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From: Allan Graves <allan.graves@oracle.com>
To: user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] os_lock_file removal
Date: Fri, 24 Jun 2005 15:19:53 -0400	[thread overview]
Message-ID: <42BC5CD9.2080005@oracle.com> (raw)

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Hi guys.  I'm working on developing a cluster file system and I'd like 
to simulate concurrent shared storage access using uml and disk files.  
I traced down the file locking, and it seems that (assuming I have a 
cluster file system that keeps things up to date in the metadata of the 
filesystem) if I remove this function I should be able to have more than 
1 instance accessing storage at the same time.  I realize this is a bit 
dangerous, since it involves *all* block devices,  but I don't see a 
much better way.  COW is not what I'm looking for, and that seems to be 
the standard answer.  Can anyone provide positive or negative feedback 
on this approach?  Possibly a better approach? 
Thanks,
Allan Graves

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             reply	other threads:[~2005-06-24 19:20 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-24 19:19 Allan Graves [this message]
2005-06-24 21:15 ` [uml-devel] os_lock_file removal Jeff Dike

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