2 files changed, 2 insertions, 2 deletions

diff --git a/kernel/Makefile b/kernel/Makefile
index 8885627ea021..db9af707ff5b 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -9,7 +9,7 @@ obj-y     = sched.o fork.o exec_domain.o panic.o printk.o profile.o \
             rcupdate.o extable.o params.o posix-timers.o \
             kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
             hrtimer.o rwsem.o latency.o nsproxy.o srcu.o \
-            utsname.o notifier.o
+            utsname.o notifier.o ksysfs.o
 
 obj-$(CONFIG_SYSCTL) += sysctl_check.o
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
@@ -49,7 +49,6 @@ obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o
 obj-$(CONFIG_AUDIT_TREE) += audit_tree.o
 obj-$(CONFIG_KPROBES) += kprobes.o
-obj-$(CONFIG_SYSFS) += ksysfs.o
 obj-$(CONFIG_DETECT_SOFTLOCKUP) += softlockup.o
 obj-$(CONFIG_GENERIC_HARDIRQS) += irq/
 obj-$(CONFIG_SECCOMP) += seccomp.o
diff --git a/kernel/relay.c b/kernel/relay.c
index 61134eb7a0c8..7c0373322f18 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -92,6 +92,7 @@ static int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma)
                 return -EINVAL;
 
         vma->vm_ops = &relay_file_mmap_ops;
+        vma->vm_flags |= VM_DONTEXPAND;
         vma->vm_private_data = buf;
         buf->chan->cb->buf_mapped(buf, filp);