diff options
Diffstat (limited to 'scripts/atomic/fallbacks/inc_not_zero')
| -rw-r--r-- | scripts/atomic/fallbacks/inc_not_zero | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/scripts/atomic/fallbacks/inc_not_zero b/scripts/atomic/fallbacks/inc_not_zero new file mode 100644 index 000000000000..a7c45c8d107c --- /dev/null +++ b/scripts/atomic/fallbacks/inc_not_zero @@ -0,0 +1,14 @@ +cat <<EOF +/** + * ${atomic}_inc_not_zero - increment unless the number is zero + * @v: pointer of type ${atomic}_t + * + * Atomically increments @v by 1, if @v is non-zero. + * Returns true if the increment was done. + */ +static inline bool +${atomic}_inc_not_zero(${atomic}_t *v) +{ + return ${atomic}_add_unless(v, 1, 0); +} +EOF |