Re: [PATCH net-next 3/3] nftables: Convert nft_hash to use generic rhashtable

[Thomas Graf]

On 08/01/14 at 03:12pm, Patrick McHardy wrote:
> On 1. August 2014 14:49:01 GMT+01:00, Thomas Graf <tgraf@xxxxxxx> wrote:
> >On 08/01/14 at 02:21pm, Nikolay Aleksandrov wrote:
> >> Sorry for the late response but I just got around to check the 3rd
> >patch now,
> >> so my question about this fragment is: before nft_hash_remove() would
> >free the
> >> element after removal, but after this change I don't see where and
> >when the
> >> removed element would get freed ?
> >
> >You are right. Looking at this closer we were leaking references even
> >before the change because it would not call nft_data_uninit() to
> >release
> >the data objects. So it should really just call
> >nft_hash_elem_destroy().
> 
> No, the data uninit is performed by the set core. Just freeing it is fine.

OK, I can see the uninit on the data in nft_del_setelem() for maps
prior to the actual commit. The location is slightly unexpected since
the element is still findable in the hash table at that point.

I'll wait a short while to see if there is more feedback and resubmit
afterwards.
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