[PATCH] mm: include <linux/ramfs.h> for generic_file_vm_ops definition

[Ben Dooks]

The generic_file_vm_ops is defined in <linux/ramfs.h> so include
it to fix the following warning:

mm/filemap.c:2717:35: warning: symbol 'generic_file_vm_ops' was not declared. Should it be static?

Signed-off0-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
 mm/filemap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/filemap.c b/mm/filemap.c
index 1146fcfa3215..85b7d087eb45 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -40,6 +40,7 @@
 #include <linux/rmap.h>
 #include <linux/delayacct.h>
 #include <linux/psi.h>
+#include <linux/ramfs.h>
 #include "internal.h"
 
 #define CREATE_TRACE_POINTS
-- 
2.23.0