Re: [perfmon] Re: [perfmon2] perfmon2 merge news

[Nick Piggin]

On Wednesday 14 November 2007 23:07, David Miller wrote:
> From: Paul Mackerras <paulus@xxxxxxxxx>
> Date: Wed, 14 Nov 2007 23:03:24 +1100
>
> > You're suggesting that the behaviour of a read() should depend on what
> > was in the buffer before the read?  Gack!  Surely you have better
> > taste than that?
>
> Absolutely that's what I mean, it's atomic and gives you exactly what
> you need.
>
> I see nothing wrong or gross with these semantics.  Nothing in the
> "book of UNIX" specifies that for a device or special file the passed
> in buffer cannot contain input control data.

True, but is it now any so different to an ioctl?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/