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Re: [dm-devel] creating a dm-linear.ko in a current kernel.



Hey John... it's Jihn Strange... funny meeting you here on dm-devel. So your playing around with dm, huh?  I did a few months ago. I like the architecture, as you're seeing, the implementation lacks dicipline.  Hope things are going well for you guys at RSC.
-john




Sent from Samsung tablet



-------- Original message --------
From: John Utz <John Utz wdc com>
Date: 02/24/2014 3:44 PM (GMT-07:00)
To: device-mapper development <dm-devel redhat com>
Subject: Re: [dm-devel] creating a dm-linear.ko in a current kernel.


Solved my own issue methinks, the name of the module that i am finding in drivers/md/ is linear.ko, not dm-linear.ko. that was unexpected. i note further that there are other non 'dm- decorated' lkms in md as well, such as multipath, faulty, raid0, etc.

is there an implication associated with things decorated with dm- vs things not decorated with dm- in the md directory?

tnx!

johnu
________________________________________
From: dm-devel-bounces redhat com [dm-devel-bounces redhat com] on behalf of John Utz [John Utz wdc com]
Sent: Monday, February 24, 2014 2:01 PM
To: dm-devel redhat com
Subject: [dm-devel] creating a dm-linear.ko in a current kernel.

Hello;

I have a linear device that i am attempting to harness to device mapper.

My expectation that i developed based on my reading was that I could start from a dm-linear.c => dm-linear.ko and go from there.

But dm-linear.c gets linked into dm-mod.ko, not dm-linear.ko.

Has dm-linear always been part of dm-mod? i see some stuff on the net that implies the existence of dm-linear.ko, but i have poked around in menuconfig and i can find no specific entry to create it.

Any suggestions as to how to proceed would be greatly appreciated.

tnx!

johnu

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