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    Subject[PATCH 13/15] Make /proc/tty/drivers use seq_list_xxx helpers
    Simple and stupid like some previous ones. Just use new API.

    Signed-off-by: Pavel Emelianov <xemul@openvz.org>

    ---

    diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
    index b3a473b..2284622 100644
    --- a/fs/proc/proc_tty.c
    +++ b/fs/proc/proc_tty.c
    @@ -69,7 +69,7 @@ static void show_tty_range(struct seq_fi

    static int show_tty_driver(struct seq_file *m, void *v)
    {
    - struct tty_driver *p = v;
    + struct tty_driver *p = list_entry(v, struct tty_driver, tty_drivers);
    dev_t from = MKDEV(p->major, p->minor_start);
    dev_t to = from + p->num;

    @@ -106,22 +106,13 @@ static int show_tty_driver(struct seq_fi
    /* iterator */
    static void *t_start(struct seq_file *m, loff_t *pos)
    {
    - struct list_head *p;
    - loff_t l = *pos;
    -
    mutex_lock(&tty_mutex);
    - list_for_each(p, &tty_drivers)
    - if (!l--)
    - return list_entry(p, struct tty_driver, tty_drivers);
    - return NULL;
    + return seq_list_start(&tty_drivers, *pos);
    }

    static void *t_next(struct seq_file *m, void *v, loff_t *pos)
    {
    - struct list_head *p = ((struct tty_driver *)v)->tty_drivers.next;
    - (*pos)++;
    - return p==&tty_drivers ? NULL :
    - list_entry(p, struct tty_driver, tty_drivers);
    + return seq_list_next(v, &tty_drivers, pos);
    }

    static void t_stop(struct seq_file *m, void *v)
    -
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