diff mbox series

[v2,02/26] KVM: x86/mmu: Use a bool for direct

Message ID 20220311002528.2230172-3-dmatlack@google.com (mailing list archive)
State Handled Elsewhere
Headers show
Series Extend Eager Page Splitting to the shadow MMU | expand

Commit Message

David Matlack March 11, 2022, 12:25 a.m. UTC
The parameter "direct" can either be true or false, and all of the
callers pass in a bool variable or true/false literal, so just use the
type bool.

No functional change intended.

Signed-off-by: David Matlack <dmatlack@google.com>
---
 arch/x86/kvm/mmu/mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Peter Xu March 15, 2022, 7:46 a.m. UTC | #1
On Fri, Mar 11, 2022 at 12:25:04AM +0000, David Matlack wrote:
> The parameter "direct" can either be true or false, and all of the
> callers pass in a bool variable or true/false literal, so just use the
> type bool.
> 
> No functional change intended.
> 
> Signed-off-by: David Matlack <dmatlack@google.com>

If we care about this.. how about convert another one altogether?

TRACE_EVENT(kvm_hv_stimer_expiration,
	TP_PROTO(int vcpu_id, int timer_index, int direct, int msg_send_result),
	TP_ARGS(vcpu_id, timer_index, direct, msg_send_result),

Thanks,
David Matlack March 22, 2022, 6:21 p.m. UTC | #2
On Tue, Mar 15, 2022 at 12:46 AM Peter Xu <peterx@redhat.com> wrote:
>
> On Fri, Mar 11, 2022 at 12:25:04AM +0000, David Matlack wrote:
> > The parameter "direct" can either be true or false, and all of the
> > callers pass in a bool variable or true/false literal, so just use the
> > type bool.
> >
> > No functional change intended.
> >
> > Signed-off-by: David Matlack <dmatlack@google.com>
>
> If we care about this.. how about convert another one altogether?
>
> TRACE_EVENT(kvm_hv_stimer_expiration,
>         TP_PROTO(int vcpu_id, int timer_index, int direct, int msg_send_result),
>         TP_ARGS(vcpu_id, timer_index, direct, msg_send_result),

My preference would be to keep this commit specific to uses of
"direct" that are related to shadow pages.

The parameter `direct` in trace_kvm_hv_stimer_expiration() looks like
it could be converted as well, but is a different concept altogether
despite having the same variable name.

>
> Thanks,
>
> --
> Peter Xu
>
diff mbox series

Patch

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 3ad67f70e51c..146df73a982e 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -1706,7 +1706,7 @@  static void drop_parent_pte(struct kvm_mmu_page *sp,
 	mmu_spte_clear_no_track(parent_pte);
 }
 
-static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu, int direct)
+static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu, bool direct)
 {
 	struct kvm_mmu_page *sp;
 
@@ -2031,7 +2031,7 @@  static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
 					     gfn_t gfn,
 					     gva_t gaddr,
 					     unsigned level,
-					     int direct,
+					     bool direct,
 					     unsigned int access)
 {
 	union kvm_mmu_page_role role;