lkml.org 
[lkml]   [2013]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 17/32] tty: Bracket ldisc release with TTY_DEBUG_HANGUP messages
Date
Expected typical log output:
[ 2.437211] tty_open: opening pts1...
[ 2.443376] tty_open: opening pts5...
[ 2.447830] tty_release: ptm0 (tty count=1)...
[ 2.447849] pts0 vhangup...
[ 2.447865] tty_release: ptm0: final close
[ 2.447876] tty_release: ptm0: freeing structure...
[ 2.451634] tty_release: tty1 (tty count=1)...
[ 2.451638] tty_release: tty1: final close
[ 2.451654] tty_release: tty1: freeing structure...
[ 2.452505] tty_release: pts5 (tty count=2)...
[ 2.453029] tty_open: opening pts0...

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
drivers/tty/tty_io.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index f1303da..cfcd849 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1790,7 +1790,7 @@ int tty_release(struct inode *inode, struct file *filp)
return 0;

#ifdef TTY_DEBUG_HANGUP
- printk(KERN_DEBUG "%s: freeing tty structure...\n", __func__);
+ printk(KERN_DEBUG "%s: %s: final close\n", __func__, tty_name(tty, buf));
#endif
/*
* Ask the line discipline code to release its structures
@@ -1802,6 +1802,9 @@ int tty_release(struct inode *inode, struct file *filp)
if (o_tty)
tty_flush_works(o_tty);

+#ifdef TTY_DEBUG_HANGUP
+ printk(KERN_DEBUG "%s: %s: freeing structure...\n", __func__, tty_name(tty, buf));
+#endif
/*
* The release_tty function takes care of the details of clearing
* the slots and preserving the termios structure. The tty_unlock_pair
--
1.8.1.2


\
 
 \ /
  Last update: 2013-02-20 22:01    [W:0.827 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site