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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

# gpg: Signature made Thu 16 Nov 2017 16:36:02 GMT
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  throttle-groups: forget timer and schedule next TGM on detach

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-11-16 17:26:43 +00:00
commit afdad8b684
1 changed files with 12 additions and 0 deletions
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12
block/throttle-groups.c
View File

@ -593,13 +593,25 @@ void throttle_group_attach_aio_context(ThrottleGroupMember *tgm,
void throttle_group_detach_aio_context(ThrottleGroupMember *tgm)
{
ThrottleGroup *tg = container_of(tgm->throttle_state, ThrottleGroup, ts);
ThrottleTimers *tt = &tgm->throttle_timers;
int i;
/* Requests must have been drained */
assert(tgm->pending_reqs[0] == 0 && tgm->pending_reqs[1] == 0);
assert(qemu_co_queue_empty(&tgm->throttled_reqs[0]));
assert(qemu_co_queue_empty(&tgm->throttled_reqs[1]));
/* Kick off next ThrottleGroupMember, if necessary */
qemu_mutex_lock(&tg->lock);
for (i = 0; i < 2; i++) {
if (timer_pending(tt->timers[i])) {
tg->any_timer_armed[i] = false;
schedule_next_request(tgm, i);
}
}
qemu_mutex_unlock(&tg->lock);
throttle_timers_detach_aio_context(tt);
tgm->aio_context = NULL;
}