Re: [PATCH 37/45] block: allocate struct hd_struct as part of struct bdev_inode

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On 11/28/20 5:15 PM, Christoph Hellwig wrote:
Allocate hd_struct together with struct block_device to pre-load
the lifetime rule changes in preparation of merging the two structures.

Note that part0 was previously embedded into struct gendisk, but is
a separate allocation now, and already points to the block_device instead
of the hd_struct.  The lifetime of struct gendisk is still controlled by
the struct device embedded in the part0 hd_struct.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
  block/blk-core.c                   | 16 ++++---
  block/blk-flush.c                  |  2 +-
  block/blk-merge.c                  |  2 -
  block/blk.h                        | 21 ----------
  block/genhd.c                      | 50 +++++++++-------------
  block/partitions/core.c            | 67 +++---------------------------
  drivers/block/drbd/drbd_receiver.c |  2 +-
  drivers/block/drbd/drbd_worker.c   |  3 +-
  drivers/block/zram/zram_drv.c      |  2 +-
  drivers/md/dm.c                    |  4 +-
  drivers/md/md.c                    |  2 +-
  fs/block_dev.c                     | 39 ++++++-----------
  include/linux/blk_types.h          |  2 +-
  include/linux/genhd.h              | 14 +++----
  include/linux/part_stat.h          |  4 +-
  15 files changed, 61 insertions(+), 169 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                Kernel Storage Architect
hare@xxxxxxx                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer





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