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authorFrederic Weisbecker <fweisbec@gmail.com>2012-11-21 16:26:44 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2012-11-28 17:07:57 +0100
commite80d0a1ae8bb8fee0edd37427836f108b30f596b (patch)
tree437db8b1643e39d3d114a7c0e3c913455e693b70 /kernel/sys.c
parenta634f93335daa8f38180a0e576ccd68a73c36eaf (diff)
downloadlwn-e80d0a1ae8bb8fee0edd37427836f108b30f596b.tar.gz
lwn-e80d0a1ae8bb8fee0edd37427836f108b30f596b.zip
cputime: Rename thread_group_times to thread_group_cputime_adjusted
We have thread_group_cputime() and thread_group_times(). The naming doesn't provide enough information about the difference between these two APIs. To lower the confusion, rename thread_group_times() to thread_group_cputime_adjusted(). This name better suggests that it's a version of thread_group_cputime() that does some stabilization on the raw cputime values. ie here: scale on top of CFS runtime stats and bound lower value for monotonicity. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index e6e0ece5f6a0..265b37690421 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1046,7 +1046,7 @@ void do_sys_times(struct tms *tms)
cputime_t tgutime, tgstime, cutime, cstime;
spin_lock_irq(&current->sighand->siglock);
- thread_group_times(current, &tgutime, &tgstime);
+ thread_group_cputime_adjusted(current, &tgutime, &tgstime);
cutime = current->signal->cutime;
cstime = current->signal->cstime;
spin_unlock_irq(&current->sighand->siglock);
@@ -1704,7 +1704,7 @@ static void k_getrusage(struct task_struct *p, int who, struct rusage *r)
utime = stime = 0;
if (who == RUSAGE_THREAD) {
- task_times(current, &utime, &stime);
+ task_cputime_adjusted(current, &utime, &stime);
accumulate_thread_rusage(p, r);
maxrss = p->signal->maxrss;
goto out;
@@ -1730,7 +1730,7 @@ static void k_getrusage(struct task_struct *p, int who, struct rusage *r)
break;
case RUSAGE_SELF:
- thread_group_times(p, &tgutime, &tgstime);
+ thread_group_cputime_adjusted(p, &tgutime, &tgstime);
utime += tgutime;
stime += tgstime;
r->ru_nvcsw += p->signal->nvcsw;