Messages in this thread | | | Date | Tue, 11 Dec 2012 05:47:58 -0800 | From | Tejun Heo <> | Subject | Re: [RFC PATCH v3 1/9] CPU hotplug: Provide APIs to prevent CPU offline from atomic context |
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Hello, Srivatsa.
On Tue, Dec 11, 2012 at 06:43:54PM +0530, Srivatsa S. Bhat wrote: > This approach (of using synchronize_sched()) also looks good. It is simple, > yet effective, but unfortunately inefficient at the writer side (because > he'll have to wait for a full synchronize_sched()).
While synchornize_sched() is heavier on the writer side than the originally posted version, it doesn't stall the whole machine and wouldn't introduce latencies to others. Shouldn't that be enough?
Thanks.
-- tejun
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