From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:34909 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751963AbcFETcr (ORCPT ); Sun, 5 Jun 2016 15:32:47 -0400 From: mchristi@redhat.com To: 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 Cc: Mike Christie Subject: [PATCH 06/45] dm: use op_is_write instead of checking for REQ_WRITE Date: Sun, 5 Jun 2016 14:31:46 -0500 Message-Id: <1465155145-10812-7-git-send-email-mchristi@redhat.com> In-Reply-To: <1465155145-10812-1-git-send-email-mchristi@redhat.com> References: <1465155145-10812-1-git-send-email-mchristi@redhat.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: From: Mike Christie We currently set REQ_WRITE/WRITE for all non READ IOs like discard, flush, writesame, etc. In the next patches where we no longer set up the op as a bitmap, we will not be able to detect a operation direction like writesame by testing if REQ_WRITE is set. This has dm use the op_is_write helper which will do the right thing. Signed-off-by: Mike Christie --- drivers/md/dm-io.c | 4 ++-- drivers/md/dm-kcopyd.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 50f17e3..26e9a85 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -409,7 +409,7 @@ static int sync_io(struct dm_io_client *client, unsigned int num_regions, struct io *io; struct sync_io sio; - if (num_regions > 1 && (rw & RW_MASK) != WRITE) { + if (num_regions > 1 && !op_is_write(rw)) { WARN_ON(1); return -EIO; } @@ -442,7 +442,7 @@ static int async_io(struct dm_io_client *client, unsigned int num_regions, { struct io *io; - if (num_regions > 1 && (rw & RW_MASK) != WRITE) { + if (num_regions > 1 && !op_is_write(rw)) { WARN_ON(1); fn(1, context); return -EIO; diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c index 1452ed9..9f390e4 100644 --- a/drivers/md/dm-kcopyd.c +++ b/drivers/md/dm-kcopyd.c @@ -465,7 +465,7 @@ static void complete_io(unsigned long error, void *context) io_job_finish(kc->throttle); if (error) { - if (job->rw & WRITE) + if (op_is_write(job->rw)) job->write_err |= error; else job->read_err = 1; @@ -477,7 +477,7 @@ static void complete_io(unsigned long error, void *context) } } - if (job->rw & WRITE) + if (op_is_write(job->rw)) push(&kc->complete_jobs, job); else { @@ -550,7 +550,7 @@ static int process_jobs(struct list_head *jobs, struct dm_kcopyd_client *kc, if (r < 0) { /* error this rogue job */ - if (job->rw & WRITE) + if (op_is_write(job->rw)) job->write_err = (unsigned long) -1L; else job->read_err = 1; -- 2.7.2