headers: smp_lock.h redux
* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT
This will make hardirq.h inclusion cheaper for every PREEMPT=n config
(which includes allmodconfig/allyesconfig, BTW)
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 9d1b4f5..6e6942c 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -22,6 +22,7 @@
#include <linux/major.h>
#include <linux/mm.h>
#include <linux/init.h>
+#include <linux/smp_lock.h>
#include <linux/sysctl.h>
#include <linux/device.h>
#include <linux/uaccess.h>