Re: Read/write counts

[Theodore Tso <tytso@mit.edu>]

On Mon, Jun 04, 2007 at 08:57:16PM +0200, Roman Zippel wrote:
> That's the last discussion about signals and I/O I can remember:
> http://www.ussg.iu.edu/hypermail/linux/kernel/0208.0/0188.html

Well, I think Linus was saying that we have to do both (where the
signal interrupts and where it doesn't), and I agree with that:

  There are enough reasons to discourage people from using uninterruptible
  sleep ("this f*cking application won't die when the network goes down")
  that I don't think this is an issue. We need to handle both cases, and
                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  while we can expand on the two cases we have now, we can't remove them. 
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Fortunately, although the -ERESTARTSYS framework is a little awkward
(and people can shoot arrows at me for creating it 15 year ago :-), we
do have a way of supporting both styles without _too_ much pain.

							- Ted