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Date: Wed, 7 Apr 2004 12:34:55 -0700
From: Andrew Morton <akpm@osdl.org>
To: Andy Isaacson <adi@hexapodia.org>
Cc: bug-coreutils@gnu.org, linux-kernel@vger.kernel.org
Subject: Re: dd PATCH: add conv=direct
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Andy Isaacson <adi@hexapodia.org> wrote:
>
> Would there be any reason to allow O_DIRECT on the read side?

Sure.  It saves CPU, avoids blowing pagecache, just as with O_DIRECT
writes.