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| author | Theodore Ts'o <tytso@mit.edu> | 2009-12-23 07:45:44 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-12-23 07:45:44 -0500 |
| commit | 71f2be213a0009098819e5c04f75ff19f84f2122 (patch) | |
| tree | af3dcbb307a8cccc24670945c14c4b3d32bbd2c0 | |
| parent | 1f2acb6017d8528135ec3b01ab7cd2be6ea0630b (diff) | |
| download | linux-71f2be213a0009098819e5c04f75ff19f84f2122.tar.bz2 | |
ext4: Add new tracepoint for jbd2_cleanup_journal_tail
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/jbd2/checkpoint.c | 1 | ||||
| -rw-r--r-- | include/trace/events/jbd2.h | 28 |
2 files changed, 29 insertions, 0 deletions
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index 886849370950..30beb11ef928 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -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", diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h index 96b370a050de..bf16545cc977 100644 --- a/include/trace/events/jbd2.h +++ b/include/trace/events/jbd2.h @@ -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 */ |