On Mon, Mar 23, 2020 at 10:14:50PM -0300, Jason Gunthorpe wrote:
> +enum {
> + HMM_NEED_FAULT = 1 << 0,
> + HMM_NEED_WRITE_FAULT = HMM_NEED_FAULT | (1 << 1),
> + HMM_NEED_ALL_BITS = HMM_NEED_FAULT | HMM_NEED_WRITE_FAULT,
I have to say I find the compound version of HMM_NEED_WRITE_FAULT
way harder to understand than the logic in the previous version,
and would refer keeping separate bits here.
Mostly beccause of statements like this:
> + if ((required_fault & HMM_NEED_WRITE_FAULT) == HMM_NEED_WRITE_FAULT) {
which seems rather weird.
