linux-kernel - Re: [PATCH v5 7/8] fat (exportfs): rebuild directory-inode if fat

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Date:	Tue, 4 Dec 2012 15:27:34 +0900
From:	Namjae Jeon <linkinjeon@...il.com>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc:	akpm@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	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 v5 7/8] fat (exportfs): rebuild directory-inode if
 fat_dget() fails

2012/12/3, OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>:
> Namjae Jeon <linkinjeon@...il.com> writes:
>
>> From: Namjae Jeon <namjae.jeon@...sung.com>
>>
>> This patch enables rebuilding of directory inodes which are not present
>> in the cache.This is done by traversing the disk clusters to find the
>> directory entry of the parent directory and using its i_pos to build the
>> inode.
>> Do this only if the "nostale_ro" nfs mount option is specified.
>
> This became much better than before. However, we have to consolidate the
> code with fat_search_long() finally.
>
> E.g. this version is having the issue already fixed. If there is
> corruption in fat cluster-chain, it lead to infinite
> loop. fat_get_cluster() checks infinite loop by limit.
since, the focus this time was for NFS functionality for FAT (removing
ESTALE error). The changes were made in that context.

Later, we can make the changes as part of code reorganizing which can
be controlled via. Separate patches which do not have any impact on
default functionality and verification can be carried out in that
scope.



>
> OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
>
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