On Thu, Oct 03, 2019 at 01:18:54PM -0700, Davidlohr Bueso wrote: > @@ -1320,15 +1320,14 @@ static bool iotlb_access_ok(struct vhost_virtqueue *vq, > { > const struct vhost_umem_node *node; > struct vhost_umem *umem = vq->iotlb; > - u64 s = 0, size, orig_addr = addr, last = addr + len - 1; > + u64 s = 0, size, orig_addr = addr, last = addr + len; maybe "end" or "end_addr" instead of "last". > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index e9ed2722b633..bb36cb9ed5ec 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -53,13 +53,13 @@ struct vhost_log { > }; > > #define START(node) ((node)->start) > -#define LAST(node) ((node)->last) > +#define END(node) ((node)->end) > > struct vhost_umem_node { > struct rb_node rb; > struct list_head link; > __u64 start; > - __u64 last; > + __u64 end; > __u64 size; > __u64 userspace_addr; > __u32 perm; Preferably also rename __subtree_last to __subtree_end Looks good to me otherwise. -- Michel "Walken" Lespinasse A program is never fully debugged until the last user dies.