zipf: use 64-bit safe hash for zipf/pareto

[fio.git] / lib / zipf.c

diff --git a/lib/zipf.c b/lib/zipf.c
index 41e20554b3d019885ed76c9fbe9b66183c4100cf..9b6ce6334836baa1f0f3c0c238da24f319ad4c3b 100644 (file)
--- a/lib/zipf.c
+++ b/lib/zipf.c
@@ -69,7 +69,7 @@ unsigned long long zipf_next(struct zipf_state *zs)
        else
                val = 1 + (unsigned long long)(n * pow(eta*rand_uni - eta + 1.0, alpha));
 
-       return (__hash_long(val - 1) + zs->rand_off) % zs->nranges;
+       return (__hash_u64(val - 1) + zs->rand_off) % zs->nranges;
 }
 
 void pareto_init(struct zipf_state *zs, unsigned long nranges, double h,
@@ -84,5 +84,5 @@ unsigned long long pareto_next(struct zipf_state *zs)
        double rand = (double) __rand(&zs->rand) / (double) FRAND_MAX;
        unsigned long long n = zs->nranges - 1;
 
-       return (__hash_long(n * pow(rand, zs->pareto_pow)) + zs->rand_off) % zs->nranges;
+       return (__hash_u64(n * pow(rand, zs->pareto_pow)) + zs->rand_off) % zs->nranges;
 }