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[PATCH] rtmutex: Modify rtmutex-tester to test the setscheduler propagation

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Make test suite setscheduler calls asynchronously.  Remove the waits in the
test cases and add a new testcase to verify the correctness of the
setscheduler priority propagation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Thomas Gleixner 2006-06-27 02:55:01 -07:00 • committed by Linus Torvalds
parent e74c69f46d
commit 0bafd214e4
15 changed files with 202 additions and 49 deletions
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32
kernel/rtmutex-tester.c
View file

@ -46,7 +46,7 @@ enum test_opcodes {
RTTEST_LOCKINTNOWAIT, /* 6 Lock interruptible no wait in wakeup, data = lockindex */
RTTEST_LOCKCONT, /* 7 Continue locking after the wakeup delay */
RTTEST_UNLOCK, /* 8 Unlock, data = lockindex */
RTTEST_LOCKBKL, /* 9 Lock BKL */
RTTEST_LOCKBKL, /* 9 Lock BKL */
RTTEST_UNLOCKBKL, /* 10 Unlock BKL */
RTTEST_SIGNAL, /* 11 Signal other test thread, data = thread id */
RTTEST_RESETEVENT = 98, /* 98 Reset event counter */
@ -55,7 +55,6 @@ enum test_opcodes {
static int handle_op(struct test_thread_data *td, int lockwakeup)
{
struct sched_param schedpar;
int i, id, ret = -EINVAL;
switch(td->opcode) {
@ -63,17 +62,6 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
case RTTEST_NOP:
return 0;
case RTTEST_SCHEDOT:
schedpar.sched_priority = 0;
ret = sched_setscheduler(current, SCHED_NORMAL, &schedpar);
if (!ret)
set_user_nice(current, 0);
return ret;
case RTTEST_SCHEDRT:
schedpar.sched_priority = td->opdata;
return sched_setscheduler(current, SCHED_FIFO, &schedpar);
case RTTEST_LOCKCONT:
td->mutexes[td->opdata] = 1;
td->event = atomic_add_return(1, &rttest_event);
@ -310,9 +298,10 @@ static int test_func(void *data)
static ssize_t sysfs_test_command(struct sys_device *dev, const char *buf,
size_t count)
{
struct sched_param schedpar;
struct test_thread_data *td;
char cmdbuf[32];
int op, dat, tid;
int op, dat, tid, ret;
td = container_of(dev, struct test_thread_data, sysdev);
tid = td->sysdev.id;
@ -334,6 +323,21 @@ static ssize_t sysfs_test_command(struct sys_device *dev, const char *buf,
return -EINVAL;
switch (op) {
case RTTEST_SCHEDOT:
schedpar.sched_priority = 0;
ret = sched_setscheduler(threads[tid], SCHED_NORMAL, &schedpar);
if (ret)
return ret;
set_user_nice(current, 0);
break;
case RTTEST_SCHEDRT:
schedpar.sched_priority = dat;
ret = sched_setscheduler(threads[tid], SCHED_FIFO, &schedpar);
if (ret)
return ret;
break;
case RTTEST_SIGNAL:
send_sig(SIGHUP, threads[tid], 0);
break;