ceph/src/spdk/ocf/src/ocf_freelist.h

   1 /*
   2  * Copyright(c) 2019-2019 Intel Corporation
   3  * SPDX-License-Identifier: BSD-3-Clause-Clear
   4  */
   5
   6 #ifndef __OCF_FREELIST_H__
   7 #define __OCF_FREELIST_H__
   8
   9 #include "ocf_cache_priv.h"
  10
  11 struct ocf_freelist;
  12
  13 typedef struct ocf_freelist *ocf_freelist_t;
  14
  15 /* Init / deinit freelist runtime structures */
  16 ocf_freelist_t ocf_freelist_init(struct ocf_cache *cache);
  17 void ocf_freelist_deinit(ocf_freelist_t freelist);
  18
  19 /* Assign unused cachelines to freelist */
  20 void ocf_freelist_populate(ocf_freelist_t freelist,
  21                 ocf_cache_line_t num_free_clines);
  22
  23 /* Get cacheline from freelist */
  24 bool ocf_freelist_get_cache_line(ocf_freelist_t freelist,
  25                 ocf_cache_line_t *cline);
  26
  27 /* Put cacheline back to freelist */
  28 void ocf_freelist_put_cache_line(ocf_freelist_t freelist,
  29                 ocf_cache_line_t cline);
  30
  31 /* Return total number of free cachelines */
  32 ocf_cache_line_t ocf_freelist_num_free(ocf_freelist_t freelist);
  33
  34 #endif /* __OCF_FREELIST_H__ */