> Rather than directly checking VMA flags, use the newly introduced > vma_is_mm_managed() and vma_is_mm_backed() helpers in userfaultfd > when assessing VMA suitability for userfaultfd and UFFDIO_MOVE. > > Update vma_move_compatible() so it's expressed in terms of VMA > characteristics rather than arbitrary flags. > > Additionally, update the use of the deprecated VMA flag API when checking > VMA_SHADOW_STACK_BIT. > > A VMA_IO_BIT check is no longer required but that is fine as a hard > invariant has been established that mm-managed mappings may not set > VMA_IO_BIT so the check is now redundant. > > Acked-by: Zi Yan <[email protected]> > Signed-off-by: Lorenzo Stoakes (ARM) <[email protected]>
Sashiko has reviewed this patch and found no issues. It looks great! -- Sashiko AI review ยท https://sashiko.dev/#/patchset/20261003-b4-mmap-prepare-vma-flag-sanify-v4-0-a1f052500...@kernel.org?part=31
