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* [PATCH v3 0/4] nvme: improve error handling and ana_state to work well with dm-multipath
@ 2021-04-16 22:06 Mike Snitzer
  2021-04-16 22:06 ` [PATCH v3 1/4] nvme: return BLK_STS_DO_NOT_RETRY if the DNR bit is set Mike Snitzer
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: Mike Snitzer @ 2021-04-16 22:06 UTC (permalink / raw)
  To: Christoph Hellwig, Jens Axboe; +Cc: dm-devel, linux-block, linux-nvme

Hi,

This patchset reflects changes needed to make NVMe error handling and
ANA state updates work well with dm-multipath (which always sets
REQ_FAILFAST_TRANSPORT).

RHEL8 has been carrying an older ~5.9 based version of this patchset
(since RHEL8.3, August 2020).

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

All review/feedback welcome.

Thanks,
Mike

v2 -> v3:
- Added Reviewed-by tags to BLK_STS_DO_NOT_RETRY patch.
- Eliminated __nvme_end_req() and added code comment to
  nvme_failup_req() in FAILUP handling patch.

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      | 42 +++++++++++++++++++++++++++++++++++++++---
 drivers/nvme/host/multipath.c | 16 +++++++++++-----
 drivers/nvme/host/nvme.h      |  4 ++++
 include/linux/blk_types.h     |  8 ++++++++
 4 files changed, 62 insertions(+), 8 deletions(-)

-- 
2.15.0


^ permalink raw reply	[flat|nested] 5+ messages in thread

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2021-04-16 22:06 [PATCH v3 0/4] nvme: improve error handling and ana_state to work well with dm-multipath Mike Snitzer
2021-04-16 22:06 ` [PATCH v3 1/4] nvme: return BLK_STS_DO_NOT_RETRY if the DNR bit is set Mike Snitzer
2021-04-16 22:06 ` [PATCH v3 2/4] nvme: allow local retry for requests with REQ_FAILFAST_TRANSPORT set Mike Snitzer
2021-04-16 22:06 ` [PATCH v3 3/4] nvme: introduce FAILUP handling for REQ_FAILFAST_TRANSPORT Mike Snitzer
2021-04-16 22:06 ` [PATCH v3 4/4] nvme: decouple basic ANA log page re-read support from native multipathing Mike Snitzer

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