diff mbox series

[22/73] libata: add qc_prep tracepoint

Message ID 20211208163255.114660-23-hare@suse.de
State New
Headers show
Series libata: rework logging, take II | expand

Commit Message

Hannes Reinecke Dec. 8, 2021, 4:32 p.m. UTC
Add tracepoint for ata_qc_prep().

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(-)

Comments

Sergei Shtylyov Dec. 9, 2021, 8:42 a.m. UTC | #1
On 08.12.2021 19:32, Hannes Reinecke wrote:

> Add tracepoint for ata_qc_prep().

    You're also adding a tracepoint for ata_qc_issue...

> 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/include/trace/events/libata.h b/include/trace/events/libata.h
> index 7d48e804b889..360f99980b44 100644
> --- a/include/trace/events/libata.h
> +++ b/include/trace/events/libata.h
[...]
> @@ -235,6 +235,14 @@ 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),

MBR, Sergey
Hannes Reinecke Dec. 9, 2021, 11:14 a.m. UTC | #2
On 12/9/21 9:42 AM, Sergei Shtylyov wrote:
> On 08.12.2021 19:32, Hannes Reinecke wrote:
> 
>> Add tracepoint for ata_qc_prep().
> 
>    You're also adding a tracepoint for ata_qc_issue...
> 
Actually, no.

I'm converting the existing tracepoint for ata_qc_issue into a template,
and then adding tracepoints for ata_qc_prep and ata_qc_issue based on
that template.

But I can make a note of this in the patch description.

Cheers,

Hannes
Sergei Shtylyov Dec. 9, 2021, 12:47 p.m. UTC | #3
On 09.12.2021 14:14, Hannes Reinecke wrote:

[...]
>>> Add tracepoint for ata_qc_prep().
>>
>>     You're also adding a tracepoint for ata_qc_issue...
>>
> Actually, no.
> 
> I'm converting the existing tracepoint for ata_qc_issue into a template,
> and then adding tracepoints for ata_qc_prep and ata_qc_issue based on
> that template.
> 
> But I can make a note of this in the patch description.

    Please do. :-)

> Cheers,
> 
> Hannes

MBR, Sergei
diff mbox series

Patch

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index de5f4bf1c90c..a538840c652a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4931,6 +4931,7 @@  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 7d48e804b889..360f99980b44 100644
--- a/include/trace/events/libata.h
+++ b/include/trace/events/libata.h
@@ -176,7 +176,7 @@  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),
 
@@ -235,6 +235,14 @@  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),