psi: Add PSI_CPU_FULL state
mainline inclusion from mainline-v5.13-rc1 commit e7fcd762 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I562O9 CVE: NA backport: openEuler-22.03-LTS Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e7fcd762282332f765af2035a9568fb126fa3c01 -------------------------------- The FULL state doesn't exist for the CPU resource at the system level, but exist at the cgroup level, means all non-idle tasks in a cgroup are delayed on the CPU resource which used by others outside of the cgroup or throttled by the cgroup cpu.max configuration. Co-developed-by: NMuchun Song <songmuchun@bytedance.com> Signed-off-by: NMuchun Song <songmuchun@bytedance.com> Signed-off-by: NChengming Zhou <zhouchengming@bytedance.com> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: NIngo Molnar <mingo@kernel.org> Acked-by: NJohannes Weiner <hannes@cmpxchg.org> Link: https://lkml.kernel.org/r/20210303034659.91735-2-zhouchengming@bytedance.comSigned-off-by: NChen Wandun <chenwandun@huawei.com> Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
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