1 files changed, 6 insertions, 0 deletions

diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index 07a750197bb0..08d90fba952c 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -237,6 +237,12 @@ void os_close_file(int fd)
 {
         close(fd);
 }
+int os_fsync_file(int fd)
+{
+        if (fsync(fd) < 0)
+            return -errno;
+        return 0;
+}
 
 int os_seek_file(int fd, unsigned long long offset)
 {