[PATCH v2 6/7] target/riscv: Use QEMU_IOTHREAD_LOCK_GUARD in riscv_cpu_update_mip

[Richard Henderson]

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/riscv/cpu_helper.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 278d163803..4c4b404dad 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -610,7 +610,6 @@ uint64_t riscv_cpu_update_mip(RISCVCPU *cpu, uint64_t mask, 
uint64_t value)
     CPURISCVState *env = &cpu->env;
     CPUState *cs = CPU(cpu);
     uint64_t gein, vsgein = 0, vstip = 0, old = env->mip;
-    bool locked = false;
 
     if (riscv_cpu_virt_enabled(env)) {
         gein = get_field(env->hstatus, HSTATUS_VGEIN);
@@ -621,21 +620,14 @@ uint64_t riscv_cpu_update_mip(RISCVCPU *cpu, uint64_t 
mask, uint64_t value)
     mask = ((mask == MIP_VSTIP) && env->vstime_irq) ? 0 : mask;
     vstip = env->vstime_irq ? MIP_VSTIP : 0;
 
-    if (!qemu_mutex_iothread_locked()) {
-        locked = true;
-        qemu_mutex_lock_iothread();
-    }
+    WITH_QEMU_IOTHREAD_LOCK() {
+        env->mip = (env->mip & ~mask) | (value & mask);
 
-    env->mip = (env->mip & ~mask) | (value & mask);
-
-    if (env->mip | vsgein | vstip) {
-        cpu_interrupt(cs, CPU_INTERRUPT_HARD);
-    } else {
-        cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
-    }
-
-    if (locked) {
-        qemu_mutex_unlock_iothread();
+        if (env->mip | vsgein | vstip) {
+            cpu_interrupt(cs, CPU_INTERRUPT_HARD);
+        } else {
+            cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
+        }
     }
 
     return old;
-- 
2.34.1