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(root)/kernel/trunk/test/synch/rwlock4/test.c – Rev 623 → 625



static void failed(void);
 
__u32 random(__u32 max)
{
    __u32 rc;
 
 
    spinlock_lock(&lock);  
    rc = seed % max;
    seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;
    spinlock_unlock(&lock);

Rev 623	Rev 625
Line 59...	Line 59...
59	static void failed(void);	59	static void failed(void);
60		60
61	__u32 random(__u32 max)	61	__u32 random(__u32 max)
62	{	62	{
63	__u32 rc;	63	__u32 rc;
64	ipl_t ipl;	-
65		64
66	spinlock_lock(&lock);	65	spinlock_lock(&lock);
67	rc = seed % max;	66	rc = seed % max;
68	seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;	67	seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;
69	spinlock_unlock(&lock);	68	spinlock_unlock(&lock);