[PATCH 07/11] mm/ksm: Convert chain series funcs to use folio

alexs
2024-03-20T07:37:59Z

In ksm stable tree all page are single, let's convert them to use folios.

Signed-off-by: Alex Shi (tencent) <alexs@kernel.org>
Cc: Izik Eidus <izik.eidus@ravellosystems.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Chris Wright <chrisw@sous-sol.org>
---
mm/ksm.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index ad3a0294a2ec..648fa695424b 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1761,7 +1761,7 @@ static struct ksm_stable_node *stable_node_dup_any(struct ksm_stable_node *stabl
* function and will be overwritten in all cases, the caller doesn't
* need to initialize it.
*/
-static struct page *__stable_node_chain(struct ksm_stable_node **_stable_node_dup,
+static void *__stable_node_chain(struct ksm_stable_node **_stable_node_dup,
struct ksm_stable_node **_stable_node,
struct rb_root *root,
bool prune_stale_stable_nodes)
@@ -1783,24 +1783,24 @@ static struct page *__stable_node_chain(struct ksm_stable_node **_stable_node_du
prune_stale_stable_nodes);
}

-static __always_inline struct page *chain_prune(struct ksm_stable_node **s_n_d,
+static __always_inline void *chain_prune(struct ksm_stable_node **s_n_d,
struct ksm_stable_node **s_n,
struct rb_root *root)
{
return __stable_node_chain(s_n_d, s_n, root, true);
}

-static __always_inline struct page *chain(struct ksm_stable_node **s_n_d,
+static __always_inline void *chain(struct ksm_stable_node **s_n_d,
struct ksm_stable_node *s_n,
struct rb_root *root)
{
struct ksm_stable_node *old_stable_node = s_n;
- struct page *tree_page;
+ struct folio *tree_folio;

- tree_page = __stable_node_chain(s_n_d, &s_n, root, false);
+ tree_folio = __stable_node_chain(s_n_d, &s_n, root, false);
/* not pruning dups so s_n cannot have changed */
VM_BUG_ON(s_n != old_stable_node);
- return tree_page;
+ return tree_folio;
}

/*
--
2.43.0