36 static z_stream inf_strm, def_strm;  variable
45 	def_strm.workspace = vmalloc(zlib_deflate_workspacesize(MAX_WBITS,  in alloc_workspaces()
47 	if (!def_strm.workspace)  in alloc_workspaces()
54 		vfree(def_strm.workspace);  in alloc_workspaces()
64 	vfree(def_strm.workspace);  in free_workspaces()
83 	if (Z_OK != zlib_deflateInit(&def_strm, 3)) {  in jffs2_zlib_compress()
89 	def_strm.next_in = data_in;  in jffs2_zlib_compress()
90 	def_strm.total_in = 0;  in jffs2_zlib_compress()
92 	def_strm.next_out = cpage_out;  in jffs2_zlib_compress()
93 	def_strm.total_out = 0;  in jffs2_zlib_compress()
95 	while (def_strm.total_out < *dstlen - STREAM_END_SPACE && def_strm.total_in < *sourcelen) {  in jffs2_zlib_compress()
96 		def_strm.avail_out = *dstlen - (def_strm.total_out + STREAM_END_SPACE);  in jffs2_zlib_compress()
97 		def_strm.avail_in = min_t(unsigned long,  in jffs2_zlib_compress()
98 			(*sourcelen-def_strm.total_in), def_strm.avail_out);  in jffs2_zlib_compress()
100 			  def_strm.avail_in, def_strm.avail_out);  in jffs2_zlib_compress()
101 		ret = zlib_deflate(&def_strm, Z_PARTIAL_FLUSH);  in jffs2_zlib_compress()
103 			  def_strm.avail_in, def_strm.avail_out,  in jffs2_zlib_compress()
104 			  def_strm.total_in, def_strm.total_out);  in jffs2_zlib_compress()
107 			zlib_deflateEnd(&def_strm);  in jffs2_zlib_compress()
112 	def_strm.avail_out += STREAM_END_SPACE;  in jffs2_zlib_compress()
113 	def_strm.avail_in = 0;  in jffs2_zlib_compress()
114 	ret = zlib_deflate(&def_strm, Z_FINISH);  in jffs2_zlib_compress()
115 	zlib_deflateEnd(&def_strm);  in jffs2_zlib_compress()
123 	if (def_strm.total_out >= def_strm.total_in) {  in jffs2_zlib_compress()
125 			  def_strm.total_in, def_strm.total_out);  in jffs2_zlib_compress()
131 		  def_strm.total_in, def_strm.total_out);  in jffs2_zlib_compress()
133 	*dstlen = def_strm.total_out;  in jffs2_zlib_compress()
134 	*sourcelen = def_strm.total_in;  in jffs2_zlib_compress()