libceph: nuke time_sub()
Unused since ceph got merged into mainline I guess. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Alex Elder <elder@linaro.org>
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@ -93,15 +93,6 @@ enum {
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CEPH_MOUNT_SHUTDOWN,
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};
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/*
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* subtract jiffies
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*/
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static inline unsigned long time_sub(unsigned long a, unsigned long b)
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{
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BUG_ON(time_after(b, a));
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return (long)a - (long)b;
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}
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struct ceph_mds_client;
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/*
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