linux-kernel - Re: bug? VFAT copy problem

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Date:	Thu, 23 Nov 2006 04:29:15 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	The Peach <smartart@...cali.it>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: bug? VFAT copy problem

The Peach <smartart@...cali.it> writes:

> On Thu, 23 Nov 2006 01:15:46 +0900
> OGAWA Hirofumi <hirofumi@...l.parknet.co.jp> wrote:
>
>> Thanks. Probably instead of some overheads, this patch will fix a problem.
>
> here it is, did the very same experiments than before.
> Normal file:
> # cp -v DSCN5970\(1\).JPG /mnt/loop/
> `DSCN5970(1).JPG' -> `/mnt/loop/DSCN5970(1).JPG'
>
> dmesg:
> vfat_hashi: parent d1801e94, parent->d_op e0fbc620
> vfat_hashi: parent /, name DSCN5970(1).JPG
> vfat_cmpi: parent d1801e94, parent->d_op e0fbc620
> vfat_cmpi: a DSCN5970(1).JPG, b DSCN5970(1).JPG
> vfat_revalidate: name DSCN5970(1).JPG, nd d65eaeec, flags 00000001
> vfat_lookup: name DSCN5970(1).JPG
> vfat_hashi: parent d1801e94, parent->d_op e0fbc620
> vfat_hashi: parent /, name DSCN5970(1).JPG
> vfat_cmpi: parent d1801e94, parent->d_op e0fbc620
> vfat_cmpi: a DSCN5970(1).JPG, b DSCN5970(1).JPG
> vfat_revalidate: name DSCN5970(1).JPG, nd d65eaf24, flags 00000300
> vfat_lookup: name DSCN5970(1).JPG
> vfat_create: name DSCN5970(1).JPG
> vfat_add_entry: 0: DSCN59~1, JPG
> vfat_add_entry: 1: DSCN5, 970(1), .J
> vfat_add_entry: 2: PG
> vfat_create: err 0
>
> Abnormal file:
> # cp -v DSCN5980.JPG /mnt/loop/
> `DSCN5980.JPG' -> `/mnt/loop/DSCN5980.JPG'
>
> dmesg:
> vfat_hashi: parent d1801e94, parent->d_op e0fbc620
> vfat_hashi: parent /, name DSCN5980.JPG
> vfat_cmpi: parent d1801e94, parent->d_op e0fbc620
> vfat_cmpi: a dscn5980.jpg, b DSCN5980.JPG
> vfat_revalidate: name dscn5980.jpg, nd d65eaeec, flags 00000001
> vfat_lookup: name DSCN5980.JPG
> vfat_hashi: parent d1801e94, parent->d_op e0fbc620
> vfat_hashi: parent /, name DSCN5980.JPG
> vfat_cmpi: parent d1801e94, parent->d_op e0fbc620
> vfat_cmpi: a DSCN5980.JPG, b DSCN5980.JPG
> vfat_revalidate: name DSCN5980.JPG, nd d65eaf24, flags 00000300
> vfat_lookup: name DSCN5980.JPG
> vfat_create: name DSCN5980.JPG
> vfat_add_entry: 0: DSCN5980, JPG
> vfat_create: err 0
>
> and:
> # ls -l /mnt/loop/
> totale 1363
> -rwxr-xr-x 1 root root 695514 22 nov 20:04 DSCN5970(1).JPG
> -rwxr-xr-x 1 root root 699770 22 nov 20:07 dscn5980.jpg
>
> dmesg:
> vfat_hashi: parent d1801e94, parent->d_op e0fbc620
> vfat_hashi: parent /, name DSCN5970(1).JPG
> vfat_cmpi: parent d1801e94, parent->d_op e0fbc620
> vfat_cmpi: a DSCN5970(1).JPG, b DSCN5970(1).JPG
> vfat_revalidate: name DSCN5970(1).JPG, nd d2512eec, flags 00000000
> vfat_lookup: name DSCN5970(1).JPG
> vfat_hashi: parent d1801e94, parent->d_op e0fbc620
> vfat_hashi: parent /, name dscn5980.jpg
> vfat_cmpi: parent d1801e94, parent->d_op e0fbc620
> vfat_cmpi: a DSCN5980.JPG, b dscn5980.jpg
> vfat_revalidate: name DSCN5980.JPG, nd d2512eec, flags 00000000

This is different thing. Please try "shortname=winnt" or "shortname=mixed"
mount option for shortname (default is shortname=lower).
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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