1ATOMIC64_SUB(9)                  Driver Basics                 ATOMIC64_SUB(9)
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NAME

6       atomic64_sub - subtract the atomic64 variable
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SYNOPSIS

9       void atomic64_sub(u64 delta, atomic64_t * ptr);
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ARGUMENTS

12       delta
13           integer value to subtract
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15       ptr
16           pointer to type atomic64_t
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DESCRIPTION

19       Atomically subtracts delta from ptr.
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COPYRIGHT

22Kernel Hackers Manual 2.6.         June 2019                   ATOMIC64_SUB(9)