linux-kernel - Re: [PATCH v3 2/5] fat: allocate persistent inode numbers

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Message-ID: <87ehls53ug.fsf@devron.myhome.or.jp>
Date:	Mon, 24 Sep 2012 15:31:35 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Namjae Jeon <linkinjeon@...il.com>
Cc:	akpm@...ux-foundation.org, bfields@...ldses.org,
	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org,
	Namjae Jeon <namjae.jeon@...sung.com>,
	Ravishankar N <ravi.n1@...sung.com>,
	Amit Sahrawat <a.sahrawat@...sung.com>
Subject: Re: [PATCH v3 2/5] fat: allocate persistent inode numbers

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

>> What is problem if i_ino + i_generation is not match? I think, even if
>> those didn't match, i_pos in FH should resolve issue, no?
> No, It can not resolve issue.
> in NFS file handle, there is a reference to the current inode number.
> So, if by eviction that is changed - that it will results in "file id
> changed" error.

Who returns error?

> even though using the i_pos we can reconstruct and get the INODE on
> the Server, but the NFS handle is no more valid. As the inode number
> is also changed, iunique() for the file will result in different
> number this time.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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