lkml.org 
[lkml]   [2021]   [Jun]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 06/17] mshv: SynIC port and connection hypercalls
From
Date

>> +
>> +int
>> +hv_call_create_port(u64 port_partition_id, union hv_port_id port_id,
>> + u64 connection_partition_id,
>> + struct hv_port_info *port_info,
>> + u8 port_vtl, u8 min_connection_vtl, int node)
>> +{
>> + struct hv_create_port *input;
>> + unsigned long flags;
>> + int ret = 0;
>> + int status;
>> +
>> + do {
>> + local_irq_save(flags);
>> + input = (struct hv_create_port *)(*this_cpu_ptr(
>> + hyperv_pcpu_input_arg));
>> + memset(input, 0, sizeof(*input));
>> +
>> + input->port_partition_id = port_partition_id;
>> + input->port_id = port_id;
>> + input->connection_partition_id = connection_partition_id;
>> + input->port_info = *port_info;
>> + input->port_vtl = port_vtl;
>> + input->min_connection_vtl = min_connection_vtl;
>> + input->proximity_domain_info =
>> + numa_node_to_proximity_domain_info(node);
> This misses the check for NUMA_NO_NODE, so does the function for port
> connection (see below).
>
> I think it would actually be better to leave the check in
> numa_node_to_proximity_domain_info to avoid problems like this.
>
> Of course, adapting this approach means some call sites for that
> function will need to be changed too.
Thanks for catching this and fixing Wei, will roll it into my branch.

~Vineeth


>
> ---8<---
> >From 8705857c62b3e5f13d415736ca8b508c22e3f5ba Mon Sep 17 00:00:00 2001
> From: Wei Liu <wei.liu@kernel.org>
> Date: Wed, 30 Jun 2021 11:08:31 +0000
> Subject: [PATCH] numa_node_to_proximity_domain_info should cope with
> NUMA_NO_NODE
>
> Signed-off-by: Wei Liu <wei.liu@kernel.org>
> ---
> include/asm-generic/mshyperv.h | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h
> index d9b91b8f63c8..44552b7a02ef 100644
> --- a/include/asm-generic/mshyperv.h
> +++ b/include/asm-generic/mshyperv.h
> @@ -31,10 +31,14 @@ numa_node_to_proximity_domain_info(int node)
> {
> union hv_proximity_domain_info proximity_domain_info;
>
> - proximity_domain_info.domain_id = node_to_pxm(node);
> - proximity_domain_info.flags.reserved = 0;
> - proximity_domain_info.flags.proximity_info_valid = 1;
> - proximity_domain_info.flags.proximity_preferred = 1;
> + proximity_domain_info.as_uint64 = 0;
> +
> + if (node != NUMA_NO_NODE) {
> + proximity_domain_info.domain_id = node_to_pxm(node);
> + proximity_domain_info.flags.reserved = 0;
> + proximity_domain_info.flags.proximity_info_valid = 1;
> + proximity_domain_info.flags.proximity_preferred = 1;
> + }
>
> return proximity_domain_info;
> }

\
 
 \ /
  Last update: 2021-06-30 17:03    [W:0.091 / U:2.836 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site