Conghui Chen 810305be98 hv: sched: disable interrupt when grab schedule spinlock ...

After moving softirq to following interrupt path, softirq handler might
break in the schedule spinlock context and try to grab the lock again,
then deadlock.

Disable interrupt with schedule spinlock context.
For the IRQ disable/restore operations:
  CPU_INT_ALL_DISABLE(&rflag)
  CPU_INT_ALL_RESTORE(rflag)
each takes 50~60 cycles.

renaming: get_schedule_lock -> obtain_schedule_lock

Tracked-On: #3813
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

2019-10-25 13:00:21 +08:00

..

arch/x86

hv: sched: decouple scheduler from schedule framework

2019-10-25 13:00:21 +08:00

common

hv: sched: disable interrupt when grab schedule spinlock

2019-10-25 13:00:21 +08:00

debug

SEP/SOCWATCH change variable names

2019-09-16 15:54:34 +08:00

dm

hv[v2]: remove registration of default port IO and MMIO handlers

2019-10-24 13:21:19 +08:00

hw

hv: vpci: remove pci_msi_cap in pci_pdev

2019-10-14 15:09:03 +08:00

lib

hv: add ACPI support for pre-launched VMs

2019-08-29 10:12:25 +08:00

public

hv: make hypercall HC_CREATE_VCPU empty

2019-09-24 11:58:45 +08:00