From mboxrd@z Thu Jan  1 00:00:00 1970
From: "kernel learner" <kernellearner@gmail.com>
Subject: Upgrading datastructures between different filesystem versions
Date: Tue, 25 Sep 2007 20:57:51 +0530
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Hi,

ext3 filesystem has 32-bit block address and ext4 filesystem has 48-bit
block address. If a user installs ext4, how will the file system handle
already existing block with 32 bit values? Can anyone point me to the
correct pointer for this backward compatibility stuff? I searched for it but
cudn't find much info. Is the work still pending on this front?

Thanks,
KL

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Hi,<br><br>ext3 filesystem has 32-bit block address and ext4 filesystem has 48-bit block address. If a user installs ext4, how will the file system handle already existing block with 32 bit values? Can anyone point me to the correct pointer for this backward compatibility stuff? I searched for it but cudn&#39;t find much info. Is the work still pending on this front? 
<br><br>Thanks,<br>KL<br>

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