From mboxrd@z Thu Jan  1 00:00:00 1970
From: UZAIR LAKHANI <uzairr_bs1b@yahoo.com>
Subject: Regarding Wrapfs Code - function wrapfs_interpose
Date: Fri, 7 Apr 2006 21:51:46 -0700 (PDT)
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Hello All,

I want to find out the purpose of a part of Wrapfs
code.

The function name is wrapfs_interpose

The code is

/* check that the lower file system didn't cross a
mount point */
	if (lower_inode->i_sb != SUPERBLOCK_TO_LOWER(sb)) {
		err = -EXDEV;
		goto out;
	}

I want to find out what is the purpose of the above
check.

Thanks,

Uzair Lakhnai
Karachi, Pakistan


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