Add the vendor hook to freezer.c, because of some special cases related to our feature, we do not want the process to be frozen immediately, so we add the hook at __refrigerator to make sure we can go to our own freeze logic when the process is about to be frozen.
Bug: 187458531
Signed-off-by: heshuai1 <heshuai1@xiaomi.com>
Change-Id: Iea42fd9604d6b33ccd6502425416f0dd28eecebb
Add a vendor hook when a set of tasks change the cgroups in
the controller for performance tuning.
Bug: 187972571
Signed-off-by: Jing-Ting Wu <Jing-Ting.Wu@mediatek.com>
Change-Id: If0ea3d089e077a4650507c69b6e60952d102fa1d
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>
Add a vendor hook after attaching a task to a cgroup to
recognize the group_id for performance tuning
Bug: 181917687
Signed-off-by: Frankie Chang <frankie.chang@mediatek.com>
Change-Id: I603afa3d893dd575a7dcb97f83bd9eacb8315bab
(cherry picked from commit de089a37a3d248608a1d5855a4ae82ebad3ec2ab)
