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dmapi apps and xfsdump

To: linux-xfs@xxxxxxxxxxx
Subject: dmapi apps and xfsdump
From: John Groves <John@xxxxxxxxxx>
Date: Tue, 15 Mar 2005 13:05:41 -0600
Sender: linux-xfs-bounce@xxxxxxxxxxx
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I have a DM application that uses XFS and dmapi. I need a way to keep xfsdump from triggering a data fault on files that have holes punched in them. I see that xfsdump has code that knows about DMF attributes, and it will avoid triggering DMF data faults if run with the "-a" option. I am (not surprisingly) not using an attributes strategy identical to DMF's, so this doesn't work for my app.

Before I tunnel through the whole implementation of xfsdump, I'm hoping the dmapi/xfsdump developers could make suggestions as to the best approach for getting "-a" behavior with my app. Without going overboard to "spoof" DMF behavior, is there a way of doing it without modifying xfsdump? If I do need to patch xfsdump, suggestions appreciated as to the best approach.

Thanks,
John Groves




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