Though zram pages are movable, they aren't allowed to enter
MIGRATE_CMA pageblocks. zram is not seen to pin pages for
long which can cause an issue. Moreover allowing zram to
pick CMA pages can be helpful in cases seen where zram order
0 alloc fails when there are lots of free cma pages, resulting
in kswapd or direct reclaim not making enough progress.
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Chris Goldsworthy <cgoldswo@codeaurora.org>
Bug: 158645321
Link: https://lore.kernel.org/linux-mm/4c77bb100706b714213ff840d827a48e40ac9177.1604282969.git.cgoldswo@codeaurora.org/
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I406f92a4175367caec38ef8b8eaca7020ae09917
4f9d16a68d