linux-kernel - Re: [PATCH v2 1/5] mm/page_owner: introduce struct stack_print

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Message-ID: <aOdrzAmu5zgCqT6m@localhost.localdomain>
Date: Thu, 9 Oct 2025 10:01:16 +0200
From: Oscar Salvador <osalvador@...e.de>
To: Mauricio Faria de Oliveira <mfo@...lia.com>
Cc: Michal Hocko <mhocko@...e.com>, Vlastimil Babka <vbabka@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Brendan Jackman <jackmanb@...gle.com>,
	Johannes Weiner <hannes@...xchg.org>, Zi Yan <ziy@...dia.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	kernel-dev@...lia.com
Subject: Re: [PATCH v2 1/5] mm/page_owner: introduce struct stack_print_ctx

On Wed, Oct 01, 2025 at 02:56:07PM -0300, Mauricio Faria de Oliveira wrote:
> Currently, struct seq_file.private is used as an iterator in stack_list
> by stack_start|next(), for stack_print().
> 
> Create a context struct for this, in order to add another field next.
> 
> No behavior change intended.
> 
> P.S.: page_owner_stack_open() is expanded with separate statements for
> variable definition and return just in preparation for the next patch.
> 
> Signed-off-by: Mauricio Faria de Oliveira <mfo@...lia.com>

Reviewed-by: Oscar Salvador <osalvador@...e.de>

 

-- 
Oscar Salvador
SUSE Labs