On Tue, 30 Jun 2020, Su Hui wrote: > remove the redundancy code, the zone_start_pfn > is assigned from zone->zone_start_pfn > Signed-off-by: Su Hui <sh_...@163.com>
I don't think this is redundant, it's used by memory hotplug when onlining new memory. > --- > mm/page_alloc.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index 3c4eb750a199..3372a8c9fbc4 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -6215,8 +6215,6 @@ void __meminit init_currently_empty_zone(struct zone > *zone, > if (zone_idx > pgdat->nr_zones) > pgdat->nr_zones = zone_idx; > > - zone->zone_start_pfn = zone_start_pfn; > - > mminit_dprintk(MMINIT_TRACE, "memmap_init", > "Initialising map node %d zone %lu pfns %lu -> %lu\n", > pgdat->node_id,
