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([2001:df0:0:200c:34c6:84ea:412f:b792]) by smtp.gmail.com with ESMTPSA id c24sm10061304pfn.86.2021.06.27.15.59.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 27 Jun 2021 16:00:00 -0700 (PDT) Subject: Re: [PATCH 0/9] Refactoring exit To: Al Viro , "Eric W. Biederman" Cc: Linus Torvalds , linux-arch , Jens Axboe , Oleg Nesterov , Linux Kernel Mailing List , Richard Henderson , Ivan Kokshaysky , Matt Turner , alpha , Geert Uytterhoeven , linux-m68k , Arnd Bergmann , Tejun Heo , Kees Cook References: <87a6njf0ia.fsf@disp2133> <87tulpbp19.fsf@disp2133> <87zgvgabw1.fsf@disp2133> <875yy3850g.fsf_-_@disp2133> From: Michael Schmitz Message-ID: <6e283d24-7121-ae7c-d5ad-558f85858a09@gmail.com> Date: Mon, 28 Jun 2021 10:59:51 +1200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.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 > Date: Sat Dec 14 03:16:29 2002 -0800 > > [PATCH] deprecate use of bdflush() > > Patch from Robert Love > > 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