Lines Matching refs:zstrm
36 static void zcomp_strm_free(struct zcomp_strm *zstrm)
38 if (!IS_ERR_OR_NULL(zstrm->tfm))
39 crypto_free_comp(zstrm->tfm);
40 free_pages((unsigned long)zstrm->buffer, 1);
41 zstrm->tfm = NULL;
42 zstrm->buffer = NULL;
49 static int zcomp_strm_init(struct zcomp_strm *zstrm, struct zcomp *comp)
51 zstrm->tfm = crypto_alloc_comp(comp->name, 0, 0);
56 zstrm->buffer = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1);
57 if (IS_ERR_OR_NULL(zstrm->tfm) || !zstrm->buffer) {
58 zcomp_strm_free(zstrm);
117 int zcomp_compress(struct zcomp_strm *zstrm,
121 * Our dst memory (zstrm->buffer) is always `2 * PAGE_SIZE' sized
136 return crypto_comp_compress(zstrm->tfm,
138 zstrm->buffer, dst_len);
141 int zcomp_decompress(struct zcomp_strm *zstrm,
146 return crypto_comp_decompress(zstrm->tfm,
154 struct zcomp_strm *zstrm;
157 zstrm = per_cpu_ptr(comp->stream, cpu);
158 local_lock_init(&zstrm->lock);
160 ret = zcomp_strm_init(zstrm, comp);
169 struct zcomp_strm *zstrm;
171 zstrm = per_cpu_ptr(comp->stream, cpu);
172 zcomp_strm_free(zstrm);