From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Snitzer Subject: Re: [PATCH 1.5/2] dm-stripe: optimize sector division Date: Tue, 27 Jul 2010 19:10:36 -0400 Message-ID: <20100727231036.GA5563@redhat.com> References: Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Mikulas Patocka Cc: dm-devel@redhat.com, Alasdair G Kergon List-Id: dm-devel.ids On Tue, Jul 27 2010 at 6:12pm -0400, Mikulas Patocka wrote: > Optimize sector division > > Optimize sector division --- if the number of stripes is a power of two, > we don't have to do expensive division and can do shift and mask instead. > > Signed-off-by: Mikulas Patocka (Tested and) Reviewed-by: Mike Snitzer