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fix locking error with current_tb 

Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
This commit is contained in:
Riku Voipio 2010-01-20 12:56:27 +02:00
parent c4ab7899f2
commit 26bc95a037
1 changed files with 2 additions and 2 deletions
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4
exec.c
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@ -1537,15 +1537,15 @@ static void cpu_unlink_tb(CPUState *env)
TranslationBlock *tb; TranslationBlock *tb;
static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED; static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED;
spin_lock(&interrupt_lock);
tb = env->current_tb; tb = env->current_tb;
/* if the cpu is currently executing code, we must unlink it and /* if the cpu is currently executing code, we must unlink it and
all the potentially executing TB */ all the potentially executing TB */
if (tb) { if (tb) {
spin_lock(&interrupt_lock);
env->current_tb = NULL; env->current_tb = NULL;
tb_reset_jump_recursive(tb); tb_reset_jump_recursive(tb);
spin_unlock(&interrupt_lock);
} }
spin_unlock(&interrupt_lock);
} }
/* mask must never be zero, except for A20 change call */ /* mask must never be zero, except for A20 change call */