lkml.org 
[lkml]   [2022]   [Dec]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [RFC PATCH v2 3/6] vsock/vmci: always return ENOMEM in case of error
Date


> On Dec 1, 2022, at 1:30 AM, Stefano Garzarella <sgarzare@redhat.com> wrote:
>
> !! External Email
>
> On Fri, Nov 25, 2022 at 05:08:06PM +0000, Arseniy Krasnov wrote:
>> From: Bobby Eshleman <bobby.eshleman@bytedance.com>
>>
>> This saves original behaviour from af_vsock.c - switch any error
>> code returned from transport layer to ENOMEM.
>>
>> Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com>
>> Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
>> ---
>> net/vmw_vsock/vmci_transport.c | 9 ++++++++-
>> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> @Bryan @Vishnu what do you think about this patch?
>
> A bit of context:
>
> Before this series, the af_vsock core always returned ENOMEM to the user
> if the transport failed to queue the packet.
>
> Now we are changing it by returning the transport error. So I think here
> we want to preserve the previous behavior for vmci, but I don't know if
> that's the right thing.
>

Agree with Stefano. I don't think we need to preserve the previous
behavior for vmci.

>
> @Arseniy please in the next versions describe better in the commit
> messages the reasons for these changes, so it is easier review for
> others and also in the future by reading the commit message we can
> understand the reason for the change.
>
> Thanks,
> Stefano
>
>>
>> diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
>> index 842c94286d31..289a36a203a2 100644
>> --- a/net/vmw_vsock/vmci_transport.c
>> +++ b/net/vmw_vsock/vmci_transport.c
>> @@ -1838,7 +1838,14 @@ static ssize_t vmci_transport_stream_enqueue(
>> struct msghdr *msg,
>> size_t len)
>> {
>> - return vmci_qpair_enquev(vmci_trans(vsk)->qpair, msg, len, 0);
>> + int err;
>> +
>> + err = vmci_qpair_enquev(vmci_trans(vsk)->qpair, msg, len, 0);
>> +
>> + if (err < 0)
>> + err = -ENOMEM;
>> +
>> + return err;
>> }
>>
>> static s64 vmci_transport_stream_has_data(struct vsock_sock *vsk)
>> --
>> 2.25.1
>
>
> !! External Email: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender.

\
 
 \ /
  Last update: 2022-12-01 16:15    [W:0.208 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site