Lines Matching refs:zstream
248 struct z_stream_s zstream; member
254 struct z_stream_s *zstream = &c->zstream; in compress_init() local
259 zstream->workspace = in compress_init()
262 if (!zstream->workspace) { in compress_init()
276 struct z_stream_s *zstream = &c->zstream; in compress_start() local
277 void *workspace = zstream->workspace; in compress_start()
279 memset(zstream, 0, sizeof(*zstream)); in compress_start()
280 zstream->workspace = workspace; in compress_start()
282 return zlib_deflateInit(zstream, Z_DEFAULT_COMPRESSION) == Z_OK; in compress_start()
305 struct z_stream_s *zstream = &c->zstream; in compress_page() local
307 zstream->next_in = src; in compress_page()
309 zstream->next_in = c->tmp; in compress_page()
310 zstream->avail_in = PAGE_SIZE; in compress_page()
313 if (zstream->avail_out == 0) { in compress_page()
314 zstream->next_out = compress_next_page(c, dst); in compress_page()
315 if (IS_ERR(zstream->next_out)) in compress_page()
316 return PTR_ERR(zstream->next_out); in compress_page()
318 zstream->avail_out = PAGE_SIZE; in compress_page()
321 if (zlib_deflate(zstream, Z_NO_FLUSH) != Z_OK) in compress_page()
325 } while (zstream->avail_in); in compress_page()
328 if (0 && zstream->total_out > zstream->total_in) in compress_page()
337 struct z_stream_s *zstream = &c->zstream; in compress_flush() local
340 switch (zlib_deflate(zstream, Z_FINISH)) { in compress_flush()
342 zstream->next_out = compress_next_page(c, dst); in compress_flush()
343 if (IS_ERR(zstream->next_out)) in compress_flush()
344 return PTR_ERR(zstream->next_out); in compress_flush()
346 zstream->avail_out = PAGE_SIZE; in compress_flush()
358 memset(zstream->next_out, 0, zstream->avail_out); in compress_flush()
359 dst->unused = zstream->avail_out; in compress_flush()
365 zlib_deflateEnd(&c->zstream); in compress_finish()
370 kfree(c->zstream.workspace); in compress_fini()