ATOMIC64_XCHG(9) Driver Basics ATOMIC64_XCHG(9) NAME atomic64_xchg - xchg atomic64 variable SYNOPSIS u64 atomic64_xchg(atomic64_t * ptr, u64 new_val); ARGUMENTS ptr pointer to type atomic64_t new_val value to assign DESCRIPTION Atomically xchgs the value of ptr to new_val and returns the old value. COPYRIGHT Kernel Hackers Manual 2.6. November 2013 ATOMIC64_XCHG(9)[top]
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