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

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Message-ID: <87y5jz4rio.fsf@devron.myhome.or.jp>
Date:	Mon, 24 Sep 2012 19:57:51 +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:

>> I see. fileid seems to be stat.ino on nfsd4. inode->i_ino is actually
>> just a hash key of inode hash (exception is only in audit, iirc).
>>
>> So, what happens if we set "stat->ino = i_pos" on fat_getattr().
>>
>> int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat
>> *stat)
>> {
>> 	struct inode *inode = dentry->d_inode;
>> 	generic_fillattr(inode, stat);
>> 	stat->blksize = MSDOS_SB(inode->i_sb)->cluster_size;
>> 	if (opts->nfs == FAT_NFS_LIMITED) {
>> 		/* Use i_pos for ino. This is used as fileid of nfs. */
>> 		stat->ino = MSDOS_SB(inode->i_sb)->i_pos;

		stat->ino = fat_i_pos_read(MSDOS_SB(inode->i_sb), inode);

Ouch, I forgot to use fat_i_pos_read().

>> 	}
>> 	return 0;
>> }
> Okay, Thanks for your help.
> I will share the result after checking.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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