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authorMatthew Wilcox (Oracle) <willy@infradead.org>2022-09-02 20:46:01 +0100
committerAndrew Morton <akpm@linux-foundation.org>2022-10-03 14:02:45 -0700
commit681ecf6301786cb06942b57f0ef7103b07ae6813 (patch)
tree6b71119ff4c43fcf44ca4b42eecb98980bdd1d92
parentd788f5b374c2ba204fed57e39acf2452acc24812 (diff)
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mm: add folio_add_lru_vma()
Convert lru_cache_add_inactive_or_unevictable() to folio_add_lru_vma() and add a compatibility wrapper. Link: https://lkml.kernel.org/r/20220902194653.1739778-6-willy@infradead.org Signed-off-by: "Matthew Wilcox (Oracle)" <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--include/linux/swap.h10
-rw-r--r--mm/folio-compat.c6
-rw-r--r--mm/swap.c19
3 files changed, 20 insertions, 15 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 6308150b234a..2ede1e3695d9 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -379,11 +379,11 @@ extern unsigned long totalreserve_pages;
/* linux/mm/swap.c */
-extern void lru_note_cost(struct lruvec *lruvec, bool file,
- unsigned int nr_pages);
-extern void lru_note_cost_folio(struct folio *);
-extern void folio_add_lru(struct folio *);
-extern void lru_cache_add(struct page *);
+void lru_note_cost(struct lruvec *lruvec, bool file, unsigned int nr_pages);
+void lru_note_cost_folio(struct folio *);
+void folio_add_lru(struct folio *);
+void folio_add_lru_vma(struct folio *, struct vm_area_struct *);
+void lru_cache_add(struct page *);
void mark_page_accessed(struct page *);
void folio_mark_accessed(struct folio *);
diff --git a/mm/folio-compat.c b/mm/folio-compat.c
index 458618c7302c..e1e23b4947d7 100644
--- a/mm/folio-compat.c
+++ b/mm/folio-compat.c
@@ -88,6 +88,12 @@ void lru_cache_add(struct page *page)
}
EXPORT_SYMBOL(lru_cache_add);
+void lru_cache_add_inactive_or_unevictable(struct page *page,
+ struct vm_area_struct *vma)
+{
+ folio_add_lru_vma(page_folio(page), vma);
+}
+
int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
pgoff_t index, gfp_t gfp)
{
diff --git a/mm/swap.c b/mm/swap.c
index 0a3871a70952..955930f41d20 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -537,22 +537,21 @@ void folio_add_lru(struct folio *folio)
EXPORT_SYMBOL(folio_add_lru);
/**
- * lru_cache_add_inactive_or_unevictable
- * @page: the page to be added to LRU
- * @vma: vma in which page is mapped for determining reclaimability
+ * folio_add_lru_vma() - Add a folio to the appropate LRU list for this VMA.
+ * @folio: The folio to be added to the LRU.
+ * @vma: VMA in which the folio is mapped.
*
- * Place @page on the inactive or unevictable LRU list, depending on its
- * evictability.
+ * If the VMA is mlocked, @folio is added to the unevictable list.
+ * Otherwise, it is treated the same way as folio_add_lru().
*/
-void lru_cache_add_inactive_or_unevictable(struct page *page,
- struct vm_area_struct *vma)
+void folio_add_lru_vma(struct folio *folio, struct vm_area_struct *vma)
{
- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG_ON_FOLIO(folio_test_lru(folio), folio);
if (unlikely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) == VM_LOCKED))
- mlock_new_page(page);
+ mlock_new_page(&folio->page);
else
- lru_cache_add(page);
+ folio_add_lru(folio);
}
/*