Messages in this thread | | | From | Wei Yang <> | Subject | [RESEND Patch v2 0/4] mm/mremap: cleanup move_page_tables() a little | Date | Fri, 26 Jun 2020 21:52:12 +0800 |
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move_page_tables() tries to move page table by PMD or PTE.
The root reason is if it tries to move PMD, both old and new range should be PMD aligned. But current code calculate old range and new range separately. This leads to some redundant check and calculation.
This cleanup tries to consolidate the range check in one place to reduce some extra range handling.
v2: * remove 3rd patch which doesn't work on ARM platform. Thanks report and test from Dmitry Osipenko
Wei Yang (4): mm/mremap: format the check in move_normal_pmd() same as move_huge_pmd() mm/mremap: it is sure to have enough space when extent meets requirement mm/mremap: calculate extent in one place mm/mremap: start addresses are properly aligned
include/linux/huge_mm.h | 2 +- mm/huge_memory.c | 8 +------- mm/mremap.c | 17 ++++++----------- 3 files changed, 8 insertions(+), 19 deletions(-)
-- 2.20.1 (Apple Git-117)
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