[GIT PULL] nvme fixes for 5.12

[Christoph Hellwig]

The following changes since commit 1e28eed17697bcf343c6743f0028cc3b5dd88bf0:

  Linux 5.12-rc3 (2021-03-14 14:41:02 -0700)

are available in the Git repository at:

  git://git.infradead.org/nvme.git tags/nvme-5.12-20210319

for you to fetch changes up to bac04454ef9fada009f0572576837548b190bf94:

  nvmet-tcp: fix kmap leak when data digest in use (2021-03-18 05:39:18 +0100)

----------------------------------------------------------------
nvme fixes for 5.12

 - fix tag allocation for keep alive
 - fix a unit mismatch for the Write Zeroes limits
 - various TCP transport fixes (Sagi Grimberg, Elad Grupi)
 - fix iosqes and iocqes validation for discovery controllers (Sagi Grimberg)

----------------------------------------------------------------
Christoph Hellwig (4):
      nvme-fabrics: only reserve a single tag
      nvme: merge nvme_keep_alive into nvme_keep_alive_work
      nvme: allocate the keep alive request using BLK_MQ_REQ_NOWAIT
      nvme: fix Write Zeroes limitations

Elad Grupi (1):
      nvmet-tcp: fix kmap leak when data digest in use

Sagi Grimberg (5):
      nvme-tcp: fix a NULL deref when receiving a 0-length r2t PDU
      nvme-tcp: fix misuse of __smp_processor_id with preemption enabled
      nvme-tcp: fix possible hang when failing to set io queues
      nvme-rdma: fix possible hang when failing to set io queues
      nvmet: don't check iosqes,iocqes for discovery controllers

 drivers/nvme/host/core.c    | 64 +++++++++++++++------------------------------
 drivers/nvme/host/fabrics.h |  7 +++++
 drivers/nvme/host/fc.c      |  4 +--
 drivers/nvme/host/rdma.c    | 11 +++++---
 drivers/nvme/host/tcp.c     | 20 ++++++++++----
 drivers/nvme/target/core.c  | 17 +++++++++---
 drivers/nvme/target/loop.c  |  4 +--
 drivers/nvme/target/tcp.c   |  2 +-
 8 files changed, 69 insertions(+), 60 deletions(-)