linux-kernel - Re: [GIT PULL 05/12 for v6.18] pidfs

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Message-ID: <20251001141812.GA31331@redhat.com>
Date: Wed, 1 Oct 2025 16:18:12 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Christian Brauner <brauner@...nel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Mateusz Guzik <mjguzik@...il.com>
Subject: Re: [GIT PULL 05/12 for v6.18] pidfs

On 09/26, Christian Brauner wrote:
>
> Oleg Nesterov (3):
>       pid: make __task_pid_nr_ns(ns => NULL) safe for zombie callers
...
> gaoxiang17 (1):
>       pid: Add a judgment for ns null in pid_nr_ns

Oh... I already tried to complain twice

	https://lore.kernel.org/all/20250819142557.GA11345@redhat.com/
	https://lore.kernel.org/all/20250901153054.GA5587@redhat.com/

One of these patches should be reverted. It doesn't really hurt, but it makes
no sense to check ns != NULL twice.

Oleg.