On Tue, 6 Mar 2018 14:49:57 +0100
Christophe LEROY wrote:
> Le 06/03/2018 à 14:25, Nicholas Piggin a écrit :
> > @@ -201,6 +206,15 @@ typedef struct {
> > unsigned char low_slices_psize[SLICE_ARRAY_SIZE];
> > unsigned char high_slices_psize[0];
> > unsigned long slb_addr_limit;
> > +
Le 06/03/2018 à 14:25, Nicholas Piggin a écrit :
Calculating the slice mask can become a signifcant overhead for
get_unmapped_area. This patch adds a struct slice_mask for
each page size in the mm_context, and keeps these in synch with
the slices psize arrays and slb_addr_limit.
On Book3S/64 t
Calculating the slice mask can become a signifcant overhead for
get_unmapped_area. This patch adds a struct slice_mask for
each page size in the mm_context, and keeps these in synch with
the slices psize arrays and slb_addr_limit.
On Book3S/64 this adds 288 bytes to the mm_context_t for the
slice
