linux-kernel - Re: [PATCH 02/10] KVM: x86: MMU: Add helper function to clear a bit in unsync child bitmap

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Date:	Wed, 18 Nov 2015 10:44:56 +0800
From:	Xiao Guangrong <guangrong.xiao@...ux.intel.com>
To:	Takuya Yoshikawa <yoshikawa_takuya_b1@....ntt.co.jp>,
	pbonzini@...hat.com
Cc:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/10] KVM: x86: MMU: Add helper function to clear a bit
 in unsync child bitmap



On 11/12/2015 07:50 PM, Takuya Yoshikawa wrote:
> +			if (!ret) {
> +				clear_unsync_child_bit(sp, i);
> +				continue;
> +			} else if (ret > 0) {
>   				nr_unsync_leaf += ret;

Just a single line here, braces are unnecessary.

> -			else
> +			} else
>   				return ret;
>   		} else if (child->unsync) {
>   			nr_unsync_leaf++;
>   			if (mmu_pages_add(pvec, child, i))
>   				return -ENOSPC;
>   		} else
> -			 goto clear_child_bitmap;
> -
> -		continue;
> -
> -clear_child_bitmap:
> -		__clear_bit(i, sp->unsync_child_bitmap);
> -		sp->unsync_children--;
> -		WARN_ON((int)sp->unsync_children < 0);
> +			clear_unsync_child_bit(sp, i);
>   	}
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