linux-kernel - Re: RFC : fat : default errors use FAT_ERRORS_CONT instead of FAT_ERRORS

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Message-ID: <CAKYAXd-qmJSbGNCNBjtahL+OtQDkOrnop3MzHRYRVR2anu0fGw@mail.gmail.com>
Date:	Thu, 13 Oct 2011 16:35:29 +0900
From:	NamJae Jeon <linkinjeon@...il.com>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: RFC : fat : default errors use FAT_ERRORS_CONT instead of FAT_ERRORS_RO.

2011/10/13 OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>:
> NamJae Jeon <linkinjeon@...il.com> writes:
>
>> Hi ogawa.
>>
>> I found different error exception between linux fat and windows fat.
>>
>> When fat is currputed by sudden unplug usb device formatted fat, fat
>> does never change RO partition on windows.
>>
>> It said windows fat provide a chance that continuously access
>> partition except corrupted file.
>>
>> Currently when access corrupted file, linux fat change RO parition
>> from RW. So user no longer do open/write on linux fat.
>>
>> I suggest that the default errors of linux fat use FAT_ERRORS_CONT
>> instead of FAT_ERRORS_RO.
>>
>> I want to know your opinion.
>
> I think it is dangerous, and the default should be safer side.
>
> If driver noticed the corruption, it means FS is not unknown state
> anymore.  Any files/directories are possibly corrupted.
>
> Even if you change the file that seems to be uncorrupted, it may make FS
> unrecoverable more. (e.g. lose all data in worst case)
Hi ogawa.
Thanks for your reply. I follow your opinion.

>
> Thanks.
> --
> OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
>
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