From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mikulas Patocka Subject: [patch 0/2] dm-delay flush patches Date: Tue, 17 Apr 2018 00:33:12 +0200 Message-ID: <20180416223312.122871155@debian.vm> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: 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 , Mike Snitzer , "Alasdair G. Kergon" , Zdenek Kabelac Cc: dm-devel@redhat.com List-Id: dm-devel.ids Hi These patches extend dm-delay, so that the user can select separate delay for flush requests. Zdenek needs to create a device with one slow sector for the purpose of testing, so he creates a device that has three targets: linear,delay,linear The problem with this setup is that flushes are forwarded to all three devices and it skews test results. So I created this patchset that allows to set zero delay for flushes. Mikulas