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authorKefeng Wang <wangkefeng.wang@huawei.com>2022-09-07 14:08:42 +0800
committerAndrew Morton <akpm@linux-foundation.org>2022-10-03 14:03:03 -0700
commit4f9bc69ac5ce34071a9a51343bc81ca76cb2e3f1 (patch)
tree09f1faa2d36644a3800fed59651a11ea1089e65e /include/linux/pageblock-flags.h
parent0bba9af03d55d2cc1aa7616a8b9e522ceb49d180 (diff)
mm: reuse pageblock_start/end_pfn() macro
Move pageblock_start_pfn/pageblock_end_pfn() into pageblock-flags.h, then they could be used somewhere else, not only in compaction, also use ALIGN_DOWN() instead of round_down() to be pair with ALIGN(), which should be same for pageblock usage. Link: https://lkml.kernel.org/r/20220907060844.126891-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/pageblock-flags.h')
-rw-r--r--include/linux/pageblock-flags.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pageblock-flags.h b/include/linux/pageblock-flags.h
index 83c7248053a1..a09b7fe6bbf8 100644
--- a/include/linux/pageblock-flags.h
+++ b/include/linux/pageblock-flags.h
@@ -53,6 +53,8 @@ extern unsigned int pageblock_order;
#endif /* CONFIG_HUGETLB_PAGE */
#define pageblock_nr_pages (1UL << pageblock_order)
+#define pageblock_start_pfn(pfn) ALIGN_DOWN((pfn), pageblock_nr_pages)
+#define pageblock_end_pfn(pfn) ALIGN((pfn) + 1, pageblock_nr_pages)
/* Forward declaration */
struct page;