diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 7 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 10 | ||||
| -rw-r--r-- | kernel/sysctl.c | 9 |
3 files changed, 16 insertions, 10 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index cecbb64be05f..fd7b25e90079 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7134,10 +7134,6 @@ void set_curr_task(int cpu, struct task_struct *p) #endif -#ifdef CONFIG_RT_GROUP_SCHED -#else /* !CONFIG_RT_GROUP_SCHED */ -#endif /* CONFIG_RT_GROUP_SCHED */ - #ifdef CONFIG_CGROUP_SCHED /* task_group_lock serializes the addition/removal of task groups */ static DEFINE_SPINLOCK(task_group_lock); @@ -7246,9 +7242,6 @@ void sched_move_task(struct task_struct *tsk) } #endif /* CONFIG_CGROUP_SCHED */ -#ifdef CONFIG_FAIR_GROUP_SCHED -#endif - #if defined(CONFIG_RT_GROUP_SCHED) || defined(CONFIG_CFS_BANDWIDTH) static unsigned long to_ratio(u64 period, u64 runtime) { diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 8e42de9105f8..84adb2d66cbd 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3130,8 +3130,10 @@ task_hot(struct task_struct *p, u64 now, struct sched_domain *sd) } #define LBF_ALL_PINNED 0x01 -#define LBF_NEED_BREAK 0x02 -#define LBF_ABORT 0x04 +#define LBF_NEED_BREAK 0x02 /* clears into HAD_BREAK */ +#define LBF_HAD_BREAK 0x04 +#define LBF_HAD_BREAKS 0x0C /* count HAD_BREAKs overflows into ABORT */ +#define LBF_ABORT 0x10 /* * can_migrate_task - may task p from runqueue rq be migrated to this_cpu? @@ -4508,7 +4510,9 @@ redo: goto out_balanced; if (lb_flags & LBF_NEED_BREAK) { - lb_flags &= ~LBF_NEED_BREAK; + lb_flags += LBF_HAD_BREAK - LBF_NEED_BREAK; + if (lb_flags & LBF_ABORT) + goto out_balanced; goto redo; } diff --git a/kernel/sysctl.c b/kernel/sysctl.c index ae2719643854..f487f257e05e 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -803,6 +803,15 @@ static struct ctl_table kern_table[] = { .mode = 0644, .proc_handler = proc_dointvec, }, +#ifdef CONFIG_DEBUG_STACKOVERFLOW + { + .procname = "panic_on_stackoverflow", + .data = &sysctl_panic_on_stackoverflow, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, +#endif { .procname = "bootloader_type", .data = &bootloader_type, |