forked from luck/tmp_suning_uos_patched
aa7f67304d
When the system has multiple domains do_sched_rt_period_timer() can run on any CPU and may iterate over all rt_rq in cpu_online_mask. This means when balance_runtime() is run for a given rt_rq that rt_rq may be in a different rd than the current processor. Thus if we use smp_processor_id() to get rd in do_balance_runtime() we may borrow runtime from a rt_rq that is not part of our rd. This changes do_balance_runtime to get the rd from the passed in rt_rq ensuring that we borrow runtime only from the correct rd for the given rt_rq. This fixes a BUG at kernel/sched/rt.c:687! in __disable_runtime when we try reclaim runtime lent to other rt_rq but runtime has been lent to a rt_rq in another rd. Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Mike Galbraith <bitbucket@online.de> Cc: peterz@infradead.org Cc: <stable@kernel.org> Link: http://lkml.kernel.org/r/1358186131-29494-1-git-send-email-sbohrer@rgmadvisors.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| debug | ||
| events | ||
| gcov | ||
| irq | ||
| power | ||
| sched | ||
| time | ||
| trace | ||
| .gitignore | ||
| acct.c | ||
| async.c | ||
| audit_tree.c | ||
| audit_watch.c | ||
| audit.c | ||
| audit.h | ||
| auditfilter.c | ||
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| bounds.c | ||
| capability.c | ||
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| compat.c | ||
| configs.c | ||
| context_tracking.c | ||
| cpu_pm.c | ||
| cpu.c | ||
| cpuset.c | ||
| crash_dump.c | ||
| cred.c | ||
| delayacct.c | ||
| dma.c | ||
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| exit.c | ||
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| fork.c | ||
| freezer.c | ||
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| irq_work.c | ||
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| kcmp.c | ||
| Kconfig.freezer | ||
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| kexec.c | ||
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| kmod.c | ||
| kprobes.c | ||
| ksysfs.c | ||
| kthread.c | ||
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| lockdep_internals.h | ||
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| Makefile | ||
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| module.c | ||
| mutex-debug.c | ||
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| mutex.c | ||
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| panic.c | ||
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| pid.c | ||
| posix-cpu-timers.c | ||
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| rcu.h | ||
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| relay.c | ||
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| resource.c | ||
| rtmutex_common.h | ||
| rtmutex-debug.c | ||
| rtmutex-debug.h | ||
| rtmutex-tester.c | ||
| rtmutex.c | ||
| rtmutex.h | ||
| rwsem.c | ||
| seccomp.c | ||
| semaphore.c | ||
| signal.c | ||
| smp.c | ||
| smpboot.c | ||
| smpboot.h | ||
| softirq.c | ||
| spinlock.c | ||
| srcu.c | ||
| stacktrace.c | ||
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| sys.c | ||
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| test_kprobes.c | ||
| time.c | ||
| timeconst.pl | ||
| timer.c | ||
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| uid16.c | ||
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| user.c | ||
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