Added nest imc metric events.
Signed-off-by: Kajol Jain
---
.../arch/powerpc/power9/nest_metrics.json | 35 +++
1 file changed, 35 insertions(+)
diff --git a/tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
b/tools/perf/pmu-events/arch/powerpc/power9/nest_metrics
On Fri, Jul 03, 2020 at 05:32:56AM +, Damien Le Moal wrote:
On 2020/07/03 0:42, Kanchan Joshi wrote:
zone-append with bvec iov_iter gives WARN_ON, and returns -EINVAL.
Add new helper to process such iov_iter and add pages in bio honoring
zone-append specific constraints.
Signed-off-by: Kanc
On 2020-07-03 05:14, Ezequiel Garcia wrote:
> Hi Jonas,
>
> Thanks for working on this.
>
> On Wed, 2020-07-01 at 21:56 +, Jonas Karlman wrote:
>> Add an optional validate_fmt operation that is used to validate the
>> pixelformat of CAPTURE buffers.
>>
>> This is used in next patch to ensure
From: Daeho Jeong
Added a symbolic link to directory of sysfs. It will
create a symbolic link such as "mount_0" and "mount_1" to
each f2fs mount in the order of mounting filesystem. But
once one mount point was umounted, that sequential number
@x in "mount_@x" could be reused by later newly mount
On 06/25/2020 12:59 AM, Jakub Kicinski wrote:
On Wed, 24 Jun 2020 06:32:36 + Christian Benvenuti (benve) wrote:
We/Cisco will also look into it, hopefully a small code reorg will be
sufficient.
Hi, Christian:
I have seen some submissions and codes, and feel that spin_lock is unnecessar
Hi Abhishek,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on tip/auto-latest]
[also build test WARNING on linux/master tip/x86/core kvm/linux-next
linus/master v5.8-rc3 next-20200702]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And
On Fri, July 3, 2020 3:02 AM, Jes Sorensen wrote:
> On 6/29/20 9:01 AM, Roy Im wrote:
> > Adds support for the Dialog DA7280 LRA/ERM Haptic Driver with multiple
> > mode and integrated waveform memory and wideband support.
> > It communicates via an I2C bus to the device.
> >
> > Signed-off-by: Ro
On 2020/07/03 5:01 Rob Herring
>
> Please check and re-submit.
Thanks, will fix it in v2.
Hi Alex,
> From: Alex Williamson
> Sent: Friday, July 3, 2020 5:20 AM
>
> On Wed, 24 Jun 2020 01:55:22 -0700
> Liu Yi L wrote:
>
> > Nesting translation allows two-levels/stages page tables, with 1st
> > level for guest translations (e.g. GVA->GPA), 2nd level for host
> > translations (e.g. GP
Hi
thanks for improving the driver.
Am 02.07.20 um 14:54 schrieb Tian Tao:
> fixed the following warning:
> hibmc_drm_drv.c:296:1-18:WARNING: Assignment of 0/1 to bool variable.
> hibmc_drm_drv.c:301:2-19: WARNING: Assignment of 0/1 to bool variable.
>
> Signed-off-by: Tian Tao
> ---
> drivers
We have tried to steer away from kernel command line args for a few reasons.
I am paraphrasing my colleague Doug's argument here (CC'ed him as well) -
- The command line args are getting unwieldy. Kernel command line
parameters are not a scalable way to set kernel config. It's intended
as a super
On Sat, Jun 27, 2020 at 10:38 PM Changbin Du wrote:
>
> This adds an option '--graph-noirqs' to filter out functions executed
> in irq context.
Ditto.
>
> Signed-off-by: Changbin Du
>
> ---
> v2: option name '--nofuncgraph-irqs' -> '--graph-noirqs'.
> ---
> tools/perf/Documentation/perf-ftrace
[Cc Andrew - the patch is
http://lkml.kernel.org/r/1593641660-13254-2-git-send-email-bhsha...@redhat.com]
On Thu 02-07-20 08:00:27, Michal Hocko wrote:
> On Thu 02-07-20 03:44:19, Bhupesh Sharma wrote:
> > Prabhakar reported an OOPS inside mem_cgroup_get_nr_swap_pages()
> > function in a corner c
On Sat, Jun 27, 2020 at 10:38 PM Changbin Du wrote:
>
> This adds an option '--graph-nosleep-time' which allow us only to measure
> on-CPU time. This option is function_graph tracer only.
I'd suggest --graph-sleep-time instead and set it by default.
Then we can have --no-graph-sleep-time as well.
Add freescale USB PHY driver entry
Signed-off-by: Peter Chen
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 496fd4eafb68..3d3779a5ef9d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6970,6 +6970,13 @@ L: linuxppc-...@lists.ozlabs.
Am 03.07.20 um 00:08 schrieb Alexei Starovoitov:
On Thu, Jul 2, 2020 at 1:05 PM Alexander A. Klimov
wrote:
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
From: Zhang Qiang
The queuing_blocked func should returns true when the worker
being destroyed.
Signed-off-by: Zhang Qiang
---
kernel/kthread.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 1166f2043e67..2ca711d0e78a 100644
--- a/
On Thu 02-07-20 08:22:22, Shakeel Butt wrote:
[...]
> Interface options:
> --
>
> 1) memcg interface e.g. 'echo 10M > memory.reclaim'
>
> + simple
> + can be extended to target specific type of memory (anon, file, kmem).
> - most probably restricted to cgroup v2.
>
> 2) fadvise(P
On Fri, Jul 3, 2020 at 9:14 AM Muchun Song wrote:
>
> When we are in the interrupt context, it is irrelevant to the
> current task context. If we use current task's mems_allowed, we
> can fair to alloc pages in the fast path and fall back to slow
> path memory allocation when the current node(whic
On 07/02/2020 07:37 PM, Catalin Marinas wrote:
> On Thu, Jun 18, 2020 at 06:45:29AM +0530, Anshuman Khandual wrote:
>> There are many instances where vmemap allocation is often switched between
>> regular memory and device memory just based on whether altmap is available
>> or not. vmemmap_alloc
From: Zhang Qiang
When canceling a work, if it is found that the work is in
the cancelling state, we should directly exit the cancelled
operation.
Signed-off-by: Zhang Qiang
---
kernel/kthread.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/kthread.c b/kernel/kthread.c
index bf
On Sat, Jun 27, 2020 at 10:38 PM Changbin Du wrote:
>
> This adds support to display call trace for function tracer. To do this,
> just specify a '--func-call-graph' option.
What if it's used with -G option? Also it might be used only with
the -T option.. How about showing a warning if it's mis
On Wed, Jul 01, 2020 at 03:36:55PM +0200, Greg Kroah-Hartman wrote:
> On Fri, Jun 19, 2020 at 04:50:26PM +0530, Vaibhav Agarwal wrote:
> > Currently you can't enable the Gey Bus Audio Codec because there is no
> > entry for it in the Kconfig file. Originally the config name was going
> > to be AUDI
Hi Alex,
> From: Alex Williamson
> Sent: Friday, July 3, 2020 5:19 AM
>
> On Wed, 24 Jun 2020 01:55:19 -0700
> Liu Yi L wrote:
>
> > This patch allows user space to request PASID allocation/free, e.g.
> > when serving the request from the guest.
> >
> > PASIDs that are not freed by userspace a
On Thu, 2020-07-02 at 10:31 +1000, Alexey Kardashevskiy wrote:
>
> On 02/07/2020 09:48, Leonardo Bras wrote:
> > On Wed, 2020-07-01 at 16:57 -0300, Leonardo Bras wrote:
> > > > It is not necessarily "direct" anymore as the name suggests, you may
> > > > want to change that. DMA64_PROPNAME, may be.
On Fri, Jul 03, 2020 at 05:29:50AM +, Damien Le Moal wrote:
On 2020/07/03 0:42, Kanchan Joshi wrote:
avoid returning success when it should report failure, preventing
odd behavior in caller.
You can be more precise here: the odd behavior is an infinite loop in
bio_iov_iter_get_pages() whci
On 6/25/20 7:38 PM, Ian Rogers wrote:
> On Thu, Jun 25, 2020 at 4:47 AM Kajol Jain wrote:
>>
>> Set up the "PerChip" field so that perf knows they are
>> per chip events.
>>
>> Set up the "PerCore" field so that perf knows they are
>> per core events and add these fields to pmu_event structur
On LoPAR "DMA Window Manipulation Calls", it's recommended to remove the
default DMA window for the device, before attempting to configure a DDW,
in order to make the maximum resources available for the next DDW to be
created.
This is a requirement for using DDW on devices in which hypervisor
allo
On Sat, Jun 27, 2020 at 10:38 PM Changbin Du wrote:
>
> This makes perf-ftrace display column header before printing trace.
>
> $ sudo perf ftrace
> \# tracer: function
> \#
> \# entries-in-buffer/entries-written: 0/0 #P:8
> \#
> \# TASK-PID CPU# TIMESTAMP FUNCTION
> \#
As of today, if the biggest DDW that can be created can't map the whole
partition, it's creation is skipped and the default DMA window
"ibm,dma-window" is used instead.
Usually this DDW is bigger than the default DMA window, and it performs
better, so it would be nice to use it instead.
The ddw c
Move the window-removing part of remove_ddw into a new function
(remove_dma_window), so it can be used to remove other DMA windows.
It's useful for removing DMA windows that don't create DIRECT64_PROPNAME
property, like the default DMA window from the device, which uses
"ibm,dma-window".
Signed-o
A previous change introduced the usage of DDW as a bigger indirect DMA
mapping when the DDW available size does not map the whole partition.
As most of the code that manipulates direct mappings was reused for
indirect mappings, it's necessary to rename all names and debug/info
messages to reflect
On 2020/7/3 12:19, Daeho Jeong wrote:
> From: Daeho Jeong
>
> Added a symbolic link to directory of sysfs. It will
> create a symbolic link such as "mount_0" and "mount_1" to
> each f2fs mount in the order of mounting filesystem. But
> once one mount point was umounted, that sequential number
> @
>From LoPAR level 2.8, "ibm,ddw-extensions" index 3 can make the number of
outputs from "ibm,query-pe-dma-windows" go from 5 to 6.
This change of output size is meant to expand the address size of
largest_available_block PE TCE from 32-bit to 64-bit, which ends up
shifting page_size and migration_
There are some devices in which a hypervisor may only allow 1 DMA window
to exist at a time, and in those cases, a DDW is never created to them,
since the default DMA window keeps using this resource.
LoPAR recommends this procedure:
1. Remove the default DMA window,
2. Query for which configs the
Create defines to help handling ibm,ddw-applicable values, avoiding
confusion about the index of given operations.
Signed-off-by: Leonardo Bras
---
arch/powerpc/platforms/pseries/iommu.c | 43 --
1 file changed, 26 insertions(+), 17 deletions(-)
diff --git a/arch/powerpc
+Alan, Haotian
On 7/2/2020 11:01 PM, Mathieu Poirier wrote:
> On Thu, 2 Jul 2020 at 03:51, Michael S. Tsirkin wrote:
>>
>> On Thu, Jul 02, 2020 at 01:51:21PM +0530, Kishon Vijay Abraham I wrote:
>>> This series enhances Linux Vhost support to enable SoC-to-SoC
>>> communication over MMIO. This se
On Sat, Jun 27, 2020 at 10:38 PM Changbin Du wrote:
>
> This adds an option '-m/--buffer-size' to allow us set the size of per-cpu
> tracing buffer.
>
> Signed-off-by: Changbin Du
> ---
[SNIP]
> @@ -555,6 +575,8 @@ int cmd_ftrace(int argc, const char **argv)
> "Max depth for f
Until now, the devfreq driver using polling mode like simple_ondemand
governor have used only deferrable timer for reduing the redundant
power consumption. It reduces the CPU wake-up from idle due to polling mode
which check the status of Non-CPU device.
But, it has a problem for Non-CPU device li
Add the delayed timer to devfreq framework in order to support
the periodical polling mode without stop caused by CPU idle state.
Some Non-CPU device must need to monitor the device status like
utilization regardless of CPU state.
- patch1 explains the detailed reason why the delayed timer is requ
Use delayed timer as default instead of deferrable timer
in order to monitor the DMC status regardless of CPU idle.
Signed-off-by: Chanwoo Choi
---
drivers/memory/samsung/exynos5422-dmc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/memory/samsung/exynos5422-dmc.c
b/drivers/memor
When we are in the interrupt context, it is irrelevant to the
current task context. If we use current task's mems_allowed, we
can fair to alloc pages in the fast path and fall back to slow
path memory allocation when the current node(which is the current
task mems_allowed) does not have enough memo
The pull request you sent on Thu, 2 Jul 2020 22:47:33 +0200:
> g...@gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux
> tags/for-linus-2020-07-02
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/45564bcd57046ebe8c9309527c114dcd042cb7e5
Thank you!
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The pull request you sent on Thu, 2 Jul 2020 15:39:24 -0600:
> git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git
> tags/devicetree-fixes-for-5.8-2
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/684c8ccc40d7e5408d597a43712bad3827d3fb94
Thank you!
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The pull request you sent on Fri, 3 Jul 2020 08:21:59 +1000:
> git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git
> tags/m68knommu-for-v5.8-rc4
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/cdd3bb54332f82295ed90cd0c09c78cd0c0ee822
Thank you!
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The pull request you sent on Thu, 2 Jul 2020 21:58:13 +0300:
> git://git.infradead.org/users/jjs/linux-tpmdd.git tags/tpmdd-next-v5.8-rc4
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/0c7415c31ea9482c4377287af5f459778bf64d2a
Thank you!
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Hi, Cong Wang
Thank you for taking the time to respond to me.
Do you think the message(i.e. "RCU detect a stall on CPU 2") indicates
there is a lockup.
Cong Wang 于2020年7月1日周三 下午2:07写道：
>
> On Tue, Jun 30, 2020 at 7:49 PM 孙世龙 sunshilong
> wrote:
> >
> > Hi, list
> >
> > My x86 machine(linux4.
Hi Alex,
> From: Alex Williamson
> Sent: Friday, July 3, 2020 5:17 AM
>
> On Wed, 24 Jun 2020 01:55:17 -0700
> Liu Yi L wrote:
>
> > Shared Virtual Addressing (a.k.a Shared Virtual Memory) allows sharing
> > multiple process virtual address spaces with the device for simplified
> > programming
On 02/07/2020 16.14, Peter Ujfalusi wrote:
> The codec is wired in multi DIN/DOUT setup (DIN1/2/3/4/DOUT1/2/3 is
> connected to McASP serializer).
>
> To support wide range of audio features a generic sound card can not be
> used since we need to use different reference clock source for 44.1 an
Hi Alex,
> From: Alex Williamson < alex.william...@redhat.com >
> Sent: Friday, July 3, 2020 2:39 AM
>
> On Wed, 24 Jun 2020 01:55:16 -0700
> Liu Yi L wrote:
>
> > This patch exports iommu nesting capability info to user space through
> > VFIO. User space is expected to check this info for supp
On Thu, Jul 02, 2020 at 11:17:28PM +0200, Pavel Machek wrote:
> Hi!
>
> > commit 6784beada631800f2c5afd567e5628c843362cee upstream.
> >
> > Fix the event trigger to accept redundant spaces in
> > the trigger input.
> >
> > For example, these return -EINVAL
> >
> > echo " traceon" > events/ftrac
On Thu, Jul 02, 2020 at 04:26:35PM -0700, Kees Cook wrote:
> In order to gain access to the open file's f_cred for kallsym visibility
> permission checks, refactor the module section attributes to use the
> bin_attribute instead of attribute interface. Additionally removes the
> redundant "name" st
On 7/2/20 2:14 PM, James Jones wrote:
On 7/2/20 1:22 AM, Daniel Stone wrote:
Hi,
On Wed, 1 Jul 2020 at 20:45, James Jones wrote:
OK, I think I see what's going on. In the Xorg modesetting driver, the
logic is basically:
if (gbm_has_modifiers && DRM_CAP_ADDFB2_MODIFIERS != 0) {
drmModeAd
On Sat, Jun 27, 2020 at 10:37 PM Changbin Du wrote:
>
> This adds an option '-F/--funcs' to list all available functions to trace,
> which is read from tracing file 'available_filter_functions'.
>
> $ sudo ./perf ftrace -F | head
> trace_initcall_finish_cb
> initcall_blacklisted
> do_one_initcall
On Thu, Jul 2, 2020 at 3:50 PM Christoph Hellwig wrote:
>
> Do you have a suggestion for an automated replacement which does?
> I'll happily switch over to that.
I guess I'd simply find the unique set of cases that occur and create
a replacement for each manually. A handful of them or so may alre
On Thu, Jul 02, 2020 at 08:58:40PM +0100, Mark Cave-Ayland wrote:
> On 02/07/2020 14:02, Corentin Labbe wrote:
>
> > The sparc64 qemu machines uses pcnet32 network hardware by default, so for
> > simple boot testing using qemu, having PCNET32 is useful.
> > Same for its storage which is a PATA_CMD
On 6/29/20 11:10 PM, Yonghong Song wrote:
On 6/28/20 1:50 AM, kernel test robot wrote:
Greeting,
FYI, we noticed a -2.5% regression of will-it-scale.per_process_ops
due to commit:
commit: af7ec13833619e17f03aa73a785a2f871da6d66b ("bpf: Add
bpf_skc_to_tcp6_sock() helper")
https://git.
> -Original Message-
> From: David Abdurachmanov
> Sent: 01 July 2020 17:34
> To: Andreas Schwab
> Cc: Yash Shah ; devicet...@vger.kernel.org; Albert
> Ou ; Atish Patra ; Anup
> Patel ; lolliv...@baylibre.com; linux-
> ker...@vger.kernel.org List ; Green Wan
> ; Sachin Ghadi ;
> robh...@k
On 7/2/20 8:48 PM, Chris Ruehl wrote:
> Add documentation for the newly added DTS support in the shtc1 driver.
>
> Signed-off-by: Chris Ruehl
> ---
> .../bindings/hwmon/sensirion,shtc1.yaml | 53 +++
> 1 file changed, 53 insertions(+)
> create mode 100644
> Documentation/
Hi Bartosz,
I love your patch! Yet something to improve:
[auto build test ERROR on iio/togreg]
[also build test ERROR on staging/staging-testing v5.8-rc3 next-20200702]
[cannot apply to xlnx/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch
Hi Alim,
I love your patch! Perhaps something to improve:
[auto build test WARNING on robh/for-next]
[also build test WARNING on soc/for-next linus/master v5.8-rc3 next-20200702]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use
On 7/2/20 8:48 PM, Chris Ruehl wrote:
> Add support for DTS bindings to the shtc driver, use CONFIG_OF
> to compile in the code if needed.
>
Ah, here it is. The introducing patch should say something like "[PATCH 0/2]".
> Signed-off-by: Chris Ruehl
> ---
> drivers/hwmon/shtc1.c | 30 ++
Hello,
On Sat, Jun 27, 2020 at 10:37 PM Changbin Du wrote:
>
> The '-g/-G' options have already implied function_graph tracer should be
> used instead of function tracer. So the extra option '--tracer' can be
> killed.
>
> This patch changes the behavior as below:
> - By default, function trace
On Thu, Jul 2, 2020 at 1:51 PM Christian Brauner
wrote:
>
> A few comments on this since doing a grep data_race() reveals that currently
> only kernel/rcu/* is making use of this new annotation and this seems to be
> the
> first annotation in core kernel: when this was first sent to me I was
> o
Hi Lee,
I love your patch! Perhaps something to improve:
[auto build test WARNING on usb/usb-testing]
[also build test WARNING on balbi-usb/testing/next char-misc/char-misc-testing
v5.8-rc3 next-20200702]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when
The pull request you sent on Thu, 2 Jul 2020 10:26:58 -0600:
> git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
> tags/linux-kselftest-fixes-5.8-rc4
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/0dce88451f9c1cc5f1b73818e0608d5f84499e9a
Thank you!
The pull request you sent on Thu, 2 Jul 2020 09:23:55 -0600:
> git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
> tags/linux-kselftest-kunit-fixes-5.8-rc4
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/55844741a1e74bd41b4cea57502c2efedc99bf47
Thank
The pull request you sent on Thu, 2 Jul 2020 11:10:39 -0400:
> git://linux-nfs.org/~bfields/linux.git tags/nfsd-5.8-1
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/083176c86ffae8c9b467358eca5ba05a54a27898
Thank you!
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* This automated bisection report was sent to you on the basis *
* that you may be involved with the breaking commit it has *
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* and the root cause of the problem
Hi Danny,
On Fri, Jul 3, 2020 at 2:16 AM Danny Lin wrote:
>
> +[*]
> +charset = utf-8
> +end_of_line = lf
While UTF-8 and LF are probably OK for all files, I am not 100% sure about:
> +insert_final_newline = true
> +indent_style = tab
> +indent_size = 8
for other languages and non-code files w
On 7/2/20 8:48 PM, Chris Ruehl wrote:
> Add support for DTS bindings to the shtc driver
> The patches add the compatible table and of_property_read* to the
> shtc1.c. Newly created Yaml document has been released to the
> Documentation/devicetree/hwmon/sensirion,shtc1.yaml
>
> Signed-off-by: Chris
On Thu, Jul 2, 2020 at 8:30 PM Yu-Hsuan Hsu wrote:
>
> Log results of failed EC commands to identify a problem more easily.
>
> Signed-off-by: Yu-Hsuan Hsu
> ---
> sound/soc/codecs/cros_ec_codec.c | 9 -
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/sound/soc/codecs/c
On 2020/07/03 0:42, Kanchan Joshi wrote:
> zone-append with bvec iov_iter gives WARN_ON, and returns -EINVAL.
> Add new helper to process such iov_iter and add pages in bio honoring
> zone-append specific constraints.
>
> Signed-off-by: Kanchan Joshi
> Signed-off-by: Selvakumar S
> Signed-off-by
Am 2020-07-02 um 3:10 p.m. schrieb Fenghua Yu:
> Hi, Felix, Thomas, Joerg and maintainers,
>
> On Tue, Jun 30, 2020 at 10:12:38PM -0400, Felix Kuehling wrote:
>> Am 2020-06-30 um 7:44 p.m. schrieb Fenghua Yu:
>> You didn't change the return types of amdgpu_pasid_alloc and
>> kfd_pasid_alloc. amdgpu
On 2020-07-03 04:54, Ezequiel Garcia wrote:
> On Wed, 2020-07-01 at 21:56 +, Jonas Karlman wrote:
>> The Rockchip Video Decoder used in RK3399 supports H.264 profiles from
>> Baseline to High 4:2:2 up to Level 5.1, except for the Extended profile.
>>
>> Expose the V4L2_CID_MPEG_VIDEO_H264_PROFI
On 2020/07/03 0:42, Kanchan Joshi wrote:
> avoid returning success when it should report failure, preventing
> odd behavior in caller.
You can be more precise here: the odd behavior is an infinite loop in
bio_iov_iter_get_pages() whcih is is the only user of
__bio_iov_append_get_pages().
>
> Si
Le 03/07/2020 à 05:17, Michael Ellerman a écrit :
Christophe Leroy writes:
Le 02/07/2020 à 15:34, Michael Ellerman a écrit :
Linus Torvalds writes:
On Wed, Jul 1, 2020 at 12:59 PM Al Viro wrote:
On Wed, Jul 01, 2020 at 12:04:36PM -0700, Linus Torvalds wrote:
That's actually for the ac
Hi Bhupesh,
On 2020/7/3 3:22, Bhupesh Sharma wrote:
> Hi Will,
>
> On Thu, Jul 2, 2020 at 1:20 PM Will Deacon wrote:
>> On Thu, Jul 02, 2020 at 03:44:20AM +0530, Bhupesh Sharma wrote:
>>> commit bff3b04460a8 ("arm64: mm: reserve CMA and crashkernel in
>>> ZONE_DMA32") allocates crashkernel for a
Hi Palmer,
Le 7/1/20 à 2:27 PM, Palmer Dabbelt a écrit :
On Wed, 03 Jun 2020 01:10:56 PDT (-0700), a...@ghiti.fr wrote:
This patchset implements sv48 support at runtime. The kernel will try to
boot with 4-level page table and will fallback to 3-level if the HW
does not
support it.
The bigges
>
> However, it is still much more clear and credible to users by exposing the
> data
> directly from ACPI table.
>
Except ARM64 iort, numa_node is actually also applicable to x86 and other
architectures through general
acpi_create_platform_device() API:
drivers/acpi/scan.c:
static void acpi
On 03.07.20 00:59, Boris Ostrovsky wrote:
On 7/1/20 7:06 AM, Juergen Gross wrote:
Xen is requiring 64-bit machines today and since Xen 4.14 it can be
built without 32-bit PV guest support. There is no need to carry the
burden of 32-bit PV guest support in the kernel any longer, as new
guests can
Hi Ondrej.
> > My bot found errors running 'make dt_binding_check' on your patch:
> >
> > /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/bridge/nwl-dsi.example.dt.yaml:
> > panel@0: '#address-cells', '#size-cells', 'port@0' do not match any of the
> > regexes: 'pin
As func comments mentioned, few isolated page missing be tolerated.
So why not do further to drop the unlikely double check. That won't
cause more idle pages, but reduce a lock contention.
This is also a preparation for later new page isolation feature.
Signed-off-by: Alex Shi
Cc: Andrew Morton
Hugh Dickins' found a memcg change bug on original version:
If we want to change the pgdat->lru_lock to memcg's lruvec lock, we have
to serialize mem_cgroup_move_account during pagevec_lru_move_fn. The
possible bad scenario would like:
cpu 0 cpu 1
lruvec =
This patch moves per node lru_lock into lruvec, thus bring a lru_lock for
each of memcg per node. So on a large machine, each of memcg don't
have to suffer from per node pgdat->lru_lock competition. They could go
fast with their self lru_lock.
After move memcg charge before lru inserting, page iso
From: Hugh Dickins
Since we changed the pgdat->lru_lock to lruvec->lru_lock, it's time to
fix the incorrect comments in code. Also fixed some zone->lru_lock comment
error from ancient time. etc.
Signed-off-by: Hugh Dickins
Signed-off-by: Alex Shi
Cc: Andrew Morton
Cc: Tejun Heo
Cc: Andrey Ry
This patch reorder the isolation steps during munlock, move the lru lock
to guard each pages, unfold __munlock_isolate_lru_page func, to do the
preparation for lru lock change.
__split_huge_page_refcount doesn't exist, but we still have to guard
PageMlocked and PageLRU in __split_huge_page_tail, t
The compact_deferred is a defer suggestion check, deferring action does in
defer_compaction not here. so, better rename it to avoid confusing.
Signed-off-by: Alex Shi
Cc: Steven Rostedt
Cc: Ingo Molnar
Cc: Andrew Morton
Cc: Vlastimil Babka
Cc: Mike Kravetz
Cc: linux-kernel@vger.kernel.org
Cc
This is a new version which bases on v5.8-rc3.
Current lru_lock is one for each of node, pgdat->lru_lock, that guard for
lru lists, but now we had moved the lru lists into memcg for long time. Still
using per node lru_lock is clearly unscalable, pages on each of memcgs have
to compete each others
Fold the PGROTATED event collection into pagevec_move_tail_fn call back
func like other funcs does in pagevec_lru_move_fn. Now all usage of
pagevec_lru_move_fn are same and no needs of the 3rd parameter.
It's simply the calling.
[l...@intel.com: found a build issue in the original patch, thanks]
This patch move lru_lock into lru_note_cost. It's a bit ugly and may
cost more locking, but it's necessary for later per pgdat lru_lock to
per memcg lru_lock change.
Signed-off-by: Alex Shi
Cc: Johannes Weiner
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
---
mm/swa
From: Hugh Dickins
Use the relock function to replace relocking action. And try to save few
lock times.
Signed-off-by: Hugh Dickins
Signed-off-by: Alex Shi
Cc: Andrew Morton
Cc: Tejun Heo
Cc: Andrey Ryabinin
Cc: Jann Horn
Cc: Mel Gorman
Cc: Johannes Weiner
Cc: Matthew Wilcox
Cc: Hugh Di
Now pgdat.lru_lock was replaced by lruvec lock. It's not used anymore.
Signed-off-by: Alex Shi
Cc: Andrew Morton
Cc: Konstantin Khlebnikov
Cc: Hugh Dickins
Cc: Johannes Weiner
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Cc: cgro...@vger.kernel.org
---
include/linux/mmzone.h | 1 -
Add a debug checking in lock_page_memcg, then we could get alarm
if anything wrong here.
Suggested-by: Johannes Weiner
Signed-off-by: Alex Shi
Cc: Johannes Weiner
Cc: Michal Hocko
Cc: Vladimir Davydov
Cc: Andrew Morton
Cc: cgro...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.
It's a clean up patch w/o function changes.
Signed-off-by: Alex Shi
Cc: Johannes Weiner
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
---
mm/memory.c | 3 ---
mm/swap.c | 2 ++
mm/swap_state.c | 2 --
mm/workingset.c | 2 --
4 files changed, 2 insertions(+
Use this new function to replace repeated same code.
Signed-off-by: Alex Shi
Cc: Johannes Weiner
Cc: Andrew Morton
Cc: Thomas Gleixner
Cc: Andrey Ryabinin
Cc: Matthew Wilcox
Cc: Mel Gorman
Cc: Konstantin Khlebnikov
Cc: Hugh Dickins
Cc: Tejun Heo
Cc: linux-kernel@vger.kernel.org
Cc: cgro.
Johannes Weiner has suggested:
"So here is a crazy idea that may be worth exploring:
Right now, pgdat->lru_lock protects both PageLRU *and* the lruvec's
linked list.
Can we make PageLRU atomic and use it to stabilize the lru_lock
instead, and then use the lru_lock only serialize list operations?
Combine PageLRU check and ClearPageLRU into a function by new
introduced func TestClearPageLRU. This function will be used as page
isolation precondition to prevent other isolations some where else.
Then there are may non PageLRU page on lru list, need to remove BUG
checking accordingly.
Hugh Dick
We don't have to add a freeable page into lru and then remove from it.
This change saves a couple of actions and makes the moving more clear.
The SetPageLRU needs to be kept here for list intergrity.
Otherwise:
#0 mave_pages_to_lru #1 release_pages
The func is only used in huge_memory.c, defining it in other file with a
CONFIG_TRANSPARENT_HUGEPAGE macro restrict just looks weird.
Let's move it THP. And make it static as Hugh Dickin suggested.
Signed-off-by: Alex Shi
Cc: Andrew Morton
Cc: Johannes Weiner
Cc: Matthew Wilcox
Cc: Hugh Dicki
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