From: Frederic Weisbecker <fweisbec@gmail.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Tony Luck <tony.luck@intel.com>,
Wanpeng Li <wanpeng.li@hotmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Thomas Gleixner <tglx@linutronix.de>,
Paul Mackerras <paulus@samba.org>,
Fenghua Yu <fenghua.yu@intel.com>, Rik van Riel <riel@redhat.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Stanislaw Gruszka <sgruszka@redhat.com>
Subject: [PATCH RESEND 15/36] tsacct: Convert obsolete cputime type to nsecs
Date: Tue, 31 Jan 2017 04:09:30 +0100 [thread overview]
Message-ID: <1485832191-26889-15-git-send-email-fweisbec@gmail.com> (raw)
In-Reply-To: <1485832191-26889-1-git-send-email-fweisbec@gmail.com>
In-Reply-To: <1485751603-15913-1-git-send-email-fweisbec@gmail.com>
Use the new nsec based cputime accessors as part of the whole cputime
conversion from cputime_t to nsecs.
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>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
include/linux/sched.h | 2 +-
kernel/tsacct.c | 27 ++++++++++++---------------
2 files changed, 13 insertions(+), 16 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 75fc773..dc44366 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1815,7 +1815,7 @@ struct task_struct {
#if defined(CONFIG_TASK_XACCT)
u64 acct_rss_mem1; /* accumulated rss usage */
u64 acct_vm_mem1; /* accumulated virtual memory usage */
- cputime_t acct_timexpd; /* stime + utime since last update */
+ u64 acct_timexpd; /* stime + utime since last update */
#endif
#ifdef CONFIG_CPUSETS
nodemask_t mems_allowed; /* Protected by alloc_lock */
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 040d0a6..5c21f05 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -31,7 +31,7 @@ void bacct_add_tsk(struct user_namespace *user_ns,
struct taskstats *stats, struct task_struct *tsk)
{
const struct cred *tcred;
- cputime_t utime, stime, utimescaled, stimescaled;
+ u64 utime, stime, utimescaled, stimescaled;
u64 delta;
BUILD_BUG_ON(TS_COMM_LEN < TASK_COMM_LEN);
@@ -66,13 +66,13 @@ void bacct_add_tsk(struct user_namespace *user_ns,
task_tgid_nr_ns(rcu_dereference(tsk->real_parent), pid_ns) : 0;
rcu_read_unlock();
- task_cputime_t(tsk, &utime, &stime);
- stats->ac_utime = cputime_to_usecs(utime);
- stats->ac_stime = cputime_to_usecs(stime);
+ task_cputime(tsk, &utime, &stime);
+ stats->ac_utime = div_u64(utime, NSEC_PER_USEC);
+ stats->ac_stime = div_u64(stime, NSEC_PER_USEC);
- task_cputime_t_scaled(tsk, &utimescaled, &stimescaled);
- stats->ac_utimescaled = cputime_to_usecs(utimescaled);
- stats->ac_stimescaled = cputime_to_usecs(stimescaled);
+ task_cputime_scaled(tsk, &utimescaled, &stimescaled);
+ stats->ac_utimescaled = div_u64(utimescaled, NSEC_PER_USEC);
+ stats->ac_stimescaled = div_u64(stimescaled, NSEC_PER_USEC);
stats->ac_minflt = tsk->min_flt;
stats->ac_majflt = tsk->maj_flt;
@@ -123,18 +123,15 @@ void xacct_add_tsk(struct taskstats *stats, struct task_struct *p)
#undef MB
static void __acct_update_integrals(struct task_struct *tsk,
- cputime_t utime, cputime_t stime)
+ u64 utime, u64 stime)
{
- cputime_t time, dtime;
- u64 delta;
+ u64 time, delta;
if (!likely(tsk->mm))
return;
time = stime + utime;
- dtime = time - tsk->acct_timexpd;
- /* Avoid division: cputime_t is often in nanoseconds already. */
- delta = cputime_to_nsecs(dtime);
+ delta = time - tsk->acct_timexpd;
if (delta < TICK_NSEC)
return;
@@ -155,11 +152,11 @@ static void __acct_update_integrals(struct task_struct *tsk,
*/
void acct_update_integrals(struct task_struct *tsk)
{
- cputime_t utime, stime;
+ u64 utime, stime;
unsigned long flags;
local_irq_save(flags);
- task_cputime_t(tsk, &utime, &stime);
+ task_cputime(tsk, &utime, &stime);
__acct_update_integrals(tsk, utime, stime);
local_irq_restore(flags);
}
--
2.7.4
next prev parent reply other threads:[~2017-01-31 3:18 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-30 4:46 [GIT PULL] cputime: Convert core use of cputime_t to nsecs Frederic Weisbecker
2017-01-30 14:32 ` Stanislaw Gruszka
2017-01-30 14:56 ` Frederic Weisbecker
2017-01-30 15:29 ` Stanislaw Gruszka
2017-01-31 3:09 ` [PATCH RESEND 01/36] jiffies: Reuse TICK_NSEC instead of NSEC_PER_JIFFY Frederic Weisbecker
2017-02-01 9:49 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 02/36] time: Introduce jiffies64_to_nsecs() Frederic Weisbecker
2017-02-01 9:50 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 03/36] sched: Remove unused INIT_CPUTIME macro Frederic Weisbecker
2017-02-01 9:50 ` [tip:sched/core] sched/cputime: Remove the " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 04/36] cputime: Convert kcpustat to nsecs Frederic Weisbecker
2017-02-01 9:51 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 05/36] macintosh/rack-meter: Remove cputime_t internal use Frederic Weisbecker
2017-02-01 9:51 ` [tip:sched/core] macintosh/rack-meter: Convert cputime64_t use to u64 tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 06/36] cputime: Convert guest time accounting to nsecs Frederic Weisbecker
2017-02-01 9:52 ` [tip:sched/core] sched/cputime: Convert guest time accounting to nsecs (u64) tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 07/36] cputime: Special API to return old-typed cputime Frederic Weisbecker
2017-02-01 9:52 ` [tip:sched/core] sched/cputime: Introduce special task_cputime_t() " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 08/36] cputime: Convert task/group cputime to nsecs Frederic Weisbecker
2017-02-01 9:53 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 09/36] alpha: Convert obsolete cputime_t " Frederic Weisbecker
2017-02-01 9:53 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 10/36] x86: Convert obsolete cputime type " Frederic Weisbecker
2017-02-01 9:54 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 11/36] isdn: " Frederic Weisbecker
2017-02-01 9:54 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 12/36] binfmt: " Frederic Weisbecker
2017-02-01 9:55 ` [tip:sched/core] fs/binfmt: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 13/36] acct: " Frederic Weisbecker
2017-02-01 9:55 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 14/36] delaycct: " Frederic Weisbecker
2017-02-01 9:56 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` Frederic Weisbecker [this message]
2017-02-01 9:56 ` [tip:sched/core] tsacct: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 16/36] signal: " Frederic Weisbecker
2017-02-01 9:57 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 17/36] cputime: Increment kcpustat directly on irqtime account Frederic Weisbecker
2017-02-01 9:58 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 18/36] posix-timers: Use TICK_NSEC instead of a dynamically ad-hoc calculated version Frederic Weisbecker
2017-02-01 9:58 ` [tip:sched/core] timers/posix-timers: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 19/36] posix-timers: Convert internals to use nsecs Frederic Weisbecker
2017-02-01 9:59 ` [tip:sched/core] timers/posix-timers: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 20/36] itimer: Convert internal cputime_t units to nsec Frederic Weisbecker
2017-02-01 9:59 ` [tip:sched/core] timers/itimer: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 21/36] sched: Remove temporary cputime_t accessors Frederic Weisbecker
2017-02-01 10:00 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 22/36] cputime: Push time to account_user_time() in nsecs Frederic Weisbecker
2017-02-01 10:00 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 23/36] cputime: Push time to account_steal_time() " Frederic Weisbecker
2017-02-01 10:01 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 24/36] cputime: Push time to account_idle_time() " Frederic Weisbecker
2017-02-01 10:01 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 25/36] cputime: Push time to account_system_time() " Frederic Weisbecker
2017-02-01 10:02 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 26/36] cputime: Complete nsec conversion of tick based accounting Frederic Weisbecker
2017-02-01 10:02 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 27/36] vtime: Return nsecs instead of cputime_t to account Frederic Weisbecker
2017-02-01 10:03 ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 28/36] cputime: Remove jiffies based cputime Frederic Weisbecker
2017-02-01 10:03 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 29/36] ia64: Move nsecs based cputime headers to the last arch using it Frederic Weisbecker
2017-02-01 10:04 ` [tip:sched/core] ia64, sched/cputime: Move the " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 30/36] ia64: Convert vtime to use nsec units directly Frederic Weisbecker
2017-02-01 10:04 ` [tip:sched/core] " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 31/36] ia64: Remove unused cputime definitions Frederic Weisbecker
2017-02-01 10:05 ` [tip:sched/core] ia64, sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 32/36] s390: Make arch_cpu_idle_time() to return nsecs Frederic Weisbecker
2017-02-01 10:05 ` [tip:sched/core] s390, sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 33/36] powerpc: Remove unused cputime definitions Frederic Weisbecker
2017-02-01 10:06 ` [tip:sched/core] powerpc, sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 34/36] s390: " Frederic Weisbecker
2017-02-01 10:06 ` [tip:sched/core] s390, sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 35/36] cputime: Remove unused nsec_to_cputime Frederic Weisbecker
2017-02-01 10:07 ` [tip:sched/core] sched/cputime: Remove unused nsec_to_cputime() tip-bot for Frederic Weisbecker
2017-01-31 3:09 ` [PATCH RESEND 36/36] cputime: Remove asm generic headers Frederic Weisbecker
2017-02-01 10:07 ` [tip:sched/core] sched/cputime: Remove generic asm headers tip-bot for Frederic Weisbecker
2017-02-06 13:49 ` [GIT PULL] cputime: Convert core use of cputime_t to nsecs Frederic Weisbecker
2017-02-07 8:08 ` Ingo Molnar
2017-02-07 14:06 ` Frederic Weisbecker
2017-02-07 18:41 ` Ingo Molnar
2017-02-21 5:08 ` hejianet
2017-02-22 14:30 ` Frederic Weisbecker
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