[Xen-changelog] [xen master] libxl: bail from placement on non-NUMA boxes

[patchbot@xxxxxxx]

commit 7a7776a916a4d117c72ecf417a623fa20a505b90
Author:     Dario Faggioli <dario.faggioli@xxxxxxxxxx>
AuthorDate: Wed Apr 30 17:44:13 2014 +0200
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Fri May 2 13:34:35 2014 +0100

    libxl: bail from placement on non-NUMA boxes
    
    If there only is 1 NUMA node, no need to go through placement
    candidate selection, etc., we can just bail.
    
    Signed-off-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
    Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 tools/libxl/libxl_numa.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/tools/libxl/libxl_numa.c b/tools/libxl/libxl_numa.c
index 4fac664..94ca4fe 100644
--- a/tools/libxl/libxl_numa.c
+++ b/tools/libxl/libxl_numa.c
@@ -308,6 +308,11 @@ int libxl__get_numa_candidate(libxl__gc *gc,
     if (ninfo == NULL)
         return ERROR_FAIL;
 
+    if (nr_nodes <= 1) {
+        *cndt_found = 0;
+        goto out;
+    }
+
     GCNEW_ARRAY(vcpus_on_node, nr_nodes);
 
     /*
--
generated by git-patchbot for /home/xen/git/xen.git#master

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