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authorLukas Czerner <lczerner@redhat.com>2011-05-23 18:33:02 +0200
committerJan Kara <jack@suse.cz>2011-06-25 17:29:51 +0200
commit99cb1a318c37bf462c53d43f4dacb7b4896ce0c9 (patch)
tree32a9046649777e8cc589bbc8e0afb382642ba450 /include/trace
parent785c4bcc0d88ff006a0b2120815a71e86ecf21ce (diff)
downloadop-kernel-dev-99cb1a318c37bf462c53d43f4dacb7b4896ce0c9.zip
op-kernel-dev-99cb1a318c37bf462c53d43f4dacb7b4896ce0c9.tar.gz
jbd: Add fixed tracepoints
This commit adds fixed tracepoint for jbd. It has been based on fixed tracepoints for jbd2, however there are missing those for collecting statistics, since I think that it will require more intrusive patch so I should have its own commit, if someone decide that it is needed. Also there are new tracepoints in __journal_drop_transaction() and journal_update_superblock(). The list of jbd tracepoints: jbd_checkpoint jbd_start_commit jbd_commit_locking jbd_commit_flushing jbd_commit_logging jbd_drop_transaction jbd_end_commit jbd_do_submit_data jbd_cleanup_journal_tail jbd_update_superblock_end Signed-off-by: Lukas Czerner <lczerner@redhat.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/jbd.h203
1 files changed, 203 insertions, 0 deletions
diff --git a/include/trace/events/jbd.h b/include/trace/events/jbd.h
new file mode 100644
index 0000000..aff64d8
--- /dev/null
+++ b/include/trace/events/jbd.h
@@ -0,0 +1,203 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM jbd
+
+#if !defined(_TRACE_JBD_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_JBD_H
+
+#include <linux/jbd.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(jbd_checkpoint,
+
+ TP_PROTO(journal_t *journal, int result),
+
+ TP_ARGS(journal, result),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( int, result )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = journal->j_fs_dev->bd_dev;
+ __entry->result = result;
+ ),
+
+ TP_printk("dev %d,%d result %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->result)
+);
+
+DECLARE_EVENT_CLASS(jbd_commit,
+
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( char, sync_commit )
+ __field( int, transaction )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = journal->j_fs_dev->bd_dev;
+ __entry->sync_commit = commit_transaction->t_synchronous_commit;
+ __entry->transaction = commit_transaction->t_tid;
+ ),
+
+ TP_printk("dev %d,%d transaction %d sync %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->transaction, __entry->sync_commit)
+);
+
+DEFINE_EVENT(jbd_commit, jbd_start_commit,
+
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction)
+);
+
+DEFINE_EVENT(jbd_commit, jbd_commit_locking,
+
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction)
+);
+
+DEFINE_EVENT(jbd_commit, jbd_commit_flushing,
+
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction)
+);
+
+DEFINE_EVENT(jbd_commit, jbd_commit_logging,
+
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction)
+);
+
+TRACE_EVENT(jbd_drop_transaction,
+
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( char, sync_commit )
+ __field( int, transaction )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = journal->j_fs_dev->bd_dev;
+ __entry->sync_commit = commit_transaction->t_synchronous_commit;
+ __entry->transaction = commit_transaction->t_tid;
+ ),
+
+ TP_printk("dev %d,%d transaction %d sync %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->transaction, __entry->sync_commit)
+);
+
+TRACE_EVENT(jbd_end_commit,
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( char, sync_commit )
+ __field( int, transaction )
+ __field( int, head )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = journal->j_fs_dev->bd_dev;
+ __entry->sync_commit = commit_transaction->t_synchronous_commit;
+ __entry->transaction = commit_transaction->t_tid;
+ __entry->head = journal->j_tail_sequence;
+ ),
+
+ TP_printk("dev %d,%d transaction %d sync %d head %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->transaction, __entry->sync_commit, __entry->head)
+);
+
+TRACE_EVENT(jbd_do_submit_data,
+ TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+ TP_ARGS(journal, commit_transaction),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( char, sync_commit )
+ __field( int, transaction )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = journal->j_fs_dev->bd_dev;
+ __entry->sync_commit = commit_transaction->t_synchronous_commit;
+ __entry->transaction = commit_transaction->t_tid;
+ ),
+
+ TP_printk("dev %d,%d transaction %d sync %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->transaction, __entry->sync_commit)
+);
+
+TRACE_EVENT(jbd_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 %d,%d from %u to %u offset %lu freed %lu",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->tail_sequence, __entry->first_tid,
+ __entry->block_nr, __entry->freed)
+);
+
+TRACE_EVENT(jbd_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_JBD_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
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