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Date:   Thu, 3 Sep 2020 15:39:52 +0200
From:   Oleg Nesterov <oleg@redhat.com>
To:     Davidlohr Bueso <dave@stgolabs.net>
Cc:     jason.wessel@windriver.com, daniel.thompson@linaro.org,
        dianders@chromium.org, kgdb-bugreport@lists.sourceforge.net,
        linux-kernel@vger.kernel.org, Davidlohr Bueso <dbueso@suse.de>
Subject: Re: [PATCH -next] kdb: Use newer api for tasklist scanning
Message-ID: <20200903133951.GG4386@redhat.com>
References: <20200831193435.22141-1-dave@stgolabs.net>
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On 08/31, Davidlohr Bueso wrote:
>
> This kills the custom kdb_do_each_thread/kdb_while_each_thread
> calls used in kdb to iterate through all tasks. It is obsolete
> and racy to use tsk->thread_group, although in this particular
> case there is no concurrency so it doesn't matter. Still, lets
> trivially replace it for the newer one, maintaining semantics,
> of course.
>
> Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
> ---
>  kernel/debug/kdb/kdb_bt.c      | 4 ++--
>  kernel/debug/kdb/kdb_main.c    | 8 ++++----
>  kernel/debug/kdb/kdb_private.h | 4 ----
>  3 files changed, 6 insertions(+), 10 deletions(-)

Acked-by: Oleg Nesterov <oleg@redhat.com>