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jbd2: add drop_transaction/update_superblock_end tracepoints 

This patch adds trace_jbd2_drop_transaction and
trace_jbd2_update_superblock_end because there are similar tracepoints
in jbd and they are needed in jbd2 as well.

Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Seiji Aguchi 2012-02-20 17:53:01 -05:00 committed by Theodore Ts'o
parent 3d2b158262
commit 2201c590dd
3 changed files with 32 additions and 0 deletions
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2
fs/jbd2/checkpoint.c
View File

@ -797,5 +797,7 @@ void __jbd2_journal_drop_transaction(journal_t *journal, transaction_t *transact
J_ASSERT(journal->j_committing_transaction != transaction);
J_ASSERT(journal->j_running_transaction != transaction);
trace_jbd2_drop_transaction(journal, transaction);
jbd_debug(1, "Dropping transaction %d, all done\n", transaction->t_tid);
}

2
fs/jbd2/journal.c
View File

@ -1185,6 +1185,8 @@ void jbd2_journal_update_superblock(journal_t *journal, int wait)
} else
write_dirty_buffer(bh, WRITE);
trace_jbd2_update_superblock_end(journal, wait);
out:
/* If we have just flushed the log (by marking s_start==0), then
* any future commit will have to be careful to update the

28
include/trace/events/jbd2.h
View File

@ -81,6 +81,13 @@ DEFINE_EVENT(jbd2_commit, jbd2_commit_logging,
TP_ARGS(journal, commit_transaction)
);
DEFINE_EVENT(jbd2_commit, jbd2_drop_transaction,
TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
TP_ARGS(journal, commit_transaction)
);
TRACE_EVENT(jbd2_end_commit,
TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
@ -229,6 +236,27 @@ TRACE_EVENT(jbd2_cleanup_journal_tail,
__entry->block_nr, __entry->freed)
);
TRACE_EVENT(jbd2_update_superblock_end,
TP_PROTO(journal_t *journal, int wait),
TP_ARGS(journal, wait),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( int, wait )
),
TP_fast_assign(
__entry->dev = journal->j_fs_dev->bd_dev;
__entry->wait = wait;
),
TP_printk("dev %d,%d wait %d",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->wait)
);
#endif /* _TRACE_JBD2_H */
/* This part must be outside protection */