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Date:   Mon, 12 Dec 2022 09:13:42 -0800
From:   Dennis Zhou <>
To:     Linus Torvalds <>
Cc:     Tejun Heo <>, Christoph Lameter <>,
        Vlastimil Babka <>, Baoquan He <>,,
Subject: [GIT PULL] percpu changes for v6.2-rc1

Hi Linus,

Baoquan was nice enough to run some clean ups for percpu. There will be
a minor merge conflict with Vlastimil's slab PR [1]. This is due to
adjusting the PERCPU_DYNAMIC_EARLY_SIZE up for proper early percpu
reservation size on arm64 with 64k pages.


Some new eventual work is potential BPF accounting of percpu.


The following changes since commit f0c4d9fc9cc9462659728d168387191387e903cc:

  Linux 6.1-rc4 (2022-11-06 15:07:11 -0800)

are available in the Git repository at:

  git:// for-6.2

for you to fetch changes up to d667c94962c1c81ef587ac91dc5c01a1cfe339c7:

  mm/percpu: remove unused PERCPU_DYNAMIC_EARLY_SLOTS (2022-11-07 22:59:28 -0800)

Baoquan He (7):
      mm/percpu: remove unused pcpu_map_extend_chunks
      mm/percpu: use list_first_entry_or_null in pcpu_reclaim_populated()
      mm/percpu: Update the code comment when creating new chunk
      mm/percpu: add comment to state the empty populated pages accounting
      mm/percpu: replace the goto with break
      mm/percpu.c: remove the lcm code since block size is fixed at page size
      mm/percpu: remove unused PERCPU_DYNAMIC_EARLY_SLOTS

 include/linux/percpu.h |  7 +++----
 mm/percpu.c            | 44 ++++++++++++++++++--------------------------
 2 files changed, 21 insertions(+), 30 deletions(-)

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