[PATCH v2 12/14] mm/ksm: return folio for chain series funcs

alexs
2024-03-22T08:35:06Z

Since all caller changed to folios, change their return type to folio
too.

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 | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index afcf26510669..15a78a9bab59 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1623,10 +1623,10 @@ bool is_page_sharing_candidate(struct ksm_stable_node *stable_node)
return __is_page_sharing_candidate(stable_node, 0);
}

-static void *stable_node_dup(struct ksm_stable_node **_stable_node_dup,
- struct ksm_stable_node **_stable_node,
- struct rb_root *root,
- bool prune_stale_stable_nodes)
+static struct folio *stable_node_dup(struct ksm_stable_node **_stable_node_dup,
+ struct ksm_stable_node **_stable_node,
+ struct rb_root *root,
+ bool prune_stale_stable_nodes)
{
struct ksm_stable_node *dup, *found = NULL, *stable_node = *_stable_node;
struct hlist_node *hlist_safe;
@@ -1769,10 +1769,10 @@ 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 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)
+static struct folio *__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)
{
struct ksm_stable_node *stable_node = *_stable_node;
if (!is_stable_node_chain(stable_node)) {
@@ -1791,16 +1791,16 @@ static void *__stable_node_chain(struct ksm_stable_node **_stable_node_dup,
prune_stale_stable_nodes);
}

-static __always_inline void *chain_prune(struct ksm_stable_node **s_n_d,
- struct ksm_stable_node **s_n,
- struct rb_root *root)
+static __always_inline struct folio *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 void *chain(struct ksm_stable_node **s_n_d,
- struct ksm_stable_node *s_n,
- struct rb_root *root)
+static __always_inline struct folio *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 folio *tree_folio;
--
2.43.0