x86, mm: use add_highpages_with_active_regions() for high pages init v2

use early_node_map to init high pages, so we can remove page_is_ram() and
page_is_reserved_early() in the big loop with add_one_highpage

also remove page_is_reserved_early(), it is not needed anymore.

v2: fix the build of other platforms

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 11 deletions

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 5051ce744b4e..ed46b7a6bc13 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -612,17 +612,6 @@ void __init free_early(u64 start, u64 end)
 	early_res[j - 1].end = 0;
 }
 
-int __init page_is_reserved_early(unsigned long pagenr)
-{
-	u64 start = (u64)pagenr << PAGE_SHIFT;
-	int i;
-	struct early_res *r;
-
-	i = find_overlapped_early(start, start + PAGE_SIZE);
-	r = &early_res[i];
-	return (i < MAX_EARLY_RES && r->end);
-}
-
 void __init early_res_to_bootmem(u64 start, u64 end)
 {
 	int i;