Merge branch 'xen-tmem-selfballoon-v8' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem into stable/drivers

* 'xen-tmem-selfballoon-v8' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem:
  xen: tmem: self-ballooning and frontswap-selfshrinking

2 files changed, 15 insertions, 0 deletions

diff --git a/include/xen/balloon.h b/include/xen/balloon.h
index a2b22f01a51..4076ed72afb 100644
--- a/include/xen/balloon.h
+++ b/include/xen/balloon.h
@@ -23,3 +23,13 @@ void balloon_set_new_target(unsigned long target);
 
 int alloc_xenballooned_pages(int nr_pages, struct page** pages);
 void free_xenballooned_pages(int nr_pages, struct page** pages);
+
+struct sys_device;
+#ifdef CONFIG_XEN_SELFBALLOONING
+extern int register_xen_selfballooning(struct sys_device *sysdev);
+#else
+static inline int register_xen_selfballooning(struct sys_device *sysdev)
+{
+        return -ENOSYS;
+}
+#endif
diff --git a/include/xen/tmem.h b/include/xen/tmem.h
new file mode 100644
index 00000000000..82e2c83a32f
--- /dev/null
+++ b/include/xen/tmem.h
@@ -0,0 +1,5 @@
+#ifndef _XEN_TMEM_H
+#define _XEN_TMEM_H
+/* defined in drivers/xen/tmem.c */
+extern int tmem_enabled;
+#endif /* _XEN_TMEM_H */