Commit-ID: cbdd96f5586151e48317d90a403941ec23f12660
Gitweb: https://git.kernel.org/tip/cbdd96f5586151e48317d90a403941ec23f12660
Author: Masami Hiramatsu
AuthorDate: Tue, 11 Sep 2018 19:21:09 +0900
Committer: Ingo Molnar
CommitDate: Wed, 12 Sep 2018 08:01:16 +0200
kprobes: Don't call BU
Commit-ID: 819319fc93461c07b9cdb3064f154bd8cfd48172
Gitweb: https://git.kernel.org/tip/819319fc93461c07b9cdb3064f154bd8cfd48172
Author: Masami Hiramatsu
AuthorDate: Tue, 11 Sep 2018 19:20:40 +0900
Committer: Ingo Molnar
CommitDate: Wed, 12 Sep 2018 08:01:16 +0200
kprobes: Return error
* Mel Gorman [2018-09-10 10:41:47]:
> On Fri, Sep 07, 2018 at 01:37:39PM +0100, Mel Gorman wrote:
> > > Srikar's patch here:
> > >
> > >
> > > http://lkml.kernel.org/r/1533276841-16341-4-git-send-email-sri...@linux.vnet.ibm.com
> > >
> > > Also frobs this condition, but in a less radical way
Hi,
Is there any plans or may be even progress on that so far?
Thanks,
Alexey
On 26.06.2018 18:36, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin
>
> For situations where sysadmins might want to allow different level of
> access control for different PMUs, we start creating per-PMU
> perf_even
On (09/10/18 13:20), Alexander Potapenko wrote:
> > Awesome. If you and Fengguang can combine forces and lead the
> > whole thing towards "we couldn't care of pr_cont() less", it
> > would be really huge. Go for it!
>
> Sorry, folks, am I understanding right that pr_cont() and flushing the
> b
Commit-ID: a6d18e65dff2b73ceeb187c598b48898e36ad7b1
Gitweb: https://git.kernel.org/tip/a6d18e65dff2b73ceeb187c598b48898e36ad7b1
Author: Masami Hiramatsu
AuthorDate: Tue, 11 Sep 2018 19:20:11 +0900
Committer: Ingo Molnar
CommitDate: Wed, 12 Sep 2018 08:01:16 +0200
kprobes: Remove pointl
Commit-ID: d0555fc78fdba5646a460e83bd2d8249c539bb89
Gitweb: https://git.kernel.org/tip/d0555fc78fdba5646a460e83bd2d8249c539bb89
Author: Masami Hiramatsu
AuthorDate: Tue, 11 Sep 2018 19:19:14 +0900
Committer: Ingo Molnar
CommitDate: Wed, 12 Sep 2018 08:01:15 +0200
kprobes: Remove pointl
Commit-ID: c72e6742f62d7bb82a77a41ca53940cb8f73e60f
Gitweb: https://git.kernel.org/tip/c72e6742f62d7bb82a77a41ca53940cb8f73e60f
Author: Masami Hiramatsu
AuthorDate: Tue, 11 Sep 2018 19:19:43 +0900
Committer: Ingo Molnar
CommitDate: Wed, 12 Sep 2018 08:01:15 +0200
kprobes: Remove pointl
Add an extra check on page dirty bit in change_pte_range() since there
might be case where PTE dirty bit is unset but it's actually dirtied.
One example is when a huge PMD is splitted after written: the dirty bit
will be set on the compound page however we won't have the dirty bit set
on each of th
From: Xin Lin <18650033...@163.com>
Adversaries often attack the Linux kernel via using
commit_creds(prepare_kernel_cred(0)) to submit ROOT
credential for the purpose of privilege escalation.
For processes inside the Linux container, the above
approach also works, because the container and the
hos
Update the provider and client documentation with details about the
metadata support.
Signed-off-by: Peter Ujfalusi
---
Documentation/driver-api/dmaengine/client.rst | 75 +++
.../driver-api/dmaengine/provider.rst | 46
2 files changed, 121 insertions(+)
dif
Hi,
Changes since v2:
- EXPORT_SYMBOL_GPL() for the metadata functions
- Added note to Documentation to not mix the two defined metadata modes
- Fixed the typos in Documentation
Changes since v1:
- Move code from header to dmaengine.c
- Fix spelling
- Use BIT() macro for bit definition
- Update b
The metadata is best described as side band data or parameters traveling
alongside the data DMAd by the DMA engine. It is data
which is understood by the peripheral and the peripheral driver only, the
DMA engine see it only as data block and it is not interpreting it in any
way.
The metadata can b
Nobody sets 'targets' in the top-level Makefile or arch/*/Makefile,
hence $(targets) is empty.
$(wildcard .*.cmd) will do for including the .vmlinux.cmd file.
Signed-off-by: Masahiro Yamada
---
Makefile | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
i
When mixed/config targets are being processed, the top Makefile
does not need to parse the rest of targets.
Signed-off-by: Masahiro Yamada
---
Makefile | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/Makefile b/Makefile
index 4d5c883..4b76e22 100644
--- a/Makefile
+++ b
On Tue, Sep 11, 2018 at 5:37 PM Greg Kroah-Hartman
wrote:
>
> On Tue, Sep 11, 2018 at 10:17:44AM +0200, Takashi Iwai wrote:
> > [ seems like my previous post didn't go out properly; if you have
> > already received it, please discard this one ]
>
> Sorry, I got it, it's just in my large queue :(
Hello Lee,
Thanks again for the review! I see you did bunch of them... I really
admire your devotion. For me reviewing is hard work. I do appreciate
it. So nice to see you're back in the business =)
On Tue, Sep 11, 2018 at 02:48:08PM +0100, Lee Jones wrote:
> On Wed, 29 Aug 2018, Matti Vaittinen
* Baoquan He wrote:
> On 09/11/18 at 08:08pm, Baoquan He wrote:
> > On 09/11/18 at 11:28am, Ingo Molnar wrote:
> > > Yeah, so proper context is still missing, this paragraph appears to
> > > assume from the reader a
> > > whole lot of prior knowledge, and this is one of the top comments in
>
--
I, Mikhail Fridman have selected you specifically as one of my
beneficiaries for my Charitable Donation of $5 Million Dollars,
Check the link below for confirmation:
https://www.rt.com/business/343781-mikhail-fridman-will-charity/
I await your earliest response for further directives.
This check has been here more than a decade since commit 0c53c8e6eb45
("kbuild: check for wrong use of CFLAGS").
Enough time for migration has passed.
Signed-off-by: Masahiro Yamada
---
scripts/Makefile.build | 10 --
1 file changed, 10 deletions(-)
diff --git a/scripts/Makefile.build
We don't have perf test available to test watchpoint functionality.
Add simple set of tests:
- Read only watchpoint
- Write only watchpoint
- Read / Write watchpoint
- Runtime watchpoint modification
Ex on powerpc:
$ sudo ./perf test 22
22: Watchpoint
On Wed, Sep 12, 2018 at 9:22 AM zhong jiang wrote:
>
> platform_driver_register will set the .owner field. So it is safe
> to remove the redundant assignment.
>
> The issue is detected with the help of Coccinelle.
>
> Signed-off-by: zhong jiang
> ---
> drivers/staging/greybus/audio_codec.c|
Hi Reinette,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/x86/core]
[also build test ERROR on v4.19-rc3 next-20180911]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci
On Wed, Sep 12, 2018 at 01:25:27PM +0800, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-7):
>
> commit: 02a5c550b2738f2bfea8e1e00aa75944d71c9e18 ("rcu: Abstract extended
> quiescent state determination")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/lin
On Wed, Sep 12, 2018 at 02:50:08AM +, YueHaibing wrote:
> Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
>
> Signed-off-by: YueHaibing
> ---
> drivers/staging/mt7621-pci/pci-mt7621.c | 5 +
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/staging/mt76
On Tue, 11 Sep 2018 22:26:54 +0200
Arnd Bergmann wrote:
> On Sun, Sep 9, 2018 at 6:12 AM Al Viro wrote:
> >
> > On Sat, Sep 08, 2018 at 04:28:12PM +0200, Arnd Bergmann wrote:
> > > These are all handled by the random driver, so instead of listing
> > > each ioctl, we can just use the same func
2018-09-12 13:35 GMT+09:00 Vinod :
> On 12-09-18, 12:01, Masahiro Yamada wrote:
>> Hi Vinod,
>>
>>
>> 2018-09-11 16:00 GMT+09:00 Vinod :
>> > On 24-08-18, 10:41, Masahiro Yamada wrote:
>> >
>> >> +/* mc->vc.lock must be held by caller */
>> >> +static u32 __uniphier_mdmac_get_residue(struct uniphie
FYI, we noticed the following commit (built with gcc-7):
commit: 02a5c550b2738f2bfea8e1e00aa75944d71c9e18 ("rcu: Abstract extended
quiescent state determination")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: perf_event_tests
with following parameters:
On Tue, Sep 11, 2018 at 09:58:48PM -0700, Guenter Roeck wrote:
> On 09/11/2018 09:58 AM, Colin King wrote:
> > From: Colin Ian King
> >
> > Trivial fix to spelling mistake in comment
> >
> > Signed-off-by: Colin Ian King
>
> Reviewed-by: Guenter Roeck
>
> Interesting - drivers/firmware/googl
Hi everyone,
Helios4, an Armada 388 based NAS SBC, provides 2 (4-pins) fan connectors.
The PWM pins on both connector are connected to GPIO on bank 1. Current
gpio-mvebu does not allow more than one PWM on the same bank.
Aditya
---
Changes v1->v2:
* Merge/squash "[Patch 2/2] gpio: mvebu: Al
Allow more than 1 PWM request (eg. PWM fan) on the same GPIO chip. If
the other PWM counter is unused, allocate it to next PWM request.
The priority would be:
1. Default counter assigned to the bank
2. Unused counter that is assigned to other bank
Since there are only two PWM counters, only two PW
On Tue, Sep 11, 2018 at 9:25 PM, Masahiro Yamada
wrote:
> You can always prefix variant/platform header search paths with
> $(srctree)/ because $(srctree) is '.' for in-tree building.
>
> Signed-off-by: Masahiro Yamada
> ---
>
> arch/xtensa/Makefile | 4
> 1 file changed, 4 deletions(-)
Th
On 09/07/2018 10:19 AM, Matthew Wilcox wrote:
On Fri, Sep 07, 2018 at 09:05:39AM +0800, kernel test robot wrote:
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 0a3856392cf
On 09/11/2018 09:58 AM, Colin King wrote:
From: Colin Ian King
Trivial fix to spelling mistake in comment
Signed-off-by: Colin Ian King
Reviewed-by: Guenter Roeck
Interesting - drivers/firmware/google/ does not have a maintainer.
Greg - is it correct to assume that you are the de-facto ma
$(srctree) always points to the top of the source tree whether
KBUILD_SRC is set or not.
Signed-off-by: Masahiro Yamada
---
scripts/Kbuild.include | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index ce53639..46cc43e 100644
--
Hi all,
News: there will be no linux-next releases on Friday or Monday.
Changes since 20180911:
Dropped trees: xarray, ida (temporarily)
I applied a patch for a runtime problem in the vfs tree and I still
disabled building some samples.
The drm-misc tree gained a conflict against the drm tree
On 12-09-18, 12:01, Masahiro Yamada wrote:
> Hi Vinod,
>
>
> 2018-09-11 16:00 GMT+09:00 Vinod :
> > On 24-08-18, 10:41, Masahiro Yamada wrote:
> >
> >> +/* mc->vc.lock must be held by caller */
> >> +static u32 __uniphier_mdmac_get_residue(struct uniphier_mdmac_desc *md)
> >> +{
> >> + u32 re
On Mon, Sep 10, 2018 at 7:16 PM, Christoph Hellwig wrote:
> On Fri, Sep 07, 2018 at 06:14:29PM +0530, Anup Patel wrote:
>> This patch provides arch_show_interrupts() implementation to
>> show IPI stats via /proc/interrupts.
>>
>> Now the contents of /proc/interrupts" will look like below:
>>
You can always prefix variant/platform header search paths with
$(srctree)/ because $(srctree) is '.' for in-tree building.
Signed-off-by: Masahiro Yamada
---
arch/xtensa/Makefile | 4
1 file changed, 4 deletions(-)
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index 295c120..d
You can always prefix machine/plat header search paths with
$(srctree)/ because $(srctree) is '.' for in-tree building.
Signed-off-by: Masahiro Yamada
---
KernelVersion: v4.19-rc3
arch/arm/Makefile | 4
1 file changed, 4 deletions(-)
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
in
Hi Arnd, Nick, Stefan,
On Mon, Sep 10, 2018 at 2:14 PM, Arnd Bergmann wrote:
> On Mon, Sep 10, 2018 at 8:05 AM Stefan Agner wrote:
>>
>> ARM32 arch code uses the __naked attribute. This has previously been
>> defined in include/linux/compiler-gcc.h, which is no longer included
>> for Clang. Defi
Introuduce linux generic suspend states supported properties.
It is convenient for the generic suspend path to have
the knowledge of the suspend states supported based on the
device tree properties based on which it can either be suspended
or safely bailed out of suspend if none of the suspend stat
On 11-09-18, 14:58, Yu Zhao wrote:
> On Tue, Sep 11, 2018 at 08:06:49AM +0200, Takashi Iwai wrote:
> > On Mon, 10 Sep 2018 23:21:50 +0200,
> > Yu Zhao wrote:
> > >
> > > In snd_hdac_bus_init_chip(), we enable interrupt before
> > > snd_hdac_bus_init_cmd_io() initializing dma buffers. If irq has
>
On Wed, 12 Sep 2018 10:08:37 +0800
"Leizhen (ThunderTown)" wrote:
> After patch 7e066fb870fc ("tracepoints: add DECLARE_TRACE() and
> DEFINE_TRACE()"),
> the trace APIs declared by "TRACE_EVENT(irq_handler_entry" can not be
> directly used
> by ko, because it's not explicitly exported by EXPORT
platform_driver_register will set the .owner field. So it is safe
to remove the redundant assignment.
The issue is detected with the help of Coccinelle.
Signed-off-by: zhong jiang
---
sound/soc/mediatek/mt2701/mt2701-wm8960.c | 1 -
sound/soc/mediatek/mt6797/mt6797-mt6351.c | 1 -
sound/soc/roc
Signed-off-by: Diego Viola
---
CREDITS | 2 +-
MAINTAINERS | 2 +-
Makefile| 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/CREDITS b/CREDITS
index 5befd2d71..b82efb36d 100644
--- a/CREDITS
+++ b/CREDITS
@@ -1473,7 +1473,7 @@ W: http://www.linux-ide.org/
W: http://w
platform_driver_register will set the .owner field. So it is safe
to remove the redundant assignment.
The issue is detected with the help of Coccinelle.
Signed-off-by: zhong jiang
---
drivers/staging/greybus/audio_codec.c| 1 -
drivers/staging/mt7621-eth/gsw_mt7621.c | 1 -
drivers/staging
arch/sparc/vdso/Makefile is a replica of arch/x86/entry/vdso/Makefile.
Clean-up the Makefile in the same way as I did for x86:
- Remove unnecessary export
- Put the generated linker script to $(obj)/ instead of $(src)/
- Simplify cmd_vdso2c
The corresponding x86 commits are:
- 61615faf0a89
persistent_ram_vmap() returns the page start vaddr.
persistent_ram_iomap() supports non-page-aligned mapping.
persistent_ram_buffer_map() always adds offset-in-page to the vaddr
returned from these two functions, which causes incorrect mapping of
non-page-aligned persistent ram buffer.
Signed-off
On Fri, 2018-09-07 at 13:09 -0500, Rob Herring wrote:
> On Thu, Sep 6, 2018 at 9:21 PM Ley Foon Tan
> wrote:
> >
> >
> > On Wed, 2018-09-05 at 18:53 -0500, Rob Herring wrote:
> > >
> > > Align nios2 with other architectures which build the dtb files in
> > > the
> > > same directory as the dts
On 09/11/18 at 08:08pm, Baoquan He wrote:
> On 09/11/18 at 11:28am, Ingo Molnar wrote:
> > Yeah, so proper context is still missing, this paragraph appears to assume
> > from the reader a
> > whole lot of prior knowledge, and this is one of the top comments in
> > kaslr.c so there's nowhere
> >
> While testing, I got curious, as a 'perf test' user, why one of the
> tests had the "Skip" result:
>
> [root@seventh ~]# perf test watchpoint
> 22: Watchpoint:
> 22.1: Read Only Watchpoint: Skip
> 22.2: Write Only Watc
Hi Ezequiel,
On Tue, Sep 11, 2018 at 04:40:29PM -0300, Ezequiel Garcia wrote:
> On Tue, 2018-09-11 at 08:00 +0530, Manivannan Sadhasivam wrote:
> > Since the same family members of Rock960 boards (Rock960 and Ficus)
> > share the same configuration, split out the common nodes into a common
> > dts
On 09/10/2018 11:01 PM, Arnaldo Carvalho de Melo wrote:
> Em Mon, Sep 10, 2018 at 11:18:30AM -0300, Arnaldo Carvalho de Melo escreveu:
>> Em Mon, Sep 10, 2018 at 10:47:54AM -0300, Arnaldo Carvalho de Melo escreveu:
>>> Em Mon, Sep 10, 2018 at 12:31:54PM +0200, Jiri Olsa escreveu:
On Mon, Se
Hi Vinod,
2018-09-11 16:00 GMT+09:00 Vinod :
> On 24-08-18, 10:41, Masahiro Yamada wrote:
>
>> +/* mc->vc.lock must be held by caller */
>> +static u32 __uniphier_mdmac_get_residue(struct uniphier_mdmac_desc *md)
>> +{
>> + u32 residue = 0;
>> + int i;
>> +
>> + for (i = md->sg_cur; i
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Signed-off-by: YueHaibing
---
drivers/staging/mt7621-pci/pci-mt7621.c | 5 +
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/staging/mt7621-pci/pci-mt7621.c
b/drivers/staging/mt7621-pci/pci-mt7621.c
index ba1f117
This patch removes a set but unused variable in quirks.c.
Fixes warning:
variable ‘mmio_sys_info’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Joshua Abraham
---
drivers/pci/quirks.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
On Mon, Sep 10, 2018 at 1:55 PM Al Viro wrote:
>
> Hadn't that sucker been dead code since 0.98.2? What am I missing here?
> Note that this thing had quite a few functionality changes over those
> years; had they even been tested?
Looks about right to me. The only point that actually acts on FIO
On Tue, Sep 11, 2018 at 04:35:03PM -0700, Yang Shi wrote:
> On 9/11/18 2:16 PM, Matthew Wilcox wrote:
> > On Wed, Sep 12, 2018 at 04:58:11AM +0800, Yang Shi wrote:
> > > mm/mmap.c | 97
> > > +--
> > I really think you're going about thi
On Tue, Sep 11, 2018 at 11:17:07AM +0100, Suzuki K Poulose wrote:
> Switch to the updated coresight bindings.
>
> Cc: Shawn Guo
> Cc: Sascha Hauer
> Cc: Pengutronix Kernel Team
> Cc: Fabio Estevam
> Cc: Mathieu Poirier
> Signed-off-by: Suzuki K Poulose
As per the convention we use for subje
On Tue, Sep 11 2018 at 17:02 -0600, Matthias Kaehlcke wrote:
Hi Raju/Lina,
On Fri, Jul 27, 2018 at 03:34:46PM +0530, Raju P L S S S N wrote:
From: Lina Iyer
Controllers may be in 'solver' state, where they could be in autonomous
mode executing low power modes for their hardware and as such ar
This driver was originally written by ST in 2016 as a misc input device
driver, and hasn't been maintained for a long time. I grabbed some code
from it's API and reformed it into a iio proximity device driver.
This version of driver uses i2c bus to talk to the sensor and
polling for measuring compl
On Tue, Sep 11 2018 at 16:39 -0600, Matthias Kaehlcke wrote:
Hi Raju/Lina,
On Fri, Jul 27, 2018 at 03:34:44PM +0530, Raju P L S S S N wrote:
From: Lina Iyer
Allow the controller status be queried. The controller is busy if it is
actively processing request.
Signed-off-by: Lina Iyer
Signed-o
After patch 7e066fb870fc ("tracepoints: add DECLARE_TRACE() and
DEFINE_TRACE()"),
the trace APIs declared by "TRACE_EVENT(irq_handler_entry" can not be directly
used
by ko, because it's not explicitly exported by EXPORT_TRACEPOINT_SYMBOL_GPL or
EXPORT_TRACEPOINT_SYMBOL.
Did we miss it? or it's n
Thank you, Andi!
Yes, that's a situation, also it's an important one I guess.
Another case is that a process running inside a container has exited but
the container still alive.I think this is also a common case. The
potential fix solutions I am thinking are following:
- Using nsfs "device"
On Tue, Sep 11, 2018 at 04:58:44PM -0700, Jae Hyun Yoo wrote:
> On 9/11/2018 4:33 PM, Guenter Roeck wrote:
> >Looking into the patch, clearing the interrupt status at the end of an
> >interrupt handler is always suspicious and tends to result in race
> >conditions (because additional interrupts may
On Mon, Sep 10, 2018 at 11:37:52AM +0200, Alex Gonzalez wrote:
> The ConnectCore 6UL Single Board Computer (SBC) Pro contains the
> ConnectCore 6UL System-On-Module.
>
> Its hardware specifications are:
>
> * 256MB DDR3 memory
> * On module 256MB NAND flash
> * Dual 10/100 Ethernet
> * USB Host a
On Thu, Aug 02, 2018 at 12:34:25PM +0200, Oleksij Rempel wrote:
> This board, as well as some other boards with i.MX6 and a PMIC, uses a
> "PMIC_STBY_REQ" line to notify the PMIC about a state change.
> The PMIC is programmed for a specific state change before triggering the
> line.
> In this case,
syzbot has found a reproducer for the following crash on:
HEAD commit:11da3a7f84f1 Linux 4.19-rc3
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11766c6940
kernel config: https://syzkaller.appspot.com/x/.config?x=9917ff4b798e1a1e
dashboard link: https:
On Thu, Aug 02, 2018 at 12:34:21PM +0200, Oleksij Rempel wrote:
> One of the Freescale recommended sequences for power off with external
> PMIC is the following:
> ...
> 3. SoC is programming PMIC for power off when standby is asserted.
> 4. In CCM STOP mode, Standby is asserted, PMIC gates SoC s
Hi!
[ Thanks a lot for upstreaming this.. ]
On Tue, Sep 11, 2018 at 02:34:57PM -0700, Jolly Shah wrote:
> From: Rajan Vaja
>
> Add ZynqMP PM driver. PM driver provides power management
> support for ZynqMP.
>
> Signed-off-by: Rajan Vaja
> Signed-off-by: Jolly Shah
> ---
[...]
> +static irqre
I updated the subject as below to make it clear this is a bindings
change.
dt-bindings: imx6q-clock: add new fsl,pmic-stby-poweroff property
Patch applied, thanks.
Shawn
On Thu, Aug 02, 2018 at 12:34:20PM +0200, Oleksij Rempel wrote:
> Signed-off-by: Oleksij Rempel
> Acked-by: Rob Herring
>
On Mon, 2018-09-03 at 18:49 +0200, Greg Kroah-Hartman wrote:
> 4.4-stable review patch. If anyone has any objections, please let me know.
>
> --
>
> From: Govindarajulu Varadarajan
>
> [ Upstream commit ab123fe071c9aa9680ecd62eb080eb26cff4892c ]
>
> When driver gets notificati
> Applied to 4.20/scsi-queue, thank you!
4.19/scsi-fixes, that is...
--
Martin K. Petersen Oracle Linux Engineering
Laura,
> There are two cases that trigger this bug. Switch to using a
> dynamically allocated buffer for one case and do not assign
> a NULL buffer in another case.
Applied to 4.20/scsi-queue, thank you!
--
Martin K. Petersen Oracle Linux Engineering
ith-higher-privileges-inside-container/20180911-162532
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
on test machine: qemu-system-x86_64 -enable-kvm -cpu S
When a PMD swap mapping is removed from a huge swap cluster, for
example, unmap a memory range mapped with PMD swap mapping, etc,
free_swap_and_cache() will be called to decrease the reference count
to the huge swap cluster. free_swap_and_cache() may also free or
split the huge swap cluster, and f
This is the final step of the THP swapin support. When reclaiming a
anonymous THP, after allocating the huge swap cluster and add the THP
into swap cache, the PMD page mapping will be changed to the mapping
to the swap space. Previously, the PMD page mapping will be split
before being changed. I
During fork, the page table need to be copied from parent to child. A
PMD swap mapping need to be copied too and the swap reference count
need to be increased.
When the huge swap cluster has been split already, we need to split
the PMD swap mapping and fallback to PTE copying.
When swap count co
The help of CONFIG_THP_SWAP is updated to reflect the latest progress
of THP (Tranparent Huge Page) swap optimization.
Signed-off-by: "Huang, Ying"
Reviewed-by: Dan Williams
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johannes Weiner
Cc: Shaohua Li
Cc: Hugh Dickins
C
Original code is only for PMD migration entry, it is revised to
support PMD swap mapping.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johannes Weiner
Cc: Shaohua Li
Cc: Hugh Dickins
Cc: Minchan Kim
Cc: Rik van Riel
Cc: Dave Hansen
Cc: N
During mincore(), for PMD swap mapping, swap cache will be looked up.
If the resulting page isn't compound page, the PMD swap mapping will
be split and fallback to PTE swap mapping processing.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johan
During MADV_WILLNEED, for a PMD swap mapping, if THP swapin is enabled
for the VMA, the whole swap cluster will be swapin. Otherwise, the
huge swap cluster and the PMD swap mapping will be split and fallback
to PTE swap mapping.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea A
For a PMD swap mapping, zap_huge_pmd() will clear the PMD and call
free_swap_and_cache() to decrease the swap reference count and maybe
free or split the huge swap cluster and the THP in swap cache.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc:
During swapoff, for a huge swap cluster, we need to allocate a THP,
read its contents into the THP and unuse the PMD and PTE swap mappings
to it. If failed to allocate a THP, the huge swap cluster will be
split.
During unuse, if it is found that the swap cluster mapped by a PMD
swap mapping is sp
When madvise_free() found a PMD swap mapping, if only part of the huge
swap cluster is operated on, the PMD swap mapping will be split and
fallback to PTE swap mapping processing. Otherwise, if all huge swap
cluster is operated on, free_swap_and_cache() will be called to
decrease the PMD swap mapp
Previously the huge swap cluster will be split after the THP is
swapout. Now, to support to swapin the THP in one piece, the huge
swap cluster will not be split after the THP is reclaimed. So in
memcg, we need to move the swap account for PMD swap mappings in the
process's page table.
When the p
A huge PMD need to be split when zap a part of the PMD mapping etc.
If the PMD mapping is a swap mapping, we need to split it too. This
patch implemented the support for this. This is similar as splitting
the PMD page mapping, except we need to decrease the PMD swap mapping
count for the huge swa
Swapin a THP as a whole isn't desirable in some situations. For
example, for completely random access pattern, swapin a THP in one
piece will inflate the reading greatly. So a sysfs interface:
/sys/kernel/mm/transparent_hugepage/swapin_enabled is added to
configure it. Three options as follow ar
To swapin a THP in one piece, we need to read a huge swap cluster from
the swap device. This patch revised the __read_swap_cache_async() and
its callers and callees to support this. If __read_swap_cache_async()
find the swap cluster of the specified swap entry is huge, it will try
to allocate a T
2 new /proc/vmstat fields are added, "thp_swapin" and
"thp_swapin_fallback" to count swapin a THP from swap device in one
piece and fallback to normal page swapin.
Signed-off-by: "Huang, Ying"
Cc: "Kirill A. Shutemov"
Cc: Andrea Arcangeli
Cc: Michal Hocko
Cc: Johannes Weiner
Cc: Shaohua Li
C
With this patch, when page fault handler find a PMD swap mapping, it
will swap in a THP in one piece. This avoids the overhead of
splitting/collapsing before/after the THP swapping. And improves the
swap performance greatly for reduced page fault count etc.
do_huge_pmd_swap_page() is added in th
Previously, during swapout, all PMD page mapping will be split and
replaced with PTE swap mapping. And when clearing the SWAP_HAS_CACHE
flag for the huge swap cluster in put_swap_page(), the huge swap
cluster will be split. Now, during swapout, the PMD page mappings to
the THP will be changed to
When splitting a THP in swap cache or failing to allocate a THP when
swapin a huge swap cluster, the huge swap cluster will be split. In
addition to clear the huge flag of the swap cluster, the PMD swap
mapping count recorded in cluster_count() will be set to 0. But we
will not touch PMD swap map
Hi, Andrew, could you help me to check whether the overall design is
reasonable?
Hi, Hugh, Shaohua, Minchan and Rik, could you help me to review the
swap part of the patchset? Especially [02/21], [03/21], [04/21],
[05/21], [06/21], [07/21], [08/21], [09/21], [10/21], [11/21],
[12/21], [20/21], [2
The part of __swap_duplicate() with lock held is separated into a new
function __swap_duplicate_locked(). Because we will add more logic
about the PMD swap mapping into __swap_duplicate() and keep the most
PTE swap mapping related logic in __swap_duplicate_locked().
Just mechanical code refactori
To support to swapin the THP in one piece, we need to create PMD swap
mapping during swapout, and maintain PMD swap mapping count. This
patch implements the support to increase the PMD swap mapping
count (for swapout, fork, etc.) and set SWAP_HAS_CACHE flag (for
swapin, etc.) for a huge swap clus
Currently, "the swap entry" in the page tables is used for a number of
things outside of actual swap, like page migration, etc. We support
the THP/PMD "swap entry" for page migration currently and the
functions behind this are tied to page migration's config
option (CONFIG_ARCH_ENABLE_THP_MIGRATIO
On 09/12/2018 04:29 AM, David Howells wrote:
kernel test robot wrote:
[ 18.568403] nfs_fs_mount+0x901/0x1220
I don't suppose you can tell me what file and line number this corresponds to?
$ faddr2line vmlinux nfs_fs_mount+0x901
nfs_fs_mount+0x901/0x1218:
nfs_parse_devname at fs/nfs/sup
Hello,
This is Daniel Murray and i am from Sinara Group Co.Ltd Group Co.,LTD in Russia.
We are glad to know about your company from the web and we are interested in
your products.
Could you kindly send us your Latest catalog and price list for our trial order.
Best Regards,
Daniel Murray
Purcha
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