35 static void zcomp_strm_free(struct zcomp_strm *zstrm)  in zcomp_strm_free()  argument
37 	if (!IS_ERR_OR_NULL(zstrm->tfm))  in zcomp_strm_free()
38 		crypto_free_comp(zstrm->tfm);  in zcomp_strm_free()
39 	free_pages((unsigned long)zstrm->buffer, 1);  in zcomp_strm_free()
40 	kfree(zstrm);  in zcomp_strm_free()
49 	struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_KERNEL);  in zcomp_strm_alloc()  local
50 	if (!zstrm)  in zcomp_strm_alloc()
53 	zstrm->tfm = crypto_alloc_comp(comp->name, 0, 0);  in zcomp_strm_alloc()
58 	zstrm->buffer = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1);  in zcomp_strm_alloc()
59 	if (IS_ERR_OR_NULL(zstrm->tfm) || !zstrm->buffer) {  in zcomp_strm_alloc()
60 		zcomp_strm_free(zstrm);  in zcomp_strm_alloc()
61 		zstrm = NULL;  in zcomp_strm_alloc()
63 	return zstrm;  in zcomp_strm_alloc()
124 int zcomp_compress(struct zcomp_strm *zstrm,  in zcomp_compress()  argument
143 	return crypto_comp_compress(zstrm->tfm,  in zcomp_compress()
145 			zstrm->buffer, dst_len);  in zcomp_compress()
148 int zcomp_decompress(struct zcomp_strm *zstrm,  in zcomp_decompress()  argument
153 	return crypto_comp_decompress(zstrm->tfm,  in zcomp_decompress()
161 	struct zcomp_strm *zstrm;  in zcomp_cpu_up_prepare()  local
166 	zstrm = zcomp_strm_alloc(comp);  in zcomp_cpu_up_prepare()
167 	if (IS_ERR_OR_NULL(zstrm)) {  in zcomp_cpu_up_prepare()
171 	*per_cpu_ptr(comp->stream, cpu) = zstrm;  in zcomp_cpu_up_prepare()
178 	struct zcomp_strm *zstrm;  in zcomp_cpu_dead()  local
180 	zstrm = *per_cpu_ptr(comp->stream, cpu);  in zcomp_cpu_dead()
181 	if (!IS_ERR_OR_NULL(zstrm))  in zcomp_cpu_dead()
182 		zcomp_strm_free(zstrm);  in zcomp_cpu_dead()