folio-compat: remove lru_cache_add()

There are no longer any callers of lru_cache_add(), so remove it.  This
saves 79 bytes of kernel text.  Also cleanup some comments such that
they reference the new folio_add_lru() instead.

Link: https://lkml.kernel.org/r/20221101175326.13265-6-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/swap.h b/include/linux/swap.h
index b61e200..0ceed49 100644 (file)
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -381,7 +381,6 @@ void lru_note_cost(struct lruvec *lruvec, bool file,
 void lru_note_cost_refault(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 86933fa..69ed257 100644 (file)
--- a/mm/folio-compat.c
+++ b/mm/folio-compat.c
@@ -76,12 +76,6 @@ bool redirty_page_for_writepage(struct writeback_control *wbc,
 }
 EXPORT_SYMBOL(redirty_page_for_writepage);
 
-void lru_cache_add(struct page *page)
-{
-       folio_add_lru(page_folio(page));
-}
-EXPORT_SYMBOL(lru_cache_add);
-
 void lru_cache_add_inactive_or_unevictable(struct page *page,
                struct vm_area_struct *vma)
 {

diff --git a/mm/truncate.c b/mm/truncate.c
index c7bfd24..7b4ea4c 100644 (file)
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -565,7 +565,7 @@ EXPORT_SYMBOL(invalidate_mapping_pages);
  * refcount.  We do this because invalidate_inode_pages2() needs stronger
  * invalidation guarantees, and cannot afford to leave pages behind because
  * shrink_page_list() has a temp ref on them, or because they're transiently
- * sitting in the lru_cache_add() pagevecs.
+ * sitting in the folio_add_lru() pagevecs.
  */
 static int invalidate_complete_folio2(struct address_space *mapping,
                                        struct folio *folio)

diff --git a/mm/workingset.c b/mm/workingset.c
index d2d0297..1a86645 100644 (file)
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -492,7 +492,10 @@ void workingset_refault(struct folio *folio, void *shadow)
        /* Folio was active prior to eviction */
        if (workingset) {
                folio_set_workingset(folio);
-               /* XXX: Move to lru_cache_add() when it supports new vs putback */
+               /*
+                * XXX: Move to folio_add_lru() when it supports new vs
+                * putback
+                */
                lru_note_cost_refault(folio);
                mod_lruvec_state(lruvec, WORKINGSET_RESTORE_BASE + file, nr);
        }