29.01.2020 03:26, Wei Yang пишет: > 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 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(-) > Hello Wei, I haven't noticed any problems using the v2. Thank you very much for addressing the problem! Tested-by: Dmitry Osipenko <digetx@xxxxxxxxx>
