[PATCH v5 3/3] powerpc/time: no steal_time when CONFIG_PPC_SPLPAR is not selected

[Christophe Leroy]

If CONFIG_PPC_SPLPAR is not selected, steal_time will always
be NUL, so accounting it is pointless

Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
 v5: moved the change to the original localtion
 v4: removed the check in vtime_account_system(), the compiler removes the code 
regardless.
 v3: new

 arch/powerpc/kernel/time.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 3b03731221c1..b0f5cc491f8b 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -412,8 +412,10 @@ 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));
+               acct->steal_time = 0;
+       }
 
        if (acct->idle_time)
                account_idle_time(cputime_to_nsecs(acct->idle_time));
@@ -433,7 +435,6 @@ void vtime_flush(struct task_struct *tsk)
 
        acct->utime = 0;
        acct->gtime = 0;
-       acct->steal_time = 0;
        acct->idle_time = 0;
        acct->stime = 0;
        acct->hardirq_time = 0;
-- 
2.13.3