KVM: arm64: Select TASK_DELAY_ACCT+TASKSTATS rather than SCHEDSTATS

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@kernel.org>
Fixes: 8564d6372a7d ("KVM: arm64: Support stolen time reporting via shared structure")
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>

diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index d8b88e4..a475c68 100644 (file)
--- 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