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@xxxxxxxxx> Date: Sat Dec 14 03:16:29 2002 -0800 [PATCH] deprecate use of bdflush() Patch from Robert Love <rml@xxxxxxxxx> 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...