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

[Kienan Stewart]

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

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,