On 25.09.19 04:57, Anshuman Khandual wrote:
> Currently during memory hot add procedure, memory gets into memblock before
> calling arch_add_memory() which creates it's linear mapping.
>
> add_memory_resource() {
> ..
> memblock_add_node()
> ..
>
On Wed, Sep 25, 2019 at 10:48:32AM +0800, Lu Baolu wrote:
> Hi Kevin,
>
> On 9/24/19 3:00 PM, Tian, Kevin wrote:
> > > > > '---'
> > > > > '---'
> > > > >
> > > > > This patch series only aims to achieve the first goal, a.k.a using
> > first goal? then what are other g
* Wei Yang wrote:
> To be honest, I have a question on how this works.
>
> As the comment says, we need to call pmd_read_atomic before using
> pte_offset_map_lock to avoid data corruption.
There's only a risk of data corruption if mmap_sem is held for reading.
If it's held for writing then t
On Wed 25-09-19 10:35:30, Hillf Danton wrote:
>
> On Tue, 24 Sep 2019 17:23:35 + from Roman Gushchin
> >
> > On Tue, Sep 24, 2019 at 03:30:16PM +0200, Michal Hocko wrote:
> > >
> > > But really, make sure you look into the existing feature set that memcg
> > > v2 provides already and come bac
On Wed 25-09-19 08:27:53, Anshuman Khandual wrote:
> Currently during memory hot add procedure, memory gets into memblock before
> calling arch_add_memory() which creates it's linear mapping.
>
> add_memory_resource() {
> ..
> memblock_add_node()
> ...
On 2019/9/25 14:36, Mike Rapoport wrote:
> On Tue, Sep 24, 2019 at 04:09:32PM +0800, Yunfeng Ye wrote:
>> sparse_buffer_init() use memblock_alloc_try_nid_raw() to allocate memory
>> for page management structure, if memory allocation fails from specified
>> node, it will fall back to allocate fr
From: "james.tai"
This patch adds a generic devicetree board file and a dtsi for
Realtek RTD16XX and RTD13XX platform.
Signed-off-by: james.tai
---
Changes since last version:
- Add RTD13XX platform.
- Add PSCI support.
- Add aliases.
- move uart0 to dtsi file.
-
On Tue 24-09-19 09:26:37, Yang Shi wrote:
>
>
> On 9/24/19 6:56 AM, Michal Hocko wrote:
> > Do we really need this if deferred list is going to be shrunk more
> > pro-actively as discussed already - I am sorry I do not have a link handy
> > but in short the deferred list would be drained from a k
(updated CC)
Hi,
On Tue, Sep 24, 2019 at 12:52:35PM -0500, Adam Ford wrote:
> On Mon, Jan 21, 2019 at 2:05 AM Mike Rapoport wrote:
> >
> > Hi,
> >
> > v2 changes:
> > * replace some more %lu with %zu
> > * remove panics where they are not needed in s390 and in printk
> > * collect Acked-by and R
We have Goldfish RTC device available on QEMU RISC-V virt machine
hence enable required driver in RV32 and RV64 defconfigs.
Signed-off-by: Anup Patel
---
arch/riscv/configs/defconfig | 3 +++
arch/riscv/configs/rv32_defconfig | 3 +++
2 files changed, 6 insertions(+)
diff --git a/arch/risc
We don't need explicit dependency of Goldfish kconfig option on various
architectures. Instead, the Goldfish kconfig option should only depend
on HAS_IOMEM and HAS_DMA which is sufficient for all Goldfish devices.
Signed-off-by: Anup Patel
---
drivers/platform/goldfish/Kconfig | 3 +--
1 file ch
We will be using Goldfish RTC device real date-time on QEMU RISC-V virt
machine so this series:
1. Allows GOLDFISH kconfig option to be enabled for RISC-V
2. Enables GOLDFISH RTC driver in RISC-V defconfigs
This series can be found in goldfish_rtc_v2 branch at:
https//github.com/avpatel/linux.git
On Tue, Sep 24, 2019 at 04:09:32PM +0800, Yunfeng Ye wrote:
> sparse_buffer_init() use memblock_alloc_try_nid_raw() to allocate memory
> for page management structure, if memory allocation fails from specified
> node, it will fall back to allocate from other nodes.
>
> Normally, the page managemen
On Fri, Sep 20, 2019 at 06:49:03AM +0800, Sam Shih wrote:
> We can use fixed-clock to repair mt7628 pwm during configure from
> userspace. The SoC is legacy MIPS and has no complex clock tree.
> Due to we can get clock frequency for period calculation from DT
> fixed-clock, so we can remove has-clo
When running overlay tests using character devices as base fs partitions,
all overlay usecase results become 'notrun'. Function
'_overay_config_override' (common/config) detects that the current base
fs partition is not a block device and will set FSTYP to base fs. The
overlay usecase will check th
Hello.
On 24.09.19 23:40, Xue Liu wrote:
On Sat, 21 Sep 2019 at 13:52, Stefan Schmidt wrote:
Hello Xue.
On 20.09.19 21:45, Christophe JAILLET wrote:
Use a 'skb_put_data()' variant instead of rewritting it.
The __skb_put_data variant is safe here. It is obvious that the skb can
not overflow.
On 2019-09-12 18:26, Georgi Djakov wrote:
Hi Pradeep,
Thanks for the patch!
On 9/6/19 15:47, Pradeep P V K wrote:
Vote for the MSM bus bandwidth required by SDHC driver
based on the clock frequency and bus width of the card.
Otherwise,the system clocks may run at minimum clock speed
and thus a
* Song Liu wrote:
>
>
> > On Sep 17, 2019, at 4:35 PM, Linus Torvalds
> > wrote:
> >
> > On Tue, Sep 17, 2019 at 4:29 PM Song Liu wrote:
> >>
> >> How about we just do:
> >>
> >> diff --git i/arch/x86/mm/pti.c w/arch/x86/mm/pti.c
> >> index b196524759ec..0437f65250db 100644
> >> --- i/a
On Tue 24 Sep 22:41 PDT 2019, Stephen Boyd wrote:
> I don't see any users of icc_get() in the kernel today, and adding them
> doesn't make sense. That's because adding calls to that function in a
> driver will make the driver SoC specific given that the arguments are
> some sort of source and dest
Hi Anatoly,
On Sun, Sep 22, 2019 at 9:14 PM Anatoly Pugachev wrote:
> > Thanks for the report, and apology for the breakage.
> >
> > Please check this patch.
> > https://lore.kernel.org/patchwork/patch/1130469/
> >
> > I hope it will fix the build error.
>
>
> It does. Thanks Masahiro!
Thanks
From: Wanpeng Li
5000 guest cycles delta is easy to encounter on desktop, per-vCPU
lapic_timer_advance_ns always keeps at 1000ns initial value, lets
loose fluctuation filter a bit to make auto tune can make some
progress.
Signed-off-by: Wanpeng Li
---
arch/x86/kvm/lapic.c | 4 ++--
1 file c
I don't see any users of icc_get() in the kernel today, and adding them
doesn't make sense. That's because adding calls to that function in a
driver will make the driver SoC specific given that the arguments are
some sort of source and destination numbers that would typically be
listed in DT or com
On Wed, Sep 25, 2019 at 6:27 AM Zhihao Cheng wrote:
>
> There are indeed many '-b' options in xfstests. I only confirmed the line of
> overlay test. Other -b test options I need to reconfirm later.
>
FWIW, I eyeballed blockdev related overlayfs common code bits
and all I found out of order was:
On Mon, Sep 23, 2019 at 08:24:52PM +0800, Lu Baolu wrote:
> This adds functions to manipulate first level page tables
> which could be used by a scalale mode capable IOMMU unit.
>
> intel_mmmap_range(domain, addr, end, phys_addr, prot)
> - Map an iova range of [addr, end) to the physical memory
>
On Wed, Sep 25, 2019 at 10:37 AM Greg Kroah-Hartman
wrote:
>
> On Wed, Sep 25, 2019 at 10:30:00AM +0530, Anup Patel wrote:
> > On Wed, Sep 25, 2019 at 10:13 AM Greg Kroah-Hartman
> > wrote:
> > >
> > > On Wed, Sep 25, 2019 at 04:30:03AM +, Anup Patel wrote:
> > > > We will be using some of th
From: Mike Rapoport
arm64 calls memblock_free() for the initrd area in its implementation of
free_initrd_mem(), but this call has no actual effect that late in the boot
process. By the time initrd is freed, all the reserved memory is managed by
the page allocator and the memblock.reserved is unus
Hello,
syzbot found the following crash on:
HEAD commit:b41dae06 Merge tag 'xfs-5.4-merge-7' of git://git.kernel.o..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17d19a7e60
kernel config: https://syzkaller.appspot.com/x/.config?x=dfcf592db22b9132
da
On Wed, Sep 25, 2019 at 10:30:00AM +0530, Anup Patel wrote:
> On Wed, Sep 25, 2019 at 10:13 AM Greg Kroah-Hartman
> wrote:
> >
> > On Wed, Sep 25, 2019 at 04:30:03AM +, Anup Patel wrote:
> > > We will be using some of the Goldfish virtual platform devices (such
> > > as RTC) on QEMU RISC-V vir
On Wed, Sep 25, 2019 at 10:13 AM Greg Kroah-Hartman
wrote:
>
> On Wed, Sep 25, 2019 at 04:30:03AM +, Anup Patel wrote:
> > We will be using some of the Goldfish virtual platform devices (such
> > as RTC) on QEMU RISC-V virt machine so this patch enables goldfish
> > kconfig option for RISC-V a
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Monday, September 23, 2019 8:25 PM
>
> If a dmar domain has DOMAIN_FLAG_FIRST_LEVEL_TRANS bit set
> in its flags, IOMMU will use the first level page table for
> translation. Hence, we need to map or unmap addresses in the
> first level pa
On Wed, Sep 25, 2019 at 04:30:03AM +, Anup Patel wrote:
> We will be using some of the Goldfish virtual platform devices (such
> as RTC) on QEMU RISC-V virt machine so this patch enables goldfish
> kconfig option for RISC-V architecture.
>
> Signed-off-by: Anup Patel
> ---
> drivers/platform
On Tue, Sep 24, 2019 at 09:22:10AM -0700, Kees Cook wrote:
> On Tue, Sep 24, 2019 at 04:28:35PM +0530, Pankaj Bharadiya wrote:
> > At present we have 3 different macros to calculate the size of a
> > member of a struct:
> > - SIZEOF_FIELD
> > - FIELD_SIZEOF
> > - sizeof_field
> >
> > To brin
We will be using Goldfish RTC device real date-time on QEMU RISC-V virt
machine so this series:
1. Allows GOLDFISH kconfig option to be enabled for RISC-V
2. Enables GOLDFISH RTC driver in RISC-V defconfigs
This series can be found in goldfish_rtc_v1 branch at:
https//github.com/avpatel/linux.git
We have Goldfish RTC device available on QEMU RISC-V virt machine
hence enable required driver in RV32 and RV64 defconfigs.
Signed-off-by: Anup Patel
---
arch/riscv/configs/defconfig | 3 +++
arch/riscv/configs/rv32_defconfig | 3 +++
2 files changed, 6 insertions(+)
diff --git a/arch/risc
We will be using some of the Goldfish virtual platform devices (such
as RTC) on QEMU RISC-V virt machine so this patch enables goldfish
kconfig option for RISC-V architecture.
Signed-off-by: Anup Patel
---
drivers/platform/goldfish/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
d
> > >
> > > > > > > > >
> > > > > > > > > The 'fsl,ippdexpcr-alt-addr' property is used to handle
> > > > > > > > > an errata
> > > > > > > > > A-008646 on LS1021A
> > > > > > > > >
> > > > > > > > > Signed-off-by: Biwen Li
> > > > > > > > > ---
> > > > > > > > > Change in v3:
> > > > > > > > >
On 9/24/2019 5:41 PM, Pankaj Dubey wrote:
-Original Message-
From: Vidya Sagar
Sent: Tuesday, September 24, 2019 4:57 PM
To: Pankaj Dubey ; 'Gustavo Pimentel'
; 'Andrew Murray'
Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org;
jingooh...@gmail.com; lorenzo.pieral...@arm.co
In snd_skl_parse_uuids if allocation for module->instance_id fails, the
allocated memory for module shoulde be released.
Signed-off-by: Navid Emamdoost
---
sound/soc/intel/skylake/skl-sst-utils.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/intel/skylake/skl-sst-utils.c
b/sound
On 2019/9/24 上午12:31, Matt Cover wrote:
I think it's better to safe to just drop the packet instead of trying to
workaround it.
This patch aside, dropping the packet here
seems like the wrong choice. Loading a
prog at this hookpoint "configures"
steering. The action of configuring
steering sh
On Powerpc, watchpoint match range is double-word granular. On a
watchpoint hit, DAR is set to the first byte of overlap between
actual access and watched range. And thus it's quite possible that
DAR does not point inside user specified range. Ex, say user creates
a watchpoint with address range 0x
So far we used to ignore exception if dar points outside of user
specified range. But now we are ignoring it only if actual load/
store range does not overlap with user specified range. Include
selftests for the same:
# ./tools/testing/selftests/powerpc/ptrace/perf-hwbreak
...
TESTED: No ove
On the 8xx, signals are generated after executing the instruction.
So no need to manually single-step on 8xx.
Signed-off-by: Ravi Bangoria
---
.../selftests/powerpc/ptrace/ptrace-hwbreak.c | 26 ++-
1 file changed, 19 insertions(+), 7 deletions(-)
diff --git a/tools/testing/self
> >
> > > > > > > >
> > > > > > > > The 'fsl,ippdexpcr-alt-addr' property is used to handle an
> > > > > > > > errata
> > > > > > > > A-008646 on LS1021A
> > > > > > > >
> > > > > > > > Signed-off-by: Biwen Li
> > > > > > > > ---
> > > > > > > > Change in v3:
> > > > > > > > - rename prope
v3: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-July/193339.html
v3->v4:
- Instead of considering exception as extraneous when dar is outside of
user specified range, analyse the instruction and check for overlap
between user specified range and actual load/store range.
- Add self
ptrace-hwbreak.c selftest is logically broken. On powerpc, when
watchpoint is created with ptrace, signals are generated before
executing the instruction and user has to manually singlestep
the instruction with watchpoint disabled, which selftest never
does and thus it keeps on getting the signal a
Watchpoint match range is always doubleword(8 bytes) aligned on
powerpc. If the given range is crossing doubleword boundary, we
need to increase the length such that next doubleword also get
covered. Ex,
address len = 6 bytes
|=.
|v--|--v-
On 2019/9/23 下午5:12, wangxu (AE) wrote:
Hi Michael
Thanks for your fast reply.
As the following code, the 2nd branch of iov_iter_advance() does not check if
i->count < size, when this happens, i->count -= size may cause len exceed
INT_MAX, and then total_len exceed INT_MAX.
On Mon, Sep 16, 2019 at 3:44 PM Stephen Boyd wrote:
>
> Quoting Srinivas Kandagatla (2019-09-12 02:10:19)
> > looks like SoC ID is not exported to sysfs for some reason.
> > This patch adds it!
> >
> > This is mostly used by userspace libraries like SNPE.
>
> What is SNPE?
Snapdragon Neural Proce
On 09/25/2019 08:43 AM, Andrew Morton wrote:
> On Mon, 23 Sep 2019 11:16:38 +0530 Anshuman Khandual
> wrote:
>
>>
>>
>> On 09/16/2019 11:17 AM, Anshuman Khandual wrote:
>>> In add_memory_resource() the memory range to be hot added first gets into
>>> the memblock via memblock_add() before arc
On 2019/9/24 下午3:21, Ding Xiang wrote:
platform_get_irq already contains error message,
Is this message contained in all possible error path? If not, it's
probably better to keep it as is.
Thanks
so remove
the redundant dev_err message
Signed-off-by: Ding Xiang
---
drivers/virtio/v
> -Original Message-
> From: Biwen Li
> Sent: Tuesday, September 24, 2019 10:47 PM
> To: Leo Li ; shawn...@kernel.org;
> robh...@kernel.org; mark.rutl...@arm.com; Ran Wang
>
> Cc: linuxppc-...@lists.ozlabs.org; linux-arm-ker...@lists.infradead.org;
> linux-kernel@vger.kernel.org; device
> > > > > >
> > > > > > The 'fsl,ippdexpcr-alt-addr' property is used to handle an
> > > > > > errata
> > > > > > A-008646 on LS1021A
> > > > > >
> > > > > > Signed-off-by: Biwen Li
> > > > > > ---
> > > > > > Change in v3:
> > > > > > - rename property name
> > > > > > fsl,rcpm-scfg ->
On Tue, Sep 24, 2019 at 08:45:18AM -0700, Matthew Wilcox wrote:
> On Tue, Sep 24, 2019 at 11:19:08AM +0800, Peter Xu wrote:
> > On Mon, Sep 23, 2019 at 07:54:47PM -0700, Matthew Wilcox wrote:
> > > On Tue, Sep 24, 2019 at 10:47:21AM +0800, Peter Xu wrote:
> > > > On Mon, Sep 23, 2019 at 11:03:49AM
On 09/24/2019 06:01 PM, Mike Rapoport wrote:
> On Tue, Sep 24, 2019 at 02:51:01PM +0300, Kirill A. Shutemov wrote:
>> On Fri, Sep 20, 2019 at 12:03:21PM +0530, Anshuman Khandual wrote:
>>> This series adds a test validation for architecture exported page table
>>> helpers. Patch in the series ad
> -Original Message-
> From: Biwen Li
> Sent: Tuesday, September 24, 2019 10:30 PM
> To: Leo Li ; shawn...@kernel.org;
> robh...@kernel.org; mark.rutl...@arm.com; Ran Wang
>
> Cc: linuxppc-...@lists.ozlabs.org; linux-arm-ker...@lists.infradead.org;
> linux-kernel@vger.kernel.org; device
Hi
> On Tue, Sep 24, 2019 at 06:52:35PM +0800, Shengjiu Wang wrote:
> > There is error "aplay: pcm_write:2023: write error: Input/output error"
> > on i.MX8QM/i.MX8QXP platform for S24_3LE format.
> >
> > In i.MX8QM/i.MX8QXP, the DMA is EDMA, which don't support 24bit
> > sample, but we didn't add
> > > >
> > > > The 'fsl,ippdexpcr-alt-addr' property is used to handle an errata
> > > > A-008646 on LS1021A
> > > >
> > > > Signed-off-by: Biwen Li
> > > > ---
> > > > Change in v3:
> > > > - rename property name
> > > > fsl,rcpm-scfg -> fsl,ippdexpcr-alt-addr
> > > >
> > > > C
There are indeed many '-b' options in xfstests. I only confirmed the line of
overlay test. Other -b test options I need to reconfirm later.
在 2019/9/25 11:17, Darrick J. Wong 写道:
> On Tue, Sep 24, 2019 at 08:05:50PM -0700, Darrick J. Wong wrote:
>> On Wed, Sep 25, 2019 at 09:54:08AM +0800, Zhihao
> -Original Message-
> From: Biwen Li
> Sent: Tuesday, September 24, 2019 10:13 PM
> To: Leo Li ; shawn...@kernel.org;
> robh...@kernel.org; mark.rutl...@arm.com; Ran Wang
>
> Cc: linuxppc-...@lists.ozlabs.org; linux-arm-ker...@lists.infradead.org;
> linux-kernel@vger.kernel.org; device
In mlx5_fpga_conn_create_cq if mlx5_vector2eqn fails the allocated
memory should be released.
Signed-off-by: Navid Emamdoost
---
drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga
Oh, You are right, I understood it wrong. Thanks for reminding.
在 2019/9/25 11:15, Eryu Guan 写道:
> On Tue, Sep 24, 2019 at 10:19:38PM +0800, Zhihao Cheng wrote:
>> As far as I know, _require_scratch_shutdown() is called after
>> _overay_config_override(), at this moment, FSTYP equals to base fs.
On Tue, Sep 24, 2019 at 08:05:50PM -0700, Darrick J. Wong wrote:
> On Wed, Sep 25, 2019 at 09:54:08AM +0800, Zhihao Cheng wrote:
> > There is a message in _supported_fs():
> > _notrun "not suitable for this filesystem type: $FSTYP"
> > for when overlay usecases are executed on a chararcter devi
On Tue, Sep 24, 2019 at 10:19:38PM +0800, Zhihao Cheng wrote:
> As far as I know, _require_scratch_shutdown() is called after
> _overay_config_override(), at this moment, FSTYP equals to base fs. According
> the implementation of _require_scratch_shutdown:
> 3090 _require_scratch_shutdown()
> 309
On Wed, 11 Sep 2019 at 21:04, Paolo Bonzini wrote:
>
> On 11/09/19 06:25, Waiman Long wrote:
> > On 9/10/19 6:56 AM, Wanpeng Li wrote:
> >> On Mon, 9 Sep 2019 at 18:56, Waiman Long wrote:
> >>> On 9/9/19 2:40 AM, Wanpeng Li wrote:
> From: Wanpeng Li
>
> This patch reverts commit 7
> >
> > The 'fsl,ippdexpcr-alt-addr' property is used to handle an errata
> > A-008646 on LS1021A
> >
> > Signed-off-by: Biwen Li
> > ---
> > Change in v3:
> > - rename property name
> > fsl,rcpm-scfg -> fsl,ippdexpcr-alt-addr
> >
> > Change in v2:
> > - update desc of the property '
On Mon, 23 Sep 2019 11:16:38 +0530 Anshuman Khandual
wrote:
>
>
> On 09/16/2019 11:17 AM, Anshuman Khandual wrote:
> > In add_memory_resource() the memory range to be hot added first gets into
> > the memblock via memblock_add() before arch_add_memory() is called on it.
> > Reverse sequence sh
On Wed, Sep 25, 2019 at 09:54:08AM +0800, Zhihao Cheng wrote:
> There is a message in _supported_fs():
> _notrun "not suitable for this filesystem type: $FSTYP"
> for when overlay usecases are executed on a chararcter device based base
You can do that?
What does that even look like?
--D
> f
Hi Matthew and Kirill
I didn't add your previous r-b and a-b tag since I refactored the cow_user_page
and changed the ptl range in v9. Please have a review, thanks
--
Cheers,
Justin (Jia He)
> -Original Message-
> From: Jia He
> Sent: 2019年9月25日 10:59
> To: Catalin Marinas ; Will Deac
On arm64 without hardware Access Flag, copying fromuser will fail because
the pte is old and cannot be marked young. So we always end up with zeroed
page after fork() + CoW for pfn mappings. we don't always have a
hardware-managed access flag on arm64.
Hence implement arch_faults_on_old_pte on arm
When we tested pmdk unit test [1] vmmalloc_fork TEST1 in arm64 guest, there
will be a double page fault in __copy_from_user_inatomic of cow_user_page.
Below call trace is from arm64 do_page_fault for debugging purpose
[ 110.016195] Call trace:
[ 110.016826] do_page_fault+0x5a4/0x690
[ 110.0178
We unconditionally set the HW_AFDBM capability and only enable it on
CPUs which really have the feature. But sometimes we need to know
whether this cpu has the capability of HW AF. So decouple AF from
DBM by new helper cpu_has_hw_af().
Signed-off-by: Jia He
Suggested-by: Suzuki Poulose
Reported-
When we tested pmdk unit test vmmalloc_fork TEST1 in arm64 guest, there
will be a double page fault in __copy_from_user_inatomic of cow_user_page.
As told by Catalin: "On arm64 without hardware Access Flag, copying from
user will fail because the pte is old and cannot be marked young. So we
always
Currently during memory hot add procedure, memory gets into memblock before
calling arch_add_memory() which creates it's linear mapping.
add_memory_resource() {
..
memblock_add_node()
..
arch_add_memory()
..
}
On Sat, Sep 7, 2019 at 2:30 AM Tim Chen wrote:
> +static inline s64 core_sched_imbalance_delta(int src_cpu, int dst_cpu,
> + int src_sibling, int dst_sibling,
> + struct task_group *tg, u64 task_load)
> +{
> + struct sched_entity *se, *se_sibling,
Hi, David
> Subject: RE: [PATCH] pwm: pwm-imx27: Use 'dev' instead of dereferencing it
> repeatedly
>
> From: Anson Huang
> > Sent: 24 September 2019 11:03
> > Hi, David
> >
> > > Subject: RE: [PATCH] pwm: pwm-imx27: Use 'dev' instead of
> > > dereferencing it repeatedly
> > >
> > > From: Anson H
Hi Vinod,
>-Original Message-
>From: Vinod Koul
>Sent: 2019年9月25日 3:35
>To: Peng Ma
>Cc: dan.j.willi...@intel.com; Leo Li ;
>linux-kernel@vger.kernel.org; dmaeng...@vger.kernel.org
>Subject: Re: [EXT] Re: [V4 2/2] dmaengine: fsl-dpaa2-qdma: Add NXP dpaa2
>qDMA controller driver for Layer
Add a IIO driver for the Bosch BMA400 3-axes ultra low-power accelerometer.
The initial implementation of the driver adds read support for the
acceleration and temperature data registers. The driver also has support for
reading and writing to the output data rate, oversampling ratio, and scale
conf
Add a IIO driver for the Bosch BMA400 3-axes ultra-low power accelerometer.
The driver supports reading from the acceleration and temperature
registers. The driver also supports reading and configuring the output data
rate, oversampling ratio, and scale.
Signed-off-by: Dan Robertson
---
drivers/
From: Peng Fan
V9:
- Add Florian's R-b tag in patch 1/2
- Mark arm,func-id as a required property per Andre's comments in patch 1/2.
- Make invoke_smc_mbox_fn as a private entry in a channal per Florian's
comments in pach 2/2
- Include linux/types.h in arm-smccc-mbox.h in patch 2/2
- Drop
From: Peng Fan
The ARM SMC/HVC mailbox binding describes a firmware interface to trigger
actions in software layers running in the EL2 or EL3 exception levels.
The term "ARM" here relates to the SMC instruction as part of the ARM
instruction set, not as a standard endorsed by ARM Ltd.
Signed-off
From: Peng Fan
This mailbox driver implements a mailbox which signals transmitted data
via an ARM smc (secure monitor call) instruction. The mailbox receiver
is implemented in firmware and can synchronously return data when it
returns execution to the non-secure world again.
An asynchronous recei
When perf stat --topdown is enabled, the internal event list is expanded to:
"{topdown-total-slots,topdown-slots-retired,topdown-recovery-bubbles,topdown-fetch-bubbles,topdown-slots-issued}".
With this patch,
1. When --all-user is enabled, it's expanded to:
"{topdown-total-slots:u,topdown-slots-r
This patch series supports the new options "--all-kernel" and "--all-user"
in perf-stat.
For example,
root@kbl:~# perf stat -e cycles,instructions --all-kernel --all-user -a --
sleep 1
Performance counter stats for 'system wide':
19,156,665 cycles:k
7,265,342 instru
perf record has supported --all-kernel / --all-user to configure all used
events to run in kernel space or in user space. But perf stat doesn't support
that. It would be useful to support these options so that we can collect
metrics for e.g. user space only without having to type ":u" in the events
On Thu, Sep 12, 2019 at 02:51:53PM +0200, Paul Menzel wrote:
> On a Dell OptiPlex 5040 with Linux 5.3-rc8, I’ll try to get
> efi-pstore working.
>
> ```
> $ lsmod | grep efi
> efi_pstore 16384 0
> pstore 28672 1 efi_pstore
> efivarfs 16384 1
> $ dmesg |
To be honest, I have a question on how this works.
As the comment says, we need to call pmd_read_atomic before using
pte_offset_map_lock to avoid data corruption.
For example, in function swapin_walk_pmd_entry:
pmd_none_or_trans_huge_or_clear_bad(pmd)
pmd_read_atomic(pmd)
From: Heiher
Take the case where we have:
t0
| (ew)
e0
| (et)
e1
| (lt)
s0
t0: thread 0
e0: epoll fd 0
e1: epoll fd 1
s0: socket fd 0
ew: epoll_wait
et: edge-trigger
lt: level-trigger
We only need to wakeup nested epoll fds if somethin
Hi,
On Tue, Sep 24, 2019 at 11:19 PM Jason Baron wrote:
>
>
>
> On 9/24/19 10:06 AM, Heiher wrote:
> > Hi,
> >
> > On Mon, Sep 23, 2019 at 11:34 PM Jason Baron wrote:
> >>
> >>
> >>
> >> On 9/20/19 12:00 PM, Jason Baron wrote:
> >>> On 9/19/19 5:24 AM, hev wrote:
> From: Heiher
>
> >>
On 19. 9. 25. 오전 4:37, Matthias Kaehlcke wrote:
> On Fri, Sep 20, 2019 at 10:15:57AM +0900, Chanwoo Choi wrote:
>> Hi,
>
> sorry for the delayed response, you message got buried in my
> mailbox.
>
>> On 19. 9. 20. 오전 2:44, Matthias Kaehlcke wrote:
>>> Add a tracepoint for frequency changes of dev
On Mon, Sep 23, 2019 at 1:26 PM Florian Weimer wrote:
> * Michael Kerrisk:
> >The pidfd_send_signal() system call allows the avoidance of race
> >conditions that occur when using traditional interfaces (such as
> >kill(2)) to signal a process. The problem is that the t
There is a message in _supported_fs():
_notrun "not suitable for this filesystem type: $FSTYP"
for when overlay usecases are executed on a chararcter device based base
fs. _overay_config_override() detects that the current base fs partition
is not a block device, and FSTYP won't be overwritten
The function involved should be pte_offset_map_lock and we never have
function pmd_offset_map_lock defined.
Fixes: 26c191788f18 ("mm: pmd_read_atomic: fix 32bit PAE pmd walk vs
pmd_populate SMP race conditio")
Signed-off-by: Wei Yang
---
Hope my understanding is correct.
---
arch/x86/include
>>
>>>> Signed-off-by: Patrick Bellasi
>>>> Link:
>>>> https://lore.kernel.org/lkml/1898d3c9-1997-17ce-a022-a5e28c8dc...@infradead.org/
>>>> Fixes: commit babbe170e05 ("sched/uclamp: Update CPU's refcount on TG's
>>>>
In rtl_usb_probe if allocation for usb_data fails the allocated hw
should be released. In addition the allocated rtlpriv->usb_data should
be released on error handling path.
Signed-off-by: Navid Emamdoost
---
drivers/net/wireless/realtek/rtlwifi/usb.c | 5 -
1 file changed, 4 insertions(+),
This patch prints the stddev and hist for the cycles diff of
program block. It can help us to understand if the cycles
is noisy or not.
This patch is inspired by Andi Kleen's patch
https://lwn.net/Articles/600471/
We create new option '--cycles-hist'.
Example:
perf record -b ./div
perf record -
In alloc_sgtable if alloc_page fails, along with releasing previously
allocated pages, the allocated table should be released too.
Signed-off-by: Navid Emamdoost
---
drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/intel/iwlwifi
From: "Matthew Wilcox (Oracle)"
This function assumed that compound pages were necessarily PMD sized.
While that may be true for some users, it's not going to be true for
all users forever, so it's better to remove it and avoid the confusion
by just using compound_nr() or page_size().
Signed-off
From: "Matthew Wilcox (Oracle)"
Signed-off-by: Matthew Wilcox (Oracle)
---
fs/xfs/xfs_file.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index d952d5962e93..9445196f8056 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@
From: "Matthew Wilcox (Oracle)"
This new function allows page cache pages to be allocated that are
larger than an order-0 page.
Signed-off-by: Matthew Wilcox (Oracle)
---
include/linux/pagemap.h | 14 +++---
mm/filemap.c| 12
2 files changed, 19 insertions(+),
From: "Matthew Wilcox (Oracle)"
By permitting NULL or order-0 pages as an argument, and returning the
argument, callers can write:
return prep_transhuge_page(alloc_pages(...));
instead of assigning the result to a temporary variable and conditionally
passing that to prep_transhuge_page(
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