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From: Frederic Weisbecker <fweisbec@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Rik van Riel <riel@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@kernel.org>,
	Stanislaw Gruszka <sgruszka@redhat.com>,
	Wanpeng Li <wanpeng.li@hotmail.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>
Subject: [PATCH 06/10] powerpc: Migrate stolen_time field to accounting structure
Date: Thu,  5 Jan 2017 18:11:46 +0100	[thread overview]
Message-ID: <1483636310-6557-7-git-send-email-fweisbec@gmail.com> (raw)
In-Reply-To: <1483636310-6557-1-git-send-email-fweisbec@gmail.com>

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

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
 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;
-- 
2.7.4

  parent reply	other threads:[~2017-01-05 17:12 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-05 17:11 [PATCH 00/10] vtime: Delay cputime accounting to tick / context switch Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 01/10] powerpc32: Fix stale scaled stime on " Frederic Weisbecker
2017-01-14 10:00   ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 02/10] ia64: Fix wrong start cputime assignment on task switch Frederic Weisbecker
2017-01-14 10:00   ` [tip:sched/core] sched/cputime, ia64: Fix incorrect " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 03/10] cputime: Allow accounting system time using cpustat index Frederic Weisbecker
2017-01-14 10:01   ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 04/10] cputime: Export account_guest_time Frederic Weisbecker
2017-01-14 10:01   ` [tip:sched/core] sched/cputime: Export account_guest_time() tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 05/10] powerpc: Prepare accounting structure for cputime flush on tick Frederic Weisbecker
2017-01-14 10:02   ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` Frederic Weisbecker [this message]
2017-01-14 10:03   ` [tip:sched/core] sched/cputime, powerpc: Migrate stolen_time field to the accounting structure tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 07/10] powerpc/vtime: Accumulate cputime and account only on tick/task switch Frederic Weisbecker
2017-01-14 10:03   ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 08/10] ia64: " Frederic Weisbecker
2017-01-14 10:04   ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 09/10] s390/cputime: delayed accounting of system time Frederic Weisbecker
2017-01-14 10:04   ` [tip:sched/core] sched/cputime, s390: Implement " tip-bot for Martin Schwidefsky
2017-01-05 17:11 ` [PATCH 10/10] vtime: Rename vtime_account_user() to vtime_flush() Frederic Weisbecker
2017-01-14 10:05   ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-09  8:13 ` [PATCH 00/10] vtime: Delay cputime accounting to tick / context switch Martin Schwidefsky
2017-01-10 11:45 ` Thomas Gleixner
2017-01-10 15:21   ` Frederic Weisbecker
  -- strict thread matches above, loose matches on Subject: below --
2016-12-06  2:32 [PATCH 00/10] vtime: Delay cputime accounting to tick Frederic Weisbecker
2016-12-06  2:32 ` [PATCH 06/10] powerpc: Migrate stolen_time field to accounting structure Frederic Weisbecker

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