diff mbox series

[1/2] KVM: arm64: Slightly optimize flush_context()

Message ID 97bf2743f3a302b3066aced02218b9da60690dd3.1681854412.git.christophe.jaillet@wanadoo.fr
State New
Headers
Series [1/2] KVM: arm64: Slightly optimize flush_context() |

Commit Message

Christophe JAILLET April 18, 2023, 9:47 p.m. UTC 
  bitmap_zero() is faster than bitmap_clear(), so use it to save a few
cycles.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 arch/arm64/kvm/vmid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Marc Zyngier April 21, 2023, 12:53 p.m. UTC | #1 
On Tue, 18 Apr 2023 23:47:37 +0200, Christophe JAILLET wrote:
> bitmap_zero() is faster than bitmap_clear(), so use it to save a few
> cycles.

Applied to next, thanks!

[1/2] KVM: arm64: Slightly optimize flush_context()
      commit: 4be8ddb48b1b6c6067fb59c846b9c6e19d6efe14
[2/2] KVM: arm64: Use the bitmap API to allocate bitmaps
      commit: a00e9e4319c2a8a8b166da028292de83190e39a4

Cheers,

	M.
diff mbox series

Patch

diff --git a/arch/arm64/kvm/vmid.c b/arch/arm64/kvm/vmid.c
index 08978d0672e7..bbf0677cfefa 100644
--- a/arch/arm64/kvm/vmid.c
+++ b/arch/arm64/kvm/vmid.c
@@ -47,7 +47,7 @@  static void flush_context(void)
 	int cpu;
 	u64 vmid;
 
-	bitmap_clear(vmid_map, 0, NUM_USER_VMIDS);
+	bitmap_zero(vmid_map, NUM_USER_VMIDS);
 
 	for_each_possible_cpu(cpu) {
 		vmid = atomic64_xchg_relaxed(&per_cpu(active_vmids, cpu), 0);