提交 71f2be21 编写于 作者: T Theodore Ts'o

ext4: Add new tracepoint for jbd2_cleanup_journal_tail

Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
上级 1f2acb60
......@@ -507,6 +507,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
if (blocknr < journal->j_tail)
freed = freed + journal->j_last - journal->j_first;
trace_jbd2_cleanup_journal_tail(journal, first_tid, blocknr, freed);
jbd_debug(1,
"Cleaning journal tail from %d to %d (offset %lu), "
"freeing %lu\n",
......
......@@ -199,6 +199,34 @@ TRACE_EVENT(jbd2_checkpoint_stats,
__entry->forced_to_close, __entry->written, __entry->dropped)
);
TRACE_EVENT(jbd2_cleanup_journal_tail,
TP_PROTO(journal_t *journal, tid_t first_tid,
unsigned long block_nr, unsigned long freed),
TP_ARGS(journal, first_tid, block_nr, freed),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( tid_t, tail_sequence )
__field( tid_t, first_tid )
__field(unsigned long, block_nr )
__field(unsigned long, freed )
),
TP_fast_assign(
__entry->dev = journal->j_fs_dev->bd_dev;
__entry->tail_sequence = journal->j_tail_sequence;
__entry->first_tid = first_tid;
__entry->block_nr = block_nr;
__entry->freed = freed;
),
TP_printk("dev %s from %u to %u offset %lu freed %lu",
jbd2_dev_to_name(__entry->dev), __entry->tail_sequence,
__entry->first_tid, __entry->block_nr, __entry->freed)
);
#endif /* _TRACE_JBD2_H */
/* This part must be outside protection */
......
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