linux-kernel - [tip:sched/core] sched/cputime, powerpc: Migrate stolen

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Date:   Sat, 14 Jan 2017 02:03:06 -0800
From:   tip-bot for Frederic Weisbecker <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, fenghua.yu@...el.com,
        wanpeng.li@...mail.com, riel@...hat.com,
        torvalds@...ux-foundation.org, benh@...nel.crashing.org,
        peterz@...radead.org, sgruszka@...hat.com, tglx@...utronix.de,
        mingo@...nel.org, paulus@...ba.org, mpe@...erman.id.au,
        borntraeger@...ibm.com, tony.luck@...el.com,
        heiko.carstens@...ibm.com, hpa@...or.com, schwidefsky@...ibm.com,
        fweisbec@...il.com
Subject: [tip:sched/core] sched/cputime, powerpc: Migrate stolen_time field
 to the accounting structure

Commit-ID:  f828c3d0aebab130a19d36336b50afa3414fa0bc
Gitweb:     http://git.kernel.org/tip/f828c3d0aebab130a19d36336b50afa3414fa0bc
Author:     Frederic Weisbecker <fweisbec@...il.com>
AuthorDate: Thu, 5 Jan 2017 18:11:46 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Sat, 14 Jan 2017 09:54:12 +0100

sched/cputime, powerpc: Migrate stolen_time field to the accounting structure

That in order to gather all cputime accumulation to the same place.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Acked-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Christian Borntraeger <borntraeger@...ibm.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Rik van Riel <riel@...hat.com>
Cc: Stanislaw Gruszka <sgruszka@...hat.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Wanpeng Li <wanpeng.li@...mail.com>
Link: http://lkml.kernel.org/r/1483636310-6557-7-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/powerpc/include/asm/paca.h | 1 -
 arch/powerpc/kernel/time.c      | 6 +++---
 arch/powerpc/xmon/xmon.c        | 2 +-
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 6a6792b..708c3e5 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -187,7 +187,6 @@ struct paca_struct {
 
 	/* Stuff for accurate time accounting */
 	struct cpu_accounting_data accounting;
-	u64 stolen_time;		/* TB ticks taken by hypervisor */
 	u64 dtl_ridx;			/* read index in dispatch log */
 	struct dtl_entry *dtl_curr;	/* pointer corresponding to dtl_ridx */
 
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 17a2cd1..714313e 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -273,7 +273,7 @@ void accumulate_stolen_time(void)
 	ust = scan_dispatch_log(acct->starttime);
 	acct->stime -= sst;
 	acct->utime -= ust;
-	local_paca->stolen_time += ust + sst;
+	acct->steal_time += ust + sst;
 
 	local_paca->soft_enabled = save_soft_enabled;
 }
@@ -288,8 +288,8 @@ static inline u64 calculate_stolen_time(u64 stop_tb)
 		acct->stime -= stolen;
 	}
 
-	stolen += get_paca()->stolen_time;
-	get_paca()->stolen_time = 0;
+	stolen += acct->steal_time;
+	acct->steal_time = 0;
 	return stolen;
 }
 
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 9f3b170..3f864c3 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2294,7 +2294,7 @@ static void dump_one_paca(int cpu)
 	DUMP(p, accounting.starttime_user, "llx");
 	DUMP(p, accounting.startspurr, "llx");
 	DUMP(p, accounting.utime_sspurr, "llx");
-	DUMP(p, stolen_time, "llx");
+	DUMP(p, accounting.steal_time, "llx");
 #undef DUMP
 
 	catch_memory_errors = 0;