userfaultfd: replace lru_cache functions with folio_add functions

Replaces lru_cache_add() and lru_cache_add_inactive_or_unevictable() with
folio_add_lru() and folio_add_lru_vma().  This is in preparation for the
removal of lru_cache_add().

Link: https://lkml.kernel.org/r/20221101175326.13265-4-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: 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/mm/userfaultfd.c b/mm/userfaultfd.c
index 650ab6cfd5f49a36ff478149b9a14586fa6740cf..b7a9479bece2173d32df661bcf30c0db73027930 100644 (file)
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -66,6 +66,7 @@ int mfill_atomic_install_pte(struct mm_struct *dst_mm, pmd_t *dst_pmd,
        bool vm_shared = dst_vma->vm_flags & VM_SHARED;
        bool page_in_cache = page_mapping(page);
        spinlock_t *ptl;
+       struct folio *folio;
        struct inode *inode;
        pgoff_t offset, max_off;
 
@@ -113,14 +114,15 @@ int mfill_atomic_install_pte(struct mm_struct *dst_mm, pmd_t *dst_pmd,
        if (!pte_none_mostly(*dst_pte))
                goto out_unlock;
 
+       folio = page_folio(page);
        if (page_in_cache) {
                /* Usually, cache pages are already added to LRU */
                if (newly_allocated)
-                       lru_cache_add(page);
+                       folio_add_lru(folio);
                page_add_file_rmap(page, dst_vma, false);
        } else {
                page_add_new_anon_rmap(page, dst_vma, dst_addr);
-               lru_cache_add_inactive_or_unevictable(page, dst_vma);
+               folio_add_lru_vma(folio, dst_vma);
        }
 
        /*