SCHEDSTATS requires DEBUG_KERNEL (and PROC_FS) and therefore isn't a
good choice for enabling the scheduling statistics required for stolen
time.
Instead match the x86 configuration and select TASK_DELAY_ACCT and
TASKSTATS. This adds the dependencies of NET && MULTIUSER for arm64 KVM.
Suggested-by: Marc Zyngier <maz@xxxxxxxxxx>
Fixes: 8564d6372a7d ("KVM: arm64: Support stolen time reporting via shared structure")
Signed-off-by: Steven Price <steven.price@xxxxxxx>
---
Let's try again! Somehow I'd got it into my head that TASK_DELAY_ACCT
selected TASKSTATS not depended on. Even though I'd managed to get it
right in the comment!
arch/arm64/kvm/Kconfig | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index d8b88e40d223..a475c68cbfec 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -21,6 +21,8 @@ if VIRTUALIZATION
config KVM
bool "Kernel-based Virtual Machine (KVM) support"
depends on OF
+ # for TASKSTATS/TASK_DELAY_ACCT:
+ depends on NET && MULTIUSER
select MMU_NOTIFIER
select PREEMPT_NOTIFIERS
select HAVE_KVM_CPU_RELAX_INTERCEPT
@@ -39,7 +41,8 @@ config KVM
select IRQ_BYPASS_MANAGER
select HAVE_KVM_IRQ_BYPASS
select HAVE_KVM_VCPU_RUN_PID_CHANGE
- select SCHEDSTATS
+ select TASKSTATS
+ select TASK_DELAY_ACCT
---help---
Support hosting virtualized guest machines.
We don't support KVM with 16K page tables yet, due to the multiple
--
2.20.1
