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aio: Add "is_external" flag for event handlers

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All callers pass in false, and the real external ones will switch to
true in coming patches.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2015-10-23 11:08:05 +08:00 • committed by Kevin Wolf
parent d87d01e16a
commit dca21ef23b
17 changed files with 130 additions and 84 deletions
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24
hw/scsi/virtio-scsi-dataplane.c
View file

@ -60,7 +60,8 @@ static VirtIOSCSIVring *virtio_scsi_vring_init(VirtIOSCSI *s,
r = g_new(VirtIOSCSIVring, 1);
r->host_notifier = *virtio_queue_get_host_notifier(vq);
r->guest_notifier = *virtio_queue_get_guest_notifier(vq);
aio_set_event_notifier(s->ctx, &r->host_notifier, handler);
aio_set_event_notifier(s->ctx, &r->host_notifier, false,
handler);
r->parent = s;
@ -71,7 +72,8 @@ static VirtIOSCSIVring *virtio_scsi_vring_init(VirtIOSCSI *s,
return r;
fail_vring:
aio_set_event_notifier(s->ctx, &r->host_notifier, NULL);
aio_set_event_notifier(s->ctx, &r->host_notifier, false,
NULL);
k->set_host_notifier(qbus->parent, n, false);
g_free(r);
return NULL;
@ -162,14 +164,17 @@ static void virtio_scsi_clear_aio(VirtIOSCSI *s)
int i;
if (s->ctrl_vring) {
aio_set_event_notifier(s->ctx, &s->ctrl_vring->host_notifier, NULL);
aio_set_event_notifier(s->ctx, &s->ctrl_vring->host_notifier,
false, NULL);
}
if (s->event_vring) {
aio_set_event_notifier(s->ctx, &s->event_vring->host_notifier, NULL);
aio_set_event_notifier(s->ctx, &s->event_vring->host_notifier,
false, NULL);
}
if (s->cmd_vrings) {
for (i = 0; i < vs->conf.num_queues && s->cmd_vrings[i]; i++) {
aio_set_event_notifier(s->ctx, &s->cmd_vrings[i]->host_notifier, NULL);
aio_set_event_notifier(s->ctx, &s->cmd_vrings[i]->host_notifier,
false, NULL);
}
}
}
@ -290,10 +295,13 @@ void virtio_scsi_dataplane_stop(VirtIOSCSI *s)
aio_context_acquire(s->ctx);
aio_set_event_notifier(s->ctx, &s->ctrl_vring->host_notifier, NULL);
aio_set_event_notifier(s->ctx, &s->event_vring->host_notifier, NULL);
aio_set_event_notifier(s->ctx, &s->ctrl_vring->host_notifier,
false, NULL);
aio_set_event_notifier(s->ctx, &s->event_vring->host_notifier,
false, NULL);
for (i = 0; i < vs->conf.num_queues; i++) {
aio_set_event_notifier(s->ctx, &s->cmd_vrings[i]->host_notifier, NULL);
aio_set_event_notifier(s->ctx, &s->cmd_vrings[i]->host_notifier,
false, NULL);
}
blk_drain_all(); /* ensure there are no in-flight requests */