On Mon, Oct 12, 2020 at 08:36:57AM -0400, Dennis Dalessandro wrote: > 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 > > +++ 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? Yikes, that is strongly discouraged. Jason
