mm/rmap.c: fix outdated comment in page_get_anon_vma()

Replace DESTROY_BY_RCU with SLAB_TYPESAFE_BY_RCU because SLAB_DESTROY_BY_RCU has been renamed to SLAB_TYPESAFE_BY_RCU by commit 5f0d5a3 ("mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU") Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Miles Chen <[email protected]> Cc: Paul E. McKenney <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
niw · Dec 1, 2019 · 091e429 · 091e429
1 parent f2400ab
commit 091e429
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/mm/rmap.c b/mm/rmap.c
@@ -477,9 +477,10 @@ void __init anon_vma_init(void)
  * chain and verify that the page in question is indeed mapped in it
  * [ something equivalent to page_mapped_in_vma() ].
  *
- * Since anon_vma's slab is DESTROY_BY_RCU and we know from page_remove_rmap()
- * that the anon_vma pointer from page->mapping is valid if there is a
- * mapcount, we can dereference the anon_vma after observing those.
+ * Since anon_vma's slab is SLAB_TYPESAFE_BY_RCU and we know from
+ * page_remove_rmap() that the anon_vma pointer from page->mapping is valid
+ * if there is a mapcount, we can dereference the anon_vma after observing
+ * those.
  */
 struct anon_vma *page_get_anon_vma(struct page *page)
 {