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authorJiri Slaby <jslaby@suse.cz>2011-07-14 14:35:14 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-23 10:34:07 -0700
commit906cbe1364d94da7cbf74c1d05e3e78b2883f661 (patch)
treefca513a03781a2d0e2ac518aab13c8d528a0468c /include/linux
parenteff4b0b9fe37873d3dc7ade0e08e6f0f89279b8b (diff)
TTY: remove tty_locked
We used it really only serial and ami_serial. The rest of the callsites were BUG/WARN_ONs to check if BTM is held. Now that we pruned tty_locked from both of the real users, we can get rid of tty_lock along with __big_tty_mutex_owner. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/tty.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 44bc0c5617e1..6d5eceb165be 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -600,8 +600,6 @@ extern long vt_compat_ioctl(struct tty_struct *tty,
/* functions for preparation of BKL removal */
extern void __lockfunc tty_lock(void) __acquires(tty_lock);
extern void __lockfunc tty_unlock(void) __releases(tty_lock);
-extern struct task_struct *__big_tty_mutex_owner;
-#define tty_locked() (current == __big_tty_mutex_owner)
/*
* wait_event_interruptible_tty -- wait for a condition with the tty lock held