+ mm-page_owner-clean-up-init_pages_in_zone.patch added to -mm tree

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The patch titled
     Subject: mm/page_owner.c: clean up init_pages_in_zone()
has been added to the -mm tree.  Its filename is
     mm-page_owner-clean-up-init_pages_in_zone.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-page_owner-clean-up-init_pages_in_zone.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_owner-clean-up-init_pages_in_zone.patch

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------------------------------------------------------
From: Oscar Salvador <osalvador@xxxxxxxxxxxxxxxxxx>
Subject: mm/page_owner.c: clean up init_pages_in_zone()

Remove two redundant assignments in init_pages_in_zone().

Link: http://lkml.kernel.org/r/20180110084355.GA22822@xxxxxxxxxxxxxxxxxx
Signed-off-by: Oscar Salvador <osalvador@xxxxxxxxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/page_owner.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff -puN mm/page_owner.c~mm-page_owner-clean-up-init_pages_in_zone mm/page_owner.c
--- a/mm/page_owner.c~mm-page_owner-clean-up-init_pages_in_zone
+++ a/mm/page_owner.c
@@ -528,14 +528,11 @@ read_page_owner(struct file *file, char
 
 static void init_pages_in_zone(pg_data_t *pgdat, struct zone *zone)
 {
-	struct page *page;
-	struct page_ext *page_ext;
 	unsigned long pfn = zone->zone_start_pfn, block_end_pfn;
 	unsigned long end_pfn = pfn + zone->spanned_pages;
 	unsigned long count = 0;
 
 	/* Scan block by block. First and last block may be incomplete */
-	pfn = zone->zone_start_pfn;
 
 	/*
 	 * Walk the zone in pageblock_nr_pages steps. If a page block spans
@@ -551,9 +548,9 @@ static void init_pages_in_zone(pg_data_t
 		block_end_pfn = ALIGN(pfn + 1, pageblock_nr_pages);
 		block_end_pfn = min(block_end_pfn, end_pfn);
 
-		page = pfn_to_page(pfn);
-
 		for (; pfn < block_end_pfn; pfn++) {
+			struct page *page;
+			struct page_ext *page_ext;
 			if (!pfn_valid_within(pfn))
 				continue;
 
_

Patches currently in -mm which might be from osalvador@xxxxxxxxxxxxxxxxxx are

mm-page_owner-remove-drain_all_pages-from-init_early_allocated_pages.patch
mm-slab-remove-redundant-assignments-for-slab_state.patch
mm-memory_hotplug-remove-unnecesary-check-from-register_page_bootmem_info_section.patch
mm-memory_hotplug-remove-second-__nr_to_section-in-register_page_bootmem_info_section.patch
mm-page_owner-clean-up-init_pages_in_zone.patch

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