On Sun, Sep 27, 2020 at 01:54:49PM +0800, [email protected] wrote: > From: Zqiang <[email protected]> > > There is a small race window when a delayed work is being canceled and > the work still might be queued from the timer_fn: > > CPU0 CPU1 > kthread_cancel_delayed_work_sync() > __kthread_cancel_work_sync() > __kthread_cancel_work() > work->canceling++; > kthread_delayed_work_timer_fn() > kthread_insert_work(); > > BUG: kthread_insert_work() should not get called when work->canceling > is set. > > Reviewed-by: Petr Mladek <[email protected]> > Signed-off-by: Zqiang <[email protected]>
Acked-by: Tejun Heo <[email protected]> This prolly should go throgh -mm. Can you please also add a stable: tag? Thanks. -- tejun
