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| author | Miaohe Lin <linmiaohe@huawei.com> | 2023-08-07 10:35:28 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-21 13:37:47 -0700 |
| commit | daee07bfba3340b07edcf9ae92044398e8a964db (patch) | |
| tree | cba163608914ff34823dde6f5a91d1010cfbc80d /mm/mm_init.c | |
| parent | 6379693e3c2683a7c86f395e878534731ac7ed06 (diff) | |
| download | lwn-daee07bfba3340b07edcf9ae92044398e8a964db.tar.gz lwn-daee07bfba3340b07edcf9ae92044398e8a964db.zip | |
mm/mm_init: use helper macro BITS_PER_LONG and BITS_PER_BYTE
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>
Diffstat (limited to 'mm/mm_init.c')
| -rw-r--r-- | mm/mm_init.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c index 2a19f3151661..50f2f34745af 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -79,7 +79,7 @@ void __init mminit_verify_pageflags_layout(void) int shift, width; unsigned long or_mask, add_mask; - shift = 8 * sizeof(unsigned long); + shift = BITS_PER_LONG; width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH - LAST_CPUPID_SHIFT - KASAN_TAG_WIDTH - LRU_GEN_WIDTH - LRU_REFS_WIDTH; 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 = usemapsize >> pageblock_order; 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) |