On 08/23/2017 12:18 PM, John Allen wrote:
> Check if an LMB is assigned before attempting to call dlpar_acquire_drc in
> order to avoid any unnecessary rtas calls. This substantially reduces the
> running time of memory hot add on lpars with large amounts of memory.
>
> Signed-off-by: John Allen <jal...@linux.vnet.ibm.com>
> ---
> diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c
> b/arch/powerpc/platforms/pseries/hotplug-memory.c
> index ca9b2f4..95cf2ff 100644
> --- a/arch/powerpc/platforms/pseries/hotplug-memory.c
> +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
> @@ -817,6 +817,9 @@ static int dlpar_memory_add_by_count(u32 lmbs_to_add,
> struct property *prop)
> return -EINVAL;
>
> for (i = 0; i < num_lmbs && lmbs_to_add != lmbs_added; i++) {
> + if (lmbs[i].flags & DRCONF_MEM_ASSIGNED)
> + continue;
> +
Reviewed-by: Nathan Fontenot <nf...@linux.vnet.ibm.com>
> rc = dlpar_acquire_drc(lmbs[i].drc_index);
> if (rc)
> continue;
>
