[PATCH v6 0/3] vfio-ccw: Fix interrupt handling for HALT/CLEAR

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Hi Conny, Matt, Halil,

Here's one (last?) update to my proposal for handling the collision
between interrupts for START SUBCHANNEL and HALT/CLEAR SUBCHANNEL.

Only change here is to include Conny's suggestions on patch 3.

Thanks,
Eric

Changelog:
v5->v6:
 - Add a block comment and rename variable in patch 3 [CH]
 - Drop RFC tag [EF]

v4->v5:
 - Applied Conny's r-b to patches 1 and 3
 - Dropped patch 2 and 4
 - Use a "finished" flag in the interrupt completion path

Previous versions:
v5: https://lore.kernel.org/kvm/20210510205646.1845844-1-farman@xxxxxxxxxxxxx/
v4: https://lore.kernel.org/kvm/20210413182410.1396170-1-farman@xxxxxxxxxxxxx/
v3: https://lore.kernel.org/kvm/20200616195053.99253-1-farman@xxxxxxxxxxxxx/
v2: https://lore.kernel.org/kvm/20200513142934.28788-1-farman@xxxxxxxxxxxxx/
v1: https://lore.kernel.org/kvm/20200124145455.51181-1-farman@xxxxxxxxxxxxx/

Eric Farman (3):
  vfio-ccw: Check initialized flag in cp_init()
  vfio-ccw: Reset FSM state to IDLE inside FSM
  vfio-ccw: Serialize FSM IDLE state with I/O completion

 drivers/s390/cio/vfio_ccw_cp.c  |  4 ++++
 drivers/s390/cio/vfio_ccw_drv.c | 12 ++++++++++--
 drivers/s390/cio/vfio_ccw_fsm.c |  1 +
 drivers/s390/cio/vfio_ccw_ops.c |  2 --
 4 files changed, 15 insertions(+), 4 deletions(-)

-- 
2.25.1




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