diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index c60e519..e1e7b96 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -1219,6 +1219,7 @@
 	.flush = mqueue_flush_file,
 	.poll = mqueue_poll_file,
 	.read = mqueue_read_file,
+	.llseek = default_llseek,
 };
 
 static const struct super_operations mqueue_super_ops = {
diff --git a/ipc/shm.c b/ipc/shm.c
index 52ed77e..7bc46a9 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -298,6 +298,7 @@
 #ifndef CONFIG_MMU
 	.get_unmapped_area	= shm_get_unmapped_area,
 #endif
+	.llseek		= noop_llseek,
 };
 
 static const struct file_operations shm_file_operations_huge = {
@@ -305,6 +306,7 @@
 	.fsync		= shm_fsync,
 	.release	= shm_release,
 	.get_unmapped_area	= shm_get_unmapped_area,
+	.llseek		= noop_llseek,
 };
 
 int is_file_shm_hugepages(struct file *file)