mm: refactor the reclaim thread of page cache from per-cpu to per-node
hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SK3S CVE: NA ---------------------------------------------- In feature page cache limit, the reclaim work is per-cpu, it is unnecessary and will result some performance degradation in some case, such as storage (some cpus are devote for dead loop, no other works should be excuted on these cpus). In order to solve this, change the reclaim work thread from per-cpu to per-node and meanwhile dont bind these work thread to any cpus. Signed-off-by:Chen Wandun <chenwandun@huawei.com> Reviewed-by:
Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by:
Yongqiang Liu <liuyongqiang13@huawei.com>
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