cpu-exec: remove unnecessary check of cpu->exit_request
authorPaolo Bonzini <pbonzini@redhat.com>
Tue, 7 Feb 2017 15:26:47 +0000 (16:26 +0100)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 24 Feb 2017 14:51:19 +0000 (15:51 +0100)
The cpu->exit_request check in cpu_loop_exec_tb is unnecessary,
because cpu->tcg_exit_req is always set after cpu->exit_request.
So let the TB exit and we will pick up the exit request later
in cpu_handle_interrupt.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
cpu-exec.c

index 7ddf66cf232cfefe060211d9356af81327a148dd..7db959c82172763fdeb9ad280333d3e2f158340c 100644 (file)
@@ -535,10 +535,6 @@ static inline void cpu_loop_exec_tb(CPUState *cpu, TranslationBlock *tb,
     uintptr_t ret;
     int32_t insns_left;
 
-    if (unlikely(atomic_read(&cpu->exit_request))) {
-        return;
-    }
-
     trace_exec_tb(tb, tb->pc);
     ret = cpu_tb_exec(cpu, tb);
     tb = (TranslationBlock *)(ret & ~TB_EXIT_MASK);