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mm/mm_init: use helper macro BITS_PER_LONG and BITS_PER_BYTE

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It's more readable to use helper macro BITS_PER_LONG and BITS_PER_BYTE. 
No functional change intended.

Link: https://lkml.kernel.org/r/20230807023528.325191-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2023-08-07 10:35:28 +08:00 committed by Andrew Morton
parent 6379693e3c
commit daee07bfba
1 changed files with 3 additions and 3 deletions
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6
mm/mm_init.c
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@ -79,7 +79,7 @@ void __init mminit_verify_pageflags_layout(void)
int shift, width; int shift, width;
unsigned long or_mask, add_mask; unsigned long or_mask, add_mask;
shift = 8 * sizeof(unsigned long); shift = BITS_PER_LONG;
width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH
- LAST_CPUPID_SHIFT - KASAN_TAG_WIDTH - LRU_GEN_WIDTH - LRU_REFS_WIDTH; - LAST_CPUPID_SHIFT - KASAN_TAG_WIDTH - LRU_GEN_WIDTH - LRU_REFS_WIDTH;
mminit_dprintk(MMINIT_TRACE, "pageflags_layout_widths", mminit_dprintk(MMINIT_TRACE, "pageflags_layout_widths",
@ -1426,9 +1426,9 @@ static unsigned long __init usemap_size(unsigned long zone_start_pfn, unsigned l
usemapsize = roundup(zonesize, pageblock_nr_pages); usemapsize = roundup(zonesize, pageblock_nr_pages);
usemapsize = usemapsize >> pageblock_order; usemapsize = usemapsize >> pageblock_order;
usemapsize *= NR_PAGEBLOCK_BITS; usemapsize *= NR_PAGEBLOCK_BITS;
usemapsize = roundup(usemapsize, 8 * sizeof(unsigned long)); usemapsize = roundup(usemapsize, BITS_PER_LONG);
return usemapsize / 8; return usemapsize / BITS_PER_BYTE;
} }
static void __ref setup_usemap(struct zone *zone) static void __ref setup_usemap(struct zone *zone)