linux-kernel - Re: [PATCH 0/4] fat: fix ESTALE errors

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Message-ID: <874nnwiw67.fsf@devron.myhome.or.jp>
Date:	Tue, 21 Aug 2012 15:41:36 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Namjae Jeon <linkinjeon@...il.com>
Cc:	"J. Bruce Fields" <bfields@...ldses.org>,
	Al Viro <viro@...iv.linux.org.uk>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, Namjae Jeon <namjae.jeon@...sung.com>
Subject: Re: [PATCH 0/4] fat: fix ESTALE errors

Namjae Jeon <linkinjeon@...il.com> writes:

> And.. Hi Ogawa.
> I checked other filesystem about unlink - inode issue. but I found
> Ext4 have same issue.
> Although other filesysm is having this issue, Can we think It could be
> only FAT issue ?

(I assume this issue == orphaned inode issue).

ext* doesn't have this issue. If ext* made orphaned inode, ext* doesn't
delete inode from inode table until calling iput() from last referencer.

In FAT case, FAT inode is embedded into dir entry. So, if unlinked inode
(then orphaned inode is detached (fat_detach())), FAT deletes inode (dir
entry) from dir.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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