[PATCH v4 09/17] mm: workingset: use xas_set_lru() to pass shadow_nodes
From: Muchun Song <hidden>
Date: 2021-12-13 16:55:53
Also in:
linux-fsdevel, linux-mm, lkml
Subsystem:
memory management, memory management - mglru (multi-gen lru), memory management - reclaim, memory management - swap, the rest · Maintainers:
Andrew Morton, Johannes Weiner, Chris Li, Kairui Song, Linus Torvalds
The workingset will add the xa_node to shadow_nodes, so we should use xas_set_lru() to pass the list_lru which we want to insert xa_node into to set up the xa_node reclaim context correctly. Signed-off-by: Muchun Song <redacted> --- include/linux/swap.h | 5 ++++- mm/workingset.c | 2 +- 2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/include/linux/swap.h b/include/linux/swap.h
index d1ea44b31f19..1ae9d3473c02 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h@@ -334,9 +334,12 @@ void workingset_activation(struct folio *folio); /* Only track the nodes of mappings with shadow entries */ void workingset_update_node(struct xa_node *node); +extern struct list_lru shadow_nodes; #define mapping_set_update(xas, mapping) do { \ - if (!dax_mapping(mapping) && !shmem_mapping(mapping)) \ + if (!dax_mapping(mapping) && !shmem_mapping(mapping)) { \ xas_set_update(xas, workingset_update_node); \ + xas_set_lru(xas, &shadow_nodes); \ + } \ } while (0) /* linux/mm/page_alloc.c */
diff --git a/mm/workingset.c b/mm/workingset.c
index 8c03afe1d67c..979c7130c266 100644
--- a/mm/workingset.c
+++ b/mm/workingset.c@@ -429,7 +429,7 @@ void workingset_activation(struct folio *folio) * point where they would still be useful. */ -static struct list_lru shadow_nodes; +struct list_lru shadow_nodes; void workingset_update_node(struct xa_node *node) {
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2.11.0