From: Wei Liu <wei.liu2@citrix.com>
To: xen-devel@lists.xen.org
Cc: Wei Liu <wei.liu2@citrix.com>,
david.vrabel@citrix.com, jbeulich@suse.com,
ian.campbell@citrix.com
Subject: [RFC PATCH V5 02/15] evtchn: reset bucket if xsm_alloc_security_evtchn fails
Date: Tue, 19 Mar 2013 15:15:27 +0000 [thread overview]
Message-ID: <1363706140-26989-3-git-send-email-wei.liu2@citrix.com> (raw)
In-Reply-To: <1363706140-26989-1-git-send-email-wei.liu2@citrix.com>
If xsm_alloc_security_evtchn fails, the evtchn bucket will be freed. We also
need to reset pointer in bucket array to NULL.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
xen/common/event_channel.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/xen/common/event_channel.c b/xen/common/event_channel.c
index dabfa9e..1b702d5 100644
--- a/xen/common/event_channel.c
+++ b/xen/common/event_channel.c
@@ -149,6 +149,7 @@ static int get_free_port(struct domain *d)
for ( j = 0; j < i; j++ )
xsm_free_security_evtchn(&chn[j]);
xfree(chn);
+ bucket_from_port(d, port) = NULL;
return -ENOMEM;
}
}
--
1.7.10.4
next prev parent reply other threads:[~2013-03-19 15:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-19 15:15 [RFC PATCH V5 00/15] Implement 3-level event channel ABI in Xen Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 01/15] Clean up trailing whitespaces Wei Liu
2013-03-19 15:15 ` Wei Liu [this message]
2013-03-19 15:15 ` [RFC PATCH V5 03/15] evtchn: alter internal object handling scheme Wei Liu
2013-03-20 9:22 ` Jan Beulich
2013-03-19 15:15 ` [RFC PATCH V5 04/15] evtchn: generalize event channel operations Wei Liu
2013-03-20 9:31 ` Jan Beulich
2013-03-19 15:15 ` [RFC PATCH V5 05/15] evtchn: add d->max_evtchns Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 06/15] evtchn: implement extended event channel ABIs query Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 07/15] evtchn: define 3-level event channel registration interface Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 08/15] evtchn: add evtchn_extended in struct domain Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 09/15] evtchn: calculate max event channels for EVTCHN_EXTENDED_L3 Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 10/15] evtchn: update Xen public header xen.h Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 11/15] evtchn: use pointers to reference evtchn_pending/mask Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 12/15] evtchn: introduce EVTCHN_WORD_BITORDER macro Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 13/15] evtchn: infrastructure to manipulate 3-level event channel pages Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 14/15] evtchn: implement 3-level event channel routines Wei Liu
2013-03-19 15:15 ` [RFC PATCH V5 15/15] evtchn: only allow 3-level event channel on Dom0 Wei Liu
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