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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-10-20 11:30:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-10-20 11:30:56 -0700 |
| commit | 2b4d25010d0f2e359ff34e06c120e0cee3848fc7 (patch) | |
| tree | 08cecb09cce8f8e3f03c2044a65fffeec02c341b /kernel/time | |
| parent | Merge tag 'for-linus-6.12a-rc4-tag' of git://git.kernel.org/pub/scm/linux/ker... (diff) | |
| parent | MAINTAINERS: Add an entry for PREEMPT_RT. (diff) | |
| download | linux-2b4d25010d0f2e359ff34e06c120e0cee3848fc7.tar.gz linux-2b4d25010d0f2e359ff34e06c120e0cee3848fc7.zip | |
Merge tag 'sched_urgent_for_v6.12_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduling fixes from Borislav Petkov:
- Add PREEMPT_RT maintainers
- Fix another aspect of delayed dequeued tasks wrt determining their
state, i.e., whether they're runnable or blocked
- Handle delayed dequeued tasks and their migration wrt PSI properly
- Fix the situation where a delayed dequeue task gets enqueued into a
new class, which should not happen
- Fix a case where memory allocation would happen while the runqueue
lock is held, which is a no-no
- Do not over-schedule when tasks with shorter slices preempt the
currently running task
- Make sure delayed to deque entities are properly handled before
unthrottling
- Other smaller cleanups and improvements
* tag 'sched_urgent_for_v6.12_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add an entry for PREEMPT_RT.
sched/fair: Fix external p->on_rq users
sched/psi: Fix mistaken CPU pressure indication after corrupted task state bug
sched/core: Dequeue PSI signals for blocked tasks that are delayed
sched: Fix delayed_dequeue vs switched_from_fair()
sched/core: Disable page allocation in task_tick_mm_cid()
sched/deadline: Use hrtick_enabled_dl() before start_hrtick_dl()
sched/eevdf: Fix wakeup-preempt by checking cfs_rq->nr_running
sched: Fix sched_delayed vs cfs_bandwidth
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/tick-sched.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 753a184c7090..f203f000da1a 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -434,6 +434,12 @@ static void tick_nohz_kick_task(struct task_struct *tsk) * smp_mb__after_spin_lock() * tick_nohz_task_switch() * LOAD p->tick_dep_mask + * + * XXX given a task picks up the dependency on schedule(), should we + * only care about tasks that are currently on the CPU instead of all + * that are on the runqueue? + * + * That is, does this want to be: task_on_cpu() / task_curr()? */ if (!sched_task_on_rq(tsk)) return; |