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Content-Language: en-US To: Zi Yan , Mel Gorman , linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, David Hildenbrand , Mike Rapoport , Andrew Morton References: <20220124175957.1261961-1-zi.yan@sent.com> From: Vlastimil Babka In-Reply-To: <20220124175957.1261961-1-zi.yan@sent.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 17A501A0004 X-Stat-Signature: cz4qrzabdkzrr9h73obc7zrpxuhu6t44 Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=ih1ukAeS; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=AZjlxKnn; dmarc=none; spf=pass (imf19.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.28 as permitted sender) smtp.mailfrom=vbabka@suse.cz X-Rspam-User: nil X-HE-Tag: 1643125937-232796 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 1/24/22 18:59, Zi Yan wrote: > From: Zi Yan > > This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance. > It prepares for the upcoming removal of the MAX_ORDER-1 alignment > requirement for CMA and alloc_contig_range(). > > MIGRARTE_HIGHATOMIC should not merge with other migratetypes like > MIGRATE_ISOLATE and MIGRARTE_CMA[1], so this commit prevents that too. > > Remove MIGRARTE_CMA and MIGRATE_ISOLATE from fallbacks list, since they > are never used. > > [1] https://lore.kernel.org/linux-mm/20211130100853.GP3366@techsingularity.net/ > > Signed-off-by: Zi Yan > Acked-by: Mel Gorman Acked-by: Vlastimil Babka