From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Moyer Subject: Re: [PATCH 8/8] loop: use aio to perform io on the underlying file Date: Tue, 27 Oct 2009 12:01:11 -0400 Message-ID: References: <1256243157-16667-1-git-send-email-zach.brown@oracle.com> <1256243157-16667-2-git-send-email-zach.brown@oracle.com> <1256243157-16667-3-git-send-email-zach.brown@oracle.com> <1256243157-16667-4-git-send-email-zach.brown@oracle.com> <1256243157-16667-5-git-send-email-zach.brown@oracle.com> <1256243157-16667-6-git-send-email-zach.brown@oracle.com> <1256243157-16667-7-git-send-email-zach.brown@oracle.com> <1256243157-16667-8-git-send-email-zach.brown@oracle.com> <1256243157-16667-9-git-send-email-zach.brown@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org To: Zach Brown Return-path: Received: from mx1.redhat.com ([209.132.183.28]:11849 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755699AbZJ0QBL (ORCPT ); Tue, 27 Oct 2009 12:01:11 -0400 In-Reply-To: <1256243157-16667-9-git-send-email-zach.brown@oracle.com> (Zach Brown's message of "Thu, 22 Oct 2009 13:25:57 -0700") Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Zach Brown writes: > This uses the new kernel aio interface to process loopback IO by submitting > concurrent direct aio. Previously loop's IO was serialized by synchronus > processing in a thread. It specifies io memory by directly referencing the > pages in the incoming bios rather than kmapping them. Wow, that's pretty straight-forward. Nice job. Cheers, Jeff