Drop support for kernels < 4.4 from jbd instrumentation

[lttng-modules.git] / include / instrumentation / events / jbd.h

/* SPDX-License-Identifier: GPL-2.0-only */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM jbd

#if !defined(LTTNG_TRACE_JBD_H) || defined(TRACE_HEADER_MULTI_READ)
#define LTTNG_TRACE_JBD_H

#include <lttng/tracepoint-event.h>
#include <linux/jbd.h>
#include <lttng/kernel-version.h>

LTTNG_TRACEPOINT_EVENT(jbd_checkpoint,

	TP_PROTO(journal_t *journal, int result),

	TP_ARGS(journal, result),

	TP_FIELDS(
		ctf_integer(dev_t, dev, journal->j_fs_dev->bd_dev)
		ctf_integer(int, result, result)
	)
)

LTTNG_TRACEPOINT_EVENT_CLASS(jbd_commit,

	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction),

	TP_FIELDS(
		ctf_integer(dev_t, dev, journal->j_fs_dev->bd_dev)
		ctf_integer(int, transaction, commit_transaction->t_tid)
	)
)

LTTNG_TRACEPOINT_EVENT_INSTANCE(jbd_commit, jbd_start_commit,

	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction)
)

LTTNG_TRACEPOINT_EVENT_INSTANCE(jbd_commit, jbd_commit_locking,

	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction)
)

LTTNG_TRACEPOINT_EVENT_INSTANCE(jbd_commit, jbd_commit_flushing,

	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction)
)

LTTNG_TRACEPOINT_EVENT_INSTANCE(jbd_commit, jbd_commit_logging,

	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction)
)

LTTNG_TRACEPOINT_EVENT(jbd_drop_transaction,

	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction),

	TP_FIELDS(
		ctf_integer(dev_t, dev, journal->j_fs_dev->bd_dev)
		ctf_integer(int, transaction, commit_transaction->t_tid)
	)
)

LTTNG_TRACEPOINT_EVENT(jbd_end_commit,
	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction),

	TP_FIELDS(
		ctf_integer(dev_t, dev, journal->j_fs_dev->bd_dev)
		ctf_integer(int, transaction, commit_transaction->t_tid)
		ctf_integer(int, head, journal->j_tail_sequence)
	)
)

LTTNG_TRACEPOINT_EVENT(jbd_do_submit_data,
	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),

	TP_ARGS(journal, commit_transaction),

	TP_FIELDS(
		ctf_integer(dev_t, dev, journal->j_fs_dev->bd_dev)
		ctf_integer(int, transaction, commit_transaction->t_tid)
	)
)

LTTNG_TRACEPOINT_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_FIELDS(
		ctf_integer(dev_t, dev, journal->j_fs_dev->bd_dev)
		ctf_integer(tid_t, tail_sequence, journal->j_tail_sequence)
		ctf_integer(tid_t, first_tid, first_tid)
		ctf_integer(unsigned long, block_nr, block_nr)
		ctf_integer(unsigned long, freed, freed)
	)
)

LTTNG_TRACEPOINT_EVENT_MAP(journal_write_superblock,

	jbd_journal_write_superblock,

	TP_PROTO(journal_t *journal, int write_op),

	TP_ARGS(journal, write_op),

	TP_FIELDS(
		ctf_integer(dev_t, dev, journal->j_fs_dev->bd_dev)
		ctf_integer(int, write_op, write_op)
	)
)

#endif /* LTTNG_TRACE_JBD_H */

/* This part must be outside protection */
#include <lttng/define_trace.h>