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由 Peng Tao 提交于
The same function is used by idmap, gss and blocklayout code. Make it generic. Signed-off-by: NPeng Tao <peng_tao@emc.com> Signed-off-by: NJim Rees <rees@umich.edu> Cc: stable@kernel.org [3.0] Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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