Another round of mostly unrelated misc fixes.

Mostly small and/or unlikely issues, but they needed to be addressed.

v1->v2:
* Use the srcu only around kvm_s390_inject_vcpu()
* Wildly simplify the third patch: introduce gisa_test_ipm_gisc() and
  use it in get_all_floating_irqs() instead of gisa_tac_ipm_gisc()
* Use set_page_dirty() instead of set_page_dirty_lock(). In all
  scenarios we are holding an extra reference to the page, we don't
  need to also lock. Also move things around a little to avoid races.
* Fix return value of kvm_arch_prepare_memory_region()
* Fix return value being overwritten in patch 8
* Drop patches 6 and 7, they need more thought

Claudio Imbrenda (9):
  KVM: s390: Properly handle NULL pointer in dat_cond_set_storage_key()
  KVM: s390: Use srcu in kvm_arch_vcpu_unlocked_ioctl()
  KVM: s390: Fix get_all_floating_irqs()
  KVM: s390: Fix dirty marking in adapter_indicators_set*()
  KVM: s390: Fix pgste_get_trylock_multiple()
  KVM: s390: Fix IRQ injection with SIGP Stop and Store Status
  KVM: s390: Fix kvm_s390_clear_pv_state()
  KVM: s390: Fix potential tiny kernel stack leak
  KVM: s390: Fix _gaccess_shadow_fault()

 arch/s390/kvm/dat.c       |  13 ++--
 arch/s390/kvm/gaccess.c   |  10 +++
 arch/s390/kvm/interrupt.c | 125 ++++++++++++++++++++++----------------
 arch/s390/kvm/kvm-s390.c  |   6 +-
 arch/s390/kvm/pv.c        |   4 ++
 5 files changed, 96 insertions(+), 62 deletions(-)

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2.55.0