Peter Xu <peterx@xxxxxxxxxx> writes: > I observed that for each of the shared file-backed page faults, we're very > likely to retry one more time for the 1st write fault upon no page. It's > because we'll need to release the mmap lock for dirty rate limit purpose > with balance_dirty_pages_ratelimited() (in fault_dirty_shared_page()). > ... > arch/powerpc/mm/copro_fault.c | 5 +++++ > arch/powerpc/mm/fault.c | 5 +++++ Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc) cheers
