diff options
Diffstat (limited to 'fs/jbd2/checkpoint.c')
| -rw-r--r-- | fs/jbd2/checkpoint.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index 3fccde7ba008..6914598022ce 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -232,7 +232,8 @@ __flush_batch(journal_t *journal, struct buffer_head **bhs, int *batch_count) * Called under jbd_lock_bh_state(jh2bh(jh)), and drops it */ static int __process_buffer(journal_t *journal, struct journal_head *jh, - struct buffer_head **bhs, int *batch_count) + struct buffer_head **bhs, int *batch_count, + transaction_t *transaction) { struct buffer_head *bh = jh2bh(jh); int ret = 0; @@ -250,6 +251,7 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh, transaction_t *t = jh->b_transaction; tid_t tid = t->t_tid; + transaction->t_chp_stats.cs_forced_to_close++; spin_unlock(&journal->j_list_lock); jbd_unlock_bh_state(bh); jbd2_log_start_commit(journal, tid); @@ -279,6 +281,7 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh, bhs[*batch_count] = bh; __buffer_relink_io(jh); jbd_unlock_bh_state(bh); + transaction->t_chp_stats.cs_written++; (*batch_count)++; if (*batch_count == NR_BATCH) { spin_unlock(&journal->j_list_lock); @@ -322,6 +325,8 @@ int jbd2_log_do_checkpoint(journal_t *journal) if (!journal->j_checkpoint_transactions) goto out; transaction = journal->j_checkpoint_transactions; + if (transaction->t_chp_stats.cs_chp_time == 0) + transaction->t_chp_stats.cs_chp_time = jiffies; this_tid = transaction->t_tid; restart: /* @@ -346,8 +351,10 @@ restart: retry = 1; break; } - retry = __process_buffer(journal, jh, bhs,&batch_count); - if (!retry && lock_need_resched(&journal->j_list_lock)){ + retry = __process_buffer(journal, jh, bhs, &batch_count, + transaction); + if (!retry && (need_resched() || + spin_needbreak(&journal->j_list_lock))) { spin_unlock(&journal->j_list_lock); retry = 1; break; @@ -602,15 +609,15 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh) /* * There is one special case to worry about: if we have just pulled the - * buffer off a committing transaction's forget list, then even if the - * checkpoint list is empty, the transaction obviously cannot be - * dropped! + * buffer off a running or committing transaction's checkpoing list, + * then even if the checkpoint list is empty, the transaction obviously + * cannot be dropped! * - * The locking here around j_committing_transaction is a bit sleazy. + * The locking here around t_state is a bit sleazy. * See the comment at the end of jbd2_journal_commit_transaction(). */ - if (transaction == journal->j_committing_transaction) { - JBUFFER_TRACE(jh, "belongs to committing transaction"); + if (transaction->t_state != T_FINISHED) { + JBUFFER_TRACE(jh, "belongs to running/committing transaction"); goto out; } |