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scsi: Introduce scsi_req_cancel_complete

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Let the aio cb do the clean up and notification job after scsi_req_cancel, in
preparation for asynchronous cancellation.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Fam Zheng 2014-09-25 10:20:47 +08:00 • committed by Paolo Bonzini
parent a83cfd12d9
commit d5776465ee
4 changed files with 20 additions and 4 deletions
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14
hw/scsi/scsi-bus.c
View file

@ -1718,6 +1718,16 @@ void scsi_req_complete(SCSIRequest *req, int status)
scsi_req_unref(req);
}
/* Called by the devices when the request is canceled. */
void scsi_req_cancel_complete(SCSIRequest *req)
{
assert(req->io_canceled);
if (req->bus->info->cancel) {
req->bus->info->cancel(req);
}
scsi_req_unref(req);
}
void scsi_req_cancel(SCSIRequest *req)
{
trace_scsi_req_cancel(req->dev->id, req->lun, req->tag);
@ -1730,10 +1740,6 @@ void scsi_req_cancel(SCSIRequest *req)
if (req->aiocb) {
bdrv_aio_cancel(req->aiocb);
}
if (req->bus->info->cancel) {
req->bus->info->cancel(req);
}
scsi_req_unref(req);
}
static int scsi_ua_precedence(SCSISense sense)