From: Arnd Bergmann <arnd@arndb.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Greg KH <gregkh@suse.de>,
Frederic Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
John Kacur <jkacur@redhat.com>, Al Viro <viro@zeniv.linux.org.uk>,
Ingo Molnar <mingo@elte.hu>, Arnd Bergmann <arnd@arndb.de>
Subject: [RFC 2/9] tty: make atomic_write_lock release tty_lock
Date: Tue, 30 Mar 2010 22:56:13 +0200 [thread overview]
Message-ID: <1269982580-9361-3-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1269982580-9361-1-git-send-email-arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/char/tty_io.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 25b82eb..ef21e1d 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -915,7 +915,7 @@ int tty_write_lock(struct tty_struct *tty, int ndelay)
if (!mutex_trylock(&tty->atomic_write_lock)) {
if (ndelay)
return -EAGAIN;
- if (mutex_lock_interruptible(&tty->atomic_write_lock))
+ if (mutex_lock_interruptible_tty(&tty->atomic_write_lock))
return -ERESTARTSYS;
}
return 0;
@@ -1024,7 +1024,7 @@ out:
void tty_write_message(struct tty_struct *tty, char *msg)
{
if (tty) {
- mutex_lock(&tty->atomic_write_lock);
+ mutex_lock_tty_off(&tty->atomic_write_lock);
tty_lock();
if (tty->ops->write && !test_bit(TTY_CLOSING, &tty->flags)) {
tty_unlock();
--
1.7.0
next prev parent reply other threads:[~2010-03-30 20:58 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-30 20:56 [RFC 0/9] BKL conversion in TTY drivers Arnd Bergmann
2010-03-30 20:56 ` [RFC 1/9] tty: replace BKL with a new tty_lock Arnd Bergmann
2010-03-30 22:23 ` Frederic Weisbecker
2010-03-30 20:56 ` Arnd Bergmann [this message]
2010-03-30 20:56 ` [RFC 3/9] tty: make tty_port->mutex nest under tty_lock Arnd Bergmann
2010-03-30 20:56 ` [RFC 4/9] tty: make termios mutex " Arnd Bergmann
2010-03-30 20:56 ` [RFC 5/9] tty: make ldisc_mutex " Arnd Bergmann
2010-03-30 20:56 ` [RFC 6/9] tty: never hold tty_lock() while getting tty_mutex Arnd Bergmann
2010-03-30 20:56 ` [RFC 7/9] ppp: use big tty mutex Arnd Bergmann
2010-03-31 4:37 ` Américo Wang
2010-03-31 7:39 ` Arnd Bergmann
2010-03-30 20:56 ` [RFC 8/9] tty: release tty lock when blocking Arnd Bergmann
2010-03-30 20:56 ` [RFC 9/9] tty: implement BTM as mutex instead of BKL Arnd Bergmann
2010-03-30 22:50 ` Frederic Weisbecker
2010-03-30 22:37 ` [RFC 0/9] BKL conversion in TTY drivers Alan Cox
2010-03-31 7:57 ` Arnd Bergmann
2010-03-31 10:02 ` Alan Cox
2010-04-01 12:51 ` Arnd Bergmann
2010-04-01 14:17 ` Alan Cox
2010-04-01 15:24 ` Greg KH
2010-04-01 19:10 ` Arnd Bergmann
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