#ifdef CONFIG_SLAB_FREELIST_RANDOM
/* Randomize a generic freelist */
-static void freelist_randomize(struct rnd_state *state, unsigned int *list,
+static void freelist_randomize(unsigned int *list,
unsigned int count)
{
unsigned int rand;
/* Fisher-Yates shuffle */
for (i = count - 1; i > 0; i--) {
- rand = prandom_u32_state(state);
- rand %= (i + 1);
+ rand = get_random_u32_below(i + 1);
swap(list[i], list[rand]);
}
}
int cache_random_seq_create(struct kmem_cache *cachep, unsigned int count,
gfp_t gfp)
{
- struct rnd_state state;
if (count < 2 || cachep->random_seq)
return 0;
if (!cachep->random_seq)
return -ENOMEM;
- /* Get best entropy at this stage of boot */
- prandom_seed_state(&state, get_random_long());
-
- freelist_randomize(&state, cachep->random_seq, count);
+ freelist_randomize(cachep->random_seq, count);
return 0;
}