From: Jeff Dike <jdike@addtoit.com>
Date: Fri, 6 Jan 2006 08:18:58 +0000 (-0800)
Subject: [PATCH] uml: Fix flip_buf full handling
X-Git-Tag: v2.6.16-rc1~936^2~136
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=9159c9dfffe1746d58b015ceaa3b7b8e99ee9d5c;p=~emulex%2Finfiniband.git

[PATCH] uml: Fix flip_buf full handling

When the tty flip_buf is full, it's a good idea to delay the input processing
for a jiffy, rather than just scheduling the tasklet immediately.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 1bb920c0d77..36df55ad64c 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -629,7 +629,7 @@ void chan_interrupt(struct list_head *chans, struct work_struct *task,
 		do {
 			if((tty != NULL) &&
 			   (tty->flip.count >= TTY_FLIPBUF_SIZE)){
-				schedule_work(task);
+				schedule_delayed_work(task, 1);
 				goto out;
 			}
 			err = chan->ops->read(chan->fd, &c, chan->data);