35 lines
926 B
Diff
35 lines
926 B
Diff
From: Ingo Molnar <mingo@elte.hu>
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Date: Fri, 3 Jul 2009 08:30:01 -0500
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Subject: serial: 8250: Call flush_to_ldisc when the irq is threaded
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.10/patches-3.10.6-rt3.tar.xz
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Signed-off-by: Ingo Molnar <mingo@elte.hu>
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---
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drivers/tty/tty_buffer.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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--- a/drivers/tty/tty_buffer.c
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+++ b/drivers/tty/tty_buffer.c
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@@ -517,10 +517,15 @@ void tty_flip_buffer_push(struct tty_por
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buf->tail->commit = buf->tail->used;
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spin_unlock_irqrestore(&buf->lock, flags);
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+#ifndef CONFIG_PREEMPT_RT_FULL
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if (port->low_latency)
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flush_to_ldisc(&buf->work);
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else
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schedule_work(&buf->work);
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+#else
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+ flush_to_ldisc(&buf->work);
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+#endif
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+
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}
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EXPORT_SYMBOL(tty_flip_buffer_push);
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@@ -545,4 +550,3 @@ void tty_buffer_init(struct tty_port *po
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buf->memory_used = 0;
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INIT_WORK(&buf->work, flush_to_ldisc);
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}
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-
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