[lttng-dev] [PATCH] Fix mm_vmscan_lru_isolate tracepoint for RHEL 9.4 kernel

[Mathieu Desnoyers]

On 2024-05-17 12:04, Kienan Stewart via lttng-dev wrote:
> Hi Martin,
> 
> thanks for the patch.
> 
> I changed the version range slightly. The RHEL kernel 5.14.0-427.13.1 
> still has the `isolate_mode` parameter in the `mm_vmscan_lru_isolate` 
> tracepoint; it was only removed in 5.14.0-427.16.1.
> 
> I also forward ported the patch to the master branch.
> 
> The updated patches will be reviewed at: 
> https://review.lttng.org/q/topic:%22buildfix-el9.4%22

Merged into lttng-modules master and stable-2.13, thanks!

Mathieu

> 
> thanks,
> kienan
> 
> On 5/17/24 10:30 AM, Martin Hicks via lttng-dev wrote:
>>
>>
>> Redhat has moved to using the format first found in the 6.7 kernel
>> for the mm_vmscan_lru_isolate tracepoint.
>>
>> Signed-off-by: Martin Hicks <martin at sr-research.com>
>> ---
>>   include/instrumentation/events/mm_vmscan.h | 4 +++-
>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/include/instrumentation/events/mm_vmscan.h 
>> b/include/instrumentation/events/mm_vmscan.h
>> index ea6f4b7..49a9eae 100644
>> --- a/include/instrumentation/events/mm_vmscan.h
>> +++ b/include/instrumentation/events/mm_vmscan.h
>> @@ -369,7 +369,9 @@ LTTNG_TRACEPOINT_EVENT_MAP(mm_shrink_slab_end,
>>   )
>>   #endif
>> -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,7,0))
>> +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,7,0) || \
>> +     LTTNG_RHEL_KERNEL_RANGE(5,14,0,427,0,0, 5,15,0,0,0,0))
>> +
>>   LTTNG_TRACEPOINT_EVENT(mm_vmscan_lru_isolate,
>>       TP_PROTO(int classzone_idx,
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-- 
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com