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From: Zach Brown <zach.brown@oracle.com>
To: Ulrich Drepper <drepper@redhat.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>,
	linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
	mingo@elte.hu, tglx@linutronix.de, torvalds@linux-foundation.org
Subject: Re: [PATCHv4 0/6] sys_indirect system call
Date: Tue, 20 Nov 2007 10:08:31 -0800	[thread overview]
Message-ID: <4743229F.2060805@oracle.com> (raw)
In-Reply-To: <4743071A.9050408@redhat.com>


> This was mentioned in one of my mails.  I added the parameter to
> accommodate Linus's and Zack's idea to use the functionality for syslets
> as well.  Not really a multiplexer, it is meant to be a "execute
> synchronously or asynchronously" flag.  In the latter case an additional
> parameter might be needed to indicate the notification mechanism.

I'm sure the additional parameter will be needed, and it might be pretty
involved.  I think the current notion of syslets needs, at the very least:

 - a userspace stack and IP to return to after going async
 - the completion context when completed async
 - a pointer to a return code when completed without blocking

We'll see.  I'm working on it.

- z

  reply	other threads:[~2007-11-20 18:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-20  6:53 [PATCHv4 0/6] sys_indirect system call Ulrich Drepper
2007-11-20  9:13 ` Eric Dumazet
2007-11-20 16:11   ` Ulrich Drepper
2007-11-20 18:08     ` Zach Brown [this message]
2007-11-20 18:17       ` Ulrich Drepper

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