Lines Matching full:transaction
3 * linux/fs/jbd2/transaction.c
9 * Generic filesystem transaction handling code; part of the ext2fs
46 pr_emerg("JBD2: failed to create transaction cache\n"); in jbd2_journal_init_transaction_cache()
58 void jbd2_journal_free_transaction(transaction_t *transaction) in jbd2_journal_free_transaction() argument
60 if (unlikely(ZERO_OR_NULL_PTR(transaction))) in jbd2_journal_free_transaction()
62 kmem_cache_free(transaction_cache, transaction); in jbd2_journal_free_transaction()
68 * Simply initialise a new transaction. Initialize it in
70 * have an existing running transaction: we only make a new transaction
75 * new transaction and we can't block without protecting against other
81 transaction_t *transaction) in jbd2_get_transaction() argument
83 transaction->t_journal = journal; in jbd2_get_transaction()
84 transaction->t_state = T_RUNNING; in jbd2_get_transaction()
85 transaction->t_start_time = ktime_get(); in jbd2_get_transaction()
86 transaction->t_tid = journal->j_transaction_sequence++; in jbd2_get_transaction()
87 transaction->t_expires = jiffies + journal->j_commit_interval; in jbd2_get_transaction()
88 atomic_set(&transaction->t_updates, 0); in jbd2_get_transaction()
89 atomic_set(&transaction->t_outstanding_credits, in jbd2_get_transaction()
92 atomic_set(&transaction->t_outstanding_revokes, 0); in jbd2_get_transaction()
93 atomic_set(&transaction->t_handle_count, 0); in jbd2_get_transaction()
94 INIT_LIST_HEAD(&transaction->t_inode_list); in jbd2_get_transaction()
95 INIT_LIST_HEAD(&transaction->t_private_list); in jbd2_get_transaction()
97 /* Set up the commit timer for the new transaction. */ in jbd2_get_transaction()
98 journal->j_commit_timer.expires = round_jiffies_up(transaction->t_expires); in jbd2_get_transaction()
102 journal->j_running_transaction = transaction; in jbd2_get_transaction()
103 transaction->t_max_wait = 0; in jbd2_get_transaction()
104 transaction->t_start = jiffies; in jbd2_get_transaction()
105 transaction->t_requested = 0; in jbd2_get_transaction()
117 * Update transaction's maximum wait time, if debugging is enabled.
124 static inline void update_t_max_wait(transaction_t *transaction, in update_t_max_wait() argument
129 if (time_after(transaction->t_start, ts)) { in update_t_max_wait()
130 newts = jbd2_time_diff(ts, transaction->t_start); in update_t_max_wait()
131 oldts = READ_ONCE(transaction->t_max_wait); in update_t_max_wait()
133 oldts = cmpxchg(&transaction->t_max_wait, oldts, newts); in update_t_max_wait()
138 * Wait until running transaction passes to T_FLUSH state and new transaction
140 * running transaction to exist and releases j_state_lock.
161 * Wait until running transaction transitions from T_SWITCH to T_FLUSH
162 * state and new transaction can thus be started. The function releases
194 /* Maximum number of blocks for user transaction payload */
202 * Wait until we can add credits for handle to the running transaction. Called
204 * transaction. Returns 1 if we had to wait, j_state_lock is dropped, and
221 * If the current transaction is locked down for commit, wait in add_transaction_credits()
239 * If the current transaction is already too large, in add_transaction_credits()
241 * attach this handle to a new transaction. in add_transaction_credits()
246 * Is the number of reserved credits in the current transaction too in add_transaction_credits()
269 * associated with a committing transaction creates a deadlock, in add_transaction_credits()
274 * in the new transaction. in add_transaction_credits()
294 /* We allow at most half of a transaction to be reserved */ in add_transaction_credits()
312 * to begin. Attach the handle to a transaction and set up the
313 * transaction's buffer credits.
319 transaction_t *transaction, *new_transaction = NULL; in start_this_handle() local
328 * Limit the number of reserved credits to 1/2 of maximum transaction in start_this_handle()
330 * transaction size per operation. in start_this_handle()
345 * transaction early if there are high chances we'll need it. If we in start_this_handle()
346 * guess wrong, we'll retry or free unused transaction. in start_this_handle()
378 * Wait on the journal's transaction barrier if necessary. Specifically in start_this_handle()
403 transaction = journal->j_running_transaction; in start_this_handle()
418 * transaction and we don't have to check for transaction size in start_this_handle()
420 * transaction is being switched to a committing one as it in start_this_handle()
423 if (transaction->t_state == T_SWITCH) { in start_this_handle()
432 * use and add the handle to the running transaction. in start_this_handle()
434 update_t_max_wait(transaction, ts); in start_this_handle()
435 handle->h_transaction = transaction; in start_this_handle()
439 atomic_inc(&transaction->t_updates); in start_this_handle()
440 atomic_inc(&transaction->t_handle_count); in start_this_handle()
443 atomic_read(&transaction->t_outstanding_credits), in start_this_handle()
451 * Ensure that no allocations done while the transaction is open are in start_this_handle()
525 * @journal: Journal to start transaction on.
528 * We make sure that the transaction can guarantee at least nblocks of
532 * stored in h_rsv_handle. It is not attached to any particular transaction
533 * and thus doesn't block transaction commit. If the caller uses this reserved
562 /* Get j_state_lock to pin running transaction if it exists */ in jbd2_journal_free_reserved()
577 * This attaches @handle to the running transaction (or creates one if there's
578 * not transaction running). Unlike jbd2_journal_start() this function cannot
643 * return code > 0 implies normal transaction-full status.
647 transaction_t *transaction = handle->h_transaction; in jbd2_journal_extend() local
654 journal = transaction->t_journal; in jbd2_journal_extend()
660 /* Don't extend a locked-down transaction! */ in jbd2_journal_extend()
661 if (transaction->t_state != T_RUNNING) { in jbd2_journal_extend()
663 "transaction not running\n", handle, nblocks); in jbd2_journal_extend()
674 &transaction->t_outstanding_credits); in jbd2_journal_extend()
678 "transaction too large\n", handle, nblocks); in jbd2_journal_extend()
679 atomic_sub(nblocks, &transaction->t_outstanding_credits); in jbd2_journal_extend()
684 transaction->t_tid, in jbd2_journal_extend()
703 transaction_t *transaction = handle->h_transaction; in stop_this_handle() local
704 journal_t *journal = transaction->t_journal; in stop_this_handle()
708 J_ASSERT(atomic_read(&transaction->t_updates) > 0); in stop_this_handle()
713 * transaction will really need as large sequences of transactions with in stop_this_handle()
724 &transaction->t_outstanding_revokes); in stop_this_handle()
731 &transaction->t_outstanding_credits); in stop_this_handle()
734 transaction); in stop_this_handle()
735 if (atomic_dec_and_test(&transaction->t_updates)) in stop_this_handle()
753 * Restart a handle for a multi-transaction filesystem
758 * handle's transaction so far and reattach the handle to a new
759 * transaction capable of guaranteeing the requested number of
766 transaction_t *transaction = handle->h_transaction; in jbd2__journal_restart() local
776 journal = transaction->t_journal; in jbd2__journal_restart()
777 tid = transaction->t_tid; in jbd2__journal_restart()
780 * First unlink the handle from its current transaction, and start the in jbd2__journal_restart()
826 * Note that the running transaction can get freed under us if in jbd2_journal_wait_updates()
827 * this transaction is getting committed in in jbd2_journal_wait_updates()
833 * lead to use-after-free of old freed transaction. in jbd2_journal_wait_updates()
835 transaction_t *transaction = journal->j_running_transaction; in jbd2_journal_wait_updates() local
837 if (!transaction) in jbd2_journal_wait_updates()
842 if (!atomic_read(&transaction->t_updates)) { in jbd2_journal_wait_updates()
854 * jbd2_journal_lock_updates () - establish a transaction barrier.
896 * Release a transaction barrier obtained with jbd2_journal_lock_updates().
941 * If the buffer is already part of the current transaction, then there
943 * transaction which we are still committing to disk, then we need to
947 * part of the transaction, that is).
955 transaction_t *transaction = handle->h_transaction; in do_get_write_access() local
961 journal = transaction->t_journal; in do_get_write_access()
1021 * The buffer is already part of this transaction if b_transaction or in do_get_write_access()
1024 if (jh->b_transaction == transaction || in do_get_write_access()
1025 jh->b_next_transaction == transaction) { in do_get_write_access()
1031 * this is the first time this transaction is touching this buffer, in do_get_write_access()
1042 JBUFFER_TRACE(jh, "no transaction"); in do_get_write_access()
1047 * visible before attaching it to the running transaction. in do_get_write_access()
1063 __jbd2_journal_file_buffer(jh, transaction, BJ_Reserved); in do_get_write_access()
1080 JBUFFER_TRACE(jh, "owned by older transaction"); in do_get_write_access()
1086 * committing transaction is currently writing this buffer out to disk in do_get_write_access()
1101 * Only do the copy if the currently-owning transaction still needs it. in do_get_write_access()
1102 * If buffer isn't on BJ_Metadata list, the committing transaction is in do_get_write_access()
1109 * committed_data record after the transaction, so we HAVE to force the in do_get_write_access()
1128 * before attaching it to the running transaction. Paired with barrier in do_get_write_access()
1132 jh->b_next_transaction = transaction; in do_get_write_access()
1151 /* Fast check whether buffer is already attached to the required transaction */
1166 * we see jh attached to the running transaction, we know it must stay in jbd2_write_access_granted()
1167 * so until the transaction is committed. Thus jh won't be freed and in jbd2_write_access_granted()
1169 * happen jh gets freed, reallocated, and attached to the transaction in jbd2_write_access_granted()
1189 * detect when jh went through free, realloc, attach to transaction in jbd2_write_access_granted()
1207 * @handle: transaction to add buffer modifications to
1257 * the bh is not already part of an existing transaction.
1265 * @handle: transaction to new buffer to
1272 transaction_t *transaction = handle->h_transaction; in jbd2_journal_get_create_access() local
1281 journal = transaction->t_journal; in jbd2_journal_get_create_access()
1286 * The buffer may already belong to this transaction due to pre-zeroing in jbd2_journal_get_create_access()
1288 * committing transaction's lists, but it HAS to be in Forget state in in jbd2_journal_get_create_access()
1289 * that case: the transaction must have deleted the buffer for it to be in jbd2_journal_get_create_access()
1293 J_ASSERT_JH(jh, (jh->b_transaction == transaction || in jbd2_journal_get_create_access()
1307 * the buffer so the transaction freeing it must have in jbd2_journal_get_create_access()
1311 /* first access by this transaction */ in jbd2_journal_get_create_access()
1316 __jbd2_journal_file_buffer(jh, transaction, BJ_Reserved); in jbd2_journal_get_create_access()
1319 /* first access by this transaction */ in jbd2_journal_get_create_access()
1322 JBUFFER_TRACE(jh, "set next transaction"); in jbd2_journal_get_create_access()
1324 jh->b_next_transaction = transaction; in jbd2_journal_get_create_access()
1346 * @handle: transaction
1362 * We never need to know which transaction the committed data is part
1364 * will be committed to a new transaction in due course, at which point
1427 * a running transaction will match the buffer in that transaction.
1464 * @handle: transaction to add buffer to.
1468 * transaction.
1474 * The buffer is placed on the transaction's metadata list and is marked
1475 * as belonging to the transaction.
1480 * current committing transaction (in which case we should have frozen
1482 * buffer: that only gets done when the old transaction finally
1487 transaction_t *transaction = handle->h_transaction; in jbd2_journal_dirty_metadata() local
1497 * of the running transaction. in jbd2_journal_dirty_metadata()
1509 if (data_race(jh->b_transaction != transaction && in jbd2_journal_dirty_metadata()
1510 jh->b_next_transaction != transaction)) { in jbd2_journal_dirty_metadata()
1512 J_ASSERT_JH(jh, jh->b_transaction == transaction || in jbd2_journal_dirty_metadata()
1513 jh->b_next_transaction == transaction); in jbd2_journal_dirty_metadata()
1517 /* If it's in our transaction it must be in BJ_Metadata list. */ in jbd2_journal_dirty_metadata()
1518 if (data_race(jh->b_transaction == transaction && in jbd2_journal_dirty_metadata()
1521 if (jh->b_transaction == transaction && in jbd2_journal_dirty_metadata()
1528 J_ASSERT_JH(jh, jh->b_transaction != transaction || in jbd2_journal_dirty_metadata()
1535 journal = transaction->t_journal; in jbd2_journal_dirty_metadata()
1542 * 'jh->b_next_transaction' during old transaction in jbd2_journal_dirty_metadata()
1553 * of the transaction. This needs to be done in jbd2_journal_dirty_metadata()
1554 * once a transaction -bzzz in jbd2_journal_dirty_metadata()
1566 * on the running transaction's metadata list there is nothing to do. in jbd2_journal_dirty_metadata()
1571 if (jh->b_transaction == transaction && jh->b_jlist == BJ_Metadata) { in jbd2_journal_dirty_metadata()
1593 * Metadata already on the current transaction list doesn't in jbd2_journal_dirty_metadata()
1594 * need to be filed. Metadata on another transaction's list must in jbd2_journal_dirty_metadata()
1598 if (jh->b_transaction != transaction) { in jbd2_journal_dirty_metadata()
1599 JBUFFER_TRACE(jh, "already on other transaction"); in jbd2_journal_dirty_metadata()
1602 (jh->b_next_transaction != transaction))) { in jbd2_journal_dirty_metadata()
1605 "transaction (%p, %u), " in jbd2_journal_dirty_metadata()
1610 transaction, transaction->t_tid, in jbd2_journal_dirty_metadata()
1622 * transaction's data buffer, ever. */ in jbd2_journal_dirty_metadata()
1631 __jbd2_journal_file_buffer(jh, transaction, BJ_Metadata); in jbd2_journal_dirty_metadata()
1642 * @handle: transaction handle
1646 * buffer. If the buffer is dirty in the current running transaction we
1659 transaction_t *transaction = handle->h_transaction; in jbd2_journal_forget() local
1668 journal = transaction->t_journal; in jbd2_journal_forget()
1688 /* keep track of whether or not this transaction modified us */ in jbd2_journal_forget()
1692 * The buffer's going from the transaction, we must drop in jbd2_journal_forget()
1697 if (jh->b_transaction == transaction) { in jbd2_journal_forget()
1701 * of this transaction, then we can just drop it from in jbd2_journal_forget()
1702 * the transaction immediately. */ in jbd2_journal_forget()
1706 JBUFFER_TRACE(jh, "belongs to current transaction: unfile"); in jbd2_journal_forget()
1709 * we only want to drop a reference if this transaction in jbd2_journal_forget()
1717 * However, the commit of this transaction is still in jbd2_journal_forget()
1730 __jbd2_journal_file_buffer(jh, transaction, BJ_Forget); in jbd2_journal_forget()
1740 * (committing) transaction, we can't drop it yet... */ in jbd2_journal_forget()
1741 JBUFFER_TRACE(jh, "belongs to older transaction"); in jbd2_journal_forget()
1742 /* ... but we CAN drop it from the new transaction through in jbd2_journal_forget()
1744 * the new transaction, so that not only the commit code in jbd2_journal_forget()
1747 * after the new transaction commits. */ in jbd2_journal_forget()
1753 jh->b_next_transaction = transaction; in jbd2_journal_forget()
1756 J_ASSERT(jh->b_next_transaction == transaction); in jbd2_journal_forget()
1759 * only drop a reference if this transaction modified in jbd2_journal_forget()
1768 * transaction, we can just drop it now if it has no in jbd2_journal_forget()
1773 JBUFFER_TRACE(jh, "belongs to none transaction"); in jbd2_journal_forget()
1789 * attach this buffer to current transaction so that the in jbd2_journal_forget()
1791 * transaction commits. in jbd2_journal_forget()
1794 __jbd2_journal_file_buffer(jh, transaction, BJ_Forget); in jbd2_journal_forget()
1809 * jbd2_journal_stop() - complete a transaction
1810 * @handle: transaction to complete.
1815 * buffer credits to the transaction and remove the handle. The only
1822 * transaction began.
1826 transaction_t *transaction = handle->h_transaction; in jbd2_journal_stop() local
1839 if (!transaction) { in jbd2_journal_stop()
1841 * Handle is already detached from the transaction so there is in jbd2_journal_stop()
1847 journal = transaction->t_journal; in jbd2_journal_stop()
1848 tid = transaction->t_tid; in jbd2_journal_stop()
1862 * Implement synchronous transaction batching. If the handle in jbd2_journal_stop()
1865 * transaction. Keep doing that while new threads continue to in jbd2_journal_stop()
1874 * and wait for the transaction to be committed than it is to in jbd2_journal_stop()
1876 * join the transaction. We achieve this by measuring how in jbd2_journal_stop()
1877 * long it takes to commit a transaction, and compare it with in jbd2_journal_stop()
1878 * how long this transaction has been running, and if run time in jbd2_journal_stop()
1902 transaction->t_start_time)); in jbd2_journal_stop()
1918 transaction->t_synchronous_commit = 1; in jbd2_journal_stop()
1922 * going! We also want to force a commit if the transaction is too in jbd2_journal_stop()
1926 time_after_eq(jiffies, transaction->t_expires)) { in jbd2_journal_stop()
1931 jbd2_debug(2, "transaction too old, requesting commit for " in jbd2_journal_stop()
1945 * Once stop_this_handle() drops t_updates, the transaction could start in jbd2_journal_stop()
1947 * dereference transaction pointer again after calling in jbd2_journal_stop()
1965 * transaction buffer lists.
1970 * Append a buffer to a transaction list, given the transaction's list head
1994 * Remove a buffer from a transaction list, given the transaction's list
2015 * Remove a buffer from the appropriate transaction list.
2028 transaction_t *transaction; in __jbd2_journal_temp_unlink_buffer() local
2032 transaction = jh->b_transaction; in __jbd2_journal_temp_unlink_buffer()
2033 if (transaction) in __jbd2_journal_temp_unlink_buffer()
2034 assert_spin_locked(&transaction->t_journal->j_list_lock); in __jbd2_journal_temp_unlink_buffer()
2038 J_ASSERT_JH(jh, transaction != NULL); in __jbd2_journal_temp_unlink_buffer()
2044 transaction->t_nr_buffers--; in __jbd2_journal_temp_unlink_buffer()
2045 J_ASSERT_JH(jh, transaction->t_nr_buffers >= 0); in __jbd2_journal_temp_unlink_buffer()
2046 list = &transaction->t_buffers; in __jbd2_journal_temp_unlink_buffer()
2049 list = &transaction->t_forget; in __jbd2_journal_temp_unlink_buffer()
2052 list = &transaction->t_shadow_list; in __jbd2_journal_temp_unlink_buffer()
2055 list = &transaction->t_reserved_list; in __jbd2_journal_temp_unlink_buffer()
2061 if (transaction && is_journal_aborted(transaction->t_journal)) in __jbd2_journal_temp_unlink_buffer()
2069 * the jh reference that belonged to the transaction.
2113 * running transaction's ->t_datalist via __jbd2_journal_unfile_buffer.
2127 * while the data is part of a transaction. Yes?
2173 * This buffer is no longer needed. If it is on an older transaction's
2174 * checkpoint list we need to record it on this transaction's forget list
2175 * to pin this buffer (and hence its checkpointing transaction) down until
2176 * this transaction commits. If the buffer isn't on a checkpoint list, we
2184 static int __dispose_buffer(struct journal_head *jh, transaction_t *transaction) in __dispose_buffer() argument
2190 JBUFFER_TRACE(jh, "on running+cp transaction"); in __dispose_buffer()
2198 __jbd2_journal_file_buffer(jh, transaction, BJ_Forget); in __dispose_buffer()
2201 JBUFFER_TRACE(jh, "on running transaction"); in __dispose_buffer()
2221 * attached to the current transaction: once the transaction commits,
2225 * previous, committing transaction!
2228 * transaction (and which therefore cannot be discarded immediately) are
2229 * not going to be reused in the new running transaction
2232 * allocated in one transaction and removed in the next will be marked
2234 * the next transaction to delete the block commits. This means that
2243 * transaction commit --- so it is always safe just to discard data
2250 * transaction.
2252 * We're outside-transaction here. Either or both of j_running_transaction
2258 transaction_t *transaction; in journal_unmap_buffer() local
2281 * transaction adding inode to orphan list (let's call it T) in journal_unmap_buffer()
2282 * is committed. Otherwise if the transaction changing the in journal_unmap_buffer()
2287 * transaction marking the buffer as freed in the filesystem in journal_unmap_buffer()
2292 * the buffer to BJ_Forget list of the newest transaction. in journal_unmap_buffer()
2300 * the transaction this buffer was modified in. in journal_unmap_buffer()
2302 transaction = jh->b_transaction; in journal_unmap_buffer()
2303 if (transaction == NULL) { in journal_unmap_buffer()
2304 /* First case: not on any transaction. If it in journal_unmap_buffer()
2309 JBUFFER_TRACE(jh, "not on any transaction: zap"); in journal_unmap_buffer()
2324 /* ... and once the current transaction has in journal_unmap_buffer()
2332 /* There is no currently-running transaction. So the in journal_unmap_buffer()
2335 * the committing transaction, if it exists. */ in journal_unmap_buffer()
2342 /* The orphan record's transaction has in journal_unmap_buffer()
2349 } else if (transaction == journal->j_committing_transaction) { in journal_unmap_buffer()
2350 JBUFFER_TRACE(jh, "on committing transaction"); in journal_unmap_buffer()
2368 * b_modified to not confuse transaction credit accounting, and in journal_unmap_buffer()
2369 * set j_next_transaction to the running transaction (if there in journal_unmap_buffer()
2383 /* Good, the buffer belongs to the running transaction. in journal_unmap_buffer()
2384 * We are writing our own transaction's data, not any in journal_unmap_buffer()
2389 J_ASSERT_JH(jh, transaction == journal->j_running_transaction); in journal_unmap_buffer()
2390 JBUFFER_TRACE(jh, "on running transaction"); in journal_unmap_buffer()
2391 may_free = __dispose_buffer(jh, transaction); in journal_unmap_buffer()
2399 * running transaction, journal_get_write_access() won't clear in journal_unmap_buffer()
2428 * Can return -EBUSY if buffers are part of the committing transaction and
2484 * File a buffer on the given transaction list.
2487 transaction_t *transaction, int jlist) in __jbd2_journal_file_buffer() argument
2494 assert_spin_locked(&transaction->t_journal->j_list_lock); in __jbd2_journal_file_buffer()
2497 J_ASSERT_JH(jh, jh->b_transaction == transaction || in __jbd2_journal_file_buffer()
2523 jh->b_transaction = transaction; in __jbd2_journal_file_buffer()
2531 transaction->t_nr_buffers++; in __jbd2_journal_file_buffer()
2532 list = &transaction->t_buffers; in __jbd2_journal_file_buffer()
2535 list = &transaction->t_forget; in __jbd2_journal_file_buffer()
2538 list = &transaction->t_shadow_list; in __jbd2_journal_file_buffer()
2541 list = &transaction->t_reserved_list; in __jbd2_journal_file_buffer()
2553 transaction_t *transaction, int jlist) in jbd2_journal_file_buffer() argument
2556 spin_lock(&transaction->t_journal->j_list_lock); in jbd2_journal_file_buffer()
2557 __jbd2_journal_file_buffer(jh, transaction, jlist); in jbd2_journal_file_buffer()
2558 spin_unlock(&transaction->t_journal->j_list_lock); in jbd2_journal_file_buffer()
2564 * dropping it from its current transaction entirely. If the buffer has
2565 * already started to be used by a subsequent transaction, refile the
2566 * buffer on that transaction's metadata list.
2571 * When this function returns true, there's no next transaction to refile to
2591 * It has been modified by a later transaction: add it to the new in __jbd2_journal_refile_buffer()
2592 * transaction's metadata list. in __jbd2_journal_refile_buffer()
2645 * File inode in the inode list of the handle's transaction
2650 transaction_t *transaction = handle->h_transaction; in jbd2_journal_file_inode() local
2655 journal = transaction->t_journal; in jbd2_journal_file_inode()
2658 transaction->t_tid); in jbd2_journal_file_inode()
2672 if (jinode->i_transaction == transaction || in jbd2_journal_file_inode()
2673 jinode->i_next_transaction == transaction) in jbd2_journal_file_inode()
2681 if (!transaction->t_need_data_flush) in jbd2_journal_file_inode()
2682 transaction->t_need_data_flush = 1; in jbd2_journal_file_inode()
2683 /* On some different transaction's list - should be in jbd2_journal_file_inode()
2689 jinode->i_next_transaction = transaction; in jbd2_journal_file_inode()
2692 /* Not on any transaction list... */ in jbd2_journal_file_inode()
2694 jinode->i_transaction = transaction; in jbd2_journal_file_inode()
2695 list_add(&jinode->i_list, &transaction->t_inode_list); in jbd2_journal_file_inode()
2718 * File truncate and transaction commit interact with each other in a
2719 * non-trivial way. If a transaction writing data block A is
2721 * written them. Otherwise if we crashed after the transaction with
2722 * write has committed but before the transaction with truncate has
2725 * part in case it is in the committing transaction.
2731 * committing the transaction after this function has been called but
2732 * before a transaction for truncate is started (and furthermore it
2734 * happens in the same transaction as write --- we don't have to write
2748 * enough that the transaction was not committing before we started in jbd2_journal_begin_ordered_truncate()
2749 * a transaction adding the inode to orphan list */ in jbd2_journal_begin_ordered_truncate()