Andrea Arcangeli a écrit :
+
+static int mm_lock_cmp(const void *a, const void *b)
+{
+ cond_resched();
+ if ((unsigned long)*(spinlock_t **)a <
+ (unsigned long)*(spinlock_t **)b)
+ return -1;
+ else if (a == b)
+ return 0;
+ else
+ return 1;
+}
+
This compare function looks unusual...
It should work, but sort() could be faster if the
if (a == b) test had a chance to be true eventually...
static int mm_lock_cmp(const void *a, const void *b)
{
unsigned long la = (unsigned long)*(spinlock_t **)a;
unsigned long lb = (unsigned long)*(spinlock_t **)b;
cond_resched();
if (la < lb)
return -1;
if (la > lb)
return 1;
return 0;
}
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