Re: [PATCH 1/8] PM: Add suspend block api.

From: Tejun Heo
Date: Fri May 21 2010 - 02:36:50 EST


On 05/21/2010 12:27 AM, Rafael J. Wysocki wrote:
>> Oh, this isn't an issue w/ cmwq. While frozen all new works are
>> collected into per-cpu delayed worklist and while frozen trustee in
>> charge of the cpu will keep waiting. Once thawed, trustee will
>> execute all works including the delayed ones unbound to any cpu.
> So, does it require any intrusive changes to make it possible to create
> multithread freezable workqueues?

cmwq itself is quite intrusive changes but w/ cmwq it just takes
flipping a flag when creating the queue.


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