ATOMIC_SUB_AND_TEST(9) Driver Basics ATOMIC_SUB_AND_TEST(9)NAME
atomic_sub_and_test - subtract value from variable and test result
SYNOPSIS
int atomic_sub_and_test(int i, atomic_t * v);
ARGUMENTS
i
integer value to subtract
v
pointer of type atomic_t
DESCRIPTION
Atomically subtracts i from v and returns true if the result is zero,
or false for all other cases.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 ATOMIC_SUB_AND_TEST(9)