[PATCH 0/3] Fix bio splitting in the crypto fallback code

[Bart Van Assche <bvanassche@acm.org>]

Hi Jens,

When using the crypto fallback code, large bios are split twice. A first
time by bio_split_to_limits() and a second time by the crypto fallback
code. Additionally, this causes bios not to be submitted in LBA error and
hence triggers write errors for zoned block devices. This patch series
fixes this by splitting bios once. Please consider this patch series for
the next merge window.

Thanks,

Bart.

Bart Van Assche (3):
  block: Split blk_crypto_fallback_split_bio_if_needed()
  block: Introduce the BLK_FEAT_CALLS_BIO_SPLIT_TO_LIMITS flag
  block: Rework splitting of encrypted bios

 block/bio.c                 |  3 +++
 block/blk-core.c            | 19 ++++++++-----
 block/blk-crypto-fallback.c | 53 ++++++++++++++++++++-----------------
 block/blk-crypto-internal.h |  7 +++++
 block/blk-crypto.c          |  3 ++-
 block/blk-merge.c           | 13 +++++++--
 block/blk-mq.c              |  3 ++-
 block/blk.h                 |  9 +++++++
 include/linux/blk_types.h   |  1 +
 include/linux/blkdev.h      |  6 ++++-
 10 files changed, 81 insertions(+), 36 deletions(-)