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virtio-9p: Implement TXATTRWALK

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TXATTRWALK: Descend a ATTR namespace

 size[4] TXATTRWALK tag[2] fid[4] newfid[4] name[s]
 size[4] RXATTRWALK tag[2] size[8]

txattrwalk gets a fid pointing to xattr. This fid can later be
used to get read the xattr value. If name is NULL the fid returned
can be used to get the list of extended attribute associated to
the file system object.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Aneesh Kumar K.V 2010-09-02 11:09:06 +05:30
parent d62dbb51f7
commit fa32ef8879
5 changed files with 231 additions and 2 deletions
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10
hw/virtio-9p-debug.c
View file

@ -579,6 +579,16 @@ void pprint_pdu(V9fsPDU *pdu)
case P9_RWSTAT:
fprintf(llogfile, "RWSTAT: (");
break;
case P9_TXATTRWALK:
fprintf(llogfile, "TXATTRWALK: (");
pprint_int32(pdu, 0, &offset, "fid");
pprint_int32(pdu, 0, &offset, ", newfid");
pprint_str(pdu, 0, &offset, ", xattr name");
break;
case P9_RXATTRWALK:
fprintf(llogfile, "RXATTRWALK: (");
pprint_int64(pdu, 1, &offset, "xattrsize");
break;
default:
fprintf(llogfile, "unknown(%d): (", pdu->id);
break;