update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / spdk / ocf / src / ocf_freelist.h

diff --git a/ceph/src/spdk/ocf/src/ocf_freelist.h b/ceph/src/spdk/ocf/src/ocf_freelist.h
new file mode 100644 (file)
index 0000000..3b67b2a
--- /dev/null
+++ b/ceph/src/spdk/ocf/src/ocf_freelist.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright(c) 2019-2019 Intel Corporation
+ * SPDX-License-Identifier: BSD-3-Clause-Clear
+ */
+
+#ifndef __OCF_FREELIST_H__
+#define __OCF_FREELIST_H__
+
+#include "ocf_cache_priv.h"
+
+struct ocf_freelist;
+
+typedef struct ocf_freelist *ocf_freelist_t;
+
+/* Init / deinit freelist runtime structures */
+ocf_freelist_t ocf_freelist_init(struct ocf_cache *cache);
+void ocf_freelist_deinit(ocf_freelist_t freelist);
+
+/* Assign unused cachelines to freelist */
+void ocf_freelist_populate(ocf_freelist_t freelist,
+               ocf_cache_line_t num_free_clines);
+
+/* Get cacheline from freelist */
+bool ocf_freelist_get_cache_line(ocf_freelist_t freelist,
+               ocf_cache_line_t *cline);
+
+/* Put cacheline back to freelist */
+void ocf_freelist_put_cache_line(ocf_freelist_t freelist,
+               ocf_cache_line_t cline);
+
+/* Return total number of free cachelines */
+ocf_cache_line_t ocf_freelist_num_free(ocf_freelist_t freelist);
+
+#endif /* __OCF_FREELIST_H__ */