linux-kernel - Re: [PATCH] mm-move-mremap-from-file_operations-to-vm_operations

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Date:	Fri, 17 Jul 2015 14:12:08 -0400
From:	Austin S Hemmelgarn <ahferroin7@...il.com>
To:	Oleg Nesterov <oleg@...hat.com>, Benjamin LaHaise <bcrl@...ck.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <js1304@...il.com>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Jeff Moyer <jmoyer@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm-move-mremap-from-file_operations-to-vm_operations_struct-fix

On 2015-07-17 13:55, Oleg Nesterov wrote:
> On 07/17, Benjamin LaHaise wrote:
>>
>> Don't add BUG().  It's the equivalent approach of saying "I think this code
>> isn't needed, but I'm lazy and not going to remove it properly."
>
> There is another interpretation: I think this code must be never called,
> if it is actually called we have a serious problem which should be loudly
> reported.
>
And not compiling it at all _will_ loudly report it, it'll just report 
it during linking instead of at run-time, which is a much better time to 
shout about it.


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