[PATCH 07/68] libata: add qc_prep tracepoint
From: Hannes Reinecke <hare@suse.de>
Date: 2021-12-21 07:22:44
Subsystem:
libata subsystem (serial and parallel ata drivers), the rest, tracing · Maintainers:
Damien Le Moal, Niklas Cassel, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Convert the existing ata_qc_issue() tracepoint into a template, and add tracepoints for ata_qc_prep() and ata_qc_issue() based on that template. Signed-off-by: Hannes Reinecke <hare@suse.de> --- drivers/ata/libata-core.c | 1 + include/trace/events/libata.h | 10 +++++++++- 2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f23776e4a2ab..2225446f8c3b 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c@@ -4892,6 +4892,7 @@ void ata_qc_issue(struct ata_queued_cmd *qc) return; } + trace_ata_qc_prep(qc); qc->err_mask |= ap->ops->qc_prep(qc); if (unlikely(qc->err_mask)) goto err;
diff --git a/include/trace/events/libata.h b/include/trace/events/libata.h
index ec2a350d1aca..2394fc2b2831 100644
--- a/include/trace/events/libata.h
+++ b/include/trace/events/libata.h@@ -164,7 +164,7 @@ const char *libata_trace_parse_subcmd(struct trace_seq *, unsigned char, unsigned char, unsigned char); #define __parse_subcmd(c,f,h) libata_trace_parse_subcmd(p, c, f, h) -TRACE_EVENT(ata_qc_issue, +DECLARE_EVENT_CLASS(ata_qc_issue_template, TP_PROTO(struct ata_queued_cmd *qc),
@@ -223,6 +223,14 @@ TRACE_EVENT(ata_qc_issue, __entry->dev) ); +DEFINE_EVENT(ata_qc_issue_template, ata_qc_prep, + TP_PROTO(struct ata_queued_cmd *qc), + TP_ARGS(qc)); + +DEFINE_EVENT(ata_qc_issue_template, ata_qc_issue, + TP_PROTO(struct ata_queued_cmd *qc), + TP_ARGS(qc)); + DECLARE_EVENT_CLASS(ata_qc_complete_template, TP_PROTO(struct ata_queued_cmd *qc),
--
2.29.2