On Mon, Aug 7, 2017 at 3:55 PM, Laura Abbott wrote:
> On 08/07/2017 03:00 PM, Mark Rutland wrote:
>> Hi,
>>
>> On Mon, Aug 07, 2017 at 01:39:48PM -0700, Kees Cook wrote:
>>> Two new tests STACK_GUARD_PAGE_LEADING and STACK_GUARD_PAGE_TRAILING
>>> attempt to read the byte before and after, respecti
Add a new flag MFD_HUGETLB to memfd_create() that will specify the
file to be created resides in the hugetlbfs filesystem. This is
the generic hugetlbfs filesystem not associated with any specific
mount point. As with other system calls that request hugetlbfs
backed pages, there is the ability to
This patch came out of discussions in this e-mail thread [1].
The Oracle JVM team is developing a new garbage collection model. This
new model requires multiple mappings of the same anonymous memory. One
straight forward way to accomplish this is with memfd_create. They can
use the returned fd
Cleans up some incongruous braces
Signed-off-by: Frank Jozsa
---
drivers/staging/pi433/pi433_if.c | 203 +++
1 file changed, 78 insertions(+), 125 deletions(-)
diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index ed737f4b1e77
Cleans up some incongruous braces
Signed-off-by: Frank Jozsa
---
drivers/staging/pi433/pi433_if.c | 203 +++
1 file changed, 78 insertions(+), 125 deletions(-)
diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index ed737f4b1e77
Rename exception handlers to memcpy_xxx as these
are going to be used by new memcpy routines and these
handlers are not exclusive to NG4memcpy anymore.
Signed-off-by: Babu Moger
---
arch/sparc/lib/Memcpy_utils.S | 120 +++---
arch/sparc/lib/NG4memcpy.S| 128
On Tue, Aug 8, 2017 at 3:38 AM, David Jeffery wrote:
> There is a race between changing I/O elevator and request_queue removal
> which can trigger the warning in kobject_add_internal. A program can
> use sysfs to request a change of elevator at the same time another task
> is unregistering the re
This series of patches updates the memcpy, memset, copy_to_user, copy_from_user
etc for SPARC M7/M8 architecture.
New algorithm here takes advantage of the M7/M8 block init store ASIs, with much
more optimized way to improve the performance. More detail are in code comments.
Tested and compared t
Separate the exception handlers from NG4memcpy so that it can be
used with new memcpy routines. Make a separate file for all these handlers.
Signed-off-by: Babu Moger
---
arch/sparc/lib/Makefile |2 +
arch/sparc/lib/Memcpy_utils.S | 163 +
arch/
For SoC to achieve its lowest power platform idle state a set of
hardware preconditions must be met. These preconditions or constraints
can be obtained by issuing a device specific method (_DSM) with
function "1". Refer to the document provided in the link below.
Here during initialization (from
New algorithm that takes advantage of the M7/M8 block init store
ASI, ie, overlapping pipelines and miss buffer filling.
Full details in code comments.
Signed-off-by: Babu Moger
---
arch/sparc/kernel/head_64.S | 16 +-
arch/sparc/lib/M7copy_from_user.S | 41 ++
arch/sparc/lib/M7copy_to
Add accurate exception reporting in M7memcpy
Signed-off-by: Babu Moger
---
arch/sparc/lib/M7copy_from_user.S | 11 +-
arch/sparc/lib/M7copy_to_user.S | 10 +-
arch/sparc/lib/M7memcpy.S | 396 ++--
arch/sparc/lib/Memcpy_utils.S | 182 +++
Marc,
On 2017/8/8 3:07, Marc Zyngier wrote:
> So if you want that information, extract it, expose what is required,
> strictly what is required, and only when it is required.
>
> In the meantime, I'm NAKing this patch, and any patch that will expose
> _EL2 registers outside of nested virtualizati
Currently passing tid(gettid(2)) of a thread in struct ucred in
SCM_CREDENTIALS message requires CAP_SYS_ADMIN capability otherwise
it fails with EPERM error. Some applications deal with thread id
of a thread(tid) and so it would help to allow tid in SCM_CREDENTIALS
message. Basically, either tgid(
> store_freq function of devfreq userspace governor
> executes further, even if error is returned from sscanf,
> this will result in setting up wrong frequency value.
>
> Add proper error check to bail out if any error is returned.
>
> Signed-off-by: Santosh Mardi
Acked-by: MyungJoo Ham
> ---
-crossrelease-feature/20170807-172617
config: cris-allmodconfig (attached as .config)
compiler: cris-linux-gcc (GCC) 6.2.0
reproduce:
wget
https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached
On (08/07/17 11:52), Prarit Bhargava wrote:
[..]
> +/**
> + * enum printk_time_type - Timestamp types for printk() messages.
> + * @PRINTK_TIME_DISABLE: No time stamp.
> + * @PRINTK_TIME_LOCAL: Local hardware clock timestamp.
> + * @PRINTK_TIME_BOOT: Boottime clock timestamp.
> + * @PRINTK_TIME_MON
-crossrelease-feature/20170807-172617
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
>> ERROR: "lookup_page
This introduces canaries to struct timer_list in an effort to protect the
function callback pointer from getting rewritten during stack or heap
overflow attacks. The struct timer_list has become a recent target for
security flaw exploitation because it includes the "data" argument in
the structure,
On 08/07/2017 04:21 PM, Edward Cree wrote:
This series simplifies alignment tracking, generalises bounds tracking and
fixes some bounds-tracking bugs in the BPF verifier. Pointer arithmetic on
packet pointers, stack pointers, map value pointers and context pointers has
been unified, and bo
Hi,
On 2017년 08월 07일 22:06, Santosh Mardi wrote:
> store_freq function of devfreq userspace governor
> executes further, even if error is returned from sscanf,
> this will result in setting up wrong frequency value.
>
> Add proper error check to bail out if any error is returned.
>
> Signed-off-
On 08/02/2017 10:19 PM, Kees Cook wrote:
> Both the upcoming logging improvements and changes to RET_KILL will need
> to know which filter a given seccomp return value originated from. In
> order to delay logic processing of result until after the seccomp loop,
> this adds a single pointer assignme
Hi Linus,
2017-08-08 0:37 GMT+09:00 Linus Walleij :
> On Mon, Aug 7, 2017 at 3:50 PM, Masahiro Yamada
> wrote:
>
>> Adding "interrupts" property in DT causes
>> of_pupulate_default_populate() to assign virtual IRQ numbers
>> before driver probing. So it does not work well with IRQ domain hierarc
Add Robert Richter as the primary maintainer for this platform.
Signed-off-by: Jayachandran C
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 44cb004..f2d8963 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3155,6 +3155,7 @@ S:Supported
devm_memremap_pages() records mapped ranges in pgmap_radix with an entry
per section's worth of memory (128MB). The key for each of those
entries is a section number.
This leads to false positives when devm_memremap_pages() is passed a
section-unaligned range as lookups in the misalignment fail t
> > + chip->enable_gpio = devm_gpiod_get(&spi->dev, "enable",
> GPIOD_OUT_LOW);
> > + if (IS_ERR(chip->enable_gpio)) {
> > + dev_dbg(&spi->dev, "No enable-gpios property\n");
> > + chip->enable_gpio = NULL;
>
> Also, the error handling here is not correct as
Hi Dave,
On Mon, Aug 7, 2017 at 11:28 AM, David Miller wrote:
>
> Please, no.
Sorry you dislike it, I had intentionally marked it as RFC as its an
idea I was just toying with the idea and posted it early to get
feedback.
>
> The amount of hellish hacks we are adding to deal with this is getting
Hi Marc,
2017-08-07 22:36 GMT+09:00 Marc Zyngier :
> On 07/08/17 12:59, Masahiro Yamada wrote:
>> Hi Marc,
>>
>> Thanks for your comments.
>>
>>
>> 2017-08-07 19:43 GMT+09:00 Marc Zyngier :
>>> On 03/08/17 12:15, Masahiro Yamada wrote:
UniPhier SoCs contain AIDET (ARM Interrupt Detector). T
Hello Linux
http://beat4sale.com/development.php?cover=27rgc725thxdcx
All Best
Vinay
On 08/02/2017 10:19 PM, Kees Cook wrote:
> Right now, SECCOMP_RET_KILL kills the current thread. There have been
> a few requests for RET_KILL to kill the entire process (the thread
> group), but since seccomp's u32 return values are ABI, and ordered by
> lowest value, with RET_KILL as 0, there isn
On 08/02/2017 10:19 PM, Kees Cook wrote:
> This refactors the errno tests (since they all use the same pattern for
> their filter) and adds a RET_DATA field ordering test.
>
> Signed-off-by: Kees Cook
This all looks good and is a great idea.
Reviewed-by: Tyler Hicks
Tyler
> ---
> tools/test
The bindings were not updated when the sun5i CCU driver was added in
commit 5e73761786d6 ("clk: sunxi-ng: Add sun5i CCU driver").
Signed-off-by: Jonathan Liu
---
Documentation/devicetree/bindings/clock/sunxi-ccu.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/
On Sat, Aug 5, 2017 at 3:23 PM, Corey Minyard wrote:
> On 08/04/2017 08:18 PM, Brendan Higgins wrote:
>>
>> This patchset introduces IPMI Block Transfer over I2C (BT-I2C), which has
>> the
>> same semantics as IPMI Block Transfer except it done over I2C.
>>
>> For the OpenBMC people, this is based
Hi,
On 08/07/2017 04:13 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> The component u_serial provides a glue layer between TTY layer
>> and a USB gadget device needed to provide a basic serial port
>> functionality. Currently, u_serial sits under gadget/function
>> and depends on CONFIG_U
Commit 0ee5941 : (x86/panic: replace smp_send_stop() with kdump friendly
version in panic path) introduced crash_smp_send_stop() which is a weak
function and can be overriden by architecture codes to fix the side effect
caused by commit f06e515 : (kernel/panic.c: add "crash_kexec_post_
notifiers"
Hi Marc,
2017-08-07 17:17 GMT+09:00 Marc Zyngier :
> On 07/08/17 05:45, Masahiro Yamada wrote:
>> Hi Marc,
>>
>>
>> 2017-08-03 22:30 GMT+09:00 Marc Zyngier :
>>> On 03/08/17 13:52, Masahiro Yamada wrote:
Hi Marc,
2017-08-03 17:41 GMT+09:00 Marc Zyngier :
> Hi Masahiro,
>
>>>
On 08/02/2017 10:19 PM, Kees Cook wrote:
> SECCOMP_RET_KILL is supposed to kill the current thread (and userspace
> depends on this), so test for this, distinct from killing the entire
> process. This also tests killing the entire process with the new
> SECCOMP_FILTER_FLAG_KILL_PROCESS flag. (This
On 08/07/2017 08:03 PM, Tyler Hicks wrote:
> On 08/02/2017 10:19 PM, Kees Cook wrote:
>> Both the upcoming logging improvements and changes to RET_KILL will need
>> to know which filter a given seccomp return value originated from. In
>> order to delay logic processing of result until after the sec
On Mon, Aug 7, 2017 at 6:29 PM, Tyler Hicks wrote:
>> + /* Only the thread died. Let parent know this thread didn't die. */
>
> This read a little odd to me. How about, "Only the created thread died.
> Let parent know the this creating thread didn't die."?
Sounds good. I've updated this to be
This patch adds a sysfs entry to control urgent mode for background GC.
If this is set, background GC thread conducts GC with gc_urgent_sleep_time
all the time.
Signed-off-by: Jaegeuk Kim
---
Documentation/ABI/testing/sysfs-fs-f2fs | 12
fs/f2fs/gc.c| 17
We expect cold files write data sequentially, but sometimes some of small data
can be updated, which incurs fragmentation.
Let's avoid that.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/segment.h | 4
1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 6b871b
On Mon, Aug 7, 2017 at 6:03 PM, Tyler Hicks wrote:
>> -static u32 seccomp_run_filters(const struct seccomp_data *sd)
>> +static u32 seccomp_run_filters(const struct seccomp_data *sd,
>> +struct seccomp_filter **match)
>> {
>> struct seccomp_data sd_local;
>>
Quoting Peter Rosin (2017-07-31 03:33:22)
> On 2017-07-14 23:40, Stephen Boyd wrote:
> > @@ -1964,16 +1965,26 @@ void ci_hdrc_gadget_destroy(struct ci_hdrc *ci)
> >
> > static int udc_id_switch_for_device(struct ci_hdrc *ci)
> > {
> > + int ret = 0;
> > +
> > if (ci->is_otg)
> >
On Mon, Aug 7, 2017 at 6:23 PM, Tyler Hicks wrote:
> On 08/02/2017 10:19 PM, Kees Cook wrote:
>> Right now, SECCOMP_RET_KILL kills the current thread. There have been
>> a few requests for RET_KILL to kill the entire process (the thread
>> group), but since seccomp's u32 return values are ABI, and
On Mon, Aug 07, 2017 at 02:14:48PM -0700, David Miller wrote:
> From: Ding Tianhong
> Date: Mon, 7 Aug 2017 12:13:17 +0800
>
> > Hi David：
> >
> > I think networking tree merge it is a better choice, as it mainly used to
> > tell the NIC
> > drivers how to use the Relaxed Ordering Attribute, an
This refactors the errno tests (since they all use the same pattern for
their filter) and adds a RET_DATA field ordering test.
Signed-off-by: Kees Cook
Reviewed-by: Tyler Hicks
---
tools/testing/selftests/seccomp/seccomp_bpf.c | 95 ---
1 file changed, 58 insertions(+),
Both the upcoming logging improvements and changes to RET_KILL will need
to know which filter a given seccomp return value originated from. In
order to delay logic processing of result until after the seccomp loop,
this adds a single pointer assignment on matches. This will allow both
log and RET_K
Right now, SECCOMP_RET_KILL kills the current thread. There have been
a few requests for RET_KILL to kill the entire process (the thread
group), but since seccomp's u32 return values are ABI, and ordered by
lowest value, with RET_KILL as 0, there isn't a trivial way to provide
an even smaller value
SECCOMP_RET_KILL is supposed to kill the current thread (and userspace
depends on this), so test for this, distinct from killing the entire
process. This also tests killing the entire process with the new
SECCOMP_FILTER_FLAG_KILL_PROCESS flag. (This also moves a bunch of
defines up earlier in the f
This series is the result of Fabricio and I going around a few times
on possible solutions for finding a way to enhance RET_KILL to kill
the process group. There's a lot of ways this could be done, but I
wanted something that felt cleanest. As it happens, Tyler's recent
patch series for logging imp
Hi all,
2017-08-07 22:48 GMT+08:00 Luis Oliveira :
> Hi all,
>
> I'm new here, I got to be Maintainer of this driver by the old Maintainer
> recommendation. Still getting the hang of it :)
>
> On 07-Aug-17 13:26, Philipp Zabel wrote:
>> Hi Jacob,
>>
>> On Mon, 2017-08-07 at 19:06 +0800, Jacob Chen
On 2017/7/26 18:15, Hanjun Guo wrote:
From: Hanjun Guo
When enabling ITS NUMA support on D05, I got the boot log:
[0.00] SRAT: PXM 0 -> ITS 0 -> Node 0
[0.00] SRAT: PXM 0 -> ITS 1 -> Node 0
[0.00] SRAT: PXM 0 -> ITS 2 -> Node 0
[0.00] SRAT: PXM 1 -> ITS 3 -> Nod
On 08/07/2017 08:59 PM, Kees Cook wrote:
> Right now, SECCOMP_RET_KILL kills the current thread. There have been
> a few requests for RET_KILL to kill the entire process (the thread
> group), but since seccomp's u32 return values are ABI, and ordered by
> lowest value, with RET_KILL as 0, there isn
Hi Doug,
Today's linux-next merge of the rdma tree got a conflict in:
drivers/net/ethernet/mellanox/mlx5/core/main.c
between commit:
eeb66cdb6826 ("net/mlx5: Separate between E-Switch and MPFS")
from Linus' tree and commit:
c85023e153e3 ("IB/mlx5: Add raw ethernet local loopback support
SF Markus Elfring writes:
I didn't consider one would be triggered by the kzalloc failure.
>>>
>>> Do you reconsider any special system settings for further
>>> software evolution then?
>>
>> Sorry, I don't quite understand your question.
>
> Do you try to configure the Linux error reportin
Rob Herring writes:
> On Tue, Jul 25, 2017 at 4:44 PM, Rob Herring wrote:
>> This series is the last steps to remove storing the full path for every
>> DT node. Instead, we can create full path strings dynamically as needed
>> with printf %pOF specifiers (commit ce4fecf1fe15). There are a number
Hi,
On Tue, Aug 08, 2017 at 09:19:23AM +0800, kernel test robot wrote:
>
> Greeting,
>
> FYI, we noticed a -19.3% regression of will-it-scale.per_process_ops due to
> commit:
>
>
> commit: 76742700225cad9df49f05399381ac3f1ec3dc60 ("mm: fix
> MADV_[FREE|DONTNEED] TLB flush miss problem")
> ur
Signed-off-by: James Pack
---
lib/Kconfig.kgdb | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/Kconfig.kgdb b/lib/Kconfig.kgdb
index ab4ff0e..a5f7412 100644
--- a/lib/Kconfig.kgdb
+++ b/lib/Kconfig.kgdb
@@ -78,7 +78,7 @@ config KDB_DEFAULT_ENABLE
depends on KGDB_KD
This closes a hole in our SMAP implementation.
This patch comes from grsecurity. Good catch!
Cc: sta...@vger.kernel.org
Signed-off-by: Andy Lutomirski
---
arch/x86/entry/entry_64.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index
On Fri, Aug 4, 2017 at 8:01 PM, Sudeep Holla wrote:
> +int scmi_do_xfer(const struct scmi_handle *handle, struct scmi_xfer *xfer)
> +{
> + int ret;
> + int timeout;
> + struct scmi_info *info = handle_to_scmi_info(handle);
> + struct device *dev = info->dev;
> +
> +
On Mon, Aug 07, 2017 at 11:03:53AM +0200, Linus Walleij wrote:
> On Tue, Aug 1, 2017 at 12:24 AM, Danilo Krummrich
> wrote:
>
> > +config SERIO_GPIO_PS2
> > + tristate "GPIO PS/2 bit banging driver"
> > + help
> > + Say Y here if you want PS/2 bit banging support via GPIO.
> >
On Mon, Aug 7, 2017 at 1:56 PM, Boris Ostrovsky
wrote:
>
>> diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
>> index 811e4ddb3f37..a3dcd83187ce 100644
>> --- a/arch/x86/xen/enlighten_pv.c
>> +++ b/arch/x86/xen/enlighten_pv.c
>> @@ -579,6 +579,71 @@ static void xen_write_ldt_
On Mon, Aug 07, 2017 at 11:32:44PM +0200, Alexandre Belloni wrote:
> On 07/08/2017 at 09:57:41 +0800, Chen Zhong wrote:
> > The core driver should create and manage irq mappings instead of
> > leaf drivers. This patch change to pass irq domain to
> > devm_mfd_add_devices() and it will create mappin
This patch supports to enable f2fs to accept quota information through
mount option:
- {usr,grp,prj}jquota=
- jqfmt=
Then, in ->mount flow, we can recover quota file during log replaying,
by this, journelled quota can be supported.
Signed-off-by: Chao Yu
Signed-off-by: Jaegeuk Kim
---
Document
On 2017/8/8 9:42, Jaegeuk Kim wrote:
> We expect cold files write data sequentially, but sometimes some of small data
> can be updated, which incurs fragmentation.
> Let's avoid that.
>
> Signed-off-by: Jaegeuk Kim
Reviewed-by: Chao Yu
Thanks,
> ---
> fs/f2fs/segment.h | 4
> 1 file cha
Hi Chen,
On Mon, Aug 07, 2017 at 09:57:44AM +0800, Chen Zhong wrote:
> This patch add support to handle MediaTek PMIC MT6397/MT6323 key
> interrupts including pwrkey and homekey, also add setting for
> long press key shutdown behavior.
>
> Signed-off-by: Chen Zhong
> ---
> drivers/input/keyboar
On Sun, Aug 06, 2017 at 01:11:19PM +0530, Arvind Yadav wrote:
> usb_device_id are not supposed to change at runtime. All functions
> working with usb_device_id provided by work with
> const usb_device_id. So mark the non-const structs as const.
>
> Fix checkpatch.pl error in patch 1,3 and 7:
> ER
Change log from v1:
- update Documentation.
This patch adds a sysfs entry to control urgent mode for background GC.
If this is set, background GC thread conducts GC with gc_urgent_sleep_time
all the time.
Signed-off-by: Jaegeuk Kim
---
Documentation/ABI/testing/sysfs-fs-f2fs | 12
Hi Jaegeuk,
On 2017/8/8 9:42, Jaegeuk Kim wrote:
> This patch adds a sysfs entry to control urgent mode for background GC.
> If this is set, background GC thread conducts GC with gc_urgent_sleep_time
> all the time.
Good idea.
If we want to add more gc policy, current approach is not friendly to
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
for-next/gcc-plugin/structleak
commit f7dd2507893cc3425d3ffc2369559619960befb0
Author: Ard Biesheuvel
AuthorDate: Sun Aug 6 12:06:27 2017 +010
Sometimes we want to get tasks in TASK_RUNNING sepcifically,
instead of dump all tasks.
For example, when the loadavg are high, we want to dump
tasks in TASK_RUNNING and TASK_UNINTERRUPTIBLE, which contribute
to system load. But mostly there're lots of tasks in Sleep state,
which occupies almost al
Hi Martin,
Commit
facfc963ae92 ("scsi: g_NCR5380: Two DTC436 PDMA workarounds")
is missing a Signed-off-by from its author.
--
Cheers,
Stephen Rothwell
Hi Chao,
On 08/08, Chao Yu wrote:
> Hi Jaegeuk,
>
> On 2017/8/8 9:42, Jaegeuk Kim wrote:
> > This patch adds a sysfs entry to control urgent mode for background GC.
> > If this is set, background GC thread conducts GC with gc_urgent_sleep_time
> > all the time.
>
> Good idea.
>
> If we want to
From: Benjamin Fair
This patch introduces a framework for writing IPMI drivers which run on
a Board Management Controller. It is similar in function to OpenIPMI.
The framework handles registering devices and routing messages.
Signed-off-by: Benjamin Fair
Signed-off-by: Brendan Higgins
---
dri
From: Benjamin Fair
The driver was handling interaction with userspace on its own. This
patch changes it to use the functionality of the ipmi_bmc framework
instead.
Note that this removes the ability for the BMC to set SMS_ATN by making
an ioctl. If this functionality is required, it can be adde
From: Benjamin Fair
This creates a char device which allows userspace programs to send and
receive IPMI messages. Messages are only routed to userspace if no other
kernel driver can handle them.
Signed-off-by: Benjamin Fair
Signed-off-by: Brendan Higgins
---
drivers/char/ipmi_bmc/Kconfig
From: Benjamin Fair
Instead of handling interaction with userspace and providing a file
interface, rely on the IPMI BMC framework to do this. This simplifies
the logic and eliminates duplicate code.
Signed-off-by: Benjamin Fair
Signed-off-by: Brendan Higgins
---
drivers/char/ipmi_bmc/ipmi_bmc
This introduces a framework for implementing the BMC side of the IPMI protocol,
roughly mirroring the host side OpenIPMI framework; it attempts to abstract away
hardware interfaces, such as Block Transfer interface hardware implementations
from IPMI command handlers.
It does this by implementing t
On Mon, Aug 07, 2017 at 08:45:25AM -0700, James Bottomley wrote:
> On Mon, 2017-08-07 at 20:01 +0530, Kashyap Desai wrote:
> >
> > We have to attempt this use case and see how it behaves. I have not
> > tried this, so not sure if things are really bad or just some tuning
> > may be helpful. I will
Xen's raw SYSCALL entries are much less weird than native. Rather
than fudging them to look like native entries, use the Xen-provided
stack frame directly.
This lets us eliminate entry_SYSCALL_64_after_swapgs and two uses of
the SWAPGS_UNSAFE_STACK paravirt hook. The SYSENTER code would
benefit
This is a simple optimization for kvm_vcpu_on_spin, the
main idea is described in patch-1's commit msg.
I did some tests base on the RFC version, the result shows
that it can improves the performance slightly.
== Geekbench-3.4.1 ==
VM1:8U,4G, vcpu(0...7) is 1:1 pinned to pcpu(6...11,18,19)
This implements the kvm_arch_vcpu_in_kernel() for ARM.
Signed-off-by: Longpeng(Mike)
---
virt/kvm/arm/arm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 862f820..b9f68e4 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
On Wed, Jul 26, 2017 at 4:32 PM, Maxime Ripard
wrote:
> On Wed, Jul 26, 2017 at 04:28:23PM +0800, Chen-Yu Tsai wrote:
>> Hi everyone,
>>
>> This is v2 of my AXP813 support series. The device tree patches are
>> based on my A83T MMC support series. These will go through the sunxi
>> tree. The dt-bi
If the vcpu(me) exit due to request a usermode spinlock, then
the spinlock-holder may be preempted in usermode or kernmode.
But if the vcpu(me) is in kernmode, then the holder must be
preempted in kernmode, so we should choose a vcpu in kernmode
as the most eligible candidate.
This introduces kvm
This implements the kvm_arch_vcpu_in_kernel() for s390.
Signed-off-by: Longpeng(Mike)
---
arch/s390/kvm/kvm-s390.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 0b0c689..e46177b 100644
--- a/arch/s390/kvm/kvm-s390.c
1. Implements the kvm_arch_vcpu_in_kernel(), because get_cpl requires
vcpu_load, so we must cache the result(whether the vcpu was preempted
when its cpl=0) in kvm_vcpu_arch.
2. Add ->spin_in_kernel hook, because we can get benefit from VMX.
Signed-off-by: Longpeng(Mike)
---
arch/x86/include/asm
On 08/07/2017 12:21 AM, Huang, Ying wrote:
> From: Huang Ying
>
> Huge page helps to reduce TLB miss rate, but it has higher cache
> footprint, sometimes this may cause some issue. For example, when
> clearing huge page on x86_64 platform, the cache footprint is 2M. But
> on a Xeon E5 v3 2699 C
On 08/07/2017 06:22 AM, Anton Volkov wrote:
Hello.
While searching for races in the Linux kernel I've come across
"drivers/watchdog/pc87413_wdt.ko" module. Here is a question that I came up
with while analyzing results. Lines are given using the info from Linux v4.12.
Consider the following c
Signed-off-by: Yunlong Song
---
fs/f2fs/recovery.c | 3 ++-
fs/f2fs/super.c| 9 +
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index a3d0261..e288319 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -51,7 +51,8 @@ bo
On 08/07/2017 12:34 PM, Greg Kroah-Hartman wrote:
On Sat, Aug 05, 2017 at 12:11:19PM -0700, Guenter Roeck wrote:
On 08/05/2017 08:43 AM, Greg Kroah-Hartman wrote:
On Sat, Aug 05, 2017 at 08:02:17AM +0200, Willy Tarreau wrote:
On Sat, Aug 05, 2017 at 07:55:11AM +0200, Willy Tarreau wrote:
On F
platform_get_irq() returns an error code, but the imx21-hcd driver
ignores it and always returns -ENXIO. This is not correct, and
prevents -EPROBE_DEFER from being propagated properly.
Notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/git/torv
On Mon, Aug 07, 2017 at 06:18:35PM +0800, Coly Li wrote:
> On 2017/8/7 下午4:38, Byungchul Park wrote:
> > Although llist provides proper APIs, they are not used. Make them used.
> >
> > Signed-off-by: Byungchul Park Only have a question about why not using llist_for_each_entry(), it's
Hello,
The
* Hans de Goede [170806 05:37]:
> Register the 5V boost converter as a regulator named
> "regulator-bq24190-usb-vbus". Note the name includes "bq24190" because
> the bq24190 family is also used on ACPI devices where there are no
> device-tree phandles, so regulator_get will fallback to the name an
On Tuesday 08 August 2017 06:36 AM, Masahiro Yamada wrote:
> Hi Linus,
>
> 2017-08-08 0:37 GMT+09:00 Linus Walleij :
>> On Mon, Aug 7, 2017 at 3:50 PM, Masahiro Yamada
>> wrote:
>>
>>> Adding "interrupts" property in DT causes
>>> of_pupulate_default_populate() to assign virtual IRQ numbers
>>>
* Reizer, Eyal [170807 00:47]:
> Hi Tony,
> >
> > * Reizer, Eyal [170807 00:32]:
> > > The following commits:
> > > c815fde wlcore: spi: Populate config firmware data
> > > d776fc8 wlcore: sdio: Populate config firmware data
> > >
> > > Populated the nvs entry for wilink6 and wilink7 only while
Minchan Kim wrote:
> Hi,
>
> On Tue, Aug 08, 2017 at 09:19:23AM +0800, kernel test robot wrote:
>> Greeting,
>>
>> FYI, we noticed a -19.3% regression of will-it-scale.per_process_ops due to
>> commit:
>>
>>
>> commit: 76742700225cad9df49f05399381ac3f1ec3dc60 ("mm: fix
>> MADV_[FREE|DONTNEE
Mike Kravetz writes:
> On 08/07/2017 12:21 AM, Huang, Ying wrote:
>> From: Huang Ying
>>
>> Huge page helps to reduce TLB miss rate, but it has higher cache
>> footprint, sometimes this may cause some issue. For example, when
>> clearing huge page on x86_64 platform, the cache footprint is 2M.
XHCI specification 1.1 does not require xHCI-compliant controllers
to always enable hardware USB2 LPM. However, the current xHCI
driver always enable it when seeing HLC=1.
This patch supports an option for users to control disabling
USB2 Hardware LPM via DT/ACPI attribute.
This option is needed in
Peter Zijlstra writes:
> On Sat, Aug 05, 2017 at 08:47:02AM +0800, Huang, Ying wrote:
>> Yes. That looks good. So you will prepare the final patch? Or you
>> hope me to do that?
>
> I was hoping you'd do it ;-)
Thanks! Here is the updated patch
Best Regards,
Huang, Ying
-->8---
platform_get_irq() returns an error code, but the rockchip_thermal driver
ignores it and always returns -EINVAL. This is not correct and, prevents
-EPROBE_DEFER from being propagated properly.
Notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/
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