* Gautham R Shenoy <[email protected]> wrote:
> Hi,
> This is Try #3 for the Refcount + Waitqueue based implementation
> for cpu-hotplug locking. The earlier versions can be found at
>
> http://lkml.org/lkml/2007/10/24/36
> and
> http://lkml.org/lkml/2007/10/16/118.
>
> This version drops the patch 4 from the earlier series, which was
> basically removing the CPU_DEAD and CPU_UP_CANCELLED event handling in
> the workqueue subsystem. This was based on Oleg Nestertov's comments
> since the problem which the patch was attempting to solve was more
> complicated and needs to be looked into seperately.
>
> The patch series is against v2.6.24-rc2 and has survived
> overnight kern_bench + cpu-offline-online tests on
> - 8 way x86,
> - 8 way x86_64,
> - 128 way ppc64 boxes.
>
> The patch series has gone through many iterations and looks to have
> matured in the process.
>
> Andrew, could you please consider it for the next -mm release if there
> are no objections ?
really nice stuff!
Acked-by: Ingo Molnar <[email protected]>
since this is in essence a regression fix, how about a v2.6.24 merge?
CPU online/offline never worked really reliably and it's used by
suspend/resume as wel.
Ingo
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