linux-kernel - Re: [PATCH v2 7/7] netclassid: use thread_group_leader(p) in update_classid

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Message-Id: <20260126125048.323a281527fb2554c96f40bf@linux-foundation.org>
Date: Mon, 26 Jan 2026 12:50:48 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Oleg Nesterov <oleg@...hat.com>
Cc: Alice Ryhl <aliceryhl@...gle.com>, Boris Brezillon
 <boris.brezillon@...labora.com>, Christian König
 <christian.koenig@....com>, Felix Kuehling <felix.kuehling@....com>, Leon
 Romanovsky <leon@...nel.org>, Steven Price <steven.price@....com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
 <pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
 linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
 dri-devel@...ts.freedesktop.org, linux-rdma@...r.kernel.org,
 netdev@...r.kernel.org
Subject: Re: [PATCH v2 7/7] netclassid: use thread_group_leader(p) in
 update_classid_task()

On Sun, 25 Jan 2026 17:08:00 +0100 Oleg Nesterov <oleg@...hat.com> wrote:

> Cleanup and preparation to simplify the next changes.
> 

"next changes".  This is the final patch?

> --- a/net/core/netclassid_cgroup.c
> +++ b/net/core/netclassid_cgroup.c
> @@ -93,7 +93,7 @@ static void update_classid_task(struct task_struct *p, u32 classid)
>  	/* Only update the leader task, when many threads in this task,
>  	 * so it can avoid the useless traversal.
>  	 */
> -	if (p != p->group_leader)
> +	if (!thread_group_leader(p))
>  		return;
>  
>  	do {
> -- 
> 2.52.0