Merge tag 'for-5.14-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...

[linux.git] / mm / util.c

diff --git a/mm/util.c b/mm/util.c
index 99c6cc77de9e2fff60346dd8b2da1b504af8f570..9043d03750a73361751299296b3f4c26105455ad 100644 (file)
--- a/mm/util.c
+++ b/mm/util.c
@@ -731,6 +731,16 @@ int __page_mapcount(struct page *page)
 }
 EXPORT_SYMBOL_GPL(__page_mapcount);
 
+void copy_huge_page(struct page *dst, struct page *src)
+{
+       unsigned i, nr = compound_nr(src);
+
+       for (i = 0; i < nr; i++) {
+               cond_resched();
+               copy_highpage(nth_page(dst, i), nth_page(src, i));
+       }
+}
+
 int sysctl_overcommit_memory __read_mostly = OVERCOMMIT_GUESS;
 int sysctl_overcommit_ratio __read_mostly = 50;
 unsigned long sysctl_overcommit_kbytes __read_mostly;