From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758802Ab2IGW7j (ORCPT ); Fri, 7 Sep 2012 18:59:39 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:65402 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751686Ab2IGW7e (ORCPT ); Fri, 7 Sep 2012 18:59:34 -0400 From: Kent Overstreet To: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, dm-devel@redhat.com Cc: Kent Overstreet , tj@kernel.org, axboe@kernel.dk Subject: [PATCH 0/9] Prep work for immutable bio vecs Date: Fri, 7 Sep 2012 15:59:11 -0700 Message-Id: <1347058760-30794-1-git-send-email-koverstreet@google.com> X-Mailer: git-send-email 1.7.12 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Random assortment of refactoring and trivial cleanups. Immutable bio vecs and efficient bio splitting require auditing and removing pretty much all bi_idx uses, among other things. The reason is that with immutable bio vecs we can't use the bvec array directly; if we have a partially completed bvec, that'll be indicated with a field in struct bvec_iter (which gets embedded in struct bio) - bi_bvec_done. bio_for_each_segments() will handle this transparently, so code needs to be converted to use it or some other generic accessor. Also, bio splitting means that when a driver gets a bio, bi_idx and bi_bvec_done may both be nonzero. Again, just need to use generic accessors. Kent Overstreet (9): block: Convert integrity to bvec_alloc_bs(), and a bugfix block: Add bio_advance() block: Refactor blk_update_request() md: Convert md_trim_bio() to use bio_advance() block: Add bio_end() block: Use bio_sectors() more consistently block: Don't use bi_idx in bio_split() or require it to be 0 block: Remove bi_idx references block: Remove some unnecessary bi_vcnt usage block/blk-core.c | 86 ++++----------------- block/cfq-iosched.c | 7 +- block/deadline-iosched.c | 2 +- drivers/block/aoe/aoeblk.c | 2 +- drivers/block/aoe/aoecmd.c | 2 +- drivers/block/brd.c | 3 +- drivers/block/drbd/drbd_req.c | 8 +- drivers/block/floppy.c | 1 - drivers/block/pktcdvd.c | 8 +- drivers/block/ps3vram.c | 2 +- drivers/md/dm-raid1.c | 2 +- drivers/md/dm-stripe.c | 2 +- drivers/md/dm-verity.c | 4 +- drivers/md/faulty.c | 6 +- drivers/md/linear.c | 3 +- drivers/md/md.c | 19 ++--- drivers/md/raid0.c | 9 +-- drivers/md/raid1.c | 21 +++-- drivers/md/raid10.c | 28 +++---- drivers/md/raid5.c | 22 +++--- drivers/message/fusion/mptsas.c | 6 +- drivers/s390/block/dcssblk.c | 3 +- drivers/scsi/libsas/sas_expander.c | 6 +- drivers/scsi/mpt2sas/mpt2sas_transport.c | 10 +-- fs/bio-integrity.c | 128 ++++++++++--------------------- fs/bio.c | 48 +++++++++++- fs/btrfs/extent_io.c | 3 +- fs/buffer.c | 1 - fs/gfs2/lops.c | 2 +- fs/jfs/jfs_logmgr.c | 2 - fs/logfs/dev_bdev.c | 5 -- include/linux/bio.h | 8 +- include/trace/events/block.h | 10 +-- mm/page_io.c | 1 - 34 files changed, 192 insertions(+), 278 deletions(-) -- 1.7.12