In 'commit c4e1be9ec113 ("mm, sparsemem: break out of loops early")',
__highest_present_section_nr is introduced to reduce the loop counts for
present section. This is also helpful for usemap and memmap allocation.
This patch uses __highest_present_section_nr + 1 to optimize the loop.
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
---
mm/sparse.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/sparse.c b/mm/sparse.c
index 7af5e7a92528..505050346249 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -561,7 +561,7 @@ static void __init alloc_usemap_and_memmap(void (*alloc_func)
map_count = 1;
}
/* ok, last chunk */
- alloc_func(data, pnum_begin, NR_MEM_SECTIONS,
+ alloc_func(data, pnum_begin, __highest_present_section_nr+1,
map_count, nodeid_begin);
}
--
2.15.1
