Re: [dm-devel] [RFC][PATCH] Simplify dm_get_device restriction combining

[Mike Christie <mikenc us ibm com>]

Christophe Saout wrote:

> Am Di, den 20.01.2004 schrieb Mike Christie um 22:23:
>
>
> > Is there a target that uses the the limit variable for something else? I 
> > just did a grep through the source so I do not know for sure. Or will 
> > this be a problem with how the v1-ioctl binds and sets up tables - I am 
> > not too familir with it?
>
>
> It seems you are right. The per-target restrictions in dm_target->limits
> are only used to create the restrictions for the whole table. My last
> patch used this per-target restrictions though since it seemed useful.
> The additional check I added  only needs the maximum hardsect size
> anyway and only before the target gets added to the table so I could do
> a quick walk of the target's devices there instead.

I think my suggestion would ugly up the nice layering the table, target, 
and devices have, so forget everything I said. Sorry about that.

When you posted I was looking at that code, and I saw that nobody was 
currently using io restrictions.