diff options
Diffstat (limited to 'drivers/hv/mshv_eventfd.c')
| -rw-r--r-- | drivers/hv/mshv_eventfd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/hv/mshv_eventfd.c b/drivers/hv/mshv_eventfd.c index 48c514da34eb..806674722868 100644 --- a/drivers/hv/mshv_eventfd.c +++ b/drivers/hv/mshv_eventfd.c @@ -368,6 +368,14 @@ static void mshv_irqfd_queue_proc(struct file *file, wait_queue_head_t *wqh, container_of(polltbl, struct mshv_irqfd, irqfd_polltbl); irqfd->irqfd_wqh = wqh; + + /* + * TODO: Ensure there isn't already an exclusive, priority waiter, e.g. + * that the irqfd isn't already bound to another partition. Only the + * first exclusive waiter encountered will be notified, and + * add_wait_queue_priority() doesn't enforce exclusivity. + */ + irqfd->irqfd_wait.flags |= WQ_FLAG_EXCLUSIVE; add_wait_queue_priority(wqh, &irqfd->irqfd_wait); } |