On Fri, Feb 23, 2018 at 12:38:43PM +0100, Peter Zijlstra wrote:
> On Thu, Feb 22, 2018 at 03:09:02PM +0800, Boqun Feng wrote:
> > diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
> > index a1f91f8680bd..3fce8dbf5091 100644
> > --- a/include/linux/lockdep.h
> > +++ b/include/linux/lock
On Thu, Feb 22, 2018 at 03:09:02PM +0800, Boqun Feng wrote:
> diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
> index a1f91f8680bd..3fce8dbf5091 100644
> --- a/include/linux/lockdep.h
> +++ b/include/linux/lockdep.h
> @@ -186,11 +186,11 @@ struct lock_list {
> struct list_head
We actually only need 4 bits for lock_list::dep and 1 bit for
lock_list::is_rr, besides lock_list::distance should always be no
greater than MAX_LOCKDEP_DEPTH(which is 48 right now), so a u16 will
fit, this patch then reduces the sizes of those fields to save space for
lock_list structure, as a res
3 matches
Mail list logo