[dm-devel] dm-multipath [PATCH] multipathd adding devices.

egoggin at emc.com egoggin at emc.com
Thu Mar 2 16:28:04 UTC 2006


On Thu, Mar 02, 2006 at 12:09:31PM +0100, Christophe Varoqui wrote:
> > On Fri, Feb 24, 2006 at 08:33:29PM -0600, Benjamin Marzinski wrote:
> > > The way multipathd currently works, if you add a map that 
> isn't known to
> > > device mapper from multipathd, the first time you run the 
> command, it won't
> > > add the map to the mpvec vector.  With the attached 
> patch, multipathd will
> > > initialize the map and add it to the mpvec vector.
> > > 
> > How does the current behaviour affects you ?
> > Is this about races between DM and netlink events ?
> > 
> To be more specific, I think the current code rely on the 
> netlink "map add" event triggered by coalesce_paths() to feed 
> the mpvec asynchronously.
> 
> ... which seems ok to me, but I may miss a point.

What is the "current" code, the code in the git repository or
the latest release point multipath-tools-0.4.6.1?  This certainly
works fine in the code from the git repository.




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