From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: famz@redhat.com
Subject: [Qemu-devel] [PATCH] scsi: always call notifier on async cancellation
Date: Wed, 16 Dec 2015 19:33:44 +0100 [thread overview]
Message-ID: <1450290827-30508-2-git-send-email-pbonzini@redhat.com> (raw)
This was found by code inspection. If the request is cancelled twice,
the notifier is never called on the second cancellation request,
and hence for example a TMF might never finish.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/scsi/scsi-bus.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index 524a998..4c121fe 100644
--- a/hw/scsi/scsi-bus.c
+++ b/hw/scsi/scsi-bus.c
@@ -1759,9 +1759,6 @@ void scsi_req_cancel_async(SCSIRequest *req, Notifier *notifier)
if (notifier) {
notifier_list_add(&req->cancel_notifiers, notifier);
}
- if (req->io_canceled) {
- return;
- }
scsi_req_ref(req);
scsi_req_dequeue(req);
req->io_canceled = true;
--
2.5.0
next reply other threads:[~2015-12-16 18:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-16 18:33 Paolo Bonzini [this message]
2015-12-17 1:15 ` [Qemu-devel] [PATCH] scsi: always call notifier on async cancellation Fam Zheng
2015-12-17 8:41 ` Paolo Bonzini
2015-12-17 12:22 ` Fam Zheng
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