1 files changed, 35 insertions, 0 deletions

diff --git a/include/litmus/kexclu_affinity.h b/include/litmus/kexclu_affinity.h
new file mode 100644
index 000000000000..f6355de49074
--- /dev/null
+++ b/include/litmus/kexclu_affinity.h
@@ -0,0 +1,35 @@
+#ifndef LITMUS_AFF_OBS_H
+#define LITMUS_AFF_OBS_H
+
+#include <litmus/locking.h>
+
+struct affinity_observer_ops;
+
+struct affinity_observer
+{
+        struct affinity_observer_ops* ops;
+        int type;
+        int ident;
+
+        struct litmus_lock* lock;  // the lock under observation
+};
+
+typedef int (*aff_obs_open_t)(struct affinity_observer* aff_obs,
+                                                          void* __user arg);
+typedef int (*aff_obs_close_t)(struct affinity_observer* aff_obs);
+typedef void (*aff_obs_free_t)(struct affinity_observer* aff_obs);
+
+struct affinity_observer_ops
+{
+        aff_obs_open_t open;
+        aff_obs_close_t close;
+        aff_obs_free_t deallocate;
+};
+
+struct litmus_lock* get_lock_from_od(int od);
+
+void affinity_observer_new(struct affinity_observer* aff,
+                                                   struct affinity_observer_ops* ops,
+                                                   struct affinity_observer_args* args);
+
+#endif