On Wed 04-03-15 18:46:43, Naveen Kumar Parna wrote: > Hello, > > I have a question regarding the synchronization mechanism between > wait_for_completion_interruptible_timeout() & complete(). I used > complete() API in the ISR Tx interrupt path and > wait_for_completion_interruptible_timeout() in struct file_operations > .write method. > > Let assume a scenario in which Tx interrupt occurred and ISR called > complete() API before any process actually blocked at write method on > wait_for_completion_interruptible_timeout(). > > After a few milli seconds, a process called write() API. Does it gets > blocked on wait_for_completion_interruptible_timeout() for completion > of a specific task to be signaled from new Tx interrupt?
No, see do_wait_for_common resp. complete and x->done handling. -- Michal Hocko SUSE Labs -- 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/
