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Handle warning of allocation failure on DMA zone w/o managed pages

Baoquan He requested to merge baoquan_he/centos-stream-9:bz2024381 into main

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

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