update test

[lttv.git] / trunk / tests / kernel / test-wbias-rwlock.c

diff --git a/trunk/tests/kernel/test-wbias-rwlock.c b/trunk/tests/kernel/test-wbias-rwlock.c
index 8e77216d9f7441a2544328c32962d70b89082c1c..5c7dde65f797d635b9568833f3f39e1d27eaf25a 100644 (file)
--- a/trunk/tests/kernel/test-wbias-rwlock.c
+++ b/trunk/tests/kernel/test-wbias-rwlock.c
@@ -6,7 +6,6 @@
 #include <linux/proc_fs.h>
 #include <linux/sched.h>
 #include <linux/timex.h>
-#include <linux/wbias-rwlock.h>
 #include <linux/kthread.h>
 #include <linux/delay.h>
 #include <linux/hardirq.h>
@@ -14,6 +13,7 @@
 #include <linux/percpu.h>
 #include <linux/spinlock.h>
 #include <asm/ptrace.h>
+#include <linux/wbias-rwlock.h>
 
 /* Test with no contention duration, in seconds */
 #define SINGLE_WRITER_TEST_DURATION 10
@@ -26,7 +26,6 @@
 #define NR_VARS 100
 #define NR_WRITERS 2
 #define NR_TRYLOCK_WRITERS 1
-#define NR_PREADERS 2
 #define NR_NPREADERS 2
 #define NR_TRYLOCK_READERS 1
 
@@ -50,6 +49,19 @@
 #define NR_TRYLOCK_INTERRUPT_READERS 0
 #endif
 
+/*
+ * 1 : test with thread preemption readers.
+ * 0 : test only with non-preemptable thread readers.
+ */
+#define TEST_PREEMPT 1
+
+#if (TEST_PREEMPT)
+#define NR_PREADERS 2
+#else
+#define NR_PREADERS 0
+#endif
+
+
 /*
  * Writer iteration delay, in us. 0 for busy loop. Caution : writers can
  * starve readers.
@@ -121,9 +133,26 @@ static DEFINE_WBIAS_RWLOCK(wbiasrwlock);
 #if (TEST_INTERRUPTS)
 #define wrap_write_lock()      wbias_write_lock_irq(&wbiasrwlock)
 #define wrap_write_unlock()    wbias_write_unlock_irq(&wbiasrwlock)
+#define wrap_write_trylock_else_subscribe()    \
+       wbias_write_trylock_irq_else_subscribe(&wbiasrwlock)
+#define wrap_write_trylock_subscribed()                \
+       wbias_write_trylock_irq_subscribed(&wbiasrwlock)
 #else
+#if (TEST_PREEMPT)
 #define wrap_write_lock()      wbias_write_lock(&wbiasrwlock)
 #define wrap_write_unlock()    wbias_write_unlock(&wbiasrwlock)
+#define wrap_write_trylock_else_subscribe()    \
+       wbias_write_trylock_else_subscribe(&wbiasrwlock)
+#define wrap_write_trylock_subscribed()                \
+       wbias_write_trylock_subscribed(&wbiasrwlock)
+#else
+#define wrap_write_lock()      wbias_write_lock_atomic(&wbiasrwlock)
+#define wrap_write_unlock()    wbias_write_unlock_atomic(&wbiasrwlock)
+#define wrap_write_trylock_else_subscribe()    \
+       wbias_write_trylock_atomic_else_subscribe(&wbiasrwlock)
+#define wrap_write_trylock_subscribed()                \
+       wbias_write_trylock_atomic_subscribed(&wbiasrwlock)
+#endif
 #endif
 
 #endif
@@ -490,31 +519,19 @@ static int trylock_writer_thread(void *data)
        printk("trylock_writer_thread/%lu runnning\n", (unsigned long)data);
        do {
                iter++;
-#if (TEST_INTERRUPTS)
-               if (wbias_write_trylock_irq_else_subscribe(&wbiasrwlock))
-#else
-               if (wbias_write_trylock_else_subscribe(&wbiasrwlock))
-#endif
+               if (wrap_write_trylock_else_subscribe())
                        goto locked;
 
 #if (TRYLOCK_WRITERS_FAIL_ITER == -1)
                for (;;) {
                        iter++;
-#if (TEST_INTERRUPTS)
-                       if (wbias_write_trylock_irq_subscribed(&wbiasrwlock))
-#else
-                       if (wbias_write_trylock_subscribed(&wbiasrwlock))
-#endif
+                       if (wrap_write_trylock_subscribed())
                                goto locked;
                }
 #else
                for (i = 0; i < TRYLOCK_WRITERS_FAIL_ITER - 1; i++) {
                        iter++;
-#if (TEST_INTERRUPTS)
-                       if (wbias_write_trylock_irq_subscribed(&wbiasrwlock))
-#else
-                       if (wbias_write_trylock_subscribed(&wbiasrwlock))
-#endif
+                       if (wrap_write_trylock_subscribed())
                                goto locked;
                }
 #endif
@@ -527,11 +544,7 @@ locked:
                for (i = 0; i < NR_VARS; i++) {
                        var[i] = new;
                }
-#if (TEST_INTERRUPTS)
-               wbias_write_unlock_irq(&wbiasrwlock);
-#else
-               wbias_write_unlock(&wbiasrwlock);
-#endif
+               wrap_write_unlock();
 loop:
                if (TRYLOCK_WRITER_DELAY > 0)
                        udelay(TRYLOCK_WRITER_DELAY);
@@ -690,6 +703,7 @@ static int my_open(struct inode *inode, struct file *file)
 
        wbias_rwlock_profile_latency_print();
 
+#if (TEST_PREEMPT)
        printk("** Single non-preemptable reader test, no contention **\n");
        wbias_rwlock_profile_latency_reset();
        npreader_threads[0] = kthread_run(npreader_thread, (void *)0,
@@ -700,6 +714,7 @@ static int my_open(struct inode *inode, struct file *file)
        printk("\n");
 
        wbias_rwlock_profile_latency_print();
+#endif
 
        printk("** Multiple p/non-p readers test, no contention **\n");
        wbias_rwlock_profile_latency_reset();