linux-kernel - Re: [rfc] [patch 1/2 ] Process private hash tables for private futexes

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Message-ID: <49F0A5AF.5080906@us.ibm.com>
Date:	Thu, 23 Apr 2009 10:30:23 -0700
From:	Darren Hart <dvhltc@...ibm.com>
To:	Eric Dumazet <dada1@...mosbay.com>
CC:	Ravikiran G Thirumalai <kiran@...lex86.org>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	shai@...lex86.org, Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [rfc] [patch 1/2 ] Process private hash tables for private	futexes

Eric Dumazet wrote:

> 
> +	futex_queues = alloc_large_system_hash("futexes",
> +			sizeof(struct futex_hash_bucket),
> +			nr_slots,
> +			0, /* scale : unused */
> +			0, /* flags */
> +			NULL, /* shift */
> +			&futex_hash_mask,
> +			nr_slots);

OK, so I'm a little late to the party, apologies.

Minor nit (from someone who has been spending a lot of time in futex.c
trying to clean things up recently :-).  Let's not comment each argument
individually.  It needlessly lengthens the code.  The interested user
can easily look up alloc_large_system_hash.  If you feel a comment is
really needed, consider a single line before the call... I gave this
some thought and couldn't think of anything you could put there that
wouldn't still send the interested reader over to page_alloc.c.

/* Allocate futex hashtable with... <whatever is special about this> */
futex_queues = alloc_large_system_hash("futexes",
				       sizeof(struct futex_hash_bucket),
				       nr_slots, 0, 0, NULL, &futex_hash_mask,
				       nr_slots);

-- 
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team
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