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| author | Kirill Tkhai <ktkhai@parallels.com> | 2014-06-25 12:19:48 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-07-05 11:17:44 +0200 |
| commit | 99b625670f1447ecf0739161efbe7f2f43c0e0b6 (patch) | |
| tree | 81106175ac54b685be1622fee04c934f71783bc6 /kernel/sched | |
| parent | 0e59bdaea75f12a7d7c03672f4ac22c0119a1bc0 (diff) | |
| download | linux-99b625670f1447ecf0739161efbe7f2f43c0e0b6.tar.gz linux-99b625670f1447ecf0739161efbe7f2f43c0e0b6.tar.bz2 linux-99b625670f1447ecf0739161efbe7f2f43c0e0b6.zip | |
sched/rt: Enqueue just unthrottled rt_rq back on the stack in __disable_runtime()
Make rt_rq available for pick_next_task(). Otherwise, their tasks
stay prisoned long time till dead cpu becomes alive again.
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
CC: Konstantin Khorenko <khorenko@parallels.com>
CC: Ben Segall <bsegall@google.com>
CC: Paul Turner <pjt@google.com>
CC: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1403684388.3462.43.camel@tkhai
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/rt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index a49083192c64..671a8b5fdb6f 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -740,6 +740,9 @@ balanced: rt_rq->rt_throttled = 0; raw_spin_unlock(&rt_rq->rt_runtime_lock); raw_spin_unlock(&rt_b->rt_runtime_lock); + + /* Make rt_rq available for pick_next_task() */ + sched_rt_rq_enqueue(rt_rq); } } |