linux-kernel - Re: [PATCH -v6 1/2] Massive code cleanup of sys

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Message-Id: <E1JFnbj-0008SD-57@pomaz-ex.szeredi.hu>
Date:	Fri, 18 Jan 2008 10:33:51 +0100
From:	Miklos Szeredi <miklos@...redi.hu>
To:	salikhmetov@...il.com
CC:	linux-mm@...ck.org, jakob@...hought.net,
	linux-kernel@...r.kernel.org, valdis.kletnieks@...edu,
	riel@...hat.com, ksm@...dk, staubach@...hat.com,
	jesper.juhl@...il.com, torvalds@...ux-foundation.org,
	a.p.zijlstra@...llo.nl, akpm@...ux-foundation.org,
	protasnb@...il.com, miklos@...redi.hu, r.e.wolff@...wizard.nl,
	hidave.darkstar@...il.com, hch@...radead.org
Subject: Re: [PATCH -v6 1/2] Massive code cleanup of sys_msync()

>  	unsigned long end;
> -	struct mm_struct *mm = current->mm;
> +	int error, unmapped_error;
>  	struct vm_area_struct *vma;
> -	int unmapped_error = 0;
> -	int error = -EINVAL;
> +	struct mm_struct *mm;
>  
> +	error = -EINVAL;

I think you may have misunderstood my last comment.  These are OK:

	struct mm_struct *mm = current->mm;
	int unmapped_error = 0;
	int error = -EINVAL;

This is not so good:

	int error, unmapped_error;

This is the worst:

	int error = -EINVAL, unmapped_error = 0;

So I think the original code is fine as it is.

Othewise patch looks OK now.

Miklos
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