netdev - Re: [net PATCH] net/smc: make sure EPOLLOUT is raised

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Message-Id: <20190820.122549.1717974409774245848.davem@davemloft.net>
Date:   Tue, 20 Aug 2019 12:25:49 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jbaron@...mai.com
Cc:     netdev@...r.kernel.org, edumazet@...gle.com, ubraun@...ux.ibm.com,
        kgraul@...ux.ibm.com
Subject: Re: [net PATCH] net/smc: make sure EPOLLOUT is raised

From: Jason Baron <jbaron@...mai.com>
Date: Mon, 19 Aug 2019 14:36:01 -0400

> Currently, we are only explicitly setting SOCK_NOSPACE on a write timeout
> for non-blocking sockets. Epoll() edge-trigger mode relies on SOCK_NOSPACE
> being set when -EAGAIN is returned to ensure that EPOLLOUT is raised.
> Expand the setting of SOCK_NOSPACE to non-blocking sockets as well that can
> use SO_SNDTIMEO to adjust their write timeout. This mirrors the behavior
> that Eric Dumazet introduced for tcp sockets.
> 
> Signed-off-by: Jason Baron <jbaron@...mai.com>

Applied and queued up for -stable, thanks Jason.