From: Suresh Siddha <suresh.b.siddha@intel.com>
To: Venkatesh Pallipadi <venki@google.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Aaron Durbin <adurbin@google.com>, Paul Turner <pjt@google.com>,
Yong Zhang <yong.zhang0@gmail.com>,
linux-kernel@vger.kernel.org, Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Ralf Baechle <ralf@linux-mips.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: Re: fork_idle from wq cleanup
Date: Tue, 06 Mar 2012 22:06:21 -0800 [thread overview]
Message-ID: <1331100381.2259.2.camel@sbsiddha-mobl2> (raw)
In-Reply-To: <1331070074-31717-1-git-send-email-venki@google.com>
On Tue, 2012-03-06 at 13:41 -0800, Venkatesh Pallipadi wrote:
> I looked at avoiding the wq stuff. But, there is no easy/clean way to do
> if as we have number of routines within copy_process assume current
> being the parent.
>
> But, we can move most of the complication out of arch code into generic code
> and share it across multiple archs. Here is the patch for that.
>
> We can easily add x86 percpu idle task on top of this cleanup (except for
> mini-circus to switch idle_task of CPU 0).
>
> Sorry. The patches for ia64, mips, powerpc and s390 are untested and are in
> "should work" category.
>
> Overall diffstat looks like
> ---
> arch/ia64/kernel/smpboot.c | 49 ++---------------------------
> arch/mips/kernel/smp.c | 47 +---------------------------
> arch/powerpc/kernel/smp.c | 63 ++++----------------------------------
> arch/s390/kernel/smp.c | 38 +++--------------------
> arch/x86/kernel/smpboot.c | 74 ++++++---------------------------------------
> include/linux/sched.h | 1
> kernel/fork.c | 48 +++++++++++++++++++++++++++++
> 7 files changed, 79 insertions(+), 241 deletions(-)
>
Looks good to me.
Reviewed-by: Suresh Siddha <suresh.b.siddha@intel.com>
next prev parent reply other threads:[~2012-03-07 6:06 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-23 0:36 [PATCH] Extend mwait idle to optimize away CAL and RES interrupts to an idle CPU -v1 Venkatesh Pallipadi
2012-02-23 7:50 ` Ingo Molnar
2012-02-23 9:08 ` Peter Zijlstra
2012-02-23 20:04 ` Venki Pallipadi
2012-02-23 20:03 ` Venki Pallipadi
2012-03-02 0:33 ` Venki Pallipadi
2012-03-02 1:28 ` Suresh Siddha
2012-03-02 1:35 ` Venki Pallipadi
2012-03-02 1:37 ` Suresh Siddha
2012-03-02 2:00 ` Venki Pallipadi
2012-03-02 7:21 ` Ingo Molnar
2012-03-02 17:41 ` Suresh Siddha
2012-03-06 21:41 ` fork_idle from wq cleanup Venkatesh Pallipadi
2012-03-06 21:41 ` [PATCH 1/5] x86: Move fork_idle from wq and idle caching to common code Venkatesh Pallipadi
2012-03-06 21:41 ` [PATCH 2/5] ia64: Use common fork_idle_from_wq in smpboot Venkatesh Pallipadi
2012-03-06 21:41 ` [PATCH 3/5] mips: " Venkatesh Pallipadi
2012-03-06 22:51 ` Ralf Baechle
2012-03-06 21:41 ` [PATCH 4/5] powerpc: " Venkatesh Pallipadi
2012-03-06 21:41 ` [PATCH 5/5] s390: " Venkatesh Pallipadi
2012-03-07 7:00 ` Heiko Carstens
2012-03-07 6:06 ` Suresh Siddha [this message]
2012-02-23 9:30 ` [PATCH] Extend mwait idle to optimize away CAL and RES interrupts to an idle CPU -v1 Peter Zijlstra
2012-02-23 19:34 ` Venki Pallipadi
2012-02-24 5:41 ` Yong Zhang
2012-02-24 6:13 ` Yong Zhang
2012-02-27 8:38 ` Peter Zijlstra
2012-02-27 9:08 ` Yong Zhang
2012-02-27 9:30 ` Peter Zijlstra
2012-02-27 9:51 ` Yong Zhang
2012-02-26 1:32 ` Paul E. McKenney
2012-02-27 9:06 ` Yong Zhang
2012-02-27 17:05 ` Paul E. McKenney
2012-02-28 7:12 ` Yong Zhang
2012-02-28 13:05 ` Paul E. McKenney
2012-02-29 6:36 ` Yong Zhang
2012-02-27 8:45 ` Peter Zijlstra
2012-02-27 18:17 ` Venki Pallipadi
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