[libvirt] [PATCH v2 2/5] numa: Introduce virDomainNumaNodeDistanceIsUsingDefaults

The function returns true/false depending on distance configuration being present in the domain XML. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- src/conf/numa_conf.c | 21 +++++++++++++++++++++ src/conf/numa_conf.h | 4 ++++ src/libvirt_private.syms | 1 + 3 files changed, 26 insertions(+) diff --git a/src/conf/numa_conf.c b/src/conf/numa_conf.c index c2f0d1ca8..8fc3b0a19 100644 --- a/src/conf/numa_conf.c +++ b/src/conf/numa_conf.c @@ -1137,6 +1137,27 @@ virDomainNumaSetNodeCount(virDomainNumaPtr numa, size_t nmem_nodes) return numa->nmem_nodes; } + +bool +virDomainNumaNodeDistanceIsUsingDefaults(virDomainNumaPtr numa, + size_t node, + size_t sibling) +{ + if (node >= numa->nmem_nodes || + sibling >= numa->nmem_nodes) + return false; + + if (!numa->mem_nodes[node].distances) + return true; + + if (numa->mem_nodes[node].distances[sibling].value == LOCAL_DISTANCE || + numa->mem_nodes[node].distances[sibling].value == REMOTE_DISTANCE) + return true; + + return false; +} + + size_t virDomainNumaGetNodeDistance(virDomainNumaPtr numa, size_t node, diff --git a/src/conf/numa_conf.h b/src/conf/numa_conf.h index 4655de3aa..7947fdb21 100644 --- a/src/conf/numa_conf.h +++ b/src/conf/numa_conf.h @@ -87,6 +87,10 @@ int virDomainNumatuneMaybeGetNodeset(virDomainNumaPtr numatune, size_t virDomainNumaGetNodeCount(virDomainNumaPtr numa); +bool virDomainNumaNodeDistanceIsUsingDefaults(virDomainNumaPtr numa, + size_t node, + size_t sibling) + ATTRIBUTE_NONNULL(1); size_t virDomainNumaGetNodeDistance(virDomainNumaPtr numa, size_t node, size_t sibling) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index d3ca6b2ec..2fcf0e731 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -726,6 +726,7 @@ virDomainNumaGetNodeDistance; virDomainNumaGetNodeMemoryAccessMode; virDomainNumaGetNodeMemorySize; virDomainNumaNew; +virDomainNumaNodeDistanceIsUsingDefaults; virDomainNumaSetNodeCount; virDomainNumaSetNodeCpumask; virDomainNumaSetNodeDistance; -- 2.13.6