[PATCH v3 3/4] mm/sparse: Add a new parameter 'data_unit_size' for alloc_usemap_and_memmap
From: Baoquan He <hidden>
Date: 2018-02-28 03:27:25
Also in:
lkml
Subsystem:
memory management, memory management - core, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
It's used to pass the size of map data unit into alloc_usemap_and_memmap, and is preparation for next patch. Signed-off-by: Baoquan He <redacted> --- mm/sparse.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/mm/sparse.c b/mm/sparse.c
index 5769a0a79dc1..e1aa2f44530d 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c@@ -528,10 +528,12 @@ void __weak __meminit vmemmap_populate_print_last(void) /** * alloc_usemap_and_memmap - memory alloction for pageblock flags and vmemmap * @map: usemap_map for pageblock flags or mmap_map for vmemmap + * @unit_size: size of map unit */ static void __init alloc_usemap_and_memmap(void (*alloc_func) (void *, unsigned long, unsigned long, - unsigned long, int), void *data) + unsigned long, int), void *data, + int data_unit_size) { unsigned long pnum; unsigned long map_count;
@@ -608,7 +610,8 @@ void __init sparse_init(void) if (!usemap_map) panic("can not allocate usemap_map\n"); alloc_usemap_and_memmap(sparse_early_usemaps_alloc_node, - (void *)usemap_map); + (void *)usemap_map, + sizeof(usemap_map[0])); #ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER size2 = sizeof(struct page *) * NR_MEM_SECTIONS;
@@ -616,7 +619,8 @@ void __init sparse_init(void) if (!map_map) panic("can not allocate map_map\n"); alloc_usemap_and_memmap(sparse_early_mem_maps_alloc_node, - (void *)map_map); + (void *)map_map, + sizeof(map_map[0])); #endif for_each_present_section_nr(0, pnum) {
--
2.13.6
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>