Re: [PATCH 4/4] sched,fair: Fix PELT integrity for new tasks

From	Mike Galbraith <umgwanakikbuti@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 4/4] sched,fair: Fix PELT integrity for new tasks
Date	2016-08-01 14:00 +0200
Message-ID	<s1k2Z-5PD-3@gated-at.bofh.it> (permalink)
References	<rL0KZ-6mx-9@gated-at.bofh.it> <rL0L0-6mx-23@gated-at.bofh.it> <s1fZn-3j6-3@gated-at.bofh.it> <s1hRw-4vm-13@gated-at.bofh.it> <s1iDU-53D-33@gated-at.bofh.it>
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On Mon, 2016-08-01 at 17:56 +0800, Wanpeng Li wrote:
> 2016-08-01 17:31 GMT+08:00 Mike Galbraith <umgwanakikbuti@gmail.com>:
> > On Mon, 2016-08-01 at 15:30 +0800, Wanpeng Li wrote:
> > 
> > > What's the meaning of "the task is hashed before we call
> > > wake_up_new_task()"?
> > 
> > See fork.c::copy_process()
> > 
> >         /*
> >          * Make it visible to the rest of the system, but dont wake
> > it up yet.
> >          * Need tasklist lock for parent etc handling!
> >          */
> >         write_lock_irq(&tasklist_lock);
> >         ....
> 
> Thanks Mike, so here "is hashed" means that add to list instead of 
> real hashing.

Yeah.

	-Mike

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Re: [PATCH 4/4] sched,fair: Fix PELT integrity for new tasks Wanpeng Li <kernellwp@gmail.com> - 2016-08-01 09:40 +0200
  Re: [PATCH 4/4] sched,fair: Fix PELT integrity for new tasks Mike Galbraith <umgwanakikbuti@gmail.com> - 2016-08-01 11:40 +0200
    Re: [PATCH 4/4] sched,fair: Fix PELT integrity for new tasks Wanpeng Li <kernellwp@gmail.com> - 2016-08-01 12:30 +0200
      Re: [PATCH 4/4] sched,fair: Fix PELT integrity for new tasks Mike Galbraith <umgwanakikbuti@gmail.com> - 2016-08-01 14:00 +0200

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