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Re: [dm-devel] [PATCH v6 00/13] Block cleanups



On Wed, Aug 22, 2012 at 10:03:57AM -0700, Kent Overstreet wrote:

[..]
> Kent Overstreet (13):
>   block: Generalized bio pool freeing
>   dm: Use bioset's front_pad for dm_rq_clone_bio_info
>   block: Add bio_reset()
>   pktcdvd: Switch to bio_kmalloc()
>   block: Kill bi_destructor
>   block: Consolidate bio_alloc_bioset(), bio_kmalloc()

This patch series says "Block Cleanups" in the subject. I think that
it can be divided in two parts. First part seems to be cleanup where
we get rid of ->bi_destructor and merge kmalloc() and allocation 
from bio_set.

Second part seems to be more of enhancing bio splitting functionality
and not necessarily a cleanup. So may be breaking this series in two
parts makes sense. First part is cleanup and second part is enhanced
bio splitting capabilities of block layer.

Thanks
Vivek
 
>   block: Avoid deadlocks with bio allocation by stacking drivers
>   block: Add an explicit bio flag for bios that own their bvec
>   block: Rename bio_split() -> bio_pair_split()
>   block: Introduce new bio_split()
>   block: Rework bio_pair_split()
>   block: Add bio_clone_bioset(), bio_clone_kmalloc()
>   block: Only clone bio vecs that are in use
> 
>  Documentation/block/biodoc.txt      |   5 -
>  block/blk-core.c                    |  10 +-
>  drivers/block/drbd/drbd_main.c      |  13 +-
>  drivers/block/drbd/drbd_req.c       |  18 +-
>  drivers/block/osdblk.c              |   3 +-
>  drivers/block/pktcdvd.c             |  73 ++-----
>  drivers/block/rbd.c                 |   8 +-
>  drivers/md/dm-crypt.c               |   9 -
>  drivers/md/dm-io.c                  |  11 -
>  drivers/md/dm.c                     |  68 ++----
>  drivers/md/linear.c                 |   6 +-
>  drivers/md/md.c                     |  44 +---
>  drivers/md/raid0.c                  |   8 +-
>  drivers/md/raid10.c                 |  23 +-
>  drivers/target/target_core_iblock.c |   9 -
>  fs/bio-integrity.c                  |  45 ----
>  fs/bio.c                            | 419 +++++++++++++++++++++++-------------
>  fs/exofs/ore.c                      |   5 +-
>  include/linux/bio.h                 | 155 +++++++------
>  include/linux/blk_types.h           |  16 +-
>  20 files changed, 434 insertions(+), 514 deletions(-)
> 
> -- 
> 1.7.12


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