[v2,0/4] nvme: improve error handling and ana_state to work well with dm-multipath

Message

Mike Snitzer April 15, 2021, 11:15 p.m. UTC

Hi,

I just rebased and tweaked these 4 patches ontop of v5.12-rc7.

Been carrying an older ~5.9 based version in RHEL8 (since RHEL8.3,
August 2020; yes the patchset I just mistakenly emailed instead of
this patchset):
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/log/?h=nvme-error-handling-fixes/for-5.9

RHEL9 is coming, would really prefer that these changes land upstream
rather than carry them within RHEL.

All review/feedback welcome.

Thanks,
Mike

Chao Leng (1):
  nvme: allow local retry for requests with REQ_FAILFAST_TRANSPORT set

Mike Snitzer (3):
  nvme: return BLK_STS_DO_NOT_RETRY if the DNR bit is set
  nvme: introduce FAILUP handling for REQ_FAILFAST_TRANSPORT
  nvme: decouple basic ANA log page re-read support from native multipathing

 drivers/nvme/host/core.c      | 45 +++++++++++++++++++++++++++++++++++++------
 drivers/nvme/host/multipath.c | 16 ++++++++++-----
 drivers/nvme/host/nvme.h      |  4 ++++
 include/linux/blk_types.h     |  8 ++++++++
 4 files changed, 62 insertions(+), 11 deletions(-)