mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd

[linux-2.6-microblaze.git] / mm / memfd.c

diff --git a/mm/memfd.c b/mm/memfd.c
index 97264c7..650e65a 100644 (file)
--- a/mm/memfd.c
+++ b/mm/memfd.c
@@ -131,7 +131,8 @@ static unsigned int *memfd_file_seals_ptr(struct file *file)
 #define F_ALL_SEALS (F_SEAL_SEAL | \
                     F_SEAL_SHRINK | \
                     F_SEAL_GROW | \
-                    F_SEAL_WRITE)
+                    F_SEAL_WRITE | \
+                    F_SEAL_FUTURE_WRITE)
 
 static int memfd_add_seals(struct file *file, unsigned int seals)
 {