RE: [mempolicy] 5507231dd04: -18.2% vm-scalability.migrate_mbps

["Horiguchi, Naoya" <Naoya.Horiguchi@xxxxxxxxx>]

Title: RE: [mempolicy] 5507231dd04: -18.2% vm-scalability.migrate_mbps

> Hi Naoya,                                                                                     
>
> FYI, we noticed the below changes on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git am437x-starterkit
> commit 5507231dd04d3d68796bafe83e6a20c985a0ef68 ("mempolicy: apply page table walker on queue_pages_range()")

This patch is to be revised with one with less performance impact,
where I stop calling ->pte_entry() callback heavily.

Thanks,
Naoya Horiguchi