Re: [PATCH V12 15/20] block: allow bio_for_each_segment_all() to iterate over multi-page bvec

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On Mon, Nov 26, 2018 at 10:17:15AM +0800, Ming Lei wrote:
> This patch introduces one extra iterator variable to bio_for_each_segment_all(),
> then we can allow bio_for_each_segment_all() to iterate over multi-page bvec.
> 
> Given it is just one mechannical & simple change on all bio_for_each_segment_all()
> users, this patch does tree-wide change in one single patch, so that we can
> avoid to use a temporary helper for this conversion.
> 
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>

Reviewed-by: Omar Sandoval <osandov@xxxxxx>

> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
> ---
>  block/bio.c                       | 27 ++++++++++++++++++---------
>  block/bounce.c                    |  6 ++++--
>  drivers/md/bcache/btree.c         |  3 ++-
>  drivers/md/dm-crypt.c             |  3 ++-
>  drivers/md/raid1.c                |  3 ++-
>  drivers/staging/erofs/data.c      |  3 ++-
>  drivers/staging/erofs/unzip_vle.c |  3 ++-
>  fs/block_dev.c                    |  6 ++++--
>  fs/btrfs/compression.c            |  3 ++-
>  fs/btrfs/disk-io.c                |  3 ++-
>  fs/btrfs/extent_io.c              |  9 ++++++---
>  fs/btrfs/inode.c                  |  6 ++++--
>  fs/btrfs/raid56.c                 |  3 ++-
>  fs/crypto/bio.c                   |  3 ++-
>  fs/direct-io.c                    |  4 +++-
>  fs/exofs/ore.c                    |  3 ++-
>  fs/exofs/ore_raid.c               |  3 ++-
>  fs/ext4/page-io.c                 |  3 ++-
>  fs/ext4/readpage.c                |  3 ++-
>  fs/f2fs/data.c                    |  9 ++++++---
>  fs/gfs2/lops.c                    |  6 ++++--
>  fs/gfs2/meta_io.c                 |  3 ++-
>  fs/iomap.c                        |  6 ++++--
>  fs/mpage.c                        |  3 ++-
>  fs/xfs/xfs_aops.c                 |  5 +++--
>  include/linux/bio.h               | 11 +++++++++--
>  include/linux/bvec.h              | 30 ++++++++++++++++++++++++++++++
>  27 files changed, 125 insertions(+), 45 deletions(-)



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