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| author | Shailabh Nagar <nagar@watson.ibm.com> | 2006-07-14 00:24:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-14 21:53:56 -0700 |
| commit | 6f44993fe1d7b2b097f6ac60cd5835c6f5ca0874 (patch) | |
| tree | 0f349f4e6c28cc5d11b7083273543a294c437216 /include/linux/delayacct.h | |
| parent | c757249af152c59fd74b85e52e8c090acb33d9c0 (diff) | |
| download | lwn-6f44993fe1d7b2b097f6ac60cd5835c6f5ca0874.tar.gz lwn-6f44993fe1d7b2b097f6ac60cd5835c6f5ca0874.zip | |
[PATCH] per-task-delay-accounting: delay accounting usage of taskstats interface
Usage of taskstats interface by delay accounting.
Signed-off-by: Shailabh Nagar <nagar@us.ibm.com>
Signed-off-by: Balbir Singh <balbir@in.ibm.com>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Peter Chubb <peterc@gelato.unsw.edu.au>
Cc: Erich Focht <efocht@ess.nec.de>
Cc: Levent Serinol <lserinol@gmail.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/delayacct.h')
| -rw-r--r-- | include/linux/delayacct.h | 15 |
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 |