Re: [RFC] Wine speedup through kernel module

[J. Robert von Behren]

David Howells wrote:

>  (2) Some sort of support for (dynamically allocated) system calls implemented
>      in modules.

FWIW, this can be done with relatively low overhead by creating a
miscelaneous character device, and just using write() to write in the
arguments.  This is a bit worse than passing things through registers,
but doesn't seem all that bad.

Nonetheless, having some entries in the syscall table that are
designated as "dynamically allocatable" would be a nifty trick.  If the
kernel managed these, modules coluld safely grab a few at load time, and
then declare which indices to use via a /proc file.

-Rob von Behren
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