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Add kernel probes for supplementary subsystems
[lttng-modules.git] / instrumentation / events / lttng-module / jbd.h
diff --git a/instrumentation/events/lttng-module/jbd.h b/instrumentation/events/lttng-module/jbd.h
new file mode 100644 (file)
index 0000000..97ba1e5
--- /dev/null
+++ b/instrumentation/events/lttng-module/jbd.h
@@ -0,0 +1,243 @@
+#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(
+               tp_assign(dev, journal->j_fs_dev->bd_dev);
+               tp_assign(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                     )
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               __field(        char,   sync_commit             )
+#endif
+               __field(        int,    transaction             )
+       ),
+
+       TP_fast_assign(
+               tp_assign(dev, journal->j_fs_dev->bd_dev);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               tp_assign(sync_commit, commit_transaction->t_synchronous_commit);
+#endif
+               tp_assign(transaction, commit_transaction->t_tid);
+       ),
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+       TP_printk("dev %d,%d transaction %d sync %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                 __entry->transaction, __entry->sync_commit)
+#else
+       TP_printk("dev %d,%d transaction %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                 __entry->transaction)
+#endif
+)
+
+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                     )
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               __field(        char,   sync_commit             )
+#endif
+               __field(        int,    transaction             )
+       ),
+
+       TP_fast_assign(
+               tp_assign(dev, journal->j_fs_dev->bd_dev);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               tp_assign(sync_commit, commit_transaction->t_synchronous_commit);
+#endif
+               tp_assign(transaction, commit_transaction->t_tid);
+       ),
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+       TP_printk("dev %d,%d transaction %d sync %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                 __entry->transaction, __entry->sync_commit)
+#else
+       TP_printk("dev %d,%d transaction %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                 __entry->transaction)
+#endif
+)
+
+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                     )
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               __field(        char,   sync_commit             )
+#endif
+               __field(        int,    transaction             )
+               __field(        int,    head                    )
+       ),
+
+       TP_fast_assign(
+               tp_assign(dev, journal->j_fs_dev->bd_dev);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               tp_assign(sync_commit, commit_transaction->t_synchronous_commit);
+#endif
+               tp_assign(transaction, commit_transaction->t_tid);
+               tp_assign(head, journal->j_tail_sequence);
+       ),
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+       TP_printk("dev %d,%d transaction %d sync %d head %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                 __entry->transaction, __entry->sync_commit, __entry->head)
+#else
+       TP_printk("dev %d,%d transaction %d head %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                 __entry->transaction, __entry->head)
+#endif
+)
+
+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                     )
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               __field(        char,   sync_commit             )
+#endif
+               __field(        int,    transaction             )
+       ),
+
+       TP_fast_assign(
+               tp_assign(dev, journal->j_fs_dev->bd_dev);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+               tp_assign(sync_commit, commit_transaction->t_synchronous_commit);
+#endif
+               tp_assign(transaction, commit_transaction->t_tid);
+       ),
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
+       TP_printk("dev %d,%d transaction %d sync %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                  __entry->transaction, __entry->sync_commit)
+#else
+       TP_printk("dev %d,%d transaction %d",
+                 MAJOR(__entry->dev), MINOR(__entry->dev),
+                  __entry->transaction)
+#endif
+)
+
+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(
+               tp_assign(dev, journal->j_fs_dev->bd_dev);
+               tp_assign(tail_sequence, journal->j_tail_sequence);
+               tp_assign(first_tid, first_tid);
+               tp_assign(block_nr, block_nr);
+               tp_assign(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(
+               tp_assign(dev, journal->j_fs_dev->bd_dev);
+               tp_assign(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 "../../../probes/define_trace.h"
LTTng 2.0/0.x modules
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