Messages in this thread | | | From | Miaohe Lin <> | Subject | [PATCH v3 0/4] A few cleanup and fixup patches for migration | Date | Wed, 25 May 2022 16:18:18 +0800 |
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Hi everyone, This series contains a few patches to remove unneeded lock page and PageMovable check, reduce the rcu lock duration. Also we fix potential pte_unmap on an not mapped pte. More details can be found in the respective changelogs. Thanks!
--- v3: [PATCH 1/4] mm/migration: reduce the rcu lock duration add the analysis that the original race condition isn't possible now alsoreduce the rcu lock duration in kernel_migrate_pages [PATCH 2/4] mm/migration: remove unneeded lock page and PageMovable check let free_pages_prepare() clear PG_isolated for us [PATCH 3/4] mm/migration: return errno when isolate_huge_page failed rename isolate_huge_page to isolate_hugetlb [PATCH 4/4] mm/migration: fix potential pte_unmap on an not mapped pte collect Reviewed-by tag v2: collect Reviewed-by tag make isolate_huge_page consistent with isolate_lru_page add hugetlbfs variant of hugetlb_migration_entry_wait v1: rebase [1] on mainline.
[1] https://lore.kernel.org/lkml/20220304093409.25829-2-linmiaohe@huawei.com/T/ --- Miaohe Lin (4): mm: reduce the rcu lock duration mm/migration: remove unneeded lock page and PageMovable check mm/migration: return errno when isolate_huge_page failed mm/migration: fix potential pte_unmap on an not mapped pte
include/linux/hugetlb.h | 6 +++--- include/linux/swapops.h | 12 ++++++++---- mm/gup.c | 2 +- mm/hugetlb.c | 15 +++++++-------- mm/memory-failure.c | 2 +- mm/mempolicy.c | 5 ++--- mm/migrate.c | 40 +++++++++++++++++++++++++--------------- 7 files changed, 47 insertions(+), 35 deletions(-)
-- 2.23.0
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