Commit fc914faa authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Damien Le Moal
Browse files

ata: libata: add qc_prep tracepoint 



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: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
parent f8ec26d0

drivers/ata/libata-core.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

include/trace/events/libata.h

+9 −1
Original line number Diff line number Diff line
@@ -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),