+ while ((len = qword_get(&mesg, buf, PAGE_SIZE)) > 0) {
+ if (strcmp(buf, "fsloc") == 0)
+ err = fsloc_parse(&mesg, buf, &exp.ex_fslocs);
+ else if (strcmp(buf, "uuid") == 0) {
+ /* expect a 16 byte uuid encoded as \xXXXX... */
+ len = qword_get(&mesg, buf, PAGE_SIZE);
+ if (len != 16)
+ err = -EINVAL;
+ else {
+ exp.ex_uuid =
+ kmemdup(buf, 16, GFP_KERNEL);
+ if (exp.ex_uuid == NULL)
+ err = -ENOMEM;
+ }
+ } else
+ /* quietly ignore unknown words and anything
+ * following. Newer user-space can try to set
+ * new values, then see what the result was.
+ */
+ break;
+ if (err)
+ goto out;
+ }