mm/huge_memory: access vm_page_prot with READ_ONCE in remove_migration_pmd

vma->vm_page_prot is read lockless from the rmap_walk, it may be updated
concurrently.  Using READ_ONCE to prevent the risk of reading intermediate
values.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Miaohe Lin <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Muchun Song <[email protected]>
Cc: Yang Shi <[email protected]>
Cc: Zach O'Keefe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions