ext4: Add new tracepoint for jbd2_cleanup_journal_tail (71f2be21) · Commits · e / devices / android_kernel_samsung_universal8895

fs/jbd2/checkpoint.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -507,6 +507,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
	if (blocknr < journal->j_tail)		if (blocknr < journal->j_tail)
	freed = freed + journal->j_last - journal->j_first;		freed = freed + journal->j_last - journal->j_first;

			trace_jbd2_cleanup_journal_tail(journal, first_tid, blocknr, freed);
	jbd_debug(1,		jbd_debug(1,
	"Cleaning journal tail from %d to %d (offset %lu), "		"Cleaning journal tail from %d to %d (offset %lu), "
	"freeing %lu\n",		"freeing %lu\n",

+28 −0

Original line number	Original line	Diff line number	Diff line
	@@ -199,6 +199,34 @@ TRACE_EVENT(jbd2_checkpoint_stats,
	__entry->forced_to_close, __entry->written, __entry->dropped)		__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 */		#endif /* _TRACE_JBD2_H */

	/* This part must be outside protection */		/* This part must be outside protection */