[PATCH] memory page_alloc zonelist caching speedup

[linux-2.6-omap-h63xx.git] / include / linux / generic_serial.h

diff --git a/include/linux/generic_serial.h b/include/linux/generic_serial.h
index 0abe9d9a0069d9b17e4771a9a5aaffb394402556..e2538456195568141da767ace0da9ec5abe08a3d 100644 (file)
--- a/include/linux/generic_serial.h
+++ b/include/linux/generic_serial.h
@@ -12,6 +12,9 @@
 #ifndef GENERIC_SERIAL_H
 #define GENERIC_SERIAL_H
 
+#ifdef __KERNEL__
+#include <linux/mutex.h>
+
 struct real_driver {
   void                    (*disable_tx_interrupts) (void *);
   void                    (*enable_tx_interrupts) (void *);
@@ -34,7 +37,7 @@ struct gs_port {
   int                     xmit_head;
   int                     xmit_tail;
   int                     xmit_cnt;
-  struct semaphore        port_write_sem;
+  struct mutex            port_write_mutex;
   int                     flags;
   wait_queue_head_t       open_wait;
   wait_queue_head_t       close_wait;
@@ -52,6 +55,7 @@ struct gs_port {
   spinlock_t              driver_lock;
 };
 
+#endif /* __KERNEL__ */
 
 /* Flags */
 /* Warning: serial.h defines some ASYNC_ flags, they say they are "only"
@@ -73,7 +77,7 @@ struct gs_port {
 #define GS_DEBUG_FLOW    0x00000020
 #define GS_DEBUG_WRITE   0x00000040
 
-
+#ifdef __KERNEL__
 void gs_put_char(struct tty_struct *tty, unsigned char ch);
 int  gs_write(struct tty_struct *tty, 
              const unsigned char *buf, int count);
@@ -92,5 +96,5 @@ int  gs_init_port(struct gs_port *port);
 int  gs_setserial(struct gs_port *port, struct serial_struct __user *sp);
 int  gs_getserial(struct gs_port *port, struct serial_struct __user *sp);
 void gs_got_break(struct gs_port *port);
-
+#endif /* __KERNEL__ */
 #endif