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ata: libata: add qc_prep tracepoint

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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>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
This commit is contained in:
Hannes Reinecke 2021-12-21 08:20:30 +01:00 committed by Damien Le Moal
parent f8ec26d0f5
commit fc914faad6
2 changed files with 10 additions and 1 deletions
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1
drivers/ata/libata-core.c
View File

@ -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;

10
include/trace/events/libata.h
View File

@ -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),