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RE: [dm-devel] path selector question



The path selector and hardware handler dm-multipath modules
are loaded using module automatic loading enabled by the
kernel's "CONFIG_KMOD" define.  Check out the calls
to request_module from both dm_get_path_selector and
dm_get_hw_handler respectively.

> -----Original Message-----
> From: dm-devel-bounces redhat com 
> [mailto:dm-devel-bounces redhat com] On Behalf Of Brad Johnson
> Sent: Tuesday, March 21, 2006 10:41 AM
> To: dm-devel redhat com
> Subject: [dm-devel] path selector question
> 
> I am in the process of adding one or more new path selector 
> types to the
> device-mapper. While the dm-round-robin module gets 
> automatically loaded
> when multipath is started, my new module does not (I have to manually
> add it with modprobe). I know there are many ways I can have this done
> automatically, such as adding my own init script. But I am 
> very curious
> how the round-robin module is getting automatically loaded. I have
> grepped through all the source code for multipath-tools and device-
> mapper, as well as the config files for the tools. And while 
> it might be
> obvious how this is happening, I can't see it.
> Any help with this will be appreciated.
> 
> Thanks,
> Brad Johnson
> 
> 
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