linux-kernel - Re: [PATCH 1/2][-mm][resend] res_counter limit change support ebusy

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Message-Id: <20080722014043.92272350.akpm@linux-foundation.org>
Date:	Tue, 22 Jul 2008 01:40:43 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"xemul@...nvz.org" <xemul@...nvz.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2][-mm][resend] res_counter limit change support ebusy

On Mon, 14 Jul 2008 17:11:54 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:

> +static inline int res_counter_set_limit(struct res_counter *cnt,
> +	unsigned long long limit)
> +{
> +	unsigned long flags;
> +	int ret = -EBUSY;
> +
> +	spin_lock_irqsave(&cnt->lock, flags);
> +	if (cnt->usage < limit) {
> +		cnt->limit = limit;
> +		ret = 0;
> +	}
> +	spin_unlock_irqrestore(&cnt->lock, flags);
> +	return ret;
> +}

Need I say it?  This function is waaaaaay too large to be inlined.
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