linux-kernel - Re: [RFC 1/4] hashtable: introduce a small and naive hashtable

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Date:	Wed, 1 Aug 2012 13:24:32 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Sasha Levin <levinsasha928@...il.com>
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	paul.gortmaker@...driver.com
Subject: Re: [RFC 1/4] hashtable: introduce a small and naive hashtable

On Wed, Aug 01, 2012 at 09:06:50PM +0200, Sasha Levin wrote:
> Using a struct makes the dynamic case much easier, but it complicates the static case.
> 
> Previously we could create the buckets statically.
> 
> Consider this struct:
> 
> struct hash_table {
> 	u32 bits;
> 	struct hlist_head buckets[];
> };
> 
> We can't make any code that wraps this to make it work properly
> statically allocated nice enough to be acceptable.

I don't know.  Maybe you can create an anonymous outer struct / union
and play symbol trick to alias hash_table to its member.  If it is
gimped either way, I'm not sure whether it's really worthwhile to
create the abstraction.  It's not like we're saving a lot of
complexity.

Thanks.

-- 
tejun
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