diff options
author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-12-20 04:54:54 -0500 |
---|---|---|
committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-12-20 04:54:54 -0500 |
commit | 93b8eef1c098efbea2f1fc0be7e3c681f259a7e7 (patch) | |
tree | 462cc8c2bc07bbc825dab2a200891a28d8643329 /fs/jbd2 | |
parent | a2d781fc8d9b16113dd9440107d73c0f21d7cbef (diff) | |
parent | 929096fe9ff1f4b3645cf3919527ab47e8d5e17c (diff) | |
download | op-kernel-dev-93b8eef1c098efbea2f1fc0be7e3c681f259a7e7.zip op-kernel-dev-93b8eef1c098efbea2f1fc0be7e3c681f259a7e7.tar.gz |
Merge commit 'v2.6.28-rc9' into next
Diffstat (limited to 'fs/jbd2')
-rw-r--r-- | fs/jbd2/checkpoint.c | 32 | ||||
-rw-r--r-- | fs/jbd2/commit.c | 8 | ||||
-rw-r--r-- | fs/jbd2/journal.c | 2 |
3 files changed, 31 insertions, 11 deletions
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index 9203c33..9497718 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -116,7 +116,7 @@ static int __try_to_free_cp_buf(struct journal_head *jh) */ void __jbd2_log_wait_for_space(journal_t *journal) { - int nblocks; + int nblocks, space_left; assert_spin_locked(&journal->j_state_lock); nblocks = jbd_space_needed(journal); @@ -129,25 +129,43 @@ void __jbd2_log_wait_for_space(journal_t *journal) /* * Test again, another process may have checkpointed while we * were waiting for the checkpoint lock. If there are no - * outstanding transactions there is nothing to checkpoint and - * we can't make progress. Abort the journal in this case. + * transactions ready to be checkpointed, try to recover + * journal space by calling cleanup_journal_tail(), and if + * that doesn't work, by waiting for the currently committing + * transaction to complete. If there is absolutely no way + * to make progress, this is either a BUG or corrupted + * filesystem, so abort the journal and leave a stack + * trace for forensic evidence. */ spin_lock(&journal->j_state_lock); spin_lock(&journal->j_list_lock); nblocks = jbd_space_needed(journal); - if (__jbd2_log_space_left(journal) < nblocks) { + space_left = __jbd2_log_space_left(journal); + if (space_left < nblocks) { int chkpt = journal->j_checkpoint_transactions != NULL; + tid_t tid = 0; + if (journal->j_committing_transaction) + tid = journal->j_committing_transaction->t_tid; spin_unlock(&journal->j_list_lock); spin_unlock(&journal->j_state_lock); if (chkpt) { jbd2_log_do_checkpoint(journal); + } else if (jbd2_cleanup_journal_tail(journal) == 0) { + /* We were able to recover space; yay! */ + ; + } else if (tid) { + jbd2_log_wait_commit(journal, tid); } else { - printk(KERN_ERR "%s: no transactions\n", - __func__); + printk(KERN_ERR "%s: needed %d blocks and " + "only had %d space available\n", + __func__, nblocks, space_left); + printk(KERN_ERR "%s: no way to get more " + "journal space in %s\n", __func__, + journal->j_devname); + WARN_ON(1); jbd2_journal_abort(journal, 0); } - spin_lock(&journal->j_state_lock); } else { spin_unlock(&journal->j_list_lock); diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 8b119e1..ebc667b 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -974,6 +974,9 @@ restart_loop: journal->j_committing_transaction = NULL; spin_unlock(&journal->j_state_lock); + if (journal->j_commit_callback) + journal->j_commit_callback(journal, commit_transaction); + if (commit_transaction->t_checkpoint_list == NULL && commit_transaction->t_checkpoint_io_list == NULL) { __jbd2_journal_drop_transaction(journal, commit_transaction); @@ -995,11 +998,8 @@ restart_loop: } spin_unlock(&journal->j_list_lock); - if (journal->j_commit_callback) - journal->j_commit_callback(journal, commit_transaction); - trace_mark(jbd2_end_commit, "dev %s transaction %d head %d", - journal->j_devname, commit_transaction->t_tid, + journal->j_devname, journal->j_commit_sequence, journal->j_tail_sequence); jbd_debug(1, "JBD: commit %d complete, head %d\n", journal->j_commit_sequence, journal->j_tail_sequence); diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 783de11..e70d657 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1089,6 +1089,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode) if (!journal->j_wbuf) { printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n", __func__); + jbd2_stats_proc_exit(journal); kfree(journal); return NULL; } @@ -1098,6 +1099,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode) if (err) { printk(KERN_ERR "%s: Cannnot locate journal superblock\n", __func__); + jbd2_stats_proc_exit(journal); kfree(journal); return NULL; } |