From: zhong jiang <zhongjiang@xxxxxxxxxx>
At present, we skip the reservation storage by the driver for
the zone_dvice. but the free pages set aside for the memmap is
ignored. And since the free pages is only used as the memmap,
so we can also skip the corresponding pages.
Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d604d25..51d8d03 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5047,7 +5047,7 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
* memory
*/
if (altmap && start_pfn == altmap->base_pfn)
- start_pfn += altmap->reserve;
+ start_pfn += vmem_altmap_offset(altmap);
for (pfn = start_pfn; pfn < end_pfn; pfn++) {
/*
--
1.8.3.1
--
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