diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2012-10-18 22:26:27 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-23 01:50:12 +0200 |
| commit | 8fcbaa2b7f5b70dba9ed1c7f91d0a270ce752e2c (patch) | |
| tree | 9f85c118012c263aaab73ae1d76fb1df1072b171 /fs/devpts/inode.c | |
| parent | tty: prevent unnecessary work queue lock checking on flip buffer copy (diff) | |
| download | linux-8fcbaa2b7f5b70dba9ed1c7f91d0a270ce752e2c.tar.xz linux-8fcbaa2b7f5b70dba9ed1c7f91d0a270ce752e2c.zip | |
TTY: devpts, don't care about TTY in devpts_get_tty
The goal is to stop setting and using tty->driver_data in devpts code.
It should be used solely by the driver's code, pty in this case.
First, here we remove TTY from devpts_get_tty and rename it to
devpts_get_priv. Note we do not remove type safety, we just shift the
[implicit] (void *) cast one layer up.
index was unused in devpts_get_tty, so remove that from the prototype
too.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/devpts/inode.c')
| -rw-r--r-- | fs/devpts/inode.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index 14afbabe6546..47965807884d 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -593,10 +593,10 @@ int devpts_pty_new(struct inode *ptmx_inode, struct tty_struct *tty) return ret; } -struct tty_struct *devpts_get_tty(struct inode *pts_inode, int number) +void *devpts_get_priv(struct inode *pts_inode) { struct dentry *dentry; - struct tty_struct *tty; + void *priv = NULL; BUG_ON(pts_inode->i_rdev == MKDEV(TTYAUX_MAJOR, PTMX_MINOR)); @@ -605,13 +605,12 @@ struct tty_struct *devpts_get_tty(struct inode *pts_inode, int number) if (!dentry) return NULL; - tty = NULL; if (pts_inode->i_sb->s_magic == DEVPTS_SUPER_MAGIC) - tty = (struct tty_struct *)pts_inode->i_private; + priv = pts_inode->i_private; dput(dentry); - return tty; + return priv; } void devpts_pty_kill(struct tty_struct *tty) |