linux-kernel - Re: [RFC, PATCH] Extensible AIO interface

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Date:	Tue, 02 Oct 2012 12:34:33 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Kent Overstreet <koverstreet@...gle.com>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	tytso@...gle.com, tj@...nel.org,
	Dave Kleikamp <dave.kleikamp@...cle.com>,
	Zach Brown <zab@...bo.net>,
	Dmitry Monakhov <dmonakhov@...nvz.org>,
	"Maxim V. Patlasov" <mpatlasov@...allels.com>,
	michael.mesnier@...el.com, jeffrey.d.skirvin@...el.com
Subject: Re: [RFC, PATCH] Extensible AIO interface

Kent Overstreet <koverstreet@...gle.com> writes:

> So, I and other people keep running into things where we really need to
> add an interface to pass some auxiliary... stuff along with a pread() or
> pwrite().

How would you enumerate this? 
How does the application know what the underlying stack supports/need?
How is versioning handled?

Frankly, in this form it looks more like a special purpose hack than a general
facility. 

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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