On Tue, Feb 11, 2020 at 7:38 PM Eric Biggers <ebiggers@xxxxxxxxxx> wrote: > > Indirect function calls are expensive these days for various reasons, including > Spectre mitigations and CFI. Are you sure it's okay from a performance > perspective to make an indirect call for every byte of the pathname? > > > +typedef int (*utf8_itr_actor_t)(struct utf8_itr_context *, int byte, int pos); > > The byte argument probably should be 'u8', to avoid confusion about whether it's > a byte or a Unicode codepoint. > > - Eric Gabriel, what do you think here? I could change it to either exposing the things necessary to do the hashing in libfs, or instead of the general purpose iterator, just have a hash function inside of unicode that will compute the hash given a seed value. -Daniel
