Gabriele Monaco 1842bf97af sched/deadline: Use revised wakeup rule only for running dl_server ...

Commit 14a8570564 ("sched/deadline: Use revised wakeup rule for
dl_server") applies the revised wakeup rule to any server, as a result
servers that are not running (dl_defer_running == 0) and start with a
deadline overflow get enqueued and can boost tasks as if they were
running, invalidating the defer rule and the documented state model.

Apply the revised wakeup rule only for deferrable servers that are
marked as running.

Fixes: 14a8570564 ("sched/deadline: Use revised wakeup rule for dl_server")
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Tested-by: Andrea Righi <arighi@nvidia.com>
Link: https://patch.msgid.link/20260522125833.264145-1-gmonaco@redhat.com

2026-07-30 12:59:23 +02:00

..

ext

sched_ext: Skip ops.set_weight() for disabled tasks

2026-07-10 06:41:28 -10:00

autogroup.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

autogroup.h

sched: Clean up and standardize #if/#else/#endif markers in sched/autogroup.[ch]

2025-06-13 08:47:14 +02:00

build_policy.c

sched_ext: Move sources under kernel/sched/ext/

2026-06-22 05:32:56 -10:00

build_utility.c

sched/smp: Make SMP unconditional

2025-06-13 08:47:18 +02:00

clock.c

sched/clock: Avoid false sharing for sched_clock_irqtime

2026-02-03 12:04:19 +01:00

completion.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

core_sched.c

sched: Unify SMT active check via sched_smt_active()

2026-05-19 12:17:37 +02:00

core.c

Merge tag 'block-7.2-20260625' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2026-06-25 09:56:47 -07:00

cpuacct.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

cpudeadline.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

cpudeadline.h

sched/deadline: only set free_cpus for online runqueues

2025-10-16 11:13:49 +02:00

cpufreq_schedutil.c

cpufreq: schedutil: Fix uncleared need_freq_update on the .adjust_perf() path

2026-06-17 20:07:47 +02:00

cpufreq.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

cpupri.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

cpupri.h

sched/smp: Make SMP unconditional

2025-06-13 08:47:18 +02:00

cputime.c

Merge branch 'idle-time-acc' into features

2026-06-16 16:21:46 +02:00

deadline.c

sched/deadline: Use revised wakeup rule only for running dl_server

2026-07-30 12:59:23 +02:00

debug.c

sched/fair: Remove task_group->se pointer array

2026-06-02 12:26:11 +02:00

fair.c

sched/fair: Fix newidle vs core-sched

2026-06-11 13:41:23 +02:00

features.h

sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT

2026-05-19 12:17:39 +02:00

idle.c

Merge tag 'sched-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip

2026-06-15 14:50:18 +05:30

isolation.c

cgroup/cpuset: Call housekeeping_update() without holding cpus_read_lock

2026-02-23 10:46:49 -10:00

loadavg.c

Merge branch 'tip/sched/urgent'

2025-07-14 17:16:28 +02:00

Makefile

sched: Enable context analysis for core.c and fair.c

2026-01-05 16:43:36 +01:00

membarrier.c

Merge tag 'locking-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip

2026-06-15 14:21:14 +05:30

pelt.c

treewide: Update email address

2026-01-11 06:09:11 -10:00

pelt.h

sched/fair: Switch to task based throttle model

2025-09-03 10:03:14 +02:00

psi.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

rq-offsets.c

sched: Make migrate_{en,dis}able() inline

2025-09-25 09:57:16 +02:00

rt.c

sched: Rework prev_balance() to avoid stale prev references

2026-06-02 12:26:06 +02:00

sched-pelt.h

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

sched.h

sched_ext: Move sources under kernel/sched/ext/

2026-06-22 05:32:56 -10:00

smp.h

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

stats.c

sched/smp: Use the SMP version of schedstats

2025-06-13 08:47:21 +02:00

stats.h

sched/fair: Co-locate cfs_rq and sched_entity in cfs_tg_state

2026-06-02 12:26:10 +02:00

stop_task.c

sched: Rework prev_balance() to avoid stale prev references

2026-06-02 12:26:06 +02:00

swait.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

syscalls.c

Merge tag 'v7.0-rc4' into sched/core, to pick up scheduler fixes

2026-03-17 07:14:42 +01:00

topology.c

sched/topology: Provide arch_llc_mask for cache aware scheduling

2026-05-29 12:43:15 +02:00

wait_bit.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

wait.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2025-07-30 17:14:01 -07:00