[GIT PULL] percpu changes for v5.3-rc1

[Dennis Zhou]

Hi Linus,

This pull request includes changes to let percpu_ref release the backing
percpu memory earlier after it has been switched to atomic in cases
where the percpu ref is not revived. This will help recycle percpu
memory earlier in cases where the refcounts are pinned for prolonged
periods of time.

Thanks,
Dennis

The following changes since commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd:

  Linux 5.1 (2019-05-05 17:42:58 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git for-5.3

for you to fetch changes up to 7d9ab9b6adffd9c474c1274acb5f6208f9a09cf3:

  percpu_ref: release percpu memory early without PERCPU_REF_ALLOW_REINIT (2019-05-09 10:51:06 -0700)

----------------------------------------------------------------
Roman Gushchin (4):
      percpu_ref: introduce PERCPU_REF_ALLOW_REINIT flag
      io_uring: initialize percpu refcounters using PERCU_REF_ALLOW_REINIT
      md: initialize percpu refcounters using PERCU_REF_ALLOW_REINIT
      percpu_ref: release percpu memory early without PERCPU_REF_ALLOW_REINIT

 drivers/md/md.c                 |  3 ++-
 fs/io_uring.c                   |  3 ++-
 include/linux/percpu-refcount.h | 10 +++++++++-
 lib/percpu-refcount.c           | 13 +++++++++++--
 4 files changed, 24 insertions(+), 5 deletions(-)