Re: [regression] cpuset,mm: update tasks' mems_allowed in time(58568d2)

From: David Rientjes
Date: Fri Feb 19 2010 - 04:42:41 EST


On Fri, 19 Feb 2010, KOSAKI Motohiro wrote:

> Personally, I like just revert at once than bandaid. 58568d2 didn't
> introduce any new feature, then we can revet it without abi breakage.
>

Revert a commit from more than six months ago when the fix is probably a
small patch in cpuset_attach()? I think we can do better than that.

This may not have introduced a new feature, but it was a worthwhile change
to avoid the old cpuset_update_task_memory_state() hooks in mempolicy,
page allocator, etc. code that could block on callback_mutex for iterating
the hierarchy.
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