linux-kernel - Re: [PATCH v4 2/2] mm/vmscan: add tracepoint and reason for kswapd

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Message-ID: <20260123124528.3d118cca@gandalf.local.home>
Date: Fri, 23 Jan 2026 12:45:28 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: Jiayuan Chen <jiayuan.chen@...ux.dev>
Cc: linux-mm@...ck.org, Jiayuan Chen <jiayuan.chen@...pee.com>, Shakeel Butt
 <shakeel.butt@...ux.dev>, Johannes Weiner <hannes@...xchg.org>, Andrew
 Morton <akpm@...ux-foundation.org>, David Hildenbrand <david@...nel.org>,
 Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, "Liam R. Howlett"
 <Liam.Howlett@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, Mike Rapoport
 <rppt@...nel.org>, Suren Baghdasaryan <surenb@...gle.com>, Michal Hocko
 <mhocko@...e.com>, Axel Rasmussen <axelrasmussen@...gle.com>, Yuanchu Xie
 <yuanchu@...gle.com>, Wei Xu <weixugc@...gle.com>, Masami Hiramatsu
 <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Brendan Jackman <jackmanb@...gle.com>, Zi Yan <ziy@...dia.com>, Qi Zheng
 <zhengqi.arch@...edance.com>, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] mm/vmscan: add tracepoint and reason for
 kswapd_failures reset

On Tue, 20 Jan 2026 10:43:49 +0800
Jiayuan Chen <jiayuan.chen@...ux.dev> wrote:

> Acked-by: Shakeel Butt <shakeel.butt@...ux.dev>
> Suggested-by: Johannes Weiner <hannes@...xchg.org>
> Signed-off-by: Jiayuan Chen <jiayuan.chen@...pee.com>
> Signed-off-by: Jiayuan Chen <jiayuan.chen@...ux.dev>
> ---
>  include/linux/mmzone.h        | 19 ++++++++++---
>  include/trace/events/vmscan.h | 51 +++++++++++++++++++++++++++++++++++
>  mm/memory-tiers.c             |  2 +-
>  mm/page_alloc.c               |  4 +--
>  mm/show_mem.c                 |  3 +--
>  mm/vmscan.c                   | 29 +++++++++++++-------
>  mm/vmstat.c                   |  2 +-
>  7 files changed, 91 insertions(+), 19 deletions(-)

From a tracing POV:

Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>

-- Steve