Update fs/ to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 89d9710..263fed8 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -1040,6 +1040,9 @@
 	};
 	int rc = 0;
 
+	sg_init_table(&dst_sg, 1);
+	sg_init_table(&src_sg, 1);
+
 	if (unlikely(ecryptfs_verbosity > 0)) {
 		ecryptfs_printk(
 			KERN_DEBUG, "Session key encryption key (size [%d]):\n",