tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 400fd9ccb52e01bf78acae2bbc1710923a15f033 commit: 433c0b72564239cf3086f563d5ca32a10e4ffd3f [2417/2417] sched/fair: Count the number of tasks marked as steal_task on cfs_rq config: x86_64-randconfig-015-20241112 (https://download.01.org/0day-ci/archive/20241113/202411130044.gkUMo98D-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241113/202411130044.gkUMo98D-lkp@i...) 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/202411130044.gkUMo98D-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from kernel/sched/fair.c:23: In file included from kernel/sched/sched.h:39: In file included from include/linux/blkdev.h:9: In file included from include/linux/genhd.h:20: In file included from include/linux/blk_types.h:11: In file included from include/linux/bvec.h:14: In file included from include/linux/mm.h:1587: include/linux/vmstat.h:417:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 417 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 418 | item]; | ~~~~ include/linux/vmstat.h:424:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 424 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 425 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:436:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 436 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 437 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:445:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 445 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 446 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ In file included from kernel/sched/fair.c:23: kernel/sched/sched.h:1864:15: warning: cast from 'void (*)(struct rq *)' to 'void (*)(struct callback_head *)' converts to incompatible function type [-Wcast-function-type-strict] 1864 | head->func = (void (*)(struct callback_head *))func; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

...

kernel/sched/fair.c:4499:43: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 4499 | (rq->cfs.h_nr_running < 2 || rq->cfs.steal_h_nr_running == 0)) | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:4525:36: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 4525 | if (group_steal_used() && rq->cfs.steal_h_nr_running < 1) | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:6670:12: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 6670 | cfs_rq->steal_h_nr_running++; | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:6694:12: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 6694 | cfs_rq->steal_h_nr_running++; | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:6795:12: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 6795 | cfs_rq->steal_h_nr_running--; | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:6831:12: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 6831 | cfs_rq->steal_h_nr_running--; | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:13229:29: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 13229 | if (tg_used && src_rq->cfs.steal_h_nr_running < 1) | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:13241:30: error: no member named 'steal_h_nr_running' in 'struct cfs_rq'; did you mean 'idle_h_nr_running'? 13241 | (tg_used && src_rq->cfs.steal_h_nr_running < 1)) | ^~~~~~~~~~~~~~~~~~ | idle_h_nr_running kernel/sched/sched.h:632:16: note: 'idle_h_nr_running' declared here 632 | unsigned int idle_h_nr_running; /* SCHED_IDLE */ | ^ kernel/sched/fair.c:13411:6: warning: no previous prototype for function 'task_vruntime_update' [-Wmissing-prototypes] 13411 | void task_vruntime_update(struct rq *rq, struct task_struct *p, bool in_fi) | ^ kernel/sched/fair.c:13411:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 13411 | void task_vruntime_update(struct rq *rq, struct task_struct *p, bool in_fi) | ^ | static 7 warnings and 8 errors generated.

vim +4499 kernel/sched/fair.c 4485 4486 static void overload_clear(struct rq *rq) 4487 { 4488 struct sparsemask *overload_cpus; 4489 unsigned long time; 4490 bool need_clear = false; 4491 4492 if (!steal_enabled()) 4493 return; 4494 4495 if (!group_steal_used() && rq->cfs.h_nr_running >= 2) 4496 return; 4497 4498 if (group_steal_used() &&

4499 (rq->cfs.h_nr_running < 2 || rq->cfs.steal_h_nr_running == 0)) 4500 need_clear = true; 4501 4502 if (!need_clear) 4503 return; 4504 4505 time = schedstat_start_time(); 4506 rcu_read_lock(); 4507 overload_cpus = rcu_dereference(rq->cfs_overload_cpus); 4508 if (overload_cpus) 4509 sparsemask_clear_elem(overload_cpus, rq->cpu); 4510 rcu_read_unlock(); 4511 schedstat_end_time(rq, time); 4512 } 4513

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