41  * Input and output buffers. The input buffer is used as a temporary safe
48  * Structure to pass the input and output buffers to the XZ decoder.
51 static struct xz_buf buffers = {  variable
74 	buffers.in_pos = 0;  in xz_dec_test_open()
75 	buffers.in_size = 0;  in xz_dec_test_open()
76 	buffers.out_pos = 0;  in xz_dec_test_open()
119 	while ((remaining > 0 || buffers.out_pos == buffers.out_size)  in xz_dec_test_write()
121 		if (buffers.in_pos == buffers.in_size) {  in xz_dec_test_write()
122 			buffers.in_pos = 0;  in xz_dec_test_write()
123 			buffers.in_size = min(remaining, sizeof(buffer_in));  in xz_dec_test_write()
124 			if (copy_from_user(buffer_in, buf, buffers.in_size))  in xz_dec_test_write()
127 			buf += buffers.in_size;  in xz_dec_test_write()
128 			remaining -= buffers.in_size;  in xz_dec_test_write()
131 		buffers.out_pos = 0;  in xz_dec_test_write()
132 		ret = xz_dec_run(state, &buffers);  in xz_dec_test_write()
133 		crc = crc32(crc, buffer_out, buffers.out_pos);  in xz_dec_test_write()
144 		return size - remaining - (buffers.in_size - buffers.in_pos);  in xz_dec_test_write()