+ mm-memory_hotplug-cleanup-after-removal-of-pfn_valid_within.patch added to -mm tree

+ mm-memory_hotplug-cleanup-after-removal-of-pfn_valid_within.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm: memory_hotplug: cleanup after removal of pfn_valid_within()
has been added to the -mm tree.  Its filename is
     mm-memory_hotplug-cleanup-after-removal-of-pfn_valid_within.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-memory_hotplug-cleanup-after-removal-of-pfn_valid_within.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-memory_hotplug-cleanup-after-removal-of-pfn_valid_within.patch

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------------------------------------------------------
From: Mike Rapoport <rppt@linux.ibm.com>
Subject: mm: memory_hotplug: cleanup after removal of pfn_valid_within()

When test_pages_in_a_zone() used pfn_valid_within() is has some logic
surrounding pfn_valid_within() checks.

Since pfn_valid_within() is gone, this logic can be removed.

Link: https://lkml.kernel.org/r/20210713080035.7464-3-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memory_hotplug.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

--- a/mm/memory_hotplug.c~mm-memory_hotplug-cleanup-after-removal-of-pfn_valid_within
+++ a/mm/memory_hotplug.c
@@ -1298,7 +1298,7 @@ struct zone *test_pages_in_a_zone(unsign
 	unsigned long pfn, sec_end_pfn;
 	struct zone *zone = NULL;
 	struct page *page;
-	int i;
+
 	for (pfn = start_pfn, sec_end_pfn = SECTION_ALIGN_UP(start_pfn + 1);
 	     pfn < end_pfn;
 	     pfn = sec_end_pfn, sec_end_pfn += PAGES_PER_SECTION) {
@@ -1307,13 +1307,10 @@ struct zone *test_pages_in_a_zone(unsign
 			continue;
 		for (; pfn < sec_end_pfn && pfn < end_pfn;
 		     pfn += MAX_ORDER_NR_PAGES) {
-			i = 0;
-			if (i == MAX_ORDER_NR_PAGES || pfn + i >= end_pfn)
-				continue;
 			/* Check if we got outside of the zone */
-			if (zone && !zone_spans_pfn(zone, pfn + i))
+			if (zone && !zone_spans_pfn(zone, pfn))
 				return NULL;
-			page = pfn_to_page(pfn + i);
+			page = pfn_to_page(pfn);
 			if (zone && page_zone(page) != zone)
 				return NULL;
 			zone = page_zone(page);
_

Patches currently in -mm which might be from rppt@linux.ibm.com are

mm-remove-pfn_valid_within-and-config_holes_in_zone.patch
mm-memory_hotplug-cleanup-after-removal-of-pfn_valid_within.patch