memcg: enable CONFIG_MEMCG_QOS by default

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I3ZN3O
CVE: NA

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enable CONFIG_MEMCG_QOS to support memcg OOM priority.
Signed-off-by: NJing Xiangfeng <jingxiangfeng@huawei.com>
Reviewed-by: NLiu Shixin <liushixin2@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/configs/openeuler_defconfig

@@ -1006,6 +1006,7 @@ CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
 # CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
 CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
+CONFIG_MEMCG_QOS=y
 CONFIG_CMA=y
 # CONFIG_CMA_DEBUG is not set
 # CONFIG_CMA_DEBUGFS is not set

arch/x86/configs/openeuler_defconfig

@@ -988,6 +988,7 @@ CONFIG_ARCH_WANTS_THP_SWAP=y
 CONFIG_THP_SWAP=y
 CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
+CONFIG_MEMCG_QOS=y
 # CONFIG_CMA is not set
 CONFIG_MEM_SOFT_DIRTY=y
 CONFIG_ZSWAP=y