[dm-devel] store a pointer to the block_device in struct bio (again)
Jens Axboe
axboe at kernel.dk
Fri Dec 4 16:43:00 UTC 2020
On 12/1/20 9:54 AM, Christoph Hellwig wrote:
> Hi Jens,
>
> this series switches back from storing the gendisk + partno to storing
> a block_device pointer in struct bio. The reason is two fold: for one
> the new struct block_device actually is always available, removing the
> need to avoid originally. Second the merge struct block_device is much
> more useful than the old one, as storing it avoids the need for looking
> up what used to be hd_struct during partition remapping and I/O
> accounting.
>
> Note that this series depends on the posted but not merged
> "block tracepoint cleanups" series.
Applied, thanks.
--
Jens Axboe
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