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

Christophe Varoqui christophe.varoqui at free.fr
Thu Mar 2 15:41:07 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.

Regards,
cvaroqui




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