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Linux kernel source tree
eaed94d1f6
Core & fair scheduler changes:
- Tweak wait_task_inactive() to force dequeue sched_delayed tasks
(John Stultz)
- Adhere to place_entity() constraints (Peter Zijlstra)
- Allow decaying util_est when util_avg > CPU capacity (Pierre Gondois)
- Fix up wake_up_sync() vs DELAYED_DEQUEUE (Xuewen Yan)
Energy management:
- Introduce sched_update_asym_prefer_cpu() (K Prateek Nayak)
- cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
(K Prateek Nayak)
- Align uclamp and util_est and call before freq update (Xuewen Yan)
CPU isolation:
- Make use of more than one housekeeping CPU (Phil Auld)
RT scheduler:
- Fix race in push_rt_task() (Harshit Agarwal)
- Add kernel cmdline option for rt_group_sched (Michal Koutný)
Scheduler topology support:
- Improve topology_span_sane speed (Steve Wahl)
Scheduler debugging:
- Move and extend the sched_process_exit() tracepoint (Andrii Nakryiko)
- Add RT_GROUP WARN checks for non-root task_groups (Michal Koutný)
- Fix trace_sched_switch(.prev_state) (Peter Zijlstra)
- Untangle cond_resched() and live-patching (Peter Zijlstra)
Fixes and cleanups:
- Misc fixes and cleanups (K Prateek Nayak, Michal Koutný,
Peter Zijlstra, Xuewen Yan)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core & fair scheduler changes:
- Tweak wait_task_inactive() to force dequeue sched_delayed tasks
(John Stultz)
- Adhere to place_entity() constraints (Peter Zijlstra)
- Allow decaying util_est when util_avg > CPU capacity (Pierre
Gondois)
- Fix up wake_up_sync() vs DELAYED_DEQUEUE (Xuewen Yan)
Energy management:
- Introduce sched_update_asym_prefer_cpu() (K Prateek Nayak)
- cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings
change (K Prateek Nayak)
- Align uclamp and util_est and call before freq update (Xuewen Yan)
CPU isolation:
- Make use of more than one housekeeping CPU (Phil Auld)
RT scheduler:
- Fix race in push_rt_task() (Harshit Agarwal)
- Add kernel cmdline option for rt_group_sched (Michal Koutný)
Scheduler topology support:
- Improve topology_span_sane speed (Steve Wahl)
Scheduler debugging:
- Move and extend the sched_process_exit() tracepoint (Andrii
Nakryiko)
- Add RT_GROUP WARN checks for non-root task_groups (Michal Koutný)
- Fix trace_sched_switch(.prev_state) (Peter Zijlstra)
- Untangle cond_resched() and live-patching (Peter Zijlstra)
Fixes and cleanups:
- Misc fixes and cleanups (K Prateek Nayak, Michal Koutný, Peter
Zijlstra, Xuewen Yan)"
* tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
sched/uclamp: Align uclamp and util_est and call before freq update
sched/util_est: Simplify condition for util_est_{en,de}queue()
sched/fair: Fixup wake_up_sync() vs DELAYED_DEQUEUE
sched,livepatch: Untangle cond_resched() and live-patching
sched/core: Tweak wait_task_inactive() to force dequeue sched_delayed tasks
sched/fair: Adhere to place_entity() constraints
sched/debug: Print the local group's asym_prefer_cpu
cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
sched/topology: Introduce sched_update_asym_prefer_cpu()
sched/fair: Use READ_ONCE() to read sg->asym_prefer_cpu
sched/isolation: Make use of more than one housekeeping cpu
sched/rt: Fix race in push_rt_task
sched: Add annotations to RT_GROUP_SCHED fields
sched: Add RT_GROUP WARN checks for non-root task_groups
sched: Do not construct nor expose RT_GROUP_SCHED structures if disabled
sched: Bypass bandwitdh checks with runtime disabled RT_GROUP_SCHED
sched: Skip non-root task_groups with disabled RT_GROUP_SCHED
sched: Add commadline option for RT_GROUP_SCHED toggling
sched: Always initialize rt_rq's task_group
sched: Remove unneeed macro wrap
...
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.