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In libceph, ceph_tcp_sendpage() does the following checks before handle the page by network layer's zero copy sendpage method, if (page_count(page) >= 1 && !PageSlab(page)) This check is exactly what sendpage_ok() does. This patch replace the open coded checks by sendpage_ok() as a code cleanup. Signed-off-by: Coly Li <colyli@suse.de> Acked-by: Jeff Layton <jlayton@kernel.org> Cc: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>