[Gluster-devel] Mandatory Locks support for GlusterFS

Anoop C S anoopcs at redhat.com
Tue Apr 19 11:36:49 UTC 2016


On Wed, 2015-12-02 at 06:29 +0530, Anoop C S wrote:
> Hi all,
> 
> As part of preparing GlusterFS to cope with Multi-protocol
> environment,
> it is necessary to have mandatory locks support within the file
> system
> with respect to its integration to protocols like NFS or SMB. This
> will
> allow clients which require mandatory locks to apply for the same
> instead of the default advisory mode locks. GlusterFS native clients
> can still live with their current advisory lock semantics. Apart from
> linux-style mandatory locks, which is enforced based on file mode
> bits,
> this feature enables us to force the entire volume to either strictly
> follow mandatory lock semantics or to have a mixed environment where
> both advisory and mandatory locks exists on their own. Please
> see/review [1] for detailed design doc and add your
> suggestions/comments as early as possible.
> 
> [1] http://review.gluster.org/#/c/12014/
> 

Updated the design doc with explanation on nature of proposed change.

> Thanks,
> --Anoop C S.
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