Merge 'Linux v3.0' into Litmus

Some notes:
* Litmus^RT scheduling class is the topmost scheduling class
  (above stop_sched_class).
* scheduler_ipi() function (e.g., in smp_reschedule_interrupt())
  may increase IPI latencies.
* Added path into schedule() to quickly re-evaluate scheduling
  decision without becoming preemptive again. This used to be
  a standard path before the removal of BKL.

Conflicts:
	Makefile
	arch/arm/kernel/calls.S
	arch/arm/kernel/smp.c
	arch/x86/include/asm/unistd_32.h
	arch/x86/kernel/smp.c
	arch/x86/kernel/syscall_table_32.S
	include/linux/hrtimer.h
	kernel/printk.c
	kernel/sched.c
	kernel/sched_fair.c

1 files changed, 10 insertions, 4 deletions

diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 55675b1efb28..b29f70b2ecae 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -191,7 +191,8 @@ static inline void usb_set_serial_data(struct usb_serial *serial, void *data)
  * @id_table: pointer to a list of usb_device_id structures that define all
  *      of the devices this structure can support.
  * @num_ports: the number of different ports this device will have.
- * @bulk_in_size: bytes to allocate for bulk-in buffer (0 = end-point size)
+ * @bulk_in_size: minimum number of bytes to allocate for bulk-in buffer
+ *      (0 = end-point size)
  * @bulk_out_size: bytes to allocate for bulk-out buffer (0 = end-point size)
  * @calc_num_ports: pointer to a function to determine how many ports this
  *      device has dynamically.  It will be called after the probe()
@@ -260,7 +261,7 @@ struct usb_serial_driver {
                         const unsigned char *buf, int count);
         /* Called only by the tty layer */
         int  (*write_room)(struct tty_struct *tty);
-        int  (*ioctl)(struct tty_struct *tty, struct file *file,
+        int  (*ioctl)(struct tty_struct *tty,
                       unsigned int cmd, unsigned long arg);
         void (*set_termios)(struct tty_struct *tty,
                         struct usb_serial_port *port, struct ktermios *old);
@@ -268,9 +269,11 @@ struct usb_serial_driver {
         int  (*chars_in_buffer)(struct tty_struct *tty);
         void (*throttle)(struct tty_struct *tty);
         void (*unthrottle)(struct tty_struct *tty);
-        int  (*tiocmget)(struct tty_struct *tty, struct file *file);
-        int  (*tiocmset)(struct tty_struct *tty, struct file *file,
+        int  (*tiocmget)(struct tty_struct *tty);
+        int  (*tiocmset)(struct tty_struct *tty,
                          unsigned int set, unsigned int clear);
+        int  (*get_icount)(struct tty_struct *tty,
+                        struct serial_icounter_struct *icount);
         /* Called by the tty layer for port level work. There may or may not
            be an attached tty at this point */
         void (*dtr_rts)(struct usb_serial_port *port, int on);
@@ -345,6 +348,9 @@ extern int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
 extern int usb_serial_handle_sysrq_char(struct usb_serial_port *port,
                                         unsigned int ch);
 extern int usb_serial_handle_break(struct usb_serial_port *port);
+extern void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port,
+                                         struct tty_struct *tty,
+                                         unsigned int status);
 
 
 extern int usb_serial_bus_register(struct usb_serial_driver *device);