+ mm-page_allocc-use-helper-function-zone_spans_pfn.patch added to -mm tree

+ mm-page_allocc-use-helper-function-zone_spans_pfn.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm/page_alloc.c: use helper function zone_spans_pfn()
has been added to the -mm tree.  Its filename is
     mm-page_allocc-use-helper-function-zone_spans_pfn.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-page_allocc-use-helper-function-zone_spans_pfn.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-page_allocc-use-helper-function-zone_spans_pfn.patch

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------------------------------------------------------
From: Miaohe Lin <linmiaohe@huawei.com>
Subject: mm/page_alloc.c: use helper function zone_spans_pfn()

Use helper function zone_spans_pfn() to check whether pfn is within a zone
to simplify the code slightly.

Link: https://lkml.kernel.org/r/20210902121242.41607-5-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_alloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/page_alloc.c~mm-page_allocc-use-helper-function-zone_spans_pfn
+++ a/mm/page_alloc.c
@@ -1581,7 +1581,7 @@ static void __meminit init_reserved_page
 	for (zid = 0; zid < MAX_NR_ZONES; zid++) {
 		struct zone *zone = &pgdat->node_zones[zid];
 
-		if (pfn >= zone->zone_start_pfn && pfn < zone_end_pfn(zone))
+		if (zone_spans_pfn(zone, pfn))
 			break;
 	}
 	__init_single_page(pfn_to_page(pfn), pfn, zid, nid);
_

Patches currently in -mm which might be from linmiaohe@huawei.com are

mm-page_allocc-remove-meaningless-vm_bug_on-in-pindex_to_order.patch
mm-page_allocc-simplify-the-code-by-using-macro-k.patch
mm-page_allocc-fix-obsolete-comment-in-free_pcppages_bulk.patch
mm-page_allocc-use-helper-function-zone_spans_pfn.patch
mm-page_allocc-avoid-allocating-highmem-pages-via-alloc_pages_exact.patch
mm-page_isolation-fix-potential-missing-call-to-unset_migratetype_isolate.patch
mm-page_isolation-guard-against-possible-putback-unisolated-page.patch
mm-memory_hotplug-make-hwpoisoned-dirty-swapcache-pages-unmovable.patch
mm-zsmallocc-close-race-window-between-zs_pool_dec_isolated-and-zs_unregister_migration.patch
mm-zsmallocc-combine-two-atomic-ops-in-zs_pool_dec_isolated.patch