[PATCH v4 24/24] n_tty: Queue buffer work on any available cpu
From: Peter Hurley <hidden>
Date: 2013-06-15 13:23:25
Also in:
lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Scheduling buffer work on the same cpu as the read() thread limits the parallelism now possible between the receive_buf path and the n_tty_read() path. Signed-off-by: Peter Hurley <redacted> --- drivers/tty/n_tty.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 072e52f..2321d6a 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c@@ -198,7 +198,7 @@ static void n_tty_set_room(struct tty_struct *tty) */ WARN_RATELIMIT(test_bit(TTY_LDISC_HALTED, &tty->flags), "scheduling buffer work for halted ldisc\n"); - schedule_work(&tty->port->buf.work); + queue_work(system_unbound_wq, &tty->port->buf.work); } }
--
1.8.1.2