On Wed, Sep 09, 2020 at 07:59:44PM +0200, Vlastimil Babka wrote: > - Exit also on other signals such as SIGABRT, SIGTERM? If I write to drop_caches > and think it's too long, I would prefer to kill it by ctrl-c and not just kill > -9. Dunno if the canonical way of testing for this is if > (signal_pending(current)) or differently. fatal_signal_pending() is the canonical way to do it. If your task has installed a signal handler for ABRT or TERM, that's its prerogative, but it's chosen not to get killed, and it's not allowed to see short reads/writes, so we can't break out early.
