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-rw-r--r--mm/vmscan.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index e2b8cee1dbc3..7b05304e5854 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -305,7 +305,14 @@ unsigned long zone_reclaimable_pages(struct zone *zone)
if (get_nr_swap_pages() > 0)
nr += zone_page_state_snapshot(zone, NR_ZONE_INACTIVE_ANON) +
zone_page_state_snapshot(zone, NR_ZONE_ACTIVE_ANON);
-
+ /*
+ * If there are no reclaimable file-backed or anonymous pages,
+ * ensure zones with sufficient free pages are not skipped.
+ * This prevents zones like DMA32 from being ignored in reclaim
+ * scenarios where they can still help alleviate memory pressure.
+ */
+ if (nr == 0)
+ nr = zone_page_state_snapshot(zone, NR_FREE_PAGES);
return nr;
}