On Tue, Apr 10, 2018 at 08:49:13PM +0800, Peter Xu wrote:
> cur_mon was only used in main loop so we don't really need that to be
> per-thread variable.  Now it's possible that we have more than one
> thread to operate on it.  Let's start to let it be per-thread variable.

Trying to understand the reason for this patch:

Are there any users of per-thread cur_mon?


Does this patch fix a bug?

> In case we'll create threads within a valid cur_mon setup, we'd better
> let the child threads to inherit the cur_mon from parent thread too.  Do
> that for both posix and win32 threads.

Without actual users I don't like this.  It sounds like "let's make it
global just in case something needs it some day".

It's ugly for QEMU's thread API to know about the monitor - that's a
layering violation.

If there's a legitimate need I think this patch might be necessary, but
I don't see enough justification to do this yet.


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