linux-kernel - Re: bug? VFAT copy problem

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Message-ID: <8764d7v4nh.fsf@duaron.myhome.or.jp>
Date:	Thu, 23 Nov 2006 01:15:46 +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:

> and the copy of an "abnormal" file:
>
> # cp -v DSCN5980.JPG /mnt/loop/
> `DSCN5980.JPG' -> `/mnt/loop/DSCN5980.JPG'
>
> and its dmesg output:
> vfat_hashi: parent d528a514, parent->d_op e0fbf5c0
> vfat_hashi: parent /, name DSCN5980.JPG
> vfat_cmpi: parent d528a514, parent->d_op e0fbf5c0
> vfat_cmpi: a dscn5980.jpg, b DSCN5980.JPG
> vfat_hashi: parent d528a514, parent->d_op e0fbf5c0
> vfat_hashi: parent /, name DSCN5980.JPG
> vfat_cmpi: parent d528a514, parent->d_op e0fbf5c0
> vfat_cmpi: a dscn5980.jpg, b DSCN5980.JPG
> vfat_create: name dscn5980.jpg
> vfat_add_entry: 0: DSCN5980, JPG
> vfat_add_entry: 1: dscn5, 980.jp, g
> vfat_create: err 0

This seems to be nasty problem of dentry cache handling.

>> And if you comment-in the
>> following parts, does this problem fix?
>
> I will repatch asap and post the result.

Thanks. Probably instead of some overheads, this patch will fix a problem.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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