Messages in this thread |  | | | Date | Wed, 28 Feb 2007 14:40:53 +0530 | | From | Srivatsa Vaddagiri <> | | Subject | Re: Problem with freezable workqueues |
On Wed, Feb 28, 2007 at 11:48:59AM +0300, Oleg Nesterov wrote: > On 02/28, Srivatsa Vaddagiri wrote: > > We can just thaw the worker thread selectively before kthread_stopping > > them. This will let us freeze all worker threads (which we want to for > > hotplug anyway). > > I am not sure this is a good change for 2.6.21.
So we make that change when merging the freezer-based hotplug patchset?
> I strongly believe it is better to change XFS so that it doesn't use > create_freezeable_workqueue() as Rafael suggested.
Ok no issues. But when we enable freezer-based hotplug, we expect all non-singlethreaded worker threads to be frozen (for hotplug atleast).
> Besides, freezeable workqueues are buggy anyway in 2.6.21-rc, > > http://marc.theaimsgroup.com/?l=linux-kernel&m=116855740612755 > > This means that workqueues become non-freezeable after suspend/resume > anyway (if I understand disable_nonboot_cpus() correctly).
Ah ok. When is the above patch expected to be merged?
-- Regards, vatsa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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