Messages in this thread | | | Date | Tue, 21 Feb 2006 18:26:07 -0500 | Subject | Re: FMODE_EXEC or alike? | From | "J. Bruce Fields" <> |
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On Tue, Feb 21, 2006 at 08:59:56AM -0500, Trond Myklebust wrote: > Hmm.... We might possibly want to use that for NFSv4 at some point in > order to deny write access to the file to other clients while it is in > use.
So on the NFS client, an open with FMODE_EXEC could be translated into an NFSv4 open with a deny_write bit (since NFSv4 opens also do windows share locks).
An NFSv4 server might also be able to translate deny mode writes into FMODE_EXEC in the case where it was exporting a cluster filesystem. It wouldn't completely solve the problem of implementing cluster-coherent share locks (which also let you deny reads, who knows why), but it seems like it would address the case most likely to matter.
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