linux-kernel - Re: [patch] mm, mempolicy: make mpol_to

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Message-ID: <alpine.DEB.2.02.1309251057080.17676@chino.kir.corp.google.com>
Date:	Wed, 25 Sep 2013 10:58:27 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Dave Jones <davej@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Chen Gang <gang.chen@...anux.com>,
	Rik van Riel <riel@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [patch] mm, mempolicy: make mpol_to_str robust and always
 succeed

On Tue, 24 Sep 2013, Dave Jones wrote:

>  > 	/* fall through */
>  > 
>  > for all of them would be pretty annoying.
>  
> agreed, but with that example, it seems pretty obvious (to me at least)
> that the lack of break's is intentional.  Where it gets trickier to
> make quick judgment calls is cases like the one I mentioned above,
> where there are only a few cases, and there's real code involved in
> some but not all cases.
> 

I fully agree and have code in the oom killer that has the "fall through" 
comment if there's code in between the case statements, but I think things 
like

	case MPOL_BIND:
	case MPOL_INTERLEAVE:
		...

is quite easy to read.  I don't feel strongly at all, though, so I'll just 
leave it to Andrew's preference.
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