+ mm-remove-cold-parameter-from-free_hot_cold_page-fix.patch added to -mm tree

+ mm-remove-cold-parameter-from-free_hot_cold_page-fix.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm-remove-cold-parameter-from-free_hot_cold_page-fix
has been added to the -mm tree.  Its filename is
     mm-remove-cold-parameter-from-free_hot_cold_page-fix.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-remove-cold-parameter-from-free_hot_cold_page-fix.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-remove-cold-parameter-from-free_hot_cold_page-fix.patch

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------------------------------------------------------
From: Mel Gorman <mgorman@techsingularity.net>
Subject: mm-remove-cold-parameter-from-free_hot_cold_page-fix

As pointed out by Vlastimil Babka, the pages being freed should be added
to the head, no the tail, of the pcpu list.

Link: http://lkml.kernel.org/r/20171019154321.qtpzaeftoyyw4iey@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

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

diff -puN mm/page_alloc.c~mm-remove-cold-parameter-from-free_hot_cold_page-fix mm/page_alloc.c
--- a/mm/page_alloc.c~mm-remove-cold-parameter-from-free_hot_cold_page-fix
+++ a/mm/page_alloc.c
@@ -2624,7 +2624,7 @@ static void free_unref_page_commit(struc
 	}
 
 	pcp = &this_cpu_ptr(zone->pageset)->pcp;
-	list_add_tail(&page->lru, &pcp->lists[migratetype]);
+	list_add(&page->lru, &pcp->lists[migratetype]);
 	pcp->count++;
 	if (pcp->count >= pcp->high) {
 		unsigned long batch = READ_ONCE(pcp->batch);
_

Patches currently in -mm which might be from mgorman@techsingularity.net are

mm-page_alloc-enable-disable-irqs-once-when-freeing-a-list-of-pages.patch
mm-page_alloc-enable-disable-irqs-once-when-freeing-a-list-of-pages-fix.patch
mm-truncate-do-not-check-mapping-for-every-page-being-truncated.patch
mm-truncate-remove-all-exceptional-entries-from-pagevec-under-one-lock.patch
mm-only-drain-per-cpu-pagevecs-once-per-pagevec-usage.patch
mm-pagevec-remove-cold-parameter-for-pagevecs.patch
mm-remove-cold-parameter-for-release_pages.patch
mm-remove-cold-parameter-from-free_hot_cold_page.patch
mm-remove-cold-parameter-from-free_hot_cold_page-fix.patch
mm-remove-__gfp_cold.patch
mm-pagevec-rename-pagevec-drained-field.patch