diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2012-11-13 14:20:55 +0100 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2013-01-27 19:23:31 +0100 |
| commit | 6fac4829ce0ef9b7f24369086ce5f0e9f38d37bc (patch) | |
| tree | 44da712b66d778c2fd701f9c96b00e108530e1a9 /drivers/isdn | |
| parent | 3f4724ea85b7d9055a9976fa8f30b471bdfbca93 (diff) | |
cputime: Use accessors to read task cputime stats
This is in preparation for the full dynticks feature. While
remotely reading the cputime of a task running in a full
dynticks CPU, we'll need to do some extra-computation. This
way we can account the time it spent tickless in userspace
since its last cputime snapshot.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/mISDN/stack.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c index 5f21f629b7a..deda591f70b 100644 --- a/drivers/isdn/mISDN/stack.c +++ b/drivers/isdn/mISDN/stack.c @@ -18,6 +18,7 @@ #include <linux/slab.h> #include <linux/mISDNif.h> #include <linux/kthread.h> +#include <linux/sched.h> #include "core.h" static u_int *debug; @@ -202,6 +203,9 @@ static int mISDNStackd(void *data) { struct mISDNstack *st = data; +#ifdef MISDN_MSG_STATS + cputime_t utime, stime; +#endif int err = 0; sigfillset(¤t->blocked); @@ -303,9 +307,10 @@ mISDNStackd(void *data) "msg %d sleep %d stopped\n", dev_name(&st->dev->dev), st->msg_cnt, st->sleep_cnt, st->stopped_cnt); + task_cputime(st->thread, &utime, &stime); printk(KERN_DEBUG "mISDNStackd daemon for %s utime(%ld) stime(%ld)\n", - dev_name(&st->dev->dev), st->thread->utime, st->thread->stime); + dev_name(&st->dev->dev), utime, stime); printk(KERN_DEBUG "mISDNStackd daemon for %s nvcsw(%ld) nivcsw(%ld)\n", dev_name(&st->dev->dev), st->thread->nvcsw, st->thread->nivcsw); |