diff options
| author | Jiri Slaby | 2012-01-30 21:14:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2012-02-02 15:10:46 -0800 |
| commit | d3bda5298aad98c7a27678bdd0dd9d008ab9e685 (patch) | |
| tree | 40b098fd53e4f811277e9e215ec477c3da2856ea /drivers | |
| parent | a50f724a432997321cabb6c9e665c28e34850f78 (diff) | |
TTY: get rid of BTM around devpts_*
devpts operations are protected by inode mutexes and dentry
refcounting. There is no need to hold BTM.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/pty.c | 6 | ||||
| -rw-r--r-- | drivers/tty/tty_io.c | 2 |
2 files changed, 3 insertions, 5 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index ddec9f3c3396..39afd045f8ef 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -54,8 +54,8 @@ static void pty_close(struct tty_struct *tty, struct file *filp) wake_up_interruptible(&tty->link->write_wait); if (tty->driver->subtype == PTY_TYPE_MASTER) { set_bit(TTY_OTHER_CLOSED, &tty->flags); - devpts_pty_kill(tty->link); tty_unlock(); + devpts_pty_kill(tty->link); tty_vhangup(tty->link); tty_lock(); } @@ -613,9 +613,7 @@ static int ptmx_open(struct inode *inode, struct file *filp) return retval; /* find a device that is not in use. */ - tty_lock(); index = devpts_new_index(inode); - tty_unlock(); if (index < 0) { retval = index; goto err_file; @@ -650,8 +648,8 @@ err_release: tty_release(inode, filp); return retval; out: - devpts_kill_index(inode, index); tty_unlock(); + devpts_kill_index(inode, index); err_file: tty_free_file(filp); return retval; diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 44736f9e61d7..ea7ebe22a16c 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1789,11 +1789,11 @@ int tty_release(struct inode *inode, struct file *filp) * the slots and preserving the termios structure. */ release_tty(tty, idx); + tty_unlock(); /* Make this pty number available for reallocation */ if (devpts) devpts_kill_index(inode, idx); - tty_unlock(); return 0; } |