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acct, time: Change indentation in __acct_update_integrals()

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Change the indentation in __acct_update_integrals() to make the function
a little easier to read.

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Frederic Weisbecker <fweisbec@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: clark@redhat.com
Cc: eric.dumazet@gmail.com
Cc: fweisbec@gmail.com
Cc: luto@amacapital.net
Link: http://lkml.kernel.org/r/1455152907-18495-3-git-send-email-riel@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Rik van Riel 2016-02-10 20:08:25 -05:00 • committed by Ingo Molnar
parent 382c2fe994
commit b2add86edd
1 changed files with 23 additions and 22 deletions
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45
kernel/tsacct.c
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@ -125,31 +125,32 @@ void xacct_add_tsk(struct taskstats *stats, struct task_struct *p)
static void __acct_update_integrals(struct task_struct *tsk, static void __acct_update_integrals(struct task_struct *tsk,
cputime_t utime, cputime_t stime) cputime_t utime, cputime_t stime)
{ {
if (likely(tsk->mm)) { cputime_t time, dtime;
cputime_t time, dtime; unsigned long flags;
unsigned long flags; u64 delta;
u64 delta;
local_irq_save(flags); if (!likely(tsk->mm))
time = stime + utime; return;
dtime = time - tsk->acct_timexpd;
/* Avoid division: cputime_t is often in nanoseconds already. */
delta = cputime_to_nsecs(dtime);
if (delta < TICK_NSEC) local_irq_save(flags);
goto out; time = stime + utime;
dtime = time - tsk->acct_timexpd;
/* Avoid division: cputime_t is often in nanoseconds already. */
delta = cputime_to_nsecs(dtime);
tsk->acct_timexpd = time; if (delta < TICK_NSEC)
/* goto out;
* Divide by 1024 to avoid overflow, and to avoid division.
* The final unit reported to userspace is Mbyte-usecs, tsk->acct_timexpd = time;
* the rest of the math is done in xacct_add_tsk. /*
*/ * Divide by 1024 to avoid overflow, and to avoid division.
tsk->acct_rss_mem1 += delta * get_mm_rss(tsk->mm) >> 10; * The final unit reported to userspace is Mbyte-usecs,
tsk->acct_vm_mem1 += delta * tsk->mm->total_vm >> 10; * the rest of the math is done in xacct_add_tsk.
out: */
local_irq_restore(flags); tsk->acct_rss_mem1 += delta * get_mm_rss(tsk->mm) >> 10;
} tsk->acct_vm_mem1 += delta * tsk->mm->total_vm >> 10;
out:
local_irq_restore(flags);
} }
/** /**