Typically we return error pointers when we want to use those
pointers in the non-error case, but this function is just
returning error pointers or NULL for success. Change the style to
plain int to follow normal kernel coding styles.
Cc: Joachim Eastwood
Signed-off-by: Stephen Boyd
---
Previously we recorded "last interrupt position" and used it in
pointer callback. This is not correct implementation, and it causes
underruns when user space monitors buffer level to decide when to
send next data chunk in low latency application.
Remove position recording in IRQ handler and also
-Original Message-
From: Borislav Petkov [mailto:b...@alien8.de]
Sent: Wednesday, December 2, 2015 8:28 PM
To: Chrzaniuk, Hubert
Cc: Anaczkowski, Lukasz ;
mche...@osg.samsung.com; dougthomp...@xmission.com; linux-e...@vger.kernel.org;
linux-kernel@vger.kernel.org; Snow, Jim M
Subject:
On Wed, Dec 02, 2015 at 05:02:19PM +0300, Sergei Shtylyov wrote:
> Hello.
>
> On 12/2/2015 3:54 PM, LABBE Corentin wrote:
>
> > The simple_strtol function is obsolete.
> > This patch replace it by kstrtoint.
> > This will simplify code, since some error case not handled by
> > simple_strtol are
On Wed 2015-12-02 22:43:31, Chris Snook wrote:
> On Tue, Dec 1, 2015 at 12:35 PM David Miller wrote:
>
> > From: Michal Hocko
> > Date: Mon, 30 Nov 2015 14:21:29 +0100
> >
> > > On Sat 28-11-15 15:51:13, Pavel Machek wrote:
> > >>
> > >> atl1c driver is doing order-4 allocation with GFP_ATOMIC
Hi!
If I enable CONFIG_CPU_SW_DOMAIN_PAN, I sometimes (but not always) get the
following (or very similar) on boot.
Cheers,
Peter
Unhandled fault: page domain fault (0x81b) at 0x00086578
pgd = c281
[00086578] *pgd=22819831, *pte=224fe34f, *ppte=224fe83f
Internal error: : 81b [#1] ARM
On 12/01, Sudip Mukherjee wrote:
> We were not checking the return from devm_add_action() which can fail.
>
> Signed-off-by: Sudip Mukherjee
> ---
> drivers/clk/qcom/common.c | 13 ++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/clk/qcom/common.c
On Wed, Dec 02, 2015 at 02:27:40PM -0700, Jens Axboe wrote:
> On 12/02/2015 02:14 PM, Keith Busch wrote:
>> On Wed, Dec 02, 2015 at 02:07:34PM -0700, Jens Axboe wrote:
>>> Christoph, for-4.5/nvme also fails if integrity isn't enabled:
>>
>> I forgot about this since I've merged this in my repo to
On 12/01, Maxime Ripard wrote:
> Contrary to what the datasheet says, the pre divider doesn't seem to be
> incremented by one in the PLL2, but just uses the value from the register,
> with 0 being a bypass.
>
> This fixes the audio playing too fast.
>
> Since we now have the same pre-divider
Major changes from v2:
o Split patchset into two parts, one is for replacing compaction
deferring with compaction limit and the other is for changing
scanner activity
o Add some fixes and cleanup for current defer logic
o Fix opposite direction problem in "skip useless pfn when..." patch
o Reuse
If compact_order_failed is initialized to 0 and order-9
compaction is continually failed, defer counter will be updated
to activate deferring. Although other defer counters will be properly
updated, compact_order_failed will not be updated because failed order
cannot be lower than
From: Namhyung Kim [mailto:namhy...@kernel.org]
>
>On Thu, Dec 03, 2015 at 12:15:12AM +, 平松雅巳 / HIRAMATU，MASAMI wrote:
>> >From: Namhyung Kim [mailto:namhy...@gmail.com] On Behalf Of Namhyung Kim
>> >
>> >Backtrace is a crucial info for debugging. And upcoming refcnt
>> >tracking facility
It's rather strange that compact_considered and compact_defer_shift aren't
updated but compact_order_failed is updated when allocation is expected
to succeed. Regardless actual allocation success, deferring for current
order will be disabled so it doesn't result in much difference to
compaction
This is preparation step to replace compaction deferring with compaction
limit. Whole reason why we need to replace it will be mentioned in
the following patch.
In this patch, migration_scan_limit is assigned and accounted, but, not
checked to finish. So, there is no functional change.
Compaction deferring effectively reduces compaction overhead if
compaction success isn't expected. But, it is implemented that
skipping a number of compaction requests until compaction is re-enabled.
Due to this implementation, unfortunate compaction requestor will get
whole compaction overhead
It's not used externally. Remove it in compaction.h.
Signed-off-by: Joonsoo Kim
---
include/linux/compaction.h | 1 -
mm/compaction.c| 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index 4cd4ddf..359b07a
It doesn't make sense that we reset defer counter
in compaction_defer_reset() when compaction request under the order of
compact_order_failed succeed. Fix it.
And, it does make sense that giving enough chance for updated failed
order compaction before deferring. Change it.
Signed-off-by: Joonsoo
Cached pfn is used to determine the start position of scanner
at next compaction run. Current cached pfn points the skipped pageblock
so we uselessly checks whether pageblock is valid for compaction and
skip-bit is set or not. If we set scanner's cached pfn to next pfn of
skipped pageblock, we
The APBS clock on sun9i is the same as the APB0 clock on sun8i. With
sun9i we are supporting the PRCM clocks by using CLK_OF_DECLARE,
instead of through a PRCM mfd device and subdevices for each clock
and reset control. As such we need a CLK_OF_DECLARE version of
the sun8i-a23-apb0-clk driver.
>
> Dmitry Vyukov reported the following memory leak
>
> unreferenced object 0x88002eaafd88 (size 32):
> comm "a.out", pid 5063, jiffies 4295774645 (age 15.810s)
> hex dump (first 32 bytes):
> 28 e9 4e 63 00 88 ff ff 28 e9 4e 63 00 88 ff ff (.Nc(.Nc
> 00 00 00 00 00 00
> From: Tian, Kevin
> Sent: Friday, November 20, 2015 4:36 PM
>
> >
> > > > So, for non-opengl rendering qemu needs the guest framebuffer data so it
> > > > can feed it into the vnc server. The vfio framebuffer region is meant
> > > > to support this use case.
> > >
> > > what's the format
On 1 December 2015 at 21:13, Andreas Mohr wrote:
> Hi,
>
>> I don't really care if the maintainers are encoded or whatever.
>> However, neither get_maintainers nor git format-patch encodes them and
>> the listserver rejects them when not encoded.
>
> "neither ... nor" - IMHO transcoding should
On 3.12.2015 5:10, Joonsoo Kim wrote:
> This patch uses is_via_compact_memory() to distinguish compaction
> from sysfs or sysctl. And, this patch also reduces indentation
> on compaction_defer_reset() by filtering these cases first
> before checking watermark.
>
> There is no functional change.
>
On 2015/11/3 5:33, ja...@microsoft.com wrote:
> From: Jake Oshins
>
> This patch adds an fwnode_handle to struct pci_sysdata, which is
> used by the next patch in the series when trying to locate an
> IRQ domain associated with a root PCI bus.
>
> Signed-off-by: Jake Oshins
> ---
>
On Wed, Dec 02, 2015 at 10:12:29AM -0500, Jeff Moyer wrote:
> Dave Chinner writes:
>
> > On Tue, Dec 01, 2015 at 03:43:46PM -0700, Ross Zwisler wrote:
> >> I'm seeing a new intermittent xfstests failure with v4.4-rc3 using XFS and
> >> DAX. The test that is failing is generic/083, and it fails
On 12/03, Masahiro Yamada wrote:
> Currently, of_clk_get_parent_name() returns a wrong parent clock name
> when "clock-indices" property exists and the target index is not
> found in the property. In this case, NULL should be returned.
>
> For example,
>
> oscillator {
>
The UART3 is assigned with IRQ 29 for old SoCs, IRQ 177 for new ones,
and PH1-Pro4 is on the boundary.
PH1-sLD3: UART3 is unavailable
PH1-LD4, PH1-sLD8: only IRQ 29 is supported
PH1-Pro4: both IRQ 29 and 177 are supported
PH1-Pro5, ProXstream2, PH1-LD6b: only IRQ 177 is supported
This
UniPhier SoCs (except PH1-sLD3) have several nodes in common.
Factor out them into uniphier-common32.dtsi. This improves the code
maintainability.
PH1-sLD3 is so old that it has more or less different register maps
than the others. So, it cannot be included in this refactoring.
Signed-off-by:
Masahiro Yamada (2):
ARM: dts: uniphier: change IRQ number of UART3 of PH1-Pro4 SoC
ARM: dts: uniphier: factor out common nodes to uniphier-common32.dtsi
arch/arm/boot/dts/uniphier-common32.dtsi| 135 +
arch/arm/boot/dts/uniphier-ph1-ld4.dtsi | 265
Hi,
On Thu, Dec 03, 2015 at 11:38:14AM +0530, Roger Quadros wrote:
> On 03/12/15 10:39, Brian Norris wrote:
> > On Fri, Sep 18, 2015 at 05:53:22PM +0300, Roger Quadros wrote:
> >> We do a couple of things in this series which result in
> >> cleaner device tree implementation, faster perfomance
when a LS or FS device doesn't connect though a HS hub,
the @bPkts field of its periodic endpoint context should
be set to 1.
Signed-off-by: Chunfeng Yun
---
drivers/usb/host/xhci-mtk-sch.c | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git
The Qualcomm Technologies HIDMA device has been designed
to support virtualization technology. The driver has been
divided into two to follow the hardware design.
1. HIDMA Management driver
2. HIDMA Channel driver
Each HIDMA HW consists of multiple channels. These channels
share some set of
if a full speed hub connects to a high speed hub which
supports MTT, the MTT field of its slot context will be set
to 1 when xHCI driver setups an xHCI virtual device in
xhci_setup_addressable_virt_dev(); once usb core fetch its
hub descriptor, and need to update the xHC's internal data
structures
The Qualcomm Technologies HIDMA device has been designed to support
virtualization technology. The driver has been divided into two to follow
the hardware design.
1. HIDMA Management driver
2. HIDMA Channel driver
Each HIDMA HW consists of multiple channels. These channels share some set
of
Add debugfs hooks for debugging the execution behavior of the DMA
channel. The debugfs hooks get initialized by the probe function and
uninitialized by the remove function.
A stats file is created in debugfs. The stats file will show the
information about each HIDMA channel as well as each
Creating a QCOM directory for all QCOM DMA source files.
Signed-off-by: Sinan Kaya
Reviewed-by: Andy Gtoss
---
drivers/dma/Kconfig| 11 ++-
drivers/dma/Makefile | 2 +-
drivers/dma/qcom/Kconfig | 8
This patch implements the hardware hooks for the HIDMA channel driver.
The main functions of interest are:
- hidma_ll_init
- hidma_ll_request
- hidma_ll_queue_request
- hidma_ll_hw_start
OS layer calls the hidma_ll_init function during probe to set up the
hardware. At this moment, the number of
This patch adds support for hidma engine. The driver consists of two
logical blocks. The DMA engine interface and the low-level interface.
The hardware only supports memcpy/memset and this driver only support
memcpy interface. HW and driver doesn't support slave interface.
Signed-off-by: Sinan
Brian,
On 03/12/15 10:39, Brian Norris wrote:
> Hi,
>
> On Fri, Sep 18, 2015 at 05:53:22PM +0300, Roger Quadros wrote:
>> Hi,
>>
>> We do a couple of things in this series which result in
>> cleaner device tree implementation, faster perfomance and
>> multi-platform support. As an added bonus we
On Thu, Dec 03, 2015 at 11:27:13AM +0530, Roger Quadros wrote:
> On 03/12/15 09:59, Brian Norris wrote:
> > On Tue, Oct 06, 2015 at 01:35:48PM +0300, Roger Quadros wrote:
> >> arch/arm/mach-omap2/gpmc-nand.c | 5 +-
> >> drivers/memory/omap-gpmc.c | 143
> >>
On 03.12.2015 06:19, Ben Gamari wrote:
> From: Thomas Abraham
>
> With the addition of the new Samsung specific cpu-clock type, the
> arm clock can be represented as a cpu-clock type. Add the CPU clock
> configuration data and instantiate the CPU clock type for Exynos5420.
>
> Changes by
Hi,
On Wednesday 02 December 2015 09:02 PM, Heiko Stübner wrote:
> Hi Kishon,
>
> Am Donnerstag, 19. November 2015, 22:22:21 schrieb Heiko Stuebner:
>> changes in v3:
>> - rebase on top of Julias of_node_put fix
>> - address comments from Kishon Vijay Abraham
>> - position of the devm_action
Hi Ben,
On 02-12-15, 22:19, Ben Gamari wrote:
>
> This patch series adds cpufreq support for the Exynos 5800, 5420, and 5422
> SOCs. In particular, it adds support for operating-points-v2 bindings to the
> arm-big-little cpufreq driver and updates the above-mentioned SOCs'
> devicetrees
> to
On Wed, Dec 02, 2015 at 12:11:55PM -0700, Jason Gunthorpe wrote:
> On Wed, Dec 02, 2015 at 11:27:27AM -0700, Jason Gunthorpe wrote:
>
> > I'm guessing that if the driver probe order is tpm_crb,tpm_tis then
> > things work because tpm_crb will claim the device first? Otherwise
> > tpm_tis claims
Brian,
On 03/12/15 09:59, Brian Norris wrote:
> Hi Roger,
>
> On Tue, Oct 06, 2015 at 01:35:48PM +0300, Roger Quadros wrote:
>> Move NAND specific device tree parsing to NAND driver.
>>
>> The NAND controller node must have a compatible id, register space
>> resource and interrupt resource.
>>
On Wed, Dec 02, 2015 at 11:27:27AM -0700, Jason Gunthorpe wrote:
> On Tue, Dec 01, 2015 at 11:33:51PM +0200, Jarkko Sakkinen wrote:
> > On Tue, Dec 01, 2015 at 11:58:26AM -0700, Jason Gunthorpe wrote:
>
> > I went through the patches and didn't see anything that would shock me
> > enough not to
2015-12-03 2:20 GMT+03:00 Peter Hurley :
> On 11/18/2015 02:49 PM, Matwey V. Kornilov wrote:
>> 2015-11-18 22:39 GMT+03:00 Matwey V. Kornilov :
>>> 2015-11-18 21:33 GMT+03:00 Peter Hurley :
On 11/17/2015 03:20 AM, Matwey V. Kornilov wrote:
> 2015-11-16 22:18 GMT+03:00 Peter Hurley :
Xiubo Li (2):
regmap: mmio: remove the useless code
regmap: mmio: Add regmap_mmio_get_min_stride
drivers/base/regmap/regmap-mmio.c | 50 +++
1 file changed, 30 insertions(+), 20 deletions(-)
--
1.8.3.1
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To unsubscribe from this list: send the line
Signed-off-by: Xiubo Li
---
drivers/base/regmap/regmap-mmio.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/base/regmap/regmap-mmio.c
b/drivers/base/regmap/regmap-mmio.c
index 426a57e..38d0dc0 100644
--- a/drivers/base/regmap/regmap-mmio.c
+++ b/drivers/base/regmap/regmap-mmio.c
@@
Splite the minimal stride parsing into one signal function.
Signed-off-by: Xiubo Li
---
drivers/base/regmap/regmap-mmio.c | 49 ---
1 file changed, 30 insertions(+), 19 deletions(-)
diff --git a/drivers/base/regmap/regmap-mmio.c
On Wed, 2015-12-02 at 23:38 -0500, David Miller wrote:
> From: Eric Dumazet
> Date: Sun, 29 Nov 2015 19:37:57 -0800
>
> > From: Eric Dumazet
> >
> > This patch addresses multiple problems :
> >
> > UDP/RAW sendmsg() need to get a stable struct ipv6_txoptions
> > while socket is not locked :
On Wed, Dec 02, 2015 at 07:05:27PM -0700, Gang He wrote:
> Hello Pavel,
>
>
>
> >>>
> > On Wed 2015-10-28 14:25:57, Gang He wrote:
> >> When there are errors in the ocfs2 filesystem,
> >> they are usually accompanied by the inode number which caused the error.
> >> This inode number would be
This is the initial commit for the UniPhier clock drivers, including
support for PH1-sLD3, PH1-LD4, PH1-Pro4, PH1-sLD8, PH1-Pro5, and
ProXstream2/PH1-LD6b.
To improve the code maintainability, the driver consists of common
functions (clk-uniphier-core.c) and clock data arrays needed to
support
Hi,
On Fri, Sep 18, 2015 at 05:53:22PM +0300, Roger Quadros wrote:
> Hi,
>
> We do a couple of things in this series which result in
> cleaner device tree implementation, faster perfomance and
> multi-platform support. As an added bonus we get new GPI/Interrupt pins
> for use in the system.
>
>
On 2 December 2015 at 22:56, Moritz Fischer wrote:
> Hi Jassi,
>
> thanks for your feedback.
>
> On Mon, Aug 10, 2015 at 1:05 AM, Jassi Brar wrote:
>> On Wed, Jul 15, 2015 at 6:30 AM, Moritz Fischer
>> wrote:
>>
>>> +
>>> +static void xilinx_mbox_rx_data(struct mbox_chan *chan)
>>> +{
>>> +
On Fri, Sep 18, 2015 at 05:53:26PM +0300, Roger Quadros wrote:
> Deprecate nand register passing via platform data and use
> gpmc_omap_get_nand_ops() instead.
>
> Signed-off-by: Roger Quadros
> ---
> arch/arm/mach-omap2/gpmc-nand.c | 2 --
> drivers/mtd/nand/omap2.c
From: Jarod Wilson
Date: Mon, 30 Nov 2015 17:12:21 -0500
> Don't open-code it.
>
> CC: Solarflare linux maintainers
> CC: Shradha Shah
> CC: net...@vger.kernel.org
> Signed-off-by: Jarod Wilson
Applied, thank you.
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Hi yankejian,
[auto build test ERROR on pm/linux-next]
[also build test ERROR on v4.4-rc3 next-20151202]
url:
https://github.com/0day-ci/linux/commits/yankejian/ACPI-Add-phylib-support-code-for-mdio/20151203-115039
base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
From: Robert Jarzmik
Date: Mon, 30 Nov 2015 22:40:28 +0100
> Convert the dma transfers to be dmaengine based, now pxa has a dmaengine
> slave driver. This makes this driver a bit more PXA agnostic.
>
> The driver was only compile tested. The risk is quite small as no
> current PXA platform I'm
From: ebied...@xmission.com (Eric W. Biederman)
Date: Mon, 30 Nov 2015 15:38:15 -0600
> + if (dev_net(br->dev) == _net)
Please respin this using net_eq() as Hannes pointed out.
Thanks.
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the body of a message to
I couldn't see this patch applied in linux-next branch still.
Regards,
Saurabh
On 24 November 2015 at 21:59, Lee Jones wrote:
> On Mon, 16 Nov 2015, Saurabh Sengar wrote:
>
>> for checking if a property is present or not,
>> use of_property_read_bool instead of of_get_property()
>>
>>
(to be clear, this branch of discussion isn't directly regarding the TI
changes; we can handle any generic handling afterward, as long as we get
the DT binding right now)
On Tue, Oct 27, 2015 at 09:28:32AM +0100, Boris Brezillon wrote:
> On Mon, 26 Oct 2015 13:49:00 -0700
> Brian Norris wrote:
>
Hi yankejian,
[auto build test ERROR on pm/linux-next]
[also build test ERROR on v4.4-rc3 next-20151202]
url:
https://github.com/0day-ci/linux/commits/yankejian/ACPI-Add-phylib-support-code-for-mdio/20151203-115039
base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
There is already a memset clear operation for '*cp', so we can use
alloc_cpumask_var() with __GFP_ZERO instead of zalloc_cpumask_var()
to avoid duplicate clear for systems without CONFIG_CPUMASK_OFFSTACK
set.
Also omit "atomic_set(>count, 0);".
Signed-off-by: Xunlei Pang
---
There is already a memset clear operation for '*cp', so we can use
alloc_cpumask_var() with __GFP_ZERO instead of zalloc_cpumask_var()
to avoid duplicate clear for systems without CONFIG_CPUMASK_OFFSTACK
set.
Also omit "cp->size = 0;".
Signed-off-by: Xunlei Pang
---
kernel/sched/cpudeadline.c
root_domain::rto_mask allocated through alloc_cpumask_var()
contains garbage data with CONFIG_CPUMASK_OFFSTACK set, this
may cause problems. For instance, When doing pull_rt_task(),
it may do useless iterations if rto_mask retains some extra
garbage bits. Worse still, this can violate the isolated
Hi Ben Gamari,
On 3 December 2015 at 02:49, Ben Gamari wrote:
> From: Bartlomiej Zolnierkiewicz
>
> Add cluster regulator support as a preparation to adding
> generic arm_big_little_dt cpufreq_dt driver support for
> ODROID-XU3 board. This allows arm_big_little[_dt] driver
> to set not only
From: Marcelo Ricardo Leitner
Date: Mon, 30 Nov 2015 14:32:54 -0200
> Dmitry Vyukov reported that the user could trigger a kernel warning by
> using a large len value for getsockopt SCTP_GET_LOCAL_ADDRS, as that
> value directly affects the value used as a kmalloc() parameter.
>
> This patch
From: Eric Dumazet
Date: Sun, 29 Nov 2015 19:37:57 -0800
> From: Eric Dumazet
>
> This patch addresses multiple problems :
>
> UDP/RAW sendmsg() need to get a stable struct ipv6_txoptions
> while socket is not locked : Other threads can change np->opt
> concurrently. Dmitry posted a syzkaller
From: Alexei Starovoitov
Date: Sun, 29 Nov 2015 16:59:35 -0800
> From: Alexei Starovoitov
>
> For large map->value_size the user space can trigger memory allocation
> warnings like:
...
> To avoid never succeeding kmalloc with order >= MAX_ORDER check that
> elem->value_size and computed
On Wed, 2015-12-02 at 13:41 -0500, Waiman Long wrote:
> By doing so, the perf profile became:
>
>9.44% 0.00% java [kernel.vmlinux] [k] smp_apic_timer_interrupt
>8.74% 0.01% java [kernel.vmlinux] [k] hrtimer_interrupt
>7.83% 0.03% java [kernel.vmlinux] [k]
Hi Roger,
On Tue, Oct 06, 2015 at 01:35:48PM +0300, Roger Quadros wrote:
> Move NAND specific device tree parsing to NAND driver.
>
> The NAND controller node must have a compatible id, register space
> resource and interrupt resource.
>
> Signed-off-by: Roger Quadros
This one's going to need
> On 11/29/2015 9:29 PM, changbin...@intel.com wrote:
> > From: "Du, Changbin"
> >
> > With the first patch, enable a enabled ep will return -EBUSY.
> > The second patch forbid queuing on disabled ep to avoid panic.
>
>
> The usb_ep->enabled flag was added in 4.4.
>
> It looks like these same
On Tue, Nov 24, 2015 at 10:45:28AM +0900, Joonsoo Kim wrote:
> On Mon, Nov 23, 2015 at 09:26:04AM -0500, Steven Rostedt wrote:
> > On Mon, 23 Nov 2015 17:28:05 +0900
> > Joonsoo Kim wrote:
> >
> > > On Fri, Nov 20, 2015 at 11:42:25AM -0500, Steven Rostedt wrote:
> > > > On Fri, 20 Nov 2015
timer_mutex is required to be initialized only while memory for 'shared'
is allocated and in a similar way it is required to be destroyed only
when memory for 'shared' is freed.
There is no need to do the same every time we start/stop the governor.
Move code to initialize/destroy timer_mutex to
On Wed, 2 Dec 2015 15:36:50 -0800
Dave Hansen wrote:
> On 12/02/2015 02:53 PM, Yang Shi wrote:
> > diff --git a/mm/gup.c b/mm/gup.c
> > index deafa2c..10245a4 100644
> > --- a/mm/gup.c
> > +++ b/mm/gup.c
> > @@ -13,6 +13,9 @@
> > #include
> > #include
> >
> > +#define CREATE_TRACE_POINTS
>
On Thu, Nov 26, 2015 at 10:52:52AM +0900, Joonsoo Kim wrote:
> On Wed, Nov 25, 2015 at 10:04:44AM -0600, Christoph Lameter wrote:
> > > Although vmstat values aren't designed for accuracy, these are already
> > > used by some sensitive places so it is better to be more accurate.
> >
> > The
Until now, COMPACT_CLUSTER_MAX is defined as SWAP_CLUSTER_MAX.
Commit ("mm: increase SWAP_CLUSTER_MAX to batch TLB flushes")
changes SWAP_CLUSTER_MAX from 32 to 256 to improve tlb flush performance
so COMPACT_CLUSTER_MAX is also changed to 256. But, it has
no justification on compaction-side and I
This patch uses is_via_compact_memory() to distinguish compaction
from sysfs or sysctl. And, this patch also reduces indentation
on compaction_defer_reset() by filtering these cases first
before checking watermark.
There is no functional change.
Acked-by: Yaowei Bai
Acked-by: David Rientjes
Currently update_sampling_rate() runs over each online CPU and
cancels/queues timers on all policy->cpus every time. This should be
done just once for any cpu belonging to a policy.
Create a cpumask and keep on clearing it as and when we process
policies, so that we don't have to traverse through
cpufreq governors evaluate load at sampling rate and based on that they
update frequency for a group of CPUs belonging to the same cpufreq
policy.
This is required to be done in a single thread for all policy->cpus, but
because we don't want to wakeup idle CPUs to do just that, we use
deferrable
Pass 'policy' as argument to ->gov_dbs_timer() instead of cdbs and
dbs_data.
Signed-off-by: Viresh Kumar
---
drivers/cpufreq/cpufreq_conservative.c | 6 +++---
drivers/cpufreq/cpufreq_governor.c | 2 +-
drivers/cpufreq/cpufreq_governor.h | 3 +--
drivers/cpufreq/cpufreq_ondemand.c |
We are guaranteed to have works scheduled for policy->cpus, as the
policy isn't stopped yet. And so there is no need to check that again.
Drop it.
Signed-off-by: Viresh Kumar
---
drivers/cpufreq/cpufreq_ondemand.c | 3 ---
1 file changed, 3 deletions(-)
diff --git
On Wed, 2 Dec 2015 14:53:27 -0800
Yang Shi wrote:
> page-faults events record the invoke to handle_mm_fault, but the invoke
> may come from do_page_fault or gup. In some use cases, the finer event count
> mey be needed, so add trace events support for:
>
> __get_user_pages
>
We are comparing policy->governor against cpufreq_gov_ondemand to make
sure that we update sampling rate only for the concerned CPUs. But that
isn't enough.
In case of governor_per_policy, there can be multiple instances of
ondemand governor and we will always end up updating all of them with
> >> [0.00] tsc: PIT calibration matches HPET. 2 loops
> >> [0.00] tsc: Detected 2399.975 MHz processor
> >> [0.090897] TSC deadline timer enabled
> >> [1.960034] tsc: Refined TSC clocksource calibration: 2400.007 MHz
> turbostat version 4.10 10 Dec, 2015 - Len Brown
>
add dts files for hi3519-demb board
Signed-off-by: Jiancheng Xue
---
arch/arm/boot/dts/Makefile| 2 +
arch/arm/boot/dts/hi3519-demb.dts | 55
arch/arm/boot/dts/hi3519.dtsi | 129 ++
3 files changed, 186 insertions(+)
create
On 2015/12/3 0:17, Namhyung Kim wrote:
On Wed, Dec 02, 2015 at 12:51:33PM +, Wang Nan wrote:
With following steps:
Step 1: perf report
Step 2: Use UP/DOWN to select an entry, don't press 'ENTER'
Step 3: Use '/' to filter symbols, use a filter which returns
empty result
On 2015/11/3 5:33, ja...@microsoft.com wrote:
> From: Jake Oshins
>
> This patch introduces a new driver which exposes a root PCI bus whenever a PCI
> Express device is passed through to a guest VM under Hyper-V. The device can
> be single- or multi-function. The interrupts for the devices are
If feed perf a symbol filter in cmdline and the result is empty,
pressing 'Enter' in the hist browser causes crash:
# ./perf report perf.data <-- Common mistake for beginners
Then press 'Enter':
perf: Segmentation fault
backtrace
/home/wangnan/perf[0x53e578]
Before this patch we can trigger a segfault by following steps:
Step 0: Use 'perf record' to generate a perf.data without callchain
Step 1: perf report
Step 2: Use UP/DOWN to select an entry, don't press 'ENTER'
Step 3: Use '/' to filter symbols, use a filter which returns
empty
When using symbol filter in hists browser, some unusal operations
causes segfault. This patchset avoid those crashes.
Cc: Arnaldo Carvalho de Melo
Cc: Namhyung Kim
Wang Nan (3):
perf hists browser: Fix segfault if use symbol filter in cmdline
perf hists browser: Add NULL pointer check to
With following steps:
Step 1: perf report
Step 2: Use UP/DOWN to select an entry, don't press 'ENTER'
Step 3: Use '/' to filter symbols, use a filter which returns
empty result
Step 4: Press 'ENTER'
We see that, even if we have filter all symbols (and the main interface
is
Rename ARCH_HI3xxx to ARCH_HI36xx.
Signed-off-by: Jiancheng Xue
---
drivers/dma/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index e6cd1a3..53d5676 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -279,7
ARCH_HI3xxx just represents hi36xx soc family.
Signed-off-by: Jiancheng Xue
---
arch/arm/Kconfig.debug | 4 ++--
arch/arm/boot/dts/Makefile | 2 +-
arch/arm/configs/hisi_defconfig | 2 +-
arch/arm/configs/multi_v7_defconfig | 2 +-
arch/arm/mach-hisi/Kconfig |
Rename ARCH_HI3xxx to ARCH_HI36xx.
Signed-off-by: Jiancheng Xue
---
drivers/clk/hisilicon/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index 9a601c0..5a1c195 100644
---
Add the support of Hisilicon Hi3519 debug uart.
Signed-off-by: Jiancheng Xue
---
arch/arm/Kconfig.debug | 10 ++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 259c0ca..4d2ae2a 100644
--- a/arch/arm/Kconfig.debug
+++
Hi3519 SOC is mainly used for ip camera and sport dv
solutions.
Signed-off-by: Jiancheng Xue
---
arch/arm/mach-hisi/Kconfig | 9 +
arch/arm/mach-hisi/hisilicon.c | 9 +
2 files changed, 18 insertions(+)
diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig
enable ARCH_HI3519 in hisi_defconfig
Signed-off-by: Jiancheng Xue
---
arch/arm/configs/hisi_defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/configs/hisi_defconfig b/arch/arm/configs/hisi_defconfig
index b2e340b..321d020 100644
--- a/arch/arm/configs/hisi_defconfig
+++
On 3 December 2015 at 03:56, Alasdair G Kergon wrote:
> On Wed, Dec 02, 2015 at 08:46:54PM +0800, Baolin Wang wrote:
>> These are the benchmarks for request based dm-crypt. Please check it.
>
> Now please put request-based dm-crypt completely to one side and focus
> just on the existing bio-based
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