diff mbox series

[v3,3/3] powerpc/time: no steal_time if !CONFIG_PPC_SPLPAR

Message ID 96d2828025d815e91e3946f6ef45a09d9a206ca3.1527610536.git.christophe.leroy@c-s.fr (mailing list archive)
State Superseded
Headers show
Series [v3,1/3] powerpc/time: inline arch_vtime_task_switch() | expand

Commit Message

Christophe Leroy May 29, 2018, 4:19 p.m. UTC 
If CONFIG_PPC_SPLPAR is not selected, steal_time will always
be NUL, so accounting it is pointless

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 New in v3
 
 arch/powerpc/kernel/time.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 7d6040233003..85d1b1ff45f3 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -346,7 +346,8 @@  void vtime_account_system(struct task_struct *tsk)
 	stime = vtime_delta(tsk, &stime_scaled, &steal_time);
 
 	stime -= min(stime, steal_time);
-	acct->steal_time += steal_time;
+	if (IS_ENABLED(CONFIG_PPC_SPLPAR))
+		acct->steal_time += steal_time;
 
 	if ((tsk->flags & PF_VCPU) && !irq_count()) {
 		acct->gtime += stime;
@@ -401,7 +402,7 @@  void vtime_flush(struct task_struct *tsk)
 	if (acct->gtime)
 		account_guest_time(tsk, cputime_to_nsecs(acct->gtime));
 
-	if (acct->steal_time)
+	if (IS_ENABLED(CONFIG_PPC_SPLPAR) && acct->steal_time)
 		account_steal_time(cputime_to_nsecs(acct->steal_time));
 
 	if (acct->idle_time)
@@ -425,7 +426,8 @@  void vtime_flush(struct task_struct *tsk)
 	acct->stime_scaled = 0;
 #endif
 	acct->gtime = 0;
-	acct->steal_time = 0;
+	if (IS_ENABLED(CONFIG_PPC_SPLPAR))
+		acct->steal_time = 0;
 	acct->idle_time = 0;
 	acct->stime = 0;
 	acct->hardirq_time = 0;