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authorPaolo Bonzini <pbonzini@redhat.com>2015-12-16 19:33:44 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2015-12-17 17:33:49 +0100
commit36896bffd1330e09ee615f8c19d9e07520320a02 (patch)
treea7c5ff8299ee071de7226594cc4804e1f8056970
parent8aad35f678799e9ddf11201a619aefb7c0f18dec (diff)
scsi: always call notifier on async cancellation
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. All the calls in scsi_req_cancel_async are idempotent, so the change is safe. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1450290827-30508-2-git-send-email-pbonzini@redhat.com>
-rw-r--r--hw/scsi/scsi-bus.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index a6000745bd..00bddc9270 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;