arch/tile: revert comment for atomic64_add_unless().
It still returns whether @v was not @u, not the old value, unlike __atomic_add_unless(). Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Arun Sharma <asharma@fb.com>
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@ -200,7 +200,7 @@ static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
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* @u: ...unless v is equal to u.
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*
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* Atomically adds @a to @v, so long as @v was not already @u.
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* Returns the old value of @v.
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* Returns non-zero if @v was not @u, and zero otherwise.
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*/
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static inline u64 atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
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{
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