linux-kernel - [GIT PULL] MD update for 4.11

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Date:   Fri, 24 Feb 2017 07:52:06 -0800
From:   Shaohua Li <shli@...nel.org>
To:     torvalds@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
        neilb@...e.de
Subject: [GIT PULL] MD update for 4.11

Hi,

please pull MD update for 4.11, this pull mainly fixes bugs and improves
performance:
- Improve scalability for raid1 from Coly
- Improve raid5-cache read performance, disk efficiency and IO pattern from
  Song and me
- Fix a race condition of disk hotplug for linear from Coly
- A few cleanup patches from Ming and Byungchul
- Fix a memory leak from Neil
- Fix WRITE SAME IO failure from me
- Add doc for raid5-cache from me

Thanks,
Shaohua

The following changes since commit 7089db84e356562f8ba737c29e472cc42d530dbc:

  Linux 4.10-rc8 (2017-02-12 13:03:20 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/shli/md.git for-next

for you to fetch changes up to 1ec492232ed659acde8cc00b9ecc7529778e03e1:

  md/raid1: fix write behind issues introduced by bio_clone_bioset_partial (2017-02-23 11:59:44 -0800)

----------------------------------------------------------------
Byungchul Park (1):
      md/raid5: Don't reinvent the wheel but use existing llist API

Ming Lei (5):
      block: introduce bio_clone_bioset_partial()
      md: fail if mddev->bio_set can't be created
      md/raid1: use bio_clone_bioset_partial() in case of write behind
      md: remove unnecessary check on mddev
      md: fast clone bio in bio_clone_mddev()

NeilBrown (1):
      md: ensure md devices are freed before module is unloaded.

Shaohua Li (10):
      raid5: only dispatch IO from raid5d for harddisk raid
      Documentation: move MD related doc into a separate dir
      MD: add doc for raid5-cache
      md/raid5-cache: stripe reclaim only counts valid stripes
      md/raid5-cache: exclude reclaiming stripes in reclaim check
      md: disable WRITE SAME if it fails in underlayer disks
      md/raid1: fix a use-after-free bug
      md/linear: shutup lockdep warnning
      md/raid1: handle flush request correctly
      md/raid1: fix write behind issues introduced by bio_clone_bioset_partial

Song Liu (3):
      EXPORT_SYMBOL radix_tree_replace_slot
      md/r5cache: enable chunk_aligned_read with write back cache
      md/r5cache: improve journal device efficiency

colyli@...e.de (3):
      md linear: fix a race between linear_add() and linear_congested()
      RAID1: a new I/O barrier implementation to remove resync window
      RAID1: avoid unnecessary spin locks in I/O barrier code

 Documentation/00-INDEX                |   4 +-
 Documentation/admin-guide/md.rst      |   5 +
 Documentation/{ => md}/md-cluster.txt |   0
 Documentation/md/raid5-cache.txt      | 109 +++++++
 block/bio.c                           |  61 +++-
 drivers/md/faulty.c                   |   2 +-
 drivers/md/linear.c                   |  41 ++-
 drivers/md/linear.h                   |   1 +
 drivers/md/md.c                       |  22 +-
 drivers/md/md.h                       |   9 +-
 drivers/md/multipath.c                |   1 +
 drivers/md/raid0.c                    |   1 +
 drivers/md/raid1.c                    | 598 +++++++++++++++++++++-------------
 drivers/md/raid1.h                    |  58 ++--
 drivers/md/raid10.c                   |  11 +-
 drivers/md/raid5-cache.c              | 225 +++++++++++--
 drivers/md/raid5.c                    | 129 ++++++--
 drivers/md/raid5.h                    |   7 +
 include/linux/bio.h                   |  11 +-
 lib/radix-tree.c                      |   1 +
 20 files changed, 943 insertions(+), 353 deletions(-)
 rename Documentation/{ => md}/md-cluster.txt (100%)
 create mode 100644 Documentation/md/raid5-cache.txt