[PATCH v5 09/10] mm/ksm: rename get_ksm_page_flags() to ksm_get_folio_flags

alexs
2024-04-11T06:14:46Z

From: David Hildenbrand <david@redhat.com>

As we are removing get_ksm_page_flags(), make the flags match the new
function name.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
---
mm/ksm.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 61a7b5b037a6..662fdaaf3ea3 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -890,10 +890,10 @@ static void remove_node_from_stable_tree(struct ksm_stable_node *stable_node)
free_stable_node(stable_node);
}

-enum get_ksm_page_flags {
- GET_KSM_PAGE_NOLOCK,
- GET_KSM_PAGE_LOCK,
- GET_KSM_PAGE_TRYLOCK
+enum ksm_get_folio_flags {
+ KSM_GET_FOLIO_NOLOCK,
+ KSM_GET_FOLIO_LOCK,
+ KSM_GET_FOLIO_TRYLOCK
};

/*
@@ -916,7 +916,7 @@ enum get_ksm_page_flags {
* is on its way to being freed; but it is an anomaly to bear in mind.
*/
static struct folio *ksm_get_folio(struct ksm_stable_node *stable_node,
- enum get_ksm_page_flags flags)
+ enum ksm_get_folio_flags flags)
{
struct folio *folio;
void *expected_mapping;
@@ -959,15 +959,15 @@ static struct folio *ksm_get_folio(struct ksm_stable_node *stable_node,
goto stale;
}

- if (flags == GET_KSM_PAGE_TRYLOCK) {
+ if (flags == KSM_GET_FOLIO_TRYLOCK) {
if (!folio_trylock(folio)) {
folio_put(folio);
return ERR_PTR(-EBUSY);
}
- } else if (flags == GET_KSM_PAGE_LOCK)
+ } else if (flags == KSM_GET_FOLIO_LOCK)
folio_lock(folio);

- if (flags != GET_KSM_PAGE_NOLOCK) {
+ if (flags != KSM_GET_FOLIO_NOLOCK) {
if (READ_ONCE(folio->mapping) != expected_mapping) {
folio_unlock(folio);
folio_put(folio);
@@ -1001,7 +1001,7 @@ static void remove_rmap_item_from_tree(struct ksm_rmap_item *rmap_item)
struct folio *folio;

stable_node = rmap_item->head;
- folio = ksm_get_folio(stable_node, GET_KSM_PAGE_LOCK);
+ folio = ksm_get_folio(stable_node, KSM_GET_FOLIO_LOCK);
if (!folio)
goto out;

@@ -1116,7 +1116,7 @@ static int remove_stable_node(struct ksm_stable_node *stable_node)
struct folio *folio;
int err;

- folio = ksm_get_folio(stable_node, GET_KSM_PAGE_LOCK);
+ folio = ksm_get_folio(stable_node, KSM_GET_FOLIO_LOCK);
if (!folio) {
/*
* ksm_get_folio did remove_node_from_stable_tree itself.
@@ -1656,7 +1656,7 @@ static struct folio *stable_node_dup(struct ksm_stable_node **_stable_node_dup,
* stable_node parameter itself will be freed from
* under us if it returns NULL.
*/
- folio = ksm_get_folio(dup, GET_KSM_PAGE_NOLOCK);
+ folio = ksm_get_folio(dup, KSM_GET_FOLIO_NOLOCK);
if (!folio)
continue;
nr += 1;
@@ -1779,7 +1779,7 @@ static struct folio *__stable_node_chain(struct ksm_stable_node **_stable_node_d
if (!is_stable_node_chain(stable_node)) {
if (is_page_sharing_candidate(stable_node)) {
*_stable_node_dup = stable_node;
- return ksm_get_folio(stable_node, GET_KSM_PAGE_NOLOCK);
+ return ksm_get_folio(stable_node, KSM_GET_FOLIO_NOLOCK);
}
/*
* _stable_node_dup set to NULL means the stable_node
@@ -1887,7 +1887,7 @@ static struct page *stable_tree_search(struct page *page)
* fine to continue the walk.
*/
tree_folio = ksm_get_folio(stable_node_any,
- GET_KSM_PAGE_NOLOCK);
+ KSM_GET_FOLIO_NOLOCK);
}
VM_BUG_ON(!stable_node_dup ^ !!stable_node_any);
if (!tree_folio) {
@@ -1948,7 +1948,7 @@ static struct page *stable_tree_search(struct page *page)
* than kpage, but that involves more changes.
*/
tree_folio = ksm_get_folio(stable_node_dup,
- GET_KSM_PAGE_TRYLOCK);
+ KSM_GET_FOLIO_TRYLOCK);

if (PTR_ERR(tree_folio) == -EBUSY)
return ERR_PTR(-EBUSY);
@@ -2120,7 +2120,7 @@ static struct ksm_stable_node *stable_tree_insert(struct folio *kfolio)
* fine to continue the walk.
*/
tree_folio = ksm_get_folio(stable_node_any,
- GET_KSM_PAGE_NOLOCK);
+ KSM_GET_FOLIO_NOLOCK);
}
VM_BUG_ON(!stable_node_dup ^ !!stable_node_any);
if (!tree_folio) {
@@ -2611,7 +2611,7 @@ static struct ksm_rmap_item *scan_get_next_rmap_item(struct page **page)
list_for_each_entry_safe(stable_node, next,
&migrate_nodes, list) {
folio = ksm_get_folio(stable_node,
- GET_KSM_PAGE_NOLOCK);
+ KSM_GET_FOLIO_NOLOCK);
if (folio)
folio_put(folio);
cond_resched();
--
2.43.0