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linux/kernel/sched
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Vincent Guittot 17e3e88ed0 sched/fair: Fix pelt lost idle time detection 
The check for some lost idle pelt time should be always done when
pick_next_task_fair() fails to pick a task and not only when we call it
from the fair fast-path.

The case happens when the last running task on rq is a RT or DL task. When
the latter goes to sleep and the /Sum of util_sum of the rq is at the max
value, we don't account the lost of idle time whereas we should.

Fixes: 67692435c4 ("sched: Rework pick_next_task() slow-path")
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
 		2025-10-14 13:43:08 +02:00
..
Makefile tracing: Disable branch profiling in noinstr code 2025-03-22 09:49:26 +01:00
autogroup.c sched: Clean up and standardize #if/#else/#endif markers in sched/autogroup.[ch] 2025-06-13 08:47:14 +02:00
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 internal type and accessor definitions to ext_internal.h 2025-09-03 11:33:28 -10:00
build_utility.c sched/smp: Make SMP unconditional 2025-06-13 08:47:18 +02:00
clock.c sched: Clean up and standardize #if/#else/#endif markers in sched/clock.c 2025-06-13 08:47:14 +02:00
completion.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
core.c sched/deadline: Stop dl_server before CPU goes offline 2025-10-14 13:43:08 +02:00
core_sched.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
cpuacct.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
cpudeadline.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
cpudeadline.h sched/smp: Make SMP unconditional 2025-06-13 08:47:18 +02:00
cpufreq.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
cpufreq_schedutil.c sched: Clean up and standardize #if/#else/#endif markers in sched/cpufreq_schedutil.c 2025-06-13 08:47:15 +02:00
cpupri.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
cpupri.h sched/smp: Make SMP unconditional 2025-06-13 08:47:18 +02:00
cputime.c sched: Clean up and standardize #if/#else/#endif markers in sched/cputime.c 2025-06-13 08:47:15 +02:00
deadline.c sched/deadline: Stop dl_server before CPU goes offline 2025-10-14 13:43:08 +02:00
debug.c sched/deadline: Always stop dl-server before changing parameters 2025-08-26 10:46:00 +02:00
ext.c Revert "sched_ext: Use rhashtable_lookup() instead of rhashtable_lookup_fast()" 2025-09-23 20:38:23 -10:00
ext.h sched_ext: Use cgroup_lock/unlock() to synchronize against cgroup operations 2025-09-03 11:36:07 -10:00
ext_idle.c sched_ext: Merge branch 'for-6.17-fixes' into for-6.18 2025-09-23 09:10:20 -10:00
ext_idle.h sched_ext: Always use SMP versions in kernel/sched/ext_idle.h 2025-06-13 14:47:59 -10:00
ext_internal.h sched_ext: Add SCX_EFLAG_INITIALIZED to indicate successful ops.init() 2025-09-23 09:03:26 -10:00
fair.c sched/fair: Fix pelt lost idle time detection 2025-10-14 13:43:08 +02:00
features.h sched/fair: Untangle NEXT_BUDDY and pick_next_task() 2024-12-09 11:48:13 +01:00
idle.c sched/smp: Use the SMP version of the idle scheduling class 2025-06-13 08:47:21 +02:00
isolation.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
loadavg.c Merge branch 'tip/sched/urgent' 2025-07-14 17:16:28 +02:00
membarrier.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
pelt.c sched: Clean up and standardize #if/#else/#endif markers in sched/pelt.[ch] 2025-06-13 08:47:17 +02:00
pelt.h sched/fair: Switch to task based throttle model 2025-09-03 10:03:14 +02:00
psi.c sched/psi: Fix psi_seq initialization 2025-08-04 10:51:22 -07:00
rq-offsets.c sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
rt.c sched: Fix proxy/current (push,pull)ability 2025-07-14 17:16:33 +02:00
sched-pelt.h sched: Make clangd usable 2025-06-11 11:20:53 +02:00
sched.h Scheduler updates for v6.18: 2025-09-30 10:35:11 -07:00
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: Clean up and standardize #if/#else/#endif markers in sched/stats.[ch] 2025-06-13 08:47:17 +02:00
stop_task.c sched/smp: Use the SMP version of the stop-CPU scheduling class 2025-06-13 08:47:21 +02:00
swait.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
syscalls.c sched/smp: Use the SMP version of the scheduler syscalls 2025-06-13 08:47:21 +02:00
topology.c Scheduler updates for v6.18: 2025-09-30 10:35:11 -07:00
wait.c ARM: 2025-07-30 17:14:01 -07:00
wait_bit.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00