From: Baoquan He <baoquan.he@linux.dev>
To: Steven Rostedt <rostedt@goodmis.org>,
Ridong Chen <ridong.chen@linux.dev>
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Kairui Song <kasong@tencent.com>, Qi Zheng <qi.zheng@linux.dev>,
Shakeel Butt <shakeel.butt@linux.dev>,
Barry Song <baohua@kernel.org>,
Axel Rasmussen <axelrasmussen@google.com>,
Yuanchu Xie <yuanchu@google.com>, Wei Xu <weixugc@google.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
David Hildenbrand <david@kernel.org>,
Michal Hocko <mhocko@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
"open list:MEMORY MANAGEMENT - MGLRU (MULTI-GEN LRU)"
<linux-mm@kvack.org>, Ridong Chen <chenridong@xiaomi.com>
Subject: Re: [PATCH v2 2/3] mm/mglru: add tracepoint for scan_folios()
Date: Thu, 17 Sep 2026 09:23:39 +0800 [thread overview]
Message-ID: <aqtBG9Oyu-RVI7jv@fedora> (raw)
In-Reply-To: <20260916095122.50cbb620@robin>
On 09/16/26 at 09:51am, Steven Rostedt wrote:
> On Wed, 16 Sep 2026 10:14:31 +0800
> Baoquan He <baoquan.he@linux.dev> wrote:
>
> > > However, 'sc' is an internal structure, so sc->order cannot be accessed in
> > > TP_fast_assign(), and I don't think it is worth making scan_control an
> > > external structure just for this.
> >
> > Agree.
>
> Or what you can do is to move include/trace/events/vmscan.h to
> mm/trace_mm.h (or whatever you want to call it) and struct scan_control
> into "vmscan.h" and then you can use internal structures within the
> trace event.
Sounds very reasonable, thanks for the valuable input.
>
> Up to you, but this is what other subsystems have done.
Yeah, leave this to Ridong to decide.
next prev parent reply other threads:[~2026-09-17 1:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-11 10:29 [PATCH v2 0/3] mm/mglru: add tracepoints for scan and aging paths Ridong Chen
2026-09-11 10:29 ` [PATCH v2 1/3] mm/mglru: factor out lru_gen_seq_nr_pages() Ridong Chen
2026-09-14 7:09 ` Baolin Wang
2026-09-15 6:32 ` Baoquan He
2026-09-11 10:29 ` [PATCH v2 2/3] mm/mglru: add tracepoint for scan_folios() Ridong Chen
2026-09-14 7:47 ` Baolin Wang
2026-09-14 9:04 ` Ridong Chen
2026-09-15 11:14 ` Baoquan He
2026-09-15 12:17 ` Ridong Chen
2026-09-16 2:14 ` Baoquan He
2026-09-16 12:17 ` Ridong Chen
2026-09-17 1:07 ` Baoquan He
2026-09-17 3:12 ` Ridong Chen
2026-09-16 13:51 ` Steven Rostedt
2026-09-17 1:23 ` Baoquan He [this message]
2026-09-17 3:21 ` Ridong Chen
2026-09-11 10:29 ` [PATCH v2 3/3] mm/mglru: add tracepoint for inc_max_seq() Ridong Chen
2026-09-14 7:38 ` Baolin Wang
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