[ Sasha's backport helper bot ]
Hi,
✅ All tests passed successfully. No issues detected. No action required from the submitter.
The upstream commit SHA1 provided is correct: ed4fb6d7ef68111bb539283561953e5c6e9a6e38
Status in newer kernel trees: 6.13.y | Present (exact SHA1) 6.12.y | Present (exact SHA1) 6.6.y | Not found
Note: The patch differs from the upstream commit: --- 1: ed4fb6d7ef681 ! 1: a4d3916d07d4c hrtimer: Use and report correct timerslack values for realtime tasks @@ Metadata ## Commit message ## hrtimer: Use and report correct timerslack values for realtime tasks
+ commit ed4fb6d7ef68111bb539283561953e5c6e9a6e38 upstream. + The timerslack_ns setting is used to specify how much the hardware timers should be delayed, to potentially dispatch multiple timers in a single interrupt. This is a performance optimization. Timers of @@ fs/select.c: u64 select_estimate_accuracy(struct timespec64 *tv) }
- ## kernel/sched/syscalls.c ## -@@ kernel/sched/syscalls.c: static void __setscheduler_params(struct task_struct *p, + ## kernel/sched/core.c ## +@@ kernel/sched/core.c: static void __setscheduler_params(struct task_struct *p, else if (fair_policy(policy)) p->static_prio = NICE_TO_PRIO(attr->sched_nice);
@@ kernel/time/hrtimer.c: long hrtimer_nanosleep(ktime_t rqtp, const enum hrtimer_m - u64 slack; - - slack = current->timer_slack_ns; -- if (rt_task(current)) +- if (dl_task(current) || rt_task(current)) - slack = 0;
hrtimer_init_sleeper_on_stack(&t, clockid, mode); ---
Results of testing on various branches:
| Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | stable/linux-6.1.y | Success | Success |