* Michal Hocko <mho...@kernel.org> wrote: > > > Why? Each syscall already is killable as the task might be killed by the > > > OOM > > > killer. > > > > Not all syscalls are interruptible - for example sys_sync() isn't: > > I guess we are talking past each other. [...]
Heh, you are being polite, I think what happened is that I was being dense and didn't understand your point: > [...] What I meant was that while all syscalls are allowed to not return to > the > userspace because the task might get killed but not all of them accept to get > interrupted by a signal and return with EINTR. None of the man page of mmap, > mremap, mlock, mprotect list EINTR as a possibility so I would be really > afraid > of returning an unexpected error code. Indeed. > Does this make more sense now? It does! Thanks, Ingo