Re: linux-next: Tree for Aug 30 (jbd2 + bug.h)

From: Arnaud Lacombe
Date: Thu Sep 01 2011 - 16:30:53 EST


Hi,

On Thu, Sep 1, 2011 at 7:43 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Wednesday 31 August 2011, Randy Dunlap wrote:
>> On Tue, 30 Aug 2011 17:16:05 +1000 Stephen Rothwell wrote:
>>
>> > Hi all,
>>
>> [Sorry about the delay.  My build machine is being slow.
>> If this is alread fixed, sorry about the noise.]
>>
>>
>> When CONFIG_BUG is not enabled (I see this on x86_64):
>>
>> fs/jbd2/transaction.c: In function 'jbd2_journal_dirty_metadata':
>> fs/jbd2/transaction.c:1176: error: implicit declaration of function '__WARN'
>>
>>
>> asm-generic/bug.h does not provide a version of __WARN() when
>> CONFIG_BUG is not enabled...
>>
>
> Hmm, my feeling is that we shouldn't do that either, and that jbd2 should
> be changed. If we want a function that does what __WARN() does today, we
> should probably make a conscious decision about what we want it to be called
> and not have it start with "__".
>
Why is WARN_ON() not used here ?

- Arnaud

>        Arnd
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