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hv_kvp_daemon uses popen(3) and system(3) as convinience helper to launch external helpers. These helpers are invoked via a temporary shell process. There is no need to keep this temporary process around while the helper runs. Replace this temporary shell with the actual helper process via 'exec'. Signed-off-by: Olaf Hering <olaf@aepfle.de> Link: https://lore.kernel.org/linux-hyperv/20241202123520.27812-1-olaf@aepfle.de/ Signed-off-by: Wei Liu <wei.liu@kernel.org>