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, 21 insertions, 0 deletions

diff --git a/include/linux/i2c/ds620.h b/include/linux/i2c/ds620.h
new file mode 100644
index 000000000000..736bb87ac0fc
--- /dev/null
+++ b/include/linux/i2c/ds620.h
@@ -0,0 +1,21 @@
+#ifndef _LINUX_DS620_H
+#define _LINUX_DS620_H
+
+#include <linux/types.h>
+#include <linux/i2c.h>
+
+/* platform data for the DS620 temperature sensor and thermostat */
+
+struct ds620_platform_data {
+        /*
+         *  Thermostat output pin PO mode:
+         *  0 = always low (default)
+         *  1 = PO_LOW
+         *  2 = PO_HIGH
+         *
+         * (see Documentation/hwmon/ds620)
+         */
+        int pomode;
+};
+
+#endif /* _LINUX_DS620_H */