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    Subject[PATCH v4 0/4] mm: A few cleanup patches around zap, shmem and uffd
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    [Based on v5.14-rc1]

    Hi, Andrew,

    I dropped patch 5 and will do it later when it justifies itself better. Each
    patch of this series now contains at least 1 R-b, would you consider merge it?

    Thanks,

    v4:
    - Patch "mm: Drop first_index/last_index in zap_details"
    - Put first_index and last_index into two lines [Liam]
    - Pick up r-bs
    - Drop patch 5 for future

    v3:
    - Patch "mm: Add zap_skip_check_mapping() helper"
    - In zap_skip_check_mapping() check zap_mapping first [Alistair]
    - Patch "mm: Add ZAP_FLAG_SKIP_SWAP and zap_flags":
    - Fix English errors in commit message [David]
    - Drop paragraph mentioning commit 22061a1ffabd in commit msg
    - Set ZAP_FLAG_SKIP_SWAP for unmap_mapping_page() too
    - Pick up r-bs

    v2:
    - Patch "mm: Clear vmf->pte after pte_unmap_same() returns"
    - Remove one comment [David]
    - Collect r-b for patch 2/3
    - Rewrite the last two patches to drop ZAP_FLAG_CHECK_MAPPING, dropping
    Alistair's r-b on patch 5 because it changed [David, Matthew]

    ===== v1 cover letter =====

    I picked up these patches from uffd-wp v5 series here:

    https://lore.kernel.org/lkml/20210715201422.211004-1-peterx@redhat.com/

    IMHO all of them are very nice cleanups to existing code already, they're all
    small and self-contained. They'll be needed by uffd-wp coming series. I would
    appreciate if they can be accepted earlier, so as to not carry them over always
    with the uffd-wp series.

    I removed some CC from the uffd-wp v5 series to reduce the noise, and added a
    few more into it.

    Reviews are greatly welcomed, thanks.

    Peter Xu (4):
    mm/shmem: Unconditionally set pte dirty in mfill_atomic_install_pte
    mm: Clear vmf->pte after pte_unmap_same() returns
    mm: Drop first_index/last_index in zap_details
    mm: Add zap_skip_check_mapping() helper

    include/linux/mm.h | 18 ++++++++++--
    mm/memory.c | 72 +++++++++++++++++++---------------------------
    mm/shmem.c | 1 -
    mm/userfaultfd.c | 3 +-
    4 files changed, 46 insertions(+), 48 deletions(-)

    --
    2.31.1

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