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[Qemu-devel] [PATCH 3/3] cpu-exec: remove unnecessary check of cpu->exit
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 3/3] cpu-exec: remove unnecessary check of cpu->exit_request |
Date: |
Tue, 21 Feb 2017 13:46:38 +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 <address@hidden>
---
cpu-exec.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/cpu-exec.c b/cpu-exec.c
index bf126dd..db1de5a 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -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);
--
2.9.3