linux-kernel - Re: [PATCH 06/39] lmb: Seperate __lmb_find_base() from __lmb_alloc

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Message-ID: <1271131081.13059.51.camel@pasglop>
Date:	Tue, 13 Apr 2010 13:58:01 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH 06/39] lmb: Seperate __lmb_find_base() from
 __lmb_alloc_base()

On Thu, 2010-04-08 at 23:03 -0700, Yinghai Lu wrote:

> +	return -1ULL;
> +}

Defininf some kind of LMB_ERROR would be nicer.

Cheers,
Ben.

> +u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr)
> +{
> +	u64 base;
> +
> +	base = __lmb_find_base(size, align, max_addr);
> +
> +	if (base == -1ULL)
> +		return 0;
> +
> +	if (lmb_add_region(&lmb.reserved, base, size) < 0)
> +		return 0;
> +
> +	return base;
>  }
>  
>  /* You must call lmb_analyze() before this. */


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