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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-12-09 10:28:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-12-09 10:28:55 -0800 |
| commit | df9e2102de839c587eb50b2a5d1d19b07a6caaf5 (patch) | |
| tree | 0e2d8aedc4dc6c9b432a45d14aad33aadb8ad99b /Documentation | |
| parent | aeb68937614f4aeceaaa762bd7f0212ce842b797 (diff) | |
| parent | 82f9cc094975240885c93effbca7f4603f5de1bf (diff) | |
Merge tag 'sched_urgent_for_v6.13_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Remove wrong enqueueing of a task for a later wakeup when a task
blocks on a RT mutex
- Do not setup a new deadline entity on a boosted task as that has
happened already
- Update preempt= kernel command line param
- Prevent needless softirqd wakeups in the idle task's context
- Detect the case where the idle load balancer CPU becomes busy and
avoid unnecessary load balancing invocation
- Remove an unnecessary load balancing need_resched() call in
nohz_csd_func()
- Allow for raising of SCHED_SOFTIRQ softirq type on RT but retain the
warning to catch any other cases
- Remove a wrong warning when a cpuset update makes the task affinity
no longer a subset of the cpuset
* tag 'sched_urgent_for_v6.13_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking: rtmutex: Fix wake_q logic in task_blocks_on_rt_mutex
sched/deadline: Fix warning in migrate_enable for boosted tasks
sched/core: Update kernel boot parameters for LAZY preempt.
sched/core: Prevent wakeup of ksoftirqd during idle load balance
sched/fair: Check idle_cpu() before need_resched() to detect ilb CPU turning busy
sched/core: Remove the unnecessary need_resched() check in nohz_csd_func()
softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT kernel
sched: fix warning in sched_setaffinity
sched/deadline: Fix replenish_dl_new_period dl_server condition
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index dc663c0ca670..3872bc6ec49d 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4822,6 +4822,11 @@ can be preempted anytime. Tasks will also yield contended spinlocks (if the critical section isn't explicitly preempt disabled beyond the lock itself). + lazy - Scheduler controlled. Similar to full but instead + of preempting the task immediately, the task gets + one HZ tick time to yield itself before the + preemption will be forced. One preemption is when the + task returns to user space. print-fatal-signals= [KNL] debug: print fatal signals |