[PATCH] pi-futex: rt mutex tester

RT-mutex tester: scriptable tester for rt mutexes, which allows userspace
scripting of mutex unit-tests (and dynamic tests as well), using the actual
rt-mutex implementation of the kernel.

[akpm@osdl.org: fixlet]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

scripts/rt-tester/t2-l1-pi.tst

@@ -0,0 +1,84 @@
+#
+# RT-Mutex test
+#
+# Op: C(ommand)/T(est)/W(ait)
+# |  opcode
+# |  |     threadid: 0-7
+# |  |     |  opcode argument
+# |  |     |  |
+# C: lock: 0: 0
+#
+# Commands
+#
+# opcode	opcode argument
+# schedother	nice value
+# schedfifo	priority
+# lock		lock nr (0-7)
+# locknowait	lock nr (0-7)
+# lockint	lock nr (0-7)
+# lockintnowait	lock nr (0-7)
+# lockcont	lock nr (0-7)
+# unlock	lock nr (0-7)
+# lockbkl	lock nr (0-7)
+# unlockbkl	lock nr (0-7)
+# signal	0
+# reset		0
+# resetevent	0
+#
+# Tests / Wait
+#
+# opcode	opcode argument
+#
+# prioeq	priority
+# priolt	priority
+# priogt	priority
+# nprioeq	normal priority
+# npriolt	normal priority
+# npriogt	normal priority
+# locked	lock nr (0-7)
+# blocked	lock nr (0-7)
+# blockedwake	lock nr (0-7)
+# unlocked	lock nr (0-7)
+# lockedbkl	dont care
+# blockedbkl	dont care
+# unlockedbkl	dont care
+# opcodeeq	command opcode or number
+# opcodelt	number
+# opcodegt	number
+# eventeq	number
+# eventgt	number
+# eventlt	number
+
+#
+# 2 threads 1 lock with priority inversion
+#
+C: resetevent:		0: 	0
+W: opcodeeq:		0: 	0
+
+# Set schedulers
+C: schedother:		0: 	0
+W: opcodeeq:		0: 	0
+C: schedfifo:		1: 	80
+W: opcodeeq:		1: 	0
+
+# T0 lock L0
+C: locknowait:		0: 	0
+W: locked:		0: 	0
+
+# T1 lock L0
+C: locknowait:		1: 	0
+W: blocked:		1: 	0
+T: prioeq:		0: 	80
+
+# T0 unlock L0
+C: unlock:		0: 	0
+W: locked:		1: 	0
+
+# Verify T1
+W: unlocked:		0: 	0
+T: priolt:		0: 	1
+
+# Unlock and exit
+C: unlock:		1: 	0
+W: unlocked:		1: 	0
+