Re: [Xen-devel] [PATCH] pvcalls-back: do not return error on inet_accept EAGAIN

[Juergen Gross <jgross@xxxxxxxx>]

On 03/02/18 02:34, Stefano Stabellini wrote:
> When the client sends a regular blocking accept request, the backend is
> expected to return only when the accept is completed, simulating a
> blocking behavior, or return an error.
> 
> Specifically, on EAGAIN from inet_accept, the backend shouldn't return
> "EAGAIN" to the client. Instead, it should simply continue the wait.
> Otherwise, the client will send another accept request, which will cause
> another EAGAIN to be sent back, which is a waste of resources and not
> conforming to the expected behavior. Change the behavior by turning the
> "goto error" into a return.
> 
> Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>

Committed to xen.tip for-linus-4.16


Juergen

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