[5.4.17-2136.312.3.4] - Revert "fs: check FMODE_LSEEK to control internal pipe splicing" [Orabug: 34666845] [5.4.17-2136.312.3.3] cpus_read_lock deadlock [Orabug: 34607590] - cgroup: Elide write-locking threadgroup_rwsem when updating csses on an empty subtree [Orabug: 34607590] - cgroup: Optimize single thread migration [Orabug: 34607590] - Revert "cgroup: Add missing cpus_read_lock to cgroup ...