Sign in
android-kvm
/
linux
/
e4dc9a4c31fe10d1751c542702afc85be8a5c56a
/
.
/
scripts
/
atomic
/
fallbacks
/
dec_unless_positive
blob: 8a2578f142689b8a58e42599e3e27eafdc532599 [
file
] [
log
] [
blame
]
cat
<<
EOF
static
inline
bool
$
{
atomic
}
_dec_unless_positive
(
$
{
atomic
}
_t
*
v
)
{
$
{
int
}
c
=
$
{
atomic
}
_read
(
v
);
do
{
if
(
unlikely
(
c
>
0
))
return
false
;
}
while
(!
$
{
atomic
}
_try_cmpxchg
(
v
,
&
c
,
c
-
1
));
return
true
;
}
EOF