On Tue, Jul 11, 2023 at 10:20 PM Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> wrote: > Push the check down from __handle_mm_fault(). There's a mild upside to > this patch in that we'll allocate the page tables while under the VMA > lock rather than the mmap lock, reducing the hold time on the mmap lock, > since the retry will find the page tables already populated. This commit, by moving the check from __handle_mm_fault() to handle_pte_fault(), also makes the non-anonymous THP paths (including the DAX huge fault handling) reachable for VMA-locked faults, right? Is that intentional?
