linux/include/trace
Pavankumar Kondeti d4f032e36b ANDROID: cgroup: Add android_rvh_cgroup_force_kthread_migration
In Android GKI, CONFIG_FAIR_GROUP_SCHED is enabled [1] to help
prioritize important work. Given that CPU shares of root cgroup
can't be changed, leaving the tasks inside root cgroup will give
them higher share compared to the other tasks inside important
cgroups. This is mitigated by moving all tasks inside root cgroup to
a different cgroup after Android is booted. However, there are many
kernel tasks stuck in the root cgroup after the boot.

It is possible to relax kernel threads and kworkers migrations under
certain scenarios. However the patch [2] posted at upstream is not
accepted. Hence add a restricted vendor hook to notify modules when a
kernel thread is requested for cgroup migration. The modules can relax
the restrictions forced by the kernel and allow the cgroup migration.

[1] f08f049de1
[2] https://lore.kernel.org/lkml/1617714261-18111-1-git-send-email-pkondeti@codeaurora.org

Bug: 184594949
Change-Id: I445a170ba797c8bece3b4b59b7a42cdd85438f1f
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
2021-10-12 16:44:41 -07:00
..
events Merge 1da38549dd ("Merge tag 'nfsd-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux") into android-mainline 2021-10-09 14:38:00 +02:00
hooks ANDROID: cgroup: Add android_rvh_cgroup_force_kthread_migration 2021-10-12 16:44:41 -07:00
bpf_probe.h trace: bpf: Allow bpf to attach to bare tracepoints 2021-01-20 14:13:59 -08:00
define_trace.h tracepoint: Optimize using static_call() 2020-09-01 09:58:06 +02:00
perf.h
syscall.h tracepoints: Migrate to use SYSCALL_WORK flag 2020-11-16 21:53:15 +01:00
trace_events.h tracing: Add trace_event helper macros __string_len() and __assign_str_len() 2021-08-17 11:47:52 -04:00