Michal Koutný d6809c2f60 sched: Do not construct nor expose RT_GROUP_SCHED structures if disabled ...

Thanks to kernel cmdline being available early, before any
cgroup hierarchy exists, we can achieve the RT_GROUP_SCHED boottime
disabling goal by simply skipping any creation (and destruction) of
RT_GROUP data and its exposure via RT attributes.

We can do this thanks to previously placed runtime guards that would
redirect all operations to root_task_group's data when RT_GROUP_SCHED
disabled.

Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20250310170442.504716-8-mkoutny@suse.com

2025-04-08 20:55:54 +02:00

..

autogroup.c

Merge tag 'sched_ext-for-6.14-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

2025-02-14 11:14:24 -08:00

autogroup.h

sched/headers: Add header guard to kernel/sched/stats.h and kernel/sched/autogroup.h

2022-02-23 08:22:00 +01:00

build_policy.c

sched_ext: Move built-in idle CPU selection policy to a separate file

2025-01-27 12:43:43 -10:00

build_utility.c

sched/debug: Make CONFIG_SCHED_DEBUG functionality unconditional

2025-03-19 22:20:53 +01:00

clock.c

sched: Fix spelling in comments

2024-05-27 17:00:21 +02:00

completion.c

sched: add a few helpers to wake up tasks on the current cpu

2023-07-17 16:08:08 -07:00

core_sched.c

sched/debug: Change SCHED_WARN_ON() to WARN_ON_ONCE()

2025-03-19 22:20:53 +01:00

core.c

sched: Do not construct nor expose RT_GROUP_SCHED structures if disabled

2025-04-08 20:55:54 +02:00

cpuacct.c

Merge branch 'sched/fast-headers' into sched/core

2022-03-15 09:05:05 +01:00

cpudeadline.c

sched/topology: Consolidate and clean up access to a CPU's max compute capacity

2023-10-09 12:59:48 +02:00

cpudeadline.h

sched/headers: Simplify and clean up header usage in the scheduler

2018-03-04 12:39:29 +01:00

cpufreq_schedutil.c

cpufreq/schedutil: Only bind threads if needed

2025-01-23 21:09:25 +01:00

cpufreq.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

cpupri.c

sched/rt: Fix live lock between select_fallback_rq() and RT push

2023-09-28 22:58:13 +02:00

cpupri.h

sched/cpupri: Add CPUPRI_HIGHER

2020-10-29 11:00:30 +01:00

cputime.c

sched/clock: Don't define sched_clock_irqtime as static key

2025-03-10 14:22:58 +01:00

deadline.c

Merge tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-03-25 10:54:15 -07:00

debug.c

sched/topology: Wrappers for sched_domains_mutex

2025-03-17 11:23:41 +01:00

ext_idle.c

sched_ext: idle: Refactor scx_select_cpu_dfl()

2025-03-14 08:17:11 -10:00

ext_idle.h

sched_ext: idle: Refactor scx_select_cpu_dfl()

2025-03-14 08:17:11 -10:00

ext.c

Merge tag 'sched-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-03-24 21:28:12 -07:00

ext.h

sched_ext: Implement SCX_OPS_ALLOW_QUEUED_WAKEUP

2025-02-13 07:30:46 -10:00

fair.c

sched/fair: Allow decaying util_est when util_avg > CPU capa

2025-04-08 20:55:52 +02:00

features.h

sched/fair: Untangle NEXT_BUDDY and pick_next_task()

2024-12-09 11:48:13 +01:00

idle.c

sched_ext: idle: Refresh idle masks during idle-to-idle transitions

2025-01-10 12:40:42 -10:00

isolation.c

sched/isolation: Consolidate housekeeping cpumasks that are always identical

2024-12-02 12:24:28 +01:00

loadavg.c

sched: Fix spelling in comments

2024-05-27 17:00:21 +02:00

Makefile

tracing: Disable branch profiling in noinstr code

2025-03-22 09:49:26 +01:00

membarrier.c

Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2024-03-22 10:41:13 -07:00

pelt.c

sched/fair: Use the new cfs_rq.h_nr_runnable

2024-12-09 11:48:11 +01:00

pelt.h

sched: Move update_other_load_avgs() to kernel/sched/pelt.c

2024-09-11 20:00:21 -10:00

psi.c

sched, psi: Don't account irq time if sched_clock_irqtime is disabled

2025-01-13 14:10:26 +01:00

rt.c

sched: Do not construct nor expose RT_GROUP_SCHED structures if disabled

2025-04-08 20:55:54 +02:00

sched-pelt.h

sched/fair: Fix "runnable_avg_yN_inv" not used warnings

2019-06-17 12:15:58 +02:00

sched.h

sched: Skip non-root task_groups with disabled RT_GROUP_SCHED

2025-04-08 20:55:53 +02:00

smp.h

sched, smp: Trace smp callback causing an IPI

2023-03-24 11:01:29 +01:00

stats.c

docs: Update Schedstat version to 17

2024-12-20 15:31:18 +01:00

stats.h

sched/debug: Change SCHED_WARN_ON() to WARN_ON_ONCE()

2025-03-19 22:20:53 +01:00

stop_task.c

sched: Add put_prev_task(.next)

2024-09-03 15:26:32 +02:00

swait.c

sched: add a few helpers to wake up tasks on the current cpu

2023-07-17 16:08:08 -07:00

syscalls.c

sched: Bypass bandwitdh checks with runtime disabled RT_GROUP_SCHED

2025-04-08 20:55:54 +02:00

topology.c

sched/topology: Refinement to topology_span_sane speedup

2025-04-08 20:55:52 +02:00

wait_bit.c

sched/wait: Remove unused bit_wait_io_timeout

2024-10-07 09:28:41 +02:00

wait.c

sched: remove wait bookmarks

2023-10-18 14:34:18 -07:00