Re: [lttng-dev] [PATCH 3/3] vmscan: drop isolate_mode (v6.7+)

[Kienan Stewart via lttng-dev <lttng-dev@lists.lttng.org>]

Hi Bruce,

thanks for the patches! There's a similar series waiting for review: 
https://review.lttng.org/q/topic:%22fix-linux-6.7.0-rc1%22

thanks,
kienan

On 2023-11-23 14:32, Bruce Ashfield via lttng-dev wrote:
> From: Bruce Ashfield <bruce.ashfield@gmail.com>
> 
> commit 3dfbb555c98ac55b9 [mm, vmscan: remove ISOLATE_UNMAPPED]
> makes the isolate_mode parameter unused, so it is removed.
> 
> This updates the event to match.
> 
> Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
> ---
> 
> Repeating the comment from patch 1 & 2 of this series:
> 
> Someone else may or may not already have this in flight,
> but I didn't see anything on the list or in the git
> repo.
> 
> I ran into this failure when working on the v6.7-rc
> kernel as part of yocto project kernel updates.
> 
> Tweak as necessary, as I'm no expert in the right way
> to version these sort of changes.
> 
> Bruce
> 
>   include/instrumentation/events/mm_vmscan.h | 10 +++++++++-
>   1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/include/instrumentation/events/mm_vmscan.h b/include/instrumentation/events/mm_vmscan.h
> index e7e9b613..a3e9ddf2 100644
> --- a/include/instrumentation/events/mm_vmscan.h
> +++ b/include/instrumentation/events/mm_vmscan.h
> @@ -343,12 +343,18 @@ LTTNG_TRACEPOINT_EVENT(mm_vmscan_lru_isolate,
>   		unsigned long nr_scanned,
>   		unsigned long nr_skipped,
>   		unsigned long nr_taken,
> +#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(6,7,0))
>   		isolate_mode_t isolate_mode,
> +#endif
>   		int lru
>   	),
>   
>   	TP_ARGS(classzone_idx, order, nr_requested, nr_scanned, nr_skipped,
> -		nr_taken, isolate_mode, lru
> +		nr_taken,
> +#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(6,7,0))
> +		isolate_mode,
> +#endif
> +		lru
>   	),
>   
>   	TP_FIELDS(
> @@ -358,7 +364,9 @@ LTTNG_TRACEPOINT_EVENT(mm_vmscan_lru_isolate,
>   		ctf_integer(unsigned long, nr_scanned, nr_scanned)
>   		ctf_integer(unsigned long, nr_skipped, nr_skipped)
>   		ctf_integer(unsigned long, nr_taken, nr_taken)
> +#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(6,7,0))
>   		ctf_integer(isolate_mode_t, isolate_mode, isolate_mode)
> +#endif
>   		ctf_integer(int, lru, lru)
>   	)
>   )
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