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-rw-r--r--kernel/sched.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 2e3545f..deb5ac8 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3728,8 +3728,13 @@ redo:
}
double_unlock_balance(this_rq, busiest);
+ /*
+ * Should not call ttwu while holding a rq->lock
+ */
+ spin_unlock(&this_rq->lock);
if (active_balance)
wake_up_process(busiest->migration_thread);
+ spin_lock(&this_rq->lock);
} else
sd->nr_balance_failed = 0;