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@xxxxxxx (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
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