From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:38836 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752856AbcFETeE (ORCPT ); Sun, 5 Jun 2016 15:34:04 -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 40/45] block: move bio io prio to a new field Date: Sun, 5 Jun 2016 14:32:20 -0500 Message-Id: <1465155145-10812-41-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 In the next patch, we move drop the compat code and make the op a separate value that is hidden in bi_rw. To give the op and rq bits flags room to grow this moves prio to its own field. Signed-off-by: Mike Christie --- include/linux/bio.h | 14 ++------------ include/linux/blk_types.h | 5 ++--- 2 files changed, 4 insertions(+), 15 deletions(-) diff --git a/include/linux/bio.h b/include/linux/bio.h index 4568647..35108c2 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -47,18 +47,8 @@ #define bio_op(bio) (op_from_rq_bits((bio)->bi_rw)) #define bio_set_op_attrs(bio, op, flags) ((bio)->bi_rw |= (op | flags)) -/* - * upper 16 bits of bi_rw define the io priority of this bio - */ -#define BIO_PRIO_SHIFT (8 * sizeof(unsigned long) - IOPRIO_BITS) -#define bio_prio(bio) ((bio)->bi_rw >> BIO_PRIO_SHIFT) -#define bio_prio_valid(bio) ioprio_valid(bio_prio(bio)) - -#define bio_set_prio(bio, prio) do { \ - WARN_ON(prio >= (1 << IOPRIO_BITS)); \ - (bio)->bi_rw &= ((1UL << BIO_PRIO_SHIFT) - 1); \ - (bio)->bi_rw |= ((unsigned long) (prio) << BIO_PRIO_SHIFT); \ -} while (0) +#define bio_prio(bio) (bio)->bi_ioprio +#define bio_set_prio(bio, prio) ((bio)->bi_ioprio = prio) /* * various member access, note that bio_data should of course not be used diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 6e60baa..2738413 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -48,9 +48,8 @@ struct bio { struct block_device *bi_bdev; unsigned int bi_flags; /* status, command, etc */ int bi_error; - unsigned long bi_rw; /* bottom bits READ/WRITE, - * top bits priority - */ + unsigned long bi_rw; /* READ/WRITE */ + unsigned short bi_ioprio; struct bvec_iter bi_iter; -- 2.7.2