[Linux-cluster] Re: GFS, what's remaining

David Teigland teigland at redhat.com
Mon Sep 5 09:24:33 UTC 2005


On Mon, Sep 05, 2005 at 01:54:08AM -0700, Andrew Morton wrote:
> David Teigland <teigland at redhat.com> wrote:
> >
> >  We export our full dlm API through read/write/poll on a misc device.
> >
> 
> inotify did that for a while, but we ended up going with a straight syscall
> interface.
> 
> How fat is the dlm interface?   ie: how many syscalls would it take?

Four functions:
  create_lockspace()
  release_lockspace()
  lock()
  unlock()

Dave




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