The patch titled
Subject: mm/vmscan: reclaim only affects managed_zones
has been added to the -mm tree. Its filename is
mm-vmscan-reclaim-only-affects-managed_zones.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-vmscan-reclaim-only-affects-managed_zones.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-vmscan-reclaim-only-affects-managed_zones.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: mm/vmscan: reclaim only affects managed_zones
As mentioned in commit 6aa303defb74 ("mm, vmscan: only allocate and
reclaim from zones with pages managed by the buddy allocator") , reclaim
only affects managed_zones.
Let's adjust the code and comment accordingly.
Link: https://lkml.kernel.org/r/20220327024101.10378-1-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Reviewed-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/vmscan.c~mm-vmscan-reclaim-only-affects-managed_zones
+++ a/mm/vmscan.c
@@ -1031,7 +1031,7 @@ static bool skip_throttle_noprogress(pg_
for (i = 0; i < MAX_NR_ZONES; i++) {
struct zone *zone = pgdat->node_zones + i;
- if (!populated_zone(zone))
+ if (!managed_zone(zone))
continue;
reclaimable += zone_reclaimable_pages(zone);
@@ -3912,7 +3912,7 @@ static bool pgdat_balanced(pg_data_t *pg
}
/*
- * If a node has no populated zone within highest_zoneidx, it does not
+ * If a node has no managed zone within highest_zoneidx, it does not
* need balancing by definition. This can happen if a zone-restricted
* allocation tries to wake a remote kswapd.
*/
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
mm-page_alloc-add-same-penalty-is-enough-to-get-round-robin-order.patch
mm-page_alloc-add-penalty-to-local_node.patch
mm-vmscan-reclaim-only-affects-managed_zones.patch
mm-vmscan-make-sure-wakeup_kswapd-with-managed-zone.patch
