Provide functions to copy page-table entries from the kernel page-table
to a decorated page-table for a specified VA range. These functions are
based on the copy_pxx_range() functions defined in mm/memory.c. A first
difference is that a level parameter can be specified to indicate the
page-table le
Fix inconsistent IS_ERR and PTR_ERR in __reloc_gpu_alloc().
The proper pointer to be passed as argument is ce.
This bug was detected with the help of Coccinelle.
Fixes: 6f576d6277ce ("drm/i915/gem: Try an alternate engine for relocations")
Signed-off-by: Gustavo A. R. Silva
---
drivers/gpu/drm
Add functions to keep track of VA ranges mapped in a decorated page-table.
This will be used when unmapping to ensure the same range is unmapped,
at the same page-table level. This will also be used to handle mapping
and unmapping of overlapping VA ranges.
Signed-off-by: Alexandre Chartre
---
ar
This is prep work for initial support of bonding hardware encryption
pass-through support. The bonding driver will fill in the slave_dev
pointer, and we use that to know not to skb_push() again on a given
skb that was already processed on the bond device.
CC: Jay Vosburgh
CC: Veaceslav Falico
CC
>>> the related system resources were not released when pci_iomap() return
>>> error in the rtw_pci_io_mapping() function. add pci_release_regions() to
>>> fix it.
>>
>> How do you think about a wording variant like the following?
>>
>>Subject:
>>[PATCH v2] net: rtw88: Complete exception ha
This is an initial "proof of concept" functional implementation for doing
pass-through of hardware encryption from bonding device to capable slaves.
This was tested using an ixgbe-driven Intel x520 NIC with libreswan and a
transport mode connection, on top of an active-backup bond, using netperf
an
Slave devices in a bond doing hardware encryption also need to be aware
that they're slaves, so we operate on the slave instead of the bonding
master to do the actual hardware encryption offload bits.
CC: Jay Vosburgh
CC: Veaceslav Falico
CC: Andy Gospodarek
CC: "David S. Miller"
CC: Jeff Kirs
Add helper functions to easily map a module into a decorated page-table.
Signed-off-by: Alexandre Chartre
---
arch/x86/include/asm/dpt.h | 21 +
1 file changed, 21 insertions(+)
diff --git a/arch/x86/include/asm/dpt.h b/arch/x86/include/asm/dpt.h
index 85d2c5051acb..5a38d97a
This is part II of ASI RFC v4. Please refer to the cover letter of
part I for an overview the ASI RFC.
https://lore.kernel.org/lkml/20200504144939.11318-1-alexandre.char...@oracle.com/
This part introduces decorated page-table which encapsulate native page
table (e.g. a PGD) in order to provid
On Mon 04-05-20 07:53:01, Shakeel Butt wrote:
> On Mon, May 4, 2020 at 7:11 AM Michal Hocko wrote:
> >
> > On Mon 04-05-20 06:54:40, Shakeel Butt wrote:
> > > On Sun, May 3, 2020 at 11:56 PM Michal Hocko wrote:
> > > >
> > > > On Thu 30-04-20 11:27:12, Shakeel Butt wrote:
> > > > > Lowering memor
Provide functions to copy page-table entries from the kernel page-table
to a decorated page-table for a percpu buffer. A percpu buffer have a
different VA range for each cpu and all them have to be copied.
Signed-off-by: Alexandre Chartre
---
arch/x86/include/asm/dpt.h | 6 ++
arch/x86/mm/d
Provide functions to clear page-table entries in a decorated page-table
for a specified VA range. Functions also check that the clearing
effectively happens in the decorated page-table and there is no crossing
of the decorated page-table boundary (through references to another page
table), so that
Core mappings are the minimal mappings we need to be able to
enter isolation and handle an isolation abort or exit. This
includes the kernel code, the GDT and the percpu ASI sessions.
We also need a stack so we map the current stack when entering
isolation and unmap it on exit/abort.
Signed-off-by
Currently, this support is limited to active-backup mode, as I'm not sure
about the feasilibity of mapping an xfrm_state's offload handle to
multiple hardware devices simultaneously, and we rely on being able to
pass some hints to both the xfrm and NIC driver about whether or not
they're operating
Hello Suresh, Niklas,
I think that we should not change the structs for PHTW register configuration,
because there are no "max" values in the table "PHTW Set Values" from the
Renesas Hardware Manual. The patch looks just wrong. A major issue is also
that the Hardware Manual does not provide any al
On 04/05/2020 17.03, Christoph Hellwig wrote:
+#define __part_stat_add(part, field, addnd)\
+ (part_stat_get(part, field) += (addnd))
Just open coding part_stat_get for the UP side would seems a little
easier to read.
If rewrite filed definition as
#ifdef C
On Mon, May 04, 2020 at 08:06:30AM -0600, Alex Williamson wrote:
> On Fri, 1 May 2020 20:50:33 -0300
> Jason Gunthorpe wrote:
>
> > On Fri, May 01, 2020 at 03:39:08PM -0600, Alex Williamson wrote:
> > > With conversion to follow_pfn(), DMA mapping a PFNMAP range depends on
> > > the range being f
Add a function to remap an already mapped buffer with a new address in
a decorated page-table: the already mapped buffer is unmapped, and a
new mapping is added for the specified new address.
This is useful to track and remap a buffer which can be freed and
then reallocated.
Signed-off-by: Alexan
Add functions to track buffers allocated for a decorated page-table.
A page-table can have direct references to the kernel page table, at
different levels (PGD, P4D, PUD, PMD). When freeing a page-table, we
should make sure that we free parts actually allocated for the decorated
page-table, and not
Add a sequence to test if an ASI remains active after it is
scheduled out and then scheduled back in.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asidrv.c | 98
drivers/staging/asi/asidrv.h | 2 +
2 files changed, 100 insertions(+)
diff --git a
Add options to the asicmd CLI to list, add and clear ASI mapped
VA ranges.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asicmd.c | 243 +++
1 file changed, 243 insertions(+)
diff --git a/drivers/staging/asi/asicmd.c b/drivers/staging/asi/asicmd.c
inde
Introduce the infrastructure for the ASI driver. This driver is meant
for testing ASI. It creates a test ASI, and will allow to run some
test sequences on this ASI.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/Makefile | 7 ++
drivers/staging/asi/asidrv.c | 129
When mapping a buffer in a decorated page-table, data around the buffer can
also be mapped if the entire buffer is not aligned with the page directory
size used for the mapping. So, data can potentially leak into the decorated
page-table. In such a case, print a warning that data are leaking.
Also
Add a sequence to test if an ASI remains active after receiving
an interrupt which is itself interrupted by an NMI.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asidrv.c | 62 +++-
drivers/staging/asi/asidrv.h | 1 +
2 files changed, 62 insertions(+),
The ASIDRV_IOCTL_RUN_SEQUENCE ioctl runs a specified sequence with
the test ASI. The ioctl returns whether the run was successful or
not, and if the test ASI was active at the end of the run.
For now, two test sequences are implemented:
- ASIDRV_SEQ_NOP does nothing but enters and exits the test
The asicmd command is a userland CLI to interact with the ASI driver
(asidrv), in particular it provides an interface for running ASI
test sequences.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/Makefile | 6 ++
drivers/staging/asi/asicmd.c | 120 +++
Add a sequence to test if an ASI remains active after receiving
an NMI.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asidrv.c | 116 ++-
drivers/staging/asi/asidrv.h | 4 ++
2 files changed, 118 insertions(+), 2 deletions(-)
diff --git a/drivers/sta
Add more options to the asicmd command to test access to map
or unmapped memory buffer, interrupt, NMI, scheduling while
using ASI.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asicmd.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/drivers/staging/asi/asicmd.c b
Define the test ASI type which can be used for testing or experimenting
ASI.
Signed-off-by: Alexandre Chartre
---
arch/x86/include/asm/asi.h | 2 ++
arch/x86/mm/asi.c | 1 +
drivers/staging/Makefile | 1 +
3 files changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/asi.h b/arc
This is part III of ASI RFC v4. Please refer to the cover letter of
part I for an overview the ASI RFC.
https://lore.kernel.org/lkml/20200504144939.11318-1-alexandre.char...@oracle.com/
This part provides a driver and a CLI for testing and introspecting an
ASI. The driver creates a test ASI an
On Mon, May 04, 2020 at 08:20:55AM -0600, Alex Williamson wrote:
> On Fri, 1 May 2020 20:25:50 -0300
> Jason Gunthorpe wrote:
>
> > On Fri, May 01, 2020 at 03:39:19PM -0600, Alex Williamson wrote:
> > > Rather than calling remap_pfn_range() when a region is mmap'd, setup
> > > a vm_ops handler to
Add a sequence to test if an ASI remains active after receiving
an interrupt.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asidrv.c | 144 +--
drivers/staging/asi/asidrv.h | 5 ++
2 files changed, 144 insertions(+), 5 deletions(-)
diff --git a/drive
Add a sequence to test if ASI exit or not when accessing a mapped
or unmapped memory buffer.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asidrv.c | 70
drivers/staging/asi/asidrv.h | 3 ++
2 files changed, 73 insertions(+)
diff --git a/drivers/
Add options to the asicmd CLI to list and clear ASI page faults. Also
add an option to enable/disable displaying stack trace on ASI page
fault.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asicmd.c | 68 ++--
1 file changed, 65 insertions(+), 3 deletio
Add ioctls to list and clear ASI page faults. Also add an ioctl to display
or not stack trace on ASI page fault.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asidrv.c | 88
drivers/staging/asi/asidrv.h | 32 +
2 files changed, 120 inse
Hi Daniel,
On 21/04/2020 18:15, Neil Armstrong wrote:
> Amlogic uses a proprietary lossless image compression protocol and format
> for their hardware video codec accelerators, either video decoders or
> video input encoders.
>
> It considerably reduces memory bandwidth while writing and reading
Add ioctls to list, add, clear ASI mapped VA ranges.
Signed-off-by: Alexandre Chartre
---
drivers/staging/asi/asidrv.c | 138 +++
drivers/staging/asi/asidrv.h | 26 +++
2 files changed, 164 insertions(+)
diff --git a/drivers/staging/asi/asidrv.c b/drivers/st
* Clay McClure [200502 23:41]:
> diff --git a/arch/arm/configs/omap2plus_defconfig
> b/arch/arm/configs/omap2plus_defconfig
> index 3cc3ca5fa027..e00f0d871c53 100644
> --- a/arch/arm/configs/omap2plus_defconfig
> +++ b/arch/arm/configs/omap2plus_defconfig
> @@ -57,7 +57,6 @@ CONFIG_CPUFREQ_DT=m
>
On Mon, May 04, 2020 at 03:25:58PM +0200, Paolo Bonzini wrote:
> On 02/05/20 06:32, Sean Christopherson wrote:
> > A smattering of optimizations geared toward avoiding retpolines, though
> > IMO most of the patches are worthwhile changes irrespective of retpolines.
> > I can split this up into sepa
Increase by one the size of wid_list array as index variable can reach a
value of 5. If this happens, an out-of-bounds access is performed.
Also, use a #define instead of a hard-coded literal for the new array
size.
Addresses-Coverity-ID: 1451981 ("Out-of-bounds access")
Fixes: f5a3cb90b802d ("st
On Mon, May 04, 2020 at 06:02:28PM +0300, Konstantin Khlebnikov wrote:
> Then all per-cpu macro should work as is for UP case too.
> Surprisingly arrow operator (struct->filed) works for arrays too =)
>
>
> Inlining per-cpu structures should be good for tiny UP systems.
> Especially if this could
On Thu, Apr 30, 2020 at 10:39:19PM -0400, Steven Rostedt wrote:
> What's so damn special about alloc_percpu()? It's definitely not a fast
> path. And it's not used often.
Okay, I fixed it in the percpu code. It is definitly not a nice
solution, but having to call vmalloc_sync_mappings/unmappings()
In case force_nonblock happens to be true, the function returns
at:
2779 if (force_nonblock)
2780 return -EAGAIN;
before reaching this line of code. So, the null check on force_nonblock
at 2785, is never actually being executed.
Addresses-Coverity-ID: 1492838 ("Logicall
On Fri, May 01, 2020 at 04:50:01PM -0700, Jonathan Bakker wrote:
> This patchset makes several improvements to Aries devices which are
> based on S5PV210. Several pulls on GPIOs were incorrect/not specified,
> sleep GPIO configurations have been added, and more devices have been
> added.
>
> Touc
On Sun, May 3, 2020 at 1:41 AM Clay McClure wrote:
> To preserve the existing behavior of defconfigs that select TI_CPTS, we
> must also select PTP_1588_CLOCK so that the dependency is satisfied.
> omap2plus_defconfig and keystone_defconfig have not been updated in a
> while, so some unrelated no
Define BLK_RWBS_LEN in blktrace_api.h
Bcache events use shorter 6 char buffer which could overflow.
Also remove unsed "bytes" argument.
Signed-off-by: Konstantin Khlebnikov
---
include/linux/blktrace_api.h |4 +-
include/trace/events/bcache.h | 20 +-
include/trace/events/block.h
It's hard to fit all flags into field 'rwbs' and even harder to remove
something without breaking compatibility. Let's expose all request flags
using common trace event methods: __print_symbolic and __print_flags.
This adds 32-bit 'req' field printed as req=OP,FLAGS,... by all events.
Exact consta
On Sun, 3 May 2020 at 10:34, Peng Liu wrote:
>
> commit c5afb6a87f23 ("sched/fair: Fix nohz.next_balance update")
> During idle load balance, this_cpu(ilb) do load balance for the other
> idle CPUs, also gather the earliest (nohz.)next_balance.
>
> Since commit:
> 'b7031a02ec75 ("sched/fair: Add
On Sat, May 2, 2020 at 2:08 PM Miquel Raynal wrote:
>
> Hi Kamal,
>
> Miquel Raynal wrote on Thu, 9 Jan 2020
> 18:28:07 +0100:
>
> > Hi Kamal,
> >
> > Kamal Dasu wrote on Thu, 9 Jan 2020 10:25:59
> > -0500:
> >
> > > Miquel,
> > >
> > > Yes the issue is still open. I was trying to understand the
On Mon, 4 May 2020 14:59:47 +0800, Tang Bin wrote:
> Use the defined variable "dev" to make the code cleaner.
>
> Signed-off-by: Zhang Shengju
> Signed-off-by: Tang Bin
> ---
> sound/soc/qcom/lpass-apq8016.c | 9
> sound/soc/qcom/lpass-cpu.c | 39 --
On 04/05/2020 18:19, Gustavo A. R. Silva wrote:
> In case force_nonblock happens to be true, the function returns
> at:
>
> 2779 if (force_nonblock)
> 2780 return -EAGAIN;
>
> before reaching this line of code. So, the null check on force_nonblock
> at 2785, is never act
On Mon, May 04, 2020 at 02:43:23PM +0200, Uladzislau Rezki wrote:
> On Fri, May 01, 2020 at 02:27:49PM -0700, Paul E. McKenney wrote:
> > On Tue, Apr 28, 2020 at 10:58:48PM +0200, Uladzislau Rezki (Sony) wrote:
> > > Cache some extra objects per-CPU. During reclaim process
> > > some pages are cach
Hi Wang,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on arm-soc/for-next linus/master linux/master v5.7-rc3
next-20200501]
[if your patch is applied to the wrong git tree, please drop us a note to help
i
On 5/4/20 9:19 AM, Gustavo A. R. Silva wrote:
> In case force_nonblock happens to be true, the function returns
> at:
>
> 2779 if (force_nonblock)
> 2780 return -EAGAIN;
>
> before reaching this line of code. So, the null check on force_nonblock
> at 2785, is never actua
- On May 4, 2020, at 11:12 AM, Joerg Roedel jroe...@suse.de wrote:
> On Thu, Apr 30, 2020 at 10:39:19PM -0400, Steven Rostedt wrote:
>> What's so damn special about alloc_percpu()? It's definitely not a fast
>> path. And it's not used often.
>
> Okay, I fixed it in the percpu code. It is defi
On Mon, May 04, 2020 at 11:28:46AM -0400, Mathieu Desnoyers wrote:
> - On May 4, 2020, at 11:12 AM, Joerg Roedel jroe...@suse.de wrote:
> Placing this here is inefficient. It syncs mappings for each percpu
> allocation.
> I would recommend moving it right after __vmalloc() is called to allocat
The functions metapage_writepage() and lmPostGC() can be concurrently
executed in the following call contexts:
Thread1:
metapage_writepage()
Thread2:
lbmIODone()
lmPostGC()
In metapage_writepage():
if (mp->log && !(mp->log->cflag & logGC_PAGEOUT))
In lmPostGC():
spin_lock_irqsave(&
On Mon, May 04, 2020 at 04:21:53PM +0200, Uladzislau Rezki wrote:
> > > >
> > > > If we are not doing single-pointer allocation, then that would also
> > > > eliminate
> > > > entering the low-level page allocator for single-pointer allocations.
> > > >
> > > > Or did you mean entry into the all
The functions txBegin() and txLazyCommit() can be concurrently executed
in the following call contexts:
Thread1:
jfs_write_inode()
jfs_commit_inode()
txBegin()
Thread2:
jfs_lazycommit()
txLazyCommit()
In txBegin():
tblk->next = tblk->last = tblk->xflag = tblk->flag = tblk->ls
Use BUG() in the impossible-to-hit default case when switching on the
scope of INVEPT to squash a warning with clang 11 due to clang treating
the BUG_ON() as conditional.
>> arch/x86/kvm/vmx/nested.c:5246:3: warning: variable 'roots_to_free'
is used uninitialized whenever 'if' condition is
On Mon, May 4, 2020 at 8:00 AM Michal Hocko wrote:
>
> On Mon 04-05-20 07:53:01, Shakeel Butt wrote:
> > On Mon, May 4, 2020 at 7:11 AM Michal Hocko wrote:
> > >
> > > On Mon 04-05-20 06:54:40, Shakeel Butt wrote:
> > > > On Sun, May 3, 2020 at 11:56 PM Michal Hocko wrote:
> > > > >
> > > > > On
- On May 4, 2020, at 11:31 AM, Joerg Roedel jroe...@suse.de wrote:
> On Mon, May 04, 2020 at 11:28:46AM -0400, Mathieu Desnoyers wrote:
>> - On May 4, 2020, at 11:12 AM, Joerg Roedel jroe...@suse.de wrote:
>> Placing this here is inefficient. It syncs mappings for each percpu
>> allocatio
> -Original Message-
> From: Hans de Goede
> Sent: Saturday, May 2, 2020 1:30 PM
> To: Darren Hart; Andy Shevchenko; Limonciello, Mario
> Cc: Hans de Goede; linux-a...@vger.kernel.org; platform-driver-
> x...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: [PATCH 0/5] platform/x86
On Mon, May 4, 2020 at 11:36 PM Shakeel Butt wrote:
>
> On Mon, May 4, 2020 at 8:00 AM Michal Hocko wrote:
> >
> > On Mon 04-05-20 07:53:01, Shakeel Butt wrote:
> > > On Mon, May 4, 2020 at 7:11 AM Michal Hocko wrote:
> > > >
> > > > On Mon 04-05-20 06:54:40, Shakeel Butt wrote:
> > > > > On Sun
On Sat, May 02, 2020 at 05:40:35PM +0300, Dmitry Osipenko wrote:
> 27.04.2020 18:31, Wolfram Sang пишет:
> >
> >> Yes, that bug should be fixed anyway. But that doesn't justify breaking
> >> suspend/resume completely, which *is* a regression.
> >>
> >> Look, I'm not saying that we should drop this
On Sun, May 3, 2020 at 7:30 AM Leon Romanovsky wrote:
> On Thu, Apr 30, 2020 at 04:37:14PM +0200, Arnd Bergmann wrote:
> > On Thu, Apr 30, 2020 at 7:22 AM Leon Romanovsky wrote:
> >
> > While warning limit is generally 1024 bytes for 32-bit architectures,
> > and 2048 bytes fro 64-bit architectur
> … However, the code fragment is incorrect
> because the dev pointer is used before the actual check
I find such information interesting.
> which leads to undefined behavior. …
I suggest to adjust the wording for this “conclusion”.
Regards,
Markus
On 2020/05/04 23:57, Shakeel Butt wrote:
> On Mon, May 4, 2020 at 7:20 AM Tetsuo Handa
> wrote:
>>
>> On 2020/05/04 22:54, Shakeel Butt wrote:
>>> It may not be a problem for an individual or small scale deployment
>>> but when "sweep before tear down" is the part of the workflow for
>>> thousands
Ho Christian,
On Mon, May 04, 2020 at 04:50:06PM +0200, Christian Borntraeger wrote:
> Mike,
> commit 51a2f644fd020d5f090044825c388444d11029d ("mm: free_area_init: allow
> defining max_zone_pfn in descending order")
> does increase the memory use on s390 (e.g. 700 MB vs.1.8 GB).
>
> Something is
On 04/05/20 16:17, Vincent Guittot wrote:
> On Sun, 3 May 2020 at 10:34, Peng Liu wrote:
>>
>> commit c5afb6a87f23 ("sched/fair: Fix nohz.next_balance update")
>> During idle load balance, this_cpu(ilb) do load balance for the other
>> idle CPUs, also gather the earliest (nohz.)next_balance.
>>
Signed-off-by: Charles Keepax
---
Changes since v1:
- Removed contains on the compatible
- Moved all sub-nodes into here directly only using $ref for properties
- As the regulator binding only contained subnodes that file is now deleted
- Removed some pointless descriptions
A little nervous
Signed-off-by: Charles Keepax
---
Changes since v1:
- Moved sub-node into MFD file leaving just the properties in here
- Removed contains on the compatible
- Added a required -pins suffix for pinmux/ctrl nodes
- Added some extra blank lines for readability
Thanks,
Charles
.../bindings/pinc
Signed-off-by: Charles Keepax
---
Changes since v1:
- Moved sub-nodes into MFD file leaving just the properties in here
- Removed contains on the compatible
- Made clock descriptions comments rather than being in the description
Thanks,
Charles
.../devicetree/bindings/clock/cirrus,lochnagar
Signed-off-by: Charles Keepax
---
Changes since v1:
- Moved sub-node into MFD file leaving just the properties in here
- Removed contains on the compatible
- Removed some pointless descriptions
Thanks,
Charles
.../devicetree/bindings/sound/cirrus,lochnagar.txt | 39
.../bin
Signed-off-by: Charles Keepax
---
Changes since v1:
- Moved sub-node into MFD file leaving just the properties in here
- Removed contains on the compatible
Thanks,
Charles
.../devicetree/bindings/hwmon/cirrus,lochnagar.txt | 26
.../bindings/hwmon/cirrus,lochnagar.yaml
On Mon, May 04, 2020 at 02:32:51PM +0530, Nagarjuna Kristam wrote:
> >On 28-04-2020 16:25, Thierry Reding wrote:
> > > On Wed, Apr 15, 2020 at 01:55:06PM +0530, Nagarjuna Kristam wrote:
[...]
> > > diff --git a/drivers/phy/tegra/xusb-tegra-cd.c
> > > b/drivers/phy/tegra/xusb-tegra-cd.c
> > > +stat
On Thu, Apr 30, 2020 at 10:06:14AM +0200, Pali Rohár wrote:
> Adding even 100ms (PCI_PM_D3COLD_WAIT) delay between enabling link
> training and starting link training causes detection issues with some
> buggy cards (such as Compex WLE900VX).
>
> Move the code which enables link training immediatel
On Mon, May 04, 2020 at 08:23:08PM +0530, Anshuman Khandual wrote:
>
>
> On 05/04/2020 06:13 PM, Mark Rutland wrote:
> > On Mon, May 04, 2020 at 06:00:00PM +0530, Anshuman Khandual wrote:
> >> A global boot_cpu_data is not really required. Lets drop this.
> >
> > I don't think it's true that thi
On Thu, Apr 30, 2020 at 10:06:25AM +0200, Pali Rohár wrote:
> Move the max-link-speed property of the PCIe node from board specific
> device tree files to the generic armada-37xx.dtsi.
>
> Armada 37xx supports only PCIe gen2 speed so max-link-speed property
> should be in the genetic armada-37xx.d
On Mon, May 04, 2020 at 11:38:43AM -0400, Mathieu Desnoyers wrote:
> - On May 4, 2020, at 11:31 AM, Joerg Roedel jroe...@suse.de wrote:
> > Tried this before, actually I put it into the caller of
> > pcpu_mem_zalloc(), but that didn't fix the problem for me. Stevens
> > test-case still hangs th
On Mon, 4 May 2020 12:05:56 -0300
Jason Gunthorpe wrote:
> On Mon, May 04, 2020 at 08:20:55AM -0600, Alex Williamson wrote:
> > On Fri, 1 May 2020 20:25:50 -0300
> > Jason Gunthorpe wrote:
> >
> > > On Fri, May 01, 2020 at 03:39:19PM -0600, Alex Williamson wrote:
> > > > Rather than calling
04.05.2020 17:53, Sowjanya Komatineni пишет:
>
> On 4/30/20 12:33 PM, Dmitry Osipenko wrote:
> Hi Dmitry,
>
> Will update in v12 to not allow freeze in middle of a frame capture.
>
> Can you please confirm on above if you agree to allow freeze to
> happen in b/w frame captu
On 04/05/2020 18:25, Jens Axboe wrote:
> On 5/4/20 9:19 AM, Gustavo A. R. Silva wrote:
>> In case force_nonblock happens to be true, the function returns
>> at:
>>
>> 2779 if (force_nonblock)
>> 2780 return -EAGAIN;
>>
>> before reaching this line of code. So, the null che
On Thu, Apr 30, 2020 at 10:06:21AM +0200, Pali Rohár wrote:
> PCI-E capability macros are already defined in linux/pci_regs.h.
> Remove their reimplementation in pcie-aardvark.
s/PCI-E/PCIe/
I mentioned this last time, but I guess you missed it.
> Signed-off-by: Pali Rohár
> ---
> drivers/pci/
This is required to avoid waiting in lower layers.
Signed-off-by: Konstantin Khlebnikov
---
fs/iomap/direct-io.c |2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 20dde5aadcdd..9b53fa7651e3 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/
For some reason NOWAIT currently is passed only for writes.
Signed-off-by: Konstantin Khlebnikov
Fixes: 03a07c92a9ed ("block: return on congested block device")
---
fs/direct-io.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 00b
On 5/4/20 8:53 AM, Dmitry Osipenko wrote:
04.05.2020 17:53, Sowjanya Komatineni пишет:
On 4/30/20 12:33 PM, Dmitry Osipenko wrote:
Hi Dmitry,
Will update in v12 to not allow freeze in middle of a frame capture.
Can you please confirm on above if you agree to allow freeze to
happen in b/w fr
kvm_x86_ops.set_dr6 is only ever called with vcpu->arch.dr6 as the
second argument, and for both SVM and VMX the VMCB value is kept
synchronized with vcpu->arch.dr6 on #DB; we can therefore remove the
read accessor.
For the write accessor we can avoid the retpoline penalty on Intel
by accepting a
The purpose of this series is to get rid of the get_dr6 accessor
and, on Intel, of set_dr6 as well. This is done mostly in patch 2,
since patch 3 is only the resulting cleanup. Patch 1 is a related
bug fix that I found while inspecting the code.
A guest debugging selftest is sorely needed if any
Ensure that the current value of DR6 is always available in vcpu->arch.dr6,
so that the get_dr6 callback can just access vcpu->arch.dr6 and becomes
redundant.
Signed-off-by: Paolo Bonzini
---
arch/x86/kvm/svm/svm.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86
The corresponding code was added for VMX in commit 42dbaa5a057
("KVM: x86: Virtualize debug registers, 2008-12-15) but never for AMD.
Fix this.
Cc: sta...@vger.kernel.org
Fixes: 42dbaa5a057 ("KVM: x86: Virtualize debug registers")
Signed-off-by: Paolo Bonzini
---
arch/x86/kvm/svm/svm.c | 2 ++
1
On Fri, Apr 24, 2020 at 01:22:30PM +0100, Maciej W. Rozycki wrote:
> On Thu, 23 Apr 2020, Jiaxun Yang wrote:
>
> > > Alternatively, have you made any attempt to verify if actually replacing
> > >the setting for VMLINUX_LOAD_ADDRESS would be safe? Glancing over its use
> > >there do not appear t
On 04/05/20 17:35, Sean Christopherson wrote:
> Use BUG() in the impossible-to-hit default case when switching on the
> scope of INVEPT to squash a warning with clang 11 due to clang treating
> the BUG_ON() as conditional.
>
> >> arch/x86/kvm/vmx/nested.c:5246:3: warning: variable 'roots_to_free
On Mon, May 04, 2020 at 06:54:53PM +0300, Konstantin Khlebnikov wrote:
> This is required to avoid waiting in lower layers.
>
> Signed-off-by: Konstantin Khlebnikov
This looks sensible. Did you run this through xfstests?
On Sun, May 03, 2020 at 09:20:19PM +0100, Chris Wilson wrote:
> > Err, why does i915 implements its own uncached memcpy instead of relying
> > on core functionality to start with?
>
> What is this core functionality that provides movntqda?
A sensible name might be memcpy_uncached or mempcy_nontem
On 5/4/20 06:54, Kalle Valo wrote:
> "Gustavo A. R. Silva" writes:
>
>> Hi Arnd,
>>
>> On 4/30/20 16:30, Arnd Bergmann wrote:
>>> gcc-10 started warning about out-of-bounds access for zero-length
>>> arrays:
>>>
>>> In file included from drivers/net/wireless/ath/ath10k/core.h:18,
>>>
On 5/1/20 4:02 AM, Luke Nelson wrote:
As Daniel suggested to us, we ran our formal verification tool, Serval,
over the arm JIT. The bugs we found have been patched and applied to the
bpf tree [1, 2]. This patch series introduces two small optimizations
that simplify the JIT and use fewer instruct
On 04/05/2020 17:17, Vincent Guittot wrote:
> On Sun, 3 May 2020 at 10:34, Peng Liu wrote:
>>
>> commit c5afb6a87f23 ("sched/fair: Fix nohz.next_balance update")
>> During idle load balance, this_cpu(ilb) do load balance for the other
>> idle CPUs, also gather the earliest (nohz.)next_balance.
>>
On Mon 04-05-20 08:35:57, Shakeel Butt wrote:
> On Mon, May 4, 2020 at 8:00 AM Michal Hocko wrote:
> >
> > On Mon 04-05-20 07:53:01, Shakeel Butt wrote:
[...]
> > > I am trying to see if "no eligible task" is really an issue and should
> > > be warned for the "other use cases". The only real use-c
To get exact count of free and used objects slub have to scan list of
partial slabs. This may take at long time. Scanning holds spinlock and
blocks allocations which move partial slabs to per-cpu lists and back.
Example found in the wild:
# cat /sys/kernel/slab/dentry/partial
14478538 N0=7329569
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