[JFFS2] Fill in f_fsid field in jffs2_statfs()

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

fs/jffs2/fs.c

diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 086c438..89e9b73 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -207,6 +207,8 @@
 	buf->f_files = 0;
 	buf->f_ffree = 0;
 	buf->f_namelen = JFFS2_MAX_NAME_LEN;
+	buf->f_fsid.val[0] = JFFS2_SUPER_MAGIC;
+	buf->f_fsid.val[1] = c->mtd->index;
 
 	spin_lock(&c->erase_completion_lock);
 	avail = c->dirty_size + c->free_size;