When CONFIG_HAVE_MEMORYLESS_NODES is enabled, cpu_to_node()/numa_node_id() may return a node without memory, and later cause system failure/panic when calling kmalloc_node() and friends with returned node id. So use cpu_to_mem()/numa_mem_id() instead to get the nearest node with memory for the/current cpu. If CONFIG_HAVE_MEMORYLESS_NODES is disabled, cpu_to_mem()/numa_mem_id() is the same as cpu_to_node()/numa_node_id(). Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx> --- drivers/infiniband/hw/qib/qib_file_ops.c | 4 ++-- drivers/infiniband/hw/qib/qib_init.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c index b15e34eeef68..55540295e0e3 100644 --- a/drivers/infiniband/hw/qib/qib_file_ops.c +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -1312,8 +1312,8 @@ static int setup_ctxt(struct qib_pportdata *ppd, int ctxt, assign_ctxt_affinity(fp, dd); numa_id = qib_numa_aware ? ((fd->rec_cpu_num != -1) ? - cpu_to_node(fd->rec_cpu_num) : - numa_node_id()) : dd->assigned_node_id; + cpu_to_mem(fd->rec_cpu_num) : numa_mem_id()) : + dd->assigned_node_id; rcd = qib_create_ctxtdata(ppd, ctxt, numa_id); diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c index 8d3c78ddc906..85ff56ad1075 100644 --- a/drivers/infiniband/hw/qib/qib_init.c +++ b/drivers/infiniband/hw/qib/qib_init.c @@ -133,7 +133,7 @@ int qib_create_ctxts(struct qib_devdata *dd) int local_node_id = pcibus_to_node(dd->pcidev->bus); if (local_node_id < 0) - local_node_id = numa_node_id(); + local_node_id = numa_mem_id(); dd->assigned_node_id = local_node_id; /* -- 1.7.10.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>