Zoltan Kiss <zoltan.kiss@xxxxxxxxxx> wrote:The grant mapping API does m2p_override unnecessarily: only gntdev
for blkback and future netback patches it just cause a lock contention,
those pages never go to userspace. Therefore this series does the
- the original functions were renamed to __gnttab_[un]map_refs, with a
- based on m2p_override either they follow the original behaviour, or
the private flag and call set_phys_to_machine
- gnttab_[un]map_refs are now a wrapper to call __gnttab_[un]map_refs
- a new function gnttab_[un]map_refs_userspace provides the old
You don't say anything about the 'return ret' changed to 'return 0'.
Any particular reason for that?