* [boqun:rust-sync-old 8/19] kernel/sched/fair.c:7361:76: error: 'class_raw_spinlock_irqsave_t' has no member named 'flags'
@ 2026-07-01 13:09 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-07-01 13:09 UTC (permalink / raw)
To: Boqun Feng; +Cc: oe-kbuild-all
tree: https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git rust-sync-old
head: 2d07a3ed986f2e6f7f1c3b7f629bd737d5aac43b
commit: 5d47ed5195ba70f4e725ee56cf4bb5b4c058c4d9 [8/19] locking: Switch to _irq_{disable,enable}() variants in cleanup guards
config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20260701/202607012020.u2JREjhS-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260701/202607012020.u2JREjhS-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202607012020.u2JREjhS-lkp@intel.com/
All errors (new ones prefixed by >>):
kernel/sched/fair.c: In function 'sched_cfs_period_timer':
>> kernel/sched/fair.c:7361:76: error: 'class_raw_spinlock_irqsave_t' has no member named 'flags'
7361 | idle = do_sched_cfs_period_timer(cfs_b, overrun, cfsb_guard.flags);
| ^
vim +7361 kernel/sched/fair.c
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7345
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7346 static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7347 {
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7348 struct cfs_bandwidth *cfs_b =
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7349 container_of(timer, struct cfs_bandwidth, period_timer);
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7350 int overrun;
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7351 int idle = 0;
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7352 int count = 0;
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7353
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 7354 CLASS(raw_spinlock_irqsave, cfsb_guard)(&cfs_b->lock);
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 7355
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7356 for (;;) {
77a4d1a1b9a122 kernel/sched/fair.c Peter Zijlstra 2015-04-15 7357 overrun = hrtimer_forward_now(timer, cfs_b->period);
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7358 if (!overrun)
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7359 break;
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7360
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 @7361 idle = do_sched_cfs_period_timer(cfs_b, overrun, cfsb_guard.flags);
5a6d6a6ccb5f48 kernel/sched/fair.c Huaixin Chang 2020-04-20 7362
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7363 if (++count > 3) {
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7364 u64 new, old = ktime_to_ns(cfs_b->period);
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7365
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7366 /*
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7367 * Grow period by a factor of 2 to avoid losing precision.
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7368 * Precision loss in the quota/period ratio can cause __cfs_schedulable
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7369 * to fail.
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7370 */
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7371 new = old * 2;
5bc34be478d09c kernel/sched/fair.c Tejun Heo 2025-06-13 7372 if (new < max_bw_quota_period_us * NSEC_PER_USEC) {
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7373 cfs_b->period = ns_to_ktime(new);
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7374 cfs_b->quota *= 2;
f4183717b370ad kernel/sched/fair.c Huaixin Chang 2021-06-21 7375 cfs_b->burst *= 2;
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7376
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7377 pr_warn_ratelimited(
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7378 "cfs_period_timer[cpu%d]: period too short, scaling up (new cfs_period_us = %lld, cfs_quota_us = %lld)\n",
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7379 smp_processor_id(),
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7380 div_u64(new, NSEC_PER_USEC),
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7381 div_u64(cfs_b->quota, NSEC_PER_USEC));
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7382 } else {
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7383 pr_warn_ratelimited(
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7384 "cfs_period_timer[cpu%d]: period too short, but cannot scale up without losing precision (cfs_period_us = %lld, cfs_quota_us = %lld)\n",
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7385 smp_processor_id(),
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7386 div_u64(old, NSEC_PER_USEC),
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7387 div_u64(cfs_b->quota, NSEC_PER_USEC));
4929a4e6faa0f1 kernel/sched/fair.c Xuewei Zhang 2019-10-03 7388 }
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7389
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7390 /* reset count so we don't come right back in here */
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7391 count = 0;
2e8e19226398db kernel/sched/fair.c Phil Auld 2019-03-19 7392 }
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7393 }
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 7394
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 7395 if (idle) {
4cfafd3082afc7 kernel/sched/fair.c Peter Zijlstra 2015-05-14 7396 cfs_b->period_active = 0;
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 7397 return HRTIMER_NORESTART;
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 7398 }
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7399
1abbecd1d2d2fd kernel/sched/fair.c K Prateek Nayak 2026-06-02 7400 return HRTIMER_RESTART;
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7401 }
029632fbb7b7c9 kernel/sched_fair.c Peter Zijlstra 2011-10-25 7402
:::::: The code at line 7361 was first introduced by commit
:::::: 1abbecd1d2d2fdd96e52f541f07ee2b163631bee sched/fair: Convert cfs bandwidth throttling to use guards
:::::: TO: K Prateek Nayak <kprateek.nayak@amd.com>
:::::: CC: Peter Zijlstra <peterz@infradead.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-07-01 13:09 [boqun:rust-sync-old 8/19] kernel/sched/fair.c:7361:76: error: 'class_raw_spinlock_irqsave_t' has no member named 'flags' kernel test robot
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