linux-kernel - Re: [PATCH -next] mm: memcg: use meaningful error code for return value

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Message-ID: <Zjjg60ZW-d7r-DS9@casper.infradead.org>
Date: Mon, 6 May 2024 14:53:47 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Xiu Jianfeng <xiujianfeng@...wei.com>
Cc: hannes@...xchg.org, mhocko@...nel.org, roman.gushchin@...ux.dev,
	shakeel.butt@...ux.dev, muchun.song@...ux.dev,
	akpm@...ux-foundation.org, cgroups@...r.kernel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] mm: memcg: use meaningful error code for return
 value

On Mon, May 06, 2024 at 01:36:43PM +0000, Xiu Jianfeng wrote:
> alloc_mem_cgroup_per_node_info() returns 1 if failed, use -ENOMEM
> instead, which is more meaningful.

This should probably be changed to return true/false instead of
an int.