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author | Jens Axboe <axboe@kernel.dk> | 2018-09-17 11:00:50 -0600 |
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committer | Jens Axboe <axboe@kernel.dk> | 2018-09-17 11:00:50 -0600 |
commit | abb60c32c26d6421283d2a72170508dfb2b94507 (patch) | |
tree | ee809dbb1edb67e54e9cdcdc445ef8b2180ff35d /lib/zipf.h | |
parent | a0c84dd4354eaf0a84b8bf0a3126f65301f2206f (diff) | |
download | fio-abb60c32c26d6421283d2a72170508dfb2b94507.tar.gz fio-abb60c32c26d6421283d2a72170508dfb2b94507.tar.bz2 |
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>
Diffstat (limited to 'lib/zipf.h')
-rw-r--r-- | lib/zipf.h | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -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 |