On Thu, 8 Jun 2023 12:27:22 -0700 (PDT)
Hugh Dickins wrote:
> In rare transient cases, not yet made possible, pte_offset_map() and
> pte_offset_map_lock() may not find a page table: handle appropriately.
>
> Add comment on mm's contract with s390 above __zap_zero_pages(),
> and fix old comment
In rare transient cases, not yet made possible, pte_offset_map() and
pte_offset_map_lock() may not find a page table: handle appropriately.
Add comment on mm's contract with s390 above __zap_zero_pages(),
and fix old comment there: must be called after THP was disabled.
Signed-off-by: Hugh
