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Diffstat (limited to 'include/linux/delayacct.h')
-rw-r--r--include/linux/delayacct.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
index 0ecbf9aad8e1..d955078a1441 100644
--- a/include/linux/delayacct.h
+++ b/include/linux/delayacct.h
@@ -18,6 +18,7 @@
#define _LINUX_DELAYACCT_H
#include <linux/sched.h>
+#include <linux/taskstats_kern.h>
/*
* Per-task flags relevant to delay accounting
@@ -35,6 +36,7 @@ extern void __delayacct_tsk_init(struct task_struct *);
extern void __delayacct_tsk_exit(struct task_struct *);
extern void __delayacct_blkio_start(void);
extern void __delayacct_blkio_end(void);
+extern int __delayacct_add_tsk(struct taskstats *, struct task_struct *);
static inline void delayacct_set_flag(int flag)
{
@@ -74,6 +76,16 @@ static inline void delayacct_blkio_end(void)
__delayacct_blkio_end();
}
+static inline int delayacct_add_tsk(struct taskstats *d,
+ struct task_struct *tsk)
+{
+ if (likely(!delayacct_on))
+ return -EINVAL;
+ if (!tsk->delays)
+ return 0;
+ return __delayacct_add_tsk(d, tsk);
+}
+
#else
static inline void delayacct_set_flag(int flag)
{}
@@ -89,6 +101,9 @@ static inline void delayacct_blkio_start(void)
{}
static inline void delayacct_blkio_end(void)
{}
+static inline int delayacct_add_tsk(struct taskstats *d,
+ struct task_struct *tsk)
+{ return 0; }
#endif /* CONFIG_TASK_DELAY_ACCT */
#endif