Re: [PATCH 16/33] accel/tcg/cpu-exec: Use RCU_READ_LOCK_GUARD

[Philippe Mathieu-Daudé]

On 28/1/24 05:41, Richard Henderson wrote:

From: Philippe Mathieu-Daudé <phi...@linaro.org>

Replace the manual rcu_read_(un)lock calls in cpu_exec().

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Message-Id: <20240124074201.8239-2-phi...@linaro.org>
[rth: Use RCU_READ_LOCK_GUARD not WITH_RCU_READ_LOCK_GUARD]

Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>

Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
  accel/tcg/cpu-exec.c | 4 +---
  1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 40c268bfa1..950dad63cb 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -1050,7 +1050,7 @@ int cpu_exec(CPUState *cpu)
          return EXCP_HALTED;
      }

- rcu_read_lock();

+    RCU_READ_LOCK_GUARD();
      cpu_exec_enter(cpu);

/*

@@ -1064,8 +1064,6 @@ int cpu_exec(CPUState *cpu)
      ret = cpu_exec_setjmp(cpu, &sc);

cpu_exec_exit(cpu);

-    rcu_read_unlock();
-
      return ret;
  }