Hi All,
The following patches make two more changes to the ACPI namespace scanning
code that I think are more-or-less useful:
[1/2] Introduce lock to prevent acpi_bus_scan() from running in parallel with
acpi_bus_trim() to avoid removing device nodes while we're setting
them up.
From: Borislav Petkov b...@suse.de
This should be under the PARAVIRT_GUEST menu.
Signed-off-by: Borislav Petkov b...@suse.de
---
arch/x86/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2d621032525a..201b8aa93f8f 100644
From: Borislav Petkov b...@suse.de
Put all config options needed to run Linux as a guest behind a
CONFIG_HYPERVISOR_GUEST menu so that they don't get built-in by default
but be selectable by the user. Also, make all units which depend on
x86_hyper, depend on this new symbol so that compilation
On Sat, Jan 26, 2013 at 2:41 PM, Rafael J. Wysocki r...@sisk.pl wrote:
From: Rafael J. Wysocki rafael.j.wyso...@intel.com
There is no guarantee that acpi_bus_scan() and acpi_bus_trim() will
not be run in parallel for the same scope of the ACPI namespace,
which may lead to a great deal of
On Wed, 23 Jan 2013 10:32:17 +0800
Freddy Xin fre...@asix.com.tw wrote:
This is a resubmission.
Fixed coding style errors.
[...]
This patch adds a driver for ASIX's AX88179 family of USB 3.0/2.0
to gigabit ethernet adapters. It's based on the AX88xxx driver but
I hope, there is some
On Sat, Jan 26, 2013 at 2:43 PM, Rafael J. Wysocki r...@sisk.pl wrote:
From: Rafael J. Wysocki rafael.j.wyso...@intel.com
Make acpi_bus_scan_fixed() use device_attach() directly to attach
drivers, if any, to the fixed devices in analogy with how
acpi_bus_scan() works, which allows the last
On Fri, Jan 25, 2013 at 4:04 PM, Bjorn Helgaas bhelg...@google.com wrote:
On Tue, Jan 22, 2013 at 3:19 PM, Yinghai Lu ying...@kernel.org wrote:
I first pulled in
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
acpi-scan again (to pci/acpi-scan2), added your acks, Rafael, and
On Sat, Jan 26, 2013 at 9:17 AM, Tetsuo Handa
penguin-ker...@i-love.sakura.ne.jp wrote:
I did a blind git bisection (i.e. starting
$ qemu-system-arm -M versatilepb -hda hda.img -kernel arch/arm/boot/zImage
-append root=/dev/sda1 init=/bin/sh -nographic
and watching top for %CPU usage of
Hello!
The following are changes to documentation and rcutorture:
1. Export trace_clock_local() in order to allow rcutorture event
tracing to emit the time of the beginning of the RCU read-side
critical section at the point where a failure is detected.
2. Reduce
From: Paul E. McKenney paul.mcken...@linaro.org
The rcutorture tests need to be able to trace the time of the
beginning of an RCU read-side critical section, and thus need access
to trace_clock_local(). This commit therefore adds a the needed
EXPORT_SYMBOL_GPL().
Signed-off-by: Paul E. McKenney
From: Paul E. McKenney paul...@linux.vnet.ibm.com
A number of kthreads have been added to rcutorture, but the shuffler
task was not informed of them, and thus did not shuffle them. This
commit therefore adds the requisite shuffling.
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
---
From: Richard Braun rbr...@sceen.net
Add atomic_xchg() to documentation for atomic operations and
memory barriers.
Signed-off-by: Richard Braun rbr...@sceen.net
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
Reviewed-by: Josh Triplett j...@joshtriplett.org
---
Hi Linus,
On Tue, Jan 22, 2013 at 02:25:35PM +0100, Linus Walleij wrote:
On Tue, Jan 22, 2013 at 4:25 AM, Samuel Ortiz sa...@linux.intel.com wrote:
On Mon, Jan 07, 2013 at 09:13:18AM +0100, Linus Walleij wrote:
From: Linus Walleij linus.wall...@linaro.org
These static inlines are
From: Paul E. McKenney paul...@linux.vnet.ibm.com
When the type of global variable blimit changed from int to long, the
type of the blimit argument of trace_rcu_batch_start() needed to have
changed. This commit fixes this issue.
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
From: Frederic Weisbecker fweis...@gmail.com
This subsystem lacks many explanations on its purpose and
design. Add these missing comments.
v4: Document function parameter to be more kernel-doc
friendly, as per Namhyung suggestion.
Reported-by: Andrew Morton a...@linux-foundation.org
From: Borislav Petkov b...@suse.de
... and fix the following warning:
arch/x86/mm/numa.c: In function ‘setup_node_data’:
arch/x86/mm/numa.c:222:3: warning: passing argument 1 of ‘__phys_addr_nodebug’
makes integer from pointer without a cast [enabled by default]
In file included from
From: Dave Hansen d...@linux.vnet.ibm.com
The RCU-related debugging Kconfig options are in two different places,
and consume too much screen real estate. This commit therefore
consolidates them into their own menu.
Signed-off-by: Dave Hansen d...@linux.vnet.ibm.com
Signed-off-by: Paul E.
From: Li Zhong zh...@linux.vnet.ibm.com
This patch uses the real new value of dynticks_nesting instead of 0 in
rcu_eqs_enter_common().
Signed-off-by: Li Zhong zh...@linux.vnet.ibm.com
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
Reviewed-by: Josh Triplett j...@joshtriplett.org
---
From: Paul E. McKenney paul...@linux.vnet.ibm.com
It turns out that gcc 4.8 warns on array indexes being out of bounds
unless it can prove otherwise. It gives this warning on some RCU
initialization code. Because this is far from any fastpath, add
an explicit check for array bounds and panic if
From: Cody P Schafer c...@linux.vnet.ibm.com
Small grammar fix in rcutree comment regarding 'rcu_scheduler_active'
var.
Signed-off-by: Cody P Schafer c...@linux.vnet.ibm.com
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
Reviewed-by: Josh Triplett j...@joshtriplett.org
---
From: Sasha Levin sasha.le...@oracle.com
Signed-off-by: Sasha Levin sasha.le...@oracle.com
Reviewed-by: Josh Triplett j...@joshtriplett.org
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
---
kernel/rcutorture.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git
From: Li Zhong zh...@linux.vnet.ibm.com
As context tracking subsystem evolved, it stopped using ignore_user_qs
and in_user defined in the rcu_dynticks structure. This commit therefore
removes them.
Signed-off-by: Li Zhong zh...@linux.vnet.ibm.com
Signed-off-by: Paul E. McKenney
Linus Walleij wrote:
I'm trying to reproduce this, but how do you reconfigure the kernel to
get PCI, SCSI and such stuff enabled?
The stock versatile_defconfig does not even have SCSI enabled...
I'm using a customized config for qemu. I've just updated the config to
Hello!
This series contains callback-tagging patches. These were sent earlier
in the idle/no-CBs series, but have been isolated as the more trustworthy
part of that series.
1. Tag callback lists with the grace-period number that they are
waiting for. This change enables a number
Hi Wei,
On Wed, Jan 23, 2013 at 09:51:03AM +0800, wei_w...@realsil.com.cn wrote:
From: Wei WANG wei_w...@realsil.com.cn
1. The method to switch output voltage is different in rtl8411
2. Fix the formula to calculate N from SD clock if clock divider is more than
1
Wei WANG (3):
From: Paul E. McKenney paul.mcken...@linaro.org
Currently, rcutorture traces every read-side access. This can be
problematic because even a two-minute rcutorture run on a two-CPU system
can generate 28,853,363 reads. Normally, only a failing read is of
interest, so this commit traces adjusts
Hi Sachin,
On Thu, Jan 24, 2013 at 09:13:20AM +0530, Sachin Kamat wrote:
Hi Samuel,
On 8 January 2013 16:06, Mark Brown broo...@opensource.wolfsonmicro.com
wrote:
On Tue, Jan 08, 2013 at 02:01:22PM +0530, Sachin Kamat wrote:
devm_regulator_bulk_get is device managed and saves some
From: Josh Triplett j...@joshtriplett.org
Both rcutiny and rcutree define a helper function named
rcu_is_cpu_rrupt_from_idle(), each used exactly once, later in the
same file. This commit therefore declares these helper functions static.
Signed-off-by: Josh Triplett j...@joshtriplett.org
Hi Laxman,
On Thu, Jan 03, 2013 at 04:16:56PM +0530, Laxman Dewangan wrote:
This series add the RTC and gpio driver for the TI Palma series PMIC.
The changes are splitted so that easy to apply in different sub systems.
Laxman Dewangan (4):
mfd: palmas: add rtc irq number as irq resource
Hello!
The following fixes are intended for 3.9:
1. Fix int/long type confusion in trace_rcu_start_batch().
2. Declare rcu_is_cpu_rrupt_from_idle() static, courtesy of
Josh Triplett.
3. Make rcu_eqs_enter_common() trace the new nesting value instead
of zero,
From: Paul E. McKenney paul...@linux.vnet.ibm.com
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
---
include/linux/rcupdate.h |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 275aa3f..7e12dba 100644
Hi Axel,
On Fri, Jan 25, 2013 at 11:08:00AM +0800, Axel Lin wrote:
2013/1/22 Samuel Ortiz sa...@linux.intel.com
Hi Axel,
On Tue, Dec 25, 2012 at 10:52:49AM +0800, Axel Lin wrote:
Current code uses pcf-dev in the dev_err call before setting it to
client-dev. Fix it.
Hi Ashish,
On Fri, Jan 25, 2013 at 02:03:49PM +0530, Ashish Jangam wrote:
An issue has been reported where the PMIC either locks up or fails to
respond following a system Reset. This could result in a second write
in which the bus writes the current content of the write buffer to address
of
From: Paul E. McKenney paul.mcken...@linaro.org
Currently, the only way to specify no-CBs CPUs is via the rcu_nocbs
kernel command-line parameter. This is inconvenient in some cases,
particularly for randconfig testing, so this commit adds a new
RCU_NOCB_CPU_DEFAULT kernel configuration
Hi Arnd,
On Fri, Jan 25, 2013 at 10:44:08PM +, Arnd Bergmann wrote:
If the twl4030_write_script function gets called with
a zero length argument, its return value does not
get set. We know that all scripts have a nonzero
length, but returning an error in case they ever
do is probably
From: Paul E. McKenney paul...@linux.vnet.ibm.com
Currently, CPU 0 is constrained to not be a no-CBs CPU, and furthermore
at least one no-CBs CPU must remain online at any given time. These
restrictions are problematic in some situations, such as cases where
all CPUs must run a real-time
Hi Hugh,
On Fri, 2013-01-25 at 17:54 -0800, Hugh Dickins wrote:
From: Petr Holasek phola...@redhat.com
Introduces new sysfs boolean knob /sys/kernel/mm/ksm/merge_across_nodes
which control merging pages across different numa nodes.
When it is set to zero only pages from the same node are
On 01/25/2013 10:43 AM, Borislav Petkov wrote:
On Fri, Jan 25, 2013 at 07:35:07PM +0100, Borislav Petkov wrote:
Ok, if you prefer. We can definitely make all .o's which depend on
x86_hyper also depend on CONFIG_HYPERVISOR_GUEST - this solves the
whole deal trivially.
I'll respin the patches.
On Sat, Jan 26, 2013 at 12:02:11AM -0500, Naoya Horiguchi wrote:
Currently soft_offline_page() is hard to maintain because it has many
return points and goto statements. All of this mess come from get_any_page().
This function should only get page refcount as the name implies, but it does
some
At Thu, 24 Jan 2013 13:15:21 -0800,
Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 3.4.28 release.
There are 22 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
At Thu, 24 Jan 2013 13:12:38 -0800,
Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 3.7.5 release.
There are 46 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
On Fri, 25 Jan 2013, Shaohua Li wrote:
On Thu, Jan 24, 2013 at 10:45:57PM -0500, Sasha Levin wrote:
Hi folks,
Commit swap: make each swap partition have one address_space is triggering
a series of warnings on boot:
[3.446071] [ cut here ]
[3.446664]
Hi Hugh,
On Fri, 2013-01-25 at 18:00 -0800, Hugh Dickins wrote:
In some places where get_ksm_page() is used, we need the page to be locked.
In function get_ksm_page, why check page-mapping =
get_page_unless_zero = check page-mapping instead of
get_page_unless_zero = check page-mapping,
On 01/24/2013 11:07 PM, Alex Shi wrote:
On 01/24/2013 05:44 PM, Borislav Petkov wrote:
On Thu, Jan 24, 2013 at 11:06:42AM +0800, Alex Shi wrote:
Since the runnable info needs 345ms to accumulate, balancing
doesn't do well for many tasks burst waking. After talking with Mike
Galbraith, we are
于 2013-01-27 4:54, Chris Clayton 写道:
Hi Martin,
On 01/24/13 19:21, Martin Mokrejs wrote:
Hi Chris,
try to include in kernel only acpiphp and omit pciehp. Don't use modules
but include
them statically. And try, in addition, check whether pcie_aspm=off in
grub.conf helped.
Thanks
On Fri, 2013-01-25 at 18:00 -0800, Hugh Dickins wrote:
In some places where get_ksm_page() is used, we need the page to be locked.
When KSM migration is fully enabled, we shall want that to make sure that
the page just acquired cannot be migrated beneath us (raised page count is
only
On Sat, Jan 26, 2013 at 11:45:35AM +, Arnd Bergmann wrote:
Gcc warns about the case where regmap_read_debugfs tries to walk an
empty map-debugfs_off_cache list, which would results in uninitialized
variable getting returned, if we hadn't checked the same condition
just before that.
On Sat, 26 Jan 2013, Simon Jeons wrote:
On Fri, 2013-01-25 at 17:54 -0800, Hugh Dickins wrote:
From: Petr Holasek phola...@redhat.com
@@ -1122,6 +1166,18 @@ struct rmap_item *unstable_tree_search_i
return NULL;
}
+ /*
+* If
On Fri, Jan 25, 2013 at 10:20:29AM +0800, Axel Lin wrote:
The dev parameter is the device requesting the data.
In this case it should be pdev-dev rather than pdev-dev.parent.
Applied all, thanks.
signature.asc
Description: Digital signature
On Sat, Jan 26, 2013 at 01:19:47PM +0800, Axel Lin wrote:
Signed-off-by: Axel Lin axel@ingics.com
Applied, thanks.
signature.asc
Description: Digital signature
On Sat, 2013-01-26 at 18:54 -0800, Hugh Dickins wrote:
On Sat, 26 Jan 2013, Simon Jeons wrote:
On Fri, 2013-01-25 at 17:54 -0800, Hugh Dickins wrote:
From: Petr Holasek phola...@redhat.com
@@ -1122,6 +1166,18 @@ struct rmap_item *unstable_tree_search_i
return NULL;
On Thu, Jan 24, 2013 at 04:25:18PM +0530, Vishwanathrao Badarkhe, Manish wrote:
Add device tree based initialization support for
TI's tps6507x regulators.
Applied, thanks. Please always use subject lines appropriate for the
subsystem you are submitting against - this is not a DaVinci change.
On Mon, Jan 21, 2013 at 11:38:40AM -0600, Matt Sealey wrote:
MC13892 PMIC supports a HI bit for 3 of it's 4 buck switcher outputs,
which enables a higher set of voltage ranges.
Applied, thanks.
signature.asc
Description: Digital signature
On Mon, Jan 21, 2013 at 12:25:45PM -0600, Matt Sealey wrote:
Imagine a situation where a device tree has a few regulators in an
appropriate node:
Applied, thanks. Always use subject lines appropriate for the
subsystem.
signature.asc
Description: Digital signature
On Wed, Jan 09, 2013 at 06:31:09PM +0100, Lars-Peter Clausen wrote:
The second function spi_sync_transfer() takes a SPI device and an array of
spi_transfers. It will allocate a new spi_message (on the stack) and add all
transfers in the array to the message. Finally it will call spi_sync() on
Hi,
[CC'd extract-ikconfig creator]
I've seen too many systems where the config to build the used kernel got
lost and people were unable to diagnose problems or to rebuild a modified
or updated kernel. It's a subject which worries me since several years.
I'm strongly in favour of such a
Not strictly required as probe deferral will take care of everything but
it makes boot a little smoother.
Reported-by: Ryo Tsutsui ryo.tsut...@wolfsonmicro.com
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/arizona-core.c |4 ++--
1 file changed, 2
The latest evaluation of the revision B silicon suggests some changes to
the tuning applied for optimal performance.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/wm5102-tables.c | 12 +++-
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git
Runtime power management does not function during system suspend but the
Arizona devices need to use runtime power management to power up the device
in order to handle interrupts. Try to avoid interrupts firing during
resume by disabling the primary IRQ before interrupts are reenabled on
resume
Since regmap sometimes uses volatile as a proxy for readable simply
having a blanket condition can mark too many registers as readable.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/wm5102-tables.c | 11 +++
1 file changed, 7 insertions(+), 4
Rather than disabling the error reporting only for earlier revisions
unconditionally disable it.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/arizona-irq.c | 18 ++
1 file changed, 2 insertions(+), 16 deletions(-)
diff --git
The microphone detection levels for Arizona parts can be customised.
Allow this to be done via platform data, the values chosen will depend
on the system design and determined in discussion with Wolfson.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/arizona-core.c
If the control bus is unrelabile we may hit errors during regcache_sync(),
especially given that it tends to be one the most dense bursts of I/O in
many systems.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/arizona-core.c |7 ++-
1 file changed, 6
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/wm5102-tables.c |8
1 file changed, 8 insertions(+)
diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 0317d11..167e6c4 100644
--- a/drivers/mfd/wm5102-tables.c
+++
We can cache some of them but this is simpler for now.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/wm5102-tables.c |8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index
The WM5102 register defaults are not up to date with the current register
map, synchronise them with those for current devices.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/mfd/wm5102-tables.c | 95 +++
1 file changed, 33
On Sun, 2013-01-27 at 10:41 +0800, Alex Shi wrote:
On 01/24/2013 11:07 PM, Alex Shi wrote:
On 01/24/2013 05:44 PM, Borislav Petkov wrote:
On Thu, Jan 24, 2013 at 11:06:42AM +0800, Alex Shi wrote:
Since the runnable info needs 345ms to accumulate, balancing
doesn't do well for many tasks
Hi Hugh,
On Fri, 2013-01-25 at 18:01 -0800, Hugh Dickins wrote:
Switching merge_across_nodes after running KSM is liable to oops on stale
nodes still left over from the previous stable tree. It's not something
that people will often want to do, but it would be lame to demand a reboot
when
From: Paul E. McKenney paul...@linux.vnet.ibm.com
The TINY_PREEMPT_RCU is complex, does not provide that much memory
savings, and therefore TREE_PREEMPT_RCU should be used instead. The
systems where the difference between TINY_PREEMPT_RCU and TREE_PREEMPT_RCU
are quite small compared to the
From: Paul E. McKenney paul.mcken...@linaro.org
Now that rcu_start_future_gp() has been abstracted from
rcu_nocb_wait_gp(), rcu_accelerate_cbs() can invoke rcu_start_future_gp()
so as to register the need for any future grace periods needed by a
CPU about to enter dyntick-idle mode. This commit
From: Paul E. McKenney paul.mcken...@linaro.org
CPUs going idle will need to record the need for a future grace
period, but won't actually need to block waiting on it. This commit
therefore splits rcu_start_future_gp(), which does the recording, from
rcu_nocb_wait_gp(), which now invokes
From: Paul E. McKenney paul...@linux.vnet.ibm.com
Currently, callbacks are advanced each time the corresponding CPU
notices a change in its leaf rcu_node structure's -completed value
(this value counts grace-period completions). This approach has worked
quite well, but with the advent of
From: Paul E. McKenney paul...@linux.vnet.ibm.com
This commit adds event tracing for callback acceleration to allow better
tracking of callbacks through the system.
Signed-off-by: Paul E. McKenney paul...@linux.vnet.ibm.com
---
include/trace/events/rcu.h |6 --
kernel/rcutree.c
From: Paul E. McKenney paul.mcken...@linaro.org
If CPUs are to give prior notice of needed grace periods, it will be
necessary to invoke rcu_start_gp() without dropping the root rcu_node
structure's -lock. This commit takes a first step in this direction
by moving the release of this lock to the
Hello!
This series provides a couple of tiny-RCU changes:
1. Make Tiny RCU emit RCU CPU stall warnings when RCU_TRACE=y.
2. Allow TREE_PREEMPT_RCU to be used on UP systems.
Changes since v1:
o Updated #1 as suggested by Josh Triplett to simplify the
#if expressions.
o
From: Paul E. McKenney paul.mcken...@linaro.org
RCU_FAST_NO_HZ operation is controlled by four compile-time C-preprocessor
macros, but some use cases benefit greatly from runtime adjustment,
particularly when tuning devices. This commit therefore creates the
corresponding sysfs entries.
From: Paul E. McKenney paul.mcken...@linaro.org
Now that callback acceleration is idempotent, it is safe to accelerate
callbacks during grace-period cleanup on any CPUs that the kthread happens
to be running on. This commit therefore propagates the completion
of the grace period to the per-CPU
From: Paul E. McKenney paul.mcken...@linaro.org
Because RCU callbacks are now associated with the number of the grace
period that they must wait for, CPUs can now take advance callbacks
corresponding to grace periods that ended while a given CPU was in
dyntick-idle mode. This eliminates the need
From: Paul E. McKenney paul.mcken...@linaro.org
Tiny RCU has historically omitted RCU CPU stall warnings in order to
reduce memory requirements, however, lack of these warnings caused
Thomas Gleixner some debugging pain recently. Therefore, this commit
adds RCU CPU stall warnings to tiny RCU if
From: Paul E. McKenney paul.mcken...@linaro.org
If CPUs are to give prior notice of needed grace periods, it will be
necessary to invoke rcu_start_gp() without dropping the root rcu_node
structure's -lock. This commit takes a second step in this direction
by moving the release of this lock to
From: Paul E. McKenney paul.mcken...@linaro.org
Currently, the per-no-CBs-CPU kthreads are named rcuo followed by
the CPU number, for example, rcuo. This is problematic given that
there are either two or three RCU flavors, each of which gets a per-CPU
kthread with exactly the same name. This
From: Paul E. McKenney paul.mcken...@linaro.org
CPUs going idle need to be able to indicate their need for future grace
periods. A mechanism for doing this already exists for no-callbacks
CPUs, so the idea is to re-use that mechanism. This commit therefore
moves the -n_nocb_gp_requests field of
From: Paul E. McKenney paul.mcken...@linaro.org
Dyntick-idle CPUs need to be able to pre-announce their need for grace
periods. This can be done using something similar to the mechanism used
by no-CB CPUs to announce their need for grace periods. This commit
moves in this direction by renaming
Hello!
This series contains changes to RCU_FAST_NO_HZ idle entry/exit and also
removes restrictions on no-CBs CPUs. This series contains some commits
that are still a bit on experimental side, so you should avoid using
these patches unless you would like to help debug them. ;-)
1. Remove
On Fri, 2013-01-25 at 18:03 -0800, Hugh Dickins wrote:
KSM page migration is already supported in the case of memory hotremove,
which takes the ksm_thread_mutex across all its migrations to keep life
simple.
But the new KSM NUMA merge_across_nodes knob introduces a problem, when
it's set to
On Tue, Jan 15, 2013 at 04:35:41AM +, Kim, Milo wrote:
A Regulator can be enabled by external GPIO pin.
This is configurable in the regulator_config.
Please use subject lines matching the subsystem - not doing this makes
it more likely that patches will be missed or responses delayed.
On Tue, Jan 15, 2013 at 04:35:46AM +, Kim, Milo wrote:
+/**
+ * Balance enable_count of each GPIO and actual GPIO pin control.
+ * GPIO is enabled in case of initial use. (enable_count is 0)
+ * GPIO is disabled when it is not shared any more. (enable_count is 1)
+ */
+static void
Serge E. Hallyn se...@hallyn.com writes:
Quoting Eric W. Biederman (ebied...@xmission.com):
There is no backing store to ramfs and file creation
rules are the same as for any other filesystem so
it is semantically safe to allow unprivileged users
to mount it.
The memory control group
On Tue, Jan 15, 2013 at 04:35:50AM +, Kim, Milo wrote:
The regulator_ena_gpio_request() allocates the enable GPIO and add the list.
Related resources should be released if they are not used any more.
To free requested GPIO and remove it from the enable GPIO list,
new function,
platform_device_alloc could failed and return NULL,
we should check this before call platform_device_put.
Signed-off-by: Wang YanQing udkni...@gmail.com
---
drivers/video/uvesafb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/video/uvesafb.c
On Tue, Jan 15, 2013 at 04:35:53AM +, Kim, Milo wrote:
Regulator core driver provides enable GPIO control for enabling/disabling a
regulator. Now, enable GPIO is shared among regulators.
Use this internal working, so unnecessary code are removed.
GPIO enable pin configurations are
On Fri, Jan 18, 2013 at 10:17:00AM +0100, Michal Bachraty wrote:
u32 rotate = (32 - word_length) / 4;
This implementation is wrong, but it works only for 16, or 32 bit audio data.
Applied, thanks.
signature.asc
Description: Digital signature
On Sat, Jan 26, 2013 at 03:06:53PM +0900, Dongjin Kim wrote:
Hello Mark,
Yes, this is not ARM-specific chip at all. Just wanted to be reviewed
by you and others if the format is ok before integrating to my board
file. I had sent similar one before,
Hi, John,
Compiling fails because __dev* prefix should be removed
due to upstream changes.
You said that patch 3 need to be rework, but I don't know
how to improve... Could you please tell me where is unsane?
Maybe you means I should make cpu_has_coherent_cache a
runtime value rather than a
Serge E. Hallyn se...@hallyn.com writes:
Quoting Eric W. Biederman (ebied...@xmission.com):
In the help text describing user namespaces recommend use of memory
control groups. In many cases memory control groups are the only
mechanism there is to limit how much memory a user who can create
On Fri, 2013-01-25 at 18:10 -0800, Hugh Dickins wrote:
Complaints are rare, but lockdep still does not understand the way
ksm_memory_callback(MEM_GOING_OFFLINE) takes ksm_thread_mutex, and
holds it until the ksm_memory_callback(MEM_OFFLINE): that appears
to be a problem because notifier
From: Wanlong Gao gaowanl...@cn.fujitsu.com
Date: Fri, 25 Jan 2013 17:51:29 +0800
As Michael mentioned, set affinity and select queue will not work very
well when CPU IDs are not consecutive, this can happen with hot unplug.
Fix this bug by traversal the online CPUs, and create a per cpu
From: Wanlong Gao gaowanl...@cn.fujitsu.com
Date: Fri, 25 Jan 2013 17:51:30 +0800
Split out the clean affinity function to virtnet_clean_affinity().
Cc: Rusty Russell ru...@rustcorp.com.au
Cc: Michael S. Tsirkin m...@redhat.com
Cc: Jason Wang jasow...@redhat.com
Cc: Eric Dumazet
From: Wanlong Gao gaowanl...@cn.fujitsu.com
Date: Fri, 25 Jan 2013 17:51:31 +0800
Add a cpu notifier to virtio-net, so that we can reset the
virtqueue affinity if the cpu hotplug happens. It improve
the performance through enabling or disabling the virtqueue
affinity after doing cpu hotplug.
Use GFP_DMA in order to ensure that the memory we allocate for transfers
in spi_write_then_read() can be DMAed. On most platforms this will have
no effect.
Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
drivers/spi/spi.c |3 ++-
1 file changed, 2 insertions(+), 1
401 - 500 of 506 matches
Mail list logo
