[GIT PULL] md-next 20220703

[Song Liu <songliubraving@fb.com>]

Hi Jens, 

Please consider pulling the following changes on top of your for-5.20/drivers
branch. The major changes are:

1. Improve raid5 lock contention, by Logan Gunthorpe.
2. Misc fixes to raid5, by Logan Gunthorpe.
3. Fix race condition with md_reap_sync_thread(), by Guoqing Jiang.

Thanks,
Song

The following changes since commit 197f80d97e9ccc8a496f4935ba939f3ed7432d53:

  drbd: bm_page_async_io: fix spurious bitmap "IO error" on large volumes (2022-06-27 06:29:22 -0600)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/song/md.git md-next

for you to fetch changes up to ff4ec5f79108cf82fe7168547c76fe754c4ade0a:

  md: Fix spelling mistake in comments (2022-07-03 07:59:16 -0700)

----------------------------------------------------------------
Chris Webb (1):
      md: Explicitly create command-line configured devices

Guoqing Jiang (1):
      md: unlock mddev before reap sync_thread in action_store

Logan Gunthorpe (25):
      md/raid5-log: Drop extern decorators for function prototypes
      md/raid5-ppl: Drop unused argument from ppl_handle_flush_request()
      md/raid5: suspend the array for calls to log_exit()
      md/raid5-cache: Take mddev_lock in r5c_journal_mode_show()
      md/raid5-cache: Drop RCU usage of conf->log
      md/raid5-cache: Clear conf->log after finishing work
      md/raid5-cache: Annotate pslot with __rcu notation
      md: Use enum for overloaded magic numbers used by mddev->curr_resync
      md: Ensure resync is reported after it starts
      md: Notify sysfs sync_completed in md_reap_sync_thread()
      md/raid5: Make logic blocking check consistent with logic that blocks
      md/raid5: Factor out ahead_of_reshape() function
      md/raid5: Refactor raid5_make_request loop
      md/raid5: Move stripe_add_to_batch_list() call out of add_stripe_bio()
      md/raid5: Move common stripe get code into new find_get_stripe() helper
      md/raid5: Factor out helper from raid5_make_request() loop
      md/raid5: Drop the do_prepare flag in raid5_make_request()
      md/raid5: Move read_seqcount_begin() into make_stripe_request()
      md/raid5: Refactor for loop in raid5_make_request() into while loop
      md/raid5: Keep a reference to last stripe_head for batch
      md/raid5: Refactor add_stripe_bio()
      md/raid5: Check all disks in a stripe_head for reshape progress
      md/raid5: Pivot raid5_make_request()
      md/raid5: Improve debug prints
      md/raid5: Increase restriction on max segments per request

Song Liu (1):
      MAINTAINERS: add patchwork link to linux-raid project

Zhang Jiaming (1):
      md: Fix spelling mistake in comments

 MAINTAINERS                |   1 +
 drivers/md/dm-raid.c       |   1 +
 drivers/md/md-autodetect.c |   1 +
 drivers/md/md-cluster.c    |   4 +-
 drivers/md/md.c            |  76 ++++++++++++++++---------
 drivers/md/md.h            |  16 ++++++
 drivers/md/raid5-cache.c   |  40 +++++++------
 drivers/md/raid5-log.h     |  77 ++++++++++++-------------
 drivers/md/raid5-ppl.c     |   2 +-
 drivers/md/raid5.c         | 646 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------------------------------------------------------------
 10 files changed, 549 insertions(+), 315 deletions(-)