Re: [patch 00/11] ANNOUNCE: "Syslets", generic asynchronous systemcall support

From: Davide Libenzi
Date: Tue Feb 13 2007 - 15:22:28 EST


On Tue, 13 Feb 2007, Ingo Molnar wrote:

> As it might be obvious to some of you, the syslet subsystem takes many
> ideas and experience from my Tux in-kernel webserver :) The syslet code
> originates from a heavy rewrite of the Tux-atom and the Tux-cachemiss
> infrastructure.
>
> Open issues:
>
> - the 'TID' of the 'head' thread currently varies depending on which
> thread is running the user-space context.
>
> - signal support is not fully thought through - probably the head
> should be getting all of them - the cachemiss threads are not really
> interested in executing signal handlers.
>
> - sys_fork() and sys_async_exec() should be filtered out from the
> syscalls that are allowed - first one only makes sense with ptregs,
> second one is a nice kernel recursion thing :) I didnt want to
> duplicate the sys_call_table though - maybe others have a better
> idea.

If this is going to be a generic AIO subsystem:

- Cancellation of peding request



- Davide


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