KVM: arm64: Slightly optimize flush_context()

bitmap_zero() is faster than bitmap_clear(), so use it to save a few
cycles.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/97bf2743f3a302b3066aced02218b9da60690dd3.1681854412.git.christophe.jaillet@wanadoo.fr

diff --git a/arch/arm64/kvm/vmid.c b/arch/arm64/kvm/vmid.c
index 08978d0672e7e947b0afbca0eb7d5ae0d9be440a..bbf0677cfefa9c8d2fc4f8157194589673ae1a02 100644 (file)
--- 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);