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SubjectRe: [RFC][-mm] Add an owner to the mm_struct (v4)
On Wed, 02 Apr 2008 08:55:34 +0530
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

> >
> >> + /*
> >> + * Search through everything else. We should not get
> >> + * here often
> >> + */
> >> + do_each_thread(g, c) {
> >> + if (c->mm == mm)
> >> + goto assign_new_owner;
> >> + } while_each_thread(g, c);
> >
> > Doing above in synchronized manner seems too heavy.
> > When this happen ? or Can this be done in lazy "on-demand" manner ?
> >
>
> Do you mean under task_lock()?
>
No, scanning itself.
How rarely this scan happens under a server which has 10000- threads ?
Thanks,
-Kame



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