static void v9fs_readdir(void *opaque) { int32_t fid; V9fsFidState *fidp; ssize_t retval = 0; size_t offset = 7; uint64_t initial_offset; int32_t count; uint32_t max_count; V9fsPDU *pdu = opaque; V9fsState *s = pdu->s; pdu_unmarshal(pdu, offset, "dqd", &fid, &initial_offset, &max_count); trace_v9fs_readdir(pdu->tag, pdu->id, fid, initial_offset, max_count); fidp = get_fid(pdu, fid); if (fidp == NULL) { retval = -EINVAL; goto out_nofid; } if (!fidp->fs.dir) { retval = -EINVAL; goto out; } if (initial_offset == 0) { v9fs_co_rewinddir(pdu, fidp); } else { v9fs_co_seekdir(pdu, fidp, initial_offset); } count = v9fs_do_readdir(pdu, fidp, max_count); if (count < 0) { retval = count; goto out; } retval = offset; retval += pdu_marshal(pdu, offset, "d", count); retval += count; trace_v9fs_readdir_return(pdu->tag, pdu->id, count, retval); out: put_fid(pdu, fidp); out_nofid: complete_pdu(s, pdu, retval); }