linux-kernel - Re: kvm aio wishlist

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Message-ID: <492C1904.9020309@oracle.com>
Date:	Tue, 25 Nov 2008 07:25:56 -0800
From:	Zach Brown <zach.brown@...cle.com>
To:	Jens Axboe <jens.axboe@...cle.com>
CC:	Ingo Molnar <mingo@...e.hu>, Avi Kivity <avi@...hat.com>,
	suparna@...ibm.com, linux-aio@...ck.org,
	Jeff Moyer <jmoyer@...hat.com>,
	Anthony Liguori <aliguori@...ibm.com>,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: kvm aio wishlist


> Still unsure why that stuff never got anywhere.

Changing the tid of submitting tasks makes it unsuitable for sys_io_*()
or posix aio users as it stands.  Maybe we could swap tids on the
switch, but we'd probably then have to audit the life time of tid ->
task_struct users in the kernel.

And there's still the question of what ptrace is supposed to do.

- z
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