2 * Copyright (C) 2014 Sergey Senozhatsky.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
14 /* compression/decompression buffer */
16 struct crypto_comp *tfm;
19 /* dynamic per-device compression frontend */
21 struct zcomp_strm * __percpu *stream;
23 struct hlist_node node;
26 int zcomp_cpu_up_prepare(unsigned int cpu, struct hlist_node *node);
27 int zcomp_cpu_dead(unsigned int cpu, struct hlist_node *node);
28 ssize_t zcomp_available_show(const char *comp, char *buf);
29 bool zcomp_available_algorithm(const char *comp);
31 struct zcomp *zcomp_create(const char *comp);
32 void zcomp_destroy(struct zcomp *comp);
34 struct zcomp_strm *zcomp_stream_get(struct zcomp *comp);
35 void zcomp_stream_put(struct zcomp *comp);
37 int zcomp_compress(struct zcomp_strm *zstrm,
38 const void *src, unsigned int *dst_len);
40 int zcomp_decompress(struct zcomp_strm *zstrm,
41 const void *src, unsigned int src_len, void *dst);
43 bool zcomp_set_max_streams(struct zcomp *comp, int num_strm);
44 #endif /* _ZCOMP_H_ */