Re: [PATCH 2/3] block: Add badblock management for gendisks

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"Verma, Vishal L" <vishal.l.verma@xxxxxxxxx> writes:

> On Wed, 2015-11-25 at 10:37 -0500, Jeff Moyer wrote:
>> "Verma, Vishal L" <vishal.l.verma@xxxxxxxxx> writes:
>> 
>> > On Tue, 2015-11-24 at 14:14 -0500, Jeff Moyer wrote:
>> > > 
>> > > I'm not sure whether it makes sense to continue without badblock
>> > > management for the RAID code.  I was hoping Neil would comment on
>> > > that.
>> > > 
>> > > -Jeff
>> > 
>> > Not sure I follow? I believe I've kept all the badblocks
>> > functionality
>> > RAID already had..
>> 
>> What I mean to say is that the RAID code had previously embedded the
>> badblocks structure in one of its other data structures.  As a result,
>> you would never get an allocation failure for it.
>> 
> Ah I see - I don't think that has effectively changed. 'rdev' still
> contains a statically allocated badblocks structure (as opposed to
> gendisk, which just stores a pointer). md used to dynamically allocate
> the storage space inside badblocks (bb->page), and that is still the
> case using badblocks_init.

Ah, ok.  Sorry I didn't dig into that further.

Thanks,
Jeff
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