From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Schmitz <schmitzmic@gmail.com>
Subject: Re: [PATCH 0/9] Refactoring exit
Date: Mon, 28 Jun 2021 10:59:51 +1200
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To: Al Viro <viro@zeniv.linux.org.uk>, "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>, linux-arch <linux-arch@vger.kernel.org>, Jens Axboe <axboe@kernel.dk>, Oleg Nesterov <oleg@redhat.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Richard Henderson <rth@twiddle.net>, Ivan Kokshaysky <ink@jurassic.park.msu.ru>, Matt Turner <mattst88@gmail.com>, alpha <linux-alpha@vger.kernel.org>, Geert Uytterhoeven <geert@linux-m68k.org>, linux-m68k <linux-m68k@lists.linux-m68k.org>, Arnd Bergmann <arnd@kernel.org>, Tejun Heo <tj@kernel.org>, Kees Cook <keescook@chromium.org>

On 28/06/21 10:13 am, Al Viro wrote:

> On Thu, Jun 24, 2021 at 10:45:23PM +0000, Al Viro wrote:
>
>> 13) there's bdflush(1, whatever), which is equivalent to exit(0).
>> IMO it's long past the time to simply remove the sucker.
> Incidentally, calling that from ptraced process on alpha leads to
> the same headache for tracer.  _If_ we leave it around, this is
> another candidate for "hit yourself with that special signal" -
> both alpha and m68k have that syscall, and IMO adding an asm
> wrapper for that one is over the top.
>
> Said that, we really ought to bury that thing:
>
> commit 2f268ee88abb33968501a44368db55c63adaad40
> Author: Andrew Morton <akpm@digeo.com>
> Date:   Sat Dec 14 03:16:29 2002 -0800
>
>      [PATCH] deprecate use of bdflush()
> 	
>      Patch from Robert Love <rml@tech9.net>
> 		
>      We can never get rid of it if we do not deprecate it - so do so and
>      print a stern warning to those who still run bdflush daemons.
>
> Deprecated for 18.5 years by now - I seriously suspect that we have
> some contributors younger than that...

Haven't found that warning in over 7 years' worth of console logs, and 
I'm a good candidate for running the oldest userland in existence for m68k.

Time to let it go.

Cheers,

     Michael