From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rusty Russell Subject: Re: [PATCH] virtio-blk: allow more than one in-flight request Date: Fri, 28 Mar 2008 10:22:54 +1100 Message-ID: <200803281022.54952.rusty@rustcorp.com.au> References: <20080327162948.GB8659@dmt> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel To: Marcelo Tosatti Return-path: In-Reply-To: <20080327162948.GB8659@dmt> Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces@lists.sourceforge.net Errors-To: kvm-devel-bounces@lists.sourceforge.net List-Id: kvm.vger.kernel.org On Friday 28 March 2008 03:29:48 Marcelo Tosatti wrote: > Allow more than one in-flight request in the virtio ring. This allows > the host driver to submit requests in parallel. > > Signed-off-by: Marcelo Tosatti For a moment, I thought this was true and felt very stupid :) For the record, the mempool_alloc becomes kmalloc with fallback to the pool. We only need one because we can make progress with one request at a time if we have to. Cheers, Rusty. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace