| From: Wei Yang <richard.weiyang@gmail.com> |
| 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@gmail.com |
| Signed-off-by: Wei Yang <richard.weiyang@gmail.com> |
| Reviewed-by: Miaohe Lin <linmiaohe@huawei.com> |
| Reviewed-by: David Hildenbrand <david@redhat.com> |
| Reviewed-by: Oscar Salvador <osalvador@suse.de> |
| Cc: "Huang, Ying" <ying.huang@intel.com> |
| Cc: Mel Gorman <mgorman@techsingularity.net> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| 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. |
| */ |
| _ |
