On 13.05.2021 17:46, Stefano Garzarella wrote:

On Thu, May 13, 2021 at 04:01:50PM +0200, Stefano Garzarella wrote:

quoted

On Sat, May 08, 2021 at 07:37:35PM +0300, Arseny Krasnov wrote:

quoted

This add logic, that serializes write access to single socket
by multiple threads. It is implemented be adding field with TID
of current writer. When writer tries to send something, it checks
that field is -1(free), else it sleep in the same way as waiting
for free space at peers' side.

Signed-off-by: Arseny Krasnov <redacted>
---
include/net/af_vsock.h   |  1 +
net/vmw_vsock/af_vsock.c | 10 +++++++++-
2 files changed, 10 insertions(+), 1 deletion(-)

I think you forgot to move this patch at the beginning of the series.
It's important because in this way we can backport to stable branches 
easily.

About the implementation, can't we just add a mutex that we hold until 
we have sent all the payload?

Re-thinking, I guess we can't because we have the timeout to deal 
with...

Yes, i forgot about why i've implemented it using 'tid_owner' :)

quoted

I need to check other implementations like TCP.

Thanks,
Stefano