Handle warning of allocation failure on DMA zone w/o managed pages
This is back ported from upstream directly, no conflict
Bugzilla: https://bugzilla.redhat.com/2024381 Upstream: In linus's tree
commit 62b3107073646e0946bd97ff926832bafb846d17 Author: Baoquan He bhe@redhat.com Date: Fri Jan 14 14:07:37 2022 -0800
mm_zone: add function to check if managed dma zone exists
Signed-off-by: Baoquan He bhe@redhat.com
Edited by Baoquan He