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Message-Id: <1360095638-6624-23-git-send-email-peter@hurleysoftware.com> Date: Tue, 5 Feb 2013 15:20:37 -0500 From: Peter Hurley <peter@...leysoftware.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Alan Cox <alan@...ux.intel.com>, Jiri Slaby <jslaby@...e.cz>, Sasha Levin <levinsasha928@...il.com>, Sebastian Andrzej Siewior <bigeasy@...utronix.de> Cc: linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org, Ilya Zykov <ilya@...x.ru>, Dave Jones <davej@...hat.com>, Peter Hurley <peter@...leysoftware.com> Subject: [PATCH v3 22/23] tty: Bracket ldisc release with TTY_DEBUG_HANGUP messages 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@...leysoftware.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 25494fd..f96bf54 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1793,7 +1793,7 @@ 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 @@ -1805,6 +1805,9 @@ 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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