tty: Prefix tty_ldisc_{lock,lock_nested,unlock} functions
tty_ldisc_lock(), tty_ldisc_unlock(), and tty_ldisc_lock_nested() are low-level aliases for the underlying lock mechanism. Rename with double underscore to allow for new, higher level functions with those names. Reviewed-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -308,19 +308,19 @@ EXPORT_SYMBOL_GPL(tty_ldisc_deref);
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static inline int __lockfunc
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tty_ldisc_lock(struct tty_struct *tty, unsigned long timeout)
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__tty_ldisc_lock(struct tty_struct *tty, unsigned long timeout)
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{
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return ldsem_down_write(&tty->ldisc_sem, timeout);
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}
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static inline int __lockfunc
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tty_ldisc_lock_nested(struct tty_struct *tty, unsigned long timeout)
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__tty_ldisc_lock_nested(struct tty_struct *tty, unsigned long timeout)
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{
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return ldsem_down_write_nested(&tty->ldisc_sem,
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LDISC_SEM_OTHER, timeout);
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}
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static inline void tty_ldisc_unlock(struct tty_struct *tty)
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static inline void __tty_ldisc_unlock(struct tty_struct *tty)
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{
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return ldsem_up_write(&tty->ldisc_sem);
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}
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@ -332,24 +332,24 @@ tty_ldisc_lock_pair_timeout(struct tty_struct *tty, struct tty_struct *tty2,
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int ret;
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if (tty < tty2) {
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ret = tty_ldisc_lock(tty, timeout);
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ret = __tty_ldisc_lock(tty, timeout);
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if (ret) {
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ret = tty_ldisc_lock_nested(tty2, timeout);
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ret = __tty_ldisc_lock_nested(tty2, timeout);
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if (!ret)
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tty_ldisc_unlock(tty);
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__tty_ldisc_unlock(tty);
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}
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} else {
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/* if this is possible, it has lots of implications */
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WARN_ON_ONCE(tty == tty2);
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if (tty2 && tty != tty2) {
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ret = tty_ldisc_lock(tty2, timeout);
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ret = __tty_ldisc_lock(tty2, timeout);
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if (ret) {
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ret = tty_ldisc_lock_nested(tty, timeout);
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ret = __tty_ldisc_lock_nested(tty, timeout);
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if (!ret)
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tty_ldisc_unlock(tty2);
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__tty_ldisc_unlock(tty2);
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}
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} else
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ret = tty_ldisc_lock(tty, timeout);
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ret = __tty_ldisc_lock(tty, timeout);
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}
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if (!ret)
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@ -370,9 +370,9 @@ tty_ldisc_lock_pair(struct tty_struct *tty, struct tty_struct *tty2)
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static void __lockfunc tty_ldisc_unlock_pair(struct tty_struct *tty,
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struct tty_struct *tty2)
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{
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tty_ldisc_unlock(tty);
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__tty_ldisc_unlock(tty);
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if (tty2)
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tty_ldisc_unlock(tty2);
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__tty_ldisc_unlock(tty2);
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}
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static void __lockfunc tty_ldisc_enable_pair(struct tty_struct *tty,
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