mm/rmap: fix obsolete comment in __page_check_anon_rmap()

Commit 21333b2 ("ksm: no debug in page_dup_rmap()") has reverted page_dup_rmap() to an inline atomic_inc of mapcount. So page_dup_rmap() does not call __page_check_anon_rmap() anymore. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Miaohe Lin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
mrcsosa · Feb 26, 2021 · 90aaca8 · 90aaca8
1 parent e0af87f
commit 90aaca8
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/mm/rmap.c b/mm/rmap.c
@@ -1086,8 +1086,7 @@ static void __page_check_anon_rmap(struct page *page,
 	 * be set up correctly at this point.
 	 *
 	 * We have exclusion against page_add_anon_rmap because the caller
-	 * always holds the page locked, except if called from page_dup_rmap,
-	 * in which case the page is already known to be setup.
+	 * always holds the page locked.
 	 *
 	 * We have exclusion against page_add_new_anon_rmap because those pages
 	 * are initially only visible via the pagetables, and the pte is locked