On 4/29/19 11:52 AM, tip-bot for Sebastian Andrzej Siewior wrote: > Instead of utilizing copy_xstate_to_user(), fault-in the user memory > and retry the fast path. Ideally, the fast path succeeds on the second > attempt but may be retried again if the memory is swapped out due > to memory pressure. If the user memory can not be faulted-in then > get_user_pages() returns an error so we don't loop forever. > > Fault in memory via get_user_pages() so copy_fpregs_to_sigframe() > succeeds without a fault. Thanks for reworking this. It looks great. Acked-by: Dave Hansen <dave.hansen@xxxxxxxxx>
