Since the codes for adding an entry and removing an entry are similar, we can
save some lines by using "if (is_delete) { ... } else { ... }" branches.
Signed-off-by: NTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: NSerge Hallyn <serue@us.ibm.com>
Signed-off-by: NJames Morris <jmorris@namei.org>