tree 3561b143a3f0c9036cd6e9b9e5e3adc95208846a
parent 887dc9f2cef6e98dcccf807da5e6faf4f60ba483
author Herbert Xu <herbert@gondor.apana.org.au> 1450260794 +0800
committer David S. Miller <davem@davemloft.net> 1450280648 -0500

rhashtable: Enforce minimum size on initial hash table

William Hua <william.hua@canonical.com> wrote:
>
> I wasn't aware there was an enforced minimum size. I simply set the
> nelem_hint in the rhastable_params struct to 1, expecting it to grow as
> needed. This caused a segfault afterwards when trying to insert an
> element.

OK we're doing the size computation before we enforce the limit
on min_size.

---8<---
We need to do the initial hash table size computation after we
have obtained the correct min_size/max_size parameters.  Otherwise
we may end up with a hash table whose size is outside the allowed
envelope.

Fixes: a998f712f77e ("rhashtable: Round up/down min/max_size to...")
Reported-by: William Hua <william.hua@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>