Here's v2.1 with comments fixed. I still need to run it through the
boxes to see what breaks, thus the RFC.
---
From: Borislav Petkov
Date: Sun, 18 Oct 2015 16:05:32 +0200
Subject: [RFC PATCH -v2.1] x86: Kill notsc
Kill "notsc" cmdline option and all the glue around it. The two boxes
worldwide w
On Sun, Nov 15, 2015 at 08:33:11PM +0100, Oleg Nesterov wrote:
> stop_one_cpu_nowait(fn) will crash the kernel if the callback returns
> nonzero, work->done == NULL in this case.
>
> This needs more cleanups, cpu_stop_signal_done() is called right after
> we check done != NULL and it does the same
On Mon, Nov 16, 2015 at 10:18 AM,
=?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= wrote:
> 2015-11-16 19:59+0200, Michael S. Tsirkin:
>> On Mon, Nov 16, 2015 at 06:51:06PM +0100,
>> =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= wrote:
>>> 2015-11-15 18:00+0200, Michael S. Tsirkin:
>>> (And I think that ept
On Sun, Nov 15, 2015 at 04:54:57PM +0300, Vladimir Davydov wrote:
> On Thu, Nov 12, 2015 at 06:41:33PM -0500, Johannes Weiner wrote:
> > Let the networking stack know when a memcg is under reclaim pressure
> > so that it can clamp its transmit windows accordingly.
> >
> > Whenever the reclaim effi
On Mon, Nov 16, 2015 at 7:20 PM, Russell King - ARM Linux
wrote:
> On Mon, Nov 16, 2015 at 05:49:23PM +0100, Arnd Bergmann wrote:
>> It turns out that the commit that introduced this used the cpu_to_le32()
>> incorrectly on an 8-bit field, which results in the sense_len to always
>> be set to zero
On Mon, Nov 16, 2015 at 10:38 AM, Jerry Hoemann wrote:
>
> The NVDIMM code in the kernel supports an IOCTL interface to user
> space based upon the Intel Example DSM:
>
> http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf
>
> This interface cannot be used by other NVDIMM DSMs that s
2015-11-09 10:46+0800, Feng Wu:
> Use vector-hashing to handle lowest-priority interrupts for
> posted-interrupts. As an example, modern Intel CPUs use this
> method to handle lowest-priority interrupts.
(I don't think it's a good idea that the algorithm differs from non-PI
lowest priority delive
Em Mon, Nov 16, 2015 at 12:10:09PM +, Wang Nan escreveu:
> This patch is a preparation for BPF prologue support which allows
> generating a series of BPF bytecode for fetching kernel data before
> calling program code. With the newly introduced multiple instances
> support, perf is able to crea
> -Original Message-
> From: linux-rdma-ow...@vger.kernel.org
> [mailto:linux-rdma-ow...@vger.kernel.org] On Behalf Of Sagi Grimberg
> Sent: Monday, November 16, 2015 12:38 PM
> To: Steve Wise; 'Christoph Hellwig'; linux-r...@vger.kernel.org
> Cc: bart.vanass...@sandisk.com; ax...@fb.com
On Mon, Nov 16, 2015 at 8:25 AM, Boris Ostrovsky
wrote:
> On 11/15/2015 01:02 PM, Andy Lutomirski wrote:
>>
>> On Nov 13, 2015 5:23 PM, "Boris Ostrovsky"
>> wrote:
>>>
>>>
>>>
>>> On 11/13/2015 06:26 PM, Andy Lutomirski wrote:
On Fri, Nov 13, 2015 at 3:18 PM, Boris Ostrovsky
wrote
On Sun, Nov 15, 2015 at 08:33:32PM +0100, Oleg Nesterov wrote:
> 1. Change this code to use preempt_count_inc/preempt_count_dec; this way
>it works even if CONFIG_PREEMPT_COUNT=n, and we avoid the unnecessary
>__preempt_schedule() check (stop_sched_class is not preemptible).
>
>And thi
On Nov 13, 2015 7:26 AM, "Frederic Weisbecker" wrote:
>
> On Thu, Nov 12, 2015 at 12:59:04PM -0800, Andy Lutomirski wrote:
> > On CONFIG_CONTEXT_TRACKING kernels that have context tracking
> > disabled at runtime (which includes most distro kernels), we still
> > have the overhead of a call to ent
hi,
Doug Anderson writes:
> Felipe,
>
> On Mon, Nov 16, 2015 at 10:22 AM, Felipe Balbi wrote:
>>> I added "force" in v2 of the patch in response to John's feedback to
>>> v1. He pointed out that when you unload the module when you have a
>>> device connected that my v1 patch would not properly
Le 16/11/2015 19:33, Brian Norris a écrit :
> On Thu, Nov 12, 2015 at 09:19:09AM +0100, Uwe Kleine-König wrote:
>> I really wonder there is no helper
>> function like:
>>
>> #define of_sensible_name(dev)
>> of_match_device(dev->driver->of_match_table, dev)
>
> How about of_device_get_match
Add device tree binding for the BCM6345 interrupt controller.
This controller is similar to the SMP-capable BCM7038 and
the BCM3380 but with packed interrupt registers.
Signed-off-by: Simon Arlott
---
On 16/11/15 15:34, Rob Herring wrote:
> On Sun, Nov 15, 2015 at 04:51:16PM +, Simon Arlott
Now that the kernel uses EOImode==1 for the GIC, this uncovers a
number of cases where the active state is not correctly handled:
- When doing kexec, we directly call the irq_eoi() method, which may
violate ordering constraints, or leave interrupts active.
- When booting, we don't reset the acti
machine_kexec_mask_interrupts iterates over the system interrupts
and tries to mask all interrupts, including those that are currently
being handled.
The current method includes finding out if an interrupt is in progress,
and call the EOI method if that's the case. This methods has a few
issues wh
When using EOImode==1, we may mark interrupts as being forwarded
to a virtual machine. In that case, the interrupt is left active
while being passed to the VM.
If we suspend the system before the VM has deactivated the interrupt,
the active state will be lost (which may be very annoying, as this
m
When restoring the GIC state (after a suspend/resume cycle,
for example), the driver directly writes the 'enabled' state
it has saved by accessing GICD_ISENABLERn, which performs
an OR operation between the value present in the register
and the value we write.
If whatever code that has run before
When booting a GIC/GICv3 based system, we have no idea what
state the firmware (or previous kernel in the case of kexec)
has left the GIC, and some interrupts may still be active.
In order to garantee that we have a clean state, make sure
the active bits are cleared at init time.
Signed-off-by: M
The TS-4800, based on an IMX.515, needs its watchdog support in order to
work.
Signed-off-by: Damien Riegel
---
arch/arm/configs/imx_v6_v7_defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/configs/imx_v6_v7_defconfig
b/arch/arm/configs/imx_v6_v7_defconfig
index 79194c6..896
Signed-off-by: Damien Riegel
Acked-by: Lee Jones
---
Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt
b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 82d2ac9..0a70537 100
This patch serie adds support for TS-4800 board. This board,
manufactured by Technologic Systems, is based on an IMX515.
The first stage bootloader, called TS-BOOTROM, enables the watchdog,
so a watchdog driver is requi
From: "Jason A. Donenfeld"
Date: Thu, 12 Nov 2015 17:35:58 +0100
> Drivers like vxlan use the recently introduced
> udp_tunnel_xmit_skb/udp_tunnel6_xmit_skb APIs. udp_tunnel6_xmit_skb
> makes use of ip6tunnel_xmit, and ip6tunnel_xmit, after sending the
> packet, updates the struct stats using the
This device tree adds support for TS-4800 by Technologic Systems. This
board is based on MX51-babbage, but there are some subtle differences in
the pins used, and there is an additional FPGA that is memory-mapped.
More details here:
http://wiki.embeddedarm.com/wiki/TS-4800
Signed-off-by: Damien
This watchdog is instantiated in a FPGA that is memory mapped. It is
made of only one register, called the feed register. Writing to this
register will re-arm the watchdog for a given time (and enable it if it
was disable). It can be disabled by writing a special value into it.
It is part of a sys
Currently syscon has a fixed configuration of 32 bits for register and
values widths. In some cases, it would be desirable to be able to
customize the value width.
For example, certain boards (like the ones manufactured by Technologic
Systems) have a FPGA that is memory-mapped, but its registers a
On 11/14/2015 10:25 AM, One Thousand Gnomes wrote:
>> I specifically asked for it.
>>
>> I can think of 2 reasons that userspace wants to know:
>> 1. Because the characteristics of the software emulation are unacceptable so
>>the application wants to terminate w/error rather than continue.
>
>
From: Mans Rullgard
Date: Thu, 12 Nov 2015 17:40:20 +
> Commit 77a993942 "phy/at8031: enable at8031 to work on interrupt mode"
> added interrupt support for the 8031 PHY but left out the other two
> chips supported by this driver.
>
> This patch sets the .ack_interrupt and .config_intr funct
Le 16/11/2015 18:07, Felipe Balbi a écrit :
>
> Hi,
>
> LABBE Corentin writes:
>> of_match_device could return NULL, and so cause a NULL pointer
>> dereference later. Renaming id to of_id (like all others do) in the
>> process.
>>
>> Reported-by: coverity (CID 1324133)
>> Signed-off-by: LABBE Co
From: Mans Rullgard
Date: Thu, 12 Nov 2015 18:41:12 +
> This adds support for the Vitesse VSC8601 PHY. Generic functions are
> used for everything except interrupt handling.
>
> Signed-off-by: Mans Rullgard
Applied.
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To unsubscribe from this list: send the line "unsubscribe linux-kernel"
I will continue maintaining Linux 3.2 as part of the Debian LTS
team, which is supporting Debian 7 on x86 until May 2018.
---
content/releases.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/content/releases.rst b/content/releases.rst
index d5dc139..cc4ea10 100644
--- a/con
On Mon, Nov 9, 2015 at 10:05 AM, Duc Dang wrote:
> APM X-Gene SoC has a mailbox controller that provides
> communication mechanism for X-Gene Arm64 cores to communicate
> with X-Gene SoC's Cortex M3 (SLIMpro) processor.
>
> X-Gene mailbox controller provides 8 mailbox channels, with
> each channel
Hi,
(you need to break your lines at 80 characters)
Corentin LABBE writes:
> Le 16/11/2015 18:07, Felipe Balbi a écrit :
>>
>> Hi,
>>
>> LABBE Corentin writes:
>>> of_match_device could return NULL, and so cause a NULL pointer
>>> dereference later. Renaming id to of_id (like all others do)
Hi Javier,
On Mon, Nov 16, 2015 at 02:19:27PM -0300, Javier Martinez Canillas wrote:
> On 11/13/2015 08:48 PM, Brian Norris wrote:
> > On Fri, Nov 13, 2015 at 11:14:10PM +, Mark Brown wrote:
> >> On Fri, Nov 13, 2015 at 02:51:13PM -0800, Brian Norris wrote:
> Documentation/devicetree/bindings
On Mon, 16 Nov 2015 18:42:38 +
Mark Brown wrote:
> On Mon, Nov 16, 2015 at 01:23:59PM +0100, Boris Brezillon wrote:
> > Mark Brown wrote:
> > > On Mon, Nov 16, 2015 at 09:56:32AM +0100, Boris Brezillon wrote:
>
> > > > - pwm_reg_period = pwm_get_period(drvdata->pwm);
> > > > + p
The dynamic power consumption of a device is proportional to the
square of voltage (V) and the clock frequency (f). It can be expressed as
Pdyn = dynamic-power-coefficient * V^2 * f.
The coefficient represents the running time dynamic power consumption in
units of mw/MHz/uVolt^2 and can be used i
Support registering cooling devices with dynamic power coefficient
where provided by the device tree. This allows OF registered cooling
devices driver to be used with the power_allocator thermal governor.
Signed-off-by: Punit Agrawal
Acked-by: Viresh Kumar
Reviewed-by: Javi Merino
Cc: Eduardo V
Hi,
This patchset adds support to build a single-coefficient dynamic power
model for a CPU. The model is used by the CPU cooling device to
provide an estimate of power consumption and also translate allocated
power to performance cap.
Changes from previous posting -
v3 -> v4:
arm_big_little: Mig
Register passive cooling devices when initialising cpufreq on
big.LITTLE systems. If the device tree provides a dynamic power
coefficient for the CPUs then the bound cooling device will support
the extensions that allow it to be used with all the existing thermal
governors including the power alloc
On Mon, Nov 16, 2015 at 8:17 PM, David Miller wrote:
> So another fix could have been to do local_bh_disable() in the
> udp_tunnel6_xmit_skb() helper.
This would have fixed one problem, but everywhere
udp_tunnel_xmit_skb() (4, not 6) is called, iptunnel_xmit_stats is
called right after it, so the
Guenter Roeck writes:
> On Wed, Oct 28, 2015 at 05:17:31PM +, Sudeep Holla wrote:
>> Currently it's assumed that firmware exports only the class of sensors
>> supported by the driver. However with newer firmware or SCPI protocol
>> revision, support for newer classes of sensors can be present
On Mon, 16 Nov 2015, Doug Anderson wrote:
> ---
>
> usb: dwc2: host: Fix missing device insertions
>
> If you've got your interrupt signals bouncing a bit as you insert your
> USB device, you might end up in a state when the device is connected but
> the driver doesn't know it.
>
> Specifically
From: Yang Shi
Date: Thu, 12 Nov 2015 13:57:00 -0800
> BPF fp should point to the top of the BPF prog stack. The original
> implementation made it point to the bottom incorrectly.
> Move A64_SP to fp before reserve BPF prog stack space.
>
> CC: Zi Shen Lim
> CC: Xi Wang
> Signed-off-by: Yang S
From: Yang Shi
Date: Thu, 12 Nov 2015 14:07:46 -0800
> commit 338d4f49d6f7114a017d294ccf7374df4f998edc
> ("arm64: kernel: Add support for Privileged Access Never") includes sysreg.h
> into futex.h and uaccess.h. But, the inline assembly used by asm/sysreg.h is
> incompatible with llvm so it will
On 16/11/15 12:56, Jonas Gorski wrote:
> On Sun, Nov 15, 2015 at 5:53 PM, Simon Arlott wrote:
>> Add the BCM63168 interrupt controller based on the SMP-capable BCM7038
>> and the BCM3380 but with packed interrupt registers.
>>
>> Add the BCM63168 interrupt controller to a list with the existing BC
From: Pavel Fedin
Date: Fri, 13 Nov 2015 09:46:59 +0300
> On certain hardware after software reboot the chip may get stuck and fail
> to reinitialize during reset. This can be fixed by ensuring that PHY is
> reset too.
>
> Old PHY resetting method required operational MDIO interface, therefore
>
Alan,
On Mon, Nov 16, 2015 at 11:31 AM, Alan Stern wrote:
> On Mon, 16 Nov 2015, Doug Anderson wrote:
>
>> ---
>>
>> usb: dwc2: host: Fix missing device insertions
>>
>> If you've got your interrupt signals bouncing a bit as you insert your
>> USB device, you might end up in a state when the devi
Hi Brian,
[auto build test WARNING on mtd/master]
[also build test WARNING on v4.4-rc1 next-20151116]
url:
https://github.com/0day-ci/linux/commits/Brian-Norris/mtd-fsl-quadspi-possible-NULL-reference/20151117-024430
base: git://git.infradead.org/linux-mtd.git master
config: i386
On 11/13/2015 6:39 PM, Z Lim wrote:
Yang, I noticed another thing...
On Fri, Nov 13, 2015 at 10:09 AM, Yang Shi wrote:
Save and restore FP/LR in BPF prog prologue and epilogue, save SP to FP
in prologue in order to get the correct stack backtrace.
However, ARM64 JIT used FP (x29) as eBPF fp r
On Mon, Nov 16, 2015 at 09:28:59AM -0800, Dan Williams wrote:
> On Mon, Nov 16, 2015 at 6:05 AM, Jan Kara wrote:
> > On Mon 16-11-15 14:37:14, Jan Kara wrote:
> [..]
> > But a question: Won't it be better to do sfence + pcommit only in response
> > to REQ_FLUSH request and don't do it after each w
From: Aditya Kali
CLONE_NEWCGROUP will be used to create new cgroup namespace.
Signed-off-by: Aditya Kali
Acked-by: Serge Hallyn
---
include/uapi/linux/sched.h |3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h
inde
From: Aditya Kali
move cgroup_get() and cgroup_put() into cgroup.h so that
they can be called from other places.
Signed-off-by: Aditya Kali
Acked-by: Serge Hallyn
---
include/linux/cgroup.h | 21 +
kernel/cgroup.c| 22 --
2 files changed, 21
Hi David & Folks,
I have a virtual device driver that does some fancy processing of
packets in ndo_start_xmit before forwarding them onward out of a
tunnel elsewhere. In order to make that fancy processing fast, I have
AVX and AVX2 implementations. This means I need to use the FPU.
So, I do the u
From: Aditya Kali
Signed-off-by: Aditya Kali
Signed-off-by: Serge Hallyn
---
Documentation/cgroups/namespace.txt | 142 +++
1 file changed, 142 insertions(+)
create mode 100644 Documentation/cgroups/namespace.txt
diff --git a/Documentation/cgroups/namespace.t
From: Aditya Kali
This patch enables cgroup mounting inside userns when a process
as appropriate privileges. The cgroup filesystem mounted is
rooted at the cgroupns-root. Thus, in a container-setup, only
the hierarchy under the cgroupns-root is exposed inside the container.
This allows container
From: Aditya Kali
get_task_cgroup() returns the (reference counted) cgroup of the
given task.
Signed-off-by: Aditya Kali
Acked-by: Serge Hallyn
---
include/linux/cgroup.h |1 +
kernel/cgroup.c| 25 +
2 files changed, 26 insertions(+)
diff --git a/include
Hi,
following is a revised set of the CGroup Namespace patchset which Aditya
Kali has previously sent. The code can also be found in the cgroupns.v4
branch of
https://git.kernel.org/cgit/linux/kernel/git/sergeh/linux-security.git/
To summarize the semantics:
1. CLONE_NEWCGROUP re-uses 0x02
From: Aditya Kali
The new function kernfs_path_from_node() generates and returns
kernfs path of a given kernfs_node relative to a given parent
kernfs_node.
Signed-off-by: Aditya Kali
Acked-by: Serge E. Hallyn
---
fs/kernfs/dir.c| 195 ++--
From: Aditya Kali
setns on a cgroup namespace is allowed only if
task has CAP_SYS_ADMIN in its current user-namespace and
over the user-namespace associated with target cgroupns.
No implicit cgroup changes happen with attaching to another
cgroupns. It is expected that the somone moves the attachi
From: Aditya Kali
Introduce the ability to create new cgroup namespace. The newly created
cgroup namespace remembers the cgroup of the process at the point
of creation of the cgroup namespace (referred as cgroupns-root).
The main purpose of cgroup namespace is to virtualize the contents
of /proc/
commit 5ac48378414d ("tracing: Use trace_seq_used() and seq_buf_used()
instead of len") changed the tracing code to use trace_seq_used() and
seq_buf_used() instead of using the seq_buf len directly to avoid
overflow issues, but missed a spot in seq_buf_to_user() that makes use
of s->len.
Cleaned u
On Monday 16 November 2015 18:39:41 Catalin Marinas wrote:
> On Mon, Nov 16, 2015 at 05:25:48PM +0100, Arnd Bergmann wrote:
> > Including linux/acpi.h from asm/dma-mapping.h causes tons of compile-time
> > warnings, e.g.
> >
> > drivers/isdn/mISDN/dsp_ecdis.h:43:0: warning: "FALSE" redefined
> >
From: Daniele Palmas
Date: Fri, 13 Nov 2015 18:01:21 +0100
> Since Dell DW5580 is a 3G modem, this patch adds the device as a
> mobile broadband adapter
>
> Signed-off-by: Daniele Palmas
Applied.
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To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a messag
On Mon, Nov 16, 2015 at 11:03:22AM -0800, Andy Lutomirski wrote:
> ...
> The reader surely doesn't remember that this isn't guaranteed to be a
> swapgs instruction on native. Using:
>
> ALTERNATIVE "swapgs" "" X86_FEATURE_XENPV
>
> would be safer (it would get rid of the SWAPGS_UNSAFE_STACK mes
Certain Toshiba models with the second generation keyboard backlight
(type 2) do not generate the keyboard backlight changed event (0x92),
and thus, the sysfs entries are never being updated.
This patch adds a workquee and a global boolean variable to address
the issue.
For those models that do g
Hello Brian,
On 11/16/2015 04:24 PM, Brian Norris wrote:
> Hi Javier,
>
> On Mon, Nov 16, 2015 at 02:19:27PM -0300, Javier Martinez Canillas wrote:
>> On 11/13/2015 08:48 PM, Brian Norris wrote:
>>> On Fri, Nov 13, 2015 at 11:14:10PM +, Mark Brown wrote:
On Fri, Nov 13, 2015 at 02:51:13P
On Mon, Nov 16, 2015 at 08:58:11AM -0800, Dan Williams wrote:
> On Mon, Nov 16, 2015 at 6:41 AM, Jan Kara wrote:
> > On Fri 13-11-15 17:06:39, Ross Zwisler wrote:
> >> This patch series adds support for fsync/msync to DAX.
> >>
> >> Patches 1 through 7 add various utilities that the DAX code will
From: Shrikrishna Khare
Date: Fri, 13 Nov 2015 15:42:10 -0800
> Signed-off-by: Shrikrishna Khare
> Reported-by: Masao Uebayashi
> Signed-off-by: Bhavesh Davda
You guys really have to stop targetting simple, straightforward,
bug fixes at net-next. That is not appropriate.
Bug fixes should ta
From: Julia Lawall
Date: Sat, 14 Nov 2015 11:06:57 +0100
> This pci_error_handlers structure is never modified, like all the other
> pci_error_handlers structures, so declare it as const.
>
> Done with the help of Coccinelle.
>
> Signed-off-by: Julia Lawall
Applied.
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To unsubscribe from thi
From: Julia Lawall
Date: Sat, 14 Nov 2015 11:06:53 +0100
> This pci_error_handlers structure is never modified, like all the other
> pci_error_handlers structures, so declare it as const.
>
> Done with the help of Coccinelle.
>
> Signed-off-by: Julia Lawall
Applied.
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To unsubscribe from thi
From: Ben Cartwright-Cox
Date: Sat, 14 Nov 2015 15:13:58 +
> Sending ICMP packets with raw sockets ends up in the SNMP counters
> logging the type as the first byte of the IPv4 header rather than
> the ICMP header. This is fixed by adding the IP Header Length to
> the casting into a icmphdr s
On Fri, Nov 13, 2015 at 06:32:40PM -0800, Dan Williams wrote:
> On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote:
> > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote:
> >>
> >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler
> >> wrote:
> >>> Currently the PMEM driver doesn't accept REQ_FLUSH
On Mon, Nov 16, 2015 at 11:59 AM, Borislav Petkov wrote:
> On Mon, Nov 16, 2015 at 11:03:22AM -0800, Andy Lutomirski wrote:
>
>> ...
>> The reader surely doesn't remember that this isn't guaranteed to be a
>> swapgs instruction on native. Using:
>>
>> ALTERNATIVE "swapgs" "" X86_FEATURE_XENPV
>>
I'm starting to grow quite weary of these "unnecessary check" changes.
Sometimes it is better to have them, either because the path is a hot
path or some atomic sequence is involved.
But there is never harm in them being there.
All of this is a matter of taste, of course. But one thing I know
Hi folks,
A few tunnel devices, like geneve or vxlan, are using
udp_tunnel_xmit_skb, or related functions for transmitting packets,
and are doing the usual FIB lookup to get the dst entry. I see a lot
of code like this:
if (rt->dst.dev == dev) {
netdev_dbg(
Jan Kara writes:
> Currently blk_insert_flush() just adds flush request to q->queue_head
> when flush is not required. That completely bypasses IO scheduler so
> e.g. CFQ can be idling waiting for new request to arrive and will idle
> through the whole window unnecessarily. Luckily this only happ
On Sat, 14 Nov 2015, Matt Fleming wrote:
> The x86 pageattr code is confused about the data that is stored
> cpa->pfn, sometimes it's treated as a page frame number, sometimes
> it's treated as an unshifted physical address, and in one place it's
> treated as a pte.
Yuck.
> The result of this is
Hi Julia,
Thank you for the patch.
On Friday 13 November 2015 23:05:17 Julia Lawall wrote:
> These v4l2_ctrl_ops structures are never modified, like all the other
> v4l2_ctrl_ops structures, so declare them as const.
>
> Done with the help of Coccinelle.
>
> Signed-off-by: Julia Lawall
Acked-
Dear Hugh,
[ sorry, I just noticed this email now ]
On Wed, Oct 21, 2015 at 01:05:53PM -0700, Hugh Dickins wrote:
> On Wed, 21 Oct 2015, Johannes Weiner wrote:
> > On Mon, Oct 19, 2015 at 02:13:01PM -0400, Johannes Weiner wrote:
> > > mm-increase-swap_cluster_max-to-batch-tlb-flushes.patch change
On Mon, Nov 16, 2015 at 12:11:11PM -0800, Andy Lutomirski wrote:
> On Mon, Nov 16, 2015 at 11:59 AM, Borislav Petkov wrote:
> > On Mon, Nov 16, 2015 at 11:03:22AM -0800, Andy Lutomirski wrote:
> >
> >> ...
> >> The reader surely doesn't remember that this isn't guaranteed to be a
> >> swapgs instr
When ensuring a consistent initial LED state in bcm6328_led (as they may
be blinking instead of on/off), the LED register is set using an inverted
copy of bcm6328_led_set(). To avoid further errors relating to active low
handling, call this function directly instead.
As bcm6328_led_set() acquires
Another point to note, which I think is what prevents the flow Alan
suggested from working, is this little snippet in DWC2's hub_control
GetPortStatus callback:
if (!hsotg->flags.b.port_connect_status) {
/*
* The port is disconnected
On Mon, 16 Nov 2015, Doug Anderson wrote:
> Alan,
>
> On Mon, Nov 16, 2015 at 11:31 AM, Alan Stern
> wrote:
> > On Mon, 16 Nov 2015, Doug Anderson wrote:
> >
> >> ---
> >>
> >> usb: dwc2: host: Fix missing device insertions
> >>
> >> If you've got your interrupt signals bouncing a bit as you in
On 11/16/2015 02:03 PM, Andy Lutomirski wrote:
It's still a waste of effort, though. Also, I'd eventually like the
number of places in Xen code in which rsp/esp is invalid to be exactly
zero, and this approach makes this harder or even impossible.
That's what PVH is going to do.
Does PVH h
From: "Jason A. Donenfeld"
Date: Mon, 16 Nov 2015 20:52:28 +0100
> This works fine with, say, iperf3 in TCP mode. The AVX performance
> is great. However, when using iperf3 in UDP mode, irq_fpu_usable()
> is mostly false! I added a dump_stack() call to see why, except
> nothing looks strange; the
When a long value is read on 32 bit machines for 64 bit output, the parsing
needs to change "%lu" into "%llu", as the value is read natively.
Unfortunately, if "%llu" is already there, the code will add another "l" to
it and fail to parse it properly.
Cc: sta...@vger.kernel.org
Signed-off-by: St
On Mon, Nov 16, 2015 at 11:48 AM, Ross Zwisler
wrote:
> On Mon, Nov 16, 2015 at 09:28:59AM -0800, Dan Williams wrote:
>> On Mon, Nov 16, 2015 at 6:05 AM, Jan Kara wrote:
>> > On Mon 16-11-15 14:37:14, Jan Kara wrote:
[..]
> Is there any reason why this wouldn't work or wouldn't be a good idea?
W
On (11/16/15 21:14), Jason A. Donenfeld wrote:
>
> But what about in devices for which self-routing might actually be
> useful? For example, let's say that if an incoming skb is headed for
> dst X, it gets encapsulated and sent to dst A, and for dst Y it gets
> encapsulated and sent to dst B, and
On Mon, 16 Nov 2015, Julius Werner wrote:
> Another point to note, which I think is what prevents the flow Alan
> suggested from working, is this little snippet in DWC2's hub_control
> GetPortStatus callback:
>
> if (!hsotg->flags.b.port_connect_status) {
>
On Mon, Nov 16, 2015 at 09:04:02AM +0100, Takashi Iwai wrote:
> On Sun, 15 Nov 2015 14:54:28 +0100,
> Clemens Ladisch wrote:
> >
> > Cheah Kok Cheong wrote:
> > > Commit 939f325f4a0f ("usb: add usb_endpoint_maxp() macro")
> > >
> > > And commit 29cc88979a88 ("USB: use usb_endpoint_maxp()
> > > ins
Serge,
On Mon, Nov 16, 2015 at 8:51 PM, wrote:
> To summarize the semantics:
>
> 1. CLONE_NEWCGROUP re-uses 0x0200, which was previously CLONE_STOPPED
>
> 2. unsharing a cgroup namespace makes all your current cgroups your new
> cgroup root.
>
> 3. /proc/pid/cgroup always shows cgroup paths
On Mon, Nov 16, 2015 at 09:41:15PM +0100, Richard Weinberger wrote:
> Serge,
>
> On Mon, Nov 16, 2015 at 8:51 PM, wrote:
> > To summarize the semantics:
> >
> > 1. CLONE_NEWCGROUP re-uses 0x0200, which was previously CLONE_STOPPED
> >
> > 2. unsharing a cgroup namespace makes all your curren
> To handle things smarter, I think I need to research how to deal with
> hubs attached to hubs attached to hubs. For instance:
>
> dwc2
> -> multi_tt hub
> -> single_tt hub
> -> device 1
> -> device 2
Keep in mind that there's always at most one (active) TT between host
and d
Hi,
On Mon, Nov 16, 2015 at 05:00:43PM -0300, Javier Martinez Canillas wrote:
> On 11/16/2015 04:24 PM, Brian Norris wrote:
> I also didn't think about wilcards... I wonder why there are trailing
> wildcards for a compatible string. After all a compatible string should
> define a particular IP an
On 11/16/2015 03:22 PM, Borislav Petkov wrote:
On Mon, Nov 16, 2015 at 12:11:11PM -0800, Andy Lutomirski wrote:
Are there really multiple feature bits for this stuff? I'd like to
imagine that the entry code is all either Xen PV or native/PVH/PVHVM
-- i.e. I assumed that PVH works like native f
On Mon, Nov 16, 2015 at 12:48 PM, Boris Ostrovsky
wrote:
> On 11/16/2015 03:22 PM, Borislav Petkov wrote:
>>
>> On Mon, Nov 16, 2015 at 12:11:11PM -0800, Andy Lutomirski wrote:
>>
>>> Are there really multiple feature bits for this stuff? I'd like to
>>> imagine that the entry code is all either
Am 16.11.2015 um 21:46 schrieb Serge E. Hallyn:
> On Mon, Nov 16, 2015 at 09:41:15PM +0100, Richard Weinberger wrote:
>> Serge,
>>
>> On Mon, Nov 16, 2015 at 8:51 PM, wrote:
>>> To summarize the semantics:
>>>
>>> 1. CLONE_NEWCGROUP re-uses 0x0200, which was previously CLONE_STOPPED
>>>
>>> 2
[CCing Cyril]
On Mon 16-11-15 18:36:19, Piotr Kwapulinski wrote:
> When a new virtual memory area is added to the process's virtual address
> space and this vma causes the process's virtual address space limit
> (RLIMIT_AS) to be exceeded then kernel behaves incorrectly. Incorrect
> behavior is a
From: Mans Rullgard
Date: Mon, 16 Nov 2015 18:23:35 +
> +static int nb8800_alloc_rx(struct net_device *dev, int i, bool napi)
"i" is passed in as a signed int here, but:
> +static void nb8800_receive(struct net_device *dev, unsigned i, unsigned len)
...
> + err = nb8800_alloc_r
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