From: David Vrabel <david.vrabel@citrix.com>
To: xen-devel@lists.xen.org
Cc: Wei Liu <wei.liu2@citrix.com>, Keir Fraser <keir@xen.org>,
David Vrabel <david.vrabel@citrix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: [PATCH 04/12] xen/events: introduce test_and_set_mask
Date: Tue, 19 Mar 2013 21:04:51 +0000 [thread overview]
Message-ID: <1363727099-25519-5-git-send-email-david.vrabel@citrix.com> (raw)
In-Reply-To: <1363727099-25519-1-git-send-email-david.vrabel@citrix.com>
From: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
drivers/xen/events.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 0d5c210..88d91d7 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -351,6 +351,12 @@ static inline int test_evtchn(int port)
return sync_test_bit(port, BM(&s->evtchn_pending[0]));
}
+static inline int test_and_set_mask(int port)
+{
+ struct shared_info *s = HYPERVISOR_shared_info;
+ return sync_test_and_set_bit(port, BM(&s->evtchn_mask[0]));
+}
+
/**
* notify_remote_via_irq - send event to remote end of event channel via irq
@@ -1488,7 +1494,7 @@ static int retrigger_evtchn(int evtchn)
if (!VALID_EVTCHN(evtchn))
return 0;
- masked = sync_test_and_set_bit(evtchn, BM(s->evtchn_mask));
+ masked = test_and_set_mask(evtchn);
sync_set_bit(evtchn, BM(s->evtchn_pending));
if (!masked)
unmask_evtchn(evtchn);
--
1.7.2.5
next prev parent reply other threads:[~2013-03-19 21:04 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-19 21:04 [PATCH RFC 0/12] Linux: FIFO-based event channel ABI David Vrabel
2013-03-19 21:04 ` [PATCH 01/12] xen/events: avoid race with raising an event in unmask_evtchn() David Vrabel
2013-03-19 21:04 ` [PATCH 02/12] xen/events: refactor retrigger_dynirq() and resend_irq_on_evtchn() David Vrabel
2013-03-20 11:06 ` Jan Beulich
2013-03-19 21:04 ` [PATCH 03/12] xen/events: remove unnecessary init_evtchn_cpu_bindings() David Vrabel
2013-03-20 11:09 ` Jan Beulich
2013-03-20 13:20 ` David Vrabel
2013-03-20 13:40 ` Jan Beulich
2013-03-19 21:04 ` David Vrabel [this message]
2013-03-19 21:04 ` [PATCH 05/12] xen/events: replace raw bit ops with functions David Vrabel
2013-03-19 21:04 ` [PATCH 06/12] xen/events: move drivers/xen/events.c into drivers/xen/events/ David Vrabel
2013-03-19 21:04 ` [PATCH 07/12] xen/events: move 2-level specific code into its own file David Vrabel
2013-03-19 21:04 ` [PATCH 08/12] xen/events: add struct evtchn_ops for the low-level port operations David Vrabel
2013-03-20 11:12 ` Jan Beulich
2013-03-19 21:04 ` [PATCH 09/12] xen/events: allow setup of irq_info to fail David Vrabel
2013-03-19 21:04 ` [PATCH 10/12] xen/events: add a evtchn_op for port setup David Vrabel
2013-03-19 21:04 ` [PATCH 11/12] xen/events: Add the hypervisor interface for the FIFO-based event channels David Vrabel
2013-03-20 14:03 ` Wei Liu
2013-03-20 14:18 ` David Vrabel
2013-03-20 14:36 ` Wei Liu
2013-03-19 21:04 ` [PATCH 12/12] xen/events: use the FIFO-based ABI if available David Vrabel
2013-03-20 9:38 ` Roger Pau Monné
[not found] ` <1363727099-25519-2-git-send-email-david.vrabel@citrix.com>
2013-03-20 11:00 ` [PATCH 01/12] xen/events: avoid race with raising an event in unmask_evtchn() Stefano Stabellini
[not found] ` <alpine.DEB.2.02.1303201052280.17662@kaball.uk.xensource.com>
2013-03-20 12:20 ` David Vrabel
2013-03-20 12:21 ` Stefano Stabellini
2013-05-06 19:51 ` [PATCH RFC 0/12] Linux: FIFO-based event channel ABI Konrad Rzeszutek Wilk
2013-05-07 12:26 ` David Vrabel
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