Quite straightforward, the page functions are converted to
corresponding folio functions. Same for comments.
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Oscar Salvador <osalvador@suse.de>
---
mm/migrate.c | 54 ++++++++++++++++++++++++++--------------------------
1 file changed, 27 insertions(+), 27 deletions(-)
@@ -1150,79 +1150,79 @@ static int __unmap_and_move(struct folio *src, struct folio *dst,
}
/*
- * Obtain the lock on page, remove all ptes and migrate the page
- * to the newly allocated page in newpage.
+ * Obtain the lock on folio, remove all ptes and migrate the folio
+ * to the newly allocated folio in dst.
*/
static int unmap_and_move(new_page_t get_new_page,
free_page_t put_new_page,
- unsigned long private, struct page *page,
+ unsigned long private, struct folio *src,
int force, enum migrate_mode mode,
enum migrate_reason reason,
struct list_head *ret)
{
- struct folio *dst, *src = page_folio(page);
+ struct folio *dst;
int rc = MIGRATEPAGE_SUCCESS;
struct page *newpage = NULL;
- if (!thp_migration_supported() && PageTransHuge(page))
+ if (!thp_migration_supported() && folio_test_transhuge(src))
return -ENOSYS;
- if (page_count(page) == 1) {
- /* Page was freed from under us. So we are done. */
- ClearPageActive(page);
- ClearPageUnevictable(page);
+ if (folio_ref_count(src) == 1) {
+ /* Folio was freed from under us. So we are done. */
+ folio_clear_active(src);
+ folio_clear_unevictable(src);
/* free_pages_prepare() will clear PG_isolated. */
goto out;
}
- newpage = get_new_page(page, private);
+ newpage = get_new_page(&src->page, private);
if (!newpage)
return -ENOMEM;
dst = page_folio(newpage);
- newpage->private = 0;
+ dst->private = 0;
rc = __unmap_and_move(src, dst, force, mode);
if (rc == MIGRATEPAGE_SUCCESS)
- set_page_owner_migrate_reason(newpage, reason);
+ set_page_owner_migrate_reason(&dst->page, reason);
out:
if (rc != -EAGAIN) {
/*
- * A page that has been migrated has all references
- * removed and will be freed. A page that has not been
+ * A folio that has been migrated has all references
+ * removed and will be freed. A folio that has not been
* migrated will have kept its references and be restored.
*/
- list_del(&page->lru);
+ list_del(&src->lru);
}
/*
* If migration is successful, releases reference grabbed during
- * isolation. Otherwise, restore the page to right list unless
+ * isolation. Otherwise, restore the folio to right list unless
* we want to retry.
*/
if (rc == MIGRATEPAGE_SUCCESS) {
/*
- * Compaction can migrate also non-LRU pages which are
+ * Compaction can migrate also non-LRU folios which are
* not accounted to NR_ISOLATED_*. They can be recognized
- * as __PageMovable
+ * as __folio_test_movable
*/
- if (likely(!__PageMovable(page)))
- mod_node_page_state(page_pgdat(page), NR_ISOLATED_ANON +
- page_is_file_lru(page), -thp_nr_pages(page));
+ if (likely(!__folio_test_movable(src)))
+ mod_node_page_state(folio_pgdat(src), NR_ISOLATED_ANON +
+ folio_is_file_lru(src), -folio_nr_pages(src));
if (reason != MR_MEMORY_FAILURE)
/*
- * We release the page in page_handle_poison.
+ * We release the folio in page_handle_poison.
*/
- put_page(page);
+ folio_put(src);
} else {
if (rc != -EAGAIN)
- list_add_tail(&page->lru, ret);
+ list_add_tail(&src->lru, ret);
if (put_new_page)
- put_new_page(newpage, private);
+ put_new_page(&dst->page, private);
else
- put_page(newpage);
+ folio_put(dst);
}
return rc;
@@ -1459,7 +1459,7 @@ int migrate_pages(struct list_head *from, new_page_t get_new_page,
&ret_pages);
else
rc = unmap_and_move(get_new_page, put_new_page,
- private, page, pass > 2, mode,
+ private, page_folio(page), pass > 2, mode,
reason, &ret_pages);
/*
* The rules are: