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| author | Jason A. Donenfeld | 2017-06-08 04:47:13 +0200 |
|---|---|---|
| committer | Theodore Ts'o | 2017-06-20 04:06:28 +0200 |
| commit | d48ad080ec0101c2cca92926bed64993ab565c3d (patch) | |
| tree | 85a3211479e495739ba9a2763cf2a8095e70f87f /lib/rhashtable.c | |
| parent | ceph: ensure RNG is seeded before using (diff) | |
| download | kernel-qcow2-linux-d48ad080ec0101c2cca92926bed64993ab565c3d.tar.gz kernel-qcow2-linux-d48ad080ec0101c2cca92926bed64993ab565c3d.tar.xz kernel-qcow2-linux-d48ad080ec0101c2cca92926bed64993ab565c3d.zip | |
rhashtable: use get_random_u32 for hash_rnd
This is much faster and just as secure. It also has the added benefit of
probably returning better randomness at early-boot on systems with
architectural RNGs.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'lib/rhashtable.c')
| -rw-r--r-- | lib/rhashtable.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rhashtable.c b/lib/rhashtable.c index d9e7274a04cd..a1eb7c947f46 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -235,7 +235,7 @@ static struct bucket_table *bucket_table_alloc(struct rhashtable *ht, INIT_LIST_HEAD(&tbl->walkers); - get_random_bytes(&tbl->hash_rnd, sizeof(tbl->hash_rnd)); + tbl->hash_rnd = get_random_u32(); for (i = 0; i < nbuckets; i++) INIT_RHT_NULLS_HEAD(tbl->buckets[i], ht, i); |