unmount.\n"); 1061ccd979bdSMark Fasheh continue; 1062ccd979bdSMark Fasheh } 1063ccd979bdSMark Fasheh 1064ccd979bdSMark Fasheh ocfs2_recovery_map_clear(osb, node_num); 1065ccd979bdSMark Fasheh } 1066ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1067ccd979bdSMark Fasheh 1068ccd979bdSMark Fasheh /* We always run recovery on our own orphan dir - the dead 1069ccd979bdSMark Fasheh * node(s) may have voted "no" on an inode delete earlier. A 1070ccd979bdSMark Fasheh * revote is therefore required. */ 1071ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, 1072ccd979bdSMark Fasheh NULL); 1073ccd979bdSMark Fasheh 1074ccd979bdSMark Fasheh bail: 1075ccd979bdSMark Fasheh down(&osb->recovery_lock); 1076ccd979bdSMark Fasheh if (!status && 1077ccd979bdSMark Fasheh !ocfs2_node_map_is_empty(osb, &osb->recovery_map)) { 1078ccd979bdSMark Fasheh up(&osb->recovery_lock); 1079ccd979bdSMark Fasheh goto restart; 1080ccd979bdSMark Fasheh } 1081ccd979bdSMark Fasheh 1082ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1083ccd979bdSMark Fasheh mb(); /* sync with ocfs2_recovery_thread_running */ 1084ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1085ccd979bdSMark Fasheh 1086ccd979bdSMark Fasheh up(&osb->recovery_lock); 1087ccd979bdSMark Fasheh 1088ccd979bdSMark Fasheh mlog_exit(status); 1089ccd979bdSMark Fasheh /* no one is callint kthread_stop() for us so the kthread() api 1090ccd979bdSMark Fasheh * requires that we call do_exit(). And it isn't exported, but 1091ccd979bdSMark Fasheh * complete_and_exit() seems to be a minimal wrapper around it. */ 1092ccd979bdSMark Fasheh complete_and_exit(NULL, status); 1093ccd979bdSMark Fasheh return status; 1094ccd979bdSMark Fasheh } 1095ccd979bdSMark Fasheh 1096ccd979bdSMark Fasheh void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) 1097ccd979bdSMark Fasheh { 1098ccd979bdSMark Fasheh mlog_entry("(node_num=%d, osb->node_num = %d)\n", 1099ccd979bdSMark Fasheh node_num, osb->node_num); 1100ccd979bdSMark Fasheh 1101ccd979bdSMark Fasheh down(&osb->recovery_lock); 1102ccd979bdSMark Fasheh if (osb->disable_recovery) 1103ccd979bdSMark Fasheh goto out; 1104ccd979bdSMark Fasheh 1105ccd979bdSMark Fasheh /* People waiting on recovery will wait on 1106ccd979bdSMark Fasheh * the recovery map to empty. */ 1107ccd979bdSMark Fasheh if (!ocfs2_recovery_map_set(osb, node_num)) 1108ccd979bdSMark Fasheh mlog(0, "node %d already be in recovery.\n", node_num); 1109ccd979bdSMark Fasheh 1110ccd979bdSMark Fasheh mlog(0, "starting recovery thread...\n"); 1111ccd979bdSMark Fasheh 1112ccd979bdSMark Fasheh if (osb->recovery_thread_task) 1113ccd979bdSMark Fasheh goto out; 1114ccd979bdSMark Fasheh 1115ccd979bdSMark Fasheh osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, 1116ccd979bdSMark Fasheh "ocfs2rec-%d", osb->osb_id); 1117ccd979bdSMark Fasheh if (IS_ERR(osb->recovery_thread_task)) { 1118ccd979bdSMark Fasheh mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); 1119ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 1120ccd979bdSMark Fasheh } 1121ccd979bdSMark Fasheh 1122ccd979bdSMark Fasheh out: 1123ccd979bdSMark Fasheh up(&osb->recovery_lock); 1124ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 1125ccd979bdSMark Fasheh 1126ccd979bdSMark Fasheh mlog_exit_void(); 1127ccd979bdSMark Fasheh } 1128ccd979bdSMark Fasheh 1129ccd979bdSMark Fasheh /* Does the actual journal replay and marks the journal inode as 1130ccd979bdSMark Fasheh * clean. Will only replay if the journal inode is marked dirty. */ 1131ccd979bdSMark Fasheh static int ocfs2_replay_journal(struct ocfs2_super *osb, 1132ccd979bdSMark Fasheh int node_num, 1133ccd979bdSMark Fasheh int slot_num) 1134ccd979bdSMark Fasheh { 1135ccd979bdSMark Fasheh int status; 1136ccd979bdSMark Fasheh int got_lock = 0; 1137ccd979bdSMark Fasheh unsigned int flags; 1138ccd979bdSMark Fasheh struct inode *inode = NULL; 1139ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 1140ccd979bdSMark Fasheh journal_t *journal = NULL; 1141ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1142ccd979bdSMark Fasheh 1143ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1144ccd979bdSMark Fasheh slot_num); 1145ccd979bdSMark Fasheh if (inode == NULL) { 1146ccd979bdSMark Fasheh status = -EACCES; 1147ccd979bdSMark Fasheh mlog_errno(status); 1148ccd979bdSMark Fasheh goto done; 1149ccd979bdSMark Fasheh } 1150ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1151ccd979bdSMark Fasheh status = -EACCES; 1152ccd979bdSMark Fasheh iput(inode); 1153ccd979bdSMark Fasheh inode = NULL; 1154ccd979bdSMark Fasheh mlog_errno(status); 1155ccd979bdSMark Fasheh goto done; 1156ccd979bdSMark Fasheh } 1157ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1158ccd979bdSMark Fasheh 1159ccd979bdSMark Fasheh status = ocfs2_meta_lock_full(inode, NULL, &bh, 1, 1160ccd979bdSMark Fasheh OCFS2_META_LOCK_RECOVERY); 1161ccd979bdSMark Fasheh if (status < 0) { 1162ccd979bdSMark Fasheh mlog(0, "status returned from ocfs2_meta_lock=%d\n", status); 1163ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 1164ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not lock journal!\n"); 1165ccd979bdSMark Fasheh goto done; 1166ccd979bdSMark Fasheh } 1167ccd979bdSMark Fasheh got_lock = 1; 1168ccd979bdSMark Fasheh 1169ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *) bh->b_data; 1170ccd979bdSMark Fasheh 1171ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1172ccd979bdSMark Fasheh 1173ccd979bdSMark Fasheh if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { 1174ccd979bdSMark Fasheh mlog(0, "No recovery required for node %d\n", node_num); 1175ccd979bdSMark Fasheh goto done; 1176ccd979bdSMark Fasheh } 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh mlog(ML_NOTICE, "Recovering node %d from slot %d on device (%u,%u)\n", 1179ccd979bdSMark Fasheh node_num, slot_num, 1180ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 1181ccd979bdSMark Fasheh 1182ccd979bdSMark Fasheh OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); 1183ccd979bdSMark Fasheh 1184ccd979bdSMark Fasheh status = ocfs2_force_read_journal(inode); 1185ccd979bdSMark Fasheh if (status < 0) { 1186ccd979bdSMark Fasheh mlog_errno(status); 1187ccd979bdSMark Fasheh goto done; 1188ccd979bdSMark Fasheh } 1189ccd979bdSMark Fasheh 1190ccd979bdSMark Fasheh mlog(0, "calling journal_init_inode\n"); 1191ccd979bdSMark Fasheh journal = journal_init_inode(inode); 1192ccd979bdSMark Fasheh if (journal == NULL) { 1193ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 1194ccd979bdSMark Fasheh status = -EIO; 1195ccd979bdSMark Fasheh goto done; 1196ccd979bdSMark Fasheh } 1197ccd979bdSMark Fasheh 1198ccd979bdSMark Fasheh status = journal_load(journal); 1199ccd979bdSMark Fasheh if (status < 0) { 1200ccd979bdSMark Fasheh mlog_errno(status); 1201ccd979bdSMark Fasheh if (!igrab(inode)) 1202ccd979bdSMark Fasheh BUG(); 1203ccd979bdSMark Fasheh journal_destroy(journal); 1204ccd979bdSMark Fasheh goto done; 1205ccd979bdSMark Fasheh } 1206ccd979bdSMark Fasheh 1207ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal, slot_num); 1208ccd979bdSMark Fasheh 1209ccd979bdSMark Fasheh /* wipe the journal */ 1210ccd979bdSMark Fasheh mlog(0, "flushing the journal.\n"); 1211ccd979bdSMark Fasheh journal_lock_updates(journal); 1212ccd979bdSMark Fasheh status = journal_flush(journal); 1213ccd979bdSMark Fasheh journal_unlock_updates(journal); 1214ccd979bdSMark Fasheh if (status < 0) 1215ccd979bdSMark Fasheh mlog_errno(status); 1216ccd979bdSMark Fasheh 1217ccd979bdSMark Fasheh /* This will mark the node clean */ 1218ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1219ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 1220ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 1221ccd979bdSMark Fasheh 1222ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, inode); 1223ccd979bdSMark Fasheh if (status < 0) 1224ccd979bdSMark Fasheh mlog_errno(status); 1225ccd979bdSMark Fasheh 1226ccd979bdSMark Fasheh if (!igrab(inode)) 1227ccd979bdSMark Fasheh BUG(); 1228ccd979bdSMark Fasheh 1229ccd979bdSMark Fasheh journal_destroy(journal); 1230ccd979bdSMark Fasheh 1231ccd979bdSMark Fasheh done: 1232ccd979bdSMark Fasheh /* drop the lock on this nodes journal */ 1233ccd979bdSMark Fasheh if (got_lock) 1234ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 1235ccd979bdSMark Fasheh 1236ccd979bdSMark Fasheh if (inode) 1237ccd979bdSMark Fasheh iput(inode); 1238ccd979bdSMark Fasheh 1239ccd979bdSMark Fasheh if (bh) 1240ccd979bdSMark Fasheh brelse(bh); 1241ccd979bdSMark Fasheh 1242ccd979bdSMark Fasheh mlog_exit(status); 1243ccd979bdSMark Fasheh return status; 1244ccd979bdSMark Fasheh } 1245ccd979bdSMark Fasheh 1246ccd979bdSMark Fasheh /* 1247ccd979bdSMark Fasheh * Do the most important parts of node recovery: 1248ccd979bdSMark Fasheh * - Replay it's journal 1249ccd979bdSMark Fasheh * - Stamp a clean local allocator file 1250ccd979bdSMark Fasheh * - Stamp a clean truncate log 1251ccd979bdSMark Fasheh * - Mark the node clean 1252ccd979bdSMark Fasheh * 1253ccd979bdSMark Fasheh * If this function completes without error, a node in OCFS2 can be 1254ccd979bdSMark Fasheh * said to have been safely recovered. As a result, failure during the 1255ccd979bdSMark Fasheh * second part of a nodes recovery process (local alloc recovery) is 1256ccd979bdSMark Fasheh * far less concerning. 1257ccd979bdSMark Fasheh */ 1258ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 1259ccd979bdSMark Fasheh int node_num) 1260ccd979bdSMark Fasheh { 1261ccd979bdSMark Fasheh int status = 0; 1262ccd979bdSMark Fasheh int slot_num; 1263ccd979bdSMark Fasheh struct ocfs2_slot_info *si = osb->slot_info; 1264ccd979bdSMark Fasheh struct ocfs2_dinode *la_copy = NULL; 1265ccd979bdSMark Fasheh struct ocfs2_dinode *tl_copy = NULL; 1266ccd979bdSMark Fasheh 1267ccd979bdSMark Fasheh mlog_entry("(node_num=%d, osb->node_num = %d)\n", 1268ccd979bdSMark Fasheh node_num, osb->node_num); 1269ccd979bdSMark Fasheh 1270ccd979bdSMark Fasheh mlog(0, "checking node %d\n", node_num); 1271ccd979bdSMark Fasheh 1272ccd979bdSMark Fasheh /* Should not ever be called to recover ourselves -- in that 1273ccd979bdSMark Fasheh * case we should've called ocfs2_journal_load instead. */ 1274ccd979bdSMark Fasheh if (osb->node_num == node_num) 1275ccd979bdSMark Fasheh BUG(); 1276ccd979bdSMark Fasheh 1277ccd979bdSMark Fasheh slot_num = ocfs2_node_num_to_slot(si, node_num); 1278ccd979bdSMark Fasheh if (slot_num == OCFS2_INVALID_SLOT) { 1279ccd979bdSMark Fasheh status = 0; 1280ccd979bdSMark Fasheh mlog(0, "no slot for this node, so no recovery required.\n"); 1281ccd979bdSMark Fasheh goto done; 1282ccd979bdSMark Fasheh } 1283ccd979bdSMark Fasheh 1284ccd979bdSMark Fasheh mlog(0, "node %d was using slot %d\n", node_num, slot_num); 1285ccd979bdSMark Fasheh 1286ccd979bdSMark Fasheh status = ocfs2_replay_journal(osb, node_num, slot_num); 1287ccd979bdSMark Fasheh if (status < 0) { 1288ccd979bdSMark Fasheh mlog_errno(status); 1289ccd979bdSMark Fasheh goto done; 1290ccd979bdSMark Fasheh } 1291ccd979bdSMark Fasheh 1292ccd979bdSMark Fasheh /* Stamp a clean local alloc file AFTER recovering the journal... */ 1293ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); 1294ccd979bdSMark Fasheh if (status < 0) { 1295ccd979bdSMark Fasheh mlog_errno(status); 1296ccd979bdSMark Fasheh goto done; 1297ccd979bdSMark Fasheh } 1298ccd979bdSMark Fasheh 1299ccd979bdSMark Fasheh /* An error from begin_truncate_log_recovery is not 1300ccd979bdSMark Fasheh * serious enough to warrant halting the rest of 1301ccd979bdSMark Fasheh * recovery. */ 1302ccd979bdSMark Fasheh status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); 1303ccd979bdSMark Fasheh if (status < 0) 1304ccd979bdSMark Fasheh mlog_errno(status); 1305ccd979bdSMark Fasheh 1306ccd979bdSMark Fasheh /* Likewise, this would be a strange but ultimately not so 1307ccd979bdSMark Fasheh * harmful place to get an error... */ 1308ccd979bdSMark Fasheh ocfs2_clear_slot(si, slot_num); 1309ccd979bdSMark Fasheh status = ocfs2_update_disk_slots(osb, si); 1310ccd979bdSMark Fasheh if (status < 0) 1311ccd979bdSMark Fasheh mlog_errno(status); 1312ccd979bdSMark Fasheh 1313ccd979bdSMark Fasheh /* This will kfree the memory pointed to by la_copy and tl_copy */ 1314ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, 1315ccd979bdSMark Fasheh tl_copy); 1316ccd979bdSMark Fasheh 1317ccd979bdSMark Fasheh status = 0; 1318ccd979bdSMark Fasheh done: 1319ccd979bdSMark Fasheh 1320ccd979bdSMark Fasheh mlog_exit(status); 1321ccd979bdSMark Fasheh return status; 1322ccd979bdSMark Fasheh } 1323ccd979bdSMark Fasheh 1324ccd979bdSMark Fasheh /* Test node liveness by trylocking his journal. If we get the lock, 1325ccd979bdSMark Fasheh * we drop it here. Return 0 if we got the lock, -EAGAIN if node is 1326ccd979bdSMark Fasheh * still alive (we couldn't get the lock) and < 0 on error. */ 1327ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 1328ccd979bdSMark Fasheh int slot_num) 1329ccd979bdSMark Fasheh { 1330ccd979bdSMark Fasheh int status, flags; 1331ccd979bdSMark Fasheh struct inode *inode = NULL; 1332ccd979bdSMark Fasheh 1333ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1334ccd979bdSMark Fasheh slot_num); 1335ccd979bdSMark Fasheh if (inode == NULL) { 1336ccd979bdSMark Fasheh mlog(ML_ERROR, "access error\n"); 1337ccd979bdSMark Fasheh status = -EACCES; 1338ccd979bdSMark Fasheh goto bail; 1339ccd979bdSMark Fasheh } 1340ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1341ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 1342ccd979bdSMark Fasheh iput(inode); 1343ccd979bdSMark Fasheh inode = NULL; 1344ccd979bdSMark Fasheh status = -EACCES; 1345ccd979bdSMark Fasheh goto bail; 1346ccd979bdSMark Fasheh } 1347ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1348ccd979bdSMark Fasheh 1349ccd979bdSMark Fasheh flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; 1350ccd979bdSMark Fasheh status = ocfs2_meta_lock_full(inode, NULL, NULL, 1, flags); 1351ccd979bdSMark Fasheh if (status < 0) { 1352ccd979bdSMark Fasheh if (status != -EAGAIN) 1353ccd979bdSMark Fasheh mlog_errno(status); 1354ccd979bdSMark Fasheh goto bail; 1355ccd979bdSMark Fasheh } 1356ccd979bdSMark Fasheh 1357ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 1358ccd979bdSMark Fasheh bail: 1359ccd979bdSMark Fasheh if (inode) 1360ccd979bdSMark Fasheh iput(inode); 1361ccd979bdSMark Fasheh 1362ccd979bdSMark Fasheh return status; 1363ccd979bdSMark Fasheh } 1364ccd979bdSMark Fasheh 1365ccd979bdSMark Fasheh /* Call this underneath ocfs2_super_lock. It also assumes that the 1366ccd979bdSMark Fasheh * slot info struct has been updated from disk. */ 1367ccd979bdSMark Fasheh int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) 1368ccd979bdSMark Fasheh { 1369ccd979bdSMark Fasheh int status, i, node_num; 1370ccd979bdSMark Fasheh struct ocfs2_slot_info *si = osb->slot_info; 1371ccd979bdSMark Fasheh 1372ccd979bdSMark Fasheh /* This is called with the super block cluster lock, so we 1373ccd979bdSMark Fasheh * know that the slot map can't change underneath us. */ 1374ccd979bdSMark Fasheh 1375ccd979bdSMark Fasheh spin_lock(&si->si_lock); 1376ccd979bdSMark Fasheh for(i = 0; i < si->si_num_slots; i++) { 1377ccd979bdSMark Fasheh if (i == osb->slot_num) 1378ccd979bdSMark Fasheh continue; 1379ccd979bdSMark Fasheh if (ocfs2_is_empty_slot(si, i)) 1380ccd979bdSMark Fasheh continue; 1381ccd979bdSMark Fasheh 1382ccd979bdSMark Fasheh node_num = si->si_global_node_nums[i]; 1383ccd979bdSMark Fasheh if (ocfs2_node_map_test_bit(osb, &osb->recovery_map, node_num)) 1384ccd979bdSMark Fasheh continue; 1385ccd979bdSMark Fasheh spin_unlock(&si->si_lock); 1386ccd979bdSMark Fasheh 1387ccd979bdSMark Fasheh /* Ok, we have a slot occupied by another node which 1388ccd979bdSMark Fasheh * is not in the recovery map. We trylock his journal 1389ccd979bdSMark Fasheh * file here to test if he's alive. */ 1390ccd979bdSMark Fasheh status = ocfs2_trylock_journal(osb, i); 1391ccd979bdSMark Fasheh if (!status) { 1392ccd979bdSMark Fasheh /* Since we're called from mount, we know that 1393ccd979bdSMark Fasheh * the recovery thread can't race us on 1394ccd979bdSMark Fasheh * setting / checking the recovery bits. */ 1395ccd979bdSMark Fasheh ocfs2_recovery_thread(osb, node_num); 1396ccd979bdSMark Fasheh } else if ((status < 0) && (status != -EAGAIN)) { 1397ccd979bdSMark Fasheh mlog_errno(status); 1398ccd979bdSMark Fasheh goto bail; 1399ccd979bdSMark Fasheh } 1400ccd979bdSMark Fasheh 1401ccd979bdSMark Fasheh spin_lock(&si->si_lock); 1402ccd979bdSMark Fasheh } 1403ccd979bdSMark Fasheh spin_unlock(&si->si_lock); 1404ccd979bdSMark Fasheh 1405ccd979bdSMark Fasheh status = 0; 1406ccd979bdSMark Fasheh bail: 1407ccd979bdSMark Fasheh mlog_exit(status); 1408ccd979bdSMark Fasheh return status; 1409ccd979bdSMark Fasheh } 1410ccd979bdSMark Fasheh 1411ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 1412ccd979bdSMark Fasheh int slot) 1413ccd979bdSMark Fasheh { 1414ccd979bdSMark Fasheh int status = 0; 1415ccd979bdSMark Fasheh int have_disk_lock = 0; 1416ccd979bdSMark Fasheh struct inode *inode = NULL; 1417ccd979bdSMark Fasheh struct inode *iter; 1418ccd979bdSMark Fasheh struct inode *orphan_dir_inode = NULL; 1419ccd979bdSMark Fasheh unsigned long offset, blk, local; 1420ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1421ccd979bdSMark Fasheh struct ocfs2_dir_entry *de; 1422ccd979bdSMark Fasheh struct super_block *sb = osb->sb; 1423ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 1424ccd979bdSMark Fasheh 1425ccd979bdSMark Fasheh mlog(0, "Recover inodes from orphan dir in slot %d\n", slot); 1426ccd979bdSMark Fasheh 1427ccd979bdSMark Fasheh orphan_dir_inode = ocfs2_get_system_file_inode(osb, 1428ccd979bdSMark Fasheh ORPHAN_DIR_SYSTEM_INODE, 1429ccd979bdSMark Fasheh slot); 1430ccd979bdSMark Fasheh if (!orphan_dir_inode) { 1431ccd979bdSMark Fasheh status = -ENOENT; 1432ccd979bdSMark Fasheh mlog_errno(status); 1433ccd979bdSMark Fasheh goto out; 1434ccd979bdSMark Fasheh } 1435ccd979bdSMark Fasheh 1436ccd979bdSMark Fasheh down(&orphan_dir_inode->i_sem); 1437ccd979bdSMark Fasheh status = ocfs2_meta_lock(orphan_dir_inode, NULL, NULL, 0); 1438ccd979bdSMark Fasheh if (status < 0) { 1439ccd979bdSMark Fasheh up(&orphan_dir_inode->i_sem); 1440ccd979bdSMark Fasheh mlog_errno(status); 1441ccd979bdSMark Fasheh goto out; 1442ccd979bdSMark Fasheh } 1443ccd979bdSMark Fasheh have_disk_lock = 1; 1444ccd979bdSMark Fasheh 1445ccd979bdSMark Fasheh offset = 0; 1446ccd979bdSMark Fasheh iter = NULL; 1447ccd979bdSMark Fasheh while(offset < i_size_read(orphan_dir_inode)) { 1448ccd979bdSMark Fasheh blk = offset >> sb->s_blocksize_bits; 1449ccd979bdSMark Fasheh 1450ccd979bdSMark Fasheh bh = ocfs2_bread(orphan_dir_inode, blk, &status, 0); 1451ccd979bdSMark Fasheh if (!bh) 1452ccd979bdSMark Fasheh status = -EINVAL; 1453ccd979bdSMark Fasheh if (status < 0) { 1454ccd979bdSMark Fasheh up(&orphan_dir_inode->i_sem); 1455ccd979bdSMark Fasheh if (bh) 1456ccd979bdSMark Fasheh brelse(bh); 1457ccd979bdSMark Fasheh mlog_errno(status); 1458ccd979bdSMark Fasheh goto out; 1459ccd979bdSMark Fasheh } 1460ccd979bdSMark Fasheh 1461ccd979bdSMark Fasheh local = 0; 1462ccd979bdSMark Fasheh while(offset < i_size_read(orphan_dir_inode) 1463ccd979bdSMark Fasheh && local < sb->s_blocksize) { 1464ccd979bdSMark Fasheh de = (struct ocfs2_dir_entry *) (bh->b_data + local); 1465ccd979bdSMark Fasheh 1466ccd979bdSMark Fasheh if (!ocfs2_check_dir_entry(orphan_dir_inode, 1467ccd979bdSMark Fasheh de, bh, local)) { 1468ccd979bdSMark Fasheh up(&orphan_dir_inode->i_sem); 1469ccd979bdSMark Fasheh status = -EINVAL; 1470ccd979bdSMark Fasheh mlog_errno(status); 1471ccd979bdSMark Fasheh brelse(bh); 1472ccd979bdSMark Fasheh goto out; 1473ccd979bdSMark Fasheh } 1474ccd979bdSMark Fasheh 1475ccd979bdSMark Fasheh local += le16_to_cpu(de->rec_len); 1476ccd979bdSMark Fasheh offset += le16_to_cpu(de->rec_len); 1477ccd979bdSMark Fasheh 1478ccd979bdSMark Fasheh /* I guess we silently fail on no inode? */ 1479ccd979bdSMark Fasheh if (!le64_to_cpu(de->inode)) 1480ccd979bdSMark Fasheh continue; 1481ccd979bdSMark Fasheh if (de->file_type > OCFS2_FT_MAX) { 1482ccd979bdSMark Fasheh mlog(ML_ERROR, 1483ccd979bdSMark Fasheh "block %llu contains invalid de: " 1484ccd979bdSMark Fasheh "inode = %"MLFu64", rec_len = %u, " 1485ccd979bdSMark Fasheh "name_len = %u, file_type = %u, " 1486ccd979bdSMark Fasheh "name='%.*s'\n", 1487ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr, 1488ccd979bdSMark Fasheh le64_to_cpu(de->inode), 1489ccd979bdSMark Fasheh le16_to_cpu(de->rec_len), 1490ccd979bdSMark Fasheh de->name_len, 1491ccd979bdSMark Fasheh de->file_type, 1492ccd979bdSMark Fasheh de->name_len, 1493ccd979bdSMark Fasheh de->name); 1494ccd979bdSMark Fasheh continue; 1495ccd979bdSMark Fasheh } 1496ccd979bdSMark Fasheh if (de->name_len == 1 && !strncmp(".", de->name, 1)) 1497ccd979bdSMark Fasheh continue; 1498ccd979bdSMark Fasheh if (de->name_len == 2 && !strncmp("..", de->name, 2)) 1499ccd979bdSMark Fasheh continue; 1500ccd979bdSMark Fasheh 1501ccd979bdSMark Fasheh iter = ocfs2_iget(osb, le64_to_cpu(de->inode)); 1502ccd979bdSMark Fasheh if (IS_ERR(iter)) 1503ccd979bdSMark Fasheh continue; 1504ccd979bdSMark Fasheh 1505ccd979bdSMark Fasheh mlog(0, "queue orphan %"MLFu64"\n", 1506ccd979bdSMark Fasheh OCFS2_I(iter)->ip_blkno); 1507ccd979bdSMark Fasheh OCFS2_I(iter)->ip_next_orphan = inode; 1508ccd979bdSMark Fasheh inode = iter; 1509ccd979bdSMark Fasheh } 1510ccd979bdSMark Fasheh brelse(bh); 1511ccd979bdSMark Fasheh } 1512ccd979bdSMark Fasheh up(&orphan_dir_inode->i_sem); 1513ccd979bdSMark Fasheh 1514ccd979bdSMark Fasheh ocfs2_meta_unlock(orphan_dir_inode, 0); 1515ccd979bdSMark Fasheh have_disk_lock = 0; 1516ccd979bdSMark Fasheh 1517ccd979bdSMark Fasheh iput(orphan_dir_inode); 1518ccd979bdSMark Fasheh orphan_dir_inode = NULL; 1519ccd979bdSMark Fasheh 1520ccd979bdSMark Fasheh while (inode) { 1521ccd979bdSMark Fasheh oi = OCFS2_I(inode); 1522ccd979bdSMark Fasheh mlog(0, "iput orphan %"MLFu64"\n", oi->ip_blkno); 1523ccd979bdSMark Fasheh 1524ccd979bdSMark Fasheh iter = oi->ip_next_orphan; 1525ccd979bdSMark Fasheh 1526ccd979bdSMark Fasheh spin_lock(&oi->ip_lock); 1527ccd979bdSMark Fasheh /* Delete voting may have set these on the assumption 1528ccd979bdSMark Fasheh * that the other node would wipe them successfully. 1529ccd979bdSMark Fasheh * If they are still in the node's orphan dir, we need 1530ccd979bdSMark Fasheh * to reset that state. */ 1531ccd979bdSMark Fasheh oi->ip_flags &= ~(OCFS2_INODE_DELETED|OCFS2_INODE_SKIP_DELETE); 1532ccd979bdSMark Fasheh 1533ccd979bdSMark Fasheh /* Set the proper information to get us going into 1534ccd979bdSMark Fasheh * ocfs2_delete_inode. */ 1535ccd979bdSMark Fasheh oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; 1536ccd979bdSMark Fasheh oi->ip_orphaned_slot = slot; 1537ccd979bdSMark Fasheh spin_unlock(&oi->ip_lock); 1538ccd979bdSMark Fasheh 1539ccd979bdSMark Fasheh iput(inode); 1540ccd979bdSMark Fasheh 1541ccd979bdSMark Fasheh inode = iter; 1542ccd979bdSMark Fasheh } 1543ccd979bdSMark Fasheh 1544ccd979bdSMark Fasheh out: 1545ccd979bdSMark Fasheh if (have_disk_lock) 1546ccd979bdSMark Fasheh ocfs2_meta_unlock(orphan_dir_inode, 0); 1547ccd979bdSMark Fasheh 1548ccd979bdSMark Fasheh if (orphan_dir_inode) 1549ccd979bdSMark Fasheh iput(orphan_dir_inode); 1550ccd979bdSMark Fasheh 1551ccd979bdSMark Fasheh return status; 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 1587ccd979bdSMark Fasheh wait_event_interruptible_timeout(osb->checkpoint_event, 1588ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) 1589ccd979bdSMark Fasheh || kthread_should_stop(), 1590ccd979bdSMark Fasheh OCFS2_CHECKPOINT_INTERVAL); 1591ccd979bdSMark Fasheh 1592ccd979bdSMark Fasheh status = ocfs2_commit_cache(osb); 1593ccd979bdSMark Fasheh if (status < 0) 1594ccd979bdSMark Fasheh mlog_errno(status); 1595ccd979bdSMark Fasheh 1596ccd979bdSMark Fasheh if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ 1597ccd979bdSMark Fasheh mlog(ML_KTHREAD, 1598ccd979bdSMark Fasheh "commit_thread: %u transactions pending on " 1599ccd979bdSMark Fasheh "shutdown\n", 1600ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans)); 1601ccd979bdSMark Fasheh } 1602ccd979bdSMark Fasheh } 1603ccd979bdSMark Fasheh 1604ccd979bdSMark Fasheh return 0; 1605ccd979bdSMark Fasheh } 1606ccd979bdSMark Fasheh 1607ccd979bdSMark Fasheh /* Look for a dirty journal without taking any cluster locks. Used for 1608ccd979bdSMark Fasheh * hard readonly access to determine whether the file system journals 1609ccd979bdSMark Fasheh * require recovery. */ 1610ccd979bdSMark Fasheh int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) 1611ccd979bdSMark Fasheh { 1612ccd979bdSMark Fasheh int ret = 0; 1613ccd979bdSMark Fasheh unsigned int slot; 1614ccd979bdSMark Fasheh struct buffer_head *di_bh; 1615ccd979bdSMark Fasheh struct ocfs2_dinode *di; 1616ccd979bdSMark Fasheh struct inode *journal = NULL; 1617ccd979bdSMark Fasheh 1618ccd979bdSMark Fasheh for(slot = 0; slot < osb->max_slots; slot++) { 1619ccd979bdSMark Fasheh journal = ocfs2_get_system_file_inode(osb, 1620ccd979bdSMark Fasheh JOURNAL_SYSTEM_INODE, 1621ccd979bdSMark Fasheh slot); 1622ccd979bdSMark Fasheh if (!journal || is_bad_inode(journal)) { 1623ccd979bdSMark Fasheh ret = -EACCES; 1624ccd979bdSMark Fasheh mlog_errno(ret); 1625ccd979bdSMark Fasheh goto out; 1626ccd979bdSMark Fasheh } 1627ccd979bdSMark Fasheh 1628ccd979bdSMark Fasheh di_bh = NULL; 1629ccd979bdSMark Fasheh ret = ocfs2_read_block(osb, OCFS2_I(journal)->ip_blkno, &di_bh, 1630ccd979bdSMark Fasheh 0, journal); 1631ccd979bdSMark Fasheh if (ret < 0) { 1632ccd979bdSMark Fasheh mlog_errno(ret); 1633ccd979bdSMark Fasheh goto out; 1634ccd979bdSMark Fasheh } 1635ccd979bdSMark Fasheh 1636ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) di_bh->b_data; 1637ccd979bdSMark Fasheh 1638ccd979bdSMark Fasheh if (le32_to_cpu(di->id1.journal1.ij_flags) & 1639ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL) 1640ccd979bdSMark Fasheh ret = -EROFS; 1641ccd979bdSMark Fasheh 1642ccd979bdSMark Fasheh brelse(di_bh); 1643ccd979bdSMark Fasheh if (ret) 1644ccd979bdSMark Fasheh break; 1645ccd979bdSMark Fasheh } 1646ccd979bdSMark Fasheh 1647ccd979bdSMark Fasheh out: 1648ccd979bdSMark Fasheh if (journal) 1649ccd979bdSMark Fasheh iput(journal); 1650ccd979bdSMark Fasheh 1651ccd979bdSMark Fasheh return ret; 1652ccd979bdSMark Fasheh } 1653