| Message ID | 20200623124201.8199-2-richard.weiyang@linux.alibaba.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/4] mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits | expand |
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 727751219003..efc2c355ac52 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -459,11 +459,10 @@ static inline int pfn_to_bitidx(struct page *page, unsigned long pfn) { #ifdef CONFIG_SPARSEMEM pfn &= (PAGES_PER_SECTION-1); - return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; #else pfn = pfn - round_down(page_zone(page)->zone_start_pfn, pageblock_nr_pages); - return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; #endif /* CONFIG_SPARSEMEM */ + return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; } /**
The return value calculation is the same both for SPARSEMEM or not. Just took it out. Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> --- mm/page_alloc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)