table of contents
| ATOMIC_ADD_UNLESS(9) | Driver Basics | ATOMIC_ADD_UNLESS(9) |
NAME¶
atomic_add_unless - add unless the number is already a given value
SYNOPSIS¶
int atomic_add_unless(atomic_t * v, int a, int u);
ARGUMENTS¶
v
pointer of type atomic_t
a
the amount to add to v...
u
...unless v is equal to u.
DESCRIPTION¶
Atomically adds a to v, so long as v was not already u. Returns non-zero if v was not u, and zero otherwise.
COPYRIGHT¶
| April 2023 | Kernel Hackers Manual 2.6. |