diff options
Diffstat (limited to 'include/linux/res_counter.h')
| -rw-r--r-- | include/linux/res_counter.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h index eeb3f774977..5e60a4f3424 100644 --- a/include/linux/res_counter.h +++ b/include/linux/res_counter.h @@ -99,4 +99,27 @@ int res_counter_charge(struct res_counter *counter, unsigned long val); void res_counter_uncharge_locked(struct res_counter *counter, unsigned long val); void res_counter_uncharge(struct res_counter *counter, unsigned long val); +static inline bool res_counter_limit_check_locked(struct res_counter *cnt) +{ + if (cnt->usage < cnt->limit) + return true; + + return false; +} + +/* + * Helper function to detect if the cgroup is within it's limit or + * not. It's currently called from cgroup_rss_prepare() + */ +static inline bool res_counter_check_under_limit(struct res_counter *cnt) +{ + bool ret; + unsigned long flags; + + spin_lock_irqsave(&cnt->lock, flags); + ret = res_counter_limit_check_locked(cnt); + spin_unlock_irqrestore(&cnt->lock, flags); + return ret; +} + #endif |