1. NAME▲

__atomic_add_unless - add unless the number is already a given value

2. SYNOPSIS ▲

int __atomic_add_unless(atomic_t *  v , int  a , int  u );

3. ARGUMENTS ▲

v
    pointer of type atomic_t

a
    the amount to add to v...

u
    ...unless v is equal to u.

4. DESCRIPTION ▲

Atomically adds a to v, so long as v was not already u. Returns the old value of v.

5. COPYRIGHT ▲