Don't set WQ_FLAG_EXCLUSIVE when adding an irqfd to a wait queue, as irqfd_wakeup() unconditionally returns '0', i.e. doesn't actually operate in exclusive mode.
Note, the use of WQ_FLAG_PRIORITY is also dubious, but that's a problem for another day.
Signed-off-by: Sean Christopherson seanjc@google.com --- drivers/xen/privcmd.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index c08ec8a7d27c..13a10f3294a8 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -957,7 +957,6 @@ irqfd_poll_func(struct file *file, wait_queue_head_t *wqh, poll_table *pt) struct privcmd_kernel_irqfd *kirqfd = container_of(pt, struct privcmd_kernel_irqfd, pt);
- kirqfd->wait.flags |= WQ_FLAG_EXCLUSIVE; add_wait_queue_priority(wqh, &kirqfd->wait); }