Commit 108c3dc6 authored by ZhangPeng's avatar ZhangPeng Committed by Andrew Morton
Browse files

mm: kmsan: use helper macros PAGE_ALIGN and PAGE_ALIGN_DOWN 

Use helper macros PAGE_ALIGN and PAGE_ALIGN_DOWN to improve code
readability.  No functional modification involved.

Link: https://lkml.kernel.org/r/20230727011612.2721843-4-zhangpeng362@huawei.com


Signed-off-by: default avatarZhangPeng <zhangpeng362@huawei.com>
Reviewed-by: default avatarAlexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Marco Elver <elver@google.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 4852a805

mm/kmsan/shadow.c

+2 −2
Original line number Diff line number Diff line
@@ -281,8 +281,8 @@ void __init kmsan_init_alloc_meta_for_range(void *start, void *end) 
	struct page *page;

	u64 size;



	start = (void *)ALIGN_DOWN((u64)start, PAGE_SIZE);

	size = ALIGN((u64)end - (u64)start, PAGE_SIZE);

	start = (void *)PAGE_ALIGN_DOWN((u64)start);

	size = PAGE_ALIGN((u64)end - (u64)start);

	shadow = memblock_alloc(size, PAGE_SIZE);

	origin = memblock_alloc(size, PAGE_SIZE);

	for (u64 addr = 0; addr < size; addr += PAGE_SIZE) {