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 "vote.h" 48ccd979bdSMark Fasheh #include "sysfile.h" 49ccd979bdSMark Fasheh 50ccd979bdSMark Fasheh #include "buffer_head_io.h" 51ccd979bdSMark Fasheh 5234af946aSIngo Molnar DEFINE_SPINLOCK(trans_inc_lock); 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 int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 61ccd979bdSMark Fasheh int dirty); 62ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 63ccd979bdSMark Fasheh int slot_num); 64ccd979bdSMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 65ccd979bdSMark Fasheh int slot); 66ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg); 67ccd979bdSMark Fasheh 68ccd979bdSMark Fasheh static int ocfs2_commit_cache(struct ocfs2_super *osb) 69ccd979bdSMark Fasheh { 70ccd979bdSMark Fasheh int status = 0; 71ccd979bdSMark Fasheh unsigned int flushed; 72ccd979bdSMark Fasheh unsigned long old_id; 73ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 74ccd979bdSMark Fasheh 75ccd979bdSMark Fasheh mlog_entry_void(); 76ccd979bdSMark Fasheh 77ccd979bdSMark Fasheh journal = osb->journal; 78ccd979bdSMark Fasheh 79ccd979bdSMark Fasheh /* Flush all pending commits and checkpoint the journal. */ 80ccd979bdSMark Fasheh down_write(&journal->j_trans_barrier); 81ccd979bdSMark Fasheh 82ccd979bdSMark Fasheh if (atomic_read(&journal->j_num_trans) == 0) { 83ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 84ccd979bdSMark Fasheh mlog(0, "No transactions for me to flush!\n"); 85ccd979bdSMark Fasheh goto finally; 86ccd979bdSMark Fasheh } 87ccd979bdSMark Fasheh 88ccd979bdSMark Fasheh journal_lock_updates(journal->j_journal); 89ccd979bdSMark Fasheh status = journal_flush(journal->j_journal); 90ccd979bdSMark Fasheh journal_unlock_updates(journal->j_journal); 91ccd979bdSMark Fasheh if (status < 0) { 92ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 93ccd979bdSMark Fasheh mlog_errno(status); 94ccd979bdSMark Fasheh goto finally; 95ccd979bdSMark Fasheh } 96ccd979bdSMark Fasheh 97ccd979bdSMark Fasheh old_id = ocfs2_inc_trans_id(journal); 98ccd979bdSMark Fasheh 99ccd979bdSMark Fasheh flushed = atomic_read(&journal->j_num_trans); 100ccd979bdSMark Fasheh atomic_set(&journal->j_num_trans, 0); 101ccd979bdSMark Fasheh up_write(&journal->j_trans_barrier); 102ccd979bdSMark Fasheh 103ccd979bdSMark Fasheh mlog(0, "commit_thread: flushed transaction %lu (%u handles)\n", 104ccd979bdSMark Fasheh journal->j_trans_id, flushed); 105ccd979bdSMark Fasheh 106ccd979bdSMark Fasheh ocfs2_kick_vote_thread(osb); 107ccd979bdSMark Fasheh wake_up(&journal->j_checkpointed); 108ccd979bdSMark Fasheh finally: 109ccd979bdSMark Fasheh mlog_exit(status); 110ccd979bdSMark Fasheh return status; 111ccd979bdSMark Fasheh } 112ccd979bdSMark Fasheh 113ccd979bdSMark Fasheh /* pass it NULL and it will allocate a new handle object for you. If 114ccd979bdSMark Fasheh * you pass it a handle however, it may still return error, in which 115ccd979bdSMark Fasheh * case it has free'd the passed handle for you. */ 1161fabe148SMark Fasheh handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs) 117ccd979bdSMark Fasheh { 118ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 1191fabe148SMark Fasheh handle_t *handle; 120ccd979bdSMark Fasheh 121ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb || !osb->journal->j_journal); 122ccd979bdSMark Fasheh 12365eff9ccSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 12465eff9ccSMark Fasheh return ERR_PTR(-EROFS); 125ccd979bdSMark Fasheh 126ccd979bdSMark Fasheh BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE); 127ccd979bdSMark Fasheh BUG_ON(max_buffs <= 0); 128ccd979bdSMark Fasheh 129ccd979bdSMark Fasheh /* JBD might support this, but our journalling code doesn't yet. */ 130ccd979bdSMark Fasheh if (journal_current_handle()) { 131ccd979bdSMark Fasheh mlog(ML_ERROR, "Recursive transaction attempted!\n"); 132ccd979bdSMark Fasheh BUG(); 133ccd979bdSMark Fasheh } 134ccd979bdSMark Fasheh 135ccd979bdSMark Fasheh down_read(&osb->journal->j_trans_barrier); 136ccd979bdSMark Fasheh 1371fabe148SMark Fasheh handle = journal_start(journal, max_buffs); 1381fabe148SMark Fasheh if (IS_ERR(handle)) { 139ccd979bdSMark Fasheh up_read(&osb->journal->j_trans_barrier); 140ccd979bdSMark Fasheh 1411fabe148SMark Fasheh mlog_errno(PTR_ERR(handle)); 142ccd979bdSMark Fasheh 143ccd979bdSMark Fasheh if (is_journal_aborted(journal)) { 144ccd979bdSMark Fasheh ocfs2_abort(osb->sb, "Detected aborted journal"); 1451fabe148SMark Fasheh handle = ERR_PTR(-EROFS); 146ccd979bdSMark Fasheh } 147c271c5c2SSunil Mushran } else { 148c271c5c2SSunil Mushran if (!ocfs2_mount_local(osb)) 149ccd979bdSMark Fasheh atomic_inc(&(osb->journal->j_num_trans)); 150c271c5c2SSunil Mushran } 151ccd979bdSMark Fasheh 152ccd979bdSMark Fasheh return handle; 153ccd979bdSMark Fasheh } 154ccd979bdSMark Fasheh 1551fabe148SMark Fasheh int ocfs2_commit_trans(struct ocfs2_super *osb, 1561fabe148SMark Fasheh handle_t *handle) 157ccd979bdSMark Fasheh { 1581fabe148SMark Fasheh int ret; 15902dc1af4SMark Fasheh struct ocfs2_journal *journal = osb->journal; 160ccd979bdSMark Fasheh 161ccd979bdSMark Fasheh BUG_ON(!handle); 162ccd979bdSMark Fasheh 1631fabe148SMark Fasheh ret = journal_stop(handle); 1641fabe148SMark Fasheh if (ret < 0) 1651fabe148SMark Fasheh mlog_errno(ret); 166ccd979bdSMark Fasheh 167ccd979bdSMark Fasheh up_read(&journal->j_trans_barrier); 168ccd979bdSMark Fasheh 1691fabe148SMark Fasheh return ret; 170ccd979bdSMark Fasheh } 171ccd979bdSMark Fasheh 172ccd979bdSMark Fasheh /* 173ccd979bdSMark Fasheh * 'nblocks' is what you want to add to the current 174ccd979bdSMark Fasheh * transaction. extend_trans will either extend the current handle by 175ccd979bdSMark Fasheh * nblocks, or commit it and start a new one with nblocks credits. 176ccd979bdSMark Fasheh * 177ccd979bdSMark Fasheh * WARNING: This will not release any semaphores or disk locks taken 178ccd979bdSMark Fasheh * during the transaction, so make sure they were taken *before* 179ccd979bdSMark Fasheh * start_trans or we'll have ordering deadlocks. 180ccd979bdSMark Fasheh * 181ccd979bdSMark Fasheh * WARNING2: Note that we do *not* drop j_trans_barrier here. This is 182ccd979bdSMark Fasheh * good because transaction ids haven't yet been recorded on the 183ccd979bdSMark Fasheh * cluster locks associated with this handle. 184ccd979bdSMark Fasheh */ 1851fc58146SMark Fasheh int ocfs2_extend_trans(handle_t *handle, int nblocks) 186ccd979bdSMark Fasheh { 187ccd979bdSMark Fasheh int status; 188ccd979bdSMark Fasheh 189ccd979bdSMark Fasheh BUG_ON(!handle); 190ccd979bdSMark Fasheh BUG_ON(!nblocks); 191ccd979bdSMark Fasheh 192ccd979bdSMark Fasheh mlog_entry_void(); 193ccd979bdSMark Fasheh 194ccd979bdSMark Fasheh mlog(0, "Trying to extend transaction by %d blocks\n", nblocks); 195ccd979bdSMark Fasheh 1960879c584SMark Fasheh #ifdef OCFS2_DEBUG_FS 1970879c584SMark Fasheh status = 1; 1980879c584SMark Fasheh #else 1991fc58146SMark Fasheh status = journal_extend(handle, nblocks); 200ccd979bdSMark Fasheh if (status < 0) { 201ccd979bdSMark Fasheh mlog_errno(status); 202ccd979bdSMark Fasheh goto bail; 203ccd979bdSMark Fasheh } 2040879c584SMark Fasheh #endif 205ccd979bdSMark Fasheh 206ccd979bdSMark Fasheh if (status > 0) { 207ccd979bdSMark Fasheh mlog(0, "journal_extend failed, trying journal_restart\n"); 2081fc58146SMark Fasheh status = journal_restart(handle, nblocks); 209ccd979bdSMark Fasheh if (status < 0) { 210ccd979bdSMark Fasheh mlog_errno(status); 211ccd979bdSMark Fasheh goto bail; 212ccd979bdSMark Fasheh } 21301ddf1e1SMark Fasheh } 214ccd979bdSMark Fasheh 215ccd979bdSMark Fasheh status = 0; 216ccd979bdSMark Fasheh bail: 217ccd979bdSMark Fasheh 218ccd979bdSMark Fasheh mlog_exit(status); 219ccd979bdSMark Fasheh return status; 220ccd979bdSMark Fasheh } 221ccd979bdSMark Fasheh 2221fabe148SMark Fasheh int ocfs2_journal_access(handle_t *handle, 223ccd979bdSMark Fasheh struct inode *inode, 224ccd979bdSMark Fasheh struct buffer_head *bh, 225ccd979bdSMark Fasheh int type) 226ccd979bdSMark Fasheh { 227ccd979bdSMark Fasheh int status; 228ccd979bdSMark Fasheh 229ccd979bdSMark Fasheh BUG_ON(!inode); 230ccd979bdSMark Fasheh BUG_ON(!handle); 231ccd979bdSMark Fasheh BUG_ON(!bh); 232ccd979bdSMark Fasheh 233205f87f6SBadari Pulavarty mlog_entry("bh->b_blocknr=%llu, type=%d (\"%s\"), bh->b_size = %zu\n", 234ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr, type, 235ccd979bdSMark Fasheh (type == OCFS2_JOURNAL_ACCESS_CREATE) ? 236ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_CREATE" : 237ccd979bdSMark Fasheh "OCFS2_JOURNAL_ACCESS_WRITE", 238ccd979bdSMark Fasheh bh->b_size); 239ccd979bdSMark Fasheh 240ccd979bdSMark Fasheh /* we can safely remove this assertion after testing. */ 241ccd979bdSMark Fasheh if (!buffer_uptodate(bh)) { 242ccd979bdSMark Fasheh mlog(ML_ERROR, "giving me a buffer that's not uptodate!\n"); 243ccd979bdSMark Fasheh mlog(ML_ERROR, "b_blocknr=%llu\n", 244ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 245ccd979bdSMark Fasheh BUG(); 246ccd979bdSMark Fasheh } 247ccd979bdSMark Fasheh 248ccd979bdSMark Fasheh /* Set the current transaction information on the inode so 249ccd979bdSMark Fasheh * that the locking code knows whether it can drop it's locks 250ccd979bdSMark Fasheh * on this inode or not. We're protected from the commit 251ccd979bdSMark Fasheh * thread updating the current transaction id until 252ccd979bdSMark Fasheh * ocfs2_commit_trans() because ocfs2_start_trans() took 253ccd979bdSMark Fasheh * j_trans_barrier for us. */ 254ccd979bdSMark Fasheh ocfs2_set_inode_lock_trans(OCFS2_SB(inode->i_sb)->journal, inode); 255ccd979bdSMark Fasheh 256251b6eccSMark Fasheh mutex_lock(&OCFS2_I(inode)->ip_io_mutex); 257ccd979bdSMark Fasheh switch (type) { 258ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_CREATE: 259ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_WRITE: 2601fabe148SMark Fasheh status = journal_get_write_access(handle, bh); 261ccd979bdSMark Fasheh break; 262ccd979bdSMark Fasheh 263ccd979bdSMark Fasheh case OCFS2_JOURNAL_ACCESS_UNDO: 2641fabe148SMark Fasheh status = journal_get_undo_access(handle, bh); 265ccd979bdSMark Fasheh break; 266ccd979bdSMark Fasheh 267ccd979bdSMark Fasheh default: 268ccd979bdSMark Fasheh status = -EINVAL; 269ccd979bdSMark Fasheh mlog(ML_ERROR, "Uknown access type!\n"); 270ccd979bdSMark Fasheh } 271251b6eccSMark Fasheh mutex_unlock(&OCFS2_I(inode)->ip_io_mutex); 272ccd979bdSMark Fasheh 273ccd979bdSMark Fasheh if (status < 0) 274ccd979bdSMark Fasheh mlog(ML_ERROR, "Error %d getting %d access to buffer!\n", 275ccd979bdSMark Fasheh status, type); 276ccd979bdSMark Fasheh 277ccd979bdSMark Fasheh mlog_exit(status); 278ccd979bdSMark Fasheh return status; 279ccd979bdSMark Fasheh } 280ccd979bdSMark Fasheh 2811fabe148SMark Fasheh int ocfs2_journal_dirty(handle_t *handle, 282ccd979bdSMark Fasheh struct buffer_head *bh) 283ccd979bdSMark Fasheh { 284ccd979bdSMark Fasheh int status; 285ccd979bdSMark Fasheh 286ccd979bdSMark Fasheh mlog_entry("(bh->b_blocknr=%llu)\n", 287ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 288ccd979bdSMark Fasheh 2891fabe148SMark Fasheh status = journal_dirty_metadata(handle, bh); 290ccd979bdSMark Fasheh if (status < 0) 291ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not dirty metadata buffer. " 292ccd979bdSMark Fasheh "(bh->b_blocknr=%llu)\n", 293ccd979bdSMark Fasheh (unsigned long long)bh->b_blocknr); 294ccd979bdSMark Fasheh 295ccd979bdSMark Fasheh mlog_exit(status); 296ccd979bdSMark Fasheh return status; 297ccd979bdSMark Fasheh } 298ccd979bdSMark Fasheh 299ccd979bdSMark Fasheh int ocfs2_journal_dirty_data(handle_t *handle, 300ccd979bdSMark Fasheh struct buffer_head *bh) 301ccd979bdSMark Fasheh { 302ccd979bdSMark Fasheh int err = journal_dirty_data(handle, bh); 303ccd979bdSMark Fasheh if (err) 304ccd979bdSMark Fasheh mlog_errno(err); 305ccd979bdSMark Fasheh /* TODO: When we can handle it, abort the handle and go RO on 306ccd979bdSMark Fasheh * error here. */ 307ccd979bdSMark Fasheh 308ccd979bdSMark Fasheh return err; 309ccd979bdSMark Fasheh } 310ccd979bdSMark Fasheh 311ccd979bdSMark Fasheh #define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * 5) 312ccd979bdSMark Fasheh 313ccd979bdSMark Fasheh void ocfs2_set_journal_params(struct ocfs2_super *osb) 314ccd979bdSMark Fasheh { 315ccd979bdSMark Fasheh journal_t *journal = osb->journal->j_journal; 316ccd979bdSMark Fasheh 317ccd979bdSMark Fasheh spin_lock(&journal->j_state_lock); 318ccd979bdSMark Fasheh journal->j_commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL; 319ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) 320ccd979bdSMark Fasheh journal->j_flags |= JFS_BARRIER; 321ccd979bdSMark Fasheh else 322ccd979bdSMark Fasheh journal->j_flags &= ~JFS_BARRIER; 323ccd979bdSMark Fasheh spin_unlock(&journal->j_state_lock); 324ccd979bdSMark Fasheh } 325ccd979bdSMark Fasheh 326ccd979bdSMark Fasheh int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty) 327ccd979bdSMark Fasheh { 328ccd979bdSMark Fasheh int status = -1; 329ccd979bdSMark Fasheh struct inode *inode = NULL; /* the journal inode */ 330ccd979bdSMark Fasheh journal_t *j_journal = NULL; 331ccd979bdSMark Fasheh struct ocfs2_dinode *di = NULL; 332ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 333ccd979bdSMark Fasheh struct ocfs2_super *osb; 334ccd979bdSMark Fasheh int meta_lock = 0; 335ccd979bdSMark Fasheh 336ccd979bdSMark Fasheh mlog_entry_void(); 337ccd979bdSMark Fasheh 338ccd979bdSMark Fasheh BUG_ON(!journal); 339ccd979bdSMark Fasheh 340ccd979bdSMark Fasheh osb = journal->j_osb; 341ccd979bdSMark Fasheh 342ccd979bdSMark Fasheh /* already have the inode for our journal */ 343ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 344ccd979bdSMark Fasheh osb->slot_num); 345ccd979bdSMark Fasheh if (inode == NULL) { 346ccd979bdSMark Fasheh status = -EACCES; 347ccd979bdSMark Fasheh mlog_errno(status); 348ccd979bdSMark Fasheh goto done; 349ccd979bdSMark Fasheh } 350ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 351ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 352ccd979bdSMark Fasheh iput(inode); 353ccd979bdSMark Fasheh inode = NULL; 354ccd979bdSMark Fasheh status = -EACCES; 355ccd979bdSMark Fasheh goto done; 356ccd979bdSMark Fasheh } 357ccd979bdSMark Fasheh 358ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 359ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count++; 360ccd979bdSMark Fasheh 3616eff5790SMark Fasheh /* Skip recovery waits here - journal inode metadata never 3626eff5790SMark Fasheh * changes in a live cluster so it can be considered an 3636eff5790SMark Fasheh * exception to the rule. */ 3644bcec184SMark Fasheh status = ocfs2_meta_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 365ccd979bdSMark Fasheh if (status < 0) { 366ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 367ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not get lock on journal!\n"); 368ccd979bdSMark Fasheh goto done; 369ccd979bdSMark Fasheh } 370ccd979bdSMark Fasheh 371ccd979bdSMark Fasheh meta_lock = 1; 372ccd979bdSMark Fasheh di = (struct ocfs2_dinode *)bh->b_data; 373ccd979bdSMark Fasheh 374ccd979bdSMark Fasheh if (inode->i_size < OCFS2_MIN_JOURNAL_SIZE) { 375ccd979bdSMark Fasheh mlog(ML_ERROR, "Journal file size (%lld) is too small!\n", 376ccd979bdSMark Fasheh inode->i_size); 377ccd979bdSMark Fasheh status = -EINVAL; 378ccd979bdSMark Fasheh goto done; 379ccd979bdSMark Fasheh } 380ccd979bdSMark Fasheh 381ccd979bdSMark Fasheh mlog(0, "inode->i_size = %lld\n", inode->i_size); 3825515eff8SAndrew Morton mlog(0, "inode->i_blocks = %llu\n", 3835515eff8SAndrew Morton (unsigned long long)inode->i_blocks); 384ccd979bdSMark Fasheh mlog(0, "inode->ip_clusters = %u\n", OCFS2_I(inode)->ip_clusters); 385ccd979bdSMark Fasheh 386ccd979bdSMark Fasheh /* call the kernels journal init function now */ 387ccd979bdSMark Fasheh j_journal = journal_init_inode(inode); 388ccd979bdSMark Fasheh if (j_journal == NULL) { 389ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 390ccd979bdSMark Fasheh status = -EINVAL; 391ccd979bdSMark Fasheh goto done; 392ccd979bdSMark Fasheh } 393ccd979bdSMark Fasheh 394ccd979bdSMark Fasheh mlog(0, "Returned from journal_init_inode\n"); 395ccd979bdSMark Fasheh mlog(0, "j_journal->j_maxlen = %u\n", j_journal->j_maxlen); 396ccd979bdSMark Fasheh 397ccd979bdSMark Fasheh *dirty = (le32_to_cpu(di->id1.journal1.ij_flags) & 398ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL); 399ccd979bdSMark Fasheh 400ccd979bdSMark Fasheh journal->j_journal = j_journal; 401ccd979bdSMark Fasheh journal->j_inode = inode; 402ccd979bdSMark Fasheh journal->j_bh = bh; 403ccd979bdSMark Fasheh 404ccd979bdSMark Fasheh ocfs2_set_journal_params(osb); 405ccd979bdSMark Fasheh 406ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_LOADED; 407ccd979bdSMark Fasheh 408ccd979bdSMark Fasheh status = 0; 409ccd979bdSMark Fasheh done: 410ccd979bdSMark Fasheh if (status < 0) { 411ccd979bdSMark Fasheh if (meta_lock) 412ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 413ccd979bdSMark Fasheh if (bh != NULL) 414ccd979bdSMark Fasheh brelse(bh); 415ccd979bdSMark Fasheh if (inode) { 416ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 417ccd979bdSMark Fasheh iput(inode); 418ccd979bdSMark Fasheh } 419ccd979bdSMark Fasheh } 420ccd979bdSMark Fasheh 421ccd979bdSMark Fasheh mlog_exit(status); 422ccd979bdSMark Fasheh return status; 423ccd979bdSMark Fasheh } 424ccd979bdSMark Fasheh 425ccd979bdSMark Fasheh static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb, 426ccd979bdSMark Fasheh int dirty) 427ccd979bdSMark Fasheh { 428ccd979bdSMark Fasheh int status; 429ccd979bdSMark Fasheh unsigned int flags; 430ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 431ccd979bdSMark Fasheh struct buffer_head *bh = journal->j_bh; 432ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 433ccd979bdSMark Fasheh 434ccd979bdSMark Fasheh mlog_entry_void(); 435ccd979bdSMark Fasheh 436ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *)bh->b_data; 437ccd979bdSMark Fasheh if (!OCFS2_IS_VALID_DINODE(fe)) { 438ccd979bdSMark Fasheh /* This is called from startup/shutdown which will 439ccd979bdSMark Fasheh * handle the errors in a specific manner, so no need 440ccd979bdSMark Fasheh * to call ocfs2_error() here. */ 441b0697053SMark Fasheh mlog(ML_ERROR, "Journal dinode %llu has invalid " 4421ca1a111SMark Fasheh "signature: %.*s", 4431ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(fe->i_blkno), 7, 444b0697053SMark Fasheh fe->i_signature); 445ccd979bdSMark Fasheh status = -EIO; 446ccd979bdSMark Fasheh goto out; 447ccd979bdSMark Fasheh } 448ccd979bdSMark Fasheh 449ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 450ccd979bdSMark Fasheh if (dirty) 451ccd979bdSMark Fasheh flags |= OCFS2_JOURNAL_DIRTY_FL; 452ccd979bdSMark Fasheh else 453ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 454ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 455ccd979bdSMark Fasheh 456ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, journal->j_inode); 457ccd979bdSMark Fasheh if (status < 0) 458ccd979bdSMark Fasheh mlog_errno(status); 459ccd979bdSMark Fasheh 460ccd979bdSMark Fasheh out: 461ccd979bdSMark Fasheh mlog_exit(status); 462ccd979bdSMark Fasheh return status; 463ccd979bdSMark Fasheh } 464ccd979bdSMark Fasheh 465ccd979bdSMark Fasheh /* 466ccd979bdSMark Fasheh * If the journal has been kmalloc'd it needs to be freed after this 467ccd979bdSMark Fasheh * call. 468ccd979bdSMark Fasheh */ 469ccd979bdSMark Fasheh void ocfs2_journal_shutdown(struct ocfs2_super *osb) 470ccd979bdSMark Fasheh { 471ccd979bdSMark Fasheh struct ocfs2_journal *journal = NULL; 472ccd979bdSMark Fasheh int status = 0; 473ccd979bdSMark Fasheh struct inode *inode = NULL; 474ccd979bdSMark Fasheh int num_running_trans = 0; 475ccd979bdSMark Fasheh 476ccd979bdSMark Fasheh mlog_entry_void(); 477ccd979bdSMark Fasheh 478ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb); 479ccd979bdSMark Fasheh 480ccd979bdSMark Fasheh journal = osb->journal; 481ccd979bdSMark Fasheh if (!journal) 482ccd979bdSMark Fasheh goto done; 483ccd979bdSMark Fasheh 484ccd979bdSMark Fasheh inode = journal->j_inode; 485ccd979bdSMark Fasheh 486ccd979bdSMark Fasheh if (journal->j_state != OCFS2_JOURNAL_LOADED) 487ccd979bdSMark Fasheh goto done; 488ccd979bdSMark Fasheh 489ccd979bdSMark Fasheh /* need to inc inode use count as journal_destroy will iput. */ 490ccd979bdSMark Fasheh if (!igrab(inode)) 491ccd979bdSMark Fasheh BUG(); 492ccd979bdSMark Fasheh 493ccd979bdSMark Fasheh num_running_trans = atomic_read(&(osb->journal->j_num_trans)); 494ccd979bdSMark Fasheh if (num_running_trans > 0) 495ccd979bdSMark Fasheh mlog(0, "Shutting down journal: must wait on %d " 496ccd979bdSMark Fasheh "running transactions!\n", 497ccd979bdSMark Fasheh num_running_trans); 498ccd979bdSMark Fasheh 499ccd979bdSMark Fasheh /* Do a commit_cache here. It will flush our journal, *and* 500ccd979bdSMark Fasheh * release any locks that are still held. 501ccd979bdSMark Fasheh * set the SHUTDOWN flag and release the trans lock. 502ccd979bdSMark Fasheh * the commit thread will take the trans lock for us below. */ 503ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_IN_SHUTDOWN; 504ccd979bdSMark Fasheh 505ccd979bdSMark Fasheh /* The OCFS2_JOURNAL_IN_SHUTDOWN will signal to commit_cache to not 506ccd979bdSMark Fasheh * drop the trans_lock (which we want to hold until we 507ccd979bdSMark Fasheh * completely destroy the journal. */ 508ccd979bdSMark Fasheh if (osb->commit_task) { 509ccd979bdSMark Fasheh /* Wait for the commit thread */ 510ccd979bdSMark Fasheh mlog(0, "Waiting for ocfs2commit to exit....\n"); 511ccd979bdSMark Fasheh kthread_stop(osb->commit_task); 512ccd979bdSMark Fasheh osb->commit_task = NULL; 513ccd979bdSMark Fasheh } 514ccd979bdSMark Fasheh 515ccd979bdSMark Fasheh BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0); 516ccd979bdSMark Fasheh 517c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 518c271c5c2SSunil Mushran journal_lock_updates(journal->j_journal); 519c271c5c2SSunil Mushran status = journal_flush(journal->j_journal); 520c271c5c2SSunil Mushran journal_unlock_updates(journal->j_journal); 521c271c5c2SSunil Mushran if (status < 0) 522c271c5c2SSunil Mushran mlog_errno(status); 523c271c5c2SSunil Mushran } 524c271c5c2SSunil Mushran 525c271c5c2SSunil Mushran if (status == 0) { 526c271c5c2SSunil Mushran /* 527c271c5c2SSunil Mushran * Do not toggle if flush was unsuccessful otherwise 528c271c5c2SSunil Mushran * will leave dirty metadata in a "clean" journal 529c271c5c2SSunil Mushran */ 530ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(osb, 0); 531ccd979bdSMark Fasheh if (status < 0) 532ccd979bdSMark Fasheh mlog_errno(status); 533c271c5c2SSunil Mushran } 534ccd979bdSMark Fasheh 535ccd979bdSMark Fasheh /* Shutdown the kernel journal system */ 536ccd979bdSMark Fasheh journal_destroy(journal->j_journal); 537ccd979bdSMark Fasheh 538ccd979bdSMark Fasheh OCFS2_I(inode)->ip_open_count--; 539ccd979bdSMark Fasheh 540ccd979bdSMark Fasheh /* unlock our journal */ 541ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 542ccd979bdSMark Fasheh 543ccd979bdSMark Fasheh brelse(journal->j_bh); 544ccd979bdSMark Fasheh journal->j_bh = NULL; 545ccd979bdSMark Fasheh 546ccd979bdSMark Fasheh journal->j_state = OCFS2_JOURNAL_FREE; 547ccd979bdSMark Fasheh 548ccd979bdSMark Fasheh // up_write(&journal->j_trans_barrier); 549ccd979bdSMark Fasheh done: 550ccd979bdSMark Fasheh if (inode) 551ccd979bdSMark Fasheh iput(inode); 552ccd979bdSMark Fasheh mlog_exit_void(); 553ccd979bdSMark Fasheh } 554ccd979bdSMark Fasheh 555ccd979bdSMark Fasheh static void ocfs2_clear_journal_error(struct super_block *sb, 556ccd979bdSMark Fasheh journal_t *journal, 557ccd979bdSMark Fasheh int slot) 558ccd979bdSMark Fasheh { 559ccd979bdSMark Fasheh int olderr; 560ccd979bdSMark Fasheh 561ccd979bdSMark Fasheh olderr = journal_errno(journal); 562ccd979bdSMark Fasheh if (olderr) { 563ccd979bdSMark Fasheh mlog(ML_ERROR, "File system error %d recorded in " 564ccd979bdSMark Fasheh "journal %u.\n", olderr, slot); 565ccd979bdSMark Fasheh mlog(ML_ERROR, "File system on device %s needs checking.\n", 566ccd979bdSMark Fasheh sb->s_id); 567ccd979bdSMark Fasheh 568ccd979bdSMark Fasheh journal_ack_err(journal); 569ccd979bdSMark Fasheh journal_clear_err(journal); 570ccd979bdSMark Fasheh } 571ccd979bdSMark Fasheh } 572ccd979bdSMark Fasheh 573c271c5c2SSunil Mushran int ocfs2_journal_load(struct ocfs2_journal *journal, int local) 574ccd979bdSMark Fasheh { 575ccd979bdSMark Fasheh int status = 0; 576ccd979bdSMark Fasheh struct ocfs2_super *osb; 577ccd979bdSMark Fasheh 578ccd979bdSMark Fasheh mlog_entry_void(); 579ccd979bdSMark Fasheh 580ccd979bdSMark Fasheh if (!journal) 581ccd979bdSMark Fasheh BUG(); 582ccd979bdSMark Fasheh 583ccd979bdSMark Fasheh osb = journal->j_osb; 584ccd979bdSMark Fasheh 585ccd979bdSMark Fasheh status = journal_load(journal->j_journal); 586ccd979bdSMark Fasheh if (status < 0) { 587ccd979bdSMark Fasheh mlog(ML_ERROR, "Failed to load journal!\n"); 588ccd979bdSMark Fasheh goto done; 589ccd979bdSMark Fasheh } 590ccd979bdSMark Fasheh 591ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal->j_journal, osb->slot_num); 592ccd979bdSMark Fasheh 593ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(osb, 1); 594ccd979bdSMark Fasheh if (status < 0) { 595ccd979bdSMark Fasheh mlog_errno(status); 596ccd979bdSMark Fasheh goto done; 597ccd979bdSMark Fasheh } 598ccd979bdSMark Fasheh 599ccd979bdSMark Fasheh /* Launch the commit thread */ 600c271c5c2SSunil Mushran if (!local) { 601c271c5c2SSunil Mushran osb->commit_task = kthread_run(ocfs2_commit_thread, osb, 602c271c5c2SSunil Mushran "ocfs2cmt"); 603ccd979bdSMark Fasheh if (IS_ERR(osb->commit_task)) { 604ccd979bdSMark Fasheh status = PTR_ERR(osb->commit_task); 605ccd979bdSMark Fasheh osb->commit_task = NULL; 606c271c5c2SSunil Mushran mlog(ML_ERROR, "unable to launch ocfs2commit thread, " 607c271c5c2SSunil Mushran "error=%d", status); 608ccd979bdSMark Fasheh goto done; 609ccd979bdSMark Fasheh } 610c271c5c2SSunil Mushran } else 611c271c5c2SSunil Mushran osb->commit_task = NULL; 612ccd979bdSMark Fasheh 613ccd979bdSMark Fasheh done: 614ccd979bdSMark Fasheh mlog_exit(status); 615ccd979bdSMark Fasheh return status; 616ccd979bdSMark Fasheh } 617ccd979bdSMark Fasheh 618ccd979bdSMark Fasheh 619ccd979bdSMark Fasheh /* 'full' flag tells us whether we clear out all blocks or if we just 620ccd979bdSMark Fasheh * mark the journal clean */ 621ccd979bdSMark Fasheh int ocfs2_journal_wipe(struct ocfs2_journal *journal, int full) 622ccd979bdSMark Fasheh { 623ccd979bdSMark Fasheh int status; 624ccd979bdSMark Fasheh 625ccd979bdSMark Fasheh mlog_entry_void(); 626ccd979bdSMark Fasheh 627ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!journal); 628ccd979bdSMark Fasheh 629ccd979bdSMark Fasheh status = journal_wipe(journal->j_journal, full); 630ccd979bdSMark Fasheh if (status < 0) { 631ccd979bdSMark Fasheh mlog_errno(status); 632ccd979bdSMark Fasheh goto bail; 633ccd979bdSMark Fasheh } 634ccd979bdSMark Fasheh 635ccd979bdSMark Fasheh status = ocfs2_journal_toggle_dirty(journal->j_osb, 0); 636ccd979bdSMark Fasheh if (status < 0) 637ccd979bdSMark Fasheh mlog_errno(status); 638ccd979bdSMark Fasheh 639ccd979bdSMark Fasheh bail: 640ccd979bdSMark Fasheh mlog_exit(status); 641ccd979bdSMark Fasheh return status; 642ccd979bdSMark Fasheh } 643ccd979bdSMark Fasheh 644ccd979bdSMark Fasheh /* 645ccd979bdSMark Fasheh * JBD Might read a cached version of another nodes journal file. We 646ccd979bdSMark Fasheh * don't want this as this file changes often and we get no 647ccd979bdSMark Fasheh * notification on those changes. The only way to be sure that we've 648ccd979bdSMark Fasheh * got the most up to date version of those blocks then is to force 649ccd979bdSMark Fasheh * read them off disk. Just searching through the buffer cache won't 650ccd979bdSMark Fasheh * work as there may be pages backing this file which are still marked 651ccd979bdSMark Fasheh * up to date. We know things can't change on this file underneath us 652ccd979bdSMark Fasheh * as we have the lock by now :) 653ccd979bdSMark Fasheh */ 654ccd979bdSMark Fasheh static int ocfs2_force_read_journal(struct inode *inode) 655ccd979bdSMark Fasheh { 656ccd979bdSMark Fasheh int status = 0; 6574f902c37SMark Fasheh int i; 6588110b073SMark Fasheh u64 v_blkno, p_blkno, p_blocks, num_blocks; 6594f902c37SMark Fasheh #define CONCURRENT_JOURNAL_FILL 32ULL 660ccd979bdSMark Fasheh struct buffer_head *bhs[CONCURRENT_JOURNAL_FILL]; 661ccd979bdSMark Fasheh 662ccd979bdSMark Fasheh mlog_entry_void(); 663ccd979bdSMark Fasheh 664ccd979bdSMark Fasheh memset(bhs, 0, sizeof(struct buffer_head *) * CONCURRENT_JOURNAL_FILL); 665ccd979bdSMark Fasheh 6668110b073SMark Fasheh num_blocks = ocfs2_blocks_for_bytes(inode->i_sb, inode->i_size); 667ccd979bdSMark Fasheh v_blkno = 0; 6688110b073SMark Fasheh while (v_blkno < num_blocks) { 669ccd979bdSMark Fasheh status = ocfs2_extent_map_get_blocks(inode, v_blkno, 67049cb8d2dSMark Fasheh &p_blkno, &p_blocks, NULL); 671ccd979bdSMark Fasheh if (status < 0) { 672ccd979bdSMark Fasheh mlog_errno(status); 673ccd979bdSMark Fasheh goto bail; 674ccd979bdSMark Fasheh } 675ccd979bdSMark Fasheh 676ccd979bdSMark Fasheh if (p_blocks > CONCURRENT_JOURNAL_FILL) 677ccd979bdSMark Fasheh p_blocks = CONCURRENT_JOURNAL_FILL; 678ccd979bdSMark Fasheh 679dd4a2c2bSMark Fasheh /* We are reading journal data which should not 680dd4a2c2bSMark Fasheh * be put in the uptodate cache */ 681ccd979bdSMark Fasheh status = ocfs2_read_blocks(OCFS2_SB(inode->i_sb), 682ccd979bdSMark Fasheh p_blkno, p_blocks, bhs, 0, 683dd4a2c2bSMark Fasheh NULL); 684ccd979bdSMark Fasheh if (status < 0) { 685ccd979bdSMark Fasheh mlog_errno(status); 686ccd979bdSMark Fasheh goto bail; 687ccd979bdSMark Fasheh } 688ccd979bdSMark Fasheh 689ccd979bdSMark Fasheh for(i = 0; i < p_blocks; i++) { 690ccd979bdSMark Fasheh brelse(bhs[i]); 691ccd979bdSMark Fasheh bhs[i] = NULL; 692ccd979bdSMark Fasheh } 693ccd979bdSMark Fasheh 694ccd979bdSMark Fasheh v_blkno += p_blocks; 695ccd979bdSMark Fasheh } 696ccd979bdSMark Fasheh 697ccd979bdSMark Fasheh bail: 698ccd979bdSMark Fasheh for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++) 699ccd979bdSMark Fasheh if (bhs[i]) 700ccd979bdSMark Fasheh brelse(bhs[i]); 701ccd979bdSMark Fasheh mlog_exit(status); 702ccd979bdSMark Fasheh return status; 703ccd979bdSMark Fasheh } 704ccd979bdSMark Fasheh 705ccd979bdSMark Fasheh struct ocfs2_la_recovery_item { 706ccd979bdSMark Fasheh struct list_head lri_list; 707ccd979bdSMark Fasheh int lri_slot; 708ccd979bdSMark Fasheh struct ocfs2_dinode *lri_la_dinode; 709ccd979bdSMark Fasheh struct ocfs2_dinode *lri_tl_dinode; 710ccd979bdSMark Fasheh }; 711ccd979bdSMark Fasheh 712ccd979bdSMark Fasheh /* Does the second half of the recovery process. By this point, the 713ccd979bdSMark Fasheh * node is marked clean and can actually be considered recovered, 714ccd979bdSMark Fasheh * hence it's no longer in the recovery map, but there's still some 715ccd979bdSMark Fasheh * cleanup we can do which shouldn't happen within the recovery thread 716ccd979bdSMark Fasheh * as locking in that context becomes very difficult if we are to take 717ccd979bdSMark Fasheh * recovering nodes into account. 718ccd979bdSMark Fasheh * 719ccd979bdSMark Fasheh * NOTE: This function can and will sleep on recovery of other nodes 720ccd979bdSMark Fasheh * during cluster locking, just like any other ocfs2 process. 721ccd979bdSMark Fasheh */ 722c4028958SDavid Howells void ocfs2_complete_recovery(struct work_struct *work) 723ccd979bdSMark Fasheh { 724ccd979bdSMark Fasheh int ret; 725c4028958SDavid Howells struct ocfs2_journal *journal = 726c4028958SDavid Howells container_of(work, struct ocfs2_journal, j_recovery_work); 727c4028958SDavid Howells struct ocfs2_super *osb = journal->j_osb; 728ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, *tl_dinode; 729800deef3SChristoph Hellwig struct ocfs2_la_recovery_item *item, *n; 730ccd979bdSMark Fasheh LIST_HEAD(tmp_la_list); 731ccd979bdSMark Fasheh 732ccd979bdSMark Fasheh mlog_entry_void(); 733ccd979bdSMark Fasheh 734ccd979bdSMark Fasheh mlog(0, "completing recovery from keventd\n"); 735ccd979bdSMark Fasheh 736ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 737ccd979bdSMark Fasheh list_splice_init(&journal->j_la_cleanups, &tmp_la_list); 738ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 739ccd979bdSMark Fasheh 740800deef3SChristoph Hellwig list_for_each_entry_safe(item, n, &tmp_la_list, lri_list) { 741ccd979bdSMark Fasheh list_del_init(&item->lri_list); 742ccd979bdSMark Fasheh 743ccd979bdSMark Fasheh mlog(0, "Complete recovery for slot %d\n", item->lri_slot); 744ccd979bdSMark Fasheh 745ccd979bdSMark Fasheh la_dinode = item->lri_la_dinode; 746ccd979bdSMark Fasheh if (la_dinode) { 747b0697053SMark Fasheh mlog(0, "Clean up local alloc %llu\n", 7481ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(la_dinode->i_blkno)); 749ccd979bdSMark Fasheh 750ccd979bdSMark Fasheh ret = ocfs2_complete_local_alloc_recovery(osb, 751ccd979bdSMark Fasheh la_dinode); 752ccd979bdSMark Fasheh if (ret < 0) 753ccd979bdSMark Fasheh mlog_errno(ret); 754ccd979bdSMark Fasheh 755ccd979bdSMark Fasheh kfree(la_dinode); 756ccd979bdSMark Fasheh } 757ccd979bdSMark Fasheh 758ccd979bdSMark Fasheh tl_dinode = item->lri_tl_dinode; 759ccd979bdSMark Fasheh if (tl_dinode) { 760b0697053SMark Fasheh mlog(0, "Clean up truncate log %llu\n", 7611ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(tl_dinode->i_blkno)); 762ccd979bdSMark Fasheh 763ccd979bdSMark Fasheh ret = ocfs2_complete_truncate_log_recovery(osb, 764ccd979bdSMark Fasheh tl_dinode); 765ccd979bdSMark Fasheh if (ret < 0) 766ccd979bdSMark Fasheh mlog_errno(ret); 767ccd979bdSMark Fasheh 768ccd979bdSMark Fasheh kfree(tl_dinode); 769ccd979bdSMark Fasheh } 770ccd979bdSMark Fasheh 771ccd979bdSMark Fasheh ret = ocfs2_recover_orphans(osb, item->lri_slot); 772ccd979bdSMark Fasheh if (ret < 0) 773ccd979bdSMark Fasheh mlog_errno(ret); 774ccd979bdSMark Fasheh 775ccd979bdSMark Fasheh kfree(item); 776ccd979bdSMark Fasheh } 777ccd979bdSMark Fasheh 778ccd979bdSMark Fasheh mlog(0, "Recovery completion\n"); 779ccd979bdSMark Fasheh mlog_exit_void(); 780ccd979bdSMark Fasheh } 781ccd979bdSMark Fasheh 782ccd979bdSMark Fasheh /* NOTE: This function always eats your references to la_dinode and 783ccd979bdSMark Fasheh * tl_dinode, either manually on error, or by passing them to 784ccd979bdSMark Fasheh * ocfs2_complete_recovery */ 785ccd979bdSMark Fasheh static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal, 786ccd979bdSMark Fasheh int slot_num, 787ccd979bdSMark Fasheh struct ocfs2_dinode *la_dinode, 788ccd979bdSMark Fasheh struct ocfs2_dinode *tl_dinode) 789ccd979bdSMark Fasheh { 790ccd979bdSMark Fasheh struct ocfs2_la_recovery_item *item; 791ccd979bdSMark Fasheh 792afae00abSSunil Mushran item = kmalloc(sizeof(struct ocfs2_la_recovery_item), GFP_NOFS); 793ccd979bdSMark Fasheh if (!item) { 794ccd979bdSMark Fasheh /* Though we wish to avoid it, we are in fact safe in 795ccd979bdSMark Fasheh * skipping local alloc cleanup as fsck.ocfs2 is more 796ccd979bdSMark Fasheh * than capable of reclaiming unused space. */ 797ccd979bdSMark Fasheh if (la_dinode) 798ccd979bdSMark Fasheh kfree(la_dinode); 799ccd979bdSMark Fasheh 800ccd979bdSMark Fasheh if (tl_dinode) 801ccd979bdSMark Fasheh kfree(tl_dinode); 802ccd979bdSMark Fasheh 803ccd979bdSMark Fasheh mlog_errno(-ENOMEM); 804ccd979bdSMark Fasheh return; 805ccd979bdSMark Fasheh } 806ccd979bdSMark Fasheh 807ccd979bdSMark Fasheh INIT_LIST_HEAD(&item->lri_list); 808ccd979bdSMark Fasheh item->lri_la_dinode = la_dinode; 809ccd979bdSMark Fasheh item->lri_slot = slot_num; 810ccd979bdSMark Fasheh item->lri_tl_dinode = tl_dinode; 811ccd979bdSMark Fasheh 812ccd979bdSMark Fasheh spin_lock(&journal->j_lock); 813ccd979bdSMark Fasheh list_add_tail(&item->lri_list, &journal->j_la_cleanups); 814ccd979bdSMark Fasheh queue_work(ocfs2_wq, &journal->j_recovery_work); 815ccd979bdSMark Fasheh spin_unlock(&journal->j_lock); 816ccd979bdSMark Fasheh } 817ccd979bdSMark Fasheh 818ccd979bdSMark Fasheh /* Called by the mount code to queue recovery the last part of 819ccd979bdSMark Fasheh * recovery for it's own slot. */ 820ccd979bdSMark Fasheh void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) 821ccd979bdSMark Fasheh { 822ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 823ccd979bdSMark Fasheh 824ccd979bdSMark Fasheh if (osb->dirty) { 825ccd979bdSMark Fasheh /* No need to queue up our truncate_log as regular 826ccd979bdSMark Fasheh * cleanup will catch that. */ 827ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(journal, 828ccd979bdSMark Fasheh osb->slot_num, 829ccd979bdSMark Fasheh osb->local_alloc_copy, 830ccd979bdSMark Fasheh NULL); 831ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 832ccd979bdSMark Fasheh 833ccd979bdSMark Fasheh osb->local_alloc_copy = NULL; 834ccd979bdSMark Fasheh osb->dirty = 0; 835ccd979bdSMark Fasheh } 836ccd979bdSMark Fasheh } 837ccd979bdSMark Fasheh 838ccd979bdSMark Fasheh static int __ocfs2_recovery_thread(void *arg) 839ccd979bdSMark Fasheh { 840ccd979bdSMark Fasheh int status, node_num; 841ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 842ccd979bdSMark Fasheh 843ccd979bdSMark Fasheh mlog_entry_void(); 844ccd979bdSMark Fasheh 845ccd979bdSMark Fasheh status = ocfs2_wait_on_mount(osb); 846ccd979bdSMark Fasheh if (status < 0) { 847ccd979bdSMark Fasheh goto bail; 848ccd979bdSMark Fasheh } 849ccd979bdSMark Fasheh 850ccd979bdSMark Fasheh restart: 851ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 852ccd979bdSMark Fasheh if (status < 0) { 853ccd979bdSMark Fasheh mlog_errno(status); 854ccd979bdSMark Fasheh goto bail; 855ccd979bdSMark Fasheh } 856ccd979bdSMark Fasheh 857ccd979bdSMark Fasheh while(!ocfs2_node_map_is_empty(osb, &osb->recovery_map)) { 858ccd979bdSMark Fasheh node_num = ocfs2_node_map_first_set_bit(osb, 859ccd979bdSMark Fasheh &osb->recovery_map); 860ccd979bdSMark Fasheh if (node_num == O2NM_INVALID_NODE_NUM) { 861ccd979bdSMark Fasheh mlog(0, "Out of nodes to recover.\n"); 862ccd979bdSMark Fasheh break; 863ccd979bdSMark Fasheh } 864ccd979bdSMark Fasheh 865ccd979bdSMark Fasheh status = ocfs2_recover_node(osb, node_num); 866ccd979bdSMark Fasheh if (status < 0) { 867ccd979bdSMark Fasheh mlog(ML_ERROR, 868ccd979bdSMark Fasheh "Error %d recovering node %d on device (%u,%u)!\n", 869ccd979bdSMark Fasheh status, node_num, 870ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 871ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume requires unmount.\n"); 872ccd979bdSMark Fasheh continue; 873ccd979bdSMark Fasheh } 874ccd979bdSMark Fasheh 875ccd979bdSMark Fasheh ocfs2_recovery_map_clear(osb, node_num); 876ccd979bdSMark Fasheh } 877ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 878ccd979bdSMark Fasheh 879ccd979bdSMark Fasheh /* We always run recovery on our own orphan dir - the dead 880ccd979bdSMark Fasheh * node(s) may have voted "no" on an inode delete earlier. A 881ccd979bdSMark Fasheh * revote is therefore required. */ 882ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL, 883ccd979bdSMark Fasheh NULL); 884ccd979bdSMark Fasheh 885ccd979bdSMark Fasheh bail: 886c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 887ccd979bdSMark Fasheh if (!status && 888ccd979bdSMark Fasheh !ocfs2_node_map_is_empty(osb, &osb->recovery_map)) { 889c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 890ccd979bdSMark Fasheh goto restart; 891ccd979bdSMark Fasheh } 892ccd979bdSMark Fasheh 893ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 894ccd979bdSMark Fasheh mb(); /* sync with ocfs2_recovery_thread_running */ 895ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 896ccd979bdSMark Fasheh 897c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 898ccd979bdSMark Fasheh 899ccd979bdSMark Fasheh mlog_exit(status); 900ccd979bdSMark Fasheh /* no one is callint kthread_stop() for us so the kthread() api 901ccd979bdSMark Fasheh * requires that we call do_exit(). And it isn't exported, but 902ccd979bdSMark Fasheh * complete_and_exit() seems to be a minimal wrapper around it. */ 903ccd979bdSMark Fasheh complete_and_exit(NULL, status); 904ccd979bdSMark Fasheh return status; 905ccd979bdSMark Fasheh } 906ccd979bdSMark Fasheh 907ccd979bdSMark Fasheh void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) 908ccd979bdSMark Fasheh { 909ccd979bdSMark Fasheh mlog_entry("(node_num=%d, osb->node_num = %d)\n", 910ccd979bdSMark Fasheh node_num, osb->node_num); 911ccd979bdSMark Fasheh 912c74ec2f7SArjan van de Ven mutex_lock(&osb->recovery_lock); 913ccd979bdSMark Fasheh if (osb->disable_recovery) 914ccd979bdSMark Fasheh goto out; 915ccd979bdSMark Fasheh 916ccd979bdSMark Fasheh /* People waiting on recovery will wait on 917ccd979bdSMark Fasheh * the recovery map to empty. */ 918ccd979bdSMark Fasheh if (!ocfs2_recovery_map_set(osb, node_num)) 919ccd979bdSMark Fasheh mlog(0, "node %d already be in recovery.\n", node_num); 920ccd979bdSMark Fasheh 921ccd979bdSMark Fasheh mlog(0, "starting recovery thread...\n"); 922ccd979bdSMark Fasheh 923ccd979bdSMark Fasheh if (osb->recovery_thread_task) 924ccd979bdSMark Fasheh goto out; 925ccd979bdSMark Fasheh 926ccd979bdSMark Fasheh osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb, 92778427043SMark Fasheh "ocfs2rec"); 928ccd979bdSMark Fasheh if (IS_ERR(osb->recovery_thread_task)) { 929ccd979bdSMark Fasheh mlog_errno((int)PTR_ERR(osb->recovery_thread_task)); 930ccd979bdSMark Fasheh osb->recovery_thread_task = NULL; 931ccd979bdSMark Fasheh } 932ccd979bdSMark Fasheh 933ccd979bdSMark Fasheh out: 934c74ec2f7SArjan van de Ven mutex_unlock(&osb->recovery_lock); 935ccd979bdSMark Fasheh wake_up(&osb->recovery_event); 936ccd979bdSMark Fasheh 937ccd979bdSMark Fasheh mlog_exit_void(); 938ccd979bdSMark Fasheh } 939ccd979bdSMark Fasheh 940ccd979bdSMark Fasheh /* Does the actual journal replay and marks the journal inode as 941ccd979bdSMark Fasheh * clean. Will only replay if the journal inode is marked dirty. */ 942ccd979bdSMark Fasheh static int ocfs2_replay_journal(struct ocfs2_super *osb, 943ccd979bdSMark Fasheh int node_num, 944ccd979bdSMark Fasheh int slot_num) 945ccd979bdSMark Fasheh { 946ccd979bdSMark Fasheh int status; 947ccd979bdSMark Fasheh int got_lock = 0; 948ccd979bdSMark Fasheh unsigned int flags; 949ccd979bdSMark Fasheh struct inode *inode = NULL; 950ccd979bdSMark Fasheh struct ocfs2_dinode *fe; 951ccd979bdSMark Fasheh journal_t *journal = NULL; 952ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 953ccd979bdSMark Fasheh 954ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 955ccd979bdSMark Fasheh slot_num); 956ccd979bdSMark Fasheh if (inode == NULL) { 957ccd979bdSMark Fasheh status = -EACCES; 958ccd979bdSMark Fasheh mlog_errno(status); 959ccd979bdSMark Fasheh goto done; 960ccd979bdSMark Fasheh } 961ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 962ccd979bdSMark Fasheh status = -EACCES; 963ccd979bdSMark Fasheh iput(inode); 964ccd979bdSMark Fasheh inode = NULL; 965ccd979bdSMark Fasheh mlog_errno(status); 966ccd979bdSMark Fasheh goto done; 967ccd979bdSMark Fasheh } 968ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 969ccd979bdSMark Fasheh 9704bcec184SMark Fasheh status = ocfs2_meta_lock_full(inode, &bh, 1, OCFS2_META_LOCK_RECOVERY); 971ccd979bdSMark Fasheh if (status < 0) { 972ccd979bdSMark Fasheh mlog(0, "status returned from ocfs2_meta_lock=%d\n", status); 973ccd979bdSMark Fasheh if (status != -ERESTARTSYS) 974ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not lock journal!\n"); 975ccd979bdSMark Fasheh goto done; 976ccd979bdSMark Fasheh } 977ccd979bdSMark Fasheh got_lock = 1; 978ccd979bdSMark Fasheh 979ccd979bdSMark Fasheh fe = (struct ocfs2_dinode *) bh->b_data; 980ccd979bdSMark Fasheh 981ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 982ccd979bdSMark Fasheh 983ccd979bdSMark Fasheh if (!(flags & OCFS2_JOURNAL_DIRTY_FL)) { 984ccd979bdSMark Fasheh mlog(0, "No recovery required for node %d\n", node_num); 985ccd979bdSMark Fasheh goto done; 986ccd979bdSMark Fasheh } 987ccd979bdSMark Fasheh 988ccd979bdSMark Fasheh mlog(ML_NOTICE, "Recovering node %d from slot %d on device (%u,%u)\n", 989ccd979bdSMark Fasheh node_num, slot_num, 990ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 991ccd979bdSMark Fasheh 992ccd979bdSMark Fasheh OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); 993ccd979bdSMark Fasheh 994ccd979bdSMark Fasheh status = ocfs2_force_read_journal(inode); 995ccd979bdSMark Fasheh if (status < 0) { 996ccd979bdSMark Fasheh mlog_errno(status); 997ccd979bdSMark Fasheh goto done; 998ccd979bdSMark Fasheh } 999ccd979bdSMark Fasheh 1000ccd979bdSMark Fasheh mlog(0, "calling journal_init_inode\n"); 1001ccd979bdSMark Fasheh journal = journal_init_inode(inode); 1002ccd979bdSMark Fasheh if (journal == NULL) { 1003ccd979bdSMark Fasheh mlog(ML_ERROR, "Linux journal layer error\n"); 1004ccd979bdSMark Fasheh status = -EIO; 1005ccd979bdSMark Fasheh goto done; 1006ccd979bdSMark Fasheh } 1007ccd979bdSMark Fasheh 1008ccd979bdSMark Fasheh status = journal_load(journal); 1009ccd979bdSMark Fasheh if (status < 0) { 1010ccd979bdSMark Fasheh mlog_errno(status); 1011ccd979bdSMark Fasheh if (!igrab(inode)) 1012ccd979bdSMark Fasheh BUG(); 1013ccd979bdSMark Fasheh journal_destroy(journal); 1014ccd979bdSMark Fasheh goto done; 1015ccd979bdSMark Fasheh } 1016ccd979bdSMark Fasheh 1017ccd979bdSMark Fasheh ocfs2_clear_journal_error(osb->sb, journal, slot_num); 1018ccd979bdSMark Fasheh 1019ccd979bdSMark Fasheh /* wipe the journal */ 1020ccd979bdSMark Fasheh mlog(0, "flushing the journal.\n"); 1021ccd979bdSMark Fasheh journal_lock_updates(journal); 1022ccd979bdSMark Fasheh status = journal_flush(journal); 1023ccd979bdSMark Fasheh journal_unlock_updates(journal); 1024ccd979bdSMark Fasheh if (status < 0) 1025ccd979bdSMark Fasheh mlog_errno(status); 1026ccd979bdSMark Fasheh 1027ccd979bdSMark Fasheh /* This will mark the node clean */ 1028ccd979bdSMark Fasheh flags = le32_to_cpu(fe->id1.journal1.ij_flags); 1029ccd979bdSMark Fasheh flags &= ~OCFS2_JOURNAL_DIRTY_FL; 1030ccd979bdSMark Fasheh fe->id1.journal1.ij_flags = cpu_to_le32(flags); 1031ccd979bdSMark Fasheh 1032ccd979bdSMark Fasheh status = ocfs2_write_block(osb, bh, inode); 1033ccd979bdSMark Fasheh if (status < 0) 1034ccd979bdSMark Fasheh mlog_errno(status); 1035ccd979bdSMark Fasheh 1036ccd979bdSMark Fasheh if (!igrab(inode)) 1037ccd979bdSMark Fasheh BUG(); 1038ccd979bdSMark Fasheh 1039ccd979bdSMark Fasheh journal_destroy(journal); 1040ccd979bdSMark Fasheh 1041ccd979bdSMark Fasheh done: 1042ccd979bdSMark Fasheh /* drop the lock on this nodes journal */ 1043ccd979bdSMark Fasheh if (got_lock) 1044ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 1045ccd979bdSMark Fasheh 1046ccd979bdSMark Fasheh if (inode) 1047ccd979bdSMark Fasheh iput(inode); 1048ccd979bdSMark Fasheh 1049ccd979bdSMark Fasheh if (bh) 1050ccd979bdSMark Fasheh brelse(bh); 1051ccd979bdSMark Fasheh 1052ccd979bdSMark Fasheh mlog_exit(status); 1053ccd979bdSMark Fasheh return status; 1054ccd979bdSMark Fasheh } 1055ccd979bdSMark Fasheh 1056ccd979bdSMark Fasheh /* 1057ccd979bdSMark Fasheh * Do the most important parts of node recovery: 1058ccd979bdSMark Fasheh * - Replay it's journal 1059ccd979bdSMark Fasheh * - Stamp a clean local allocator file 1060ccd979bdSMark Fasheh * - Stamp a clean truncate log 1061ccd979bdSMark Fasheh * - Mark the node clean 1062ccd979bdSMark Fasheh * 1063ccd979bdSMark Fasheh * If this function completes without error, a node in OCFS2 can be 1064ccd979bdSMark Fasheh * said to have been safely recovered. As a result, failure during the 1065ccd979bdSMark Fasheh * second part of a nodes recovery process (local alloc recovery) is 1066ccd979bdSMark Fasheh * far less concerning. 1067ccd979bdSMark Fasheh */ 1068ccd979bdSMark Fasheh static int ocfs2_recover_node(struct ocfs2_super *osb, 1069ccd979bdSMark Fasheh int node_num) 1070ccd979bdSMark Fasheh { 1071ccd979bdSMark Fasheh int status = 0; 1072ccd979bdSMark Fasheh int slot_num; 1073ccd979bdSMark Fasheh struct ocfs2_slot_info *si = osb->slot_info; 1074ccd979bdSMark Fasheh struct ocfs2_dinode *la_copy = NULL; 1075ccd979bdSMark Fasheh struct ocfs2_dinode *tl_copy = NULL; 1076ccd979bdSMark Fasheh 1077ccd979bdSMark Fasheh mlog_entry("(node_num=%d, osb->node_num = %d)\n", 1078ccd979bdSMark Fasheh node_num, osb->node_num); 1079ccd979bdSMark Fasheh 1080ccd979bdSMark Fasheh mlog(0, "checking node %d\n", node_num); 1081ccd979bdSMark Fasheh 1082ccd979bdSMark Fasheh /* Should not ever be called to recover ourselves -- in that 1083ccd979bdSMark Fasheh * case we should've called ocfs2_journal_load instead. */ 1084ebdec83bSEric Sesterhenn / snakebyte BUG_ON(osb->node_num == node_num); 1085ccd979bdSMark Fasheh 1086ccd979bdSMark Fasheh slot_num = ocfs2_node_num_to_slot(si, node_num); 1087ccd979bdSMark Fasheh if (slot_num == OCFS2_INVALID_SLOT) { 1088ccd979bdSMark Fasheh status = 0; 1089ccd979bdSMark Fasheh mlog(0, "no slot for this node, so no recovery required.\n"); 1090ccd979bdSMark Fasheh goto done; 1091ccd979bdSMark Fasheh } 1092ccd979bdSMark Fasheh 1093ccd979bdSMark Fasheh mlog(0, "node %d was using slot %d\n", node_num, slot_num); 1094ccd979bdSMark Fasheh 1095ccd979bdSMark Fasheh status = ocfs2_replay_journal(osb, node_num, slot_num); 1096ccd979bdSMark Fasheh if (status < 0) { 1097ccd979bdSMark Fasheh mlog_errno(status); 1098ccd979bdSMark Fasheh goto done; 1099ccd979bdSMark Fasheh } 1100ccd979bdSMark Fasheh 1101ccd979bdSMark Fasheh /* Stamp a clean local alloc file AFTER recovering the journal... */ 1102ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, slot_num, &la_copy); 1103ccd979bdSMark Fasheh if (status < 0) { 1104ccd979bdSMark Fasheh mlog_errno(status); 1105ccd979bdSMark Fasheh goto done; 1106ccd979bdSMark Fasheh } 1107ccd979bdSMark Fasheh 1108ccd979bdSMark Fasheh /* An error from begin_truncate_log_recovery is not 1109ccd979bdSMark Fasheh * serious enough to warrant halting the rest of 1110ccd979bdSMark Fasheh * recovery. */ 1111ccd979bdSMark Fasheh status = ocfs2_begin_truncate_log_recovery(osb, slot_num, &tl_copy); 1112ccd979bdSMark Fasheh if (status < 0) 1113ccd979bdSMark Fasheh mlog_errno(status); 1114ccd979bdSMark Fasheh 1115ccd979bdSMark Fasheh /* Likewise, this would be a strange but ultimately not so 1116ccd979bdSMark Fasheh * harmful place to get an error... */ 1117ccd979bdSMark Fasheh ocfs2_clear_slot(si, slot_num); 1118ccd979bdSMark Fasheh status = ocfs2_update_disk_slots(osb, si); 1119ccd979bdSMark Fasheh if (status < 0) 1120ccd979bdSMark Fasheh mlog_errno(status); 1121ccd979bdSMark Fasheh 1122ccd979bdSMark Fasheh /* This will kfree the memory pointed to by la_copy and tl_copy */ 1123ccd979bdSMark Fasheh ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy, 1124ccd979bdSMark Fasheh tl_copy); 1125ccd979bdSMark Fasheh 1126ccd979bdSMark Fasheh status = 0; 1127ccd979bdSMark Fasheh done: 1128ccd979bdSMark Fasheh 1129ccd979bdSMark Fasheh mlog_exit(status); 1130ccd979bdSMark Fasheh return status; 1131ccd979bdSMark Fasheh } 1132ccd979bdSMark Fasheh 1133ccd979bdSMark Fasheh /* Test node liveness by trylocking his journal. If we get the lock, 1134ccd979bdSMark Fasheh * we drop it here. Return 0 if we got the lock, -EAGAIN if node is 1135ccd979bdSMark Fasheh * still alive (we couldn't get the lock) and < 0 on error. */ 1136ccd979bdSMark Fasheh static int ocfs2_trylock_journal(struct ocfs2_super *osb, 1137ccd979bdSMark Fasheh int slot_num) 1138ccd979bdSMark Fasheh { 1139ccd979bdSMark Fasheh int status, flags; 1140ccd979bdSMark Fasheh struct inode *inode = NULL; 1141ccd979bdSMark Fasheh 1142ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, JOURNAL_SYSTEM_INODE, 1143ccd979bdSMark Fasheh slot_num); 1144ccd979bdSMark Fasheh if (inode == NULL) { 1145ccd979bdSMark Fasheh mlog(ML_ERROR, "access error\n"); 1146ccd979bdSMark Fasheh status = -EACCES; 1147ccd979bdSMark Fasheh goto bail; 1148ccd979bdSMark Fasheh } 1149ccd979bdSMark Fasheh if (is_bad_inode(inode)) { 1150ccd979bdSMark Fasheh mlog(ML_ERROR, "access error (bad inode)\n"); 1151ccd979bdSMark Fasheh iput(inode); 1152ccd979bdSMark Fasheh inode = NULL; 1153ccd979bdSMark Fasheh status = -EACCES; 1154ccd979bdSMark Fasheh goto bail; 1155ccd979bdSMark Fasheh } 1156ccd979bdSMark Fasheh SET_INODE_JOURNAL(inode); 1157ccd979bdSMark Fasheh 1158ccd979bdSMark Fasheh flags = OCFS2_META_LOCK_RECOVERY | OCFS2_META_LOCK_NOQUEUE; 11594bcec184SMark Fasheh status = ocfs2_meta_lock_full(inode, NULL, 1, flags); 1160ccd979bdSMark Fasheh if (status < 0) { 1161ccd979bdSMark Fasheh if (status != -EAGAIN) 1162ccd979bdSMark Fasheh mlog_errno(status); 1163ccd979bdSMark Fasheh goto bail; 1164ccd979bdSMark Fasheh } 1165ccd979bdSMark Fasheh 1166ccd979bdSMark Fasheh ocfs2_meta_unlock(inode, 1); 1167ccd979bdSMark Fasheh bail: 1168ccd979bdSMark Fasheh if (inode) 1169ccd979bdSMark Fasheh iput(inode); 1170ccd979bdSMark Fasheh 1171ccd979bdSMark Fasheh return status; 1172ccd979bdSMark Fasheh } 1173ccd979bdSMark Fasheh 1174ccd979bdSMark Fasheh /* Call this underneath ocfs2_super_lock. It also assumes that the 1175ccd979bdSMark Fasheh * slot info struct has been updated from disk. */ 1176ccd979bdSMark Fasheh int ocfs2_mark_dead_nodes(struct ocfs2_super *osb) 1177ccd979bdSMark Fasheh { 1178ccd979bdSMark Fasheh int status, i, node_num; 1179ccd979bdSMark Fasheh struct ocfs2_slot_info *si = osb->slot_info; 1180ccd979bdSMark Fasheh 1181ccd979bdSMark Fasheh /* This is called with the super block cluster lock, so we 1182ccd979bdSMark Fasheh * know that the slot map can't change underneath us. */ 1183ccd979bdSMark Fasheh 1184ccd979bdSMark Fasheh spin_lock(&si->si_lock); 1185ccd979bdSMark Fasheh for(i = 0; i < si->si_num_slots; i++) { 1186ccd979bdSMark Fasheh if (i == osb->slot_num) 1187ccd979bdSMark Fasheh continue; 1188ccd979bdSMark Fasheh if (ocfs2_is_empty_slot(si, i)) 1189ccd979bdSMark Fasheh continue; 1190ccd979bdSMark Fasheh 1191ccd979bdSMark Fasheh node_num = si->si_global_node_nums[i]; 1192ccd979bdSMark Fasheh if (ocfs2_node_map_test_bit(osb, &osb->recovery_map, node_num)) 1193ccd979bdSMark Fasheh continue; 1194ccd979bdSMark Fasheh spin_unlock(&si->si_lock); 1195ccd979bdSMark Fasheh 1196ccd979bdSMark Fasheh /* Ok, we have a slot occupied by another node which 1197ccd979bdSMark Fasheh * is not in the recovery map. We trylock his journal 1198ccd979bdSMark Fasheh * file here to test if he's alive. */ 1199ccd979bdSMark Fasheh status = ocfs2_trylock_journal(osb, i); 1200ccd979bdSMark Fasheh if (!status) { 1201ccd979bdSMark Fasheh /* Since we're called from mount, we know that 1202ccd979bdSMark Fasheh * the recovery thread can't race us on 1203ccd979bdSMark Fasheh * setting / checking the recovery bits. */ 1204ccd979bdSMark Fasheh ocfs2_recovery_thread(osb, node_num); 1205ccd979bdSMark Fasheh } else if ((status < 0) && (status != -EAGAIN)) { 1206ccd979bdSMark Fasheh mlog_errno(status); 1207ccd979bdSMark Fasheh goto bail; 1208ccd979bdSMark Fasheh } 1209ccd979bdSMark Fasheh 1210ccd979bdSMark Fasheh spin_lock(&si->si_lock); 1211ccd979bdSMark Fasheh } 1212ccd979bdSMark Fasheh spin_unlock(&si->si_lock); 1213ccd979bdSMark Fasheh 1214ccd979bdSMark Fasheh status = 0; 1215ccd979bdSMark Fasheh bail: 1216ccd979bdSMark Fasheh mlog_exit(status); 1217ccd979bdSMark Fasheh return status; 1218ccd979bdSMark Fasheh } 1219ccd979bdSMark Fasheh 12205eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv { 12215eae5b96SMark Fasheh struct inode *head; 12225eae5b96SMark Fasheh struct ocfs2_super *osb; 12235eae5b96SMark Fasheh }; 12245eae5b96SMark Fasheh 12255eae5b96SMark Fasheh static int ocfs2_orphan_filldir(void *priv, const char *name, int name_len, 12265eae5b96SMark Fasheh loff_t pos, u64 ino, unsigned type) 12275eae5b96SMark Fasheh { 12285eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv *p = priv; 12295eae5b96SMark Fasheh struct inode *iter; 12305eae5b96SMark Fasheh 12315eae5b96SMark Fasheh if (name_len == 1 && !strncmp(".", name, 1)) 12325eae5b96SMark Fasheh return 0; 12335eae5b96SMark Fasheh if (name_len == 2 && !strncmp("..", name, 2)) 12345eae5b96SMark Fasheh return 0; 12355eae5b96SMark Fasheh 12365eae5b96SMark Fasheh /* Skip bad inodes so that recovery can continue */ 12375eae5b96SMark Fasheh iter = ocfs2_iget(p->osb, ino, 12385eae5b96SMark Fasheh OCFS2_FI_FLAG_ORPHAN_RECOVERY); 12395eae5b96SMark Fasheh if (IS_ERR(iter)) 12405eae5b96SMark Fasheh return 0; 12415eae5b96SMark Fasheh 12425eae5b96SMark Fasheh mlog(0, "queue orphan %llu\n", 12435eae5b96SMark Fasheh (unsigned long long)OCFS2_I(iter)->ip_blkno); 12445eae5b96SMark Fasheh /* No locking is required for the next_orphan queue as there 12455eae5b96SMark Fasheh * is only ever a single process doing orphan recovery. */ 12465eae5b96SMark Fasheh OCFS2_I(iter)->ip_next_orphan = p->head; 12475eae5b96SMark Fasheh p->head = iter; 12485eae5b96SMark Fasheh 12495eae5b96SMark Fasheh return 0; 12505eae5b96SMark Fasheh } 12515eae5b96SMark Fasheh 1252b4df6ed8SMark Fasheh static int ocfs2_queue_orphans(struct ocfs2_super *osb, 1253b4df6ed8SMark Fasheh int slot, 1254b4df6ed8SMark Fasheh struct inode **head) 1255ccd979bdSMark Fasheh { 1256b4df6ed8SMark Fasheh int status; 1257ccd979bdSMark Fasheh struct inode *orphan_dir_inode = NULL; 12585eae5b96SMark Fasheh struct ocfs2_orphan_filldir_priv priv; 12595eae5b96SMark Fasheh loff_t pos = 0; 12605eae5b96SMark Fasheh 12615eae5b96SMark Fasheh priv.osb = osb; 12625eae5b96SMark Fasheh priv.head = *head; 1263ccd979bdSMark Fasheh 1264ccd979bdSMark Fasheh orphan_dir_inode = ocfs2_get_system_file_inode(osb, 1265ccd979bdSMark Fasheh ORPHAN_DIR_SYSTEM_INODE, 1266ccd979bdSMark Fasheh slot); 1267ccd979bdSMark Fasheh if (!orphan_dir_inode) { 1268ccd979bdSMark Fasheh status = -ENOENT; 1269ccd979bdSMark Fasheh mlog_errno(status); 1270b4df6ed8SMark Fasheh return status; 1271ccd979bdSMark Fasheh } 1272ccd979bdSMark Fasheh 12731b1dcc1bSJes Sorensen mutex_lock(&orphan_dir_inode->i_mutex); 12744bcec184SMark Fasheh status = ocfs2_meta_lock(orphan_dir_inode, NULL, 0); 1275ccd979bdSMark Fasheh if (status < 0) { 1276ccd979bdSMark Fasheh mlog_errno(status); 1277ccd979bdSMark Fasheh goto out; 1278ccd979bdSMark Fasheh } 1279ccd979bdSMark Fasheh 12805eae5b96SMark Fasheh status = ocfs2_dir_foreach(orphan_dir_inode, &pos, &priv, 12815eae5b96SMark Fasheh ocfs2_orphan_filldir); 12825eae5b96SMark Fasheh if (status) { 1283ccd979bdSMark Fasheh mlog_errno(status); 1284a86370fbSMark Fasheh goto out_cluster; 1285ccd979bdSMark Fasheh } 1286ccd979bdSMark Fasheh 12875eae5b96SMark Fasheh *head = priv.head; 1288ccd979bdSMark Fasheh 1289a86370fbSMark Fasheh out_cluster: 1290ccd979bdSMark Fasheh ocfs2_meta_unlock(orphan_dir_inode, 0); 1291b4df6ed8SMark Fasheh out: 1292b4df6ed8SMark Fasheh mutex_unlock(&orphan_dir_inode->i_mutex); 1293ccd979bdSMark Fasheh iput(orphan_dir_inode); 1294b4df6ed8SMark Fasheh return status; 1295b4df6ed8SMark Fasheh } 1296b4df6ed8SMark Fasheh 1297b4df6ed8SMark Fasheh static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb, 1298b4df6ed8SMark Fasheh int slot) 1299b4df6ed8SMark Fasheh { 1300b4df6ed8SMark Fasheh int ret; 1301b4df6ed8SMark Fasheh 1302b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1303b4df6ed8SMark Fasheh ret = !osb->osb_orphan_wipes[slot]; 1304b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1305b4df6ed8SMark Fasheh return ret; 1306b4df6ed8SMark Fasheh } 1307b4df6ed8SMark Fasheh 1308b4df6ed8SMark Fasheh static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb, 1309b4df6ed8SMark Fasheh int slot) 1310b4df6ed8SMark Fasheh { 1311b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1312b4df6ed8SMark Fasheh /* Mark ourselves such that new processes in delete_inode() 1313b4df6ed8SMark Fasheh * know to quit early. */ 1314b4df6ed8SMark Fasheh ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 1315b4df6ed8SMark Fasheh while (osb->osb_orphan_wipes[slot]) { 1316b4df6ed8SMark Fasheh /* If any processes are already in the middle of an 1317b4df6ed8SMark Fasheh * orphan wipe on this dir, then we need to wait for 1318b4df6ed8SMark Fasheh * them. */ 1319b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1320b4df6ed8SMark Fasheh wait_event_interruptible(osb->osb_wipe_event, 1321b4df6ed8SMark Fasheh ocfs2_orphan_recovery_can_continue(osb, slot)); 1322b4df6ed8SMark Fasheh spin_lock(&osb->osb_lock); 1323b4df6ed8SMark Fasheh } 1324b4df6ed8SMark Fasheh spin_unlock(&osb->osb_lock); 1325b4df6ed8SMark Fasheh } 1326b4df6ed8SMark Fasheh 1327b4df6ed8SMark Fasheh static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb, 1328b4df6ed8SMark Fasheh int slot) 1329b4df6ed8SMark Fasheh { 1330b4df6ed8SMark Fasheh ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot); 1331b4df6ed8SMark Fasheh } 1332b4df6ed8SMark Fasheh 1333b4df6ed8SMark Fasheh /* 1334b4df6ed8SMark Fasheh * Orphan recovery. Each mounted node has it's own orphan dir which we 1335b4df6ed8SMark Fasheh * must run during recovery. Our strategy here is to build a list of 1336b4df6ed8SMark Fasheh * the inodes in the orphan dir and iget/iput them. The VFS does 1337b4df6ed8SMark Fasheh * (most) of the rest of the work. 1338b4df6ed8SMark Fasheh * 1339b4df6ed8SMark Fasheh * Orphan recovery can happen at any time, not just mount so we have a 1340b4df6ed8SMark Fasheh * couple of extra considerations. 1341b4df6ed8SMark Fasheh * 1342b4df6ed8SMark Fasheh * - We grab as many inodes as we can under the orphan dir lock - 1343b4df6ed8SMark Fasheh * doing iget() outside the orphan dir risks getting a reference on 1344b4df6ed8SMark Fasheh * an invalid inode. 1345b4df6ed8SMark Fasheh * - We must be sure not to deadlock with other processes on the 1346b4df6ed8SMark Fasheh * system wanting to run delete_inode(). This can happen when they go 1347b4df6ed8SMark Fasheh * to lock the orphan dir and the orphan recovery process attempts to 1348b4df6ed8SMark Fasheh * iget() inside the orphan dir lock. This can be avoided by 1349b4df6ed8SMark Fasheh * advertising our state to ocfs2_delete_inode(). 1350b4df6ed8SMark Fasheh */ 1351b4df6ed8SMark Fasheh static int ocfs2_recover_orphans(struct ocfs2_super *osb, 1352b4df6ed8SMark Fasheh int slot) 1353b4df6ed8SMark Fasheh { 1354b4df6ed8SMark Fasheh int ret = 0; 1355b4df6ed8SMark Fasheh struct inode *inode = NULL; 1356b4df6ed8SMark Fasheh struct inode *iter; 1357b4df6ed8SMark Fasheh struct ocfs2_inode_info *oi; 1358b4df6ed8SMark Fasheh 1359b4df6ed8SMark Fasheh mlog(0, "Recover inodes from orphan dir in slot %d\n", slot); 1360b4df6ed8SMark Fasheh 1361b4df6ed8SMark Fasheh ocfs2_mark_recovering_orphan_dir(osb, slot); 1362b4df6ed8SMark Fasheh ret = ocfs2_queue_orphans(osb, slot, &inode); 1363b4df6ed8SMark Fasheh ocfs2_clear_recovering_orphan_dir(osb, slot); 1364b4df6ed8SMark Fasheh 1365b4df6ed8SMark Fasheh /* Error here should be noted, but we want to continue with as 1366b4df6ed8SMark Fasheh * many queued inodes as we've got. */ 1367b4df6ed8SMark Fasheh if (ret) 1368b4df6ed8SMark Fasheh mlog_errno(ret); 1369ccd979bdSMark Fasheh 1370ccd979bdSMark Fasheh while (inode) { 1371ccd979bdSMark Fasheh oi = OCFS2_I(inode); 1372b0697053SMark Fasheh mlog(0, "iput orphan %llu\n", (unsigned long long)oi->ip_blkno); 1373ccd979bdSMark Fasheh 1374ccd979bdSMark Fasheh iter = oi->ip_next_orphan; 1375ccd979bdSMark Fasheh 1376ccd979bdSMark Fasheh spin_lock(&oi->ip_lock); 1377ccd979bdSMark Fasheh /* Delete voting may have set these on the assumption 1378ccd979bdSMark Fasheh * that the other node would wipe them successfully. 1379ccd979bdSMark Fasheh * If they are still in the node's orphan dir, we need 1380ccd979bdSMark Fasheh * to reset that state. */ 1381ccd979bdSMark Fasheh oi->ip_flags &= ~(OCFS2_INODE_DELETED|OCFS2_INODE_SKIP_DELETE); 1382ccd979bdSMark Fasheh 1383ccd979bdSMark Fasheh /* Set the proper information to get us going into 1384ccd979bdSMark Fasheh * ocfs2_delete_inode. */ 1385ccd979bdSMark Fasheh oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; 1386ccd979bdSMark Fasheh spin_unlock(&oi->ip_lock); 1387ccd979bdSMark Fasheh 1388ccd979bdSMark Fasheh iput(inode); 1389ccd979bdSMark Fasheh 1390ccd979bdSMark Fasheh inode = iter; 1391ccd979bdSMark Fasheh } 1392ccd979bdSMark Fasheh 1393b4df6ed8SMark Fasheh return ret; 1394ccd979bdSMark Fasheh } 1395ccd979bdSMark Fasheh 1396ccd979bdSMark Fasheh static int ocfs2_wait_on_mount(struct ocfs2_super *osb) 1397ccd979bdSMark Fasheh { 1398ccd979bdSMark Fasheh /* This check is good because ocfs2 will wait on our recovery 1399ccd979bdSMark Fasheh * thread before changing it to something other than MOUNTED 1400ccd979bdSMark Fasheh * or DISABLED. */ 1401ccd979bdSMark Fasheh wait_event(osb->osb_mount_event, 1402ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_MOUNTED || 1403ccd979bdSMark Fasheh atomic_read(&osb->vol_state) == VOLUME_DISABLED); 1404ccd979bdSMark Fasheh 1405ccd979bdSMark Fasheh /* If there's an error on mount, then we may never get to the 1406ccd979bdSMark Fasheh * MOUNTED flag, but this is set right before 1407ccd979bdSMark Fasheh * dismount_volume() so we can trust it. */ 1408ccd979bdSMark Fasheh if (atomic_read(&osb->vol_state) == VOLUME_DISABLED) { 1409ccd979bdSMark Fasheh mlog(0, "mount error, exiting!\n"); 1410ccd979bdSMark Fasheh return -EBUSY; 1411ccd979bdSMark Fasheh } 1412ccd979bdSMark Fasheh 1413ccd979bdSMark Fasheh return 0; 1414ccd979bdSMark Fasheh } 1415ccd979bdSMark Fasheh 1416ccd979bdSMark Fasheh static int ocfs2_commit_thread(void *arg) 1417ccd979bdSMark Fasheh { 1418ccd979bdSMark Fasheh int status; 1419ccd979bdSMark Fasheh struct ocfs2_super *osb = arg; 1420ccd979bdSMark Fasheh struct ocfs2_journal *journal = osb->journal; 1421ccd979bdSMark Fasheh 1422ccd979bdSMark Fasheh /* we can trust j_num_trans here because _should_stop() is only set in 1423ccd979bdSMark Fasheh * shutdown and nobody other than ourselves should be able to start 1424ccd979bdSMark Fasheh * transactions. committing on shutdown might take a few iterations 1425ccd979bdSMark Fasheh * as final transactions put deleted inodes on the list */ 1426ccd979bdSMark Fasheh while (!(kthread_should_stop() && 1427ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) == 0)) { 1428ccd979bdSMark Fasheh 1429745ae8baSMark Fasheh wait_event_interruptible(osb->checkpoint_event, 1430ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans) 1431745ae8baSMark Fasheh || kthread_should_stop()); 1432ccd979bdSMark Fasheh 1433ccd979bdSMark Fasheh status = ocfs2_commit_cache(osb); 1434ccd979bdSMark Fasheh if (status < 0) 1435ccd979bdSMark Fasheh mlog_errno(status); 1436ccd979bdSMark Fasheh 1437ccd979bdSMark Fasheh if (kthread_should_stop() && atomic_read(&journal->j_num_trans)){ 1438ccd979bdSMark Fasheh mlog(ML_KTHREAD, 1439ccd979bdSMark Fasheh "commit_thread: %u transactions pending on " 1440ccd979bdSMark Fasheh "shutdown\n", 1441ccd979bdSMark Fasheh atomic_read(&journal->j_num_trans)); 1442ccd979bdSMark Fasheh } 1443ccd979bdSMark Fasheh } 1444ccd979bdSMark Fasheh 1445ccd979bdSMark Fasheh return 0; 1446ccd979bdSMark Fasheh } 1447ccd979bdSMark Fasheh 1448ccd979bdSMark Fasheh /* Look for a dirty journal without taking any cluster locks. Used for 1449ccd979bdSMark Fasheh * hard readonly access to determine whether the file system journals 1450ccd979bdSMark Fasheh * require recovery. */ 1451ccd979bdSMark Fasheh int ocfs2_check_journals_nolocks(struct ocfs2_super *osb) 1452ccd979bdSMark Fasheh { 1453ccd979bdSMark Fasheh int ret = 0; 1454ccd979bdSMark Fasheh unsigned int slot; 1455ccd979bdSMark Fasheh struct buffer_head *di_bh; 1456ccd979bdSMark Fasheh struct ocfs2_dinode *di; 1457ccd979bdSMark Fasheh struct inode *journal = NULL; 1458ccd979bdSMark Fasheh 1459ccd979bdSMark Fasheh for(slot = 0; slot < osb->max_slots; slot++) { 1460ccd979bdSMark Fasheh journal = ocfs2_get_system_file_inode(osb, 1461ccd979bdSMark Fasheh JOURNAL_SYSTEM_INODE, 1462ccd979bdSMark Fasheh slot); 1463ccd979bdSMark Fasheh if (!journal || is_bad_inode(journal)) { 1464ccd979bdSMark Fasheh ret = -EACCES; 1465ccd979bdSMark Fasheh mlog_errno(ret); 1466ccd979bdSMark Fasheh goto out; 1467ccd979bdSMark Fasheh } 1468ccd979bdSMark Fasheh 1469ccd979bdSMark Fasheh di_bh = NULL; 1470ccd979bdSMark Fasheh ret = ocfs2_read_block(osb, OCFS2_I(journal)->ip_blkno, &di_bh, 1471ccd979bdSMark Fasheh 0, journal); 1472ccd979bdSMark Fasheh if (ret < 0) { 1473ccd979bdSMark Fasheh mlog_errno(ret); 1474ccd979bdSMark Fasheh goto out; 1475ccd979bdSMark Fasheh } 1476ccd979bdSMark Fasheh 1477ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) di_bh->b_data; 1478ccd979bdSMark Fasheh 1479ccd979bdSMark Fasheh if (le32_to_cpu(di->id1.journal1.ij_flags) & 1480ccd979bdSMark Fasheh OCFS2_JOURNAL_DIRTY_FL) 1481ccd979bdSMark Fasheh ret = -EROFS; 1482ccd979bdSMark Fasheh 1483ccd979bdSMark Fasheh brelse(di_bh); 1484ccd979bdSMark Fasheh if (ret) 1485ccd979bdSMark Fasheh break; 1486ccd979bdSMark Fasheh } 1487ccd979bdSMark Fasheh 1488ccd979bdSMark Fasheh out: 1489ccd979bdSMark Fasheh if (journal) 1490ccd979bdSMark Fasheh iput(journal); 1491ccd979bdSMark Fasheh 1492ccd979bdSMark Fasheh return ret; 1493ccd979bdSMark Fasheh } 1494