On 10/10/2020 4:57 AM, Xianting Tian wrote:
In architecture like powerpc, we can have cpus without any local memory attached to it. In such cases the node does not have real memory. Use local_memory_node(), which is guaranteed to have memory. local_memory_node is a noop in other architectures that does not support memoryless nodes. Signed-off-by: Xianting Tian <tian.xianting@xxxxxxx> --- drivers/infiniband/hw/hfi1/file_ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index 8ca51e43c..79fa22cc7 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -965,7 +965,7 @@ static int allocate_ctxt(struct hfi1_filedata *fd, struct hfi1_devdata *dd, */ fd->rec_cpu_num = hfi1_get_proc_affinity(dd->node); if (fd->rec_cpu_num != -1) - numa = cpu_to_node(fd->rec_cpu_num); + numa = local_memory_node(cpu_to_node(fd->rec_cpu_num)); else numa = numa_node_id(); ret = hfi1_create_ctxtdata(dd->pport, numa, &uctxt);
The hfi1 driver depends on X86_64. I'm not sure what this patch buys, can you expand a bit?
-Denny
