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author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-16 13:13:14 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2015-12-16 18:44:08 +0300 |
commit | 3a324606bbabfc30084ce9d08169910773ba9a92 (patch) | |
tree | 3561b143a3f0c9036cd6e9b9e5e3adc95208846a /lib/usercopy.c | |
parent | 887dc9f2cef6e98dcccf807da5e6faf4f60ba483 (diff) | |
download | linux-3a324606bbabfc30084ce9d08169910773ba9a92.tar.xz |
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>
Diffstat (limited to 'lib/usercopy.c')
0 files changed, 0 insertions, 0 deletions