From: Juergen Gross Subject: Re: [PATCH 41/42] block: do not use REQ_FLUSH for tracking flush support Date: Sun, 17 Apr 2016 10:46:59 +0200 Message-ID: <57134D83.8020309@pfupf.net> References: <1460747777-8479-1-git-send-email-mchristi@redhat.com> <1460747777-8479-42-git-send-email-mchristi@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit To: mchristi@redhat.com, linux-f2fs-devel@lists.sourceforge.net, linux-ext4@vger.kernel.org, konrad.wilk@oracle.com, drbd-dev@lists.linbit.com, philipp.reisner@linbit.com, lars.ellenberg@linbit.com, linux-raid@vger.kernel.org, dm-devel@redhat.com, linux-fsdevel@vger.kernel.org, linux-bcache@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, linux-mtd@lists.infradead.org, target-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, osd-dev@open-osd.org, xfs@oss.sgi.com, ocfs2-devel@oss.oracle.com Return-path: In-Reply-To: <1460747777-8479-42-git-send-email-mchristi@redhat.com> Sender: linux-bcache-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On 15/04/16 21:16, mchristi@redhat.com wrote: > From: Mike Christie > > The last patch added a REQ_OP_FLUSH for request_fn drivers > and the next patch renames REQ_FLUSH to REQ_PREFLUSH which > will be used by file systems and make_request_fn drivers so > they can send a write/flush combo. > > This patch drops xen's use of REQ_FLUSH to track if it supports > REQ_OP_FLUSH requests, so REQ_FLUSH can be deleted. > > v7: > - Fix feature_flush/fua use. > > v6: > - Dropped parts of patch handled by Jens's QUEUE_FLAG_WC/FUA > patches and modified patch to check feature_flush/fua bits. > > Signed-off-by: Mike Christie > Reviewed-by: Hannes Reinecke > Cc: Juergen Gross Acked-by: Juergen Gross Juergen