On Sat, 28 Apr 2007 07:04:46 +0530 Gautham R Shenoy <ego@in.ibm.com> wrote:

quoted text
> This patch
> * Provides an interface to selectively freeze the system for different events.
> * Allows tasks to exempt themselves or other tasks from specific freeze
>   events.
> * Allow nesting of freezer calls. For eg:
> 
> 	freeze_processes(EVENT_A);
> 	/* Do something with respect to event A */
> 	.
> 	.
> 	.
> 	freeze_processes(EVENT_B);
> 	/* Do something with respect to event B */
> 	.
> 	.
> 	.
> 	thaw_processes(EVENT_B);
> 	.
> 	.
> 	.
> 	thaw_processes(EVENT_B);
> 
> This type of behaviour would be required when cpu hotplug would start
> using the process freezer, where EVENT_A would be SUSPEND and EVENT_B
> would be HOTPLUG_CPU.
> 
> This patch applies on the top of 2.6.21-rc7-mm2 + Rafael's freezer
> changes from http://lkml.org/lkml/2007/4/27/302.

I think I'll duck this.  We have more than enough kthread/freezer/etc work
queued for 2.6.22.  Let's please for now concentrate on reviewing and
testing the existing changes.  Once that has all landed and settled in,
let's start thinking about the next round.


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