Re: [PATCH 1/4] mm: hugetlb: use flush_hugetlb_tlb_range() in move_hugetlb_page_tables()
From: Mike Kravetz <hidden>
Date: 2023-07-31 23:41:11
Also in:
linux-mm, lkml
On 07/31/23 15:48, Kefeng Wang wrote:
Archs may need to do special things when flushing hugepage tlb,
so use the more applicable flush_hugetlb_tlb_range() instead of
flush_tlb_range().
Fixes: 550a7d60bd5e ("mm, hugepages: add mremap() support for hugepage backed vma")
Signed-off-by: Kefeng Wang <redacted>Thanks! Reviewed-by: Mike Kravetz <redacted> Although, I missed this in 550a7d60bd5e :( Looks like only powerpc provides an arch specific flush_hugetlb_tlb_range today. -- Mike Kravetz
quoted hunk ↗ jump to hunk
--- mm/hugetlb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 64a3239b6407..ac876bfba340 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c@@ -5281,9 +5281,9 @@ int move_hugetlb_page_tables(struct vm_area_struct *vma, } if (shared_pmd) - flush_tlb_range(vma, range.start, range.end); + flush_hugetlb_tlb_range(vma, range.start, range.end); else - flush_tlb_range(vma, old_end - len, old_end); + flush_hugetlb_tlb_range(vma, old_end - len, old_end); mmu_notifier_invalidate_range_end(&range); i_mmap_unlock_write(mapping); hugetlb_vma_unlock_write(vma);-- 2.41.0
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