Acknowledged I never used this before. But it looks legit, workqueues use this thing.
On Mon, Jun 8, 2026 at 3:26 PM Liu Kui <[email protected]> wrote: > > The wait_event() puts the watcher task in TASK_UNINTERRUPTIBLE state > that still contributes to system load, so a long-lived watched process > triggers khungtaskd: > > INFO: task krpc_watcher:225326 blocked for more than 1228 seconds. > > Use wait_event_idle() instead to put the task in TASK_IDLE state > without contributing to system load. > > https://virtuozzo.atlassian.net/browse/VSTOR-134207 > > Signed-off-by: Liu Kui <[email protected]> > --- > fs/fuse/kio/pcs/pcs_krpc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/fuse/kio/pcs/pcs_krpc.c b/fs/fuse/kio/pcs/pcs_krpc.c > index 7d5a9619276d..3b42fd7d4489 100644 > --- a/fs/fuse/kio/pcs/pcs_krpc.c > +++ b/fs/fuse/kio/pcs/pcs_krpc.c > @@ -669,7 +669,7 @@ static int krpc_watcher_fn(void *data) > { > struct pcs_krpc_set *krpcs = data; > > - wait_event(krpcs->watched_pid->wait_pidfd, > + wait_event_idle(krpcs->watched_pid->wait_pidfd, > process_has_exited(krpcs->watched_pid) || > kthread_should_stop()); > > kthread_stop(krpcs->sender_task); > -- > 2.50.1 (Apple Git-155) _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
