Hello, On Mon, Jul 14, 2014 at 04:13:21PM +0800, Lai Jiangshan wrote: > It is said in the document that the timer which is being > deleted by del_timer_sync() should not be restarted: > Synchronization rules: Callers must prevent restarting of > the timer, otherwise this function is meaningless. > > Repeating timer may cause the del_timer_sync() spin longer, > or even spin forever in very very very very extreme condition.
I'm fairly sure del_timer_sync() can delete self-requeueing timers. The implementation busy-waits if the queued timer is the currently executing one and dequeues only while the timer isn't running which should be able to handle self-requeueing ones just fine. Thomas, del_timer_sync() can reliably delete self-requeueing ones, right? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
