Re: [PATCH] call sysrq_timer_list_show from a workqueue

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From: Ingo Molnar

Subject: Re: [PATCH] call sysrq_timer_list_show from a workqueue

Date: Tuesday, January 8, 2008 - 8:51 am

* Rusty Russell <rusty@rustcorp.com.au> wrote:

quoted text> On Tuesday 08 January 2008 22:33:23 Ingo Molnar wrote:
> > * Rusty Russell <rusty@rustcorp.com.au> wrote:
> > > +/* FIXME: Risky: returns a pointer into a module w/o lock */
> >
> > stupid question: since module unloads are so rare, why isnt this via 
> > the same mechanism that CPU hotplug uses to securely unregister 
> > CPUs? I.e. quiet all CPUs, disable irqs on all of them, then unlink 
> > the module.
> 
> That's what we do.  This old locking stuff is legacy.

oh, wonderful :-)

quoted text> And here's the patch for the FIXME (which I put in to remind myself):
> 
> Make module_address_lookup safe

cool :-)

finally we have a _really_ sane symbols subsystem. Kudos :)

	Ingo
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Messages in current thread:

[PATCH] call sysrq_timer_list_show from a workqueue, Kyle McMartin, (Mon Jan 7, 11:31 pm)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Ingo Molnar, (Tue Jan 8, 2:17 am)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Rusty Russell, (Tue Jan 8, 4:28 am)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Ingo Molnar, (Tue Jan 8, 4:33 am)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Rusty Russell, (Tue Jan 8, 4:50 am)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Kyle McMartin, (Tue Jan 8, 7:41 am)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Ingo Molnar, (Tue Jan 8, 8:51 am)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Rusty Russell, (Tue Jan 8, 3:48 pm)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Ingo Molnar, (Tue Jan 8, 3:52 pm)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Andrew Morton, (Tue Jan 8, 5:21 pm)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Andrew Morton, (Tue Jan 8, 8:33 pm)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Rusty Russell, (Tue Jan 8, 9:27 pm)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Andrew Morton, (Tue Jan 8, 9:45 pm)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Paulo Marques, (Wed Jan 9, 8:24 am)

Re: [PATCH] call sysrq_timer_list_show from a workqueue, Rusty Russell, (Wed Jan 9, 2:58 pm)


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