Messages in this thread | | | Subject | Re: [PATCH 3/4] tty: Iterate only thread group leaders in __do_SAK() | From | Kirill Tkhai <> | Date | Fri, 12 Jan 2018 11:42:30 +0300 |
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On 11.01.2018 21:34, Oleg Nesterov wrote: > On 01/11, Kirill Tkhai wrote: >> >> Since threads can't have additional fd in comparison >> to thread group leader > ... >> as they definitely have the same >> files struct, as thread group leader. > > Hmm. Why? Iirc CLONE_THREAD doesn't require CLONE_FILES?
Oh, it's really so. Surprise. Thanks for pointing that. I'll try to find a way, how we can iterate threads fds using rcu.
> Also. The group leader can exit, in this case its ->files == NULL > but other threads can be alive.
Sure, thanks, Oleg.
Kirill
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