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

Christophe Varoqui christophe.varoqui at free.fr
Thu Mar 2 16:38:13 UTC 2006


On Thu, Mar 02, 2006 at 11:28:04AM -0500, egoggin at emc.com wrote:
> 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.
> 
I was refering to the git HEAD.

Regards,
cvaroqui




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