Random distribution 32-bit fixes

We calculate and use nranges as an unsigned long, but that can
be 32-bit on some platforms and hence overflow.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/zipf.h b/lib/zipf.h
index a4aa163c..16b65f57 100644
--- a/lib/zipf.h
+++ b/lib/zipf.h
@@ -16,11 +16,11 @@ struct zipf_state {
 	bool disable_hash;
 };
 
-void zipf_init(struct zipf_state *zs, unsigned long nranges, double theta, unsigned int seed);
-unsigned long long zipf_next(struct zipf_state *zs);
+void zipf_init(struct zipf_state *zs, uint64_t nranges, double theta, unsigned int seed);
+uint64_t zipf_next(struct zipf_state *zs);
 
-void pareto_init(struct zipf_state *zs, unsigned long nranges, double h, unsigned int seed);
-unsigned long long pareto_next(struct zipf_state *zs);
+void pareto_init(struct zipf_state *zs, uint64_t nranges, double h, unsigned int seed);
+uint64_t pareto_next(struct zipf_state *zs);
 void zipf_disable_hash(struct zipf_state *zs);
 
 #endif