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Date: Tue, 06 Feb 2001 22:26:18 +0100
From: Manfred Spraul <manfred@colorfullife.com>
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To: Jens Axboe <axboe@suse.de>
CC: Ben LaHaise <bcrl@redhat.com>, Ingo Molnar <mingo@elte.hu>,
        Linus Torvalds <torvalds@transmeta.com>,
        "Stephen C. Tweedie" <sct@redhat.com>,
        Alan Cox <alan@lxorguk.ukuu.org.uk>, Steve Lord <lord@sgi.com>,
        Linux Kernel List <linux-kernel@vger.kernel.org>,
        kiobuf-io-devel@lists.sourceforge.net, Ingo Molnar <mingo@redhat.com>
Subject: Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait
In-Reply-To: <Pine.LNX.4.30.0102061521270.15204-100000@today.toronto.redhat.com> <3A806177.59304E88@colorfullife.com> <20010206215053.G2975@suse.de>
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Jens Axboe wrote:
> 
> > Several kernel functions need a "dontblock" parameter (or a callback, or
> > a waitqueue address, or a tq_struct pointer).
> 
> We don't even need that, non-blocking is implicitly applied with READA.
>
READA just returns - I doubt that the aio functions should poll until
there are free entries in the request queue.

The pending aio requests should be "included" into the wait_for_requests
waitqueue (ok, they don't have a process context, thus a wait queue
entry doesn't help, but these requests belong into that wait queue)

--
	Manfred
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