From: Jan Beulich <jbeulich@suse.com>
To: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: [PATCH 4/5] xen/events: unmask a fifo event channel only if it was masked
Date: Thu, 22 Oct 2020 09:55:58 +0200 [thread overview]
Message-ID: <e6dcce7e-acfb-0ca1-8ff1-e303932bc3c5@suse.com> (raw)
In-Reply-To: <20201022074214.21693-5-jgross@suse.com>
On 22.10.2020 09:42, Juergen Gross wrote:
> --- a/drivers/xen/events/events_fifo.c
> +++ b/drivers/xen/events/events_fifo.c
> @@ -236,6 +236,9 @@ static bool clear_masked_cond(volatile event_word_t *word)
>
> w = *word;
>
> + if (!(w & (1 << EVTCHN_FIFO_MASKED)))
> + return true;
Maybe better move this ...
> do {
> if (w & (1 << EVTCHN_FIFO_PENDING))
> return false;
>
... into the loop, above this check?
Jan
next prev parent reply other threads:[~2020-10-22 7:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-22 7:42 [PATCH 0/5] xen: event handling cleanup Juergen Gross
2020-10-22 7:42 ` [PATCH 1/5] xen: remove no longer used functions Juergen Gross
2020-10-22 7:42 ` [PATCH 2/5] xen/events: make struct irq_info private to events_base.c Juergen Gross
2020-10-22 7:42 ` [PATCH 3/5] xen/events: only register debug interrupt for 2-level events Juergen Gross
2020-10-22 7:54 ` Jan Beulich
2020-10-22 8:28 ` Jürgen Groß
2020-10-22 7:42 ` [PATCH 4/5] xen/events: unmask a fifo event channel only if it was masked Juergen Gross
2020-10-22 7:55 ` Jan Beulich [this message]
2020-10-22 8:28 ` Jürgen Groß
2020-10-22 7:42 ` [PATCH 5/5] Documentation: add xen.fifo_events kernel parameter description Juergen Gross
2020-10-22 8:01 ` [PATCH 0/5] xen: event handling cleanup Jan Beulich
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