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-rw-r--r--kernel/sched.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 64f93d18e4d4..ce2a3406ec01 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4285,16 +4285,6 @@ need_resched:
if (to_wakeup)
try_to_wake_up_local(to_wakeup);
}
-
- /*
- * If we are going to sleep and we have plugged IO
- * queued, make sure to submit it to avoid deadlocks.
- */
- if (blk_needs_flush_plug(prev)) {
- raw_spin_unlock(&rq->lock);
- blk_schedule_flush_plug(prev);
- raw_spin_lock(&rq->lock);
- }
}
switch_count = &prev->nvcsw;
}
@@ -4333,8 +4323,23 @@ need_resched:
goto need_resched;
}
+static inline void sched_submit_work(struct task_struct *tsk)
+{
+ if (!tsk->state)
+ return;
+ /*
+ * If we are going to sleep and we have plugged IO queued,
+ * make sure to submit it to avoid deadlocks.
+ */
+ if (blk_needs_flush_plug(tsk))
+ blk_schedule_flush_plug(tsk);
+}
+
asmlinkage void schedule(void)
{
+ struct task_struct *tsk = current;
+
+ sched_submit_work(tsk);
__schedule();
}
EXPORT_SYMBOL(schedule);