Commit 08994b24 authored by Wei Yang's avatar Wei Yang Committed by Linus Torvalds

mm/sparse.c: pass the __highest_present_section_nr + 1 to alloc_func()

In commit c4e1be9e ("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.

Link: default avatarWei Yang <>
Reviewed-by: default avatarAndrew Morton <>
Cc: David Rientjes <>
Cc: Dave Hansen <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent d538c164
......@@ -522,7 +522,7 @@ 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);
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