From: Chris Metcalf <cmetcalf@tilera.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Mike Frysinger <vapier@gentoo.org>,
Mikael Starvik <starvik@axis.com>,
Jesper Nilsson <jesper.nilsson@axis.com>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Hirokazu Takata <takata@linux-m32r.org>,
Ralf Baechle <ralf@linux-mips.org>,
David Howells <dhowells@redhat.com>,
Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
"James E.J. Bottomley" <jejb@parisc-linux.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>, <linux390@de.ibm.com>,
Paul Mundt <lethal@linux-sh.org>,
"David S. Miller" <davem@davemloft.net>,
Jeff Dike <jdike@addtoit.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
<x86@kernel.org>,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
<linux-alpha@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<uclinux-dist-devel@blackfin.uclinux.org>,
<linux-cris-kernel@axis.com>, <linux-ia64@vger.kernel.org>,
<linux-mips@linux-mips.org>, <linux-parisc@vger.kernel.org>,
<linuxppc-dev@lists.ozlabs.org>, <linux-s390@vger.kernel.org>,
<linux-sh@vger.kernel.org>, <sparclinux@vger.kernel.org>,
<user-mode-linux-devel@lists.sourceforge.net>,
<user-mode-linux-user@lists.sourceforge.net>,
<xen-devel@lists.xensource.com>, <virtualization@lists.osdl.org>,
Linux-Arch <linux-arch@vger.kernel.org>
Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to smp_send_reschedule()
Date: Mon, 17 Jan 2011 08:52:21 -0500 [thread overview]
Message-ID: <4D344995.80701@tilera.com> (raw)
In-Reply-To: <1295264509.30950.59.camel@laptop>
On 1/17/2011 6:41 AM, Peter Zijlstra wrote:
> Index: linux-2.6/arch/tile/kernel/smp.c
> ===================================================================
> --- linux-2.6.orig/arch/tile/kernel/smp.c
> +++ linux-2.6/arch/tile/kernel/smp.c
> @@ -184,12 +184,8 @@ void flush_icache_range(unsigned long st
> /* Called when smp_send_reschedule() triggers IRQ_RESCHEDULE. */
> static irqreturn_t handle_reschedule_ipi(int irq, void *token)
> {
> - /*
> - * Nothing to do here; when we return from interrupt, the
> - * rescheduling will occur there. But do bump the interrupt
> - * profiler count in the meantime.
> - */
> __get_cpu_var(irq_stat).irq_resched_count++;
> + scheduler_ipi();
>
> return IRQ_HANDLED;
> }
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
--
Chris Metcalf, Tilera Corp.
http://www.tilera.com
WARNING: multiple messages have this Message-ID (diff)
From: Chris Metcalf <cmetcalf@tilera.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Mike Frysinger <vapier@gentoo.org>,
Mikael Starvik <starvik@axis.com>,
Jesper Nilsson <jesper.nilsson@axis.com>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Hirokazu Takata <takata@linux-m32r.org>,
Ralf Baechle <ralf@linux-mips.org>,
David Howells <dhowells@redhat.com>,
Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
"James E.J. Bottomley" <jejb@parisc-linux.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>,
linux390@de.ibm.com, Paul Mundt <lethal@linux-sh.org>,
"David S. Miller" <davem@davemloft.net>,
Jeff Dike <jdike@addtoit.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
uclinux-dist-devel@blackfin.uclinux.org,
linux-cris-kernel@axis.com, linux-ia64@vger.kernel.org,
linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
user-mode-linux-devel@lists.sourceforge.net,
user-mode-linux-user@lists.sourceforge.net,
xen-devel@lists.xensource.com, virtualization@lists.osdl.org,
Linux-Arch <linux-arch@vger.kernel.org>
Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to smp_send_reschedule()
Date: Mon, 17 Jan 2011 08:52:21 -0500 [thread overview]
Message-ID: <4D344995.80701@tilera.com> (raw)
Message-ID: <20110117135221.ZjMEgTwRDuIB8iSRLc3UfoYxaPL9sbDMz9sXvc_LvlA@z> (raw)
In-Reply-To: <1295264509.30950.59.camel@laptop>
On 1/17/2011 6:41 AM, Peter Zijlstra wrote:
> Index: linux-2.6/arch/tile/kernel/smp.c
> ===================================================================
> --- linux-2.6.orig/arch/tile/kernel/smp.c
> +++ linux-2.6/arch/tile/kernel/smp.c
> @@ -184,12 +184,8 @@ void flush_icache_range(unsigned long st
> /* Called when smp_send_reschedule() triggers IRQ_RESCHEDULE. */
> static irqreturn_t handle_reschedule_ipi(int irq, void *token)
> {
> - /*
> - * Nothing to do here; when we return from interrupt, the
> - * rescheduling will occur there. But do bump the interrupt
> - * profiler count in the meantime.
> - */
> __get_cpu_var(irq_stat).irq_resched_count++;
> + scheduler_ipi();
>
> return IRQ_HANDLED;
> }
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
--
Chris Metcalf, Tilera Corp.
http://www.tilera.com
next prev parent reply other threads:[~2011-01-17 13:52 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-17 11:07 [PATCH] sched: provide scheduler_ipi() callback in response to smp_send_reschedule() Peter Zijlstra
2011-01-17 11:26 ` Russell King - ARM Linux
2011-01-17 11:31 ` Peter Zijlstra
2011-01-17 11:41 ` Peter Zijlstra
2011-01-17 11:57 ` Russell King - ARM Linux
2011-01-17 13:52 ` Chris Metcalf [this message]
2011-01-17 13:52 ` Chris Metcalf
2011-01-17 13:58 ` Jesper Nilsson
2011-01-17 13:58 ` Jesper Nilsson
2011-01-24 23:03 ` Ralf Baechle
2011-01-17 12:18 ` Martin Schwidefsky
2011-01-17 19:18 ` David Daney
2011-01-17 19:49 ` [uclinux-dist-devel] " Mike Frysinger
2011-01-17 20:16 ` Peter Zijlstra
2011-01-17 20:31 ` Benjamin Herrenschmidt
2011-01-17 20:43 ` Peter Zijlstra
2011-02-06 23:26 ` Benjamin Herrenschmidt
2011-02-07 13:54 ` Peter Zijlstra
2011-02-09 6:14 ` Benjamin Herrenschmidt
2011-02-09 9:37 ` Peter Zijlstra
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