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block: explicitly acquire aiocontext in callbacks that need it

Browse source 
This covers both file descriptor callbacks and polling callbacks,
since they execute related code.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170213135235.12274-14-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-02-13 14:52:30 +01:00 • committed by Stefan Hajnoczi
parent 2f47da5f7f
commit 9d45665448
11 changed files with 68 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

7
hw/scsi/virtio-scsi.c
View file

@ -441,10 +441,12 @@ bool virtio_scsi_handle_ctrl_vq(VirtIOSCSI *s, VirtQueue *vq)
VirtIOSCSIReq *req;
bool progress = false;
virtio_scsi_acquire(s);
while ((req = virtio_scsi_pop_req(s, vq))) {
progress = true;
virtio_scsi_handle_ctrl_req(s, req);
}
virtio_scsi_release(s);
return progress;
}
@ -602,6 +604,7 @@ bool virtio_scsi_handle_cmd_vq(VirtIOSCSI *s, VirtQueue *vq)
QTAILQ_HEAD(, VirtIOSCSIReq) reqs = QTAILQ_HEAD_INITIALIZER(reqs);
virtio_scsi_acquire(s);
do {
virtio_queue_set_notification(vq, 0);
@ -629,6 +632,7 @@ bool virtio_scsi_handle_cmd_vq(VirtIOSCSI *s, VirtQueue *vq)
QTAILQ_FOREACH_SAFE(req, &reqs, next, next) {
virtio_scsi_handle_cmd_req_submit(s, req);
}
virtio_scsi_release(s);
return progress;
}
@ -760,10 +764,13 @@ out:
bool virtio_scsi_handle_event_vq(VirtIOSCSI *s, VirtQueue *vq)
{
virtio_scsi_acquire(s);
if (s->events_dropped) {
virtio_scsi_push_event(s, NULL, VIRTIO_SCSI_T_NO_EVENT, 0);
virtio_scsi_release(s);
return true;
}
virtio_scsi_release(s);
return false;
}