Re: [Qemu-devel] [PATCH v9 7/7] monitor: add lock to protect mon_fdsets

[Markus Armbruster]

Peter Xu <address@hidden> writes:

> Introduce a new global big lock for mon_fdsets.  Take it where needed.
>
> The monitor_fdset_get_fd() handling is a bit tricky: now we need to call
> qemu_mutex_unlock() which might pollute errno, so we need to make sure
> the correct errno be passed up to the callers.  To make things simpler,
> we let monitor_fdset_get_fd() return the -errno directly when error
> happens, then in qemu_open() we move it back into errno.
>
> Signed-off-by: Peter Xu <address@hidden>

Reviewed-by: Markus Armbruster <address@hidden>