linux-kernel - Re: [patch 00/11] ANNOUNCE: "Syslets", generic asynchronous system call support

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Message-ID: <20070214110736.35d83b2a@localhost.localdomain>
Date:	Wed, 14 Feb 2007 11:07:36 +0000
From:	Alan <alan@...rguk.ukuu.org.uk>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@....com.au>,
	Ulrich Drepper <drepper@...hat.com>,
	Zach Brown <zach.brown@...cle.com>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	"David S. Miller" <davem@...emloft.net>,
	Benjamin LaHaise <bcrl@...ck.org>,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch 00/11] ANNOUNCE: "Syslets", generic asynchronous system
 call support

> > Ooooohh. OpenVMS lives forever ;) Me likeee ;)
> 
> hm, i dont know OpenVMS - but googled around a bit for 'VMS 
> asynchronous' and it gave me this:

VMS had SYS$QIO which is asynchronous I/O queueing with completions of
sorts. You had to specifically remember if you wanted to a synchronous
I/O.

Nothing afaik quite like series of commands batched async, although VMS
has a call for everything else so its possible there is one buried in the
back of volume 347 of the grey wall ;)

Looking at the completion side I'm not 100% sure we need async_wait given
the async batches can include futex operations...

Alan
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