Re: [RFC] Wine speedup through kernel module

From: David Howells (David.Howells@nexor.co.uk)
Date: Mon Sep 11 2000 - 04:08:24 EST


Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de> wrote:
> What is the difference to get one reserved syscall and multiplex it ?

This is what I'd like to be able to do... that way the checks that ioctl()
performs can be avoided.

However, there are problems with doing this:

(1) There's currently no definitive way to grab an unused syscall, whether a
    random one or a pre-determined one.

(2) The syscall table is not exported...

(3) Even if it was... just filling in the syscall slot from a module means
    that it is possible for the module to be unloaded whilst the syscall is in
    use.

David Howells
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