Messages in this thread | | | Date | Wed, 6 Nov 2019 18:42:13 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: handle_exit_race && PF_EXITING |
| |
On Wed, 6 Nov 2019, Oleg Nesterov wrote: > > I think that (with or without this fix) handle_exit_race() logic needs > cleanups, there is no reason for get_futex_value_locked(), we can drop > ->pi_lock right after we see PF_EXITPIDONE. Lets discuss this later.
Which still is in atomic because the hash bucket lock is held, ergo get_futex_value_locked() needs to stay for now.
So the only thing we could do is to reduce the pi_lock held section a bit.
Thanks,
tglx
| |