linux-kernel - Re: [RFC PATCH V2 12/13] trace/kscand: Add tracing of scanning and migration

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Message-ID: <86a44c07-bf95-4e69-8db4-4523833b923d@amd.com>
Date: Tue, 24 Jun 2025 13:20:09 +0530
From: Raghavendra K T <raghavendra.kt@....com>
To: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
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Subject: Re: [RFC PATCH V2 12/13] trace/kscand: Add tracing of scanning and
 migration



On 6/24/2025 12:39 PM, Masami Hiramatsu (Google) wrote:
> On Tue, 24 Jun 2025 05:56:16 +0000
> Raghavendra K T <raghavendra.kt@....com> wrote:
> 
>> Add tracing support to track
>>   - start and end of scanning.
>>   - migration.
>>
>> CC: Steven Rostedt <rostedt@...dmis.org>
>> CC: Masami Hiramatsu <mhiramat@...nel.org>
>> CC: linux-trace-kernel@...r.kernel.org
>>
>> Signed-off-by: Raghavendra K T <raghavendra.kt@....com>
>> ---
>>   include/trace/events/kmem.h | 90 +++++++++++++++++++++++++++++++++++++
>>   mm/kscand.c                 |  8 ++++
>>   2 files changed, 98 insertions(+)
>>
>> diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
>> index f74925a6cf69..682c4015414f 100644
>> --- a/include/trace/events/kmem.h
>> +++ b/include/trace/events/kmem.h
>> @@ -9,6 +9,96 @@
>>   #include <linux/tracepoint.h>
>>   #include <trace/events/mmflags.h>
>>   
> 
> Please make sure the event is not exposed when it is not used.
> 
> #ifdef CONFIG_KSCAND
> 
> Thank you,
> 
[...]

Sure. Noted. Thank you :)