diff options
| author | Sean Christopherson <seanjc@google.com> | 2025-05-22 16:52:17 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-06-23 09:50:57 -0700 |
| commit | a52664134a24f3b0c425781082ce993617fc2797 (patch) | |
| tree | d57651ddb14e1ed1cf0c55e00b8fcaf3fefde629 | |
| parent | 867347bb21e18551b48eb147c0b2d8635909c8b5 (diff) | |
xen: privcmd: Don't mark eventfd waiter as EXCLUSIVE
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.
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250522235223.3178519-8-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | drivers/xen/privcmd.c | 1 |
1 files changed, 0 insertions, 1 deletions
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); } |