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3dfb4c1bf0
nr_cpus can help to save memory. So we should remind user of it. Signed-off-by: Zhou Wenjian <zhouwj-fnst@cn.fujitsu.com> Acked-by: Baoquan He <bhe@redhat.com> Acked-by: Xunlei Pang <xpang@redhat.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>