From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Cook Subject: Re: [PATCH] dm-crypt: add mapping table option to allowing discard requests Date: Thu, 14 Jul 2011 18:56:03 -0600 Message-ID: <4E1F9023.5020801@deserettechnology.com> References: <1310644590-14438-1-git-send-email-mbroz@redhat.com> Reply-To: jeff@deserettechnology.com, device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1310644590-14438-1-git-send-email-mbroz@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development Cc: list@eworm.de, Milan Broz List-Id: dm-devel.ids On 07/14/2011 05:56 AM, Milan Broz wrote: > Add optional parameter field to dmcrypt table and support > "allow_discards" option. > > Discard requests bypass crypt queue processing, bio > request is simple remapped to underlying device. > > Note that discard will be never enabled by default because > of security consequences, it is up to administrator > to enable it for encrypted devices. > > (Note that userspace cryptsetup will not understand new > optional parameters yet, support for this will come later.) > > Signed-off-by: Milan Broz > [snip] Thanks very much for this patch Milan. I will try compiling it shortly and see where things go -- are you expecting this to be submitted for inclusion in mainline soon? Thanks again. From Jeff