diff mbox series

[v3,07/13] xen: privcmd: Don't mark eventfd waiter as EXCLUSIVE

Message ID 20250522235223.3178519-8-seanjc@google.com
State New
Headers show
Series [v3,01/13] KVM: Use a local struct to do the initial vfs_poll() on an irqfd | expand

Commit Message

Sean Christopherson May 22, 2025, 11:52 p.m. UTC 
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 mbox series

Patch

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);
 }