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| author | M. Mohan Kumar <mohan@in.ibm.com> | 2010-09-08 02:36:52 +0530 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-10-20 12:10:58 -0500 |
| commit | 8f35400358488ffa1147e9eab9e2c9cf0efd5e4e (patch) | |
| tree | e605718005a05b35d5b215b882b1d0931156593c /hw/virtio-9p-debug.c | |
| parent | 82cc3ee88ba238ec3ba96f4673d8a184588b82a4 (diff) | |
| download | qemu-8f35400358488ffa1147e9eab9e2c9cf0efd5e4e.tar.gz | |
qemu-virtio9p: Implement TGETLOCK
Synopsis
size[4] TGetlock tag[2] fid[4] getlock[n]
size[4] RGetlock tag[2] getlock[n]
Description
TGetlock is used to test for the existence of byte range posix locks on
a file identified by given fid. The reply contains getlock structure. If
the lock could be placed it returns F_UNLCK in type field of getlock structure.
Otherwise it returns the details of the conflicting locks in the getlock
structure
getlock structure:
type[1] - Type of lock: F_RDLCK, F_WRLCK
start[8] - Starting offset for lock
length[8] - Number of bytes to lock
If length is 0, lock all bytes starting at the location
'start' through to the end of file
proc_id[4] - process id that wants to take lock/owns the task
in case of reply
client[4] - Client id of the system that owns the process
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Diffstat (limited to 'hw/virtio-9p-debug.c')
| -rw-r--r-- | hw/virtio-9p-debug.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/hw/virtio-9p-debug.c b/hw/virtio-9p-debug.c index 045774f7ef..85c9900672 100644 --- a/hw/virtio-9p-debug.c +++ b/hw/virtio-9p-debug.c @@ -602,6 +602,23 @@ void pprint_pdu(V9fsPDU *pdu) fprintf(llogfile, "RLOCK: ("); pprint_int8(pdu, 0, &offset, "status"); break; + case P9_TGETLOCK: + fprintf(llogfile, "TGETLOCK: ("); + pprint_int32(pdu, 0, &offset, "fid"); + pprint_int8(pdu, 0, &offset, ", type"); + pprint_int64(pdu, 0, &offset, ", start"); + pprint_int64(pdu, 0, &offset, ", length"); + pprint_int32(pdu, 0, &offset, ", proc_id"); + pprint_str(pdu, 0, &offset, ", client_id"); + break; + case P9_RGETLOCK: + fprintf(llogfile, "RGETLOCK: ("); + pprint_int8(pdu, 0, &offset, "type"); + pprint_int64(pdu, 0, &offset, ", start"); + pprint_int64(pdu, 0, &offset, ", length"); + pprint_int32(pdu, 0, &offset, ", proc_id"); + pprint_str(pdu, 0, &offset, ", client_id"); + break; default: fprintf(llogfile, "unknown(%d): (", pdu->id); break; |