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| author | Thomas Gleixner <tglx@linutronix.de> | 2006-06-27 02:54:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-27 17:32:47 -0700 |
| commit | 61a87122869b6340a63b6f9f84097d3688604b90 (patch) | |
| tree | 11d60d29763a42abd66453a920cc06bebc852427 /kernel/rtmutex_common.h | |
| parent | e7eebaf6a81b956c989f184ee4b27277c88f8afe (diff) | |
| download | blackbird-op-linux-61a87122869b6340a63b6f9f84097d3688604b90.tar.gz blackbird-op-linux-61a87122869b6340a63b6f9f84097d3688604b90.zip | |
[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>
Diffstat (limited to 'kernel/rtmutex_common.h')
| -rw-r--r-- | kernel/rtmutex_common.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/rtmutex_common.h b/kernel/rtmutex_common.h index 50eed60eb085..e068024eeffc 100644 --- a/kernel/rtmutex_common.h +++ b/kernel/rtmutex_common.h @@ -15,6 +15,28 @@ #include <linux/rtmutex.h> /* + * The rtmutex in kernel tester is independent of rtmutex debugging. We + * call schedule_rt_mutex_test() instead of schedule() for the tasks which + * belong to the tester. That way we can delay the wakeup path of those + * threads to provoke lock stealing and testing of complex boosting scenarios. + */ +#ifdef CONFIG_RT_MUTEX_TESTER + +extern void schedule_rt_mutex_test(struct rt_mutex *lock); + +#define schedule_rt_mutex(_lock) \ + do { \ + if (!(current->flags & PF_MUTEX_TESTER)) \ + schedule(); \ + else \ + schedule_rt_mutex_test(_lock); \ + } while (0) + +#else +# define schedule_rt_mutex(_lock) schedule() +#endif + +/* * This is the control structure for tasks blocked on a rt_mutex, * which is allocated on the kernel stack on of the blocked task. * |
