[PATCH 0/6] sched/deadline, (rt): Sched class cleanups

From: Dietmar Eggemann
Date: Wed Mar 02 2022 - 13:34:49 EST


While trying to improve the Deadline sched class behaviour for
asymmetric CPU capacity systems I came across some possible
cleanups for DL (and RT).

Overview:

[PATCH 1/6] - Remove `struct dl_bandwidth def_dl_bandwidth`.

[PATCH 2/6] - Move functions into DL sched class which don't have to
be exported.

[PATCH 3/6] - Merge two DL admission control functions which provide
very similar functionality.

[PATCH 4/6] - Use DL rb_entry() macros and cached rbtree wrapper
`rb_first_cached()` consistently.

[PATCH 5/6] - Remove unused !CONFIG_SMP function definitions in DL/RT.

[PATCH 6/6] - Remove redundant function parameter in DL/RT.

Dietmar Eggemann (6):
sched/deadline: Remove unused def_dl_bandwidth
sched/deadline: Move bandwidth mgmt and reclaim functions into sched
class source file
sched/deadline: Merge dl_task_can_attach() and dl_cpu_busy()
sched/deadline: Use __node_2_[pdl|dle]() and rb_first_cached()
consistently
sched/deadline,rt: Remove unused functions for !CONFIG_SMP
sched/deadline,rt: Remove unused parameter from
pick_next_[rt|dl]_entity()

kernel/sched/core.c | 14 ++--
kernel/sched/deadline.c | 141 ++++++++++++++++++++--------------------
kernel/sched/rt.c | 16 +----
kernel/sched/sched.h | 53 +--------------
4 files changed, 84 insertions(+), 140 deletions(-)

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2.25.1