[libvirt] [PATCH] Remove all object hashtable caches from virConnectPtr
by Daniel P. Berrange
A followup to, merely rebased to latest GIT
http://www.redhat.com/archives/libvir-list/2010-October/msg01213.html
The virConnectPtr struct will cache instances of all other
objects. APIs like virDomainLookupByUUID will return a
cached object, so if you do virDomainLookupByUUID twice in
a row, you'll get the same exact virDomainPtr instance.
This does not have any performance benefit, since the actual
logic in virDomainLookupByUUID (and other APIs returning
virDomainPtr, etc instances) is not short-circuited. All
it does is to ensure there is only one single virDomainPtr
in existance for any given UUID.
The caching has a number of downsides though, all relating
to stale data. If APIs aren't careful to always overwrite
the 'id' field in virDomainPtr it may become out of data.
Likewise for the name field, if a guest is renamed, or if
a guest is deleted, and then a new one created with the
same UUID but different name.
This has been an ongoing, endless source of bugs for all
applications using libvirt from languages with garbage
collection, causing them to get virDomainPtr instances
from long ago with stale data.
The caching is also a waste of memory resources, since
both applications, and language bindings often maintain
their own hashtable caches of object instances.
This patch removes all the hash table caching, so all
APIs return brand new virDomainPtr (etc) object instances.
* src/datatypes.h: Delete all hash tables.
* src/datatypes.c: Remove all object caching code
---
src/datatypes.c | 648 +++++++++++++------------------------------------------
src/datatypes.h | 10 -
2 files changed, 151 insertions(+), 507 deletions(-)
diff --git a/src/datatypes.c b/src/datatypes.c
index 1b68f6a..0864349 100644
--- a/src/datatypes.c
+++ b/src/datatypes.c
@@ -41,117 +41,6 @@
* *
************************************************************************/
-/**
- * virDomainFreeName:
- * @domain: a domain object
- *
- * Destroy the domain object, this is just used by the domain hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virDomainFreeName(virDomainPtr domain, const char *name ATTRIBUTE_UNUSED)
-{
- return (virUnrefDomain(domain));
-}
-
-/**
- * virNetworkFreeName:
- * @network: a network object
- *
- * Destroy the network object, this is just used by the network hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virNetworkFreeName(virNetworkPtr network, const char *name ATTRIBUTE_UNUSED)
-{
- return (virUnrefNetwork(network));
-}
-
-/**
- * virInterfaceFreeName:
- * @interface: an interface object
- *
- * Destroy the interface object, this is just used by the interface hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virInterfaceFreeName(virInterfacePtr iface, const char *name ATTRIBUTE_UNUSED)
-{
- return (virUnrefInterface(iface));
-}
-
-/**
- * virStoragePoolFreeName:
- * @pool: a pool object
- *
- * Destroy the pool object, this is just used by the pool hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virStoragePoolFreeName(virStoragePoolPtr pool, const char *name ATTRIBUTE_UNUSED)
-{
- return (virUnrefStoragePool(pool));
-}
-
-/**
- * virStorageVolFreeName:
- * @vol: a vol object
- *
- * Destroy the vol object, this is just used by the vol hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virStorageVolFreeName(virStorageVolPtr vol, const char *name ATTRIBUTE_UNUSED)
-{
- return (virUnrefStorageVol(vol));
-}
-
-/**
- * virSecretFreeName:
- * @secret: a secret object
- *
- * Destroy the secret object, this is just used by the secret hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virSecretFreeName(virSecretPtr secret, const char *name ATTRIBUTE_UNUSED)
-{
- return virUnrefSecret(secret);
-}
-
-/**
- * virNWFilterFreeName:
- * @nwfilter: a nwfilter object
- *
- * Destroy the nwfilter object, this is just used by the nwfilter hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virNWFilterFreeName(virNWFilterPtr nwfilter, const char *name ATTRIBUTE_UNUSED)
-{
- return virUnrefNWFilter(nwfilter);
-}
-
-/**
- * virDomainSnapshotFreeName:
- * @snapshot: a domain snapshotobject
- *
- * Destroy the domain snapshot object, this is just used by the domain hash callback.
- *
- * Returns 0 in case of success and -1 in case of failure.
- */
-static int
-virDomainSnapshotFreeName(virDomainSnapshotPtr snapshot, const char *name ATTRIBUTE_UNUSED)
-{
- return (virUnrefDomainSnapshot(snapshot));
-}
/**
* virGetConnect:
@@ -179,45 +68,12 @@ virGetConnect(void) {
ret->privateData = NULL;
ret->networkPrivateData = NULL;
ret->interfacePrivateData = NULL;
- ret->domains = virHashCreate(20);
- if (ret->domains == NULL)
- goto failed;
- ret->networks = virHashCreate(20);
- if (ret->networks == NULL)
- goto failed;
- ret->interfaces = virHashCreate(20);
- if (ret->interfaces == NULL)
- goto failed;
- ret->storagePools = virHashCreate(20);
- if (ret->storagePools == NULL)
- goto failed;
- ret->storageVols = virHashCreate(20);
- if (ret->storageVols == NULL)
- goto failed;
- ret->nodeDevices = virHashCreate(256);
- if (ret->nodeDevices == NULL)
- goto failed;
- ret->secrets = virHashCreate(20);
- if (ret->secrets == NULL)
- goto failed;
- ret->nwfilters = virHashCreate(20);
- if (ret->nwfilters == NULL)
- goto failed;
ret->refs = 1;
return(ret);
failed:
if (ret != NULL) {
- virHashFree(ret->domains, (virHashDeallocator) virDomainFreeName);
- virHashFree(ret->networks, (virHashDeallocator) virNetworkFreeName);
- virHashFree(ret->interfaces, (virHashDeallocator) virInterfaceFreeName);
- virHashFree(ret->storagePools, (virHashDeallocator) virStoragePoolFreeName);
- virHashFree(ret->storageVols, (virHashDeallocator) virStorageVolFreeName);
- virHashFree(ret->nodeDevices, (virHashDeallocator) virNodeDeviceFree);
- virHashFree(ret->secrets, (virHashDeallocator) virSecretFreeName);
- virHashFree(ret->nwfilters, (virHashDeallocator) virNWFilterFreeName);
-
virMutexDestroy(&ret->lock);
VIR_FREE(ret);
}
@@ -259,15 +115,6 @@ virReleaseConnect(virConnectPtr conn) {
virMutexLock(&conn->lock);
- virHashFree(conn->domains, (virHashDeallocator) virDomainFreeName);
- virHashFree(conn->networks, (virHashDeallocator) virNetworkFreeName);
- virHashFree(conn->interfaces, (virHashDeallocator) virInterfaceFreeName);
- virHashFree(conn->storagePools, (virHashDeallocator) virStoragePoolFreeName);
- virHashFree(conn->storageVols, (virHashDeallocator) virStorageVolFreeName);
- virHashFree(conn->nodeDevices, (virHashDeallocator) virNodeDeviceFree);
- virHashFree(conn->secrets, (virHashDeallocator) virSecretFreeName);
- virHashFree(conn->nwfilters, (virHashDeallocator) virNWFilterFreeName);
-
virResetError(&conn->err);
xmlFreeURI(conn->uri);
@@ -341,42 +188,23 @@ virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
virUUIDFormat(uuid, uuidstr);
- ret = (virDomainPtr) virHashLookup(conn->domains, uuidstr);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->magic = VIR_DOMAIN_MAGIC;
- ret->conn = conn;
- ret->id = -1;
- memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
- ret->snapshots = virHashCreate(20);
- if (ret->snapshots == NULL) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to create domain snapshots hash"));
- goto error;
- }
-
- if (virHashAddEntry(conn->domains, uuidstr, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to add domain to connection hash table"));
- goto error;
- }
- conn->refs++;
- DEBUG("New hash entry %p", ret);
- } else {
- DEBUG("Existing hash entry %p: refs now %d", ret, ret->refs+1);
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
}
+ ret->magic = VIR_DOMAIN_MAGIC;
+ ret->conn = conn;
+ ret->id = -1;
+ memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
+
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return(ret);
@@ -409,17 +237,9 @@ virReleaseDomain(virDomainPtr domain) {
virUUIDFormat(domain->uuid, uuidstr);
DEBUG("release domain %p %s %s", domain, domain->name, uuidstr);
- if (virHashRemoveEntry(conn->domains, uuidstr, NULL) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("domain missing from connection hash table"));
- conn = NULL;
- }
-
domain->magic = -1;
domain->id = -1;
VIR_FREE(domain->name);
- virHashFree(domain->snapshots, (virHashDeallocator) virDomainSnapshotFreeName);
VIR_FREE(domain);
if (conn) {
@@ -500,31 +320,22 @@ virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
virUUIDFormat(uuid, uuidstr);
- ret = (virNetworkPtr) virHashLookup(conn->networks, uuidstr);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->magic = VIR_NETWORK_MAGIC;
- ret->conn = conn;
- memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
-
- if (virHashAddEntry(conn->networks, uuidstr, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to add network to connection hash table"));
- goto error;
- }
- conn->refs++;
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
}
+ ret->magic = VIR_NETWORK_MAGIC;
+ ret->conn = conn;
+ memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
+
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return(ret);
@@ -557,13 +368,6 @@ virReleaseNetwork(virNetworkPtr network) {
virUUIDFormat(network->uuid, uuidstr);
DEBUG("release network %p %s %s", network, network->name, uuidstr);
- if (virHashRemoveEntry(conn->networks, uuidstr, NULL) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("network missing from connection hash table"));
- conn = NULL;
- }
-
network->magic = -1;
VIR_FREE(network->name);
VIR_FREE(network);
@@ -647,70 +451,28 @@ virGetInterface(virConnectPtr conn, const char *name, const char *mac) {
virMutexLock(&conn->lock);
- ret = (virInterfacePtr) virHashLookup(conn->interfaces, name);
-
- if (ret != NULL) {
- if (STRCASENEQ(ret->mac, mac)) {
- /*
- * If the mac address has changed, try to modify it in
- * place, which will only work if the new mac is the
- * same length as, or shorter than, the old mac.
- */
- size_t newmaclen = strlen(mac);
- size_t oldmaclen = strlen(ret->mac);
- if (newmaclen <= oldmaclen) {
- strcpy(ret->mac, mac);
- } else {
- /*
- * If it's longer, we're kind of screwed, because we
- * can't add a new hashtable entry (it would clash
- * with the existing entry of same name), and we can't
- * free/re-alloc the existing entry's mac, as some
- * other thread may already be using the existing mac
- * pointer. Fortunately, this should never happen,
- * since the length of the mac address for any
- * interface is determined by the type of the
- * interface, and that is unlikely to change.
- */
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR,
- _("Failed to change interface mac address "
- "from %s to %s due to differing lengths."),
- ret->mac, mac);
- ret = NULL;
- goto error;
- }
- }
- } else {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->mac = strdup(mac);
- if (ret->mac == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->mac = strdup(mac);
+ if (ret->mac == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
- ret->magic = VIR_INTERFACE_MAGIC;
- ret->conn = conn;
+ ret->magic = VIR_INTERFACE_MAGIC;
+ ret->conn = conn;
- if (virHashAddEntry(conn->interfaces, name, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to add interface to connection hash table"));
- goto error;
- }
- conn->refs++;
- }
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return(ret);
@@ -741,15 +503,6 @@ virReleaseInterface(virInterfacePtr iface) {
virConnectPtr conn = iface->conn;
DEBUG("release interface %p %s", iface, iface->name);
- if (virHashRemoveEntry(conn->interfaces, iface->name, NULL) < 0) {
- /* unlock before reporting error because error report grabs lock */
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("interface missing from connection hash table"));
- /* don't decr the conn refct if we weren't connected to it */
- conn = NULL;
- }
-
iface->magic = -1;
VIR_FREE(iface->name);
VIR_FREE(iface->mac);
@@ -836,31 +589,22 @@ virGetStoragePool(virConnectPtr conn, const char *name,
virUUIDFormat(uuid, uuidstr);
- ret = (virStoragePoolPtr) virHashLookup(conn->storagePools, uuidstr);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->magic = VIR_STORAGE_POOL_MAGIC;
- ret->conn = conn;
- memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
-
- if (virHashAddEntry(conn->storagePools, uuidstr, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR,
- "%s", _("failed to add storage pool to connection hash table"));
- goto error;
- }
- conn->refs++;
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
}
+ ret->magic = VIR_STORAGE_POOL_MAGIC;
+ ret->conn = conn;
+ memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
+
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return(ret);
@@ -894,13 +638,6 @@ virReleaseStoragePool(virStoragePoolPtr pool) {
virUUIDFormat(pool->uuid, uuidstr);
DEBUG("release pool %p %s %s", pool, pool->name, uuidstr);
- if (virHashRemoveEntry(conn->storagePools, uuidstr, NULL) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("pool missing from connection hash table"));
- conn = NULL;
- }
-
pool->magic = -1;
VIR_FREE(pool->name);
VIR_FREE(pool);
@@ -984,42 +721,33 @@ virGetStorageVol(virConnectPtr conn, const char *pool, const char *name,
}
virMutexLock(&conn->lock);
- ret = (virStorageVolPtr) virHashLookup(conn->storageVols, key);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->pool = strdup(pool);
- if (ret->pool == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- if (virStrcpyStatic(ret->key, key) == NULL) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR,
- _("Volume key %s too large for destination"), key);
- goto error;
- }
- ret->magic = VIR_STORAGE_VOL_MAGIC;
- ret->conn = conn;
-
- if (virHashAddEntry(conn->storageVols, key, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to add storage vol to connection hash table"));
- goto error;
- }
- conn->refs++;
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->pool = strdup(pool);
+ if (ret->pool == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ if (virStrcpyStatic(ret->key, key) == NULL) {
+ virMutexUnlock(&conn->lock);
+ virLibConnError(VIR_ERR_INTERNAL_ERROR,
+ _("Volume key %s too large for destination"), key);
+ goto error;
}
+ ret->magic = VIR_STORAGE_VOL_MAGIC;
+ ret->conn = conn;
+
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return(ret);
@@ -1051,13 +779,6 @@ virReleaseStorageVol(virStorageVolPtr vol) {
virConnectPtr conn = vol->conn;
DEBUG("release vol %p %s", vol, vol->name);
- if (virHashRemoveEntry(conn->storageVols, vol->key, NULL) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("vol missing from connection hash table"));
- conn = NULL;
- }
-
vol->magic = -1;
VIR_FREE(vol->name);
VIR_FREE(vol->pool);
@@ -1136,30 +857,21 @@ virGetNodeDevice(virConnectPtr conn, const char *name)
}
virMutexLock(&conn->lock);
- ret = (virNodeDevicePtr) virHashLookup(conn->nodeDevices, name);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->magic = VIR_NODE_DEVICE_MAGIC;
- ret->conn = conn;
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
-
- if (virHashAddEntry(conn->nodeDevices, name, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR,
- "%s", _("failed to add node dev to conn hash table"));
- goto error;
- }
- conn->refs++;
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
}
+ ret->magic = VIR_NODE_DEVICE_MAGIC;
+ ret->conn = conn;
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return(ret);
@@ -1190,13 +902,6 @@ virReleaseNodeDevice(virNodeDevicePtr dev) {
virConnectPtr conn = dev->conn;
DEBUG("release dev %p %s", dev, dev->name);
- if (virHashRemoveEntry(conn->nodeDevices, dev->name, NULL) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR,
- "%s", _("dev missing from connection hash table"));
- conn = NULL;
- }
-
dev->magic = -1;
VIR_FREE(dev->name);
VIR_FREE(dev->parent);
@@ -1278,30 +983,21 @@ virGetSecret(virConnectPtr conn, const unsigned char *uuid,
virUUIDFormat(uuid, uuidstr);
- ret = virHashLookup(conn->secrets, uuidstr);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->magic = VIR_SECRET_MAGIC;
- ret->conn = conn;
- memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
- ret->usageType = usageType;
- if (!(ret->usageID = strdup(usageID))) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- if (virHashAddEntry(conn->secrets, uuidstr, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to add secret to conn hash table"));
- goto error;
- }
- conn->refs++;
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->magic = VIR_SECRET_MAGIC;
+ ret->conn = conn;
+ memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
+ ret->usageType = usageType;
+ if (!(ret->usageID = strdup(usageID))) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
}
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return ret;
@@ -1333,13 +1029,6 @@ virReleaseSecret(virSecretPtr secret) {
virUUIDFormat(secret->uuid, uuidstr);
DEBUG("release secret %p %s", secret, uuidstr);
- if (virHashRemoveEntry(conn->secrets, uuidstr, NULL) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("secret missing from connection hash table"));
- conn = NULL;
- }
-
VIR_FREE(secret->usageID);
secret->magic = -1;
VIR_FREE(secret);
@@ -1480,31 +1169,22 @@ virGetNWFilter(virConnectPtr conn, const char *name, const unsigned char *uuid)
virUUIDFormat(uuid, uuidstr);
- ret = (virNWFilterPtr) virHashLookup(conn->nwfilters, uuidstr);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->magic = VIR_NWFILTER_MAGIC;
- ret->conn = conn;
- memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
-
- if (virHashAddEntry(conn->nwfilters, uuidstr, ret) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("failed to add network filter to connection hash table"));
- goto error;
- }
- conn->refs++;
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&conn->lock);
+ virReportOOMError();
+ goto error;
}
+ ret->magic = VIR_NWFILTER_MAGIC;
+ ret->conn = conn;
+ memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
+
+ conn->refs++;
ret->refs++;
virMutexUnlock(&conn->lock);
return(ret);
@@ -1539,13 +1219,6 @@ virReleaseNWFilter(virNWFilterPtr nwfilter)
virUUIDFormat(nwfilter->uuid, uuidstr);
DEBUG("release nwfilter %p %s %s", nwfilter, nwfilter->name, uuidstr);
- if (virHashRemoveEntry(conn->nwfilters, uuidstr, NULL) < 0) {
- virMutexUnlock(&conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("pool missing from connection hash table"));
- conn = NULL;
- }
-
nwfilter->magic = -1;
VIR_FREE(nwfilter->name);
VIR_FREE(nwfilter);
@@ -1565,7 +1238,7 @@ virReleaseNWFilter(virNWFilterPtr nwfilter)
/**
* virUnrefNWFilter:
- * @pool: the nwfilter to unreference
+ * @nwfilter: the nwfilter to unreference
*
* Unreference the networkf itler. If the use count drops to zero, the
* structure is actually freed.
@@ -1583,7 +1256,7 @@ virUnrefNWFilter(virNWFilterPtr nwfilter)
return -1;
}
virMutexLock(&nwfilter->conn->lock);
- DEBUG("unref pool %p %s %d", nwfilter, nwfilter->name, nwfilter->refs);
+ DEBUG("unref nwfilter %p %s %d", nwfilter, nwfilter->name, nwfilter->refs);
nwfilter->refs--;
refs = nwfilter->refs;
if (refs == 0) {
@@ -1612,33 +1285,21 @@ virGetDomainSnapshot(virDomainPtr domain, const char *name)
}
virMutexLock(&domain->conn->lock);
- ret = (virDomainSnapshotPtr) virHashLookup(domain->snapshots, name);
- if (ret == NULL) {
- if (VIR_ALLOC(ret) < 0) {
- virMutexUnlock(&domain->conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->name = strdup(name);
- if (ret->name == NULL) {
- virMutexUnlock(&domain->conn->lock);
- virReportOOMError();
- goto error;
- }
- ret->magic = VIR_SNAPSHOT_MAGIC;
- ret->domain = domain;
-
- if (virHashAddEntry(domain->snapshots, name, ret) < 0) {
- virMutexUnlock(&domain->conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR,
- "%s", _("failed to add snapshot to domain hash table"));
- goto error;
- }
- domain->refs++;
- DEBUG("New hash entry %p", ret);
- } else {
- DEBUG("Existing hash entry %p: refs now %d", ret, ret->refs+1);
+ if (VIR_ALLOC(ret) < 0) {
+ virMutexUnlock(&domain->conn->lock);
+ virReportOOMError();
+ goto error;
+ }
+ ret->name = strdup(name);
+ if (ret->name == NULL) {
+ virMutexUnlock(&domain->conn->lock);
+ virReportOOMError();
+ goto error;
}
+ ret->magic = VIR_SNAPSHOT_MAGIC;
+ ret->domain = domain;
+
+ domain->refs++;
ret->refs++;
virMutexUnlock(&domain->conn->lock);
return(ret);
@@ -1658,13 +1319,6 @@ virReleaseDomainSnapshot(virDomainSnapshotPtr snapshot)
virDomainPtr domain = snapshot->domain;
DEBUG("release snapshot %p %s", snapshot, snapshot->name);
- if (virHashRemoveEntry(domain->snapshots, snapshot->name, NULL) < 0) {
- virMutexUnlock(&domain->conn->lock);
- virLibConnError(VIR_ERR_INTERNAL_ERROR,
- "%s", _("snapshot missing from domain hash table"));
- domain = NULL;
- }
-
snapshot->magic = -1;
VIR_FREE(snapshot->name);
VIR_FREE(snapshot);
diff --git a/src/datatypes.h b/src/datatypes.h
index 38f76a7..ebda992 100644
--- a/src/datatypes.h
+++ b/src/datatypes.h
@@ -24,7 +24,6 @@
# include "internal.h"
-# include "hash.h"
# include "driver.h"
# include "threads.h"
@@ -188,14 +187,6 @@ struct _virConnect {
virErrorFunc handler; /* associated handlet */
void *userData; /* the user data */
- virHashTablePtr domains; /* hash table for known domains */
- virHashTablePtr networks; /* hash table for known domains */
- virHashTablePtr interfaces; /* hash table for known interfaces */
- virHashTablePtr storagePools;/* hash table for known storage pools */
- virHashTablePtr storageVols;/* hash table for known storage vols */
- virHashTablePtr nodeDevices; /* hash table for known node devices */
- virHashTablePtr secrets; /* hash table for known secrets */
- virHashTablePtr nwfilters; /* hash table for known nw filters */
int refs; /* reference count */
};
@@ -211,7 +202,6 @@ struct _virDomain {
char *name; /* the domain external name */
int id; /* the domain ID */
unsigned char uuid[VIR_UUID_BUFLEN]; /* the domain unique identifier */
- virHashTablePtr snapshots; /* hash table for known snapshots */
};
/**
--
1.7.4
13 years, 9 months
[libvirt] [PATCH] check device-mapper when building without storage mpath
by Wen Congyang
When I build libvirt without libvirtd, I receive the following errors:
GEN virsh.1
CCLD virsh
../src/.libs/libvirt.so: undefined reference to `dm_is_dm_major'
collect2: ld returned 1 exit status
make[3]: *** [virsh] Error 1
My build step:
# ./autogen.sh --without-libvirtd
# make dist
# rpmbuild --nodeps --define "_sourcedir `pwd`" --define "_without_libvirtd 1" -ba libvirt.spec
This bug was caused by commit df1011ca.
Signed-off-by: Wen Congyang <wency(a)cn.fujitsu.com>
---
configure.ac | 35 ++++++++++++++++-------------------
1 files changed, 16 insertions(+), 19 deletions(-)
diff --git a/configure.ac b/configure.ac
index 2bb6918..0f81484 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1697,25 +1697,22 @@ if test "$with_storage_mpath" = "check" && test "$with_linux" = "yes"; then
fi
AM_CONDITIONAL([WITH_STORAGE_MPATH], [test "$with_storage_mpath" = "yes"])
-if test "$with_storage_mpath" = "yes"; then
- DEVMAPPER_CFLAGS=
- DEVMAPPER_LIBS=
- PKG_CHECK_MODULES([DEVMAPPER], [devmapper >= $DEVMAPPER_REQUIRED], [], [DEVMAPPER_FOUND=no])
- if test "$DEVMAPPER_FOUND" = "no"; then
- # devmapper is missing pkg-config files in ubuntu, suse, etc
- save_LIBS="$LIBS"
- save_CFLAGS="$CFLAGS"
- DEVMAPPER_FOUND=yes
- AC_CHECK_HEADER([libdevmapper.h],,[DEVMAPPER_FOUND=no])
- AC_CHECK_LIB([devmapper], [dm_task_run],,[DEVMAPPER_FOUND=no])
- DEVMAPPER_LIBS="-ldevmapper"
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
- fi
- if test "$DEVMAPPER_FOUND" = "no" ; then
- AC_MSG_ERROR([You must install device-mapper-devel/libdevmapper >= $DEVMAPPER_REQUIRED to compile libvirt])
- fi
-
+DEVMAPPER_CFLAGS=
+DEVMAPPER_LIBS=
+PKG_CHECK_MODULES([DEVMAPPER], [devmapper >= $DEVMAPPER_REQUIRED], [], [DEVMAPPER_FOUND=no])
+if test "$DEVMAPPER_FOUND" = "no"; then
+ # devmapper is missing pkg-config files in ubuntu, suse, etc
+ save_LIBS="$LIBS"
+ save_CFLAGS="$CFLAGS"
+ DEVMAPPER_FOUND=yes
+ AC_CHECK_HEADER([libdevmapper.h],,[DEVMAPPER_FOUND=no])
+ AC_CHECK_LIB([devmapper], [dm_task_run],,[DEVMAPPER_FOUND=no])
+ DEVMAPPER_LIBS="-ldevmapper"
+ LIBS="$save_LIBS"
+ CFLAGS="$save_CFLAGS"
+fi
+if test "$DEVMAPPER_FOUND" = "no" ; then
+ AC_MSG_ERROR([You must install device-mapper-devel/libdevmapper >= $DEVMAPPER_REQUIRED to compile libvirt])
fi
AC_SUBST([DEVMAPPER_CFLAGS])
AC_SUBST([DEVMAPPER_LIBS])
--
1.7.1
13 years, 9 months
[libvirt] [TCK] [PATCH] follow reordering of match extensions relative to state match
by Stefan Berger
This patch adjusts the tck test cases following the reordering of the
match extensions relative to the state match in libvirt.
Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com>
---
scripts/nwfilter/nwfilterxml2fwallout/comment-test.fwall | 30
+++++++--------
scripts/nwfilter/nwfilterxml2fwallout/example-2.fwall | 14 +++----
2 files changed, 22 insertions(+), 22 deletions(-)
Index: libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/comment-test.fwall
===================================================================
---
libvirt-tck.orig/scripts/nwfilter/nwfilterxml2fwallout/comment-test.fwall
+++ libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/comment-test.fwall
@@ -11,15 +11,15 @@
#iptables -L FI-vnet0 -n
Chain FI-vnet0 (1 references)
target prot opt source destination
-RETURN udp -- 0.0.0.0/0 10.1.2.3 MAC
01:02:03:04:05:06 DSCP match 0x22/* udp rule */ udp spts:291:400
dpts:564:1092 state NEW,ESTABLISHED ctdir REPLY
+RETURN udp -- 0.0.0.0/0 10.1.2.3 MAC
01:02:03:04:05:06 DSCP match 0x22udp spts:291:400 dpts:564:1092 state
NEW,ESTABLISHED ctdir REPLY/* udp rule */
#iptables -L FO-vnet0 -n
Chain FO-vnet0 (1 references)
target prot opt source destination
-ACCEPT udp -- 10.1.2.3 0.0.0.0/0 DSCP match
0x22/* udp rule */ udp spts:564:1092 dpts:291:400 state ESTABLISHED
ctdir ORIGINAL
+ACCEPT udp -- 10.1.2.3 0.0.0.0/0 DSCP match
0x22udp spts:564:1092 dpts:291:400 state ESTABLISHED ctdir ORIGINAL/*
udp rule */
#iptables -L HI-vnet0 -n
Chain HI-vnet0 (1 references)
target prot opt source destination
-RETURN udp -- 0.0.0.0/0 10.1.2.3 MAC
01:02:03:04:05:06 DSCP match 0x22/* udp rule */ udp spts:291:400
dpts:564:1092 state NEW,ESTABLISHED ctdir REPLY
+RETURN udp -- 0.0.0.0/0 10.1.2.3 MAC
01:02:03:04:05:06 DSCP match 0x22udp spts:291:400 dpts:564:1092 state
NEW,ESTABLISHED ctdir REPLY/* udp rule */
#iptables -L libvirt-host-in -n | grep HI-vnet0 | tr -s " "
HI-vnet0 all -- 0.0.0.0/0 0.0.0.0/0 [goto] PHYSDEV match --physdev-in
vnet0
#iptables -L libvirt-in -n | grep FI-vnet0 | tr -s " "
@@ -31,24 +31,24 @@ FO-vnet0 all -- 0.0.0.0/0 0.0.0.0/0 [got
#ip6tables -L FI-vnet0 -n
Chain FI-vnet0 (1 references)
target prot opt source destination
-RETURN tcp ::/0 a:b:c::/128 /*
tcp/ipv6 rule */ tcp spts:256:4369 dpts:32:33 state ESTABLISHED ctdir
ORIGINAL
-RETURN udp ::/0 ::/0 /*
`ls`;${COLUMNS};$(ls);"test";&'3 spaces' */ state ESTABLISHED ctdir
ORIGINAL
-RETURN sctp ::/0 ::/0 /* comment
with lone ', `, ", `, \, $x, and two spaces */ state ESTABLISHED ctdir
ORIGINAL
-RETURN ah ::/0 ::/0 /*
tmp=`mktemp`; echo ${RANDOM} > ${tmp} ; cat < ${tmp}; rm -f ${tmp} */
state ESTABLISHED ctdir ORIGINAL
+RETURN tcp ::/0 a:b:c::/128 tcp
spts:256:4369 dpts:32:33 state ESTABLISHED ctdir ORIGINAL/* tcp/ipv6
rule */
+RETURN udp ::/0 ::/0 state
ESTABLISHED ctdir ORIGINAL/* `ls`;${COLUMNS};$(ls);"test";&'3 spaces' */
+RETURN sctp ::/0 ::/0 state
ESTABLISHED ctdir ORIGINAL/* comment with lone ', `, ", `, \, $x, and
two spaces */
+RETURN ah ::/0 ::/0 state
ESTABLISHED ctdir ORIGINAL/* tmp=`mktemp`; echo ${RANDOM} > ${tmp} ; cat
< ${tmp}; rm -f ${tmp} */
#ip6tables -L FO-vnet0 -n
Chain FO-vnet0 (1 references)
target prot opt source destination
-ACCEPT tcp a:b:c::/128 ::/0 MAC
01:02:03:04:05:06 /* tcp/ipv6 rule */ tcp spts:32:33 dpts:256:4369 state
NEW,ESTABLISHED ctdir REPLY
-ACCEPT udp ::/0 ::/0 /*
`ls`;${COLUMNS};$(ls);"test";&'3 spaces' */ state NEW,ESTABLISHED
ctdir REPLY
-ACCEPT sctp ::/0 ::/0 /* comment
with lone ', `, ", `, \, $x, and two spaces */ state NEW,ESTABLISHED
ctdir REPLY
-ACCEPT ah ::/0 ::/0 /*
tmp=`mktemp`; echo ${RANDOM} > ${tmp} ; cat < ${tmp}; rm -f ${tmp} */
state NEW,ESTABLISHED ctdir REPLY
+ACCEPT tcp a:b:c::/128 ::/0 MAC
01:02:03:04:05:06 tcp spts:32:33 dpts:256:4369 state NEW,ESTABLISHED
ctdir REPLY/* tcp/ipv6 rule */
+ACCEPT udp ::/0 ::/0 state
NEW,ESTABLISHED ctdir REPLY/* `ls`;${COLUMNS};$(ls);"test";&'3 spaces' */
+ACCEPT sctp ::/0 ::/0 state
NEW,ESTABLISHED ctdir REPLY/* comment with lone ', `, ", `, \, $x, and
two spaces */
+ACCEPT ah ::/0 ::/0 state
NEW,ESTABLISHED ctdir REPLY/* tmp=`mktemp`; echo ${RANDOM} > ${tmp} ;
cat < ${tmp}; rm -f ${tmp} */
#ip6tables -L HI-vnet0 -n
Chain HI-vnet0 (1 references)
target prot opt source destination
-RETURN tcp ::/0 a:b:c::/128 /*
tcp/ipv6 rule */ tcp spts:256:4369 dpts:32:33 state ESTABLISHED ctdir
ORIGINAL
-RETURN udp ::/0 ::/0 /*
`ls`;${COLUMNS};$(ls);"test";&'3 spaces' */ state ESTABLISHED ctdir
ORIGINAL
-RETURN sctp ::/0 ::/0 /* comment
with lone ', `, ", `, \, $x, and two spaces */ state ESTABLISHED ctdir
ORIGINAL
-RETURN ah ::/0 ::/0 /*
tmp=`mktemp`; echo ${RANDOM} > ${tmp} ; cat < ${tmp}; rm -f ${tmp} */
state ESTABLISHED ctdir ORIGINAL
+RETURN tcp ::/0 a:b:c::/128 tcp
spts:256:4369 dpts:32:33 state ESTABLISHED ctdir ORIGINAL/* tcp/ipv6
rule */
+RETURN udp ::/0 ::/0 state
ESTABLISHED ctdir ORIGINAL/* `ls`;${COLUMNS};$(ls);"test";&'3 spaces' */
+RETURN sctp ::/0 ::/0 state
ESTABLISHED ctdir ORIGINAL/* comment with lone ', `, ", `, \, $x, and
two spaces */
+RETURN ah ::/0 ::/0 state
ESTABLISHED ctdir ORIGINAL/* tmp=`mktemp`; echo ${RANDOM} > ${tmp} ; cat
< ${tmp}; rm -f ${tmp} */
#ip6tables -L libvirt-host-in -n | grep vnet0 | tr -s " "
HI-vnet0 all ::/0 ::/0 [goto] PHYSDEV match --physdev-in vnet0
#ip6tables -L libvirt-in -n | grep vnet0 | tr -s " "
Index: libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/example-2.fwall
===================================================================
--- libvirt-tck.orig/scripts/nwfilter/nwfilterxml2fwallout/example-2.fwall
+++ libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/example-2.fwall
@@ -1,20 +1,20 @@
#iptables -L FI-vnet0 -n
Chain FI-vnet0 (1 references)
target prot opt source destination
-RETURN all -- 0.0.0.0/0 0.0.0.0/0 /* out:
existing and related (ftp) connections */ state RELATED,ESTABLISHED
-RETURN udp -- 0.0.0.0/0 0.0.0.0/0 /* out:
DNS lookups */ udp dpt:53 state NEW
+RETURN all -- 0.0.0.0/0 0.0.0.0/0 state
RELATED,ESTABLISHED /* out: existing and related (ftp) connections */
+RETURN udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:53
state NEW /* out: DNS lookups */
DROP all -- 0.0.0.0/0 0.0.0.0/0 /* inout:
drop all non-accepted traffic */
#iptables -L FO-vnet0 -n
Chain FO-vnet0 (1 references)
target prot opt source destination
-ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 /* in:
existing connections */ state ESTABLISHED
-ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 /* in: ftp
and ssh */ tcp dpts:21:22 state NEW
-ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 /* in:
icmp */ state NEW
+ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state
ESTABLISHED /* in: existing connections */
+ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
dpts:21:22 state NEW /* in: ftp and ssh */
+ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 state NEW
/* in: icmp */
DROP all -- 0.0.0.0/0 0.0.0.0/0 /* inout:
drop all non-accepted traffic */
#iptables -L HI-vnet0 -n
Chain HI-vnet0 (1 references)
target prot opt source destination
-RETURN all -- 0.0.0.0/0 0.0.0.0/0 /* out:
existing and related (ftp) connections */ state RELATED,ESTABLISHED
-RETURN udp -- 0.0.0.0/0 0.0.0.0/0 /* out:
DNS lookups */ udp dpt:53 state NEW
+RETURN all -- 0.0.0.0/0 0.0.0.0/0 state
RELATED,ESTABLISHED /* out: existing and related (ftp) connections */
+RETURN udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:53
state NEW /* out: DNS lookups */
DROP all -- 0.0.0.0/0 0.0.0.0/0 /* inout:
drop all non-accepted traffic */
13 years, 9 months
[libvirt] [PATCH] maint: avoid 'make syntax-check' from tarball
by Eric Blake
* .gnulib: update to latest gnulib for maint.mk fixes
---
In testing the latest release candidate, I ran 'make syntax-check'
out of habit, and it died miserably (even hanging waiting for
input on stdin). So I fixed maint.mk upstream:
http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/25340
However, we're so close to the release that I don't know if we want
this now, or if we just document that 0.8.8 is the last release where
'make syntax-check' on the tarball is expected to fail.
* .gnulib ecb020f...aa0f5d7 (30):
> maintainer-makefile: make syntax-check a no-op from tarballs
> longlong: tune, particularly for common case of c99
> getloadavg: set errno
> getloadavg: omit unused var
> autoupdate
> doc: update users.txt
> Consistent macro naming for macros that use GCC __attribute__.
> Don't interfere with a program's definition of __attribute__.
> maint: correct a ChangeLog attribution
> update from texinfo
> mbrtowc: Add more tests for native Windows platforms.
> mbrtowc: Work around native Windows bug.
> mbsinit: Work around mingw bug.
> mbsinit: Don't crash for a NULL argument.
> Don't interfere with a program's definition of __attribute__.
> Fix last ChangeLog entry.
> stdlib: don't get in the way of non-GCC __attribute__
> quotearg test: Avoid test failure on mingw.
> setlocale: Prefer gnulib's override over libintl's override.
> stdlib: support non-GCC __attribute__
> wcsrtombs: Work around bug on native Windows.
> mbsrtowcs: Work around bug on native Windows.
> Avoid setlocale bugs in tests.
> Fix ChangeLog entry.
> setlocale: Workaround native Windows bug.
> Remove unused test-setlocale1 argument.
> Tests for module 'setlocale'.
> New module 'setlocale'.
> Prepare for locale dependent tests on mingw.
> Prepare for locale dependent tests on mingw.
.gnulib | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/.gnulib b/.gnulib
index ecb020f..aa0f5d7 160000
--- a/.gnulib
+++ b/.gnulib
@@ -1 +1 @@
-Subproject commit ecb020f2b046790d76d05d377ca1e864e2bc9fdc
+Subproject commit aa0f5d7586efe7044f6ca9e07be3f579ee0d5618
--
1.7.4
13 years, 9 months
[libvirt] [PATCH v3] virsh: freecell --all getting wrong NUMA nodes count
by Michal Privoznik
Virsh freecell --all was not only getting wrong NUMA nodes count, but
even the NUMA nodes IDs. They doesn't have to be continuous, as I've
found out during testing this. Therefore a modification of
nodeGetCellsFreeMemory() error message.
---
Hope it's good this time :)
src/nodeinfo.c | 3 +-
tools/virsh.c | 68 ++++++++++++++++++++++++++++++++++++++++++-------------
2 files changed, 54 insertions(+), 17 deletions(-)
diff --git a/src/nodeinfo.c b/src/nodeinfo.c
index 22d53e5..f4ea36e 100644
--- a/src/nodeinfo.c
+++ b/src/nodeinfo.c
@@ -468,7 +468,8 @@ nodeGetCellsFreeMemory(virConnectPtr conn ATTRIBUTE_UNUSED,
long long mem;
if (numa_node_size64(n, &mem) < 0) {
nodeReportError(VIR_ERR_INTERNAL_ERROR,
- "%s", _("Failed to query NUMA free memory"));
+ _("Failed to query NUMA free memory for node: %d"),
+ n);
goto cleanup;
}
freeMems[numCells++] = mem;
diff --git a/tools/virsh.c b/tools/virsh.c
index 50d5e33..2e7cd72 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -2283,9 +2283,15 @@ cmdFreecell(vshControl *ctl, const vshCmd *cmd)
int ret;
int cell, cell_given;
unsigned long long memory;
- unsigned long long *nodes = NULL;
+ xmlNodePtr *nodes = NULL;
+ unsigned long nodes_cnt;
+ unsigned long *nodes_id = NULL;
+ unsigned long long *nodes_free = NULL;
int all_given;
- virNodeInfo info;
+ int i;
+ char *cap_xml = NULL;
+ xmlDocPtr xml = NULL;
+ xmlXPathContextPtr ctxt = NULL;
if (!vshConnectionUsability(ctl, ctl->conn))
@@ -2301,32 +2307,56 @@ cmdFreecell(vshControl *ctl, const vshCmd *cmd)
}
if (all_given) {
- if (virNodeGetInfo(ctl->conn, &info) < 0) {
- vshError(ctl, "%s", _("failed to get NUMA nodes count"));
+ cap_xml = virConnectGetCapabilities(ctl->conn);
+ if (!cap_xml) {
+ vshError(ctl, "%s", _("unable to get node capabilities"));
goto cleanup;
}
- if (!info.nodes) {
- vshError(ctl, "%s", _("no NUMA nodes present"));
- goto cleanup;
- }
+ xml = xmlReadDoc((const xmlChar *) cap_xml, "node.xml", NULL,
+ XML_PARSE_NOENT | XML_PARSE_NONET |
+ XML_PARSE_NOWARNING);
- if (VIR_ALLOC_N(nodes, info.nodes) < 0) {
- vshError(ctl, "%s", _("could not allocate memory"));
+ if (!xml) {
+ vshError(ctl, "%s", _("unable to get node capabilities"));
goto cleanup;
}
- ret = virNodeGetCellsFreeMemory(ctl->conn, nodes, 0, info.nodes);
- if (ret != info.nodes) {
+ ctxt = xmlXPathNewContext(xml);
+ nodes_cnt = virXPathNodeSet("/capabilities/host/topology/cells/cell",
+ ctxt, &nodes);
+
+ if (nodes_cnt == -1) {
vshError(ctl, "%s", _("could not get information about "
- "all NUMA nodes"));
+ "NUMA topology"));
goto cleanup;
}
+ nodes_free = vshCalloc(ctl, nodes_cnt, sizeof(*nodes_free));
+ nodes_id = vshCalloc(ctl, nodes_cnt, sizeof(*nodes_id));
+
+ for (i = 0; i < nodes_cnt; i++) {
+ unsigned long id;
+ char *val = virXMLPropString(nodes[i], "id");
+ if (virStrToLong_ul(val, NULL, 10, &id)) {
+ vshError(ctl, "%s", _("conversion from string failed"));
+ goto cleanup;
+ }
+ VIR_FREE(val);
+ nodes_id[i]=id;
+ ret = virNodeGetCellsFreeMemory(ctl->conn, &(nodes_free[i]), id, 1);
+ if (ret != 1) {
+ vshError(ctl, _("failed to get free memory for NUMA node "
+ "nuber: %lu"), id);
+ goto cleanup;
+ }
+ }
+
memory = 0;
- for (cell = 0; cell < info.nodes; cell++) {
- vshPrint(ctl, "%5d: %10llu kB\n", cell, (nodes[cell]/1024));
- memory += nodes[cell];
+ for (cell = 0; cell < nodes_cnt; cell++) {
+ vshPrint(ctl, "%5lu: %10llu kB\n", nodes_id[cell],
+ (nodes_free[cell]/1024));
+ memory += nodes_free[cell];
}
vshPrintExtra(ctl, "--------------------\n");
@@ -2351,7 +2381,13 @@ cmdFreecell(vshControl *ctl, const vshCmd *cmd)
func_ret = TRUE;
cleanup:
+ xmlXPathFreeContext(ctxt);
+ if (xml)
+ xmlFreeDoc(xml);
VIR_FREE(nodes);
+ VIR_FREE(nodes_free);
+ VIR_FREE(nodes_id);
+ VIR_FREE(cap_xml);
return func_ret;
}
--
1.7.3.5
13 years, 9 months
[libvirt] Reconfiguring doesn't trigger regeneration of libvirt.syms
by Matthias Bolte
Consider this sequence of commands
$ ./configure
...
$ make
...
GEN libvirt.syms
...
$ ./configure --with-driver-modules
...
$ make
...
libvirt.syms doesn't get regenerated but it should as it should
contain virDriverLoadModule now.
make clean after a configure run doesn't help, as make clean dosen't
remove libvirt.syms.
So either the libvirt.syms rule needs to depend on something that
triggers a regeneration of libvirt.syms after a reconfiguration or
make clean needs to remove libvirt.syms.
I'm not sure about the correct solution here. Any suggestions?
Matthias
13 years, 9 months
[libvirt] [PATCH] build: speed up non-maintainer builds
by Eric Blake
* configure.ac (gl_ASSERT_NO_GNULIB_POSIXCHECK): Use to reduce
time spent in configure.
---
This skips out on the bulk of the 'declared without a macro' checks
during configure time (they are only useful if you are going to
run with CFLAGS=-DGNULIB_POSIXCHECK=1, but that's a maintainer action);
it also results in a smaller config.h (no HAVE_RAW_DECL substitutions).
Worth including in 0.8.8?
configure.ac | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/configure.ac b/configure.ac
index 3cd824a..7172b92 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,6 +9,11 @@ dnl Make automake keep quiet about wildcards & other GNUmake-isms
AM_INIT_AUTOMAKE([-Wno-portability])
AM_MAINTAINER_MODE([enable])
+# Maintainer note - comment this line out if you plan to rerun
+# GNULIB_POSIXCHECK testing to see if libvirt should be using more modules.
+# Leave it uncommented for normal releases, for faster ./configure.
+gl_ASSERT_NO_GNULIB_POSIXCHECK
+
# Use the silent-rules feature when possible.
m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])])
AM_SILENT_RULES([yes])
--
1.7.4
13 years, 9 months
[libvirt] Driver ESX
by Cédric Penas
Hi,
I am currently working on a project where I must develop a function to
clone domain for the driver ESX.
I immediately saw that the function cloneVM_Task () from VMware API was
not supported for standalone ESX.
Does anyone know the best way to still implement this function or a
workaround ?
Why is it not already implemented ?
Thank you in advance,
Cédric
13 years, 9 months
