[PATCH v2 0/4] md/raid1,raid10: fix write-path reference leaks and clean up error handling

Hi,

This series fixes several write-path failure handling issues in raid1 and
raid10 and then follows up with a cleanup of raid1_write_request().

The first two patches fix writes_pending leaks caused by failure paths
that complete bios without reaching the normal write completion path.
The raid1 fix also addresses a barrier reference leak when
wait_blocked_rdev() fails after wait_barrier() succeeds.

The third patch fixes additional writes_pending and barrier reference
leaks in raid10 discard handling.

The final patch simplifies raid1_write_request() error handling.

Patches:
md/raid1: fix writes_pending and barrier reference leaks on write failures
md/raid10: fix writes_pending leak on write request failures
md/raid10: fix writes_pending and barrier reference leaks on discard failures
md/raid1: simplify raid1_write_request() error handling

Changes in v2:
 - fix writes_pending leaks in addition to the barrier reference leaks
 - add raid10 fixes for analogous write and discard failure paths
 - add a follow-up cleanup patch to simplify raid1_write_request()
 - simplifies raid1_write_request() error handling.
 - Link v1: https://lore.kernel.org/linux-raid/[email protected]/

Thanks,
Abd-Alrhman

Abd-Alrhman Masalkhi (4):
  md/raid1: fix writes_pending and barrier reference leaks on write
    failures
  md/raid10: fix writes_pending leak on write request failures
  md/raid10: fix writes_pending and barrier reference leaks on discard
    failures
  md/raid1: simplify raid1_write_request() error handling

 drivers/md/raid1.c  | 74 ++++++++++++++++++++++++---------------------
 drivers/md/raid10.c | 28 ++++++++++++-----
 2 files changed, 60 insertions(+), 42 deletions(-)

-- 
2.43.0