I found a inefficient behavior from multipage bvec. Large chunk DIO
scenario is that. This patch series could be a solution to improve it.

Changheun Lee (3):
  bio: limit bio max size
  ufs: set QUEUE_FLAG_LIMIT_BIO_SIZE
  bio: add limit_bio_size sysfs

 Documentation/ABI/testing/sysfs-block | 10 ++++++++++
 Documentation/block/queue-sysfs.rst   |  7 +++++++
 block/bio.c                           | 13 ++++++++++++-
 block/blk-settings.c                  | 17 +++++++++++++++++
 block/blk-sysfs.c                     |  3 +++
 drivers/scsi/scsi_lib.c               |  2 ++
 drivers/scsi/ufs/ufshcd.c             |  1 +
 include/linux/bio.h                   |  2 +-
 include/linux/blkdev.h                |  4 ++++
 include/scsi/scsi_host.h              |  2 ++
 10 files changed, 59 insertions(+), 2 deletions(-)

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2.29.0