>>> On 26.05.15 at 20:00, wrote:
> @@ -514,18 +534,19 @@ static int grant_map_exists(const struct domain *ld,
> nr_grant_entries(rgt));
> for ( ref = *ref_count; ref < max_iter; ref++ )
> {
> -act = &active_entry(rgt, ref);
> +struct active_grant_entry
Introduce a per-active entry spin lock to protect active entry state
The grant table lock must be locked before acquiring (locking) an
active entry.
This is a step in reducing contention on the grant table lock, but
will only do so once the grant table lock is turned into a read-write
lock.
Based
