Messages in this thread Patch in this message | | | From | Chih-En Lin <> | Subject | [PATCH v4 11/14] mm/migrate_device: Support COW PTE | Date | Tue, 7 Feb 2023 11:51:36 +0800 |
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Break COW PTE before collecting the pages in COW-ed PTE.
Signed-off-by: Chih-En Lin <shiyn.lin@gmail.com> --- mm/migrate_device.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/migrate_device.c b/mm/migrate_device.c index 721b2365dbca..2930e591e8fc 100644 --- a/mm/migrate_device.c +++ b/mm/migrate_device.c @@ -106,6 +106,8 @@ static int migrate_vma_collect_pmd(pmd_t *pmdp, } } + if (break_cow_pte_range(vma, start, end)) + return migrate_vma_collect_skip(start, end, walk); if (unlikely(pmd_bad(*pmdp))) return migrate_vma_collect_skip(start, end, walk); -- 2.34.1
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