mm: fix alloc CDM node memory for MPOL_BIND

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I612UG
CVE: NA

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Memory can be allocated from a specified CDM node only when it is
allowed to apply for memory from the CDM node. Otherwise, memory
will be allocated from other non-CDM nodes that are not allowed by
th cpuset.
Signed-off-by: NZhou Guanghui <zhouguanghui1@huawei.com>

mm/page_alloc.c

@@ -3873,7 +3873,8 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags,
 			(alloc_flags & ALLOC_CPUSET) &&
 			!__cpuset_zone_allowed(zone, gfp_mask)
 #ifdef CONFIG_COHERENT_DEVICE
-			&& !(alloc_flags & ALLOC_CDM)
+			&& (!is_cdm_node(zone->zone_pgdat->node_id) ||
+			    !(alloc_flags & ALLOC_CDM))
 #endif
 		)
 				continue;