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commit f2edbd79f5d5ce3b633885469852e1215dc0d4b5
Author: Per Bilse <per.bilse@citrix.com>
AuthorDate: Tue Dec 20 13:50:47 2022 +0100
Commit: Jan Beulich <jbeulich@suse.com>
CommitDate: Tue Dec 20 13:50:47 2022 +0100

ioreq_broadcast(): accept partial broadcast success

Avoid incorrectly triggering an error when a broadcast buffered ioreq
is not handled by all registered clients, as long as the failure is
strictly because the client doesn't handle buffered ioreqs.

Signed-off-by: Per Bilse <per.bilse@citrix.com>
Reviewed-by: Paul Durrant <paul@xen.org>
master commit: a44734df6c24fadbdb001f051cc5580c467caf7d
master date: 2022-12-07 12:17:30 +0100
---
xen/common/ioreq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/xen/common/ioreq.c b/xen/common/ioreq.c
index 42414b750b..2a8d8de2d5 100644
--- a/xen/common/ioreq.c
+++ b/xen/common/ioreq.c
@@ -1322,7 +1322,8 @@ unsigned int ioreq_broadcast(ioreq_t *p, bool buffered)

FOR_EACH_IOREQ_SERVER(d, id, s)
{
- if ( !s->enabled )
+ if ( !s->enabled ||
+ (buffered && s->bufioreq_handling == HVM_IOREQSRV_BUFIOREQ_OFF) )
continue;

if ( ioreq_send(s, p, buffered) == IOREQ_STATUS_UNHANDLED )
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.16