65 static void zcomp_strm_free(struct zcomp *comp, struct zcomp_strm *zstrm)  in zcomp_strm_free()  argument
68 		comp->backend->destroy(zstrm->private);  in zcomp_strm_free()
77 static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp)  in zcomp_strm_alloc()  argument
83 	zstrm->private = comp->backend->create();  in zcomp_strm_alloc()
90 		zcomp_strm_free(comp, zstrm);  in zcomp_strm_alloc()
100 static struct zcomp_strm *zcomp_strm_multi_find(struct zcomp *comp)  in zcomp_strm_multi_find()  argument
102 	struct zcomp_strm_multi *zs = comp->stream;  in zcomp_strm_multi_find()
124 		zstrm = zcomp_strm_alloc(comp);  in zcomp_strm_multi_find()
138 static void zcomp_strm_multi_release(struct zcomp *comp, struct zcomp_strm *zstrm)  in zcomp_strm_multi_release()  argument
140 	struct zcomp_strm_multi *zs = comp->stream;  in zcomp_strm_multi_release()
152 	zcomp_strm_free(comp, zstrm);  in zcomp_strm_multi_release()
156 static bool zcomp_strm_multi_set_max_streams(struct zcomp *comp, int num_strm)  in zcomp_strm_multi_set_max_streams()  argument
158 	struct zcomp_strm_multi *zs = comp->stream;  in zcomp_strm_multi_set_max_streams()
171 		zcomp_strm_free(comp, zstrm);  in zcomp_strm_multi_set_max_streams()
178 static void zcomp_strm_multi_destroy(struct zcomp *comp)  in zcomp_strm_multi_destroy()  argument
180 	struct zcomp_strm_multi *zs = comp->stream;  in zcomp_strm_multi_destroy()
187 		zcomp_strm_free(comp, zstrm);  in zcomp_strm_multi_destroy()
192 static int zcomp_strm_multi_create(struct zcomp *comp, int max_strm)  in zcomp_strm_multi_create()  argument
197 	comp->destroy = zcomp_strm_multi_destroy;  in zcomp_strm_multi_create()
198 	comp->strm_find = zcomp_strm_multi_find;  in zcomp_strm_multi_create()
199 	comp->strm_release = zcomp_strm_multi_release;  in zcomp_strm_multi_create()
200 	comp->set_max_streams = zcomp_strm_multi_set_max_streams;  in zcomp_strm_multi_create()
205 	comp->stream = zs;  in zcomp_strm_multi_create()
212 	zstrm = zcomp_strm_alloc(comp);  in zcomp_strm_multi_create()
221 static struct zcomp_strm *zcomp_strm_single_find(struct zcomp *comp)  in zcomp_strm_single_find()  argument
223 	struct zcomp_strm_single *zs = comp->stream;  in zcomp_strm_single_find()
228 static void zcomp_strm_single_release(struct zcomp *comp,  in zcomp_strm_single_release()  argument
231 	struct zcomp_strm_single *zs = comp->stream;  in zcomp_strm_single_release()
235 static bool zcomp_strm_single_set_max_streams(struct zcomp *comp, int num_strm)  in zcomp_strm_single_set_max_streams()  argument
241 static void zcomp_strm_single_destroy(struct zcomp *comp)  in zcomp_strm_single_destroy()  argument
243 	struct zcomp_strm_single *zs = comp->stream;  in zcomp_strm_single_destroy()
244 	zcomp_strm_free(comp, zs->zstrm);  in zcomp_strm_single_destroy()
248 static int zcomp_strm_single_create(struct zcomp *comp)  in zcomp_strm_single_create()  argument
252 	comp->destroy = zcomp_strm_single_destroy;  in zcomp_strm_single_create()
253 	comp->strm_find = zcomp_strm_single_find;  in zcomp_strm_single_create()
254 	comp->strm_release = zcomp_strm_single_release;  in zcomp_strm_single_create()
255 	comp->set_max_streams = zcomp_strm_single_set_max_streams;  in zcomp_strm_single_create()
260 	comp->stream = zs;  in zcomp_strm_single_create()
262 	zs->zstrm = zcomp_strm_alloc(comp);  in zcomp_strm_single_create()
271 ssize_t zcomp_available_show(const char *comp, char *buf)  in zcomp_available_show()  argument
277 		if (!strcmp(comp, backends[i]->name))  in zcomp_available_show()
289 bool zcomp_available_algorithm(const char *comp)  in zcomp_available_algorithm()  argument
291 	return find_backend(comp) != NULL;  in zcomp_available_algorithm()
294 bool zcomp_set_max_streams(struct zcomp *comp, int num_strm)  in zcomp_set_max_streams()  argument
296 	return comp->set_max_streams(comp, num_strm);  in zcomp_set_max_streams()
299 struct zcomp_strm *zcomp_strm_find(struct zcomp *comp)  in zcomp_strm_find()  argument
301 	return comp->strm_find(comp);  in zcomp_strm_find()
304 void zcomp_strm_release(struct zcomp *comp, struct zcomp_strm *zstrm)  in zcomp_strm_release()  argument
306 	comp->strm_release(comp, zstrm);  in zcomp_strm_release()
309 int zcomp_compress(struct zcomp *comp, struct zcomp_strm *zstrm,  in zcomp_compress()  argument
312 	return comp->backend->compress(src, zstrm->buffer, dst_len,  in zcomp_compress()
316 int zcomp_decompress(struct zcomp *comp, const unsigned char *src,  in zcomp_decompress()  argument
319 	return comp->backend->decompress(src, src_len, dst);  in zcomp_decompress()
322 void zcomp_destroy(struct zcomp *comp)  in zcomp_destroy()  argument
324 	comp->destroy(comp);  in zcomp_destroy()
325 	kfree(comp);  in zcomp_destroy()
338 	struct zcomp *comp;  in zcomp_create()  local
346 	comp = kzalloc(sizeof(struct zcomp), GFP_KERNEL);  in zcomp_create()
347 	if (!comp)  in zcomp_create()
350 	comp->backend = backend;  in zcomp_create()
352 		error = zcomp_strm_multi_create(comp, max_strm);  in zcomp_create()
354 		error = zcomp_strm_single_create(comp);  in zcomp_create()
356 		kfree(comp);  in zcomp_create()
359 	return comp;  in zcomp_create()