Re: [PATCH] 1/1: Device-Mapper: Remove 1024 devices limitation

[Andrew Morton]

Kevin Corry <kevcorry@xxxxxxxxxx> wrote:
>
> Remove the limitation of 1024 DM devices.

That seems to be an awful lot of fuss just to maintain a bitmap.

What is a realistic useful upper bound on the minors?  Would it not be sufficient
to increase the size of the statically allocated bitmap?

Did you consider going to a different data structure altogether?  lib/radix-tree.c and
lib/idr.c provide appropriate ones.
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