Re: [libvirt] [PATCH v4] Pin guest to memory node on NUMA system

Version 4: cpuset/mems modification moved to a new funtion and removed duplicate code as per the comments on v3. Version 3: Addressed comments on V2. Version 2: Fixed the string formatting errors in v1. The patch contains the fix for defect 1009880 reported at redhat bugzilla. The root cause is, ever since the subcpusets(vcpu,emulator) were introduced, the parent cpuset cannot be modified to remove the nodes that are in use by the subcpusets. The fix is to break the memory node modification into three steps as to assign new nodes into the parent first. Change the nodes in the child nodes. Then remove the old nodes on the parent node. Signed-off-by: Shivaprasad G Bhat <sbhat(a)linux.vnet.ibm.com&gt; --- src/qemu/qemu_driver.c | 102 +++++++++++++++++++++++++++++++++++++----------- 1 file changed, 79 insertions(+), 23 deletions(-)