Re: [PATCH] cpuset: update top cpuset's mems after adding a node

[David Rientjes]

On Mon, 10 Nov 2008, Miao Xie wrote:

> on 2008-11-10 14:56 Yasunori Goto wrote:
> > Did you test this patch?  Was it OK?
> 
> I did it on IA64 just now. Updating top cpuset's mems is fine.
> But I forgot to update the mems_allowed of every task in top cpuset group.
> It is difficult to fix it, because I don't know whether updating a memory-bound
> task's mem_allowed is good or not.
> 

There's a fix pending in the mmotm tree that calls 
cpuset_update_task_memory_state() in the slow path of the page allocator, 
so if one of these tasks fails to allocate memory, its cached mems_allowed 
nodemask will be updated to include the new node(s).

The patch is available at 
http://userweb.kernel.org/~akpm/mmotm/broken-out/cpusets-update-mems-allowed-in-page-allocator.patch
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/