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Re: [dm-devel] [PATCH v7 9/9] block: Avoid deadlocks with bio allocation by stacking drivers



On Wed, Aug 29, 2012 at 09:50:06AM -0700, Kent Overstreet wrote:
> The other thing we could do is make the rescuer thread per block device
> (which arguably makes more sense than per bio_set anyways), then
> associate bio_sets with specific block devices/rescuers.
 
For dm, it's equivalent - already one bioset required per live device:
dm_alloc_md_mempools().

Alasdair


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