linux-kernel - Re: [RFC PATCH v2 15/21] loop: use aio to perform io on the underlying file

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Message-ID: <4F91A161.4040005@zabbo.net>
Date:	Fri, 20 Apr 2012 13:48:17 -0400
From:	Zach Brown <zab@...bo.net>
To:	Jeff Moyer <jmoyer@...hat.com>
CC:	Dave Kleikamp <dave.kleikamp@...cle.com>,
	"Maxim V. Patlasov" <mpatlasov@...allels.com>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v2 15/21] loop: use aio to perform io on the underlying
 file


> Bypassing the page cache is different from bypassing the underlying
> device's cache.  O_DIRECT does not mean "straight to platter".

Sure, sure, you and I know that.

> They most certainly should be!

Are they?

I have my guess.

- z
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