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Re: [Linux-cluster] creating file locks on a gfs volume



Christine Caulfield has blessed us with an excellent reference that answers these questions:

http://people.redhat.com/ccaulfie/docs/rhdlmbook.pdf



On Tue, Aug 12, 2008 at 8:46 AM, Brett Cave <brettcave gmail com> wrote:
Hi,

Not sure if this is the correct place for discussing this, but here it is.
On a gfs cluster running dlm locking, is it possible to create a file
lock on a file on the volume? (e.g. in C).
Have seen that there is a libdlm library, and have not tested yet. By
calling dlm_lock, would gfs be aware of the file lock?

This is to allow an application we are developing to create file locks
with different lock modes, based on what the app is doing (e.g. CR /
CW / PW / EX locks).

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