linux-kernel - Re: [2.6.18-rc* PATCH RFC]: Correct ambiguous errno of aio

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Date:	Mon, 28 Aug 2006 22:55:41 +0800
From:	Yi Yang <yang.y.yi@...il.com>
To:	Frederik Deweerdt <deweerdt@...e.fr>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [2.6.18-rc* PATCH RFC]: Correct ambiguous errno of aio

Frederik Deweerdt 写道:
> On Mon, Aug 28, 2006 at 09:28:48PM +0800, Yi Yang wrote:
>   
>> In the current implementation of AIO, for the operation IOCB_CMD_FDSYNC
>> and IOCB_CMD_FSYNC, the returned errno is -EINVAL although the kernel
>> does know them, I think the correct errno should be -EOPNOTSUPP which
>> means they aren't be implemented or supported.
>>     
> Hi, 
>
> If I'm not mistaken, returning EINVAL conforms to POSIX, isn't it?
>   
But POSIX also defined ENOTSUP which is equal to EOPNOTSUPP for linux.
> http://www.opengroup.org/onlinepubs/009695399/functions/fsync.html
> Regards,
> Frederik
>  
>
>   

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