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Fix release of resources with lockd plugin

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The lockd plugin for the lock manager was not correctly
handling the release of resource locks. This meant that
during migration, or when pausing a VM, the locks would
not get released. This in turn made it impossible to
resume the domain, or finish migration
This commit is contained in:
Daniel P. Berrange 2013-05-03 12:00:15 +01:00
parent d6670a64e1
commit 8dc93ffadc
1 changed files with 25 additions and 11 deletions
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36
src/locking/lock_driver_lockd.c
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@ -774,10 +774,11 @@ static int virLockManagerLockDaemonRelease(virLockManagerPtr lock,
virNetClientPtr client = NULL;
virNetClientProgramPtr program = NULL;
int counter = 0;
virLockSpaceProtocolReleaseResourceArgs args;
int rv = -1;
size_t i;
virLockManagerLockDaemonPrivatePtr priv = lock->privateData;
memset(&args, 0, sizeof(args));
virCheckFlags(0, -1);
if (state)
*state = NULL;
@ -785,16 +786,29 @@ static int virLockManagerLockDaemonRelease(virLockManagerPtr lock,
if (!(client = virLockManagerLockDaemonConnect(lock, &program, &counter)))
goto cleanup;
args.flags = flags;
for (i = 0 ; i < priv->nresources ; i++) {
virLockSpaceProtocolReleaseResourceArgs args;
if (virNetClientProgramCall(program,
client,
counter++,
VIR_LOCK_SPACE_PROTOCOL_PROC_RELEASE_RESOURCE,
0, NULL, NULL, NULL,
(xdrproc_t)xdr_virLockSpaceProtocolReleaseResourceArgs, &args,
(xdrproc_t)xdr_void, NULL) < 0)
goto cleanup;
memset(&args, 0, sizeof(args));
if (priv->resources[i].lockspace)
args.path = priv->resources[i].lockspace;
args.name = priv->resources[i].name;
args.flags = priv->resources[i].flags;
args.flags &=
~(VIR_LOCK_SPACE_PROTOCOL_ACQUIRE_RESOURCE_SHARED |
VIR_LOCK_SPACE_PROTOCOL_ACQUIRE_RESOURCE_AUTOCREATE);
if (virNetClientProgramCall(program,
client,
counter++,
VIR_LOCK_SPACE_PROTOCOL_PROC_RELEASE_RESOURCE,
0, NULL, NULL, NULL,
(xdrproc_t)xdr_virLockSpaceProtocolReleaseResourceArgs, &args,
(xdrproc_t)xdr_void, NULL) < 0)
goto cleanup;
}
rv = 0;