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Message-Id: <20241102233925.2948-1-hdanton@sina.com>
Date: Sun, 3 Nov 2024 07:39:25 +0800
From: Hillf Danton <hdanton@...a.com>
To: Joe Damato <jdamato@...tly.com>
Cc: netdev@...r.kernel.org,
edumazet@...gle.com,
willy@...radead.org,
Alexander Viro <viro@...iv.linux.org.uk>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v4 5/7] eventpoll: Control irq suspension for prefer_busy_poll
On Sat, 2 Nov 2024 00:52:01 +0000 Martin Karsten <mkarsten@...terloo.ca>
>
> @@ -2005,8 +2032,10 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
> * trying again in search of more luck.
> */
> res = ep_send_events(ep, events, maxevents);
> - if (res)
> + if (res) {
> + ep_suspend_napi_irqs(ep);
Leave napi irq intact in case of -EINTR.
> return res;
> + }
> }
>
> if (timed_out)
> --
> 2.25.1
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