main-loop: update comment for qemu_mutex_lock/unlock_iothread
Commit 49cf57281b
(vl: delay thread initialization after daemonization)
makes the global mutex is taken after daemonization instead before
daemonization by qemu_init_main_loop().
Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Message-Id: <1480566640-27264-2-git-send-email-baiyaowei@cmss.chinamobile.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -238,7 +238,7 @@ bool qemu_mutex_iothread_locked(void);
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* qemu_mutex_lock_iothread: Lock the main loop mutex.
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*
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* This function locks the main loop mutex. The mutex is taken by
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* qemu_init_main_loop and always taken except while waiting on
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* main() in vl.c and always taken except while waiting on
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* external events (such as with select). The mutex should be taken
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* by threads other than the main loop thread when calling
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* qemu_bh_new(), qemu_set_fd_handler() and basically all other
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@ -253,7 +253,7 @@ void qemu_mutex_lock_iothread(void);
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* qemu_mutex_unlock_iothread: Unlock the main loop mutex.
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*
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* This function unlocks the main loop mutex. The mutex is taken by
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* qemu_init_main_loop and always taken except while waiting on
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* main() in vl.c and always taken except while waiting on
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* external events (such as with select). The mutex should be unlocked
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* as soon as possible by threads other than the main loop thread,
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* because it prevents the main loop from processing callbacks,
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