Re: [PATCH v2 7/7] mm/migrate: remove result argument on pageallocation function for migration

[Joonsoo Kim]

On Wed, Dec 11, 2013 at 04:00:56PM +0000, Christoph Lameter wrote:
> On Wed, 11 Dec 2013, Joonsoo Kim wrote:
> 
> > In do_move_pages(), if error occurs, 'goto out_pm' is executed and the
> > page status doesn't back to userspace. So we don't need to store err number.
> 
> If a page cannot be moved then the error code is containing the number of
> pages that could not be migrated. The check there is for err < 0.
> So a positive number is not an error.
> 
> migrate_pages only returns an error code if we are running out of memory.

Ah... I missed it. I will drop this patch and send v3 for whole patchset.

Thanks.
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