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Message-ID: <87y6r9dz4h.fsf@devron.myhome.or.jp>
Date:	Wed, 01 Jul 2009 09:29:34 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Marton Balint <cus@...ekas.hu>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: vfat creates multiple files with the same filename

Marton Balint <cus@...ekas.hu> writes:

> On Tue, 30 Jun 2009, OGAWA Hirofumi wrote:
>> Marton Balint <cus@...ekas.hu> writes:
>> 
>> > I don't know if removing the invalid characters silently instead of 
>> > returning EINVAL is a good practice, but allowing two files with identical 
>> > filenames is definitely wrong. 
>> 
>> The utf8 function seems didn't return the error for invalid char.
>> 
>> > Could someone please have a look at the problem? Unfortunately I am not 
>> > qualified enough to track it down...
>> >
>> > I've run the testcase on both 2.6.30 and 2.6.31-rc1 kernels, but this bug 
>> > is probably not very new, since I remember having it also in 2.6.27.
>> 
>> This is quick hack though, this should return -EINVAL for invalid char
>> like nls.  Can you try this?
>
> It works for me, filenames with invalid utf-8 characters are now rejected, 
> so I no longer can create multiple files with the same name. Thanks for 
> the fix.

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