-by: Siegfried Wulsch siegfried.wul...@rovema.de
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: sta...@vger.kernel.org
---
Index: linux-stable/kernel/sched/clock.c
===
--- linux.orig/kernel/sched/clock.c
+++ linux/kernel/sched/clock.c
On Sat, 6 Apr 2013, Srivatsa S. Bhat wrote:
Hi Dave,
On 04/06/2013 03:13 AM, Dave Hansen wrote:
Hey Thomas,
I seem to be running in to smpboot_thread_fn()'s
BUG_ON(td-cpu != smp_processor_id());
That should be WARN_ON of course. Stupid me.
pretty regularly, both at boot
On Sat, 6 Apr 2013, Thomas Gleixner wrote:
This is Hillfs proposed patch:
--- a/kernel/kthread.c Sat Jan 19 13:03:52 2013
+++ b/kernel/kthread.c Sat Jan 19 13:17:54 2013
@@ -306,6 +306,7 @@ struct task_struct *kthread_create_on_cp
return p;
set_bit
On Sun, 7 Apr 2013, Borislav Petkov wrote:
On Sun, Apr 07, 2013 at 11:20:10AM +0200, Thomas Gleixner wrote:
And it's even more bogus because the cpu to which we would bind in
kthread_create_on_cpu() is not yet online.
In case you guys are wondering about reproducibility, I saw the same
On Mon, 8 Apr 2013, Borislav Petkov wrote:
On Mon, Apr 08, 2013 at 11:24:14AM +0200, Thomas Gleixner wrote:
+ /* Rebind ourself to the target cpu */
+ if (test_bit(KTHREAD_IS_PER_CPU, self-flags)) {
+ set_cpus_allowed_ptr(currrent, cpumask_of(self-cpu));
currrent is a typo
wrote this thing?
Hehe :)
Move some non timer related syscalls to kernel/sys.c
Signed-off-by: Stephen Rothwell s...@canb.auug.org.au
Acked-by: Thomas Gleixner t...@linutronix.de
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Russell,
On Mon, 8 Apr 2013, Russell King - ARM Linux wrote:
On Mon, Mar 25, 2013 at 03:02:39PM +0100, Thomas Gleixner wrote:
So, how can I review these changes when all there is is a git URL, and
I *do* not want to pull them into my tree without first looking at the
patches, possibly
On Mon, 8 Apr 2013, H. Peter Anvin wrote:
On 04/08/2013 03:43 PM, Kees Cook wrote:
This makes the IDT unconditionally read-only. This primarily removes
the IDT from being a target for arbitrary memory write attacks. It has
an added benefit of also not leaking (via the sidt instruction) the
wakeups and
use this state explicitely for the unpark wakeup.
Reported-by: Dave Jones da...@redhat.com
Reported-by: Dave Hansen d...@sr71.net
Reported-by: Borislav Petkov b...@alien8.de
Cc: sta...@vger.kernel.org
Signed-off-by: Thomas Gleixner t...@linutronix.de
---
fs/proc/array.c |1
Dave,
On Tue, 9 Apr 2013, Dave Hansen wrote:
Hey Thomas,
I don't think the patch helped my case. Looks like the same BUG_ON().
I accidentally booted with possible_cpus=10 instead of 160. I wasn't
able to trigger this in that case, even repeatedly on/offlining them.
But, once I booted
On Tue, 9 Apr 2013, Thomas Gleixner wrote:
Dave,
On Tue, 9 Apr 2013, Dave Hansen wrote:
Hey Thomas,
I don't think the patch helped my case. Looks like the same BUG_ON().
I accidentally booted with possible_cpus=10 instead of 160. I wasn't
able to trigger this in that case
On Tue, 9 Apr 2013, Dave Hansen wrote:
On 04/09/2013 12:30 PM, Thomas Gleixner wrote:
On Tue, 9 Apr 2013, Thomas Gleixner wrote:
Thought more about it and found, that the stupid binding only works
when the task is really descheduled. So there is a small window left,
which could lead
On Wed, 10 Apr 2013, Thomas Gleixner wrote:
On Tue, 9 Apr 2013, Dave Hansen wrote:
On 04/09/2013 12:30 PM, Thomas Gleixner wrote:
On Tue, 9 Apr 2013, Thomas Gleixner wrote:
Thought more about it and found, that the stupid binding only works
when the task is really descheduled. So
On Wed, 10 Apr 2013, Srivatsa S. Bhat wrote:
Interestingly, in every single stack trace, the crashing task is the migration
thread. Now, migration thread belongs to the highest priority stop_task sched
class, and this particular sched class is very unique in the way it implements
its internal
Dave,
On Wed, 10 Apr 2013, Dave Hansen wrote:
I think I got a full trace this time:
http://sr71.net/~dave/linux/bigbox-trace.1365621899.txt.gz
The last timestamp is pretty close to the timestamp on the console:
[ 2071.033434] smpboot_thread_fn():
[ 2071.033455]
On Thu, 11 Apr 2013, Srivatsa S. Bhat wrote:
On 04/11/2013 04:18 PM, Srivatsa S. Bhat wrote:
On 04/11/2013 03:49 PM, Thomas Gleixner wrote:
Dave,
On Wed, 10 Apr 2013, Dave Hansen wrote:
I think I got a full trace this time:
http://sr71.net/~dave/linux/bigbox-trace.1365621899
On Thu, 11 Apr 2013, Srivatsa S. Bhat wrote:
On 04/11/2013 04:18 PM, Srivatsa S. Bhat wrote:
On 04/11/2013 03:49 PM, Thomas Gleixner wrote:
Dave,
On Wed, 10 Apr 2013, Dave Hansen wrote:
I think I got a full trace this time:
http://sr71.net/~dave/linux/bigbox-trace.1365621899
On Thu, 11 Apr 2013, Srivatsa S. Bhat wrote:
The reason why we can't get rid of the bind in the unpark code is because,
the threads are parked during CPU offline *after* calling CPU_DOWN_PREPARE.
And during CPU_DOWN_PREPARE, the scheduler removes the CPU from the
cpu_active_mask.
So on any
On Thu, 11 Apr 2013, Dave Hansen wrote:
On 04/11/2013 03:19 AM, Thomas Gleixner wrote:
--- linux-2.6.orig/kernel/smpboot.c
+++ linux-2.6/kernel/smpboot.c
@@ -185,8 +185,18 @@ __smpboot_create_thread(struct smp_hotpl
}
get_task_struct(tsk);
*per_cpu_ptr(ht-store, cpu) = tsk
Srivatsa,
On Fri, 12 Apr 2013, Srivatsa S. Bhat wrote:
On 04/09/2013 08:08 PM, Thomas Gleixner wrote:
Add a new task state (TASK_PARKED) which prevents other wakeups and
use this state explicitely for the unpark wakeup.
Again, I think this is unnecessary. We are good as long as no one
Srivatsa,
On Fri, 12 Apr 2013, Srivatsa S. Bhat wrote:
On 04/12/2013 02:17 AM, Thomas Gleixner wrote:
+
+ /*
+ * Wait for p-on_rq to be reset to 0, to ensure that the per-cpu
+ * migration thread (which belongs to the stop_task sched class)
+ * doesn't run until the cpu
On Thu, 11 Apr 2013, Sam Ravnborg wrote:
Add generic cpu_idle support
sparc32:
- replace call to cpu_idle() with cpu_startup_entry()
- add arch_cpu_idle()
sparc64:
- smp_callin() now include cpu_startup_entry() call so we can
skip calling cpu_idle from assembler
- add
On Mon, 8 Apr 2013, Kevin Strasser wrote:
--- /dev/null
+++ b/drivers/mfd/kempld-core.c
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/list.h
+#include linux/device.h
+#include linux/platform_device.h
+#include linux/dmi.h
+#include linux/slab.h
On Thu, 28 Mar 2013, Srivatsa S. Bhat wrote:
(In all my replies, I'm referring to the code in your v2 on your git
tree, but replying to the corresponding patches in your v1).
So, in alpha, we poll in cpu idle. In the generic implementation in
kernel/cpu/idle.c, arch_cpu_idle() is defined as:
On Thu, 28 Mar 2013, Srivatsa S. Bhat wrote:
That doesn't look quite right, since it returns -1 (instead of 0) when
str == poll.
Stupid me.
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-by: Christian Ruppert christian.rupp...@abilis.com
Cc: Thomas Gleixner t...@linutronix.de
Cc: Christian Ruppert christian.rupp...@abilis.com
Cc: Pierrick Hascoet pierrick.hasc...@abilis.com
Cc: linux-kernel@vger.kernel.org
---
include/linux/timer.h | 11 ++-
1 file changed, 10
On Wed, 13 Mar 2013, Lorenzo Pieralisi wrote:
+ /* Take care of enforced broadcast requests */
+ cpumask_or(tmpmask, tmpmask, tick_broadcast_force_mask);
+ cpumask_clear(tick_broadcast_force_mask);
I tested the set and it works fine on a dual cluster big.LITTLE testchip
using
-by: Thomas Gleixner t...@linutronix.de
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Please read the FAQ at http://www.tux.org/lkml/
On Fri, 15 Mar 2013, Linus Torvalds wrote:
On Fri, Mar 15, 2013 at 6:26 AM, Stephane Eranian eran...@google.com wrote:
This patch fixes a kernel crash when using precise sampling (PEBS)
after a suspend/resume.
Yup, works. Applied.
Can we please get rid of the crazy CPU notifier crap
The microblaze idle loop provides a polling and a non polling version,
which are suprisingly both polling, just with slightly different
instrumentation. Remove them and use the generic poller.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Michal Simek mon...@monstr.eu
---
arch/microblaze
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Ralf Baechle r...@linux-mips.org
---
arch/mips/Kconfig |1
arch/mips/kernel/process.c | 46 -
arch/mips/kernel/smp.c |2 -
3 files changed, 15 insertions(+), 34 deletions
Unfortunately this arch does not compile at all :(
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Chris Zankel ch...@zankel.net
---
arch/xtensa/Kconfig |1 +
arch/xtensa/kernel/process.c | 14 ++
2 files changed, 3 insertions(+), 12 deletions(-)
Index: linux
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Guan Xuetao g...@mprc.pku.edu.cn
---
arch/unicore32/Kconfig |1 +
arch/unicore32/kernel/process.c | 21 +++--
2 files changed, 4 insertions(+), 18 deletions(-)
Index: linux-2.6/arch/unicore32/Kconfig
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: x...@kernel.org
---
arch/x86/Kconfig |1
arch/x86/kernel/process.c | 106 --
arch/x86/kernel/smpboot.c |2
arch/x86/xen/smp.c|2
4 files changed, 32 insertions(+), 79
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Chris Metcalf cmetc...@tilera.com
---
arch/tile/kernel/process.c | 61 -
arch/tile/kernel/smpboot.c |2 -
2 files changed, 7 insertions(+), 56 deletions(-)
Index: linux-2.6/arch/tile/kernel
cpu_idle() needs to be called with preemption disabled.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Chris Metcalf cmetc...@tilera.com
---
arch/tile/kernel/smpboot.c |2 --
1 file changed, 2 deletions(-)
Index: linux-2.6/arch/tile/kernel/smpboot.c
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Paul Mundt let...@linux-sh.org
---
arch/sh/Kconfig |2
arch/sh/kernel/idle.c | 102 --
arch/sh/kernel/smp.c |2
3 files changed, 12 insertions(+), 94 deletions(-)
Index: linux
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: James Hogan james.ho...@imgtec.com
---
arch/metag/Kconfig |1 +
arch/metag/kernel/process.c | 32 +++-
arch/metag/kernel/smp.c |2 +-
3 files changed, 5 insertions(+), 30 deletions(-)
Index
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
---
arch/powerpc/Kconfig |1
arch/powerpc/kernel/idle.c | 78 -
arch/powerpc/kernel/smp.c |2 -
3 files changed, 24 insertions(+), 57
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Heiko Carstens heiko.carst...@de.ibm.com
---
arch/s390/kernel/process.c | 25 +++--
arch/s390/kernel/smp.c |3 +--
2 files changed, 8 insertions(+), 20 deletions(-)
Index: linux-2.6/arch/s390/kernel/process.c
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Lennox Wu lennox...@gmail.com
---
arch/score/Kconfig |1 +
arch/score/kernel/process.c | 18 --
2 files changed, 1 insertion(+), 18 deletions(-)
Index: linux-2.6/arch/score/Kconfig
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: James E.J. Bottomley j...@parisc-linux.org
Cc: Helge Deller del...@gmx.de
---
arch/parisc/Kconfig |1 +
arch/parisc/kernel/process.c | 22 --
arch/parisc/kernel/smp.c |2 +-
3 files changed, 2
Idle poller with an extra check_pgt_cache() invocation. Use the core
code.
Signed-off-by: Thomas Gleixner t...@linutronix.de
---
arch/openrisc/Kconfig |1
arch/openrisc/kernel/idle.c | 73
2 files changed, 1 insertion(+), 73 deletions
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: David Howells dhowe...@redhat.com
---
arch/frv/Kconfig |1 +
arch/frv/kernel/process.c | 27 +--
2 files changed, 6 insertions(+), 22 deletions(-)
Index: linux-2.6/arch/frv/Kconfig
default_idle() boils down to safe_halt() and the other option is idle
polling. Use the core functionality.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: David Howells dhowe...@redhat.com
---
arch/mn10300/Kconfig |1
arch/mn10300/kernel/process.c | 70
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Geert Uytterhoeven ge...@linux-m68k.org
---
arch/m68k/Kconfig |1 +
arch/m68k/kernel/process.c | 32
2 files changed, 5 insertions(+), 28 deletions(-)
Index: linux-2.6/arch/m68k/Kconfig
Replace the private poller.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Hirokazu Takata tak...@linux-m32r.org
---
arch/m32r/Kconfig |1 +
arch/m32r/kernel/process.c | 18 --
arch/m32r/kernel/smpboot.c |2 +-
3 files changed, 2 insertions(+), 19
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Tony Luck tony.l...@intel.com
---
arch/ia64/Kconfig |1
arch/ia64/kernel/perfmon.c | 13 ++-
arch/ia64/kernel/process.c | 83 +
arch/ia64/kernel/smpboot.c |2 -
4 files
enable/disable_hlt() does not need to be exported and can be killed on
architectures which do not use it at all.
Signed-off-by: Thomas Gleixner t...@linutronix.de
---
arch/arm/kernel/process.c |4
arch/cris/arch-v32/kernel/process.c |8 +++-
arch/cris/include
Implement set/clear functions for the idle need_resched poll
implementation.
Signed-off-by: Thomas Gleixner t...@linutronix.de
---
include/linux/sched.h | 23 ++-
1 file changed, 22 insertions(+), 1 deletion(-)
Index: linux-2.6/include/linux/sched.h
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Richard Kuo r...@codeaurora.org
---
arch/hexagon/Kconfig |1 +
arch/hexagon/kernel/process.c | 23 +++
arch/hexagon/kernel/smp.c |2 +-
3 files changed, 5 insertions(+), 21 deletions(-)
Index: linux
Use the core idle poll function instead of the private one
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Yoshinori Sato ys...@users.sourceforge.jp
---
arch/h8300/Kconfig |1 +
arch/h8300/kernel/process.c | 35 ---
2 files changed, 5
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Jesper Nilsson jesper.nils...@axis.com
---
arch/cris/Kconfig |1 +
arch/cris/arch-v10/kernel/process.c |3 ++-
arch/cris/arch-v32/kernel/process.c | 10 --
arch/cris/arch-v32/kernel/smp.c |4
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Mark Salter msal...@redhat.com
---
arch/c6x/Kconfig |1 +
arch/c6x/kernel/process.c | 28 +---
2 files changed, 2 insertions(+), 27 deletions(-)
Index: linux-2.6/arch/c6x/Kconfig
Also replace the idle poll enforcement by the generic functionality.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Hans-Christian Egtvedt egtv...@samfundet.no
---
arch/avr32/Kconfig |1 +
arch/avr32/kernel/process.c | 13 ++---
arch/avr32
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Mike Frysinger vap...@gentoo.org
---
arch/blackfin/Kconfig |1 +
arch/blackfin/kernel/process.c | 30 ++
arch/blackfin/mach-common/smp.c |2 +-
3 files changed, 4 insertions(+), 29 deletions
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Catalin Marinas catalin.mari...@arm.com
---
arch/arm64/Kconfig |1 +
arch/arm64/kernel/process.c | 43 +--
arch/arm64/kernel/smp.c |2 +-
3 files changed, 7 insertions(+), 39
Move it to a common place. Preparatory patch for implementing
set/clear for the idle need_resched poll implementation.
Signed-off-by: Thomas Gleixner t...@linutronix.de
---
arch/alpha/include/asm/thread_info.h |2 --
arch/ia64/include/asm/thread_info.h |2 --
arch/metag
Use the generic idle loop and replace enable/disable_hlt with the
respective core functions.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Russell King li...@arm.linux.org.uk
---
arch/arm/Kconfig |2
arch/arm/include/asm/system_misc.h |3 -
arch/arm/kernel
The core provides a generic idle poll loop.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Richard Henderson r...@twiddle.net
Cc: Ivan Kokshaysky i...@jurassic.park.msu.ru
Cc: Matt Turner matts...@gmail.com
---
arch/alpha/Kconfig |1 +
arch/alpha/kernel/process.c | 19
/cpu/idle.c
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Vineet Gupta vgu...@synopsys.com
---
arch/arc/Kconfig |1 +
arch/arc/kernel/process.c | 27 +--
arch/arc/kernel/smp.c |2 +-
3 files changed, 3 insertions(+), 27 deletions(-)
Index
by the architecture code if needed.
Signed-off-by: Thomas Gleixner t...@linutronix.de
---
arch/Kconfig|3 +
include/linux/cpu.h |8 +++
kernel/cpu/idle.c | 105
3 files changed, 116 insertions(+)
Index: linux-2.6/arch/Kconfig
For now this calls cpu_idle(), but in the long run we want to move the
cpu bringup code to the core and therefor we add a state argument.
Signed-off-by: Thomas Gleixner t...@linutronix.de
---
include/linux/cpu.h |8
init/main.c |2 +-
kernel/Makefile |1 +
kernel
Each architecture implements its own cpu_idle() code, which is more or
less the same on all architectures (plus/minus a few bugs and a few
missing extra functionalities, instrumentation ...). That also forces
everyone who is interested in idle related features to add new
functionality to every
On Fri, 22 Mar 2013, Tony Breeds wrote:
On Thu, Mar 21, 2013 at 09:52:57PM -, Thomas Gleixner wrote:
+/*
+ * Idle thread specific functions to determine the need_resched
+ * polling state. We have two versions, one based on TS_POLLING in
+ * thread_info.status and one based
On Thu, 21 Mar 2013, Steven Rostedt wrote:
On Fri, 2013-03-22 at 03:24 +, Ben Hutchings wrote:
Note, I posted a fix on Tuesday:
https://lkml.org/lkml/2013/3/19/369
Thanks. I did search GMANE with some obvious terms but I think its
index is lagging.
It didn't help that
Dear RT Folks,
I'm pleased to announce the 3.6.11-rt31 release.
Changes since 3.6.11-rt31:
1) Highmem fixes (Sebastian Siewior)
2) Futex locking fix
3) Add a missing timer check (Zhao Hongjiang)
4) Make simple wait exports EXPORT_SYMBOL. As much as I hate it,
but we have
Dear RT Folks,
I'm pleased to announce the 3.8.4-rt1 release.
Again the credit for the heavy lifting goes to Sebastian Siewior, AKA
bigeasy, who took up most of the work to get this out. He's on my
companies engineering team and I hope you trust him as much as I do.
Known issues:
- SLUB
On Sat, 23 Mar 2013, Heiko Carstens wrote:
On Thu, Mar 21, 2013 at 09:53:00PM -, Thomas Gleixner wrote:
All idle functions in arch/* are more or less the same, plus minus a
few bugs and extra instrumentation, tickless support and other
optional items.
Implement a generic idle
On Fri, 22 Mar 2013, James Hogan wrote:
On 21/03/13 21:53, Thomas Gleixner wrote:
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: James Hogan james.ho...@imgtec.com
---
arch/metag/Kconfig |1 +
arch/metag/kernel/process.c | 32
On Fri, 22 Mar 2013, Kevin Hilman wrote:
Hi Thomas,
Thomas Gleixner t...@linutronix.de writes:
Use the generic idle loop and replace enable/disable_hlt with the
respective core functions.
Signed-off-by: Thomas Gleixner t...@linutronix.de
Cc: Russell King li...@arm.linux.org.uk
On Mon, 25 Mar 2013, Russell King - ARM Linux wrote:
On Mon, Mar 25, 2013 at 12:31:20PM +0100, Thomas Gleixner wrote:
On Fri, 22 Mar 2013, Kevin Hilman wrote:
Hi Thomas,
Thomas Gleixner t...@linutronix.de writes:
Use the generic idle loop and replace enable/disable_hlt
Linus,
please pull the latest timers-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
timers-urgent-for-linus
A single bugfix which prevents that a non functional timer device is
selected to provide the fallback device, which is supposed to serve
On Mon, 25 Mar 2013, Mark Rutland wrote:
Thomas, do you have an idea of if/when tip/timers/urgent will hit mainline?
Thanks for the reminder. I just sent a pull request Linuswards.
Thanks,
tglx
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On Mon, 25 Mar 2013, Andreas Fenkart wrote:
Used to verify invariant in omap_hsmmc, were a gpio is used to detect
sdio irqs during suspend phase. The ref count from irq_enable/irq_disable
is used to control when the irq should be effectively enabled.
irq en irq dis
On Thu, 21 Mar 2013, Greg KH wrote:
On Thu, Mar 21, 2013 at 06:12:02PM +0100, Gerlando Falauto wrote:
This patchset addresses a regression found with the Orion GPIO controller
when both Edge- and Level- based interrupts are requested within the same
GPIO chip. The regression was introduced
On Tue, 26 Mar 2013, Greg KH wrote:
On Tue, Mar 26, 2013 at 09:37:53PM +0100, Thomas Gleixner wrote:
On Thu, 21 Mar 2013, Greg KH wrote:
On Thu, Mar 21, 2013 at 06:12:02PM +0100, Gerlando Falauto wrote:
This patchset addresses a regression found with the Orion GPIO
controller
the caller to hand down struct page * directly and the callee can
compute the pte_t itself.
Net save is one virt_to_page() call and simpler code. While at it, make
__split_large_page static.
Signed-off-by: Borislav Petkov b...@suse.de
Acked-by: Thomas Gleixner t...@linutronix.de
On Wed, 27 Mar 2013, Mike Turquette wrote:
Reentrancy into the clock framework from the clk.h api is necessary
for clocks that are prepared and unprepared via i2c_transfer (which
includes many PMICs and discrete audio chips) as well as for several
other use cases.
That explanation sucks.
On Wed, 27 Mar 2013, Ulf Hansson wrote:
On 27 March 2013 10:55, Viresh Kumar viresh.ku...@linaro.org wrote:
On 27 March 2013 15:10, Thomas Gleixner t...@linutronix.de wrote:
On Wed, 27 Mar 2013, Mike Turquette wrote:
Reentrancy into the clock framework from the clk.h api is necessary
On Wed, 27 Mar 2013, Mike Turquette wrote:
+/*** locking reentrancy ***/
+
+static void clk_fwk_lock(void)
This function name sucks as much as the whole implementation does.
+{
+ /* hold the framework-wide lock, context == NULL */
+ mutex_lock(prepare_lock);
+
+ /* set
On Wed, 27 Mar 2013, Mike Turquette wrote:
Thanks for the review Thomas. I will steal your code and call it my own
in the next version.
Sure.
In particular getting rid of the atomics makes things much nicer.
I'd say using the helper functions and not having all these
conditionals makes it
On Wed, 27 Mar 2013, Jesper Nilsson wrote:
On Thu, Mar 21, 2013 at 09:53:06PM -, Thomas Gleixner wrote:
[snip]
Index: linux-2.6/arch/cris/arch-v32/kernel/process.c
===
--- linux-2.6.orig/arch/cris/arch-v32/kernel
On Wed, 27 Mar 2013, Mike Turquette wrote:
Quoting Laurent Pinchart (2013-03-27 02:08:15)
I wonder if it would make sense to abstract these operations in a generic
recursive mutex. Given that it would delay this patch past v3.10 I won't
push
for that.
Having a nice implementation
On Wed, 27 Mar 2013, Andrew Morton wrote:
On Tue, 26 Mar 2013 19:56:30 -0500 Nathan Zimmer nzim...@sgi.com wrote:
+void sysrq_timer_list_show(void)
+{
+ u64 now = ktime_to_ns(ktime_get());
+ int cpu;
+
+ timer_list_header(NULL, now);
for_each_online_cpu(cpu)
hm, it
On Thu, 28 Mar 2013, Chris Zankel wrote:
For Xtensa:
Acked-by: Chris Zankel ch...@zankel.net
Thanks for going the extra mile and test-compiling it.
Though, the build fails later with:
arch/xtensa/kernel/built-in.o:(.init.literal+0x90): undefined reference to
`platform_pcibios_init'
clk_enable_lock(unsigned long *flags)
+{
+ spin_lock_irqsave(enable_lock, *flags);
+}
+static void clk_enable_unlock(unsigned long *flags)
Please just hand in the flags, no need for indirection.
+{
+ spin_unlock_irqrestore(enable_lock, *flags);
+}
+
Reviewed-by: Thomas Gleixner t
-interruptible, spinlock-protected operations.
When the clk framework is entered we try to hold the global lock. If it
is held we compare the current task id against the current owner; a
s/task id/task/ We store a the task pointer in the owner variable.
Reviewed-by: Thomas Gleixner t...@linutronix.de
On Fri, 8 Mar 2013, Daniel Lezcano wrote:
On 03/06/2013 10:48 AM, Thomas Gleixner wrote:
I was wondering if it would be possible to take the 3/4 and 4/4
otherwise the flag dependency will prevent to send those to the
maintainer's tree until they gain visibility on it.
I can take them
On Fri, 8 Mar 2013, Pavel Emelyanov wrote:
On 02/21/2013 10:21 PM, Pavel Emelyanov wrote:
Hi.
Here's another approach to address the problems with insufficient API
of posix timers.
Gentlemen,
Sir,
that caught my attention. Will move it up on my todo list :)
--
To unsubscribe from
Pavel,
On Thu, 21 Feb 2013, Pavel Emelyanov wrote:
Patch replaces global idr with global hash table for posix timers and
makes timer ids unique not globally, but per process. Next free timer id is
type of integer and stored on signal struct (posix_timer_id). If free timer
id reaches negative
On Fri, 8 Mar 2013, Daniel Lezcano wrote:
Add the dynamic irq affinity feature to the timer clock device.
Signed-off-by: Daniel Lezcano daniel.lezc...@linaro.org
Reviewed-by: Vincent Guittot vincent.guit...@linaro.org
Acked-by: Rickard Andersson rickard.anders...@stericsson.com
---
On Fri, 8 Mar 2013, Till Straumann wrote:
1) I'm not sure adding the SPURIOUS_DEFERRED flag into
threads_handled_last is OK - what happens if the atomic_t counter
can hold more than 31 bits? In this case, when thread handlers
increment the counter there is interference with the
On Fri, 8 Mar 2013, Till Straumann wrote:
On 03/08/2013 05:12 PM, Thomas Gleixner wrote:
On Fri, 8 Mar 2013, Till Straumann wrote:
1) I'm not sure adding the SPURIOUS_DEFERRED flag into
threads_handled_last is OK - what happens if the atomic_t counter
can hold more than 31
On Fri, 8 Feb 2013, Yinghai Lu wrote:
Now after irq remapping is enabled, irq_chip fields are modified during
every irq setup.
Only need to change them one during we enable irq mapping.
Can you please start to write sensible changelogs? I'm really sick of
your sloppyness.
Also change
On Fri, 8 Mar 2013, Thomas Gleixner wrote:
On Fri, 8 Feb 2013, Yinghai Lu wrote:
Now after irq remapping is enabled, irq_chip fields are modified during
every irq setup.
Only need to change them one during we enable irq mapping.
Can you please start to write sensible changelogs? I'm
Yinghai,
On Thu, 7 Mar 2013, Yinghai Lu wrote:
On Thu, Mar 7, 2013 at 9:50 PM, Tejun Heo t...@kernel.org wrote:
On Thu, Mar 07, 2013 at 08:58:30PM -0800, Yinghai Lu wrote:
We will find acpi tables in initrd during head_32.S in 32bit flat mode.
So need acpi_initrd_override_find could
Oleg,
On Mon, 11 Mar 2013, Oleg Nesterov wrote:
Imho, task_get_live_kthread() is very confusing and unneeded.
2a1d4460 copied get_task_struct() + vfork_done != NULL from
kthread_stop(), but only kthread_stop() needs them both.
It needs get_task_struct() because kthread_stop() can be used
On Tue, 12 Mar 2013, Chuansheng Liu wrote:
According to commit 9c6079aa1bf(genirq: Do not consider disabled
wakeup irqs), we should not break the suspend when one irq is pending
but has been disabled before suspending.
But there is another case missed, that one irq with flag IRQF_NO_SUSPEND,
On Tue, 12 Mar 2013, Oleg Nesterov wrote:
Hi Thomas,
On 03/11, Thomas Gleixner wrote:
On Mon, 11 Mar 2013, Oleg Nesterov wrote:
But the actual reason for this cleanup is that I do not understand
why park/unpark abuse kthread.c.
It's not abusing it :)
Yes, yes, I didn't
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