switch the block layer to use kmap_local_page

[Ira Weiny]

On Tue, Jun 08, 2021 at 06:05:47PM +0200, Christoph Hellwig wrote:
> Hi all,
> 
> this series switches the core block layer code and all users of the
> existing bvec kmap helpers to use kmap_local_page.  Drivers that
> currently use open coded kmap_atomic calls will converted in a follow
> on series.

Other than the missing flush_dcache's.

For the series.

Reviewed-by: Ira Weiny <ira.weiny at intel.com>

> 
> Diffstat:
>  arch/mips/include/asm/mach-rc32434/rb.h |    2 -
>  block/bio-integrity.c                   |   14 ++++------
>  block/bio.c                             |   37 +++++++---------------------
>  block/blk-map.c                         |    2 -
>  block/bounce.c                          |   35 ++++++--------------------
>  block/t10-pi.c                          |   16 ++++--------
>  drivers/block/ps3disk.c                 |   19 ++------------
>  drivers/block/rbd.c                     |   15 +----------
>  drivers/md/dm-writecache.c              |    5 +--
>  include/linux/bio.h                     |   42 --------------------------------
>  include/linux/bvec.h                    |   27 ++++++++++++++++++--
>  include/linux/highmem.h                 |    4 +--
>  12 files changed, 64 insertions(+), 154 deletions(-)