diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-05-02 20:08:52 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-05-15 15:32:45 +0200 |
| commit | 2d02494f5a90f2e4b3c4c6acc85ec94674cdc431 (patch) | |
| tree | 8032438de5b55282976583b111d02d9379ff3966 /kernel/sched.c | |
| parent | sched, timers: move calc_load() to scheduler (diff) | |
| download | linux-2d02494f5a90f2e4b3c4c6acc85ec94674cdc431.tar.xz linux-2d02494f5a90f2e4b3c4c6acc85ec94674cdc431.zip | |
sched, timers: cleanup avenrun users
avenrun is an rough estimate so we don't have to worry about
consistency of the three avenrun values. Remove the xtime lock
dependency and provide a function to scale the values. Cleanup the
users.
[ Impact: cleanup ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index f4eb88153bd1..497c09ba61e7 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2868,6 +2868,21 @@ static unsigned long calc_load_update; unsigned long avenrun[3]; EXPORT_SYMBOL(avenrun); +/** + * get_avenrun - get the load average array + * @loads: pointer to dest load array + * @offset: offset to add + * @shift: shift count to shift the result left + * + * These values are estimates at best, so no need for locking. + */ +void get_avenrun(unsigned long *loads, unsigned long offset, int shift) +{ + loads[0] = (avenrun[0] + offset) << shift; + loads[1] = (avenrun[1] + offset) << shift; + loads[2] = (avenrun[2] + offset) << shift; +} + static unsigned long calc_load(unsigned long load, unsigned long exp, unsigned long active) { |