36 	z_stream strm;  member
45 	vfree(workspace->strm.workspace);  in zlib_free_workspace()
61 	workspace->strm.workspace = vmalloc(workspacesize);  in zlib_alloc_workspace()
63 	if (!workspace->strm.workspace || !workspace->buf)  in zlib_alloc_workspace()
97 	if (Z_OK != zlib_deflateInit(&workspace->strm, 3)) {  in zlib_compress_pages()
103 	workspace->strm.total_in = 0;  in zlib_compress_pages()
104 	workspace->strm.total_out = 0;  in zlib_compress_pages()
118 	workspace->strm.next_in = data_in;  in zlib_compress_pages()
119 	workspace->strm.next_out = cpage_out;  in zlib_compress_pages()
120 	workspace->strm.avail_out = PAGE_CACHE_SIZE;  in zlib_compress_pages()
121 	workspace->strm.avail_in = min(len, PAGE_CACHE_SIZE);  in zlib_compress_pages()
123 	while (workspace->strm.total_in < len) {  in zlib_compress_pages()
124 		ret = zlib_deflate(&workspace->strm, Z_SYNC_FLUSH);  in zlib_compress_pages()
128 			zlib_deflateEnd(&workspace->strm);  in zlib_compress_pages()
134 		if (workspace->strm.total_in > 8192 &&  in zlib_compress_pages()
135 		    workspace->strm.total_in <  in zlib_compress_pages()
136 		    workspace->strm.total_out) {  in zlib_compress_pages()
144 		if (workspace->strm.avail_out == 0) {  in zlib_compress_pages()
159 			workspace->strm.avail_out = PAGE_CACHE_SIZE;  in zlib_compress_pages()
160 			workspace->strm.next_out = cpage_out;  in zlib_compress_pages()
163 		if (workspace->strm.total_in >= len)  in zlib_compress_pages()
167 		if (workspace->strm.avail_in == 0) {  in zlib_compress_pages()
168 			if (workspace->strm.total_out > max_out)  in zlib_compress_pages()
171 			bytes_left = len - workspace->strm.total_in;  in zlib_compress_pages()
179 			workspace->strm.avail_in = min(bytes_left,  in zlib_compress_pages()
181 			workspace->strm.next_in = data_in;  in zlib_compress_pages()
184 	workspace->strm.avail_in = 0;  in zlib_compress_pages()
185 	ret = zlib_deflate(&workspace->strm, Z_FINISH);  in zlib_compress_pages()
186 	zlib_deflateEnd(&workspace->strm);  in zlib_compress_pages()
193 	if (workspace->strm.total_out >= workspace->strm.total_in) {  in zlib_compress_pages()
199 	*total_out = workspace->strm.total_out;  in zlib_compress_pages()
200 	*total_in = workspace->strm.total_in;  in zlib_compress_pages()
231 	workspace->strm.next_in = data_in;  in zlib_decompress_biovec()
232 	workspace->strm.avail_in = min_t(size_t, srclen, PAGE_CACHE_SIZE);  in zlib_decompress_biovec()
233 	workspace->strm.total_in = 0;  in zlib_decompress_biovec()
235 	workspace->strm.total_out = 0;  in zlib_decompress_biovec()
236 	workspace->strm.next_out = workspace->buf;  in zlib_decompress_biovec()
237 	workspace->strm.avail_out = PAGE_CACHE_SIZE;  in zlib_decompress_biovec()
247 		workspace->strm.next_in += 2;  in zlib_decompress_biovec()
248 		workspace->strm.avail_in -= 2;  in zlib_decompress_biovec()
251 	if (Z_OK != zlib_inflateInit2(&workspace->strm, wbits)) {  in zlib_decompress_biovec()
255 	while (workspace->strm.total_in < srclen) {  in zlib_decompress_biovec()
256 		ret = zlib_inflate(&workspace->strm, Z_NO_FLUSH);  in zlib_decompress_biovec()
261 		total_out = workspace->strm.total_out;  in zlib_decompress_biovec()
276 		workspace->strm.next_out = workspace->buf;  in zlib_decompress_biovec()
277 		workspace->strm.avail_out = PAGE_CACHE_SIZE;  in zlib_decompress_biovec()
279 		if (workspace->strm.avail_in == 0) {  in zlib_decompress_biovec()
288 			workspace->strm.next_in = data_in;  in zlib_decompress_biovec()
289 			tmp = srclen - workspace->strm.total_in;  in zlib_decompress_biovec()
290 			workspace->strm.avail_in = min(tmp,  in zlib_decompress_biovec()
299 	zlib_inflateEnd(&workspace->strm);  in zlib_decompress_biovec()
323 	workspace->strm.next_in = data_in;  in zlib_decompress()
324 	workspace->strm.avail_in = srclen;  in zlib_decompress()
325 	workspace->strm.total_in = 0;  in zlib_decompress()
327 	workspace->strm.next_out = workspace->buf;  in zlib_decompress()
328 	workspace->strm.avail_out = PAGE_CACHE_SIZE;  in zlib_decompress()
329 	workspace->strm.total_out = 0;  in zlib_decompress()
337 		workspace->strm.next_in += 2;  in zlib_decompress()
338 		workspace->strm.avail_in -= 2;  in zlib_decompress()
341 	if (Z_OK != zlib_inflateInit2(&workspace->strm, wbits)) {  in zlib_decompress()
351 		ret = zlib_inflate(&workspace->strm, Z_NO_FLUSH);  in zlib_decompress()
356 		total_out = workspace->strm.total_out;  in zlib_decompress()
382 		workspace->strm.next_out = workspace->buf;  in zlib_decompress()
383 		workspace->strm.avail_out = PAGE_CACHE_SIZE;  in zlib_decompress()
391 	zlib_inflateEnd(&workspace->strm);  in zlib_decompress()