The patch titled
Subject: mm/memory: fix IO cost for anonymous page
has been removed from the -mm tree. Its filename was
mm-memory-fix-io-cost-for-anonymous-page.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Subject: mm/memory: fix IO cost for anonymous page
With synchronous IO swap device, swap-in is directly handled in fault
code. Since IO cost notation isn't added there, with synchronous IO swap
device, LRU balancing could be wrongly biased. Fix it to count it in
fault code.
Link: http://lkml.kernel.org/r/1592288204-27734-4-git-send-email-iamjoonsoo.kim@xxxxxxx
Fixes: 314b57fb0460001 ("mm: balance LRU lists based on relative thrashing cache sizing")
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Joonsoo Kim <js1304@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Minchan Kim <minchan.kim@xxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/mm/memory.c~mm-memory-fix-io-cost-for-anonymous-page
+++ a/mm/memory.c
@@ -3146,6 +3146,14 @@ vm_fault_t do_swap_page(struct vm_fault
goto out_page;
}
+ /*
+ * XXX: Move to lru_cache_add() when it
+ * supports new vs putback
+ */
+ spin_lock_irq(&page_pgdat(page)->lru_lock);
+ lru_note_cost_page(page);
+ spin_unlock_irq(&page_pgdat(page)->lru_lock);
+
lru_cache_add(page);
swap_readpage(page, true);
}
_
Patches currently in -mm which might be from iamjoonsoo.kim@xxxxxxx are
mm-page_isolation-prefer-the-node-of-the-source-page.patch
mm-migrate-move-migration-helper-from-h-to-c.patch
mm-hugetlb-unify-migration-callbacks.patch
mm-hugetlb-make-hugetlb-migration-callback-cma-aware.patch
mm-migrate-make-a-standard-migration-target-allocation-function.patch
mm-gup-use-a-standard-migration-target-allocation-callback.patch
mm-mempolicy-use-a-standard-migration-target-allocation-callback.patch
mm-page_alloc-remove-a-wrapper-for-alloc_migration_target.patch
